CN111207427A - Outdoor protection casing of smoke exhaust fan - Google Patents
Outdoor protection casing of smoke exhaust fan Download PDFInfo
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- CN111207427A CN111207427A CN202010028708.3A CN202010028708A CN111207427A CN 111207427 A CN111207427 A CN 111207427A CN 202010028708 A CN202010028708 A CN 202010028708A CN 111207427 A CN111207427 A CN 111207427A
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- Prior art keywords
- smoke exhaust
- main part
- rain
- exhaust fan
- fan main
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to an outdoor protective cover of a smoke exhaust fan, which comprises a fan main body, a connecting pipeline, a waterproof ceiling and rainproof shutters, wherein the rainproof shutters are arranged along the circumferential direction of the edge of the waterproof ceiling and are connected end to end, the connecting pipeline is arranged on two sides of the fan main body and horizontally penetrates through the rainproof shutters, the connecting pipeline on one side is connected with a building, and the connecting pipeline is connected with the fan main body through a connecting piece. The invention has the effect of enabling the installation of the smoke exhaust fan to meet the requirements of GB51251-2017 under the condition of not increasing the occupied area and the manufacturing cost of the smoke exhaust fan.
Description
Technical Field
The invention relates to the technical field of outdoor protective covers, in particular to an outdoor protective cover of a smoke exhaust fan.
Background
At present, a smoke exhaust fan is a machine which can rapidly exhaust peculiar smell, high temperature and oil smoke gas generated in the food processing process in a kitchen. In 2018, 8, 1.8, 1.1, GB51251-2017, it is specified that the smoke exhaust and positive pressure air supply fan is arranged in a special machine room, and the smoke exhaust and positive pressure air supply fan originally arranged on the roof is arranged in the machine room, so that the building area is increased, the manufacturing cost is increased, and the enterprise benefit is reduced. Zhejiang province fire protection technical specification difficult point problem operation technical manual 2019 (72) indicates that the smoke exhaust and positive pressure air supply fan can be placed outdoors, but a corresponding large sample drawing and installation drawing are required, so that the smoke exhaust fan can be placed outdoors and has good rainproof, sun-proof, ventilation and heat dissipation and maintenance effects, the same effect as that of a machine room which is separately arranged is achieved, and the requirement of the smoke exhaust fan peripheral equipment can be met by designing a protective cover.
Disclosure of Invention
The invention aims to provide an outdoor protective cover of a smoke exhaust fan, which has the effect of enabling the installation of the smoke exhaust fan to meet the requirements of GB51251-2017 under the condition of not increasing the occupied area and the manufacturing cost of the smoke exhaust fan.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides an outdoor protection casing of smoke exhaust fan, includes fan main part, connecting tube, waterproof ceiling and rain-proof tripe, rain-proof tripe sets up and end to end along the border circumference of waterproof ceiling, connecting tube set up in rain-proof tripe is run through to the both sides of fan main part and level, one of them side connecting tube is connected with the building, connecting tube with connect through the connecting piece between the fan main part.
Through adopting the above technical scheme, in the in-process of installation, it fixes between waterproof ceiling and the rain-proof tripe, make waterproof ceiling, form a rain-proof space between rain-proof tripe and the ground, processing fan main part installs in rain-proof space, then be connected building and fan main part through connecting tube, and be connected fan main part and external, thereby make the waste gas of production discharge in time through fan main part and connecting tube, and compare in directly setting up fan main part within solitary computer lab, direct rain-proof tripe and rain-proof ceiling formation rain-proof space through setting up in the outside of protection casing, the cost of exhaust fan installation has been reduced.
The invention is further configured to: the connecting piece is a stainless steel corrugated expansion joint, the connecting pipeline far away from one side of the building extends out of the end part of the rainproof shutter, and a rain baffle is arranged on the mounting part.
Through adopting above-mentioned technical scheme, through setting up the connecting piece into the ripple expansion joint, because the guide bar that is used for fixing a position the ripple expansion joint has on the ripple expansion joint, thereby make the in-process of taking place vibrations between connecting tube and the fan main part, axial motion only can carry out, can reduce the vibrations that produce in the fan main part through the ripple expansion joint and transmit connecting tube and rain-proof tripe department, and reduced the impact force of fan main part and connecting tube to ground, the life of outdoor protection casing and fan main part has been promoted to a certain extent.
The invention is further configured to: be provided with the installation basis of air feed fan main part installation subaerial, be provided with damper assembly between the bottom of fan main part and the installation basis, damper assembly includes mount pad, shock attenuation seat and damping spring, the mount pad is installed in the top of installation basis, damping spring sets up between mount pad and shock attenuation seat, damping spring is the array and arranges.
Through adopting above-mentioned technical scheme, can provide certain holding power for the fan main part through damper, the pressure of fan main part to the connecting tube has been reduced, thereby it is too big owing to bear weight to have reduced the connecting tube to a certain extent, lead to rain-proof tripe to take place the probability of damage, and can reduce the subaerial probability of vibrations transmission in the fan main part through setting up damping spring, thereby reduced and set up the influence of fan main part to the resident family in the building at the roof, and reduced the impact of fan main part to the building, the probability that the fan main part caused the influence to the structural strength of building main part has been reduced.
The invention is further configured to: the damping assembly further comprises a guide rod, the guide rod is vertically fixed at the top of the mounting seat, and a damping pad is arranged between the damping seat and the fan main body.
Through adopting above-mentioned technical scheme for mount pad and shock absorber seat can only carry out axial vibration at the in-process that vibrates, thereby make the fan main part can install in the top of building steadily through guide bar and stainless steel ripple expansion joint.
The invention is further configured to: the bottom of the outer side of the guide rod is provided with threads, the bottom of the guide rod is provided with an adjusting nut, the top of the damping spring is attached to the bottom of the damping seat, and the bottom of the damping spring is attached to the top of the adjusting nut.
Through adopting above-mentioned technical scheme, when the top of floor takes place the inhomogeneous settlement, lead to the fan main part to the pressure inequality of the connecting tube of both sides easily, the atress that leads to the connecting tube of both sides changes, be located the adjusting nut on the guide bar through the regulation, thereby can change damping spring to the pressure of shock attenuation seat, thereby change the inclination of fan main part, to compensating because the angular variation that the inhomogeneous settlement of floor leads to, thereby make the atress between fan main part and the connecting tube more even, the life of outdoor protection casing has been promoted to a certain extent.
The invention is further configured to: the bottom of cushion socket is provided with horizontal subassembly, horizontal subassembly includes horizontal cover and instruction piece, horizontal cover and cushion socket fixed connection, the horizontal cover is filled with liquid, it floats on liquid to instruct the piece.
Through adopting above-mentioned technical scheme, can reflect the angle change of damper through the angle change of the instruction piece at horizontal cover top to make things convenient for adjusting the angle of fan main part using adjusting nut, adjust the fan main part to with connecting tube on same straight line more easily.
The invention is further configured to: rain-proof tripe includes frame and flabellum, the flabellum rotation mount is on the frame, every flabellum on the rain-proof tripe is provided with the connecting rod of vertical connection all flabellums towards one side of fan main part, it is articulated between flabellum and the connecting rod, the bottom of frame is provided with lifting unit, every the top of connecting rod all is provided with the coupling assembling of being connected between connecting rod and the lifting unit.
Through adopting above-mentioned technical scheme, can realize controlling the angle that opens and shuts to the blade on the rain-proof tripe through lifting unit to reach the effect of the speed of circulation of air in the outdoor protection casing of control, when outside wind and rain is great, directly drive the angle that opens and shuts that coupling assembling reduced rain-proof tripe through lifting unit, thereby reduced the rainwater and penetrated the probability that the clearance entered into the protection casing inside between the rain-proof tripe, thereby ensured that the inside air of outdoor protection casing keeps pure.
The invention is further configured to: the lifting assembly comprises a screw motor, the connecting assembly comprises a sliding block and a lifting rod, the sliding block is slidably mounted at the bottom of the screw motor, the lifting rod is mounted at the bottom of the sliding block, a guide groove hole for the horizontal sliding of the connecting rod is horizontally formed in the lifting rod, a locking bolt is arranged on the side wall of the connecting rod, and the locking bolt penetrates through the guide groove hole and is in threaded connection with the connecting rod. .
Through adopting above-mentioned technical scheme, can realize the regulation to the flabellum angle on the rain-proof tripe through driving lead screw motor, compare in using cylinder etc. to drive, save the required space of setting up the air supply, and increased the precision of flabellum angle modulation.
The invention is further configured to: the lifting assembly further comprises an electromagnetic valve and a humidity detection device, the humidity detection device and the screw rod motor are both installed at the top of the frame, a probe of the humidity detection device extends into the frame, when the internal humidity is greater than 40%, the screw rod motor rises to drive the fan blades to move downwards, and when the depth is less than or equal to 40%, the screw rod motor descends to drive the fan blades to move upwards.
Through adopting above-mentioned technical scheme, through setting up humidity detection device, make the lifting unit can pass through the angle of solenoid valve and humidity detection device automatic adjustment flabellum, thereby adjust and control the interaction between outdoor protection casing and the external environment, thereby when the external environment is comparatively abominable, when having reduced the external environment to the inside smoke exhaust fan of outdoor protection casing, and when the external environment is better, can increase the interaction between fan main part and the external environment, make the inner space of outdoor protection casing can keep dry.
The invention is further configured to: isolation grooves are formed in two sides of the installation foundation, panels, insulation boards, waterproof rolls and slope finding layers are sequentially arranged on the side walls of the isolation grooves along the height direction of the isolation grooves, the slope finding layers are arranged at the top of the building, and the waterproof rolls and the panels are fixed through gypsum strips arranged in the isolation grooves.
By adopting the technical scheme, the isolation grooves are formed in the two sides of the installation foundation, so that the influence of the vibration of the fan on the rainproof shutters on the two sides is reduced, the tops of the isolation grooves can be leveled by arranging the slope-finding layer, and the waterproof coiled material arranged at the top of the slope-finding layer reduces the possibility that water flow can be stored through the isolation grooves after entering the outdoor protective cover through the rainproof shutters, and cannot permeate into the building through the isolation grooves; through setting up the heated board for the heat that the fan main part produced can be kept apart through the heated board, thereby has reduced and has seted up the influence of keeping apart recess and fan main part to the resident family in the building.
In conclusion, the beneficial technical effects of the invention are as follows:
1. by arranging the waterproof ceiling and the rainproof shutter, the installation of the smoke exhaust fan can meet the requirements of GB51251-2017 under the condition of not increasing the occupied area and the manufacturing cost of the smoke exhaust fan;
2. by arranging the damping component, the noise generated by the fan main body in the use process is reduced;
3. through setting up lifting unit, have the effect that can adjust the angle of flabellum.
Drawings
Fig. 1 is a schematic view of the general structure of the present invention.
Fig. 2 is a partial structural schematic diagram of the present invention.
Figure 3 is an exploded view of the blower body and damper assembly.
Fig. 4 is a schematic view of the general structure of the rain-proof shutter.
Fig. 5 is an enlarged schematic view of a portion a in fig. 4.
Fig. 6 is a partial sectional view schematically showing the structure of the mounting base.
In the figure, 1, a fan main body; 2. connecting a pipeline; 22. a rain shield; 23. a connecting member; 3. a waterproof ceiling; 31. a lifting assembly; 311. a lead screw motor; 312. an electromagnetic valve; 313. a humidity detection device; 4. rain-proof shutter; 41. a frame; 42. a fan blade; 43. a connecting rod; 431. locking the bolt; 44. a connecting assembly; 441. a sliding block; 442. a lifting rod; 443. a guide slot hole; 5. installing a foundation; 51. isolating the groove; 52. a panel; 53. a thermal insulation board; 54. waterproof coiled materials; 55. finding a slope layer; 56. gypsum strips; 6. a shock absorbing assembly; 61. a mounting seat; 62. a shock absorbing seat; 621. installing a jack; 622. a shock pad; 63. a guide bar; 631. adjusting the nut; 64. a damping spring; 65. a horizontal component; 651. a horizontal sleeve; 652. an indicator sheet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, an outdoor protection cover of a smoke exhaust fan comprises a fan body 1, a connecting pipeline 2, a waterproof ceiling 3 and a rainproof louver 4.
Rain-proof tripe 4 sets up and end to end along waterproof ceiling 3's border circumference, and connecting tube 2 sets up and runs through rain-proof tripe 4 in the both sides and the level of fan main part 1, and wherein one side connecting tube 2 is connected with the building, and the connecting tube 2 of keeping away from building one side extends the tip of rain-proof tripe 4 and is provided with installation department 21, installs weather shield 22 on the installation department 21. In this embodiment, the mounting portion 21 and the weather shield 22 are welded and fixed to each other.
Be provided with connecting piece 23 between connecting tube 2 and the fan main part 1, be connected through connecting piece 23 between connecting tube 2 and the fan main part 1, connecting piece 23 is stainless steel ripple expansion joint.
Referring to fig. 2 and 3, an installation foundation 5 for installing the fan main body 1 is arranged on the ground, a damping assembly 6 is arranged between the bottom of the fan main body 1 and the installation foundation 5, the damping assembly 6 comprises an installation base 61, a damping base 62, a guide rod 63 and a damping spring 64, and the installation base 61 is embedded in the installation foundation 5. A shock pad 622 is disposed between the shock absorbing seat 62 and the blower main body 1. The damping spring 64 is sleeved outside the guide rod 63. The guide bar 63 is vertically fixed to the top of the mount base 61.
The bottom of the outer side of the guide rod 63 is provided with threads, the bottom of the guide rod 63 is provided with an adjusting nut 631, the top of the damping spring 64 is attached to the bottom of the damping seat 62, and the bottom of the damping spring 64 is attached to the top of the adjusting nut 631.
The bottom of cushion socket 62 is provided with horizontal subassembly 65, and horizontal subassembly 65 includes horizontal cover 651 and instruction piece 652, and horizontal cover 651 and cushion socket 62 fixed connection, horizontal cover 651 are filled with liquid, and instruction piece 652 floats on liquid.
Referring to fig. 4, the rain-proof louver 4 includes a frame 41 and blades 42, the blades 42 are rotatably mounted on the frame 41, a connecting rod 43 vertically connecting all the blades 42 is disposed on one side of the blade 42 of each rain-proof louver 4 facing the fan body 1, and the blades 42 are hinged to the connecting rod 43.
Referring to fig. 4 and 5, the bottom of the frame 41 is provided with a lifting assembly 31, and the lifting assembly 31 includes a screw motor 311, an electromagnetic valve 312, and a humidity detection device 313. The humidity detection device 313 and the lead screw motor 311 are both installed at the bottom of the waterproof ceiling 3, when the internal humidity is greater than 40%, the lead screw motor rises to drive the fan blades 42 to move downwards, and when the depth is less than or equal to 40%, the lead screw motor falls to drive the fan blades 42 to move upwards.
The top of each connecting rod 43 is provided with a connecting assembly 44 connecting the connecting rod 43 with the lifting assembly 31. The connecting assembly 44 includes a sliding block 441 and a lifting rod 442, the sliding block 441 is slidably mounted at the bottom of the screw motor 311, and is matched with the screw motor 311, the lifting rod 442 is mounted at the bottom of the sliding block 441, a guide slot 443 is horizontally formed in the lifting rod 442, a locking bolt 431 is disposed on a side wall of the connecting rod 43, and the locking bolt 431 penetrates through the guide slot 443 and is in threaded connection with the sliding block 441.
In this embodiment, the connection rod 43 is integrally provided with the lift rod 442. When the screw motor 311 is activated, the sliding block 441 moves to drive the lifting rod 442 to lift, and the lifting rod 442 slides relative to the sliding block 43, and simultaneously the connecting rod 43 drives the fan blade 42 to lift.
Referring to fig. 6, isolation groove 51 has been seted up to the both sides of installation basis 5, and isolation groove 51's lateral wall has set gradually panel 52, heated board 53, waterproofing membrane 54, looks for slope layer 55 along its direction of height, looks for slope layer 55 to set up in the building top, and isolation groove 51's border department is provided with gypsum strip 56, and waterproofing membrane 53 and panel 52 all upwards extend to isolation groove 51's border department and fix through gypsum strip 56.
The use principle of the embodiment is as follows: in-process at the installation, it fixes between waterproof ceiling 3 and rain-proof tripe 4, make waterproof ceiling 3, form a rainproof space between rain-proof tripe 4 and the ground, processing fan main part 1 is installed in rainproof space, then be connected building and fan main part 1 through connecting tube 2, and be connected fan main part 1 and the external world, thereby make the waste gas of production discharge in time through fan main part 1 and connecting tube 2, and compare in directly setting up fan main part 1 within solitary computer lab, direct rain-proof space of formation through setting up rain-proof tripe 4 and rain-proof ceiling in the outside of protection casing, the cost of exhaust fan installation has been reduced.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides an outdoor protection casing of smoke exhaust fan, includes fan main part (1), its characterized in that: still include connecting tube (2), waterproof ceiling (3) and rain-proof tripe (4), rain-proof tripe (4) set up and end to end along the border circumference of waterproof ceiling (3), connecting tube (2) set up in rain-proof tripe (4) are run through to both sides and the level of fan main part (1), one of them side connecting tube (2) are connected with the building, connecting tube (2) with connect through connecting piece (23) between fan main part (1).
2. The outdoor shield of a smoke exhaust fan of claim 1, wherein: the connecting piece (23) is a stainless steel corrugated expansion joint, one side of the building is far away from the connecting pipeline (2) which extends out of the end part of the rainproof shutter (4) is provided with an installation part, and a rain baffle (22) is arranged on the installation part.
3. The outdoor shield of the smoke exhaust fan according to claim 2, characterized in that: be provided with installation basis (5) that supply fan main part (1) to install on subaerial, be provided with damper (6) between the bottom of fan main part (1) and installation basis (5), damper (6) are including mount pad (61), shock attenuation seat (62) and damping spring (64), the top in installation basis (5) is installed in mount pad (61), damping spring (64) set up between mount pad (61) and shock attenuation seat (62), damping spring (64) are the array and arrange.
4. The outdoor shield of claim 3, wherein: damper (6) still include guide bar (63), guide bar (63) vertical be fixed in the top of mount pad (61), supply guide bar (63) male installation jack (621) have been seted up to the bottom of shock attenuation seat (62), be provided with shock pad (622) between installation jack (621) and guide bar (63).
5. The outdoor shield of the smoke exhaust fan according to claim 4, wherein: the outside bottom of guide bar (63) is provided with the screw thread, the bottom of guide bar (63) is provided with adjusting nut (631), the top of damping spring (64) with the bottom laminating of shock mount (62), the bottom of damping spring (64) with the top laminating of adjusting nut (631).
6. The outdoor shield of a smoke exhaust fan of claim 5, wherein: the bottom of cushion socket (62) is provided with horizontal subassembly (65), horizontal subassembly (65) are including horizontal cover (651) and indication piece (652) board, horizontal cover (651) and cushion socket (62) fixed connection, horizontal cover (651) intussuseption is filled with liquid, indicate piece (652) float on liquid.
7. The outdoor shield of a smoke exhaust fan of claim 1, wherein: rain-proof tripe (4) are including frame (41) and flabellum (42), flabellum (42) rotary mounting is on frame (41), every flabellum (42) on rain-proof tripe (4) are provided with connecting rod (43) of vertical all flabellum (42) of connecting towards one side of fan main part (1), it is articulated between flabellum (42) and connecting rod (43), the bottom of frame (41) is provided with lifting unit (31), every the top of connecting rod (43) all is provided with coupling assembling (44) of being connected between connecting rod (43) and lifting unit (31).
8. The outdoor shield of a smoke exhaust fan of claim 7, wherein: the lifting assembly (31) comprises a screw motor (311), the connecting assembly (44) comprises a sliding block (441) and a lifting rod (442), the sliding block (441) is slidably mounted at the bottom of the screw motor (311), the lifting rod (442) is mounted at the bottom of the sliding block (441), a guide slot hole (443) for the connecting rod (43) to horizontally slide is horizontally formed in the lifting rod (442), a locking bolt (431) is arranged on the side wall of the connecting rod (43), and the locking bolt (431) penetrates through the guide slot hole (443) and is in threaded connection with the connecting rod (43).
9. The outdoor shield of claim 8, wherein: lifting unit (31) still includes solenoid valve (312) and humidity detection device (313), humidity detection device (313) and lead screw motor all install in the top of frame (41), the probe of humidity detection device (313) extends into in frame (41), and when inside humidity is greater than 40%, the lead screw motor rises, drives flabellum (42) downstream, and when the degree of depth is less than or equal to 40%, the lead screw motor descends, drives flabellum (42) upward movement.
10. The outdoor shield of claim 3, wherein: isolation groove (51) have been seted up to the both sides of installation basis (5), the lateral wall of isolation groove (51) has set gradually panel (52), heated board (53), waterproofing membrane (54), has looked for slope layer (55) along its direction of height, look for slope layer (55) and set up in the building top, waterproofing membrane (54) and panel (52) are fixed through gypsum strip (56) that set up in isolation groove (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028708.3A CN111207427A (en) | 2020-01-11 | 2020-01-11 | Outdoor protection casing of smoke exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028708.3A CN111207427A (en) | 2020-01-11 | 2020-01-11 | Outdoor protection casing of smoke exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111207427A true CN111207427A (en) | 2020-05-29 |
Family
ID=70783427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010028708.3A Pending CN111207427A (en) | 2020-01-11 | 2020-01-11 | Outdoor protection casing of smoke exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111207427A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004211940A (en) * | 2002-12-27 | 2004-07-29 | Osaka Gas Co Ltd | Cooking equipment with grill |
| CN205956030U (en) * | 2016-08-17 | 2017-02-15 | 广州市洛森通风设备制造有限公司 | Dual waterproof anticorrosive cabinet type roof axial fan |
| CN206319806U (en) * | 2016-12-26 | 2017-07-11 | 绍兴市鼎赞环保科技有限公司 | Shutter |
| CN207485930U (en) * | 2017-10-30 | 2018-06-12 | 上海通用风机股份有限公司 | A kind of wind turbine damping spring damper |
| CN109281497A (en) * | 2018-11-06 | 2019-01-29 | 中航长沙设计研究院有限公司 | Integrated smoke exhaust fan room |
-
2020
- 2020-01-11 CN CN202010028708.3A patent/CN111207427A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004211940A (en) * | 2002-12-27 | 2004-07-29 | Osaka Gas Co Ltd | Cooking equipment with grill |
| CN205956030U (en) * | 2016-08-17 | 2017-02-15 | 广州市洛森通风设备制造有限公司 | Dual waterproof anticorrosive cabinet type roof axial fan |
| CN206319806U (en) * | 2016-12-26 | 2017-07-11 | 绍兴市鼎赞环保科技有限公司 | Shutter |
| CN207485930U (en) * | 2017-10-30 | 2018-06-12 | 上海通用风机股份有限公司 | A kind of wind turbine damping spring damper |
| CN109281497A (en) * | 2018-11-06 | 2019-01-29 | 中航长沙设计研究院有限公司 | Integrated smoke exhaust fan room |
Non-Patent Citations (1)
| Title |
|---|
| 温华兵: "《船舶振动噪声预报与结构声学设计》", 31 October 2015 * |
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Application publication date: 20200529 |
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| RJ01 | Rejection of invention patent application after publication |