CN112576549B - Horizontal mounting structure and method for axial flow fan for ship - Google Patents
Horizontal mounting structure and method for axial flow fan for ship Download PDFInfo
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- CN112576549B CN112576549B CN202011394217.7A CN202011394217A CN112576549B CN 112576549 B CN112576549 B CN 112576549B CN 202011394217 A CN202011394217 A CN 202011394217A CN 112576549 B CN112576549 B CN 112576549B
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- axial flow
- flow fan
- air duct
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- air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
- F04D29/646—Mounting or removal of fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a horizontal mounting structure of an axial flow fan for a ship and a mounting method thereof. The invention can improve the installation and positioning precision of the axial flow fan, ensure that the axial flow fan is installed in the subsection assembling process, and greatly improve the integrity of the ship building intermediate product.
Description
Technical Field
The invention relates to the technical field of ship construction, in particular to a horizontal mounting structure of a ship axial flow fan and a mounting method thereof.
Background
The marine axial flow fan is widely applied to large cabin ventilation systems such as cabins and loading cabins due to high air volume and small pressure head, the fan is mostly arranged in a structural air duct, and the installation type mainly comprises horizontal installation and vertical installation.
In the past ship construction, when the fan is rigidly installed, the air pipe installed at the air inlet end of the fan is a folding pipe manufactured on site. After the fan is accurately positioned, the size of the folded pipe is mapped and drawn again, the air pipe and the fan cannot be pre-embedded and pre-assembled together in the building mode, the air pipe needs to be re-perforated to enter the cabin, the integrity of the product in the middle of building is poor, and the construction efficiency is low.
Disclosure of Invention
In view of the above, the present invention provides a horizontal mounting structure for a marine axial flow fan and a mounting method thereof, so as to solve the problems in the background art.
A horizontal installation structure of an axial flow fan for a ship comprises a fan base arranged in an air duct, the axial flow fan arranged on the fan base and an air pipe arranged on a tuyere flange of the axial flow fan, wherein a light surrounding wall is arranged on the inner wall of the air duct, the light surrounding wall is arranged on one side of the axial flow fan, the air pipe penetrates through the light surrounding wall and is fixed with the light surrounding wall through an installation seat plate, an air pipe flange fixed with the tuyere flange of the axial flow fan is arranged at the end part of the air pipe,
the sealing structure is characterized in that a compressible sealing material with a hole inside is arranged between the air pipe flange and the air port flange, a plurality of sealing grooves are formed in the butt joint surface of the air pipe flange and the butt joint surface of the air port flange along the radial direction, and the sealing grooves in the air pipe flange, the hole inside the sealing material and the sealing grooves in the corresponding positions on the air port flange jointly form a sealing cavity.
Preferably, the sealing grooves on the air pipe flange and the air port flange are both discontinuous annular grooves.
Preferably, the sealing grooves on the air pipe flange and the air port flange are both conical grooves, arc-shaped grooves or rectangular grooves.
A horizontal mounting structure of an axial flow fan for a ship comprises a fan base arranged in an air duct, the axial flow fan arranged on the fan base and an air pipe arranged on a tuyere flange of the axial flow fan, wherein a light surrounding wall is arranged on the inner wall of the air duct, the light surrounding wall is arranged on one side of the axial flow fan, the air pipe passes through the light surrounding wall and is fixed with the light surrounding wall through a mounting base plate, the end part of the air pipe is provided with an air pipe flange fixed with the tuyere flange of the axial flow fan,
the sealing structure is characterized in that a compressible sealing material with a hole inside is arranged between the air pipe flange and the air port flange, a plurality of circles of sealing grooves are formed in the butt joint surface of the air pipe flange along the radial direction, a protruding structure extends outwards from the butt joint surface of the air port flange, and the protruding structure compresses one side of the sealing material so that the other side of the sealing material is embedded into the sealing groove.
Preferably, the sealing grooves on the air pipe flanges are all discontinuous annular grooves.
Preferably, the sealing grooves on the air pipe flanges are conical grooves, arc-shaped grooves or rectangular grooves.
Preferably, the mounting seat plate is of a ring structure.
Preferably, a rubber pad is further arranged between the bottom of the axial flow fan and the fan base.
Preferably, the sealing material is a closed-cell rubber-plastic sponge plate gasket with the thickness not less than 10mm, and an adhesive layer is arranged on one end face of the sealing material.
A mounting method of a horizontal mounting structure of a marine axial flow fan specifically comprises the following steps:
s1, installing a light surrounding wall on the inner wall of the air duct according to a design drawing in a sectional manufacturing stage of the air duct structure;
s2, in the subsection assembling stage of the air duct structure, a fan base is installed in the air duct in advance, and an axial flow fan and an air pipe are embedded in the air duct structure in advance;
s3, pre-installing the axial flow fan on a fan base, projecting the center of a cylinder of the axial flow fan on the light surrounding wall by using a total station, and forming a fixing hole on the light surrounding wall by taking a projection point as a circle center, wherein the aperture of the fixing hole is at least 20mm larger than the outer diameter of the air pipe;
and S4, fixing one end of the air pipe at the air port of the axial flow fan, locking and fixing the axial flow fan and the fan base, and simultaneously enabling the other end of the air pipe to penetrate through the fixing hole and be fixed with the light enclosure wall through the mounting base plate.
The invention has the beneficial effects that:
1. the invention has simple structure and convenient operation, and the light surrounding wall is arranged on the inner wall of the air duct, and the air duct can be quickly installed in place by utilizing the light surrounding wall, thereby improving the installation and positioning precision of the axial flow fan, ensuring that the axial flow fan is installed in the segmented assembly process, and greatly improving the integrity of the intermediate product of ship construction.
2. The air pipe and the light enclosing wall are connected by the installation seat plate, the air pipe (folded pipe) does not need to be manufactured on site, the air pipe preset in advance is directly installed on the fan, and meanwhile, because the outer diameter of the installation seat plate is about 40mm larger than the fixed hole, if the air pipe is not coaxial with the opening center of the light enclosing wall due to installation deviation of the fan in the height direction (for example, a rubber pad generates micro deformation when the fan is installed on a fan base), the air pipe can be adjusted by moving the installation seat plate up and down.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view showing the connection of a tuyere flange and a blast pipe flange according to an embodiment.
Fig. 2 is an end view of a duct flange or tuyere flange.
FIG. 3 is a schematic view showing the connection between the duct flange and the tuyere flange in the second embodiment.
Fig. 4 is a schematic view of a horizontal mounting structure of an axial flow fan.
Fig. 5 is an enlarged view of a portion a in fig. 4.
The designations in the figures mean:
the air duct structure comprises an air duct 1, an air duct flange 2, an air port flange 3, a sealing material 4, a sealing groove 5, a bulge structure 6, an axial flow fan 7, a fan base 8, a rubber pad 9, an installation seat plate 10, a light enclosure wall 11 and an air duct 12.
Detailed Description
In order to better understand the technical scheme of the invention, the following detailed description of the embodiments of the invention is made with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present application is described in further detail below by way of specific embodiments in conjunction with the following figures.
The invention provides a horizontal mounting structure and a horizontal mounting method of a marine axial flow fan. The invention has simple structure and convenient operation, and the light surrounding wall is arranged on the inner wall of the air duct, and the air duct can be quickly installed in place by utilizing the light surrounding wall, thereby improving the installation and positioning precision of the axial flow fan, ensuring that the axial flow fan is installed in the process of structural segmentation or segmentation total assembly, and greatly improving the integrity of intermediate products for ship construction.
In a first embodiment, the horizontal mounting structure of the axial flow fan for the ship in this embodiment includes a fan base 8 installed in the air duct, an axial flow fan 7 installed on the fan base 8, and an air duct 1 installed on an air port flange 3 of the axial flow fan 7.
A rubber pad 9 is further arranged between the bottom of the axial flow fan 7 and the fan base 8, and the thickness of the rubber pad 9 is about 10 mm.
The air duct is characterized in that a light surrounding wall 11 is installed on the inner wall of the air duct 12, the light surrounding wall 11 is arranged on one side of the axial flow fan 7 and is fixed with the air duct 1 through an installation seat plate 10, and an air duct flange 2 fixed with an air port flange 3 of the axial flow fan 7 is arranged at the end of the air duct 1.
Be provided with compressible inside between tuber pipe flange 2 and the wind gap flange 3 and have sealing material 4 in hole, all seted up many rings seal groove 5 along radial direction on the butt joint face of tuber pipe flange 2 and the butt joint face of wind gap flange, the seal groove on the tuber pipe flange 2 and the sealing material 4 inside hole and the seal groove of corresponding position on the wind gap flange 3 constitute sealed chamber jointly.
In this embodiment, air pipe flange 2 and tuyere flange 3 are the band steel flange, and the cross-section of two ring flanges can be designed into circularly according to the tuber pipe shape, and the thickness of ring flange is 8mm, can fix through the single face welding between ring flange and the tuber pipe, also can fix through two-sided welding, if fix through two-sided welding, then a side of welding seam is for continuous welding, another side is for intermittent welding, can alleviate the deflection of welding position department tuber pipe structure like this.
The upper limit of the roughness of the abutting surfaces of the air duct flange 2 and the tuyere flange 3 is 12.5 μm, and the upper limit of the roughness of the remaining end surfaces is 25 μm.
The sealing grooves on the air pipe flange 2 and the air port flange 3 are conical grooves, arc-shaped grooves or rectangular grooves. The sealing material 4 is a closed-cell rubber-plastic sponge plate gasket with the thickness not less than 10mm, and an adhesive layer is arranged on one end face of the sealing material 4.
Preferably, the sealing grooves on the air pipe flange 2 and the air port flange 3 are all discontinuous annular grooves.
The manufacturing size of the air pipe flange meets the requirements: the diameter of the outer edge of the circular air pipe is d, the diameter of the inner side of the corresponding flange plate is d +3mm, the diameter of the outer side of the flange plate is d +80, the center distance of screw holes of the flange plate is d +60, the number n of the bolt holes is at least 4 and is even, and the distance t3 between every two adjacent screw holes is preferably controlled to be 90-120 mm.
When the horizontal mounting structure of the axial flow fan for the ship is mounted, the horizontal mounting structure specifically comprises the following steps:
s1, installing a light surrounding wall on the inner wall of the air duct according to a design drawing in a sectional manufacturing stage of the air duct structure; .
The air duct structure is formed by folding and assembling a plurality of structural sections, and when the structural sections are built, light surrounding walls are directly arranged on the inner wall of the air duct of the structural sections.
And S2, after all the structural sections of the air duct structure are built, the structural sections can be assembled.
In the stage of subsection assembly of the air duct structure, the fan base is installed in the air duct in advance, and the axial flow fan and the air pipe are embedded in the air duct structure in advance.
The air pipe is manufactured in advance, and when the fan is installed, field manufacturing is not needed.
S3, pre-installing the axial flow fan 7 on the fan base 8, wherein a rubber pad 9 is arranged between the axial flow fan 7 and the fan base 8, and the thickness of the rubber pad 9 is about 10 mm.
And then, projecting the center of a cylinder of the axial flow fan on the light surrounding wall by using a total station, and forming a fixing hole on the light surrounding wall by taking the projection point as the circle center, wherein the hole diameter of the fixing hole is at least 20mm larger than the outer diameter of the air pipe.
And S4, fixing one end of the air pipe 1 at an air port of the axial flow fan 7, locking and fixing the axial flow fan and the fan base, and simultaneously enabling the other end of the air pipe 1 to penetrate through the fixing hole and be fixed with the light surrounding wall 11 through the installation seat plate 10.
The installation seat plate 10 is of an annular structure, the inner diameter of the installation seat plate 10 is about 3mm larger than the outer diameter of the air pipe 1, the outer diameter of the installation seat plate 10 is about 60mm larger than the outer diameter of the air pipe 1, and the outer diameter of the installation seat plate 10 is about 40mm larger than the fixed hole.
When linking to each other tuber pipe 1 through installation bedplate 10 and light leg 11, earlier install bedplate 10 cover at 1 tip of tuber pipe, then will install bedplate 10 and light leg 11 spot welding fixed, will install bedplate 10 and tuber pipe 1 boxing link again, at last, will install bedplate 10 and light leg 11 and carry out continuous boxing.
In the second embodiment, the horizontal mounting structure of the axial flow fan for the ship in the present embodiment is basically the same as the first embodiment, and specifically, the horizontal mounting structure of the axial flow fan for the ship comprises a fan base 8 installed in an air duct 1, an axial flow fan 7 installed on the fan base 8, and an air duct 1 installed on a tuyere flange 3 of the axial flow fan 7, a light surrounding wall 11 is installed on the inner wall of the air duct 1, the light surrounding wall 11 is arranged on the air inlet side of the axial flow fan 7 and fixed to the air duct 1 through an installation seat plate 10, an air duct flange 2 fixed to the tuyere flange 3 of the axial flow fan 7 is arranged at the end of the air duct 1,
be provided with compressible inside sealing material 4 that has the hole between tuber pipe flange 2 and the wind gap flange 3, seted up many rings seal groove 5 along radial direction on the butt joint face of tuber pipe flange 2, it has protruding structure 6 to extend outward on the butt joint face of wind gap flange 3, thereby protruding structure 6 compresses tightly one side of sealing material 4 makes in the opposite side embedding seal groove 5 of sealing material 4.
Other specific embodiments are the same as the first embodiment, and detailed description thereof is omitted.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The mounting method of the horizontal mounting structure of the axial flow fan for the ship is characterized by comprising the following steps:
s1, installing a light surrounding wall on the inner wall of the air duct according to a design drawing in a sectional manufacturing stage of the air duct structure;
s2, in the segmented assembly stage of the air duct structure, a fan base is pre-installed in the air duct, an axial flow fan and an air duct are pre-embedded in the air duct structure, a light surrounding wall is arranged on one side of the axial flow fan, an air duct flange fixed with a tuyere flange of the axial flow fan is arranged at the end of the air duct, a compressible sealing material with a hole inside is arranged between the air duct flange and the tuyere flange, a plurality of sealing grooves are formed in the butt joint surface of the air duct flange and the butt joint surface of the tuyere flange along the radial direction, and a sealing cavity is formed by the sealing groove on the air duct flange, the hole inside the sealing material and the sealing groove in the corresponding position on the tuyere flange;
s3, pre-installing the axial flow fan on a fan base, projecting the center of a cylinder of the axial flow fan on the light surrounding wall by using a total station, and forming a fixing hole on the light surrounding wall by taking a projection point as a circle center, wherein the aperture of the fixing hole is at least 20mm larger than the outer diameter of the air pipe;
s4, fixing one end of the air pipe at an air port of the axial flow fan, locking and fixing the axial flow fan and the fan base, and meanwhile, enabling the other end of the air pipe to penetrate through the fixing hole and be fixed with the light surrounding wall through the mounting base plate.
2. The mounting method of the horizontal mounting structure of the axial flow fan for the ship according to claim 1, wherein the sealing grooves on the air pipe flange and the air port flange are both discontinuous annular grooves.
3. The mounting method of the horizontal mounting structure of the marine axial flow fan according to claim 1 or 2, wherein the sealing grooves on the air pipe flange and the air port flange are both conical grooves, arc-shaped grooves or rectangular grooves.
4. The mounting method of the horizontal mounting structure of the axial flow fan for the ship is characterized by comprising the following steps:
s1, in a sectional manufacturing stage of an air duct structure, installing a light surrounding wall on the inner wall of an air duct according to a design drawing;
s2, in the segmented assembly stage of the air duct structure, a fan base is installed in the air duct in advance, an axial flow fan and an air duct are embedded in the air duct structure, a light surrounding wall is arranged on one side of the axial flow fan, an air duct flange fixed with a tuyere flange of the axial flow fan is arranged at the end part of the air duct, a compressible sealing material with a hole inside is arranged between the air duct flange and the tuyere flange, a plurality of circles of sealing grooves are formed in the butt joint surface of the air duct flange along the radial direction, a protruding structure extends outwards from the butt joint surface of the tuyere flange, and the protruding structure compresses one side of the sealing material so that the other side of the sealing material is embedded into the sealing groove;
s3, pre-installing the axial flow fan on a fan base, projecting the center of a cylinder of the axial flow fan on the light surrounding wall by using a total station, and forming a fixing hole on the light surrounding wall by taking a projection point as a circle center, wherein the aperture of the fixing hole is at least 20mm larger than the outer diameter of the air pipe;
s4, fixing one end of the air pipe at an air port of the axial flow fan, locking and fixing the axial flow fan and the fan base, and meanwhile, enabling the other end of the air pipe to penetrate through the fixing hole and be fixed with the light surrounding wall through the mounting base plate.
5. The mounting method of the horizontal mounting structure of the axial flow fan for the ship according to claim 4, wherein the sealing grooves on the air pipe flanges are all discontinuous annular grooves.
6. The mounting method of the horizontal mounting structure of the marine axial flow fan according to claim 4 or 5, wherein the sealing grooves on the air pipe flanges are all conical grooves, arc-shaped grooves or rectangular grooves.
7. The method for installing the horizontal installation structure of the axial flow fan for the ship according to claim 1 or 4, wherein the installation seat plate is of an annular structure.
8. The installation method of the horizontal installation structure of the axial flow fan for the ship according to claim 1 or 4, wherein a rubber pad is further arranged between the bottom of the axial flow fan and the fan base.
9. The mounting method of the horizontal mounting structure of the axial flow fan for the ship according to claim 1 or 4, wherein the sealing material is a closed-cell rubber-plastic sponge plate gasket with the thickness not less than 10mm, and an adhesive layer is arranged on one end surface of the sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011394217.7A CN112576549B (en) | 2020-12-03 | 2020-12-03 | Horizontal mounting structure and method for axial flow fan for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011394217.7A CN112576549B (en) | 2020-12-03 | 2020-12-03 | Horizontal mounting structure and method for axial flow fan for ship |
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| Publication Number | Publication Date |
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| CN112576549A CN112576549A (en) | 2021-03-30 |
| CN112576549B true CN112576549B (en) | 2022-12-13 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6471473B1 (en) * | 2000-10-17 | 2002-10-29 | Rule Industries, Inc. | Marine in bilge blower |
| JP2010265825A (en) * | 2009-05-15 | 2010-11-25 | Panasonic Corp | Axial blower |
| KR20110138053A (en) * | 2010-06-18 | 2011-12-26 | 대우조선해양 주식회사 | Vessel ventilation fan |
| CN202400284U (en) * | 2011-12-19 | 2012-08-29 | 大连中远船务工程有限公司 | Large-caliber air channel structure for ship cabin |
| CN205956034U (en) * | 2016-08-30 | 2017-02-15 | 安陆市盛鑫风机有限公司 | Axial fan convenient to maintain |
| CN108930660A (en) * | 2018-07-18 | 2018-12-04 | 杭州新融方科技有限公司 | A kind of low noise intelligent pipeline blower and its operating method based on Internet of Things |
| CN211599100U (en) * | 2020-01-08 | 2020-09-29 | 平原恒丰纺织科技有限公司 | Axial fan ventilation unit |
-
2020
- 2020-12-03 CN CN202011394217.7A patent/CN112576549B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6471473B1 (en) * | 2000-10-17 | 2002-10-29 | Rule Industries, Inc. | Marine in bilge blower |
| JP2010265825A (en) * | 2009-05-15 | 2010-11-25 | Panasonic Corp | Axial blower |
| KR20110138053A (en) * | 2010-06-18 | 2011-12-26 | 대우조선해양 주식회사 | Vessel ventilation fan |
| CN202400284U (en) * | 2011-12-19 | 2012-08-29 | 大连中远船务工程有限公司 | Large-caliber air channel structure for ship cabin |
| CN205956034U (en) * | 2016-08-30 | 2017-02-15 | 安陆市盛鑫风机有限公司 | Axial fan convenient to maintain |
| CN108930660A (en) * | 2018-07-18 | 2018-12-04 | 杭州新融方科技有限公司 | A kind of low noise intelligent pipeline blower and its operating method based on Internet of Things |
| CN211599100U (en) * | 2020-01-08 | 2020-09-29 | 平原恒丰纺织科技有限公司 | Axial fan ventilation unit |
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| CN112576549A (en) | 2021-03-30 |
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