A hydrophilic falling film internal micro-fin tube evaporative condenser

Abstract

The present invention belongs to the technical field of evaporation and condensation, and in particular to a hydrophilic falling-film internal micro-fin tube evaporative condenser, comprising a device shell, a water storage tank installed on the surface of the device shell, and a water pump installed inside the water storage tank, a liquid inlet pipe and a liquid outlet pipe are installed on the surface of the water storage tank, the liquid inlet pipe and the liquid outlet pipe are respectively fixedly connected to the water storage tank through through hole 1 and through hole 2 opened on the surface of the water storage tank, and also comprises an elliptical coil 1 arranged inside the device shell, the elliptical coil 1 is spirally arranged inside the device shell, the cross-sectional shape of the elliptical coil 1 is elliptical, the surface of the elliptical coil 1 is laser etched to improve the surface hydrophilicity, and the inside of the elliptical coil 1 is uniformly provided with micro-convex ribs; the present application improves the condensation efficiency of the device by elliptical design of the condensing coil and laser etching on its surface to increase the hydrophilicity and by providing micro-convex ribs and cooling inner tubes inside.

Description

Technical Field

[0001] The invention belongs to the technical field of evaporation and condensation, and in particular relates to a hydrophilic falling film inner micro-fin tube evaporative condenser. Background Art

[0002] Evaporative condenser is a heat exchange device commonly used in medium and large refrigeration and air conditioning systems. The device is mainly composed of several key components, including PVC heat exchange layer, spray water distribution system, heat exchanger core, water collector and water tank. The working principle of evaporative condenser is to use spray water as cooling medium, water forms a water film on the outside of the coil, and exchanges heat with the process fluid in the coil;

[0003] In related technologies, the efficient heat transfer of evaporative condensers depends largely on the evaporation rate of the coil surface. Usually, a circulating water pump is used to drive a high-pressure nozzle to spray water on the internal coil, and air cooling is used to accelerate the heat exchange of the water film. This heat exchange method is affected by the thickness of the water film. Too high or too low a thickness of the water film can easily lead to reduced heat exchange efficiency.

[0004] In order to solve the above problems, the present application proposes a hydrophilic falling film internal micro-fin tube evaporative condenser. Summary of the invention

[0005] The present invention provides a hydrophilic falling film internal micro-fin tube evaporative condenser, which can effectively solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a hydrophilic falling film internal micro-fin tube evaporative condenser, comprising a device housing, a water storage tank installed on the surface of the device housing, and a water pump installed inside the water storage tank, a liquid inlet pipe and a liquid outlet pipe are installed on the surface of the water storage tank, and the liquid inlet pipe and the liquid outlet pipe are respectively fixedly connected to the water storage tank through a through hole 1 and a through hole 2 opened on the surface of the water storage tank;

[0007] It also includes an elliptical coil 1 arranged inside the device shell, the elliptical coil 1 is spirally arranged inside the device shell, the cross-sectional shape of the elliptical coil 1 is elliptical, the surface of the elliptical coil 1 is laser etched to improve the surface hydrophilicity, the inside of the elliptical coil 1 is evenly provided with micro-convex ribs, the inside of the elliptical coil 1 is provided with an inner tube 1, when cooling, part of the water inside the water tank is sprayed onto the surface of the elliptical coil 1 by the water pump through the spray mechanism, and part of the water passes through the inside of the inner tube 1 and flows back to the inside of the water tank after cooling, the upper surface of the device shell is provided with an air cooling component, the inside of the inner tube 1 is provided with an impeller, the power of the air cooling component is transmitted to the impeller, and the air cooling efficiency and the cooling rate of the inner tube 1 can be synchronously regulated.

[0008] As a preferred hydrophilic falling film internal micro-fin tube evaporative condenser of the present invention, the air cooling component includes a connecting pipe fixedly connected to a circular groove one opened on the upper surface of the inner box body, a ventilation cavity is formed between the inner box body and the device shell, the elliptical coil one is located inside the inner box body, an inner tube one is arranged inside the elliptical coil one, one end of the inner tube one passes through a circular hole one opened on the surface of the liquid inlet pipe and penetrates the surface of the liquid inlet pipe to extend to the inside of the water tank near the bottom surface, the other end of the inner tube one passes through a circular hole two opened on the surface of the elliptical coil one and penetrates the surface of the elliptical coil one to extend between the device shell and the inner box body, and the inner tube one is sealed and fixedly connected to the elliptical coil one.

[0009] As a preferred hydrophilic falling film internal micro-fin tube evaporative condenser of the present invention, the surface of the inner box body is fixedly connected with coil 2, one end of the coil 2 is fixedly connected to one end of the inner tube 1 extending into the ventilation cavity, the other end of the coil 2 is fixedly connected to a buffer water tank, the buffer water tank is fixedly connected to the inner box body, the coil 2 is connected with the inner tube 1 and the interior of the buffer water tank, a control room is provided on the surface of the buffer water tank, the buffer water tank is connected with the interior of the water storage tank through the control room, and the two ends of the elliptical coil 1 respectively pass through the inner box The surface of the body, the surface of the device shell and the surface of the water tank extend to the interior of the water tank, the elliptical coil one is fixedly connected to the inner box body through two circular holes seven opened on the surface of the inner box body, the elliptical coil one is fixedly connected to the device shell through two circular holes eight opened on the surface of the device shell, the elliptical coil one is fixedly connected to the water tank through two circular holes nine opened on the surface of the water tank, and one end of the liquid inlet pipe and the liquid outlet pipe located inside the water tank is fixedly connected to the two ends of the elliptical coil one.

[0010] As a preferred hydrophilic falling film internal micro-fin tube evaporative condenser of the present invention, the control room includes a connecting tube one fixedly connected to a circular hole three opened on the surface of the buffer water tank, the surface of the connecting tube one is fixedly connected to a small unit water tank, the interior of the small unit water tank is provided with an adjusting buoyancy block, a temperature control one-way valve is installed in a circular hole four opened on the surface of the small unit water tank near the bottom, the water outlet of the temperature control one-way valve is fixedly connected to a connecting tube two, and the end of the connecting tube two away from the temperature control one-way valve is fixedly connected to a circular hole five opened on the surface of the water storage tank.

[0011] As a preferred hydrophilic falling film internal micro-fin tube evaporative condenser of the present invention, the regulating float block includes a buoyancy block slidably connected to the inside of the small unit water tank, the inside of the buoyancy block is provided with at least one π-shaped through groove, the inside of the π-shaped through groove is slidably connected with a magnetic block, the inside of the π-shaped through groove is symmetrically fixedly connected with a magnetic ring, the upper surface and bottom surface of the magnetic block are fixedly connected with a trigger rod, and the trigger rod is slidably connected to the buoyancy block through a circular hole six provided on the surface of the buoyancy block.

[0012] As a preferred hydrophilic falling film internal micro-fin tube evaporative condenser of the present invention, a connecting pipe is fixedly connected in a circular groove 1 opened on the upper surface of the inner box body, and the connecting pipe is fixedly connected in a circular groove 2 opened on the surface of the device shell, and a plurality of auxiliary air outlets are opened on the surface of the device shell, and a ring body 1 is rotatably connected to the upper surface of the connecting pipe, and a fan blade 1 is fixedly connected to the interior of the ring body 1, and the surface of the ring body 1 is fixedly connected with fan blade 2 in an annular array, and an annular mounting frame is provided on the outer side of the ring body 1, and the annular mounting frame is fixedly connected to the device shell, and the auxiliary air outlet is located between the annular mounting frame and the ring body 1, and a driving motor is installed on the upper surface of the annular mounting frame, and one end of the output shaft of the driving motor is fixedly connected to the fan blade 1.

[0013] As a preferred hydrophilic falling film internal micro-fin tube evaporative condenser of the present invention, a connecting cavity is provided on the surface of the elliptical coil one, a connecting inner cavity is provided inside the connecting cavity, the elliptical coil one is connected with the inside of the connecting cavity, the connecting inner cavity is connected with the inside of the inner tube one, a transmission rod is fixedly connected to the bottom surface of the fan blade one, one of the transmission rods passes through the connecting cavity and the surface of the connecting inner cavity and extends to the inside of the connecting inner cavity, the transmission rod is rotatably connected to the connecting cavity and the connecting inner cavity respectively through two bearings one and two oil seals, and the impeller is installed at the bottom end of the transmission rod.

[0014] As a preferred hydrophilic falling film internal micro-fin tube evaporative condenser of the present invention, the interior of the water tank is symmetrically fixedly connected with a filter plate, the water pump and the end of the inner tube extending into the interior of the water tank are both located between the two filter plates, and the upper surface of the elliptical coil is provided with a T-shaped float rod.

[0015] As a preferred hydrophilic falling film internal micro-fin tube evaporative condenser of the present invention, the T-shaped floating rod is fixedly connected to the inside of the regulating air port, the regulating air port is slidably connected to the inside of the regulating air port, and the surface of the regulating air port is provided with small holes in a circular array.

[0016] As a preferred hydrophilic falling film internal micro-fin tube evaporative condenser of the present invention, a recovery straw is fixedly connected to the circular hole 10 opened on the surface of the water storage tank, and the recovery straw is fixedly connected to the circular hole 11 opened on the surface of the device shell, and one end of the recovery straw extends to the water collecting tank at the bottom of the inner box body.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0018] First, the use of elliptical coils and micro-convex ribs can increase the surface heat transfer coefficient by 2 to 3 times compared with the bare tube (calculated based on the area of ​​the bare tube of equal length), while the pressure drop increases by only 1 to 2 times. The enhanced heat transfer is significantly greater than the increase in pressure drop. Secondly, compared with the bare tube, the micro-fin tube has a small increase in the mass per unit length of the tube, which is conducive to controlling the material cost.

[0019] Second, by using laser etching technology on the surface of the elliptical coil, the hydrophilicity of the outer surface of the stainless steel tube is enhanced. A low-pressure water pump can be used to achieve a hydrophilic falling film effect under the condition of low-pressure dripping water distribution, which has a high surface wetting rate and excellent heat exchange effect;

[0020] 3. By adopting an optimized ratio of elliptical flat tubes, a compact plate-tube heat exchange core is formed, which effectively reduces the wind resistance of the heat exchanger and reduces the vortex at the tail of the condenser tube compared to round tubes, thereby significantly improving the use of heat exchange efficiency;

[0021] Fourth, by arranging an inner tube 1 inside the elliptical coil 1 and allowing the cooling water in the inner tube 1 to be cooled separately through an independent ventilation cavity before returning to the inside of the water storage tank, the cooling efficiency of the device for the fluid to be cooled inside the elliptical coil 1 can be further improved. At the same time, by utilizing the rotational power of the fan blade 1 at the top of the device, the circulation speed of the cooling water inside the inner tube 1 is increased, and the fan blade speed and the water flow speed inside the inner tube 1 can be adjusted synchronously. Under the condition of a certain water film thickness, the cooling efficiency of the inner tube 1 is further improved. At the same time, by utilizing the negative pressure inside the water storage tank, the water accumulated in the water collection tank at the bottom of the inner box body is recycled, thereby improving the utilization rate of the cooling water; BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the installation structure of the filter plate in the present invention;

[0025] Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle;

[0026] Figure 4 This is a schematic diagram of the installation structure of the coil 2 in the present invention;

[0027] Figure 5 This is a schematic diagram of the installation structure of the buffer water tank in the present invention;

[0028] Figure 6 It is a schematic diagram of the installation structure of the small and medium-sized unit water tank of the present invention;

[0029] Figure 7 This is a schematic diagram of the installation structure of the magnetic blocking block in the present invention;

[0030] Figure 8 It is a schematic diagram of the installation structure of the magnetic ring in the present invention;

[0031] Fig. 9 It is a schematic diagram of the installation structure of the transmission rod in the present invention;

[0032] Fig.10 This is a schematic diagram of the installation structure of the elliptical coil 1 in the present invention;

[0033] Fig.11 It is a schematic diagram of the structure of the micro-convex ribs in the present invention;

[0034] Fig.12 It is a schematic diagram of the installation structure of the inner tube 1 and the coil tube 2 in the present invention.

[0035] In the figure:

[0036] 101. device housing; 102. water storage tank; 103. water pump; 104. liquid inlet pipe; 105. liquid outlet pipe;

[0037] 201, inner box; 202, connecting pipe; 203, auxiliary air outlet; 204, fan blade 1; 205, ring body 1; 206, fan blade 2; 207, ring mounting frame; 208, drive motor; 211, elliptical coil 1; 212, inner tube 1; 213, coil 2; 214, buffer water tank; 215, small unit water tank; 216, connecting pipe 1; 217, temperature control one-way valve; 218, connecting Through pipe 2; 219, buoyancy block; 220, π-shaped through groove; 221, magnetic ring; 222, magnetic block; 223, trigger rod; 224, connecting cavity; 225, connecting inner cavity; 226, transmission rod; 227, impeller; 228, recovery straw; 229, filter plate; 230, regulating air port; 231, regulating air whistle; 232, T-shaped floating rod; 233, small hole; 2110, micro-convex rib. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention;

[0039] Example 1: Figure 1-Figure 12 As shown, the present invention provides a technical solution, a hydrophilic falling film internal micro-fin tube evaporative condenser, comprising a device housing 101, a water tank 102 installed on the surface of the device housing 101, and a water pump 103 installed inside the water tank 102, a liquid inlet pipe 104 and a liquid outlet pipe 105 are installed on the surface of the water tank 102, and the liquid inlet pipe 104 and the liquid outlet pipe 105 are fixedly connected to the water tank 102 through through holes 1 and 2 opened on the surface of the water tank 102, respectively.

[0040] like Figure 1-Figure 12 As shown, the device housing 101 also includes an elliptical coil 211 disposed inside the device housing 101, the elliptical coil 211 is spirally arranged inside the device housing 101, the cross-sectional shape of the elliptical coil 211 is elliptical, the surface of the elliptical coil 211 is laser etched to improve the surface hydrophilicity, the inside of the elliptical coil 211 is evenly provided with micro-convex ribs 2110, the inside of the elliptical coil 211 is provided with an inner tube 212, when cooling, part of the water inside the water tank 102 is sprayed onto the surface of the elliptical coil 211 by the water pump 103 through the spray mechanism, and part of the water passes through the inside of the inner tube 212 and flows back to the inside of the water tank 102 after cooling, the upper surface of the device housing 101 is provided with an air cooling component, the inside of the inner tube 212 is provided with an impeller 227, the power of the air cooling component is transmitted to the impeller 227, and the air cooling efficiency and the cooling rate of the inner tube 212 can be synchronously regulated.

[0041] like Figure 1-Figure 12 As shown, an inner box body 201 is arranged inside the device housing 101, and a ventilation cavity is formed between the inner box body 201 and the device housing 101. An elliptical coil 211 is located inside the inner box body 201, and an inner tube 212 is arranged inside the elliptical coil 211. One end of the inner tube 212 passes through a circular hole 1 opened on the surface of the liquid inlet pipe 104 and extends to the inside of the water storage tank 102 near the bottom surface, and the other end of the inner tube 212 passes through a circular hole 2 opened on the surface of the elliptical coil 211 and extends to between the device housing 101 and the inner box body 201. The inner tube 212 is sealed and fixedly connected to the elliptical coil 211.

[0042] like Figure 1-Figure 12As shown, the surface of the inner box 201 is fixedly connected with a coil 213, one end of the coil 213 is fixedly connected to one end of the inner tube 1 212 extending into the ventilation cavity, and the other end of the coil 213 is fixedly connected to a buffer water tank 214, and the buffer water tank 214 is fixedly connected to the inner box 201, and the coil 213 is connected to the inner tube 1 212 and the interior of the buffer water tank 214, and a control room is provided on the surface of the buffer water tank 214, and the buffer water tank 214 is connected to the interior of the water storage tank 102 through the control room, and the two ends of the elliptical coil 1 211 respectively penetrate the surface of the inner box 201 and the device shell The surface of 101 and the surface of the water tank 102 extend to the interior of the water tank 102, the elliptical coil 211 is fixedly connected to the inner box body 201 through two circular holes seven opened on the surface of the inner box body 201, the elliptical coil 211 is fixedly connected to the device shell 101 through two circular holes eight opened on the surface of the device shell 101, the elliptical coil 211 is fixedly connected to the water tank 102 through two circular holes nine opened on the surface of the water tank 102, and one end of the liquid inlet pipe 104 and the liquid outlet pipe 105 located inside the water tank 102 is fixedly connected to the two ends of the elliptical coil 211.

[0043] like Figure 1-Figure 12 As shown, the temperature-controlled chamber includes a connecting pipe 1 216 fixedly connected to a circular hole 3 opened on the surface of a buffer water tank 214, a small unit water tank 215 is fixedly connected to the surface of the connecting pipe 1 216, an adjusting buoyancy block is arranged inside the small unit water tank 215, a temperature-controlled one-way valve 217 is installed in a circular hole 4 opened on the surface of the small unit water tank 215 near the bottom, a water outlet of the temperature-controlled one-way valve 217 is fixedly connected to a connecting pipe 218, and one end of the connecting pipe 218 away from the temperature-controlled one-way valve 217 is fixedly connected to a circular hole 5 opened on the surface of the water storage tank 102.

[0044] like Figure 1-Figure 12 As shown, the regulating float includes a buoyancy block 219 slidably connected to the inside of the small unit water tank 215, at least one π-shaped through groove 220 is opened inside the buoyancy block 219, a magnetic block 222 is slidably connected inside the π-shaped through groove 220, a magnetic ring 221 is symmetrically fixedly connected inside the π-shaped through groove 220, the upper surface and the bottom surface of the magnetic block 222 are fixedly connected to the trigger rod 223, and the trigger rod 223 is slidably connected to the buoyancy block 219 through a circular hole six opened on the surface of the buoyancy block 219.

[0045] like Figure 1-Figure 12As shown, the air cooling component includes a connecting pipe 202 fixedly connected to a circular groove 1 opened on the upper surface of the inner box body 201, the connecting pipe 202 is fixedly connected to a circular groove 2 opened on the surface of the device housing 101, a plurality of auxiliary air outlets 203 are opened on the surface of the device housing 101, a ring body 205 is rotatably connected to the upper surface of the connecting pipe 202, a fan blade 204 is fixedly connected to the interior of the ring body 205, a fan blade 206 is fixedly connected to the surface of the ring body 205 in an annular array, an annular mounting frame 207 is arranged on the outer side of the ring body 205, the annular mounting frame 207 is fixedly connected to the device housing 101, the auxiliary air outlet 203 is located between the annular mounting frame 207 and the ring body 205, a driving motor 208 is installed on the upper surface of the annular mounting frame 207, and one end of the output shaft of the driving motor 208 is fixedly connected to the fan blade 204.

[0046] like Figure 1-Figure 12 As shown, a connecting cavity 224 is provided on the surface of the elliptical coil 211, and a connecting inner cavity 225 is provided inside the connecting cavity 224. The elliptical coil 211 is connected to the inside of the connecting cavity 224, and the connecting inner cavity 225 is connected to the inside of the inner tube 212. A transmission rod 226 is fixedly connected to the bottom surface of the fan blade 204. A portion of the transmission rod 226 passes through the connecting cavity 224 and the surface of the connecting inner cavity 225 and extends to the inside of the connecting inner cavity 225. The transmission rod 226 is rotatably connected to the connecting cavity 224 and the connecting inner cavity 225 respectively through two bearings and two oil seals, and an impeller 227 is installed at the bottom end of the transmission rod 226.

[0047] like Figure 1-Figure 12 As shown, filter plates 229 are symmetrically fixedly connected to the interior of the water tank 102, the water pump 103 and one end of the inner tube 212 extending into the interior of the water tank 102 are both located between the two filter plates 229, and a T-shaped float rod 232 is provided on the upper surface of the elliptical coil 211.

[0048] like Figure 1-Figure 12 As shown, the T-shaped floating rod 232 is fixedly connected with an adjusting air port 230 inside, and the adjusting air port 230 is slidably connected with an adjusting air whistle 231 inside. The surface of the adjusting air port 230 is provided with small holes 233 in a circular array.

[0049] like Figure 1-Figure 12 As shown, a recovery straw 228 is fixedly connected to a circular hole 10 opened on the surface of the water storage tank 102. The recovery straw 228 is fixedly connected to a circular hole 11 opened on the surface of the device housing 101. One end of the recovery straw 228 extends to the water collection tank at the bottom of the inner box body 201.

[0050] It should be noted that at least one air inlet is provided on the surface of the device housing 101 near the bottom, and a filter is installed in the air inlet;

[0051] The surface of the water storage tank 102 is provided with a water replenishment port, which can be used in conjunction with the use of a float valve to connect an external water source to replenish the water lost due to evaporation inside the water storage tank 102;

[0052] The spray mechanism (not shown in the figure) is evenly installed on the inner top surface and side wall of the inner box 201. The spray mechanism is connected to the water outlet of the liquid inlet pipe 104 through a hose (not shown in the figure), so that a layer of liquid film is formed on the surface of the elliptical coil 211 when the device is cooling. This is well known in the prior art and will not be described in detail here.

[0053] The four vertical surfaces of the inner box 201 are all provided with ventilation holes, and the bottom of the inner box 201 forms a water collecting tank for collecting water dripping from the nozzle;

[0054] The surface of the buffer water tank 214 is provided with heat dissipation fins, which is beneficial to improving the cooling speed of the cooling water stored in the buffer water tank 214;

[0055] The temperature control one-way valve 217 also has a temperature control function;

[0056] The inner side wall of the small unit water tank 215 is provided with ridges, so that a gap is left between the bottom surface of the buoyancy block 219 and the inner bottom surface of the small unit water tank 215, so that the buoyancy block 219 is floated by the buoyancy of the water;

[0057] The connecting cavity 224 and the connecting inner cavity 225 are cavities with a larger internal space in a certain section of the elliptical coil 211 and the inner tube 212, respectively, in order to facilitate the transmission rod 226 and the impeller 227 to intervene in the inner tube 212 to provide power;

[0058] When the device is in use, a water collector can be set above the elliptical coil 211 to facilitate the recovery of evaporated cooling water to improve the utilization rate of cooling water. PVC filler can be set inside the inner box 201 to increase the contact time between cooling water and air. This is the prior art, and the working principle and installation method will not be repeated.

[0059] Working principle: During the cooling operation, the driving motor 208 is powered on and the fluid to be cooled is injected into the device through the liquid inlet pipe 104 for cooling. The operation of the driving motor 208 drives the blade 1 204 in the annular mounting frame 207 to rotate. The rotation of the blade 1 204 drives the blade 2 206 to rotate through the ring body 1 205, so that the airflow outside the device enters the device through the air inlet of the device shell 101 from the ventilation cavity between the device shell 101 and the inner box body 201 and the ventilation groove on the surface of the inner box body 201. The gas entering the inner box body 201 cools the liquid film on the surface of the elliptical coil 1 211 and takes the evaporated water vapor out of the device.

[0060] In this embodiment, the rotation of the fan blade 204 causes the impeller 227 connected to the inner cavity 225 to rotate through the transmission of the transmission rod 226. The rotation of the impeller 227 generates negative pressure inside the inner tube 212, thereby causing the impeller 227 to suck the cooling water inside the liquid inlet pipe 104 into the inner tube 212, so that the fluid to be cooled is cooled by the liquid film on the surface of the elliptical coil 211 and the inner tube 212 inside the elliptical coil 211 at the same time, thereby improving the cooling efficiency of the device.

[0061] In this embodiment, the water in the inner tube 1 212 follows the elliptical coil 1 211 to leave the inner box 201, flows to the coil 2 213, and cools the cooling water in the coil 2 213 through the ventilation cavity between the device housing 101 and the inner box 201, and flows into the buffer water tank 214 through the coil 213, thereby increasing the cooling time of the cooling water. The cooling water in the buffer water tank 214 flows into the inner part of the small unit water tank 215 through the connecting pipe 1 216. The cooling liquid in the small unit water tank 215 is filled with coolant by adjusting the floating block, and the connecting pipe 216 is blocked. The volume of the coolant in the small unit water tank 215 is relatively small, and the temperature drops quickly. When the temperature reaches the set value, the temperature control one-way valve 217 starts to release the water in the small unit water tank 215, so that the coolant in the small unit water tank 215 is injected into the water storage tank 102, and is filtered by the filter plate 229 and then pumped by the water pump 103 or sucked by the inner pipe 212 again.

[0062] In this embodiment, the initial position of the adjustment float is located at the bottom of the buoyancy block 219, and the magnetic block 222 is pushed by the trigger rod 223 located on the bottom surface thereof, so that the magnetic block 222 is attracted by the magnetic ring 221 located above, so that the π-shaped through groove 220 keeps the buoyancy block 219 above and below in a state of unobstructedness. When the coolant inside the buffer water tank 214 flows into the buoyancy block 219 through the connecting pipe 216, the coolant flows into the bottom of the small unit water tank 215 from the π-shaped through groove 220, floating the buoyancy block 219. When the buoyancy block 219 floats to near the top surface of the small unit water tank 215, it is pushed by the trigger rod 223 above the magnetic block 222, so that the magnetic block 222 is attracted by the magnetic ring 221 below. At this time, the π-shaped through groove 220 opened in the buoyancy block 219 is in a blocked state, and at the same time, the side surface of the buoyancy block 219 blocks the connecting pipe 216. When the coolant inside the box 215 reaches the set value, the temperature control one-way valve 217 opens, and the cooling water in the small unit water tank 215 flows into the water storage tank 102 through the connecting pipe 218. During this process, the buoyancy block 219 continues to drop, and the connecting pipe 1 216 continues to flow the water in the buffer water tank 214 into the small unit water tank 215. At this time, the buoyancy block 219 remains blocked, so the buoyancy block 219 isolates the coolant with different temperatures above and below it. When the buoyancy block 219 moves to the lowest point inside the small unit water tank 215, the magnetic block 222 is pushed again by the trigger rod 223 below it, so that it is again attracted by the magnetic ring 221 located above the magnetic block 222. At this time, the cooling water above the buoyancy block 219 enters the bottom of the buoyancy block 219 through the π-shaped through groove 220 until the buoyancy block 219 floats to the highest point inside the small unit water tank 215 again.

[0063] In this embodiment, when the liquid inlet pipe 104 is powered on and the inner tube 212 absorbs cooling water in the water tank 102, the inside of the water tank 102 is in a negative pressure state, and the air pressure inside the water tank 102 is balanced by the T-shaped float rod 232. At the same time, an adjusting air port 230 and an adjusting air whistle 231 sliding inside the adjusting air port 230 are provided. The adjusting air whistle 231 is pushed above the small hole 233 by the buoyancy of the coolant inside the water tank 102. When the cooling water level inside the water tank 102 drops to the set value, the adjusting air whistle 231 slides down inside the adjusting air port 230 until the adjusting air port 230 is blocked, and the negative pressure inside the water tank 102 continues to increase. The increased negative pressure causes the coolant accumulated in the water collection tank at the bottom of the inner box body 201 to be sucked into the inside of the water tank 102 through the recovery suction pipe 228 by the water tank 102, and is recycled again after being filtered by the filter plate 229.

[0064] Embodiment 2, based on Embodiment 1, a pressure check valve is installed on the surface of the small unit water tank 215. When the negative pressure inside the water storage tank 102 is relatively large, the cooling water inside the small unit water tank 215 that has not dropped to the set temperature can be sucked into the water storage tank 102 through the pressure check valve to keep the pressure inside the water storage tank 102 within a safe range.

[0065] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hydrophilic falling film internal micro-fin tube evaporative condenser, comprising a device housing (101), a water storage tank (102) mounted on the surface of the device housing (101), and a water pump (103) mounted inside the water storage tank (102); a liquid inlet pipe (104) and a liquid outlet pipe (105) are mounted on the surface of the water storage tank (102); the liquid inlet pipe (104) and the liquid outlet pipe (105) are respectively fixedly connected to the water storage tank (102) through a first through hole and a second through hole opened on the surface of the water storage tank (102); and a spray mechanism is arranged inside the device housing (101); Features: The device also includes an elliptical coil one (211) disposed inside the device housing (101), the elliptical coil one (211) being spirally arranged inside the device housing (101), the cross-sectional shape of the elliptical coil one (211) being elliptical, the surface of the elliptical coil one (211) being laser etched to improve the surface hydrophilicity, the inside of the elliptical coil one (211) being uniformly provided with micro-convex ribs (2110), the inside of the elliptical coil one (211) being provided with an inner tube one (212), and when cooling, the water storage tank A portion of the water inside (102) is sprayed onto the surface of the elliptical coil one (211) by the water pump (103) through a spray mechanism, and a portion of the water passes through the inside of the inner tube one (212) and flows back into the water storage tank (102) after being cooled. An air cooling component is provided on the upper surface of the device housing (101), and an impeller (227) is provided inside the inner tube one (212). The power of the air cooling component is transmitted to the impeller (227), so that the air cooling efficiency and the cooling rate of the inner tube one (212) can be synchronously regulated; An inner box (201) is arranged inside the device housing (101), a ventilation cavity is formed between the inner box (201) and the device housing (101), the elliptical coil one (211) is located inside the inner box (201), an inner tube one (212) is arranged inside the elliptical coil one (211), one end of the inner tube one (212) passes through a circular hole one opened on the surface of the liquid inlet pipe (104), penetrates the surface of the liquid inlet pipe (104) and extends to a position close to the bottom surface of the water storage tank (102), the other end of the inner tube one (212) passes through a circular hole two opened on the surface of the elliptical coil one (211), penetrates the surface of the elliptical coil one (211) and extends to between the device housing (101) and the inner box (201), the inner tube one (212) and the elliptical coil one (211) are sealed and fixedly connected; The surface of the inner box (201) is fixedly connected to a second coil (213); one end of the second coil (213) is fixedly connected to an end of the inner tube (212) extending into the ventilation cavity; the other end of the second coil (213) is fixedly connected to a buffer water tank (214); the buffer water tank (214) is fixedly connected to the inner box (201); the second coil (213) is connected to the inner tube (212) and the interior of the buffer water tank (214); a temperature control chamber is provided on the surface of the buffer water tank (214); the buffer water tank (214) is connected to the interior of the water storage tank (102) via the temperature control chamber; and the two ends of the elliptical coil (211) respectively penetrate the surface of the inner box (201) and the outer shell of the device ( The elliptical coil one (211) is fixedly connected to the inner box body (201) through two circular holes seven opened on the surface of the inner box body (201), and the elliptical coil one (211) is fixedly connected to the device shell (101) through two circular holes eight opened on the surface of the device shell (101). The elliptical coil one (211) is fixedly connected to the water tank (102) through two circular holes nine opened on the surface of the water tank (102), and one end of the liquid inlet pipe (104) and the liquid outlet pipe (105) located inside the water tank (102) is fixedly connected to two ends of the elliptical coil one (211); The control room comprises a connecting pipe 1 (216) fixedly connected to a circular hole 3 opened on the surface of the buffer water tank (214); a small unit water tank (215) is fixedly connected to the surface of the connecting pipe 1 (216); an adjusting buoyancy block is arranged inside the small unit water tank (215); a temperature control one-way valve (217) is installed in a circular hole 4 opened on the surface of the small unit water tank (215) near the bottom; a water outlet of the temperature control one-way valve (217) is fixedly connected to a connecting pipe 2 (218); and one end of the connecting pipe 2 (218) away from the temperature control one-way valve (217) is fixedly connected to a circular hole 5 opened on the surface of the water storage tank (102); The regulating float comprises a buoyancy block (219) slidably connected to the inside of the small unit water tank (215); at least one π-shaped through groove (220) is provided inside the buoyancy block (219); a magnetic block (222) is slidably connected to the inside of the π-shaped through groove (220); a magnetic ring (221) is symmetrically fixedly connected to the inside of the π-shaped through groove (220); a trigger rod (223) is fixedly connected to the upper surface and the bottom surface of the magnetic block (222); the trigger rod (223) is slidably connected to the buoyancy block (219) through a circular hole (6) provided on the surface of the buoyancy block (219); The air cooling component comprises a connecting pipe (202) fixedly connected to a circular groove 1 opened on the upper surface of the inner box (201); the connecting pipe (202) is fixedly connected to a circular groove 2 opened on the surface of the device shell (101); a plurality of auxiliary air outlets (203) are opened on the surface of the device shell (101); a ring body 1 (205) is rotatably connected to the upper surface of the connecting pipe (202); a fan blade 1 (204) is fixedly connected to the interior of the ring body 1 (205); and the surface of the ring body 1 (205) is The annular array is fixedly connected to blade 2 (206); an annular mounting frame (207) is arranged on the outer side of the ring body 1 (205); the annular mounting frame (207) is fixedly connected to the device housing (101); the auxiliary air outlet (203) is located between the annular mounting frame (207) and the ring body 1 (205); a driving motor (208) is installed on the upper surface of the annular mounting frame (207); and one end of the output shaft of the driving motor (208) is fixedly connected to blade 1 (204); A connecting cavity (224) is provided on the surface of the elliptical coil tube (211), a connecting inner cavity (225) is provided inside the connecting cavity (224), the elliptical coil tube (211) is connected to the inside of the connecting cavity (224), the connecting inner cavity (225) is connected to the inside of the inner tube (212), a transmission rod (226) is fixedly connected to the bottom surface of the fan blade (204), a portion of the transmission rod (226) passes through the connecting cavity (224) and the surface of the connecting inner cavity (225) and extends to the inside of the connecting inner cavity (225), the transmission rod (226) is rotatably connected to the connecting cavity (224) and the connecting inner cavity (225) respectively through two bearings (1) and two oil seals, and the impeller (227) is mounted on the bottom end of the transmission rod (226); The interior of the water storage tank (102) is symmetrically fixedly connected with filter plates (229); the water pump (103) and one end of the inner tube (212) extending into the interior of the water storage tank (102) are both located between the two filter plates (229); and the upper surface of the elliptical coil tube (211) is provided with a T-shaped floating rod (232); The T-shaped floating rod (232) is fixedly connected to an adjusting air port (230) inside, an adjusting air whistle (231) is slidably connected to the inside of the adjusting air port (230), and a surface of the adjusting air port (230) is provided with small holes (233) in the form of a ring array; A recovery pipette (228) is fixedly connected to a circular hole 10 opened on the surface of the water storage tank (102); the recovery pipette (228) is fixedly connected to a circular hole 11 opened on the surface of the device housing (101); one end of the recovery pipette (228) extends into a water collection tank at the bottom of the inner box body (201).

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