Flow guide device for unilateral air inlet cooling tower

Abstract

The utility model discloses a flow guide device for a single-side air inlet cooling tower. The flow guide device comprises a plurality of flow guide components which are hung below a cooling tower filler and are opposite to an air inlet of the cooling tower, the multiple flow guide assemblies are sequentially arranged at intervals in the extending direction from the cooling tower air inlet to the interior of the cooling tower. Each flow guide assembly comprises a horizontally-arranged water collecting tank, and the direction of the water collecting tank is perpendicular to the arrangement direction of the multiple flow guide assemblies. The two ends of the water collecting tank are closed; the bottom edge of the guide plate is connected to the side edge, close to the air inlet of the cooling tower, of the water collecting tank, and the top edge inclines towards the air inlet of the cooling tower; the two flow guide pipes are respectively communicated with two ends of the water collecting tank; when the cooling tower works, the flow guide plate guides rising cold air to flow into the cooling tower, and falling cooling water is collected and guided into the water collecting tank. The flow guide device disclosed by the utility model can eliminate the vortex at the air inlet of the cooling tower, improve the wind speed flow field of the filler section in the tower and improve the heat exchange efficiency of the cooling tower.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling towers, and in particular relates to a flow guide device for a single-side air inlet cooling tower. Background Art

[0002] Cooling towers are generally composed of fillers, water collection tanks, exhaust facilities and air inlet guide devices. Cooling towers are widely used in air conditioning, petrochemical, metallurgical and electric power industries. Their function is to exchange heat between the medium with waste heat and the cold air in the tower, thereby reducing the temperature of the medium itself.

[0003] The existing air inlet guide device is set at the air inlet of the single-sided air inlet cooling tower, which cannot change the flow direction of the cold air entering the cooling tower. A vortex is easily formed at the air inlet, and the wind speed in the filler section is uneven, resulting in reduced air inlet cooling efficiency, large wind and water loss, and low heat exchange efficiency. Utility Model Content

[0004] In view of this, some embodiments disclose a flow guide device for a single-side air inlet cooling tower, comprising a plurality of flow guide components suspended below a cooling tower filler and opposite to an air inlet of the cooling tower; the plurality of flow guide components are sequentially spaced in a direction extending from the air inlet of the cooling tower toward the interior of the cooling tower;

[0005] The flow guide components include:

[0006] The water collecting trough is horizontally arranged, and the direction of the water collecting trough is perpendicular to the arrangement direction of the multiple flow guide components; the water collecting trough is open at the top and closed at both ends;

[0007] A guide plate, wherein the bottom edge of the guide plate is connected to the side of the water collecting tank close to the air inlet of the cooling tower, and the top edge of the guide plate is inclined toward the air inlet of the cooling tower;

[0008] A flow guide pipe, two of which are provided and are respectively connected to the two ends of the water collecting tank;

[0009] When the cooling tower is in operation, the guide plate guides the rising cold air entering from the air inlet of the cooling tower to the interior of the cooling tower, and collects and guides the falling cooling water into the water collection tank.

[0010] Some embodiments disclose a flow guide device for a single-side air inlet cooling tower, wherein a plurality of flow guide components are arranged at equal intervals from the air inlet of the cooling tower toward the middle of the cooling tower.

[0011] In some embodiments of the flow guide device for a single-side air inlet cooling tower, the plurality of flow guide components are suspended at different heights.

[0012] In some embodiments of the flow guide device for a single-side air inlet cooling tower, the hanging heights of the plurality of flow guide components are gradually reduced.

[0013] In some embodiments of the flow guide device for a single-side air inlet cooling tower, the top edge of the flow guide plate of the rear flow guide assembly is located at the same height as the top of the water collecting trough of the front flow guide assembly.

[0014] Some embodiments disclose a flow guide device for a single-side air inlet cooling tower, wherein the shape of the flow guide component is adapted to the internal shape of the cooling tower.

[0015] In some embodiments of the flow guide device for a single-side air inlet cooling tower, the water collecting tank gradually narrows from the top to the bottom of the water collecting tank.

[0016] Some embodiments disclose a flow guide device for a single-side air inlet cooling tower, wherein water retaining strips are provided on both ends of the flow guide plate.

[0017] Some embodiments disclose a flow guide device for a single-side air inlet cooling tower, wherein a splash-proof layer is coated on the flow guide plate.

[0018] Some embodiments disclose a flow guide device for a single-side air inlet cooling tower, wherein the flow guide pipe is square or circular.

[0019] The utility model discloses a flow guide device for a single-side air inlet cooling tower, which can eliminate vortices at the air inlet of the cooling tower, reduce noise at the air inlet of the cooling tower, improve the wind speed flow field of the filler section in the tower, improve the heat exchange efficiency of the cooling tower, and reduce the loss of cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Example 1 is a schematic diagram of the arrangement of a flow guide device for a single-side air inlet cooling tower;

[0021] Figure 2 Schematic diagram of the structure of the guide assembly of Example 1.

[0022] Reference numerals

[0023] 1. Diversion assembly 2. Sump

[0024] 3 guide plate 4 guide pipe

[0025] 100 Filler 200 Air Inlet

[0026] 300 Spraying device DETAILED DESCRIPTION

[0027] The word "embodiment" used here as an "exemplary" does not necessarily mean that any embodiment described is superior to or better than other embodiments. Unless otherwise specified, the performance index tests in the embodiments of this application are performed using conventional test methods in the art. It should be understood that the terms described in this application are only used to describe specific implementation methods and are not used to limit the content disclosed in this application.

[0028] Unless otherwise specified, the technical and scientific terms used in this document have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs; other experimental methods and technical means not specifically specified in this application refer to experimental methods and technical means commonly used by ordinary technicians in this field.

[0029] The terms "substantially" and "approximately" used herein are used to describe small 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%. The numerical data represented or presented in the range format herein are used only for convenience and brevity, and should therefore be flexibly interpreted as including not only the values ​​clearly listed as the limits of the range, but also all independent values ​​or sub-ranges contained in the range. For example, the numerical range of "1-5%" should be interpreted as including not only the clearly listed values ​​of 1% to 5%, but also the independent values ​​and sub-ranges within the range shown. Therefore, independent values ​​such as 2%, 3.5% and 4% and sub-ranges such as 1%-3%, 2%-4% and 3%-5% are included in this numerical range. This principle also applies to the range of only one numerical value. In addition, such an interpretation applies regardless of the width of the range or the characteristics described.

[0030] In this document, including in the claims, transitional words such as "comprises," "includes," "with," "having," "containing," "involving," "accommodating," etc. are understood to be open-ended, i.e., meaning "including but not limited to." Only the transitional words "consisting of" and "composed of" are closed transitional words.

[0031] In order to better illustrate the content of the present application, numerous specific details are provided in the specific examples below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In the embodiments, some methods, means, instruments, equipment, etc. well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0032] Under the premise of no conflict, the technical features disclosed in the embodiments of the present application can be arbitrarily combined, and the obtained technical solutions belong to the contents disclosed in the embodiments of the present application. It should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like mentioned in the present application indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the 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.

[0033] In some embodiments, a flow guide device for a single-side air inlet cooling tower includes a plurality of flow guide components suspended below a cooling tower filler and opposite to an air inlet of the cooling tower;

[0034] A plurality of flow guide components are arranged in sequence and at intervals in a direction extending from the air inlet of the cooling tower toward the interior of the cooling tower;

[0035] The flow guide components include:

[0036] The water collecting trough is horizontally arranged, and the direction of the water collecting trough is perpendicular to the arrangement direction of the multiple flow guide components; the water collecting trough is open at the top and closed at both ends;

[0037] Guide plate, the bottom edge of the guide plate is connected to the side of the water collecting trough close to the air inlet of the cooling tower, and the top edge of the guide plate is inclined toward the air inlet of the cooling tower; generally, the angle formed between the guide plate and the water collecting trough is greater than 90° and less than 180°, which is conducive to the cooling water naturally sliding into the water collecting trough; generally, the width of the guide plate is adapted to the width of the air inlet of the cooling tower, and the lower surface of the guide plate is relatively smooth, which is conducive to reducing the flow resistance of the cold air and allowing the cold air to smoothly enter the interior of the cooling tower;

[0038] A flow guide pipe, two of which are provided and are respectively connected to the two ends of the water collecting tank;

[0039] When the cooling tower is in operation, cold air enters from the air inlet of the cooling tower, the rising cold air is blocked by the guide plate, and flows along the lower surface of the guide plate from the bottom of the guide plate to the inside of the cooling tower. A plurality of guide plates arranged at intervals can disperse the cold air more evenly under the cooling tower filler and enter the filler, and disperse the cold air evenly in the filler, so that the effective heat exchange contact area between the cooling water and the cold air in the filler is increased, and the heat exchange efficiency of the cooling tower is improved; the cooling water falling from the filler above the guide assembly is collected from the guide plate and flows into the sump, and then flows from the guide pipe into the cooling tower sump, and a rain-free zone is formed in the cooling tower near the air inlet, which can reduce wind resistance, further facilitate a large amount of cold air to enter the interior of the cooling tower, and can also reduce the noise of falling water.

[0040] In some embodiments, a plurality of guide assemblies are arranged at equal intervals from the air inlet of the cooling tower toward the middle of the cooling tower, so that cold air can evenly enter the cooling tower filler.

[0041] As an optional implementation, the guide assembly is fixedly suspended below the cooling tower filler, and the guide assembly will not swing in the cooling tower due to the cold air flow.

[0042] In some embodiments, the plurality of guide assemblies are suspended at different heights. Generally, the suspension heights of the plurality of guide assemblies are adjusted according to the size and location of the cooling tower air inlet, so that the plurality of guide assemblies can guide the cold air entering from the cooling tower air inlet to the interior of the cooling tower as much as possible.

[0043] In some embodiments, the hanging heights of the multiple flow guide components are gradually reduced. Generally, the cold air flow entering the cooling tower from the upper part of the cooling tower air inlet is prone to form a dead wind zone and vortex near the upper part of the cooling tower air inlet; the cold air flow entering the cooling tower from the lower part of the cooling tower air inlet can flow a certain distance along the horizontal cooling tower under the action of inertia, but the flow rate of the cold air flow will gradually decrease, resulting in uneven wind speed flow field of the cooling tower filler cross section; therefore, the hanging heights of the multiple flow guide components set from the cooling tower air inlet to the middle position of the cooling tower are gradually reduced, which can avoid the formation of a dead wind zone near the upper part of the cooling tower air inlet in the cooling tower, avoid the formation of vortex, and improve the wind speed flow field of the cooling tower filler cross section, thereby ensuring the heat exchange efficiency of the filler and improving the performance of the cooling tower.

[0044] As an optional implementation, the guide assembly close to the air inlet of the cooling tower is suspended at a position at the same height as the upper part of the air inlet of the cooling tower.

[0045] In some embodiments, the top edge of the guide plate of the rear guide assembly is at the same height as the top of the water collecting trough of the front guide assembly, which can continuously guide a large amount of cold air flow into the interior of the cooling tower and make the cold air flow evenly distributed in the cooling tower.

[0046] In some embodiments, the shape of the flow guide assembly is adapted to the interior shape of the cooling tower.

[0047] In some embodiments, the water collecting tank is gradually narrowed from the top to the bottom of the water collecting tank, so that the cooling water in the water collecting tank can flow naturally and quickly from the guide pipe to the cooling tower water collecting tank.

[0048] In some embodiments, water retaining strips are provided on both ends of the guide plate to prevent cooling water from flowing out of the ends of the guide plate.

[0049] In some embodiments, the guide plate is coated with an anti-splash layer to prevent the cooling water from splashing out from the guide plate when it contacts the surface of the guide plate.

[0050] In some embodiments, the flow guide tube is square or circular.

[0051] In some embodiments, a wind shielding wall is provided on the side of the air inlet of the cooling tower to ensure the amount of cold air entering the cooling tower.

[0052] In some embodiments, an air guide plate is provided at the top of the air inlet of the cooling tower, which cooperates with the guide device to reduce the flow resistance of the cold air and allows the cold air to smoothly enter the interior of the cooling tower.

[0053] The technical details are further illustrated below in conjunction with embodiments.

[0054] Example 1

[0055] Figure 1 This is a schematic diagram of the arrangement of the flow guide device for a single-side air inlet cooling tower disclosed in Example 1; Figure 2 This is a schematic diagram of the structure of the guide assembly disclosed in Example 1.

[0056] like Figure 1 and Figure 2 As shown, the guide device for a single-side air inlet cooling tower includes five guide components 1 suspended from left to right in sequence below the filler 100 and opposite to the air inlet 200, and the suspension height of the five guide components 1 gradually decreases from left to right; wherein, the guide component 1 includes a water collecting trough 2, a guide plate 3 is obliquely arranged on the left side of the water collecting trough 2, an obtuse angle is formed between the guide plate 3 and the water collecting trough 2, and a guide pipe 4 is respectively arranged at both ends of the water collecting trough 2.

[0057] When the single-side air inlet cooling tower is working, cold air enters the cooling tower from the air inlet 200, and the five guide components 1 in the cooling tower evenly guide the cold air entering from different heights of the air inlet 200 into the interior of the cooling tower, and the cold air fully exchanges heat with the cooling water sprayed by the upper spray device 300 in the filler 100; the cooling water that falls after heat exchange in the left half of the filler 100 is collected from the guide plate 3 of the guide component 1 and flows into the water collecting trough 2, and then collected in the cooling tower water collecting pool through the guide pipe 4.

[0058] The utility model discloses a flow guide device for a single-side air inlet cooling tower, which can eliminate vortices at the air inlet of the cooling tower, reduce noise at the air inlet of the cooling tower, improve the wind speed flow field of the filler section in the tower, improve the heat exchange efficiency of the cooling tower, and reduce the loss of cooling water.

[0059] The technical solutions disclosed in the present utility model and the technical details disclosed in the embodiments are merely illustrative of the inventive concept of the present utility model and do not constitute a limitation on the technical solutions of the present utility model. Any conventional changes, replacements or combinations of the technical details disclosed in the embodiments of the present utility model have the same inventive concept as the present utility model and are within the protection scope of the claims of the present utility model.

Claims

1. A flow guide device for a single-side air inlet cooling tower, characterized in that: It comprises a plurality of flow guide components suspended below the cooling tower filler and opposite to the air inlet of the cooling tower; the plurality of flow guide components are sequentially spaced in a direction extending from the air inlet of the cooling tower toward the interior of the cooling tower; Wherein, the flow guide component comprises: A water collecting trough, which is horizontally arranged and whose direction is perpendicular to the arrangement direction of the plurality of flow guide components; the water collecting trough is open at the top and closed at both ends; A guide plate, wherein the bottom edge of the guide plate is connected to the side edge of the water collecting trough close to the air inlet of the cooling tower, and the top edge of the guide plate is inclined toward the air inlet of the cooling tower; A flow guide pipe, wherein two flow guide pipes are provided, and the two flow guide pipes are respectively connected to two ends of the water collecting tank; When the cooling tower is in operation, the guide plate guides the rising cold air entering from the air inlet of the cooling tower to flow into the interior of the cooling tower, and collects and guides the falling cooling water into the water collecting tank.

2. The flow guide device for a single-side air inlet cooling tower according to claim 1, characterized in that: The plurality of guide components are arranged at equal intervals from the air inlet of the cooling tower toward the middle position of the cooling tower.

3. The flow guide device for a single-side air inlet cooling tower according to claim 2, characterized in that: The plurality of guide assemblies are suspended at different heights.

4. The flow guide device for a single-side air inlet cooling tower according to claim 3, characterized in that: The hanging heights of the plurality of flow guide assemblies are gradually reduced.

5. The flow guide device for a single-side air inlet cooling tower according to claim 4, characterized in that: The top edge of the guide plate of the rear guide assembly is at the same height as the top of the water collecting trough of the front guide assembly.

6. The flow guide device for a single-side air inlet cooling tower according to claim 1, characterized in that: The shape of the flow guide component is adapted to the internal shape of the cooling tower.

7. The flow guide device for a single-side air inlet cooling tower according to claim 1, characterized in that: The water collection tank is gradually narrowed from the top to the bottom of the water collection tank.

8. The flow guide device for a single-side air inlet cooling tower according to claim 1, characterized in that: Water retaining strips are arranged on both ends of the guide plate.

9. The flow guide device for a single-side air inlet cooling tower according to claim 1, characterized in that: The guide plate is coated with an anti-splash layer.

10. The flow guide device for a single-side air inlet cooling tower according to claim 1, characterized in that: The flow guide pipe is square or circular.

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