An internally insulated freeze-proof cooling tower

Abstract

The utility model relates to cooling tower technical field discloses an inside heat -preserving freeze -proof cooling tower, including tower, heat exchanger, closed mechanism and heat -preserving mechanism, tower side wall is equipped with heat -preserving wall, is equipped with mounting bracket in the tower, and the ventilation opening has between mounting bracket, the tower has heat exchange cavity in the upper of mounting bracket, the tower has the air inlet cavity below mounting bracket, the upper end of heat exchange cavity is equipped with air outlet, and closed mechanism is installed on the air outlet and carries out the closure to the air outlet, is equipped with the air inlet on the lateral wall of air inlet cavity, heat exchanger sets up on mounting bracket, heat -preserving mechanism installs on heat exchanger and carries out heat preservation to heat exchanger. Compared with prior art, the utility model can effectively heat preservation to heat exchanger, avoid the freezing damage phenomenon of heat exchanger.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, specifically to a cooling tower with internal insulation and antifreeze properties. Background Technology

[0002] In industrial cold-end systems, the operational efficiency and safety of cooling towers are significantly affected by ambient temperature. Cooling towers are typically designed for high-temperature, high-heat-load conditions in summer. However, their operating environment becomes extremely harsh in winter: low ambient temperatures and many production processes (such as intermittent production and low-load operation at night) cause cooling towers to frequently face no or extremely low heat load conditions. Under these conditions, the circulating water temperature is close to the ambient wet-bulb temperature; if cold air is introduced, the evaporative cooling effect will cause the water temperature to drop rapidly to the freezing point.

[0003] To mitigate this risk, current technologies commonly employ a "drainage standby" mode. This means that whenever the system is paused or operating at low load, all the water in the cooling unit is drained into a wastewater tank. While this method avoids freezing damage, it results in a double waste of energy and resources: draining wastes the heat energy contained in the water and the water itself, while refilling the system upon restarting requires electricity and the addition of new treated water, significantly increasing operating costs and failing to meet the requirements of modern green and energy-efficient industry.

[0004] In view of this, the applicant conducted in-depth research on the above-mentioned issues, which led to this case. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a cooling tower with internal insulation and antifreeze, which can effectively insulate the heat exchanger and prevent the heat exchanger from freezing and being damaged.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A cooling tower with internal insulation and antifreeze includes a tower frame, a heat exchanger, a sealing mechanism, and an insulation mechanism. The tower frame has an insulated wall on its side wall, an installation frame inside the tower frame, ventilation openings between the installation frames, a heat exchange chamber above the installation frames, an air inlet chamber below the installation frames, an air outlet at the upper end of the heat exchange chamber, an installation mechanism on the air outlet to seal it, an air inlet on the side wall of the air inlet chamber, a heat exchanger mounted on the installation frames, and an insulation mechanism mounted on the heat exchanger to insulate it.

[0007] Furthermore, the sealing mechanism includes a guide rail, a slide rod, a sealing blanket, guide wheels, and pull ropes. The guide rail is symmetrically arranged at the lower end of the air outlet. Both ends of the slide rod are slidably connected to the guide rail. One end of the sealing blanket is fixedly connected to the guide rail, and the other end is fixedly connected to the slide rod. The front and rear ends of the guide rail are provided with rotating shafts, and the guide wheels are rotatably connected to the rotating shafts. The slide rod is provided with two pull ropes, which are respectively wound around the two guide wheels at the front and rear ends.

[0008] Furthermore, the insulation mechanism includes a tripod, an insulation blanket, a support plate, fixed pulleys, a cable, and a handwheel. The tripod is mounted on a mounting frame, the heat exchanger is mounted on the side of the tripod, the support plate is connected to the upper end of the tripod, and two support plates are respectively connected to the front and rear ends of the tripod. Each support plate has two rotatably connected fixed pulleys at its upper end, and the handwheel is rotatably connected to the lower end of the tripod. The insulation blanket is placed on the heat exchanger, and the two upper corners of the insulation blanket are tied to one end of the cable. The other end of the cable passes around the fixed pulleys and is connected to the handwheel.

[0009] Furthermore, the tripod includes a base plate, an inclined plate, and side plates. The inclined plate is connected to the base plate, and the two inclined plates are symmetrically arranged on the left and right. The upper ends of the inclined plates are connected together. The heat exchanger is connected to the inclined plate. The two side plates are mounted on the front and rear ends of the base plate, and the handwheel is rotatably connected to the side plates.

[0010] Furthermore, an air duct is provided at the upper end of the air outlet, and a fan is provided inside the air duct.

[0011] This invention provides a cooling tower with internal insulation and freeze protection. It offers the following advantages: By sealing the air outlet through a sealing mechanism, the air velocity inside the cooling tower is reduced, minimizing heat exchange between the heat exchanger and the atmosphere. Simultaneously, the insulation mechanism covers the heat exchanger with insulation material, providing a certain degree of insulation. This ensures safe operation of the heat exchanger even in low-temperature and low-load conditions during winter, preventing freezing damage. Attached Figure Description

[0012] Figure 1 This is a side view of the cross-sectional structure of this utility model.

[0013] Figure 2 This is a top view of the internal structure of this utility model.

[0014] Figure 3 This is a front view of the cross-sectional structure of this utility model.

[0015] Figure 4 This is a top view of the external structure of this utility model.

[0016] Figure 5 Figure 3 A magnified view of a portion of region A in the middle.

[0017] Figure 6 This is a top view of the closed mechanism.

[0018] Figure 7 This is a side view of the structural cross-section of the closed mechanism.

[0019] Among them, the tower 1, mounting frame 11, ventilation opening 12, heat exchange chamber 13, air inlet chamber 14, air outlet 15, air inlet 16, heat exchanger 2, sealing mechanism 3, guide rail 31, slide rod 32, sealing blanket 33, guide wheel 34, pull rope 35, rotating shaft 36, insulation mechanism 4, tripod 41, base plate 411, inclined plate 412, side plate 413, insulation blanket 42, support plate 43, fixed pulley 44, cable 45, handwheel 46, air duct 5, fan 51, and insulation wall 6. Detailed Implementation

[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Please see the appendix Figure 1 -Appendix Figure 7 This utility model provides a cooling tower with internal insulation and antifreeze, including a tower frame 1, a heat exchanger 2, a sealing mechanism 3, and an insulation mechanism 4. The tower frame 1 has an insulation wall 6 on its side wall, and an installation frame 11 inside the tower frame 1. Ventilation openings 12 are provided between the installation frames 11. A heat exchange chamber 13 is located above the installation frames 11, and an air inlet chamber 14 is located below the installation frames 11. An air outlet 15 is located at the upper end of the heat exchange chamber 13. The sealing mechanism 3 is installed on the air outlet 15 and seals it. An air inlet 16 is located on the side wall of the air inlet chamber 14. An insulated electric roller shutter door can be installed at the air inlet 16 to seal the air inlet 16, creating a relatively sealed space inside the tower frame 1 and reducing the contact between the heat exchanger 2 and the atmosphere. The heat exchanger 2 is mounted on the installation frame 11, and the insulation mechanism 4 is installed on the heat exchanger 2 and insulates it. External air enters the air inlet cavity 14 through the air inlet 16, and then enters the heat exchanger 2 through the vent 12. After heat exchange with the heat exchanger 2 in the heat exchange cavity 13, the air is discharged from the air outlet 15. A wind duct 5 is provided at the upper end of the air outlet 15, and a fan 51 is provided inside the wind duct 5. The fan 51 can accelerate the air flow rate inside the tower 1, thereby improving the heat dissipation efficiency.

[0022] In this embodiment, the sealing mechanism 3 includes a guide rail 31, a sliding rod 32, a sealing blanket 33, guide wheels 34, and pull ropes 35. The guide rail 31 is symmetrically arranged at the lower end of the air outlet 15. Both ends of the sliding rod 32 are slidably connected to the guide rail 31. One end of the sealing blanket 33 is fixedly connected to the guide rail 31, and the other end is fixedly connected to the sliding rod 32. The front and rear ends of the guide rail 31 are provided with rotating shafts 36, and the guide wheels 34 are rotatably connected to the rotating shafts 36. The sliding rod 32 is provided with two pull ropes 35, which are respectively wound around the two guide wheels 34 at the front and rear ends. With the above structure, in winter when the temperature is low and the system has intermittent no heat load or low heat load, the sliding rod 32 can be dragged by manually pulling the pull ropes 35 to completely block the air outlet 15. In summer when the temperature is high, the sliding rod 32 can be dragged by manually pulling the pull ropes 35 to move the sealing blanket 33 to one side and stack it up, thereby completely opening the air outlet 15.

[0023] In this embodiment, the heat preservation mechanism 4 includes a tripod 41, a heat preservation blanket 42, a support plate 43, a fixed pulley 44, a cable 45, and a handwheel 46. The tripod 41 is mounted on the mounting frame 11. The tripod 41 includes a base plate 411, an inclined plate 412, and a side plate 413. The inclined plate 412 is connected to the base plate 411. The two inclined plates 412 are symmetrically arranged on the left and right sides, and their upper ends are connected together. The heat exchanger 2 is connected to the inclined plate 412. The two side plates are mounted on the front and rear ends of the base plate 411. The handwheel 46 is rotatably connected to the side plate 413. Support plates 43 are connected to the upper end of tripod 41, and two support plates 43 are respectively connected to the front and rear ends of tripod 41. Each support plate 43 has two rotatably connected fixed pulleys 44 at its upper end. Insulation blanket 42 is placed on the heat exchanger 2. The two upper corners of the insulation blanket 42 are tied to one end of a cable 45, and the other end of the cable 45 passes around the fixed pulleys 44 and connects to a handwheel 46. With this structure, by rotating the handwheels 46 at both ends, the insulation blanket 42 can be lifted by the cable 45, allowing it to naturally adhere to one side of the heat exchanger 2 under gravity, thus sealing the vent 12. In summer, the insulation blanket 42 can be removed and stacked aside, taking up little space and reducing the workload and intensity of the operators. The aforementioned handwheel 46 is existing technology. After the insulation blanket 42 is lifted and fixed, it has an anti-rotation effect, ensuring that the insulation blanket 42 can stably cover the heat exchanger 2. Its specific structure will not be described in detail here.

[0024] The working principle of this invention is as follows: In winter, when the temperature drops and the system experiences intermittent periods of no or low heat load, a sealing mechanism is used to seal the air outlet 15, reducing the airflow velocity inside the tower. Simultaneously, the insulation mechanism covers the heat exchanger with insulation blankets 42 times, achieving a heat preservation effect.

[0025] Compared with existing technologies, the advantages of this invention are that by sealing the air outlet 15 through the sealing mechanism 3, the air velocity inside the cooling tower is reduced, thus decreasing the heat exchange between the heat exchanger 2 and the atmosphere. Simultaneously, the insulation mechanism 4 covers the heat exchanger 2 with an insulation blanket 42, providing a certain degree of insulation. This ensures the safe operation of the heat exchanger 2 even in low-temperature and low-load operating environments during winter, preventing freezing damage.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling tower with internal insulation and freeze protection, characterized in that, It includes a tower, a heat exchanger, a sealing mechanism, and an insulation mechanism. The tower has an insulated wall on its side wall, an installation frame inside the tower, ventilation openings between the installation frames, a heat exchange chamber above the installation frames, an air inlet chamber below the installation frames, an air outlet at the upper end of the heat exchange chamber, an installation mechanism on the air outlet to seal it, an air inlet on the side wall of the air inlet chamber, a heat exchanger on the installation frame, and an insulation mechanism on the heat exchanger to insulate it.

2. The cooling tower with internal insulation and antifreeze as described in claim 1, characterized in that, The sealing mechanism includes a guide rail, a slide rod, a sealing blanket, guide wheels, and pull ropes. The guide rail is symmetrically arranged at the lower end of the air outlet. The two ends of the slide rod are slidably connected to the guide rail. One end of the sealing blanket is fixedly connected to the guide rail and the other end is fixedly connected to the slide rod. The front and rear ends of the guide rail are provided with rotating shafts, and the guide wheels are rotatably connected to the rotating shafts. The slide rod is provided with two pull ropes, which are respectively wound around the two guide wheels at the front and rear ends.

3. A cooling tower with internal insulation and antifreeze as described in claim 1, characterized in that, The insulation mechanism includes a tripod, an insulation blanket, a support plate, fixed pulleys, a cable, and a handwheel. The tripod is mounted on a mounting frame, and the heat exchanger is mounted on the side of the tripod. The support plate is connected to the upper end of the tripod, and two support plates are respectively connected to the front and rear ends of the tripod. Each support plate has two rotatably connected fixed pulleys at its upper end. The handwheel is rotatably connected to the lower end of the tripod. The insulation blanket is placed on the heat exchanger, and the two upper corners of the insulation blanket are tied to one end of the cable. The other end of the cable passes around the fixed pulleys and is connected to the handwheel.

4. A cooling tower with internal insulation and antifreeze as described in claim 3, characterized in that, The tripod includes a base plate, an inclined plate, and side plates. The inclined plate is connected to the base plate. The two inclined plates are symmetrically arranged on the left and right sides, and their upper ends are connected together. The heat exchanger is connected to the inclined plate. The two side plates are mounted on the front and rear ends of the base plate, and the handwheel is rotatably connected to the side plates.

5. A cooling tower with internal insulation and antifreeze as described in claim 1, characterized in that, An air duct is provided at the upper end of the air outlet, and a fan is provided inside the air duct.

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