Compact-structure adiabatic cooler system suitable for dry and hot area

Abstract

The invention discloses a compact-structure adiabatic cooler system suitable for a dry and hot area, which comprises a rack, an air regulating mechanism, a precooler, a radiator, a fan and a spraying circulating mechanism, the precooler and the radiator are symmetrically arranged in the rack front and back, the precooler is correspondingly arranged on the outer side of the radiator, the fan is arranged on the top of the rack, and the spraying circulating mechanism is arranged on the top of the rack. The rack is located above the precooler and the radiator, the air adjusting mechanisms are arranged on the front side and the rear side of the rack, and the spraying circulating mechanism is arranged in the rack and used for spraying the precooler. The air adjusting mechanism and the spraying circulation mechanism are arranged and linked, the spraying circulation mechanism controls the temperature and humidity in the cooler by controlling the spraying time period and flow and combining the air adjusting mechanism to adjust the opening and closing angle, the heat exchange efficiency is improved, meanwhile, the influence of wind and sand on the heat dissipation efficiency is reduced, and the cooling effect is improved. And the maintenance intensity is also reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of coolers, and particularly to a structurally compact adiabatic cooler system applicable to dry and hot regions. Background Art

[0002] Due to the abundance of solar heat and wind resources in arid regions, more and more photovoltaic or wind power generation facilities have been installed in arid regions. Photovoltaic and wind power stations require adiabatic coolers to cool the converter stations. Since arid regions have specific problems such as water scarcity and strong winds and sand, it is necessary to minimize the failure rate and save water while meeting the heat dissipation requirements. In addition, the converter stations of thermal power plants also face harsh external environments. With the increasing popularity of environmental protection concepts, it is also necessary to save resources as much as possible during daily operation. The adiabatic cooler disclosed in the existing CN117280163A has disadvantages such as low utilization efficiency, water resource waste, and non-recyclability in its water spraying system. When applied to dry and hot regions, it has defects such as high daily operation costs and ineffective utilization of resources. Moreover, the traditional adiabatic coolers are relatively large in size, resulting in a large space occupation, which not only makes installation difficult but also causes inconvenience in maintenance. The present invention provides a structurally compact adiabatic cooler system applicable to dry and hot regions to solve the above problems. Summary of the Invention

[0003] The present invention provides a structurally compact adiabatic cooler system applicable to dry and hot regions, which can adapt to arid regions, reduce water resource waste, and extend the maintenance cycle by setting up an air regulating mechanism and a spraying and circulating mechanism.

[0004] The technical solutions adopted by the present invention to solve the above technical problems are as follows: A structurally compact adiabatic cooler system applicable to dry and hot regions includes a frame, an air regulating mechanism, a pre-cooler, a radiator, a fan, a spraying and circulating mechanism, and a control device. The pre-cooler and the radiator are symmetrically arranged front and back in the frame. The pre-cooler is correspondingly arranged outside the radiator. The fan is arranged on the top of the frame, above the pre-cooler and the radiator. The air regulating mechanism is arranged on the front and back sides of the frame. The spraying and circulating mechanism is arranged in the frame for spraying the pre-cooler. Air enters from the front and back sides of the frame, passes through the air regulating mechanism, the pre-cooler, and the radiator in sequence, and is discharged from the fan above the frame. The control device is connected to the air regulating mechanism, the pre-cooler, the radiator, the fan, and the spraying and circulating mechanism, and is provided with dry and wet operation modes, power-saving mode, water-saving mode, self-cleaning mode, and anti-freezing mode.

[0005] Further, the air regulating mechanism includes air regulating louvers, and the air regulating louvers include a window frame, opening and closing blades, a linkage rod, and an adjusting mechanism. The opening and closing blades are movably arranged in the window frame and are movably connected to the linkage rod. The adjusting mechanism is arranged in the window frame and is connected to the linkage rod, and controls the opening and closing angle of the opening and closing blades by driving the linkage rod to move.

[0006] Further, the adjusting mechanism includes a handle, a pulling rod, and an angle fixing plate. The inner end of the handle is movably arranged in the window frame as the rotation center. The upper end of the pulling rod is movably connected to the linkage rod, and the lower end is movably connected to the handle. The angle fixing plate is fixedly arranged in the window frame, and the middle part of the handle is connected to the angle fixing plate.

[0007] Further, the angle fixing plate is provided with angle positioning holes at intervals, and the handle is connected in the angle positioning holes.

[0008] Further, the spray circulation mechanism includes a circulation water tank, a water supply pipeline, a water return pipeline, a spray head, and a water collecting tank. The spray head is arranged above the precooler and is communicated with the circulation water tank through the water supply pipeline. The water collecting tank is arranged at the bottom of the precooler and is communicated with the circulation water tank through the water return pipeline.

[0009] Further, the circulation water tank includes a water tank and a water pump. A filter water tank is arranged in the water tank. The water pump is located in the filter water tank and is connected to the water supply pipeline.

[0010] Further, the water collecting tank is inclined, and the water inlet of the water return pipeline is connected to the lower end side of the water collecting tank.

[0011] Further, a water replenishing pipe, a drain pipe, and a sewage discharge pipe are provided on the water tank. The water replenishing pipe is arranged at the upper part of the water tank. The sewage discharge pipe is arranged at the bottom of the water tank. The drain pipe is arranged on the water supply pipeline.

[0012] Further, the air regulating mechanism further includes a sand prevention net, and the sand prevention net is arranged outside the air regulating louvers.

[0013] Further, both the precooler and the radiator are provided with upper and lower two groups, and the lower radiator is arranged in a V shape.

[0014] The beneficial effects of the present invention are as follows: The air regulating mechanism and the spray circulation mechanism are set and linked. The spray circulation mechanism controls the internal temperature and humidity of the cooler by controlling the spray time period and flow rate and combining with the adjustment of the opening and closing angle of the air regulating mechanism, improves the heat exchange efficiency, reduces the influence of sand and dust on the heat dissipation efficiency, and also reduces the maintenance intensity; The air regulating mechanism can control the air intake volume by adjusting the opening and closing angle, which not only has the effects of preventing wind and sand and reducing the accumulation of sand and soil, but also can control the humidity in the cooler by controlling the air volume; The spray circulation mechanism cooperates with the air volume control to adjust the temperature and humidity inside the cooler, thereby ensuring the heat exchange efficiency of the cooler. At the same time, it has the function of cleaning, avoiding the problem of heat dissipation failure caused by the accumulation of wind and sand. Moreover, the spray water can be recycled, effectively reducing the waste of water resources; Multiple modes are set to apply different working conditions, which not only ensures the smooth operation of the equipment, but also effectively reduces the waste of resources. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side view schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the opened state of the sand protection net of the present invention; Figure 4 It is a schematic diagram of the closed state of the air regulating louvers of the present invention; Figure 5 It is a schematic diagram of the opened state of the air regulating louvers of the present invention; Figure 6 It is a schematic diagram of the overall structure of the spray circulation mechanism of the present invention; Figure 7 It is a schematic diagram of the structure of the circulation water tank of the present invention.

[0016] Reference Signs: 1, air regulating mechanism; 11, air regulating louvers; 111, opening and closing blades; 112, linkage rod; 113, handle; 114, pulling rod; 115, angle fixing plate; 12, sand protection net; 2, pre-cooler; 3, radiator; 4, fan; 5, spray circulation mechanism; 51, circulation water tank; 511, water tank; 512, water pump; 52, water supply pipeline; 53, water return pipeline; 54, water collecting tank. Detailed Embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0019] As Figure 1 , 2 shown, a structurally compact adiabatic cooler system applicable to dry and hot regions includes a frame, an air regulating mechanism 1, a pre-cooler 2, a radiator 3, a fan 4, a spray circulation mechanism 5 and a control device. The pre-cooler 2 and the radiator 3 are symmetrically arranged front and back in the frame. The pre-cooler 2 is correspondingly arranged outside the radiator 3. The fan 4 is arranged at the top of the frame, above the pre-cooler 2 and the radiator 3. The air regulating mechanism 1 is arranged on both the front and back sides of the frame. The spray circulation mechanism 5 is arranged in the frame for spraying the pre-cooler 2. Air enters from both the front and back sides of the frame, passes through the pre-cooler 2 and the radiator 3 in sequence, and is discharged from the fan 4 above the frame.

[0020] The adiabatic cooler system of the present invention consists of a pre-cooler 2 and a radiator 3 to form a heat exchanger with an inner and outer layer. Both the pre-cooler 2 and the radiator 3 are symmetrically arranged. And a set is provided at the upper and lower parts of each layer of the heat exchanger. A heat dissipation system with air intake from both the front and back sides and exhaust from the upper part is formed by the fan 4 arranged above. And the radiator 3 at the lower side is arranged in a V shape to further improve the heat dissipation efficiency and effectively reduce the overall size. While ensuring the cooling efficiency, it has the advantage of being easy to transfer and install. At the same time, an air regulating mechanism 1 and a spray circulation mechanism 5 are set to deal with the problems of sand and water shortage in arid regions, effectively avoiding the influence of sand accumulation on the heat dissipation efficiency, and at the same time reducing the consumption of water resources and the defect of poor backwater.

[0021] The specific principle of the present invention is as follows: Air enters from both the front and back sides of the frame. First, it passes through the air regulating mechanism 1 to block sand and foreign objects and prevent them from entering the system. And the opening degree of the air regulating mechanism 1 is adjusted according to the external weather and temperature. After the air enters the system, it first undergoes heat exchange through the pre-cooler 2. And the spray circulation mechanism 5 arranged on the pre-cooler 2 sprays the pre-cooler 2, playing a role in cooling and humidifying, and at the same time cleaning the sand accumulated on the pre-cooler 2 to ensure the heat exchange efficiency between the pre-cooler 2 and the air. The air passing through the pre-cooler 2 undergoes heat exchange through the radiator 3 again. Then the hot air that has undergone two heat exchanges is extracted by the fan 4 located at the top of the frame.

[0022] The control device is connected to the air regulating mechanism 1, the pre-cooler 2, the radiator 3, the fan 4 and the spray circulation mechanism 5, and is provided with wet and dry operation modes, power-saving mode, water-saving mode, self-cleaning mode and anti-freezing mode. By setting multiple modes, the efficient operation of the equipment is realized, and further the resource utilization rate is improved and waste is reduced.

[0023] The wet and dry operation mode includes a wet operating mode and a dry operating mode; Wet operating condition: When it is detected that the outdoor ambient dry bulb temperature ≥ 20°C, the spray circulation mechanism 5 is started and enters the wet condition pre-cooling mode; Dry operating condition: When it is detected that the outdoor ambient dry bulb temperature < 20°C, the spray circulation mechanism 5 is started and closed, and enters the dry operating mode; The specific temperature of the wet and dry operation mode is adjusted in real time according to the location, season and operation plan; Power-saving mode: First start the spray circulation mechanism 5, then gradually adjust the frequency of the fan 4 to control the outlet water temperature of the cooling water until the outlet water temperature of the cooling water reaches the standard, and then control the fan 4 to be in the current state and enter the power-saving operation mode; The power-saving mode can be set manually or the automatic start and stop can be set; Water-saving mode: First turn on the fan 4, after the frequency of the fan 4 is adjusted to the maximum, then start the spray circulation mechanism 5 to control the outlet water temperature of the cooling water until the outlet water temperature of the cooling water reaches the standard, and then control the spray circulation mechanism 5 to be in the current state and enter the water-saving operation mode; The water-saving mode can be set manually or the automatic start and stop can be set; Self-cleaning mode: The spray circulation mechanism 5 is closed, the cooling water circulation stops, the fan 4 rotates in reverse to blow the pre-cooler 2 and the air regulating mechanism 1 in the reverse direction to achieve automatic cleaning; It can be started and stopped manually or the automatic start and stop can be set, and the operation time can be adjusted; Anti-freezing mode: When it is detected that the ambient temperature < 5°C, enter the anti-freezing mode, and adopt three-level anti-freezing protection, that is, the anti-freezing control is carried out by reducing the frequency of the fan 4, closing the air regulating mechanism 1 and draining the water through the spray circulation mechanism 5 to ensure that the finned tubes are not frozen.

[0024] Such as Figure 1 、 3, as shown in Figures 4 and 5, further, the air regulating mechanism 1 includes air regulating louvers 11. The air regulating louvers 11 include a window frame, opening and closing blades 111, a linkage rod 112, and an adjusting mechanism. The opening and closing blades 111 are movably arranged in the window frame and are movably connected to the linkage rod 112. The adjusting mechanism is arranged in the window frame and is connected to the linkage rod 112 to control the opening and closing angle of the opening and closing blades 111 by driving the movement of the linkage rod 112. The adjusting mechanism includes a handle 113, a pulling rod 114, and an angle fixing plate 115. The inner end of the handle 113 is movably arranged in the window frame as the rotation center. The upper end of the pulling rod 114 is movably connected to the linkage rod 112, and the lower end is movably connected to the handle 113. The angle fixing plate 115 is fixedly arranged in the window frame, and the middle part of the handle 113 is connected to the angle fixing plate 115.

[0025] As Figure 4 , 5 shown in Figures, the principle of air regulation by the air regulating mechanism 1 is as follows: There is a movable arm behind the opening and closing blades 111. The inner side of the movable arm is connected to the window frame by a pin shaft and rotates around this as the center. The outer side of the movable arm is connected to the linkage rod 112 by a pin shaft. The linkage rod 112 is connected to the adjusting mechanism. When the adjusting mechanism operates, it drives the movement of the linkage rod 112, and then drives the opening and closing blades 111 to open and close through the linkage rod 112. The inner end of the handle 113 of the adjusting mechanism is movably arranged in the window frame and serves as the rotation center. The upper end of the pulling rod 114 is connected to the linkage rod 112 by a pin shaft, and the lower end is connected to the middle part of the handle 113 by a pin shaft. When the operator pulls down the handle 113, the handle 113 rotates around the pin shaft at its inner end, thereby driving the pulling rod 114 to move downward. When the pulling rod 114 moves downward, it drives the linkage rod 112 to move downward, and the movement of the linkage rod 112 causes the opening and closing blades 111 to open around the pin shaft on the inner side of the movable arm. As the pulling angle of the handle is different, the opening degree of the opening and closing blades 111 is also different. The function of the angle fixing plate 115 is to fix the handle 113 in the angle positioning holes at different positions on the angle fixing plate 115, so that the opening and closing blades 111 maintain different opening degrees.

[0026] Further, the angle fixing plate 115 is provided with angle positioning holes at intervals, and the handle 113 is connected in the angle positioning holes to control the opening degree of the opening and closing blades 111.

[0027] Further, the air regulating mechanism 1 further includes a sand protection net 12, and the sand protection net 12 is arranged outside the air regulating louvers 11.

[0028] Further, the air regulating mechanism 1 is integrally detachably installed on the frame, which is convenient for overall replacement, maintenance, and cleaning.

[0029] AsFigure 3 As shown, further, the sand prevention nets 12 are arranged in pairs on the outer sides of the air regulating louvers 11 and can be opened towards each other. The outer sides of the sand prevention nets 12 are provided with opening and closing hinges, and the inner sides are provided with latches. When opening, first open the latches, and then open them to both sides. The maximum opening and closing angle is 90°.

[0030] As Figure 6 As shown, further, the spray circulation mechanism 5 includes a circulation water tank 51, a water supply pipeline 52, a water return pipeline 53, spray heads and a water collecting tank 54. The spray heads are arranged above the pre-cooler 2 to spray the pre-cooler 2 to maintain the humidity inside the system and at the same time wash the sand on the surface of the pre-cooler 2. The spray heads are communicated with the circulation water tank 51 through the water supply pipeline 52, and the water supply pipeline 52 sends water from the circulation water tank 51 to the spray heads. The water collecting tank 54 is arranged at the bottom of the pre-cooler 2 for receiving water. The water sprayed onto the pre-cooler 2 converges into the water collecting tank 54 at its bottom. The water collecting tank 54 is communicated with the circulation water tank 51 through the water return pipeline 53 to return the water to the circulation water tank 51 for filtration and circulation.

[0031] Further, the circulation water tank 51 is arranged in the middle at the bottom of the frame to supply water to the pre-coolers 2 on both sides.

[0032] As Figure 7 As shown, further, the circulation water tank 51 includes a water tank 511 and a water pump 512. A filter water tank is arranged in the water tank 511 to filter the water in the water tank to prevent sediment from entering the water supply pipeline 52. The water pump 512 is located in the filter water tank and is connected to the water supply pipeline 52.

[0033] Further, the filter water tank is arranged in a suspended manner.

[0034] Further, the water collecting tank 54 is arranged in an inclined manner to play a role in collecting water flow. At the same time, it can gradually deposit the sediment in the water at the bottom of the water collecting tank 54 for unified cleaning, and at the same time prevent sediment from entering the water return pipeline 53. The water inlet of the water return pipeline 53 is connected to the low-end side of the water collecting tank 54 to facilitate the unified collection, recovery and circulation of the water flow.

[0035] Further, the water tank 511 is provided with a water replenishing pipe, a drain pipe and a sewage discharge pipe. The water replenishing pipe is arranged at the upper part of the water tank 511 to replenish water to the water tank 511 from the outside. The sewage discharge pipe is arranged at the bottom of the water tank 511 to discharge the sludge in the water tank 511. The drain pipe is arranged on the water supply pipeline 52 to discharge the water in the water tank 511.

[0036] Furthermore, the spray circulation mechanism 5 adopts a modular structure. The circulation water tank 51 is detachably installed on the frame. The water supply pipeline 52 and the water return pipeline 53 are both assembled in multiple sections. The water collecting tank 54 is detachably installed on the pre-cooler 2 and is detachably connected to the water return pipeline 53.

[0037] Furthermore, two sets of upper and lower pre-coolers 2 and radiators 3 are provided. The lower radiator 3 is arranged in a V shape. Moreover, the pre-cooler 2 and the radiator 3 adopt modular design and can be flexibly combined in multiple modules according to needs, effectively reducing the size of the structure, making the overall structure more compact, more convenient for installation and layout, and the overall size is smaller and more convenient for maintenance.

[0038] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A structurally compact adiabatic cooler system applicable to dry and hot regions, characterized in that: It includes a frame, an air regulating mechanism (1), a pre-cooler (2), a radiator (3), a fan (4), a spray circulation mechanism (5) and a control device. The pre-cooler (2) and the radiator (3) are symmetrically arranged front and back in the frame. The pre-cooler (2) is correspondingly arranged outside the radiator (3). The fan (4) is arranged at the top of the frame, above the pre-cooler (2) and the radiator (3). The air regulating mechanism (1) is arranged on both the front and back sides of the frame. The spray circulation mechanism (5) is arranged in the frame for spraying the pre-cooler (2). Air enters from both the front and back sides of the frame, passes through the air regulating mechanism (1), the pre-cooler (2) and the radiator (3) in sequence, and is discharged from the fan (4) above the frame. The control device is connected to the air regulating mechanism (1), the pre-cooler (2), the radiator (3), the fan (4) and the spray circulation mechanism (5), and is provided with dry and wet operation modes, power-saving mode, water-saving mode, self-cleaning mode and anti-freezing mode.

2. The structure-compact adiabatic cooler system applicable to hot and dry regions according to claim 1, characterized in that: The air regulating mechanism (1) includes air regulating louvers (11). The air regulating louvers (11) include a window frame, opening and closing blades (111), a linkage rod (112) and an adjusting mechanism. The opening and closing blades (111) are movably arranged in the window frame and are movably connected to the linkage rod (112). The adjusting mechanism is arranged in the window frame and is connected to the linkage rod (112) to control the opening and closing angle of the opening and closing blades (111) by driving the linkage rod (112) to move.

3. The structure-compact adiabatic cooler system applicable to dry heat regions according to claim 2, wherein: The adjusting mechanism includes a handle (113), a pulling rod (114) and an angle fixing plate (115). The inner end of the handle (113) is movably arranged in the window frame as the rotation center. The upper end of the pulling rod (114) is movably connected to the linkage rod (112), and the lower end is movably connected to the handle (113). The angle fixing plate (115) is fixedly arranged in the window frame, and the middle part of the handle (113) is connected to the angle fixing plate (115).

4. A structurally compact adiabatic cooler system applicable to hot and dry regions according to claim 3, characterized in that: The angle fixing plate (115) is provided with angle positioning holes at intervals, and the handle (113) is connected in the angle positioning holes.

5. A structurally compact adiabatic cooler system applicable to hot and dry regions according to claim 1, characterized in that: The spray circulation mechanism (5) includes a circulation water tank (51), a water supply pipeline (52), a water return pipeline (53), a spray head and a water collecting tank (54). The spray head is arranged above the pre-cooler (2) and is communicated with the circulation water tank (51) through the water supply pipeline (52). The water collecting tank (54) is arranged at the bottom of the pre-cooler (2) and is communicated with the circulation water tank (51) through the water return pipeline (53).

6. The structure compact adiabatic cooler system applicable to dry heat regions according to claim 5, wherein: The circulation water tank (51) includes a water tank (511) and a water pump (512). A filter water tank is arranged in the water tank (511). The water pump (512) is located in the filter water tank and is connected to the water supply pipeline (52).

7. A structurally compact adiabatic cooler system applicable to dry heat regions according to claim 5, characterized in that: The water collecting tank (54) is inclined, and the water inlet of the water return pipeline (53) is connected to the lower end side of the water collecting tank (54).

8. The structure-compact adiabatic cooler system applicable to dry heat regions according to claim 6, characterized in that: The water tank (511) is provided with a water replenishing pipe, a drain pipe and a sewage discharge pipe. The water replenishing pipe is arranged at the upper part of the water tank (511). The sewage discharge pipe is arranged at the bottom of the water tank (511). The drain pipe is arranged on the water supply pipeline (52).

9. The structure compact adiabatic cooler system applicable to dry heat regions according to claim 2, wherein: The air regulating mechanism (1) further includes a sand screen (12), and the sand screen (12) is arranged outside the air regulating louvers (11).

10. A structurally compact adiabatic cooler system applicable to dry and hot regions according to claim 1, characterized in that: Two sets of the pre-cooler (2) and the radiator (3) are both arranged vertically, and the radiator (3) of the lower set is arranged in a V shape.

Images