Composite indirect evaporative cooling system

Abstract

The present application relates to evaporative cooling equipment technical field, especially to a kind of composite indirect evaporative cooling system.The technical scheme comprising cooling main tower and symmetrically installed cooling secondary tower on the both sides of cooling main tower, also comprising: main ventilation window and secondary ventilation window installed on the side wall of cooling secondary tower.The present application is through the design of main ventilation opening, secondary ventilation opening, rotating air regulating blade, swing mechanism, transmission mechanism and filter mechanism, when wind power is small, only using fixed filter screen, can reduce the air resistance of equipment, thereby reducing energy consumption and prolonging the service life of filter.When wind power increases, by opening telescopic filter screen and fixed filter screen are used simultaneously, can ensure that dust particles in the air blown into main ventilation window and secondary ventilation window are fully filtered out.Furthermore, whether it is strong wind or light wind, equipment can maintain relatively stable filtering efficiency and operating state, reduce equipment failure or performance decline caused by environmental changes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of evaporative cooling equipment, and particularly relates to a composite indirect evaporative cooling system. BACKGROUND

[0002] Evaporative cooling equipment is a common cooling system that uses liquid (usually water) to absorb heat during the evaporation process to reduce the temperature of the surrounding environment. The composite indirect evaporative cooling equipment is an advanced air conditioning system that combines the characteristics of direct and indirect evaporative cooling to improve efficiency and reduce energy consumption. The traditional direct evaporative cooling system can reduce the temperature of the air while increasing the humidity of the air, which may not be ideal in some environments. The indirect evaporative cooling system cools the outside air through a wet cooling medium (such as a wet cooling tower) and then sends the cooled air into the room to achieve the purpose of cooling without increasing the humidity of the indoor air. The function of the air inlet window is to introduce outdoor air into the cooling tower. In the cooling tower, the air inlet window is located around the bottom of the tower body, and through these air inlet windows, the tower body can inhale fresh air from the outside and exchange heat with the water inside to achieve the cooling effect.

[0003] However, the amount of air intake through the air inlet window of the traditional cooling tower is fixed. When the cooling tower is installed outdoors in an environment with excessive wind speed, it will cause a large amount of dust to be blown into the air inlet window, causing dust particles to accumulate on the filler inside the cooling tower, resulting in blockage of the filler and reducing the cooling effect. At the same time, installing multiple layers of filter screens directly in the air inlet window for filtering dust particles, although the effect is excellent, but each layer of filter screen will increase the resistance of air passing through, eventually causing the air handling equipment to need a more powerful fan to push the air, increasing energy consumption. SUMMARY

[0004] The purpose of the present application is to solve the problem that the amount of air intake through the air inlet window of the traditional cooling tower is fixed, and when the cooling tower is installed outdoors in an environment with excessive wind speed, the filler is blocked by dust particles, and finally the cooling effect is reduced. At the same time, installing multiple layers of filter screens directly in the air inlet window for filtering dust particles, although the effect is excellent, but finally increases the energy consumption. A composite indirect evaporative cooling system is proposed.

[0005] The technical scheme of the present application: a composite indirect evaporative cooling system, comprising a cooling main tower and a cooling secondary tower symmetrically installed on both sides of the cooling main tower, further comprising: a main ventilation window and a secondary ventilation window installed on the side wall of the cooling secondary tower, a secondary ventilation opening is formed in the interior of the main ventilation window and the secondary ventilation window, a main ventilation opening is formed in the interior of the main ventilation window, a plurality of rotating air regulating leaves arranged in a linear manner and used for adjusting the interval size are arranged in the interior of the main ventilation opening and the secondary ventilation opening; a support plate fixedly connected to the top of the main ventilation window and the secondary ventilation window, an oscillation mechanism for driving the rotating air regulating leaves to rotate by the same amplitude by wind power is arranged on the upper surface of the support plate; a secondary installation groove and a main installation groove formed in the interior of the secondary ventilation opening and the main ventilation opening, a transmission mechanism for pulling the corresponding rotating air regulating leaves to rotate synchronously is arranged in the interior of the secondary installation groove and the main installation groove; an L-shaped support fixedly connected to the corresponding rotating air regulating leaves in the interior of the main ventilation opening and the secondary ventilation opening, a filtering mechanism linked with the transmission mechanism is arranged in the interior of the L-shaped support.

[0006] Optionally, the transmission mechanism comprises a driving pull rope, a plurality of V-shaped fixed short ropes corresponding to the rotating air regulating leaves are fixedly connected to the outer wall of an upper through hole formed in the top of the main ventilation window and the secondary ventilation window and used for allowing the driving pull rope to move through, and a connecting convex rod inserted into the main installation groove and the secondary installation groove is fixedly connected to one end of the rotating air regulating leaf close to the driving pull rope.

[0007] Optionally, the oscillation mechanism comprises a rotating sleeve arranged on the support plate, a spherical rotating seat movably connected to the interior of the rotating sleeve, the bottom of the spherical rotating seat is fixedly connected to one end of the driving pull rope, a connecting rod is fixedly connected to the top outer wall of the spherical rotating seat, a support shaft is fixedly connected to the top end of the connecting rod, and a plurality of wind guide vanes arranged in a circumferential array are fixedly connected to the outer wall of the support shaft.

[0008] Optionally, the oscillation mechanism further comprises a plurality of reset springs fixedly connected to the top of the rotating sleeve and arranged in a circumferential array, one end of each of the reset springs away from the rotating sleeve is fixedly connected to the outer wall of the connecting rod, a plurality of support rods corresponding to the reset springs are fixedly connected to the bottom of the rotating sleeve, and the bottom end of each of the support rods is fixedly connected to the support plate.

[0009] Optionally, the filtering mechanism comprises an automatic telescopic telescopic filter screen fixedly connected in the L-shaped support, an inclined guide surface is arranged on the L-shaped support, a pair of connecting pull ropes are fixedly connected to the top of the telescopic filter screen, and one end of each of the connecting pull ropes away from the telescopic filter screen is fixedly connected to the upper surface of the rotating air regulating leaf.

[0010] Optionally, one end of each of the rotating air regulating leaves away from the connecting convex rod is fixedly connected to a sealing resistance rod.

[0011] Optionally, a middle hole is provided inside the main vent, which corresponds to the upper hole above and below and is used for the pull rope to pass through.

[0012] Optionally, the main vents and the secondary vents are internally fixedly connected with supporting rotating rods for supporting a pair of rotating air regulating blades in the horizontal direction.

[0013] Optionally, the main ventilation window and the secondary ventilation window are both provided with fixed filter screens for filtering dust particles at the open ends close to the cooling secondary tower, and filter holes are provided on the fixed filter screen and the telescopic filter screen, and the filter aperture of the fixed filter screen is smaller than the filter aperture of the telescopic filter screen.

[0014] Optionally, the telescopic filter is made of polyester fiber.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] Through the design of the main vents, secondary vents, rotating air regulating blades, swinging mechanism, transmission mechanism, and filtering mechanism, the present invention can reduce the air resistance of the device when the wind is weak, using only the fixed filter, thereby reducing energy consumption and extending the service life of the filter. When the wind increases, by opening the telescopic filter and using it simultaneously with the fixed filter, it can ensure that dust particles in the air blown into the main ventilation windows and secondary ventilation windows are fully filtered out. Therefore, whether facing strong winds or light winds, the device can maintain a relatively stable filtering efficiency and operating status, reducing equipment failure or performance degradation caused by environmental changes.

[0017] Furthermore, the present invention utilizes the coordination of structures such as a reset spring, a wind-inducing vane and a swing mechanism, so that when the swing mechanism is not exposed to wind or the wind force is small, the swing mechanism can be restored to its original position through the elastic force of the reset spring, thereby ensuring that the equipment can continue to work normally after returning to its original position, and will not stop or cause work interruption due to interference from external forces, thereby improving work efficiency and continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of a composite indirect evaporative cooling system of the present invention is provided;

[0019] Figure 2 for Figure 1 Schematic diagram of the split structure of the central main ventilation window;

[0020] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0021] Figure 4 for Figure 2 Schematic diagram of the partially split structure;

[0022] Figure 5 For Figure 4 enlarged view at B;

[0023] Figure 6 For Figure 4 enlarged view at C.

[0024] Reference signs: 1, cooling main tower; 2, cooling secondary tower; 3, main ventilation window; 31, main ventilation opening; 32, support plate; 33, rotating sleeve; 34, support rod; 35, spherical rotating seat; 36, connecting rod; 37, support shaft; 38, air guide fin; 39, reset spring; 4, secondary ventilation window; 341, secondary ventilation opening; 342, main mounting groove; 343, rotating air regulating blade; 344, sealing resistance rod; 345, connecting pull rope; 346, L-shaped support; 347, telescopic filter screen; 348, support rotating rod; 349, connecting convex rod; 350, fixed short rope; 351, inclined guide surface; 352, upper perforation; 353, secondary mounting groove; 354, middle perforation; 344, fixed filter screen; 5, driving pull rope. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0026] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application.

[0027] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] It has to be noted that, as used in this specification and claims, the terms "comprises", "comprising", "includes", "including", or the like are to be taken in their broadest possible sense, meaning that the process, method, article, or apparatus that includes the elements as a non-exclusive list of elements, such that other elements can be added to the process, method, article, or apparatus without departing from the scope of the specification. In the description of the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0030] In the description of the present application, it has to be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connected", "connection" should be understood in a broad sense unless otherwise explicitly specified and limited, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Embodiments

[0031] As Figures 1-6As shown, the composite indirect evaporative cooling system provided by the present application comprises a cooling main tower 1 and cooling secondary towers 2 symmetrically installed on both sides of the cooling main tower 1, and further comprises: main ventilation windows 3 and secondary ventilation windows 4 installed on the side walls of the cooling secondary towers 2, the interiors of the main ventilation windows 3 and the secondary ventilation windows 4 are each provided with a secondary ventilation opening 341, the interior of the main ventilation window 3 is provided with a main ventilation opening 31, the interior of the main ventilation opening 31 is provided with a middle through hole 354 corresponding to the upper through hole 352 and for allowing the pull rope 5 to pass through, the interiors of the main ventilation opening 31 and the secondary ventilation opening 341 are fixedly connected with a support rotating rod 348 for supporting rotation of a pair of rotating air adjusting leaves 343 in the horizontal direction, the interiors of the main ventilation opening 31 and the secondary ventilation opening 341 are provided with a plurality of rotating air adjusting leaves 343 arranged in a linear manner and for adjusting the interval size, the end of the rotating air adjusting leaf 343 away from the connecting convex rod 349 is fixedly connected with a sealing abutting rod 344, the sealing abutting rod 344 functions to reduce the wind from entering the gap between the rotating air adjusting leaves 343 when the rotating air adjusting leaf 343 drives the sealing abutting rod 344 to abut against the rotating air adjusting leaf 343 below; a support plate 32 fixedly connected to the top of the main ventilation window 3 and the secondary ventilation window 4, the upper surface of the support plate 32 is provided with an oscillating mechanism for driving the rotating air adjusting leaves 343 to rotate by the same amplitude through the wind force; a secondary installation groove 353 and a main installation groove 342 provided in the interiors of the secondary ventilation opening 341 and the main ventilation opening 31, the interiors of the secondary installation groove 353 and the main installation groove 342 are provided with a transmission mechanism for pulling the corresponding rotating air adjusting leaf 343 to rotate synchronously; an L-shaped support 346 fixedly connected to the main ventilation opening 31 and the secondary ventilation opening 341 corresponding to the rotating air adjusting leaf 343, the interior of the L-shaped support 346 is provided with a filtering mechanism linked with the transmission mechanism to be opened.

[0032] It should be noted that the transmission mechanism comprises the pull rope 5, the top of the main ventilation window 3 and the secondary ventilation window 4 is provided with an upper through hole 352 for allowing the pull rope 5 to move through, the outer wall of the upper through hole 352 is fixedly connected with a plurality of fixed short ropes 350 corresponding to the rotating air adjusting leaf 343 and arranged in a V shape. The end of the rotating air adjusting leaf 343 close to the pull rope 5 is fixedly connected with a connecting convex rod 349 inserted into the main installation groove 342 and the secondary installation groove 353, and the end of the fixed short rope 350 away from the pull rope 5 is fixedly connected with the corresponding connecting convex rod 349.

[0033] The oscillating mechanism comprises a rotating sleeve seat 33 arranged on the support plate 32, the interior of the rotating sleeve seat 33 is movably connected with a spherical rotating seat 35, the bottom of the spherical rotating seat 35 is fixedly connected with the end of the pull rope 5, the top outer wall of the spherical rotating seat 35 is fixedly connected with a connecting rod 36, the top end of the connecting rod 36 is fixedly connected with a support shaft 37, the outer wall of the support shaft 37 is fixedly connected with a plurality of wind guide vanes 38 arranged in a circumferential array, the wind guide vanes 38 function to generate appropriate resistance through the wind blowing, and the resistance finally drives the spherical rotating seat 35 to rotate in the rotating sleeve seat 33.

[0034] Secondly, the swing mechanism further comprises a plurality of reset springs 39 fixedly connected to the top of the rotating sleeve 33 in a circumferential array, and the reset springs 39 are configured to enable the spherical rotating seat 35 to rotate by a corresponding amplitude according to the wind speed. The ends of the reset springs 39 away from the rotating sleeve 33 are fixedly connected to the outer wall of the connecting rod 36, and the bottom of the rotating sleeve 33 is fixedly connected with a plurality of support rods 34 corresponding to the reset springs 39, and the bottom ends of the support rods 34 are fixedly connected to the support plate 32.

[0035] It should be noted that the filtering mechanism comprises an automatic retractable telescopic filter screen 347 fixedly connected in the L-shaped support 346, and the telescopic filter screen 347 is used to filter large dust particles after being unfolded. The material of the telescopic filter screen 347 is polyester fiber, and the L-shaped support 346 is provided with an inclined guide surface 351. The top of the telescopic filter screen 347 is fixedly connected with a pair of connecting pull ropes 345. The connecting pull rope, the fixed short rope 350 and the connecting pull rope 345 are made of a material with high strength, durability and suitability for various harsh environments. The ends of the connecting pull rope 345 away from the telescopic filter screen 347 are fixedly connected to the upper surface of the rotating air adjusting blade 343.

[0036] Further, the main ventilation window 3 and the secondary ventilation window 4 near the open end of the cooling secondary tower 2 are provided with a fixed filter screen 3344 for filtering dust particles. The fixed filter screen 3344 is used to filter small dust particles, and when the wind speed is small or there is no wind, the dust particles in the air are small. The fixed filter screen 3344 and the telescopic filter screen 347 are both provided with filter holes, and the filter hole diameter of the fixed filter screen 3344 is smaller than that of the telescopic filter screen 347.

[0037] In this embodiment, the composite indirect evaporative cooling system is required to be used. When the cooling main tower 1 is installed outdoors and the wind speed is too large, the air guide fin 38 on the support plate 32 will sway in the rotating sleeve 33 and dump to the rear end according to the direction of the wind. The larger the wind speed, the closer to the horizontal state the air guide fin 38 will dump in sequence with the support shaft 37, the connecting rod 36 and the spherical rotating seat 35. Then the spherical rotating seat 35 pulls the driving pull rope 5 at the bottom to move, and the other end of the driving pull rope 5 pulls a plurality of fixed short ropes 350 in sequence, and the ends of the fixed short ropes 350 away from the driving pull rope 5 pull the corresponding connecting convex rods 349 upward, and the connecting convex rods 349 drive the corresponding rotating air adjusting blades 343 to rotate downward around the support rod 348. At this time, the rotating air adjusting blades 343 in the main ventilation window 3 and the secondary ventilation window 4 are from top to bottom, that is, the gap between the rotating air adjusting blades 343 is small, so as to avoid the wind speed being too large, and finally blow a lot of dust particles into the main ventilation window 3 and the secondary ventilation window 4.

[0038] When the rotating air adjusting blade 343 rotates downward, the rotating air adjusting blade 343 will drive the one end of the connecting pull rope 345 to rotate, until the sealing resistance rod 344 on the rotating air adjusting blade 343 approaches the upper surface of the lower rotating air adjusting blade 343, at this time, the other end of the connecting pull rope 345 will drive the top end of the telescopic filter screen 347 in the L-shaped support 346 to move downward, and finally unfold the telescopic filter screen 347 from the L-shaped support 346 and cooperate with the fixed filter screen 3344 on the main ventilation window 3 and the secondary ventilation window 4 to filter dust particles. In this way, only the fixed filter screen 3344 is used when the wind force is small, which can reduce the air resistance of the system, thereby reducing energy consumption and prolonging the service life of the filter. When the wind force increases, by operating the fixed filter screen 3344 and the telescopic filter screen 347 at the same time, it can ensure that the equipment fully filters dust and particulate matter in the air.

[0039] The above preferred embodiments of the present application are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the present application. The present application selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A composite indirect evaporative cooling system, comprising a cooling main tower (1) and cooling sub-towers (2) symmetrically installed on both sides of the cooling main tower (1), characterized in that: Also includes: A main ventilation window (3) and a secondary ventilation window (4) are installed on the side wall of the cooling secondary tower (2), and secondary ventilation openings (341) are provided inside the main ventilation window (3) and the secondary ventilation window (4). A main ventilation opening (31) is provided inside the main ventilation window (3), and a plurality of rotating air-regulating blades (343) arranged linearly and used to adjust the spacing are provided inside the main ventilation opening (31) and the secondary ventilation opening (341); A support plate (32) fixedly connected to the top of the main ventilation window (3) and the secondary ventilation window (4), wherein the upper surface of the support plate (32) is provided with a swing mechanism for rotating the air regulating blade (343) with the same amplitude driven by wind; A secondary installation groove (353) and a main installation groove (342) are provided inside the secondary vent (341) and the main vent (31), and a transmission mechanism for pulling the corresponding rotating air regulating blade (343) to rotate synchronously is provided inside the secondary installation groove (353) and the main installation groove (342); An L-shaped support (346) is fixedly connected to the main ventilation opening (31) and the secondary ventilation opening (341) and corresponds to the rotating air regulating blade (343), wherein a filtering mechanism that opens in conjunction with the transmission mechanism is provided inside the L-shaped support (346); The transmission mechanism includes a driving rope (5), and the tops of the main ventilation window (3) and the secondary ventilation window (4) are provided with upper through-holes (352) for the driving rope (5) to pass through, and the outer walls of the upper through-holes (352) are fixedly connected with a plurality of V-shaped fixed short ropes (350) corresponding to the rotating air-adjusting blades (343), and the ends of the rotating air-adjusting blades (343) close to the driving rope (5) are fixedly connected with connecting protrusions (349) inserted into the main mounting groove (342) and the secondary mounting groove (353), and the ends of the fixed short ropes (350) away from the driving rope (5) are fixedly connected to the corresponding connecting protrusions (349); The swing mechanism comprises a rotating sleeve (33) arranged on a support plate (32), the rotating sleeve (33) is movably connected to a spherical rotating seat (35) inside, the bottom outside of the spherical rotating seat (35) is fixedly connected to one end of a driving rope (5), the top outer wall of the spherical rotating seat (35) is fixedly connected to a connecting rod (36), the top end of the connecting rod (36) is fixedly connected to a support shaft (37), and the outer wall of the support shaft (37) is fixedly connected to a plurality of air-inducing vanes (38) distributed in a circumferential array; The swing mechanism further comprises a plurality of return springs (39) fixedly connected to the top of the rotating sleeve (33) in a circumferential array, the ends of the return springs (39) away from the rotating sleeve (33) are fixedly connected to the outer wall of the connecting rod (36), the bottom of the rotating sleeve (33) is fixedly connected to a plurality of support rods (34) corresponding to the return springs (39), and the bottom ends of the support rods (34) are fixedly connected to the support plate (32); The filtering mechanism includes a telescopic filter (347) fixedly connected in an L-shaped support (346) and automatically retractable, wherein the L-shaped support (346) is provided with an inclined guide surface (351), and a pair of connecting ropes (345) are fixedly connected to the top of the telescopic filter (347), and the ends of the connecting ropes (345) away from the telescopic filter (347) are fixedly connected to the upper surface of the rotating air regulating blade (343).

2. A composite indirect evaporative cooling system according to claim 1, characterized in that: One end of the rotating air regulating blade (343) away from the connecting protruding rod (349) is fixedly connected to a sealing supporting rod (344).

3. A composite indirect evaporative cooling system according to claim 1, characterized in that: A middle through hole (354) is provided inside the main ventilation opening (31), corresponding to the upper through hole (352) and allowing the driving rope (5) to pass through.

4. A composite indirect evaporative cooling system according to claim 1, characterized in that: A supporting rotating rod (348) that supports the rotation of a pair of rotating air regulating blades (343) in the horizontal direction is fixedly connected to the interior of the main ventilation opening (31) and the secondary ventilation opening (341).

5. The composite indirect evaporative cooling system according to claim 1, characterized in that: The main ventilation window (3) and the secondary ventilation window (4) are both provided with a fixed filter (3344) for filtering dust particles at their opening ends close to the secondary cooling tower (2). Filter holes are provided on the fixed filter (3344) and the telescopic filter (347), and the filter aperture of the fixed filter (3344) is smaller than the filter aperture of the telescopic filter (347).

6. The composite indirect evaporative cooling system according to claim 1, characterized in that: The telescopic filter (347) is made of polyester fiber.

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