Water-saving device for reducing drifting of cooling tower

Abstract

The utility model discloses a water-saving device for reducing drifting of a cooling tower, which comprises a water collecting component, a water outlet component and a water outlet component, the air chamber is arranged on the outer side wall of the cooling tower and used for conveying cold air to the water collecting assembly; the fan is communicated with the air chamber and is used for providing cold air for the air chamber; the water collecting assembly comprises a supporting frame which is arranged in the cooling tower, and the arrangement height of the supporting frame is equal to that of the air chamber; the hollow water collecting sheet is adaptively arranged in the supporting frame and is in a cuboid shape on the whole; air holes are formed in the upper surface of the hollow water collecting sheet; the open end of the hollow water collecting sheet is communicated with the air chamber; a plurality of hollow water collecting sheets are arranged at equal intervals, and channels are formed between the left and right side surfaces of the adjacent hollow water collecting sheets; cold air conveyed to the air chamber by the fan flows out of the air holes of the hollow water collecting sheet to cool the hollow water collecting sheet; a channel between every two adjacent hollow water collecting pieces is a circulation channel for hot and humid air in the cooling tower.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling tower water saving, and particularly relates to a water saving device for reducing the drift droplets of a cooling tower. Background Art

[0002] In a cooling tower, when the humid and hot air carrying the waste heat of the cooling water is discharged from the tower outlet, it often entangles some small droplets of the cooling water, and these small water droplets are called drift droplets. The drift droplets not only waste precious water resources, but also the salts, impurities, bacteria and other substances contained therein will cause harm to pipelines, buildings, equipment, animals and plants. The water collector is a key component for solving the problem of drift droplets in the cooling tower and is used to collect the moisture in the humid and hot air discharged from the cooling tower. However, at present, the water collection efficiency of most water collectors on the market can only reach five ten-thousandths, and there is still room for further improvement. Summary of the Utility Model

[0003] In view of this, some embodiments disclose a water saving device for reducing the drift droplets of a cooling tower, including:

[0004] A water collection assembly, which is arranged above the spraying device in the cooling tower;

[0005] An air chamber, which is adaptively arranged on the outer side wall of the cooling tower and is used to convey cold air to the water collection assembly;

[0006] A fan, which is arranged in communication with the air chamber and is used to provide cold air to the air chamber;

[0007] Among them, the water collection assembly includes:

[0008] A support frame, which is adaptively installed in the cooling tower, and the installation height thereof is equivalent to the installation height of the air chamber;

[0009] A hollow water collection sheet, which is adaptively arranged in the support frame;

[0010] Among them, the hollow water collection sheet is integrally rectangular parallelepiped-shaped; one end of the hollow water collection sheet is open and the other end is closed; the hollow water collection sheet is horizontally arranged, and its open end is arranged in communication with the air chamber; air holes are arranged on the upper surface of the hollow water collection sheet;

[0011] A plurality of hollow water collection sheets are arranged at equal intervals, and channels are formed between the left and right side surfaces of adjacent hollow water collection sheets;

[0012] The cold air conveyed by the fan to the air chamber flows out from the air holes of the hollow water collection sheet to cool the hollow water collection sheet; the channels between adjacent hollow water collection sheets are the flow channels for the humid and hot air in the cooling tower.

[0013] For the water saving device for reducing the drift droplets of a cooling tower disclosed in some embodiments, a plurality of water collection assemblies are provided, and the plurality of water collection assemblies are arranged at intervals in the vertical direction, and the channels of adjacent water collection assemblies correspond to each other.

[0014] In some embodiments, the water-saving device for reducing the drift of cooling towers has two water collection components.

[0015] In some embodiments, the spacing distance between two adjacent water collection components of the water-saving device for reducing the drift of cooling towers is not less than 0.5 m.

[0016] In some embodiments, the left and right sides of the hollow water collection sheet are arc-shaped surfaces in the vertical direction.

[0017] In some embodiments, the protruding directions of the left and right sides of the hollow water collection sheet are the same.

[0018] In some embodiments, the protruding directions of the arc-shaped surfaces of the hollow water collection sheets of adjacent water collection components are opposite.

[0019] In some embodiments, the hollow water collection sheet is detachably arranged.

[0020] In some embodiments, the arc-shaped surface of the hollow water collection sheet has an arc-shaped protruding rib.

[0021] In some embodiments, the arc-shaped protruding rib is located in the middle of the hollow water collection sheet.

[0022] In the water-saving device for reducing the drift of cooling towers disclosed in the embodiments of the present utility model, the cold air conveyed by the fan to the air chamber flows out from the air holes of the hollow water collection sheet, cooling the hollow water collection sheet; a circulation channel for the humid and hot air in the cooling tower is formed between adjacent hollow water collection sheets, and the humid and hot air in the cooling tower flows upward through this channel. The flow path of the humid and hot air changes, and some of the drift in the humid and hot air condenses into water due to the lower temperature in this channel and flows back to the cooling tower. Another part of the drift in the humid and hot air hits the hollow water collection sheet under the action of inertia and condenses into water, flowing back to the cooling tower, reducing the drift in the humid and hot air. The water-saving device for reducing the drift of cooling towers disclosed in the embodiments of the present utility model has a simple structure, can effectively recover the drift carried by the humid and hot air in the tower, improve the water collection efficiency, reduce the water consumption of the cooling tower, and has strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic layout diagram of the water-saving device for reducing the drift of cooling towers in Embodiment 1;

[0024] Figure 2 Schematic structural diagram of the water-saving device for reducing the drift of cooling towers in Embodiment 1;

[0025] Figure 3Schematic structural diagram of the hollow water collecting sheet in Embodiment 1;

[0026] Figure 4 Schematic diagram of the cold air flow direction in Embodiment 1;

[0027] Figure 5 Schematic diagram of the humid and hot air flow direction in Embodiment 1.

[0028] Reference numerals

[0029] 1 Water collecting assembly 2 Air chamber

[0030] 3 Fan 11 Support frame

[0031] 12 Hollow water collecting sheet 13 Channel

[0032] 121 Air hole 100 Cooling tower

[0033] 200 Spraying device Detailed implementation manners

[0034] Here, the special term "embodiment", any embodiment described as "exemplary" does not have to be construed as superior to or better than other embodiments. For the performance index tests in the embodiments of this application, unless otherwise specified, conventional test methods in the art are adopted. It should be understood that the terms described in this application are only used to describe specific implementation manners and are not used to limit the content disclosed in this application.

[0035] Unless otherwise specified, the technical and scientific terms used herein have the same meanings as those commonly understood by those of ordinary skill in the technical field to which this application belongs; other test methods and technical means not specifically noted in this application refer to the experimental methods and technical means commonly adopted by those of ordinary skill in the art.

[0036] As used herein, the terms "substantially" and "about" are used to describe minor fluctuations. For example, they can refer to less than or equal to ±5%, such as less than or equal to ±2%, such as less than or equal to ±1%, such as less than or equal to ±0.5%, such as less than or equal to ±0.2%, such as less than or equal to ±0.1%, such as less than or equal to ±0.05%. Numerical data presented or represented herein in a range format are used only for convenience and brevity and should therefore be interpreted flexibly as including not only the values expressly listed as the bounds of the range but also all individual values or sub-ranges included within that range. For example, a numerical range of "1 to 5%" should be interpreted as including not only the expressly listed values of 1% to 5% but also individual values and sub-ranges within the indicated range. Thus, individual values such as 2%, 3.5%, and 4% and sub-ranges such as 1% to 3%, 2% to 4%, and 3% to 5% etc. are included within this numerical range. This principle also applies to ranges listing only one numerical value. In addition, such an interpretation applies regardless of the width of the range or the characteristics described.

[0037] As used herein, including in the claims, conjunctive words such as "comprising", "including", "carrying", "having", "containing", "involving", "accommodating", etc. are understood to be open-ended, that is, meaning "including but not limited to". Only the conjunctive words "consisting of" and "composed of" are closed conjunctions.

[0038] To better illustrate the content of the present application, numerous specific details are given in the following specific embodiments. Those skilled in the art should understand that the present application can be implemented without certain specific details. In the embodiments, some methods, means, instruments, devices, etc. well-known to those skilled in the art are not described in detail in order to highlight the gist of the present application.

[0039] On the premise of no conflict, the technical features disclosed in the embodiments of the present application can be combined arbitrarily, and the obtained technical solutions belong to the content disclosed in the embodiments of the present application. It should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. mentioned in the present application 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 technical features 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 a limitation of the present invention unless it conflicts with the context. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance unless it conflicts with the context.

[0040] In some embodiments, a water-saving device for reducing the drift of cooling towers includes:

[0041] The water collecting component is arranged above the spraying device in the cooling tower;

[0042] The air chamber is adaptively arranged on the outer side wall of the cooling tower and is used to convey cold air to the water collecting component;

[0043] The fan is arranged to communicate with the air chamber and is used to supply cold air to the air chamber;

[0044] Among them, the water collecting component includes:

[0045] The support frame is adaptively installed in the cooling tower, and its installation height is equivalent to the installation height of the air chamber, so as to facilitate the setting of the hollow water collecting sheet and make the hollow water collecting sheet communicate with the air chamber;

[0046] The hollow water collecting sheet is adaptively arranged in the support frame and is stably arranged in the cooling tower through the support frame;

[0047] Among them, the hollow water collecting sheet is integrally rectangular; one end of the hollow water collecting sheet is open and the other end is closed; the hollow water collecting sheet is horizontally arranged, and its open end is arranged to communicate with the air chamber; air holes are arranged on the upper surface of the hollow water collecting sheet; the cold air conveyed by the fan to the air chamber flows out from the air holes of the hollow water collecting sheet to cool the hollow water collecting sheet; the fan sends the cold air into the hollow water collecting sheet through the air chamber, the cold air enters the hollow water collecting sheet from the open end of the hollow water collecting sheet, cools the hollow water collecting sheet, and then is discharged through the air holes on the upper surface of the hollow water collecting sheet and enters the cooling tower; after these cold air enters the cooling tower, it can also condense some of the droplets in the wet and hot air into water; generally, for the hollow water collecting sheet that is integrally rectangular, the side edges in the length direction and the side edges in the width direction form two larger side areas, the side edges in the length direction and the side edges in the thickness direction form two smaller surface areas, and the side edges in the width direction and the side edges in the thickness direction form two smaller end face areas. Therefore, the side surface of the hollow water collecting sheet can be arranged vertically, and the horizontal surface of the hollow water collecting sheet can be arranged horizontally. In this way, the channel area formed between the hollow water collecting sheets is larger, which is beneficial to cooling the wet and hot air and promoting the condensation and collection of water vapor;

[0048] A plurality of hollow water collecting sheets are arranged at equal intervals, and channels are formed between the left and right side surfaces of adjacent hollow water collecting sheets; the channels between adjacent hollow water collecting sheets are the flow channels for the wet and hot air in the cooling tower. The wet and hot air flows along this channel, and its flow path changes due to the interaction with the horizontal side surface of the hollow water collecting sheet. Some of the droplets in the wet and hot air condense into water and flow back to the cooling tower due to the lower temperature of this channel, and some of the droplets condense into water and flow back to the cooling tower due to the inertial effect when hitting the hollow water collecting sheet.

[0049] Generally, the width of the channel formed between the adjacent side surfaces of adjacent hollow water collecting sheets is greater than the width of the hollow water collecting sheet. However, generally, the width of the channel is not greater than three times the width of the hollow water collecting sheet.

[0050] In some embodiments, a plurality of water collection components are provided, and the plurality of water collection components are arranged at intervals in the vertical direction. The channels of adjacent water collection components correspond to each other so that the humid and hot air can flow continuously. By providing a plurality of water collection components, it is possible to continuously change the flow path of the humid and hot air multiple times, and to condense and collect the droplets in the humid and hot air multiple times, thereby reducing the droplet content in the humid and hot air and improving the water collection effect. Generally, the number of water collection components provided and the size of the air chamber can be adjusted according to requirements.

[0051] In some embodiments, two water collection components are provided.

[0052] In some embodiments, the distance between two adjacent water collection components is not less than 0.5 m. Generally, by adjusting the distance between two adjacent water collection components, it is helpful to correct the flow direction of the humid and hot air, facilitate further condensation and collection of the droplets in the humid and hot air, and achieve a better water collection effect.

[0053] In some embodiments, the left and right side surfaces of the hollow water collection sheet are arc-shaped surfaces in the vertical direction, and the channels formed between adjacent hollow water collection sheets are correspondingly arc-shaped. The humid and hot air flows upward along this channel and is likely to collide with the arc-shaped surface, and the water droplets in the humid and hot air condense into liquid water on the arc-shaped surface.

[0054] In some embodiments, the protruding directions of the left and right side surfaces of the hollow water collection sheet are the same. Usually, the left and right side surfaces of the hollow water collection sheet are arc-shaped in the vertical direction and have a protruding arc-shaped surface. When the protruding directions of the arc-shaped surfaces are the same, the channels formed between the arc-shaped surfaces of multiple adjacent hollow water collection sheets have the same extension direction, which is beneficial to the uniform upward flow of the humid and hot air in the cooling tower.

[0055] Generally, the width of the channel formed by the hollow water collection sheets with arc-shaped surfaces is greater than the width of the hollow water collection sheet; usually, it is greater than the protruding height of the arc-shaped surface.

[0056] In some embodiments, the protruding directions of the arc-shaped surfaces of the hollow water collection sheets of adjacent water collection components are opposite, so that the humid and hot air turns continuously when flowing upward, which helps to condense and collect the droplets in the humid and hot air.

[0057] In some embodiments, the hollow water collection sheet is detachably arranged.

[0058] In some embodiments, the hollow water collection sheet is installed on the support frame by bolts, which is convenient for installation, disassembly and subsequent maintenance.

[0059] In some embodiments, the arc-shaped surface of the hollow water collection sheet has an arc-shaped protruding rib. In some embodiments, the arc-shaped protruding rib is located in the middle of the hollow water collection sheet.

[0060] In some embodiments, the support frame is a square frame structure, and both ends of the support frame are fixedly installed on the opposite side walls inside the cooling tower.

[0061] In some embodiments, the support frame is a square frame structure. One end of the support frame is fixed on the inner side wall of the cooling tower where the air chamber is installed, and the other end of the support frame extends into the interior of the cooling tower.

[0062] The following further exemplarily illustrates the technical details in conjunction with the embodiments.

[0063] Embodiment 1

[0064] Figure 1 FIG. is a layout schematic diagram of the water-saving device for reducing the drift droplets of the cooling tower disclosed in Embodiment 1; Figure 2 FIG. is a structural schematic diagram of the water-saving device for reducing the drift droplets of the cooling tower disclosed in Embodiment 1; Figure 3 FIG. is a structural schematic diagram of the hollow water collecting sheet disclosed in Embodiment 1; Figure 4 FIG. is a schematic diagram of the cold air flow direction disclosed in Embodiment 1; Figure 5 FIG. is a schematic diagram of the humid and hot air flow direction disclosed in Embodiment 1.

[0065] As Figures 1 to 3 shown, the water-saving device for reducing the drift droplets of the cooling tower includes two water collecting assemblies 1 above the spraying device 200, an air chamber 2 arranged on the left side wall of the cooling tower 100 and communicated with the two water collecting assemblies 1, and a fan 3 arranged on the left side of the air chamber 2 and communicated with the air chamber.

[0066] Among them, the water collecting assembly 1 includes a support frame 11 and hollow water collecting sheets 12 arranged in the support frame 11. The left and right side surfaces of the hollow water collecting sheets 12 are arc-shaped surfaces in the vertical direction, and both the left and right side surfaces of the hollow water collecting sheets 12 bulge to the left. The left end opening of the hollow water collecting sheet 12 is communicated with the air chamber 2, the right end is closed, and a plurality of air holes 121 are opened on the upper surface of the hollow water collecting sheet 12; a plurality of hollow water collecting sheets 12 are arranged at equal intervals in the horizontal direction in the support frame 11, and arc-shaped channels 13 are formed in the vertical direction between the left and right side surfaces of adjacent hollow water collecting sheets.

[0067] As Figure 4 shown, the outside cold air enters the hollow water collecting sheet 12 from the opening at the left end of the hollow water collecting sheet 12, cools the hollow water collecting sheet 12, and then discharges from the air holes 121 on the upper surface of the hollow water collecting sheet 12 and diffuses into the cooling tower; as Figure 5As shown in the figure, the protruding directions of the hollow water collecting pieces 12 in the upper and lower water collecting components are opposite. The humid and hot air after heat exchange through the cooling tower packing first enters the lower water collecting component. The humid air is evenly dispersed into each channel 13 of the lower water collecting component, continuously turns and rises along the channel 13, corrects its flow direction in the spacer layer between the two water collecting components, then continues to flow upward, enters the channel 13 of the upper water collecting component, continuously turns and rises in the channel of the upper water collecting component in the direction opposite to that of the channel of the lower water collecting component, and finally rises to the top of the cooling tower and is discharged from the top of the cooling tower; during this process, a part of the droplets carried in the humid and hot air impacts the hollow water collecting piece 12 due to inertia and is condensed by the cooled hollow water collecting piece 12 to form a liquid film and flow back into the cooling tower. Another part of the droplets carried in the humid and hot air is condensed into water due to the lower temperature in the channel and flows back into the cooling tower; the droplets in the humid and hot air gradually decrease, and the water collection efficiency is improved.

[0068] In the water-saving device for reducing the droplets of the cooling tower disclosed in the embodiment of the present invention, the cold air conveyed by the fan to the air chamber flows out from the air holes of the hollow water collecting piece, cooling the hollow water collecting piece; a flow channel for the humid and hot air in the cooling tower is formed between adjacent hollow water collecting pieces. The humid and hot air in the cooling tower flows upward through this channel, and the flow path of the humid and hot air changes. Some of the droplets in the humid and hot air are condensed into water due to the lower temperature in this channel and flow back into the cooling tower. Another part of the droplets in the humid and hot air impacts the hollow water collecting piece under the action of inertia and is condensed into water and flows back into the cooling tower. The droplets in the humid and hot air decrease. The water-saving device for reducing the droplets of the cooling tower disclosed in the embodiment of the present invention has a simple structure, can effectively recover the droplets carried by the humid and hot air in the tower, improve the water collection efficiency, reduce the water consumption of the cooling tower, and has strong practicability.

[0069] The technical solutions disclosed in the present invention and the technical details disclosed in the embodiments are only exemplary explanations of the inventive concept of the present invention and do not constitute limitations on the technical solutions of the present invention. Any conventional changes, substitutions or combinations made to the technical details disclosed in the embodiments of the present invention have the same inventive concept as the present invention and are within the protection scope of the claims of the present invention.

Claims

1. A water-saving device for reducing dripping in a cooling tower, characterized in that: include: A water collecting assembly is arranged above the spraying device in the cooling tower; An air chamber adapted to be arranged on the outer wall of the cooling tower and used for conveying cold air to the water collecting assembly; A fan, arranged in communication with the air chamber, for providing cold air to the air chamber; Wherein, the water collecting component comprises: A support frame is adapted to be installed in the cooling tower, and its installation height is equivalent to the installation height of the air chamber; A hollow water-collecting sheet adapted to be arranged in the support frame; The hollow water-collecting sheet is in the shape of a rectangular parallelepiped as a whole; one end of the hollow water-collecting sheet is open and the other end is closed; the hollow water-collecting sheet is arranged horizontally, and the open end thereof is arranged to be connected to the air chamber; the upper surface of the hollow water-collecting sheet is provided with air holes; The hollow water-collecting sheets are arranged in multiple numbers at equal intervals, and a channel is formed between the left and right sides of adjacent hollow water-collecting sheets; The cold air delivered by the fan to the air chamber flows out from the air holes of the hollow water collecting plates to cool the hollow water collecting plates; the passages between adjacent hollow water collecting plates are circulation passages for the hot and humid air in the cooling tower.

2. The water-saving device for reducing dripping in a cooling tower according to claim 1, characterized in that: The water collecting components are provided in plurality, and the plurality of water collecting components are arranged at intervals in the vertical direction, and the channels of the upper and lower adjacent water collecting components correspond to each other.

3. The water-saving device for reducing dripping in a cooling tower according to claim 2, characterized in that: The water collecting components are provided with two.

4. The water-saving device for reducing dripping in a cooling tower according to claim 2, characterized in that: The distance between two adjacent water collecting components shall not be less than 0.5m.

5. The water-saving device for reducing dripping from a cooling tower according to any one of claims 1 to 4, characterized in that: The left and right side surfaces of the hollow water-receiving sheet are vertically arc-shaped surfaces.

6. The water-saving device for reducing dripping in a cooling tower according to claim 5, characterized in that: The arc-shaped surfaces of the hollow water-receiving sheets bulge in the same direction.

7. The water-saving device for reducing dripping in a cooling tower according to claim 5, characterized in that: The convex directions of the arc-shaped surfaces of the hollow water-collecting sheets of the upper and lower adjacent water-collecting assemblies are opposite.

8. The water-saving device for reducing dripping in a cooling tower according to claim 1, characterized in that: The hollow water-receiving sheet is detachably arranged.

9. The water-saving device for reducing dripping in a cooling tower according to claim 5, characterized in that: The arc surface of the hollow water-receiving sheet has an arc-shaped raised edge.

10. The water-saving device for reducing dripping in a cooling tower according to claim 9, characterized in that: The arc-shaped raised edge is located in the middle of the hollow water-receiving sheet.

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