Anti-freezing assembly and cooling tower comprising same

Abstract

The invention discloses an anti-freezing assembly and a cooling tower comprising the same, and relates to the technical field of cooling towers, the anti-freezing assembly comprises a heat exchanger main body, the outer surface of the heat exchanger main body is provided with a liquid inlet pipe in a communicating manner, and the outer surface of the heat exchanger main body is further provided with a liquid outlet pipe in a communicating manner; the device is fixedly connected to the outer surface of the liquid inlet pipe and the outer surface of the liquid outlet pipe and comprises an air bag. According to the anti-freezing assembly, the liquid inlet pipe and the liquid outlet pipe of the heat exchanger body serve as core protection objects, dynamic heat preservation and heat dissipation of a pipeline are achieved through cooperative action of the temperature sensing assembly, the adjusting assembly, the heating assembly and the heat preservation plate, and an air bag of the temperature sensing assembly serves as a temperature sensing and power output core. The adjusting rod of the adjusting assembly is driven to move through volume expansion and contraction, and finally switching of the heat preservation plate between the first state and the second state is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to a freeze-proof assembly and a cooling tower comprising the same, and belongs to the technical field of cooling towers. BACKGROUND

[0002] The freeze-proof assembly of the cooling tower is a key device in the cooling tower system for preventing the freezing of cooling water in low-temperature environments, especially when used in cold regions or winter. The freeze-proof assembly can ensure the normal operation of the cooling tower in low temperatures, prevent the freezing and cracking of pipes, nozzles and other components, and avoid system shutdown or damage.

[0003] The freeze-proof assembly of the cooling tower in the prior art mostly uses a simple heating device to maintain the temperature to prevent the freezing of water pipes and nozzles. The traditional freeze-proof system can only rely on a fixed heating temperature to maintain the freeze-proof effect, and fails to consider the changes in the ambient temperature, which has defects. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provide a freeze-proof assembly and a cooling tower comprising the same, which has dynamic heat preservation and heat dissipation of the pipes, effectively prevents the freezing of the pipes of the cooling tower, and ensures the efficient operation of the heat dissipation function.

[0005] The first aspect of the present application provides a freeze-proof assembly, comprising a heat exchanger body, an inlet pipe is connected to the outer surface of the heat exchanger body, and an outlet pipe is also connected to the outer surface of the heat exchanger body. The freeze-proof assembly further comprises: A plurality of temperature sensing assemblies are fixedly connected to the outer surfaces of the inlet pipe and the outlet pipe and comprise air bags. A plurality of adjusting assemblies are arranged at one end of the plurality of temperature sensing assemblies and comprise adjusting rods. A heating assembly is arranged inside the inlet pipe and the outlet pipe. A plurality of heat preservation plates are arranged at one end of the adjusting rods. When the air bags are extended and retracted, the adjusting rods and the heat preservation plates can be switched between a first state and a second state. In the first state, the adjusting rods push the heat preservation plates away from the outer surfaces of the inlet pipe and the outlet pipe. In the second state, the adjusting rods drive the heat preservation plates to approach the outer surfaces of the inlet pipe and the outlet pipe.

[0006] Preferably, the temperature sensing assembly further comprises: A plurality of connecting barrels are fixed to the outer surfaces of the inlet pipe and the outlet pipe. A plurality of push blocks are arranged inside the plurality of connecting barrels and have one end fixed inside the plurality of air bags. A plurality of push rods have one end fixed to one side of the push blocks and the other end rotatably connected to one end of the plurality of adjusting rods. Two of the adjusting rods are a group, and opposite surfaces of each group of the adjusting rods are rotationally connected through a rotating shaft.

[0007] By adopting the above technical scheme, the precise control of fluid flow can be effectively realized under the cooperation of multiple air bags and adjusting rods, especially in the working of the temperature sensing assembly, the temperature change can be better responded, the cooperation of multiple connecting barrels and push blocks enables the liquid to be quickly and accurately adjusted when entering and exiting the pipeline, and the stability and reaction speed of the system are adjusted through the design of the push rod, the rotating shaft design of the adjusting rod enables each group of adjusting rods to flexibly work with other components, thereby providing more efficient temperature adjustment and control functions.

[0008] Preferably, the adjusting assembly further comprises: Limiting sliding rails are provided, and are fixed to the inner side surfaces of the multiple heat preservation plates; Sliding blocks are provided, two of which are a group, and one end of multiple groups of the sliding blocks is rotationally connected to one end of multiple groups of the adjusting rods; Two of the sliding blocks are a group, and inner walls of multiple groups of the sliding blocks are slidingly sleeved on outer surfaces of the multiple limiting sliding rails.

[0009] By adopting the above technical scheme, the design of the limiting sliding rails and the sliding blocks can further optimize the performance of the temperature sensing assembly. Specifically, the limiting sliding rails can ensure the stability of the sliding blocks during movement, avoiding deviation caused by external force or vibration, thereby improving the accuracy and reliability of the system. The rotational connection of each group of sliding blocks with the adjusting rods makes the adjusting process more flexible and efficient.

[0010] Preferably, the adjusting assembly further comprises: Side plates are provided, and are fixedly connected to outer surfaces of the liquid inlet pipe and the liquid outlet pipe; Limiting sliding grooves are provided, and are opened in opposite surfaces of the four side plates, and are equidistantly distributed; Limiting blocks are provided, and outer surfaces of the limiting blocks are embedded in interiors of the multiple limiting sliding grooves; Two of the limiting blocks are a group, and opposite surfaces of multiple groups of the limiting blocks are fixedly connected to two ends of the multiple heat preservation plates.

[0011] By adopting the above technical scheme, the design of the limiting sliding grooves and the limiting blocks can further improve the stability and adjusting precision of the temperature sensing assembly. The limiting sliding grooves ensure the accurate position of the limiting blocks in the structure, avoiding deviation or vibration during use, thereby improving the stability of the overall system. The connection of the limiting blocks with the heat preservation plates enables the temperature sensing assembly to effectively adjust when the temperature changes, while maintaining the temperature control balance inside the system.

[0012] Preferably, the heating assembly comprises: Two heating wires are fixedly connected to the inner part of the liquid inlet pipe and the liquid outlet pipe. Two pressure switches one are fixedly connected to the outer surface of the liquid inlet pipe and the liquid outlet pipe. The two pressure switches one and the two heating wires are electrically connected.

[0013] The design of the heating wire and the pressure switch one can effectively improve the temperature control precision and safety of the heating assembly.

[0014] Preferably, the outer surface of the two side plates is fixedly connected with a support, one side of the two supports is fixedly connected with a pressure switch two, and a fan one is arranged between the liquid inlet pipe and the liquid outlet pipe. The two pressure switches two are electrically connected with the fan one.

[0015] The second aspect of the present application also provides a cooling tower comprising the anti-freezing assembly, further comprising a shell, the upper surface of the shell is communicated with a fan two, the lower part of the fan two is provided with a spraying assembly, and the spraying assembly is located above the heat exchanger body.

[0016] The combination of the support and the pressure switch two fixedly connected to the outer surface of the two side plates can detect and adjust the pressure change in real time under different working conditions, avoid damage to the system caused by excessive pressure, and enhance the safety of the system.

[0017] Preferably, the inside of the shell is embedded with a water storage tank, and the water storage tank is located below the heat exchanger body.

[0018] When the system is running, the water in the water storage tank is extracted and sprayed to the surface of the heat exchanger body through the spraying assembly, and the heat is taken away through the evaporation and heat transfer process.

[0019] Preferably, the rear surface of the shell is fixedly connected with a back plate.

[0020] The back plate seals the shell to avoid the entry of sundries.

[0021] Preferably, the outer surface of the shell is provided with two protective windows, and the two protective windows are oppositely arranged.

[0022] The two protective windows ensure the air circulation.

[0023] The present application has the following advantages: 1. The anti-freezing assembly, which takes the inlet pipe and outlet pipe of the heat exchanger body as the core protection object, realizes the dynamic heat preservation and heat dissipation of the pipeline through the coordinated action of the temperature sensing assembly, the adjusting assembly, the heating assembly and the heat preservation plate, wherein the air bag of the temperature sensing assembly serves as the temperature sensing and power output core, drives the adjusting rod of the adjusting assembly to move through the volume expansion, and finally realizes the switching of the heat preservation plate between the first state and the second state.

[0024] 2. The anti-freezing assembly, the square limit block at both ends of the heat preservation plate is embedded in the limit sliding groove of the side plate, and can only slide smoothly along the radial direction of the pipeline, avoiding the deviation or rotation of the heat preservation plate. The equidistantly distributed sliding grooves provide multiple support points for the limit block, so that the moving speed and distance of multiple heat preservation plates are consistent when they are synchronized to approach the pipeline. When the heat preservation plate reaches the second state of wrapping the pipeline, the limit block slides to the innermost side of the sliding groove, avoiding excessive extrusion of the pipeline, and also ensuring the accurate edge fitting of multiple heat preservation plates, which together with the four side plates forms a closed heat preservation space.

[0025] 3. The anti-freezing assembly, when the heat preservation plate is tightened, the diaphragm type pressure switch one is extruded, the power supply of the spiral heating wire is turned on, the solution in the inlet pipe and outlet pipe is heated to above 5℃, the closed space formed by the tightened heat preservation plate improves the heating efficiency, and when the heat preservation plate is unfolded, the plunger type pressure switch two is extruded, the power supply of the fan one is turned on, the fan one accelerates the air circulation on the surface of the pipeline to enhance the heat dissipation, and cooperates with the fan two.

[0026] 4. The cooling tower, when the cooling tower starts, the fan two operates to form upward suction, the outside air enters through the air holes of the protective window, forming an airflow from bottom to top. At the same time, the spray assembly atomizes the cold water in the water storage tank and sprays it on the outer surface of the heat exchanger body, absorbing the heat of the high-temperature medium inside, part of the water evaporates into water vapor, under the action of the airflow, the water vapor carrying heat and the unevaporated water droplets move upward, after mixing with the cold air, the water vapor condenses and releases heat, and the heat is discharged with the airflow. The water droplets that complete heat exchange fall into the water storage tank and are recycled after being filtered by the filter layer. The back plate blocks the sundries and guides the airflow, and the protective window ensures ventilation and is convenient for observation and cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the anti-freezing assembly and the cooling tower containing the assembly in the present application; Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the anti-freezing assembly and the cooling tower containing the assembly in the present application; Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the anti-freezing assembly inlet pipe in the present application; Figure 4 It is a schematic diagram of the rear view of the crushing assembly connecting cylinder of the anti-freezing assembly in the present application; Figure 5It is the overhead view structural schematic diagram of the heat preservation plate of the anti-freezing assembly in the application; Figure 6 It is the structural schematic diagram of the side plate of the anti-freezing assembly in the application; Figure 7 It is the side view structural schematic diagram of the limiting slide rail of the anti-freezing assembly in the application; Figure 8 It is the partial rear view structural schematic diagram of the anti-freezing assembly and the cooling tower containing the assembly in the application; In the figure: 1, shell; 2, liquid inlet pipe; 3, liquid outlet pipe; 4, heating wire; 5, side plate; 6, connecting cylinder; 7, adjusting rod; 8, heat preservation plate; 9, fan one; 10, fan two; 11, back plate; 12, protective window; 13, spraying assembly; 15, heat exchanger main body; 16, water storage tank; 17, limiting slide rail; 18, sliding block; 19, limiting slide groove; 20, pressure switch one; 21, support; 22, pressure switch two; 24, air bag; 25, push block; 26, push rod; 27, limiting block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0029] Embodiment 1: Please refer to Figures 1-8 As shown in the figure, the anti-freezing assembly comprises a heat exchanger main body 15, the outer surface of the heat exchanger main body 15 is provided with a liquid inlet pipe 2 in communication, and the outer surface of the heat exchanger main body 15 is further provided with a liquid outlet pipe 3 in communication. The anti-freezing assembly further comprises: a plurality of temperature sensing assemblies, which are fixedly connected to the outer surfaces of the liquid inlet pipe 2 and the liquid outlet pipe 3 and comprise air bags 24; a plurality of adjusting assemblies, which are arranged at one end of the plurality of temperature sensing assemblies and comprise adjusting rods 7; a heating assembly, which is arranged in the interiors of the liquid inlet pipe 2 and the liquid outlet pipe 3; and a plurality of heat preservation plates 8, which are arranged at one end of the adjusting rods 7. When the air bags 24 are extended or retracted, the adjusting rods 7 and the heat preservation plates 8 can be switched between a first state and a second state. In the first state, the adjusting rods 7 push the heat preservation plates 8 away from the outer surfaces of the liquid inlet pipe 2 and the liquid outlet pipe 3, and in the second state, the adjusting rods 7 drive the heat preservation plates 8 to approach the outer surfaces of the liquid inlet pipe 2 and the liquid outlet pipe 3.

[0030] As some examples, in the embodiment, the temperature sensing assembly comprises: a connecting cylinder 6, an air bag 24, a push block 25 and a push rod 26.

[0031] The plurality of connecting tubes 6 for limiting position are fixed on the outer surfaces of the liquid inlet pipe 2 and the liquid outlet pipe 3 by hexagon bolts.

[0032] The air bag 24 for driving is pasted on the inner wall of the connecting tube 6 by glue.

[0033] The plurality of push blocks 25 for guiding force are embedded in the inside of the connecting tube 6.

[0034] The push rod 26 for pushing and pulling is fixed on one side surface of the push block 25 by hexagon bolts.

[0035] It should be noted that the connecting tube 6 is made of heat-conducting material, which is prior art and will not be described in detail here. The push block 25 transmits kinetic energy and limits the movement track of the push rod 26 to prevent the push rod 26 from tilting, so its shape includes but is not limited to rectangle, circle or polygon. The application selects a cylinder. In addition, the air bag 24 has various shape structures, which are not limited in the application. As a preferred mode, the air bag 24 with a wrinkled shape is used in the embodiment.

[0036] As some examples, in the embodiment, the adjusting assembly includes the side plate 5, the adjusting rod 7, the limiting slide rail 17 and the sliding block 18.

[0037] The side plate 5 for supporting is fixed on the outer surfaces of the liquid inlet pipe 2 and the liquid outlet pipe 3 by bolts. The adjusting rod 7 for guiding force is connected to one end of the push rod 26 and one end of the sliding block 18 by a rotating shaft, respectively. Each group of adjusting rods 7 is crossly arranged by a rotating shaft.

[0038] The limiting slide rail 17 for limiting position is fixed on the inner side surface of the heat preservation plate 8 by bolts.

[0039] The sliding block 18 for connecting is slidingly sleeved on the outer surface of the limiting slide rail 17.

[0040] It should be noted that the limiting slide rail 17 only limits the movement track of the adjusting rod 7, so its shape includes but is not limited to rectangle, circle or polygon. The application selects a cylinder.

[0041] In this embodiment, when the temperature of the liquid inlet pipe 2 and the liquid outlet pipe 3 is lower than the threshold value, the plurality of air bags 24 are reduced in volume, the plurality of push blocks 25 slide in the inside of the connecting barrel 6 under the pulling of the plurality of air bags 24, one end of the push rod 26 pulls the adjusting rod 7, each group of adjusting rods 7 rotates through the rotating shaft, the upper end and the lower end of each group of adjusting rods 7 are away from each other, the sliding block 18 slides on the outer surface of the limiting sliding rail 17, and the plurality of heat preservation plates 8 move between the corresponding two side plates 5, close to the liquid inlet pipe 2 and the liquid outlet pipe 3, until the edges of the plurality of heat preservation plates 8 are in close contact, and the outer surfaces of the liquid inlet pipe 2 and the liquid outlet pipe 3 are covered by the four side plates 5, effectively preventing heat loss, heat preservation of the liquid inlet pipe 2 and the liquid outlet pipe 3, when the temperature of the liquid inlet pipe 2 and the liquid outlet pipe 3 is higher than the threshold value, the plurality of air bags 24 increase in volume, the plurality of push blocks 25 push the push rod 26, the upper end and the lower end of each group of adjusting rods 7 are close to each other, the limiting sliding rail 17 is pushed by the sliding block 18, and the plurality of heat preservation plates 8 are away from the liquid inlet pipe 2 and the liquid outlet pipe 3, to ensure heat dissipation of the liquid inlet pipe 2 and the liquid outlet pipe 3.

[0042] Embodiment 2: Please refer to Figures 1-8 As shown in the figure, the anti-freezing assembly, the adjusting assembly further comprises: the side plate 5, which is provided with four, is fixedly connected to the outer surfaces of the liquid inlet pipe 2 and the liquid outlet pipe 3; the limiting sliding groove 19, which is provided with a plurality of, is opened on the opposite surfaces of the four side plates 5 and is equidistantly distributed; the limiting block 27, which is provided with a plurality of, is embedded in the inside of the plurality of limiting sliding grooves 19; wherein, two limiting blocks 27 are a group, and the opposite surfaces of the plurality of limiting blocks 27 are fixedly connected to the two ends of the plurality of heat preservation plates 8.

[0043] As some examples, the adjusting assembly comprises: the limiting sliding groove 19 and the limiting block 27; wherein, the limiting sliding groove 19 which plays a limiting role is opened on the opposite surfaces of the four side plates 5.

[0044] Wherein, the limiting block 27 which plays a supporting role is fixed by a bolt at the two ends of the heat preservation plate 8, and the outer surface is embedded in the inside of the limiting sliding groove 19.

[0045] It should be noted that the limiting block 27 only limits the movement track of the heat preservation plate 8, so its shape includes but is not limited to rectangle, circle or polygon, and the square is selected in this application.

[0046] In the embodiment, the limiting blocks 27 at both ends of the heat preservation plate 8 are embedded in the limiting sliding grooves 19 of the side plates 5. The square limiting blocks 27 cannot be separated from the constraint of the sliding grooves and can only slide smoothly along the extension direction of the sliding grooves (the radial direction of the pipeline), thereby avoiding the transverse deviation or rotation of the heat preservation plate 8 due to uneven stress. In the moving process, the equidistantly distributed limiting sliding grooves 19 provide multiple support points for the limiting blocks 27, so that the stress of both ends of the heat preservation plate 8 is balanced. When multiple heat preservation plates 8 are synchronously close to the pipeline, the limiting structure ensures that the moving speed and distance of each heat preservation plate 8 are completely consistent. When the heat preservation plate 8 reaches the second state (wraps the pipeline), the limiting block 27 slides to the innermost end point of the limiting sliding groove 19, thereby avoiding excessive extrusion of the heat preservation plate 8 on the surface of the pipeline and ensuring that the edges of multiple heat preservation plates 8 are accurately aligned and attached, and together with the four side plates 5, forming a closed heat preservation space.

[0047] Embodiment 3 Please refer to Figures 1-8 As shown in the figure, the anti-freezing assembly and the heating assembly include: two heating wires 4 fixedly connected to the inside of the liquid inlet pipe 2 and the liquid outlet pipe 3; two pressure switches one 20 fixedly connected to the outer surface of the liquid inlet pipe 2 and the liquid outlet pipe 3; wherein the two pressure switches one 20 and the two heating wires 4 are electrically connected.

[0048] The outer surface of each of the two side plates 5 is fixedly connected with a bracket 21, one side of each of the two brackets 21 is fixedly connected with a pressure switch two 22, and a fan one 9 is arranged between the liquid inlet pipe 2 and the liquid outlet pipe 3; wherein the two pressure switches two 22 are electrically connected with the fan one 9.

[0049] As some examples, in the embodiment, the heating assembly includes: the heating wire 4, the fan one 9, the pressure switch one 20 and the pressure switch two 22.

[0050] The heating wire 4 for heating is fixed in the inside of the liquid inlet pipe 2 and the liquid outlet pipe 3 by bolts.

[0051] The pressure switch one 20 for on-off is fixed on the outer surface of the liquid inlet pipe 2 and the liquid outlet pipe 3 by bolts.

[0052] It should be noted that the heating wire 4, the fan one 9, the pressure switch one 20 and the pressure switch two 22 are common devices in life, and specific models can be selected according to needs, which will not be described here.

[0053] In this embodiment, when the plurality of heat preservation plates 8 are tightened, the pressure switch 1 is squeezed, the heating wire 4 heats the solution inside the inlet pipe 2 and the outlet pipe 3, and the temperature of the inlet pipe 2 and the outlet pipe 3 is ensured. When the plurality of heat preservation plates 8 are unfolded, the pressure switch 2 is squeezed, the fan 1 drives the air circulation, the pressure switch 1 adopts a diaphragm structure, and when the squeezing force reaches a set value (such as 5N), the internal contact is closed, the power supply circuit of the heating wire 4 is turned on, and the heating wire 4 is spirally wound inside the inlet pipe 2 and the outlet pipe 3. The power is set according to the pipe diameter. After being electrified, the heating wire 4 rapidly heats up, and the solution in the pipe is heated by heat conduction, so that the solution temperature is maintained above the freezing critical value (such as 5℃). At the same time, since the heat preservation plates 8 are in the tightened state at this time, a closed heat preservation space is formed, the heat loss during heating is reduced, and the heating efficiency is improved. When the pipe temperature rises above the threshold value, the plurality of heat preservation plates 8 move away from the pipe under the action of the adjusting assembly and unfold, the back of the heat preservation plate 8 will squeeze the pressure switch 2 installed on the outside of the side plate 5. The pressure switch 2 is a plunger structure, and when the pushing force reaches a set value (such as 3N), the internal mechanical structure acts, the power of the fan 1 is turned on, and the fan 1 is installed on the bracket 21 between the outlet pipe and the inlet pipe. Form a collaborative heat dissipation system with the fan 2 10 described above. After the fan 1 is started, the airflow generated flows along the axis of the pipe, accelerates the air circulation on the surface of the inlet pipe 2 and the outlet pipe 3, and enhances the heat dissipation effect.

[0054] Embodiment 4: Please refer to Figures 1-8 As shown in the figure, the cooling tower comprises an outer shell 1, a fan 2 is arranged on the upper surface of the outer shell 1, a spraying assembly 3 is arranged below the fan 2, the spraying assembly 3 is located above a heat exchanger main body 4, a water storage tank 5 is embedded in the inside of the outer shell 1, the water storage tank 5 is located below the heat exchanger main body 4, a back plate 6 is fixedly connected to the rear surface of the outer shell 1, and two protective windows 7 are arranged on the outer surface of the outer shell 1.

[0055] In this embodiment, when the cooling tower starts, the fan two 10 is first operated, and the installation position of the fan two 10 at the top of the shell 1 forms an upward suction force, so that the external air enters the inside of the shell 1 through the air holes of the protective window 12, and forms an airflow channel from bottom to top, at the same time, the spray assembly 13 is driven by the water pump to transport the cold water in the water storage tank 16 to the spray head through the pipeline, the water is uniformly sprayed on the outer surface of the heat exchanger body 15 after being atomized, the heat exchanger body 15 internally flows the high-temperature medium from the process system, when the atomized water droplets contact the outer surface of the heat exchanger, the heat of the medium is absorbed through heat conduction, the temperature of the water droplets is increased and part of the water droplets is evaporated into water vapor, under the action of the airflow generated by the fan two 10, the water vapor carrying heat and the unevaporated water droplets move upward together, and in the process, the water vapor is fully mixed with the cold air entering from the protective window 12, the water vapor condenses and releases latent heat, the heat is discharged from the top of the shell 1 with the airflow, the water droplets completing heat exchange fall into the water storage tank 16 below under the action of gravity, the bottom of the water storage tank 16 is provided with a filter layer (composed of quartz sand and activated carbon), which can remove impurities and microorganisms in the water to avoid clogging of the spray head, and the filtered cold water enters the circulating pipeline of the spray assembly 13 again to wait for the next spraying, forming a sustainable water circulation system, the back plate 11 as the closed structure of the rear surface of the shell 1 can block the entry of external sundries, and guide the airflow to flow along the direction of the heat exchanger body 15, avoiding airflow short circuit, and the two oppositely arranged protective windows 12 not only ensure air flow through the air holes, but also facilitate observation of the internal spraying and heat exchange state, and the detachable design facilitates regular cleaning.

[0056] The implementation principle of the anti-freezing assembly is: When the temperature of the liquid inlet pipe 2 and the liquid outlet pipe 3 is lower than the threshold value, the plurality of air bags 24 are reduced in volume, so that the plurality of push blocks 25 slide in the inside of the connecting cylinder 6 under the pulling of the plurality of air bags 24, the one end of the push rod 26 pulls the adjusting rod 7, each group of adjusting rods 7 rotates through the rotating shaft, so that the upper and lower two ends of each group of adjusting rods 7 are away from each other, the sliding block 18 slides on the outer surface of the limiting sliding rail 17, and drives the plurality of heat preservation plates 8 to move between the two side plates 5 corresponding to the plurality of heat preservation plates 8, close to the liquid inlet pipe 2 and the liquid outlet pipe 3, until the edges of the plurality of heat preservation plates 8 are in close contact, and the outer surfaces of the liquid inlet pipe 2 and the liquid outlet pipe 3 are covered by the four side plates 5, so as to heat preservation of the liquid inlet pipe 2 and the liquid outlet pipe 3, when the temperature of the liquid inlet pipe 2 and the liquid outlet pipe 3 is higher than the threshold value, the plurality of air bags 24 increase in volume, the plurality of push blocks 25 push the push rod 26, so that the upper and lower two ends of each group of adjusting rods 7 are close to each other, and the plurality of heat preservation plates 8 are away from the liquid inlet pipe 2 and the liquid outlet pipe 3 through the sliding block 18 pushing the limiting sliding rail 17.

[0057] Since the limiting blocks 27 at both ends of the heat preservation plate 8 are embedded in the limiting sliding grooves 19 of the side plates 5, the square limiting blocks 27 cannot be separated from the constraint of the sliding grooves and can only smoothly slide along the extension direction of the sliding grooves (the radial direction of the pipeline), avoiding the transverse deviation or rotation of the heat preservation plate 8 due to uneven stress. In the moving process, the equidistantly distributed limiting sliding grooves 19 provide multiple support points for the limiting blocks 27, so that the stress on both ends of the heat preservation plate 8 is balanced. Especially when multiple heat preservation plates 8 are synchronously close to the pipeline, the limiting structure ensures that the moving speed and distance of each heat preservation plate 8 are completely consistent. When the heat preservation plate 8 reaches the second state (wraps the pipeline), the limiting blocks 27 slide to the innermost end point of the limiting sliding grooves 19, and together with the four side plates 5, form a closed heat preservation space.

[0058] When the multiple heat preservation plates 8 are tightened, the pressure switch one 20 is squeezed, the heating wire 4 heats the solution inside the liquid inlet pipe 2 and the liquid outlet pipe 3, and ensures the temperature of the liquid inlet pipe 2 and the liquid outlet pipe 3. When the multiple heat preservation plates 8 are unfolded, the pressure switch two 22 is squeezed, and the fan one 9 drives air circulation. The pressure switch one 20 adopts a diaphragm type structure, and when the squeezing force reaches a set value (such as 5N), the internal contact is closed, the power supply circuit of the heating wire 4 is connected, and the heating wire 4 is spirally wound inside the liquid inlet pipe 2 and the liquid outlet pipe 3. Its power is set according to the diameter of the pipeline. After being electrified, the heating wire 4 rapidly heats up, and the solution inside the pipe is heated by heat conduction, so that the solution temperature is maintained above the critical antifreeze value. At the same time, since the heat preservation plate 8 is in the tightened state at this time, a closed heat preservation space is formed, reducing heat loss during heating and improving heating efficiency. When the pipeline temperature rises above the threshold value, the multiple heat preservation plates 8 move away from the pipeline under the action of the adjusting assembly and unfold, the back of the heat preservation plate 8 will squeeze the pressure switch two 22 installed on the outside of the side plate 5. The pressure switch two 22 is a plunger type structure, and when the pushing force reaches a set value, the internal mechanical structure acts to connect the power supply of the fan one 9. The fan one 9 is installed on the bracket 21 between the water outlet pipe and the water inlet pipe, and forms a cooperative heat dissipation system with the fan two 10 described above. After the fan one 9 is started, the airflow generated flows along the axial direction of the pipeline, accelerates the air circulation on the surface of the liquid inlet pipe 2 and the liquid outlet pipe 3, and enhances the heat dissipation effect.

[0059] When the cooling tower starts, the fan two 10 is first operated, and the installation position thereof at the top of the shell 1 forms an upward suction force, so that external air enters the shell 1 through the air holes of the protective window 12, forming an airflow channel from bottom to top. At the same time, the spraying assembly 13 is driven by the water pump to transport the cold water in the water storage tank 16 to the spray head through the pipeline. The water is uniformly sprayed on the outer surface of the heat exchanger body 15 after being atomized. The high-temperature medium from the process system flows through the inside of the heat exchanger body 15. When the atomized water droplets contact the outer surface of the heat exchanger, the heat of the medium is absorbed through heat conduction, so that the temperature of the water droplets is increased and part of the water droplets is evaporated into water vapor. Under the action of the airflow generated by the fan two 10, the water vapor carrying heat and the unevaporated water droplets move upward together, and are fully mixed with the cold air entering from the protective window 12 in the process. The water vapor condenses and releases latent heat, and the heat is discharged from the top of the shell 1 with the airflow. The water droplets completing heat exchange fall into the water storage tank 16 below under the action of gravity. The bottom of the water storage tank 16 is provided with a filter layer (composed of quartz sand and activated carbon), which can remove impurities and microorganisms in the water to avoid clogging of the spray head. The filtered cold water enters the circulating pipeline of the spraying assembly 13 again, waiting for the next spraying, forming a sustainable water circulation system. The back plate 11, as a closed structure of the rear surface of the shell 1, can block external impurities from entering and guide the airflow to flow along the direction of the heat exchanger body 15, avoiding airflow short circuit. The two oppositely arranged protective windows 12 not only ensure the air flow through the air holes.

[0060] It will be obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments but can be implemented in other embodiments without departing from the scope of the application. The scope of the application is defined by the appended claims rather than by the description of the exemplary embodiments above, and therefore all changes that come within the meaning and range of equivalents of the claims are to be embraced by the application. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0061] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every implementation embodies an independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. An anti-freezing assembly, comprising a heat exchanger body (15), an inlet pipe (2) is in communication with the outer surface of the heat exchanger body (15), and an outlet pipe (3) is also in communication with the outer surface of the heat exchanger body (15), characterized in that, The anti-freezing assembly further comprises: The temperature sensing assembly is provided with a plurality of temperature sensing assemblies, is fixedly connected to the outer surface of the liquid inlet pipe (2) and the outer surface of the liquid outlet pipe (3), and comprises an air bag (24); The adjusting assembly is provided with a plurality of adjusting assemblies, is arranged at one end of the plurality of temperature sensing assemblies, and comprises an adjusting rod (7); The heating assembly is arranged in the interior of the liquid inlet pipe (2) and the liquid outlet pipe (3); The heat preservation plate (8) is provided with a plurality of heat preservation plates (8) and is arranged at one end of the adjusting rod (7); The air bag (24) is telescopic, the adjusting rod (7) and the heat preservation plate (8) can be switched between a first state and a second state, in the first state, the adjusting rod (7) pushes the heat preservation plate (8) away from the outer surface of the liquid inlet pipe (2) and the liquid outlet pipe (3), and in the second state, the adjusting rod (7) drives the heat preservation plate (8) to be close to the outer surface of the liquid inlet pipe (2) and the liquid outlet pipe (3).

2. The anti-icing assembly of claim 1, wherein: The temperature sensing assembly further comprises: The connecting barrel (6) is fixed to the outer surface of the liquid inlet pipe (2) and the liquid outlet pipe (3); The push block (25) is arranged on the inner surface of the connecting barrel (6), and one end of the push block (25) is fixed in the air bag (24); The push rod (26) is arranged on one side of the push block (25), and the other end of the push rod (26) is rotatably connected to one end of the adjusting rod (7), The two adjusting rods (7) are a group, and the opposite surfaces of the adjusting rod (7) in each group are rotatably connected through the rotating shaft.

3. The freeze protection assembly of claim 1, wherein: The adjusting assembly further comprises: The limiting slide rail (17) is fixed to the inner side surface of the heat preservation plate (8); The slide block (18) is arranged in a group of two, and one end of the slide block (18) is rotatably connected to one end of the adjusting rod (7); The two slide blocks (18) are a group, and the inner walls of the slide blocks (18) in the groups are slidably sleeved on the outer surfaces of the limiting slide rails (17).

4. The anti-icing assembly of claim 3, wherein: The adjusting assembly further comprises: The side plate (5) is fixedly connected to the outer surface of the liquid inlet pipe (2) and the liquid outlet pipe (3); The limiting slide groove (19) is arranged on the opposite surfaces of the four side plates (5) and is equidistantly distributed; The limiting block (27) is arranged on the inner surface of the limiting slide groove (19); The two limiting blocks (27) are a group, and the opposite surfaces of the limiting blocks (27) in the groups are fixedly connected to the two ends of the heat preservation plate (8).

5. The anti-icing assembly of claim 4, wherein: The heating assembly comprises: The heating wire (4) is fixedly connected to the interior of the liquid inlet pipe (2) and the liquid outlet pipe (3); The pressure switch one (20) is fixedly connected to the outer surface of the liquid inlet pipe (2) and the liquid outlet pipe (3); The two pressure switch ones (20) and the two heating wires (4) are electrically connected.

6. The anti-icing assembly of claim 4, wherein: The outer surface of the two side plates (5) is fixedly connected with the bracket (21), one side of the two brackets (21) is fixedly connected with the pressure switch two (22), and the fan one (9) is arranged between the liquid inlet pipe (2) and the liquid outlet pipe (3); The two pressure switch twos (22) are electrically connected with the fan one (9).

7. A cooling tower characterized by: The antifreezing assembly comprises a shell (1), an upper surface of the shell (1) is provided with a fan (10) in communication, a lower portion of the fan (10) is provided with a spraying assembly (13), and the spraying assembly (13) is located above a heat exchanger body (15).

8. The cooling tower according to claim 7, wherein: An inner portion of the shell (1) is embedded with a water storage tank (16), and the water storage tank (16) is located below the heat exchanger body (15).

9. The cooling tower according to claim 8, wherein: A rear surface of the shell (1) is fixedly connected with a back plate (11).

10. The cooling tower according to claim 9, wherein: An outer surface of the shell (1) is provided with two protective windows (12), and the two protective windows (12) are oppositely arranged. An outer surface of the shell (1) is provided with two protective windows (12), and the two protective windows (12) are oppositely arranged.

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