Cooling tower with water collecting and fog dispersal functions

Abstract

The utility model discloses a cooling tower with water collecting and fog dispersing functions, and belongs to the technical field of water saving of cooling towers. The steam-water separation device comprises a steam-water separation area which is located between a water distribution unit and a fan, a filter screen unit used for intercepting steam is arranged in the steam-water separation area, and the filter screen unit is made of a porous material; the condensation area is located between the steam-water separation area and the water distribution unit, and a condenser arranged along the cross section of the cooling tower is arranged in the condensation area; the condenser is provided with a damp and hot channel and a dry and cold channel which are independent of each other, the damp and hot channel is communicated with the interior of the cooling tower, the dry and cold channel is connected with a cold air inlet in the cooling tower, and the condenser is used for achieving cross heat exchange treatment of two strands of air. According to the utility model, water vapor is intercepted through the steam-water separation area, and the condensing equipment is used for condensing and collecting water, so that not only is the evaporation heat exchange effect of the cooling tower effectively guaranteed, but also the purposes of fog dispersal and water saving can be achieved on the basis of not increasing energy consumption.

Description

Technical Field

[0001] The utility model belongs to the technical field of water-saving cooling towers, and more specifically relates to a cooling tower with water collecting and mist eliminating functions. Background Art

[0002] The cooling tower uses water as a circulating coolant, absorbs heat from the system and discharges it into the atmosphere, performs heat exchange to generate steam, and the steam evaporates and takes away the heat to achieve the principles of evaporative heat dissipation, convection heat transfer and radiation heat transfer to dissipate the waste heat generated in industry or refrigeration and air conditioning to reduce the water temperature. This is an evaporative heat dissipation device to ensure the normal operation of the system. The cooling tower water distributor is a key component in the cooling tower. Its main function is to evenly distribute water to the packing in the cooling tower, increase the water-gas contact interface, vaporize part of the water, take away the heat, and play a role in reducing the water temperature.

[0003] However, a recognized disadvantage of cooling towers is that under certain atmospheric conditions, water from the hot water source evaporates and is carried into the air flow from the top of the cooling tower to produce a plume. Where cooling towers are very large (such as in thermal power plants), the plume can cause low-lying fog near the cooling tower. The plume can also form ice on roads near cooling towers, where the lower temperatures can cause the water in the plume to freeze, also wasting a lot of water resources.

[0004] In order to achieve the purpose of defogging, some related solutions have been explored in the prior art, including arranging a condensation module (or defogging module) in the cooling tower to condense the upward hot and humid air, thereby achieving the effect of defogging and water saving. The above solution can be found in the following Chinese patent documents, such as Chinese patent document, application number 2023110496074, which discloses a new type of condensing defogging cooling tower, which increases the defogging and water saving effect by optimizing the condensation module structure in the tower, reducing the liquid film thickness, increasing the effective heat exchange area, and improving the comprehensive heat transfer coefficient, effectively solving the problem of limited defogging and water saving effect of the condensation module in the cooling tower.

[0005] However, the above scheme mainly explores the improvement of the condensation module structure, increases the heat exchange area, and thus optimizes the condensation effect. The cooling air of the dry cooling channel is introduced from the upper louver. On the one hand, it will destroy the original gas flow field inside the cooling tower and affect the evaporation heat exchange effect of the cooling tower itself; on the other hand, if it is necessary to ensure the normal entry of cooling air from the louver at the bottom of the cooling tower, it is usually necessary to increase the power of the fan to achieve this. This will undoubtedly increase the energy consumption of the cooling tower, which is not conducive to environmental protection and promotion. Utility Model Content

[0006] In view of the above problems, the purpose of the utility model is to provide a cooling tower with water collection and demisting function, which intercepts water vapor in the steam-water separation area and then uses condensing equipment to condense and collect water. It not only effectively guarantees the evaporation heat exchange effect of the cooling tower itself, but also can achieve the purpose of demisting and saving water without increasing the power and energy consumption of the fan.

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] The present application provides a cooling tower with water collecting and mist dissipating function, comprising:

[0009] The steam-water separation area is located between the water distribution unit and the fan. A filter unit for intercepting water vapor is provided in the steam-water separation area, and the filter unit is made of porous material;

[0010] A condensation area, which is located between the steam-water separation area and the water distribution unit, and a condenser arranged along the cross section of the cooling tower is provided in the condensation area;

[0011] The condenser is provided with independent wet heat channel and dry cold channel. The wet heat channel is connected to the inside of the cooling tower, and the dry cold channel is connected to the cold air inlet on the cooling tower. The condenser is used to realize cross heat exchange treatment of the two air streams.

[0012] In one possible implementation of the above, a steam-water separator arranged along the cross section of the cooling tower is provided in the steam-water separation area, and the steam-water separator is not limited to a single-layer structure;

[0013] The steam-water separator is provided with an installation cavity for accommodating the filter unit, and at least a part of the filter unit is embedded in the installation cavity.

[0014] In a possible implementation of the above, the steam-water separator is a single-layer structure, and the longitudinal section of the steam-water separator is an inverted V-shaped structure or a semicircular arc structure with an opening downward or an inverted U-shaped structure;

[0015] When the longitudinal section of the steam-water separator is an inverted U-shaped structure, two sides of the steam-water separator are symmetrically arranged to tilt outwards.

[0016] In a possible implementation of the above, the steam-water separator includes a pair of water collecting parts, and the pair of water collecting parts are symmetrically arranged to tilt outwards;

[0017] Each water collecting part is provided with an installation cavity, and a filter unit is installed in each installation cavity. After the water vapor is intercepted by the filter unit, steam-water separation occurs, and the separated gas passes through the filter unit and is discharged upward to the outside of the cooling tower.

[0018] In a possible implementation of the above, the steam-water separator is a double-layer structure, which includes an upper steam-water separator and a lower steam-water separator, and both the upper steam-water separator and the lower steam-water separator are provided with a mounting cavity for accommodating the filter unit;

[0019] A flow chamber is arranged between the upper steam-water separator and the lower steam-water separator, a channel connected to the flow chamber is arranged on the lower steam-water separator, and the flow chamber has two outlets, which are respectively located below the two sides of the upper steam-water separator.

[0020] In a possible implementation of the above, a pair of water collecting parts are provided on both the upper steam-water separator and the lower steam-water separator, and the pair of water collecting parts are symmetrically arranged to tilt outwards;

[0021] Each water collecting component is provided with an installation cavity, and a filter unit is installed in each installation cavity;

[0022] A lower connecting part is connected between the water collecting parts on both sides of the lower steam-water separator, and a channel communicating with the flow chamber is provided on the lower connecting part.

[0023] In a possible implementation of the above, the filter unit is made of foam metal or non-metal foam, wherein the foam metal is any one of foam nickel, foam aluminum, foam copper or foam aluminum alloy;

[0024] The non-metallic foam is any one of a filter sponge, a biochemical sponge, an activated carbon sponge or a carbon fiber sponge.

[0025] In a possible implementation of the above, a heat exchange chamber is provided inside the condenser, and a dry cooling channel is provided on the heat exchange chamber;

[0026] A wet and hot channel connected to the fan is arranged on one side of the condenser away from the fan, and an air outlet channel connected to the inside of the cooling tower is arranged on the other side of the condenser close to the fan.

[0027] In a possible implementation of the above, an air inlet condensation plate is provided on the side of the heat exchange chamber away from the fan, and a wet heat channel connected to the interior of the cooling tower is provided on the air inlet condensation plate;

[0028] And / or, an air outlet condensation plate is provided on the other side of the heat exchange chamber close to the fan, and an air outlet passage connected to the interior of the cooling tower is provided on the air outlet condensation plate.

[0029] In a possible implementation of the above, both the air inlet condensation plate and the air outlet condensation plate are made of porous materials. In this case, the wet heat channel and the air outlet channel are pore channels inside the porous material.

[0030] In a possible implementation of the above, a plurality of heat exchange tubes are arranged at intervals inside the heat exchange chamber, and each heat exchange tube is connected to the dry cooling channel;

[0031] And / or, the heat exchange tube is provided with a heat exchange channel connected to the space outside the tube.

[0032] In a possible implementation of the above, at least one layer of condensation equipment is provided in the condensation area;

[0033] and / or, when the condensing device is arranged in a single-layer structure, both ends of the condensing device extend to both ends of the cross section of the cooling tower;

[0034] And / or, a plurality of condensers are arranged in a single layer and spaced apart along the length or width direction of the cooling tower.

[0035] In a possible implementation of the above, when the condensing equipment is arranged in a double-layer or higher structure, a plurality of condensers in each layer are arranged at intervals along the cross section of the cooling tower; and / or, the multi-layer condensers are arranged in a staggered manner.

[0036] Some specific embodiments of the present invention are listed here very broadly for the purpose of better understanding its detailed description and better recognizing the technical contribution of the present invention. Of course, there are some additional embodiments of the present invention described below, which will become the subject of the attached claims.

[0037] In this regard, before describing in detail at least one embodiment of the utility model, it should be clear that the utility model is not limited to the specific structure applied for and the arrangement of components described or illustrated in the specification or drawings. The utility model may have other embodiments besides the embodiment, and may be practiced and implemented in a variety of ways. Similarly, the words and terms used herein and the abstract are only for descriptive purposes and cannot be regarded as limiting the utility model.

[0038] Therefore, it should be understood by those skilled in the art that the concept on which the present disclosure is based can be easily used as the basis for other structures, methods and systems for achieving the multiple purposes of the present utility model. Therefore, it should be considered that the claims include all equivalents that do not depart from the spirit and scope of the present utility model.

[0039] Compared with the prior art, the beneficial effects of the utility model are:

[0040] The utility model intercepts water vapor in the steam-water separation area, and then utilizes the condensing equipment to condense and collect water, which not only effectively guarantees the evaporation heat exchange effect of the cooling tower itself, but also achieves the purpose of defogging and saving water without increasing the power and energy consumption of the fan.

[0041] The utility model adds an extra steam-water separation device inside the cooling tower without changing the original internal structure and cooling form of the cooling tower. The filter screen made of porous material is used to block and collect water vapor. After the water vapor undergoes repeated physical collisions in the filter screen unit, the micron-sized water vapor collides and condenses to form millimeter-sized water droplets. Subsequently, the large-particle water droplets fall back under the action of their own gravity, thus realizing recycling and reuse, and effectively improving the water collection efficiency.

[0042] The utility model can not only realize the condensation treatment of the rising humid hot air to achieve the purpose of demisting and energy saving, but also ensure the normal flow of gas in the cooling tower without affecting the evaporation heat exchange efficiency of the cooling tower, and at the same time save the energy consumption of the cooling equipment, and has good economy and practicality.

[0043] Since the cold air outside the tower is lower in temperature than the hot and humid air at the condenser inside the tower, the utility model utilizes the temperature difference to achieve self-priming introduction of dry cold air without consuming additional energy throughout the process, thus achieving the purpose of energy saving while saving water and eliminating mist. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0045] Figure 1 A schematic diagram of the main structure of a cooling tower provided in some embodiments of the utility model, wherein a steam-water separation area and a condensation area are provided in the cooling tower, and a double-layer water distributor is provided;

[0046] Figure 2 A schematic diagram of the three-dimensional structure of a single-layer steam-water separator provided in an embodiment of the utility model;

[0047] Figure 3 A schematic diagram of the three-dimensional structure of a double-layer steam-water separator provided in an embodiment of the utility model;

[0048] Figure 4 A schematic diagram of the three-dimensional structure of the double-layer steam-water separator provided by the embodiment of the utility model from another perspective;

[0049] Figure 5 for Figure 3 A schematic diagram of the structure of the middle and upper steam-water separator from a bottom-up view;

[0050] Figure 6 for Figure 3 Schematic diagram of the three-dimensional structure of the middle and lower layer steam-water separator;

[0051] Figure 7A schematic diagram of the three-dimensional structure of the double-layer steam-water separator provided by the embodiment of the utility model after the filter screen and the cover plate are removed;

[0052] Figure 8 A schematic diagram of the structure of the upper fixed frame in the embodiment of the utility model;

[0053] Fig. 9 Schematic diagram of the flow direction of steam and water in a double-layer steam-water separator;

[0054] Fig.10 It is a schematic diagram of the three-dimensional structure of the condensing body provided in some embodiments of the utility model, wherein a closed cavity is formed inside the condensing body, a heat exchange tube is arranged in the closed cavity, and the heat exchange tube is clamped between two condensing plates made of porous materials;

[0055] Fig.11 for Fig.10 Schematic diagram of the structure with one side baffle removed.

[0056] The numbers in the figure are:

[0057] 100, upper steam-water separator; 101, upper fixing frame; 1011, extension; 110, upper cover plate; 111, upper air vent; 121, upper side plate; 122, longitudinal support member; 123, transverse support member; 124, connecting tube; 130, upper top plate; 131, mounting hole;

[0058] 200, lower layer steam-water separator; 201, lower layer fixing frame; 210, lower layer cover plate; 220, lower layer side plate; 230, lower layer top plate; 231, connecting column; 300, filter unit; 310, filter;

[0059] 400, cooling tower; 405, dry cooling channel; 406, dry cooling air control valve; 410, fan; 420, steam-water separation area; 430, condensation area; 440, water distribution unit; 450, filler unit; 460, shutter; 470, water collection tank;

[0060] 500, condensation body; 501, heat exchange chamber; 502, partition; 503, heat exchange tube; 504, air outlet condensation plate; 505, installation frame; 510, air inlet condensation plate; 511, ventilation hole; 520, dry cold air inlet; 530, inlet pipe; 540, connecting pipe. DETAILED DESCRIPTION

[0061] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0062] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0063] The utility model is further described below in conjunction with embodiments.

[0064] Embodiment: In the first aspect, the embodiment of the present application provides a cooling tower with a water collecting and mist dissipation function. To achieve the purpose of mist dissipation and water saving, the present embodiment does not change the original internal structure of the cooling tower 400 and the cooling form, and adds an additional set of steam-water separation device inside the cooling tower 400, such as Figure 1 As shown, a steam-water separator is installed between the water distribution unit 440 and the fan 410, wherein the steam-water separator is provided with an installation cavity for accommodating the filter unit 300, the filter unit 300 is at least partially embedded in the installation cavity, and the filter unit 300 is made of porous material, which is used to intercept the water vapor generated in the cooling tower 400.

[0065] It is understandable that the water vapor generated in the cooling tower 400 is usually directly discharged to the outside of the tower through the wind tube of the top fan 410, which will cause a large amount of water loss inside the cooling tower 400. After adding and using the steam-water separation device of the embodiment of the present application, the steam-water separation device is used to block and collect the water vapor. After the water vapor is physically collided repeatedly in the filter unit 300, the micron-level water vapor collides and condenses to form millimeter-level water droplets. Then, the large-particle water droplets fall back to the packing unit 450 or the water collection pool below the cooling tower 400 under the action of their own gravity, realizing recycling and reuse, and reducing the water replenishment of the cooling tower 400.

[0066] On the basis of the above, in order to further improve the effect of defogging and water saving, a condensation area 430 is provided between the water distribution unit 440 and the steam-water separator. A condensation body 500 arranged along the cross section of the cooling tower 400 is provided in the condensation area 430, which is used to intercept the rising hot and humid steam and condense it. The condensation body 500 is provided with independent hot and humid channels and dry and cold channels 405. The hot and humid channels are connected to the inside of the cooling tower 400 and are used to transport hot and humid air into the condensation body 500; the dry and cold channels 405 are connected to the cold air inlet 460 on the cooling tower 400, which are used to transport cold air outside the tower into the condensation body 500. The condensation body 500 is used to realize the cross heat exchange treatment of two air streams. The condensation body 500 is used to condense and heat exchange the hot and humid steam, so that the hot and humid steam discharged from the indoor space is cooled and condensed, and the generated condensed liquid falls back to the lower part of the cooling tower 400, and the original hot and humid steam is converted into dry saturated airflow in the indoor space and discharged to the outside of the tower through the fan 410.

[0067] It should be noted that, since the temperature of the cold air outside the tower is lower than that of the hot and humid air at the condenser 500 in the tower, the temperature difference is used to realize the self-priming introduction of dry cold air, and no additional energy is consumed throughout the process, which can achieve the purpose of energy saving while saving water and eliminating fog. The cooling medium in the condensing equipment in the prior art is usually transported by a pump body or increasing the power of the fan 410, which additionally increases the energy consumption of the system. The usual idea of ​​setting a condensing device inside the cooling tower 400 in the prior art is to add shutters to the upper part of the cooling tower 400, and then introduce cold air through the shutters on the upper part. This not only easily interferes with the gas flow field inside the cooling tower 400 and affects the evaporation heat exchange efficiency of the cooling tower 400, but also requires additional energy consumption, which is not conducive to energy saving and environmental protection.

[0068] In this embodiment, the steam-water separator is not limited to a single-layer structure. As one example, Figure 2 As shown, the steam-water separator is a single-layer structure. Specifically, the longitudinal section of the steam-water separator is an inverted V-shaped structure, a semicircular arc structure with an opening downward, or an irregular inverted U-shaped structure. The longitudinal section of the steam-water separator can also be set to other shapes as long as it can play a role in "intercepting" water vapor. When the longitudinal section of the steam-water separator is an inverted U-shaped structure (specifically, Figure 2 When the structure is shown in the figure, the two sides of the steam-water separator are arranged symmetrically and tilted outward.

[0069] Also, please refer again to Figure 2In this embodiment, the single-layer steam-water separator includes a pair of water collecting parts, which are symmetrically arranged and inclined outward; each water collecting part is provided with an installation cavity, and a filter unit 300 is installed in each installation cavity. After the water vapor is intercepted and collided by the filter unit 300, steam-water separation occurs. Most of the micron-level water vapor condenses into millimeter-level water droplets after collision and is recycled, while a small amount of micron-level water vapor after separation passes through the filter unit 300 under the entrainment of the gas and is discharged upward to the outside of the cooling tower 400.

[0070] As another example, Figure 3 As shown, the steam-water separator has a double-layer structure. Specifically, the steam-water separator includes an upper steam-water separator 100 and a lower steam-water separator 200. Both the upper steam-water separator 100 and the lower steam-water separator 200 are provided with an installation cavity for accommodating the filter unit 300. A flow chamber is provided between the upper steam-water separator 100 and the lower steam-water separator 200. The lower steam-water separator 200 is provided with a channel connected to the flow chamber. The flow chamber has two outlets, which are respectively located below the two sides of the upper steam-water separator 100.

[0071] Also, please refer again to Figure 3 As shown, in the double-layer structure of the steam-water separator in this embodiment, a pair of water collecting parts are provided on the upper steam-water separator 100 and the lower steam-water separator 200, and the water collecting parts are symmetrically arranged outwardly; each water collecting part is provided with an installation cavity, and a filter unit 300 is installed in each installation cavity. The steam-water separator can be fixedly installed on the load-bearing component inside the cooling tower 400.

[0072] Furthermore, in this embodiment, a lower connecting part 230 is connected between the water collecting parts on both sides of the lower steam-water separator 200, and a channel connected to the flow chamber is provided on the lower connecting part 230, so as to avoid that when the filter units 300 of the upper and lower steam-water separators are blocked, water vapor can enter the flow chamber through the channel of the lower connecting part 230 and be discharged from the openings on both sides, so as to avoid affecting the normal use of the cooling tower 400. Through the double-layer or even multi-layer steam-water separator structure and the opening of the channel on the lower steam-water separator 200, not only can the evaporated water be efficiently collected, but also the problem that when the filter is blocked, the water vapor cannot pass through and the cooling tower equipment cannot operate normally is solved, especially in cold areas (filter ice) and windy and sandy areas (sand and dust blockage).

[0073] It is understandable that the longitudinal sections of the upper steam-water separator 100 and the lower steam-water separator 200 are in an inverted V-shaped structure, a semicircular arc structure with an opening facing downward, or an irregular inverted U-shaped structure; the longitudinal section of the steam-water separator can also be set to other shapes, as long as it can play a role in "intercepting" water vapor. When the longitudinal sections of the upper steam-water separator 100 and the lower steam-water separator 200 are in an irregular inverted U-shaped structure, the two sides of the steam-water separator are symmetrically arranged to tilt outward. The water vapor is intercepted by the lower steam-water separator 200 and the upper steam-water separator 100 in turn, which can effectively improve the water collection efficiency.

[0074] In some feasible embodiments, the upper steam-water separator 100 and the lower steam-water separator 200 have the same longitudinal cross-sectional structure and are arranged in parallel up and down. For details, please refer to Figure 4 The longitudinal sections of the upper steam-water separator 100 and the lower steam-water separator 200 are both in an outward-facing U-shaped structure. When the longitudinal section of the upper steam-water separator 100 is in an inverted U-shaped structure, an upper connecting portion 130 is connected between the water collecting portions on both sides of the upper steam-water separator 100, and the upper connecting portion 130 is in a closed state, so that water vapor cannot penetrate the upper connecting portion 130, thereby preventing the water vapor passing through the channel of the lower connecting portion 230 from directly passing through the upper connecting portion 130 without colliding with the filter 310, and thus effectively intercepting the water vapor and improving the water collecting efficiency.

[0075] In order to facilitate the filter 210 to "capture" water vapor, the filter unit 300 is made of foam metal or non-metal foam, wherein the foam metal is any one of foam nickel, foam aluminum, foam copper or foam aluminum alloy; the non-metal foam is any one of filter sponge, biochemical sponge, activated carbon sponge or carbon fiber sponge.

[0076] In some feasible embodiments, a support unit for supporting the filter unit 300 is provided below the installation cavity, and is used to support and limit the filter unit 300 from the bottom. In this embodiment, the support unit includes a transverse support member 123, and the two sides of the transverse support member 123 are kept flush with the two transverse sides of the installation cavity or extend beyond the two transverse sides of the installation cavity, so as to facilitate the transverse support of the filter unit 310 in the installation cavity from the bottom. Specifically, in this embodiment, the transverse support member 123 can be a support rod, or a support plate or a support plate or other items that can play a transverse supporting role. The support unit structure at the bottom of the upper steam-water separator 100 and the lower steam-water separator 200 can be the same or different structures, as long as they can play a corresponding supporting role for the installation cavity from the bottom.

[0077] It should be pointed out that the transverse support member 123 can be replaced by a longitudinal support member 122, the two sides of the longitudinal support member 122 are kept flush with the longitudinal sides of the installation cavity or extend beyond the longitudinal outer positions of the installation cavity of the water collecting parts on both sides, the longitudinal support member 122 is an integrally formed structure, the center position of which is fitted at the bottom of the upper connecting part 130 or the lower connecting part 230, and the two sides of the longitudinal support member 122 extend to the longitudinal sides respectively, so as to realize the longitudinal support of the filter unit 310 in the installation cavity of the water collecting parts on both sides from the bottom. In another embodiment, the transverse support member 123 and the longitudinal support member 122 can also exist at the same time, which can effectively improve the stable support of the filter unit 310 and effectively avoid the problem of the filter unit 310 falling off.

[0078] In this embodiment, a cover plate is provided above the installation cavity, and the cover plate is used to restrict the filter unit 300 in the installation cavity from above; an air outlet channel is provided on the cover plate, and the air outlet channel is used to discharge the dry gas separated from the steam and water after being intercepted by the filter unit 300, so as to ensure the normal operation of the cooling tower 400. Specifically, in this embodiment, an upper cover plate 110 and a lower cover plate 210 are provided above the installation cavity of the upper steam-water separator 100 and the lower steam-water separator 200, respectively.

[0079] See also Fig. 9 The flow path of water vapor in the double-layer steam-water separation device of this embodiment works as follows:

[0080] When the filter units 300 of the upper steam-water separator 100 and the lower steam-water separator 200 are not blocked, the water vapor is driven by the fan 410, and the water vapor is intercepted by the lower steam-water separator 200 and the upper steam-water separator 100 in turn, and after repeated physical collisions in the filter unit 300, most of the micron-level water vapor is collided to form millimeter-level water droplets, and then the condensed water droplets fall back to the packing unit 440 or the water collection pool under the action of gravity, while the gas in the water vapor and the micron-level water vapor pass through the filter unit 300 and are discharged upward outside the tower. On the basis of ensuring the cooling function of the cooling tower 400 itself, the water vapor is recycled and utilized to achieve the purpose of water saving.

[0081] (2) When the filter units 300 of the upper steam-water separator 100 and the lower steam-water separator 200 are both blocked, the water vapor enters the flow chamber through the channel and then moves to both sides until it is discharged from the openings on the corresponding sides. Fig. 9 Indicated by arrow.

[0082] In some feasible embodiments, a steam-water separation area 420 is provided inside the cooling tower 400, and the steam-water separation area 420 is located between the water distribution unit 440 and the fan 410. The steam-water separation area 420 is provided with the above-mentioned steam-water separation device. By adding the steam-water separation area 420, the wet steam in the exhausted water vapor can be collected, and the rising water vapor is intercepted by the steam-water separation device, and the water vapor is condensed into large water droplets after physical collision in the filter 310. The large water droplets fall back to the filler unit 440 or the water collection tank 470 below, thereby achieving the purpose of water saving.

[0083] It can be understood that in this embodiment, at least one layer of steam-water separation devices is provided in the steam-water separation area 420. When the steam-water separation device is arranged in a single-layer structure, the two ends of a single steam-water separation device extend to the two ends of the cooling tower 400; or multiple steam-water separation devices are arranged in a single layer and arranged at intervals along the length or width direction of the cooling tower 400. When the steam-water separation device is arranged in a double-layer or higher structure, multiple steam-water separation devices in each layer are arranged at intervals along the length or width direction of the cooling tower 400, and multiple layers of steam-water separation devices are arranged in a staggered manner, which can effectively improve the steam-water separation effect and improve the water collection efficiency.

[0084] As another example, there are two dry cooling channels 405, which are symmetrically arranged on both sides of the condenser 500, wherein each dry cooling channel 405 is respectively connected to the cold air inlet 460 on the corresponding side, which can effectively improve the condensation heat exchange efficiency. Specifically, in this embodiment, dry cooling air inlets 520 are symmetrically arranged on both sides of the condenser 500, and the output end of the dry cooling channel 405 is connected to the dry cooling air inlet 520. The condensing equipment of this embodiment can not only realize the condensation treatment of the rising hot and humid air to achieve the purpose of defogging and energy saving, but also ensure the normal flow of gas inside the cooling tower 400, without affecting the evaporation heat exchange efficiency of the cooling tower 400, and will not increase the energy consumption of the fan 410, and has good economy and practicality.

[0085] In some feasible embodiments, the condenser 500 has a heat exchange chamber 501 inside, and the heat exchange chamber 501 is provided with a dry cooling channel 405 connected to the inside of the heat exchange chamber 501, which is used to transport dry cooling air into the heat exchange chamber 501. Figure 1In the orientation shown in , in this embodiment, a wet and hot channel connected to the inside of the heat exchange chamber 501 is provided on the side of the condenser 500 away from the fan 410, which is used to transport wet and hot air into the heat exchange chamber 501, and an air outlet channel connected to the inside of the cooling tower 400 is provided on the other side of the condenser 500 close to the fan 410. The two streams of air cross-flow in the heat exchange chamber 501 and perform contact heat exchange. After the heat exchange, the temperature of the wet and hot air decreases, and the condensed water formed by the condensation of water vapor flows downward for recovery. After the two streams of air pass through the condenser 500, they are evenly mixed and heat exchanged and condensed, which reduces the humidity in the original wet and hot air, and then are discharged to the outside of the tower from the fan 410, which can achieve defogging and water saving.

[0086] In some achievable embodiments, an air inlet condensation plate 510 is provided on the side of the heat exchange chamber 501 facing away from the fan 410, and a humid heat passage communicating with the interior of the cooling tower 400 is provided on the air inlet condensation plate 510; the air inlet condensation plate 510 is used to seal the heat exchange chamber 501 from the bottom, and intercept and condense the humid heat air rising from the interior of the cooling tower 400. An air outlet condensation plate 504 is provided on the other side of the heat exchange chamber 501 close to the fan 410, and an air outlet passage communicating with the interior of the cooling tower 400 is provided on the air outlet condensation plate 504; the air outlet condensation plate 504 is used to seal the heat exchange chamber 501 from the top, and the humid heat air after condensation and heat exchange in the heat exchange chamber 501 is discharged from the air outlet passage.

[0087] Combination Fig.10 and Fig.11 As shown, in this embodiment, the air inlet condensation plate 510 and the air outlet condensation plate 504 are both made of porous materials. At this time, the wet heat channel and the air outlet channel are pore channels inside the porous material. The wet hot air enters the pore channel of the porous material and condenses after multiple collisions, which can achieve better interception and condensation effects. At the same time, a heat exchange tube 503 is provided in the heat exchange chamber 501, and each heat exchange tube 503 is connected to the dry cold channel 405. The heat exchange tube 503 is clamped between the condensation plates on both sides, and the condensation plates on both sides are embedded in the installation frame 505. In this embodiment, the outer surface of the heat exchange tube 503 is evenly surrounded by a plurality of ventilation holes 511, which are used to input cold air into the heat exchange chamber 501, and cool down the condensation plates on both sides to increase the condensation effect.

[0088] In practice, the porous material can be foam metal or non-metal foam, wherein the foam metal is any one of foam nickel, foam aluminum, foam copper or foam aluminum alloy; the non-metal foam is any one of filter sponge, biochemical sponge, activated carbon sponge or carbon fiber sponge.

[0089] It should be noted that, in some examples, the inlet condensation plate 510 and the outlet condensation plate 504 may also be a grid structure or a grille structure; or the surfaces of the inlet condensation plate 510 and the outlet condensation plate 504 may be provided with ventilation holes 511. As long as the hot and humid air can penetrate the heat exchange chamber 501 and be condensed by the cold air, it will be fine.

[0090] In some examples, in this embodiment, a plurality of heat exchange tubes 503 are arranged at intervals inside the heat exchange chamber 501, and each heat exchange tube 503 is connected to the dry cold channel 405. The hot and humid air enters the heat exchange chamber 501 through the hot and humid channel and performs heat exchange and condensation with the dry cold air in the heat exchange tube 503. If the heat exchange tube 503 is not provided with a heat exchange channel connected to the outside of the tube, the hot and humid air performs non-contact heat exchange and condensation with the dry cold air in the tube. If the heat exchange tube 503 is provided with a heat exchange channel connected to the space outside the tube, the dry cold air enters the heat exchange chamber 501 through the heat exchange channel and performs contact heat exchange and condensation with the hot and humid air.

[0091] In some examples, the heat exchange channel is an air exchange hole 511, and the air exchange hole 511 is arranged on at least part of the outer surface of the heat exchange tube 503. The structure of the heat exchange hole 511 is not limited to a circular through-hole structure, and can also be an elliptical hole structure or other regular or irregular hole structures. Preferably, the heat exchange holes 511 are evenly distributed on the outer surface of the heat exchange tube 503, which can achieve uniform output of cold air and a relatively stable output airflow. It is understandable that the heat exchange channel can be replaced with a grid-type hollow structure or a round-shaped groove structure.

[0092] It is understandable that in the present embodiment, no less than one layer of condensing equipment is provided in the condensing area 430; when the condensing equipment is arranged in a single-layer structure, the two ends of a single condensing equipment extend to the two ends of the cross section of the cooling tower 400; or, a plurality of condensers 500 are arranged in a single layer and are arranged at intervals along the length or width direction of the cooling tower 400. When the condensing equipment is arranged in a double-layer or higher structure, the multiple condensers 500 of each layer are arranged at intervals along the cross section of the cooling tower 400, and the multi-layer condensers 500 are arranged in a staggered manner, which can effectively improve the condensation heat exchange effect and improve the water collection efficiency. In summary, the condensing equipment and cooling tower of the present application are scientifically and reasonably designed, can play an important role in industrial production and other fields, can help users reduce operating costs, and improve the overall efficiency of the system.

[0093] It is to be appreciated that the above description with reference to the accompanying drawings provides a detailed and sufficient description of the components and operation of the system. However, the following discussion further describes the operating modes of some embodiments of the system.

[0094] It is understood that in the relevant drawings of the embodiments of the present application, some structural features may be shown in a specific arrangement and / or order. However, it should be understood that such a specific arrangement and / or order is not necessary. Instead, in some embodiments, these features may be described in a manner and / or order different from that shown in the illustrative drawings. In addition, the structural features included in a specific drawing do not mean that all embodiments need to include such features. In some embodiments, these features may not be included, or these features may be combined with other features.

[0095] References to "one embodiment" or "an embodiment" in the specification mean that the specific features, structures, or characteristics described in conjunction with the embodiment are included in at least one exemplary implementation or technology disclosed according to the embodiment of the present application. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily all refer to the same embodiment.

[0096] In addition, the language used in this specification has been primarily selected for readability and instructional purposes and may not be selected to describe or limit the disclosed subject matter. Therefore, the disclosure of the embodiments of the present application is intended to illustrate rather than limit the scope of the concepts discussed herein.

[0097] Many features and advantages of the present invention are apparent in the detailed description, therefore, all features and advantages of the present invention are covered by the appended claims and fall within the substantial spirit and scope of the present invention. Further, since it is easy to make various modifications and variations in technology, it is not expected to limit the present invention to a specific structure and mode of operation, therefore, all modifications and equivalents that can be adopted fall within the scope of the present invention.

Claims

1. A cooling tower with water collecting and mist dissipating function, characterized in that: include: a steam-water separation area (420) located between the water distribution unit (440) and the fan (410); a filter unit (300) for intercepting water vapor is provided in the steam-water separation area (420); and the filter unit (300) is made of a porous material; A condensation area (430) located between the steam-water separation area (420) and the water distribution unit (440), wherein a condenser (500) arranged along a cross section of the cooling tower (400) is provided in the condensation area (430); The condenser (500) is provided with mutually independent hot and wet channels and dry and cold channels (405); the hot and wet channels are connected to the interior of the cooling tower (400); the dry and cold channels (405) are connected to the cold air inlet (460) on the cooling tower (400); and the condenser (500) is used to achieve cross heat exchange processing of the two air streams.

2. The cooling tower with water collecting and mist dissipating function according to claim 1, characterized in that: The steam-water separation area (420) is provided with a steam-water separator arranged along the cross section of the cooling tower (400), and the steam-water separator is not limited to a single-layer structure; The steam-water separator is provided with a mounting cavity for accommodating the filter unit (300), and at least a portion of the filter unit (300) is embedded in the mounting cavity.

3. The cooling tower with water collecting and mist dissipating function according to claim 2, characterized in that: The steam-water separator is a single-layer structure, and the longitudinal section of the steam-water separator is an inverted V-shaped structure, a semicircular arc structure with an opening downward, or an inverted U-shaped structure; When the longitudinal section of the steam-water separator is an inverted U-shaped structure, two sides of the steam-water separator are symmetrically arranged to tilt outwards.

4. The cooling tower with water collecting and mist dissipating function according to claim 2, characterized in that: The steam-water separator is a double-layer structure, comprising an upper steam-water separator (100) and a lower steam-water separator (200), and both the upper steam-water separator (100) and the lower steam-water separator (200) are provided with a mounting cavity for accommodating a filter unit (300); A circulation chamber is provided between the upper steam-water separator (100) and the lower steam-water separator (200); a channel communicating with the circulation chamber is provided on the lower steam-water separator (200); and the circulation chamber has two outlets, which are respectively located below two sides of the upper steam-water separator (100).

5. The cooling tower with water collecting and mist dissipating function according to claim 1, characterized in that: The filter unit (300) is made of foam metal or non-metal foam, wherein the foam metal is any one of foam nickel, foam aluminum, foam copper or foam aluminum alloy; The non-metallic foam is any one of a filter sponge, a biochemical sponge, an activated carbon sponge or a carbon fiber sponge.

6. The cooling tower with water collecting and mist dissipating function according to claim 1, characterized in that: The condenser (500) has a heat exchange chamber (501) inside, and the heat exchange chamber (501) is provided with a dry cooling channel (405) connected thereto; A wet and hot channel communicating with the fan (410) is provided on one side of the condenser (500) facing away from the fan (410), and an air outlet channel communicating with the interior of the cooling tower (400) is provided on the other side of the condenser (500) close to the fan (410).

7. The cooling tower with water collecting and mist dissipating function according to claim 6, characterized in that: An air intake condensation plate (510) is provided on a side of the heat exchange chamber (501) facing away from the fan (410), and a wet heat channel communicating with the interior of the cooling tower (400) is provided on the air intake condensation plate (510); And / or, an air outlet condensation plate (504) is provided on the other side of the heat exchange chamber (501) close to the fan (410), and an air outlet condensation plate (504) is provided on the air outlet condensation plate (504) and is connected to the interior of the cooling tower (400).

8. The cooling tower with water collecting and mist dissipating function according to claim 7, characterized in that: The air inlet condensation plate (510) and the air outlet condensation plate (504) are both made of porous materials, and the wet heat channel and the air outlet channel are pore channels inside the porous materials.

9. The cooling tower with water collecting and mist dissipating function according to claim 8, characterized in that: A plurality of heat exchange tubes (503) are arranged at intervals inside the heat exchange chamber (501), and each heat exchange tube (503) is connected to the dry cooling channel (405); And / or, the heat exchange tube (503) is provided with a heat exchange channel connected to the space outside the tube.

10. The cooling tower with water collecting and mist dissipating function according to any one of claims 1 to 9, characterized in that: The condensation area (430) is provided with at least one layer of condensation equipment; and / or, when the condensing device is arranged in a single-layer structure, both ends of the condenser (500) extend to both ends of the cross section of the cooling tower (400); And / or, the plurality of condensers (500) are arranged in a single layer and are arranged at intervals along the length or width direction of the cooling tower (400); When the condensing equipment is arranged in a double-layer or higher structure, a plurality of the condensers (500) in each layer are arranged at intervals along the cross section of the cooling tower (400); And / or, multiple layers of the condensers (500) are arranged in a staggered manner.

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