Axial flow fan damping base convenient to disassemble and assemble

Abstract

The axial flow fan damping base convenient to disassemble and assemble comprises a vertically-arranged base body, the top of the base body is used for being connected with a deck, and the bottom of the base body is used for installing an axial flow fan; the base body comprises at least two parts, the two parts are fixedly connected with the deck and the axial flow fan respectively, and the two parts are detachably connected. Through clearance limitation between the angle steel and the rubber shock pad, the maximum elastic allowance is ensured, reliable fixing of the fan is met, and the shock absorption and noise reduction effects are effectively achieved. By designing flexible connection, vibration transmitted by the air pipe is removed, and the base is in bolted connection, so that disassembly and inspection are facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of ship ventilation systems, and in particular relates to a shock-absorbing base for an axial flow fan that is convenient for disassembly and assembly. Background Art

[0002] In ship ventilation systems, axial flow fans are used frequently for mechanical ventilation because of their good ventilation effects, multiple models, strong selectivity, small size at the same air volume, easy layout, and applicability to various places. The installation type usually adopts a clamp type or a hoisting type, which is only suitable for small fans below DN600mm. For larger axial flow fans exceeding DN600mm, the previous fixing method has a low center of gravity and large vibration for the fan base, which has disadvantages for ships with high noise requirements and cannot effectively reduce vibration and noise and prevent shaking. In the past, fans were connected to the duct flange with bolts. When dismantling and inspecting in the future, the connected duct and bracket need to be removed together to remove the fan. Summary of the invention

[0003] In order to solve the technical problems existing in the prior art, the present invention provides a convenient disassembly and assembly of an axial flow fan shock-absorbing base, comprising a vertically arranged base body, the top of the base body is used to connect the deck, and the bottom of the base body is used to install the axial flow fan;

[0004] The base body includes at least two parts, which are respectively fixedly connected to the deck and the axial flow fan, and the two parts are detachably connected.

[0005] Further, the base body includes a first component, and the first component includes four angle steels vertically connected to the bottom of the deck;

[0006] The lower end of the first component is connected to the second component by bolts and nuts, and the second component includes four angle steels corresponding to the first component; the bottoms of the four angle steels of the second component are connected to a base plate, and the axial flow fan is fixedly installed on the base plate.

[0007] Furthermore, a shock-absorbing pad is provided between the axial flow fan and the base plate.

[0008] Furthermore, a connecting surface parallel to the bottom plate is provided on the body of the axial flow fan, and the connecting surface and the bottom plate are connected by bolts and nuts; the shock-absorbing pad is arranged between the connecting surface and the bottom plate.

[0009] Furthermore, the base body is provided with flexible connections corresponding to the air inlet end and the air outlet end of the axial flow fan, and the axial flow fan is connected to the air ducts at both ends through the flexible connections.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The invention is practical and reliable, and solves the vibration problem of horizontal installation of large axial flow fans; the installation is simple, and only four supporting angle steels need to be welded to the hull; the soft connection is used to prevent vibration transmission, and effectively reduce shock and noise; the rubber shock-absorbing pad is used to effectively achieve the shock-absorbing and noise-reducing effect; the invention has strong applicability, versatility and wide practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the structural front view of the present invention (with soft connection);

[0013] Figure 2 It is a side view of the structure of the present invention (without flexible connection). DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Reference Figure 1 and Figure 2 The convenient disassembly and assembly of the axial flow fan shock-absorbing base proposed in this application includes parts 1, 2, 3 and 4:

[0016] Item 1 consists of four vertical support angles welded to the underside of the hull deck;

[0017] Component 2 includes four structural angle steels corresponding to component 1. The bottom ends of the four structural angle steels are welded with bottom plates for installing axial flow fans. Several horizontal angle steels are welded between the four structural angle steels for reinforcement.

[0018] Component 3 is a rubber shock-absorbing pad, component 4 is welded to the fan body, and component 3 is connected to component 4 and component 2 through bolts and nuts.

[0019] Items 1 and 2 can be made in the shipyard, and items 3 and 4 are supplied by the fan manufacturer together with the fan. Both ends of the fan are equipped with soft connections for shock absorption, and the soft connections are adjustable, which solves the problem of duct modifications caused by installation errors.

[0020] The fan and fan base can be removed as a whole except for part 1 at the bolt and nut connection. Figure 1 For the air ducts at both ends, you only need to remove the flexible connection bolts and nuts at the fan flange connection end.

[0021] The invention ensures the maximum elastic margin by limiting the gap between the angle steel and the rubber shock-absorbing pad, satisfies the reliable fixation of the fan, and effectively achieves the effect of shock absorption and noise reduction. The vibration transmitted by the air duct is removed by designing a soft connection, and the base is designed with bolt connection for easy disassembly and inspection.

[0022] In summary, the above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereto. All equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification are within the scope covered by the patent of the present invention.

Claims

1. A vibration-absorbing base for an axial flow fan that is convenient for disassembly and assembly, characterized in that: It comprises a vertically arranged base body, the top of the base body is used to connect the deck, and the bottom of the base body is used to install the axial flow fan; The base body includes at least two parts, which are respectively fixedly connected to the deck and the axial flow fan, and the two parts are detachably connected.

2. The base according to claim 1, characterized in that: The base body includes a first component, which includes four angle steels vertically connected below the deck; The lower end of the first component is connected to the second component by bolts and nuts, and the second component includes four angle steels corresponding to the first component; the bottoms of the four angle steels of the second component are connected to a base plate, and the axial flow fan is fixedly installed on the base plate.

3. The base according to claim 2, characterized in that: A shock-absorbing pad is provided between the axial flow fan and the bottom plate.

4. The base according to claim 3, characterized in that: The main body of the axial flow fan is provided with a connection surface parallel to the bottom plate, and the connection surface and the bottom plate are connected by bolts and nuts; the shock-absorbing pad is arranged between the connection surface and the bottom plate.

5. The base according to claim 1, characterized in that: The base body is provided with flexible connections at the air inlet end and the air outlet end corresponding to the axial flow fan, and the axial flow fan is connected to the air ducts at both ends through the flexible connections.

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