Silence system for easy maintenance of cooling tower fans

Abstract

The utility model discloses a silencing system for facilitating the maintenance of a cooling tower fan, comprising: a first silencing assembly arranged above the fan and connected to the inner wall of the wind tube of the cooling tower, comprising: a first support frame, arranged and connected at the outlet of the wind tube; a second support frame, connected to the first support frame through a connecting rod, and having an opening corresponding to the position of the fan in the second support frame; a silencing module, arranged and connected between the first support frame and the second support frame; a second silencing assembly, detachably arranged in the opening, and comprising: a mounting frame, the mounting frame being detachably connected in the opening; a silencing module, arranged and connected in the mounting frame; a hook, fixed on the upper surface of the mounting frame, for loading / unloading the second silencing assembly. The silencing system disclosed by the utility model reduces the difficulty and cost of maintenance of the cooling tower fan without reducing the silencing effect, reduces the workload of operation and maintenance of the cooling tower, and has good economy.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling tower operation and maintenance, and in particular relates to a silencing system which is convenient for the maintenance of a cooling tower fan. Background Art

[0002] The cooling tower uses a fan to drive the air flow, so that the air and cooling water flow in the packing in the opposite direction to exchange heat. The cooled cooling water falls into the pool below the cooling tower, and the hot air is discharged from the outlet above the cooling tower. The cooling tower generally adopts the exhaust type, and the fan is installed above the water column of the cooling tower.

[0003] Due to the large water drop noise and fan noise in the cooling tower, a silencer system is usually required at the air inlet and outlet of the cooling tower. Usually, multiple silencer columns are installed at equal intervals at the fan outlet of the cooling tower as a silencer system. This setting method has a good silencer effect, but when the fan needs to be overhauled or the fan needs to be hoisted out as a whole for replacement, all the silencer columns at the outlet need to be removed, which is a large project with a high degree of difficulty and requires a lot of manpower and material resources. Utility Model Content

[0004] In view of this, some embodiments disclose a silencing system for facilitating the maintenance of a cooling tower fan, comprising:

[0005] The first silencer assembly is arranged above the fan and connected to the inner wall of the wind tube of the cooling tower; the first silencer assembly includes:

[0006] A first support frame is arranged and connected to the outlet of the air duct;

[0007] A second support frame is connected to the first support frame through a connecting rod, and the second support frame has an opening corresponding to the position of the fan;

[0008] A noise reduction module is arranged and connected between the first support frame and the second support frame;

[0009] The second muffler assembly is detachably disposed in the opening of the second support frame, and the second muffler assembly includes:

[0010] A mounting frame, the mounting frame being detachably connected to the opening of the second support frame;

[0011] A silencer module is arranged and connected in the installation frame;

[0012] A hook is fixed on the upper surface of the mounting frame and is used for installing / uninstalling the second silencer assembly.

[0013] Some embodiments disclose a silencer system for facilitating the maintenance of a cooling tower fan, wherein the opening is in a square or circular shape.

[0014] Some embodiments disclose a silencer system for facilitating the maintenance of a cooling tower fan, wherein the silencer module includes a plurality of silencer columns arranged at regular intervals.

[0015] Some embodiments disclose a silencer system that facilitates the maintenance of a cooling tower fan, wherein a plurality of hooks are provided, and the plurality of hooks are symmetrically distributed on the upper surface of the installation frame.

[0016] Some embodiments disclose a silencer system for facilitating the maintenance of a cooling tower fan, wherein the mounting frame is adapted to the opening.

[0017] Some embodiments disclose a silencer system for facilitating the maintenance of a cooling tower fan, wherein the bottom of the opening is provided with an annular flange extending along the middle of the opening, and the inner diameter of the annular flange is larger than the inner diameter of the silencer module and smaller than the inner diameter of the mounting frame.

[0018] Some embodiments disclose a silencer system for facilitating the maintenance of a cooling tower fan, wherein threaded holes are adapted to be opened on the annular flange and the mounting frame.

[0019] Some embodiments disclose a silencer system for facilitating the maintenance of a cooling tower fan, wherein a silencer sheet is provided on the second support frame.

[0020] The utility model discloses a silencer system for facilitating the maintenance of a cooling tower fan. By disassembling the second silencer assembly to maintain the fan, the difficulty and cost of maintaining the cooling tower fan are reduced without reducing the silencer effect, and the workload of operating and maintaining the cooling tower is reduced, thereby having good economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Embodiment 1 A silencing system for facilitating the maintenance of a cooling tower fan;

[0022] Figure 2 A schematic structural diagram of the first muffler assembly of Example 1;

[0023] Figure 3 A schematic structural diagram of the second muffler assembly of Example 1;

[0024] Figure 4 A partial schematic diagram of the second support frame of Example 2.

[0025] Reference numerals

[0026] 1 First silencer assembly 2 Second silencer assembly

[0027] 11 first support frame 12 second support frame

[0028] 13 Connecting rod 14 Silencer module

[0029] 15 opening 16 annular flange

[0030] 21 Mounting frame 23 Hook DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] In some embodiments, a sound attenuation system for facilitating cooling tower fan maintenance includes:

[0038] The first silencer assembly is arranged above the fan and connected to the inner wall of the wind tube of the cooling tower; usually, a wind tube is arranged above the cooling tower, the inlet of the wind tube is arranged to be connected to the cooling tower, the outlet of the wind tube serves as an outlet for cooling air, and a fan is arranged in the wind tube to send cooling air out from the outlet above the wind tube; the first silencer assembly includes:

[0039] A first support frame is arranged and connected to the outlet of the air duct;

[0040] The second support frame is connected to the first support frame through a connecting rod, and the second support frame has an opening corresponding to the position of the fan; usually, a plurality of connecting rods are provided, and the plurality of connecting rods also serve as structural reinforcement components for enhancing the connection stability between the first support frame and the second support frame; generally, the opening is located directly above the fan, and its size can meet the minimum area required for fan maintenance;

[0041] A noise reduction module is arranged and connected between the first support frame and the second support frame;

[0042] The second muffler assembly is detachably arranged in the opening of the second support frame. When repairing the fan, it is only necessary to remove the second muffler assembly arranged in the opening, and repair the fan through the opening without removing the entire muffler system. The second muffler assembly includes:

[0043] A mounting frame, the mounting frame being detachably connected to the opening of the second support frame;

[0044] The silencer module is arranged and connected in the installation frame to form a whole with the installation frame;

[0045] The hook is fixed on the upper surface of the installation frame and is used to install / uninstall the second muffler assembly. Generally, when installing / uninstalling the second muffler assembly, it is not necessary to install / uninstall the installation frame and the muffler module separately. It is only necessary to connect the crane device to the hook on the installation frame and hoist it through the crane device to realize the overall installation / uninstallation of the second muffler assembly.

[0046] In some embodiments, the opening is square or circular in shape.

[0047] In some embodiments, the shape and size of the mounting frame are adapted to the opening.

[0048] In some embodiments, the muffler module includes a plurality of muffler columns arranged at regular intervals. Generally, the muffler columns are arranged according to the shape and size of the installable space to ensure the muffler effect of the muffler module.

[0049] In some embodiments, a plurality of hooks are provided, and the plurality of hooks are symmetrically distributed on the upper surface of the installation frame to avoid safety problems caused by uneven force when hoisting the second silencer assembly.

[0050] In some embodiments, the bottom of the opening is provided with an annular flange extending along the middle position of the opening, and the inner diameter of the annular flange is larger than the inner diameter of the muffler module and smaller than the inner diameter of the mounting frame. When the second muffler assembly is installed in the opening, the mounting frame is located on the annular flange, and the muffler module in the mounting frame passes through the middle position of the annular flange.

[0051] In some embodiments, threaded holes are adapted to be opened on the annular flange and the mounting frame. When the mounting frame is adapted to be mounted on the annular flange, the threaded holes on the annular flange and the mounting frame are aligned, and screws are set in the threaded holes and tightened to reinforce the second muffler assembly set in the opening by threaded connection.

[0052] In some embodiments, a sound-absorbing sheet is provided on the second support frame to prevent noise from being transmitted from the gap between the first sound-absorbing component and the second sound-absorbing component, thereby avoiding reducing the sound-absorbing effect.

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

[0054] Example 1

[0055] Figure 1 It is a schematic diagram of the structure of the silencing system for facilitating the maintenance of the cooling tower fan disclosed in Example 1; Figure 2 This is a schematic structural diagram of the first muffler assembly disclosed in Example 1; Figure 3 This is a schematic diagram of the structure of the second silencer assembly disclosed in Example 1.

[0056] like Figures 1 to 3As shown, the silencing system for facilitating the maintenance of the cooling tower fan includes a first silencing component 1 and a second silencing component 2 arranged in the first silencing component 1;

[0057] Among them, the first silencer assembly 1 includes a square first support frame 11; a square second support frame 12 arranged in the middle position of the first support frame 11; six connecting rods 13 are arranged to connect the first support frame 11 and the second support frame 12, wherein four connecting rods are respectively vertically connected to the edges corresponding to the first support frame 11 at the four vertex positions of the second support frame 12, and two connecting rods are vertically connected to the edges corresponding to the first support frame 11 from the middle of the left and right sides of the second support frame 12, and silencer modules 14 are evenly arranged between the first support frame 11 and the second support frame 12; an opening 15 is provided in the middle of the second support frame 12, and the size of the opening 15 can meet the minimum area required for fan maintenance, and the opening 15 is used to detachably set the second silencer assembly 2;

[0058] Among them, the second silencer assembly 2 includes a square installation frame 21, a silencer module 14 fixedly connected to the installation frame 21, and hooks 23 arranged at the four top corners of the installation frame 21; generally, the second silencer assembly 2 is hoisted in the opening 15 by connecting the hooks 23 with a crane.

[0059] Example 2

[0060] Figure 4 This is a partial schematic diagram of the second support frame disclosed in Example 2.

[0061] An annular flange 16 extending along the middle position of the opening is provided in the opening of the second support frame 12, near the bottom of the second support frame 12, and the second silencer assembly is installed in the second support frame 12 through the annular flange 16; generally, when the second silencer assembly is set in the second support frame 12, the mounting frame in the second silencer assembly is located on the annular flange 16, and the silencer module in the second silencer assembly extends downward from the opening in the middle of the annular flange 16.

[0062] The utility model discloses a silencer system for facilitating the maintenance of a cooling tower fan. By disassembling the second silencer assembly to maintain the fan, the difficulty and cost of maintaining the cooling tower fan are reduced without reducing the silencer effect, and the workload of operating and maintaining the cooling tower is reduced, thereby having good economy.

[0063] 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 silencer system that facilitates the maintenance of cooling tower fans, characterized in that: include: A first silencer assembly, which is arranged above the fan and connected to the inner wall of the air duct of the cooling tower; The first muffler assembly comprises: A first support frame is arranged and connected to the outlet of the air duct; A second support frame, connected to the first support frame via a connecting rod, wherein the second support frame has an opening corresponding to the position of the fan; A noise reduction module, arranged and connected between the first support frame and the second support frame; The second muffler assembly is detachably disposed in the opening of the second support frame, and the second muffler assembly includes: a mounting frame, the mounting frame being detachably connected to the opening of the second support frame; A muffler module, arranged and connected to the installation frame; A hook is fixed on the upper surface of the installation frame and is used for installing / uninstalling the second silencer assembly.

2. The silencing system for facilitating the maintenance of cooling tower fans according to claim 1 is characterized in that: The shape of the opening is square or circular.

3. The silencing system for facilitating the maintenance of cooling tower fans according to claim 1 is characterized in that: The noise reduction module includes a plurality of noise reduction columns arranged at regular intervals.

4. The silencing system for facilitating the maintenance of cooling tower fans according to claim 1 is characterized in that: A plurality of the hooks are provided, and the plurality of the hooks are symmetrically distributed on the upper surface of the installation frame.

5. The silencing system for facilitating the maintenance of cooling tower fans according to claim 1 is characterized in that: The installation frame is adapted to the opening.

6. The silencing system for facilitating the maintenance of cooling tower fans according to claim 1, characterized in that: The bottom of the opening is provided with an annular flange extending along the middle position of the opening, and the inner diameter of the annular flange is larger than the inner diameter of the muffler module and smaller than the inner diameter of the installation frame.

7. The silencing system for facilitating the maintenance of cooling tower fans according to claim 6, characterized in that: The annular flange and the installation frame are adapted to be provided with threaded holes.

8. The silencing system for facilitating the maintenance of cooling tower fans according to claim 1, characterized in that: The second support frame is provided with a sound-absorbing sheet.

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