Floor mounting structure of cabinet type centrifugal smoke exhaust fan

Abstract

The utility model discloses a cabinet type centrifugal smoke exhaust fan floor installation structure which comprises a base, a fan, a silencing box, an air suction pipe and an air exhaust pipe, the fan is arranged on the base, the air exhaust pipe is communicated with the air outlet end of the fan, the air suction pipe is communicated with the air inlet end of the fan through the silencing box, and the silencing box and the air suction pipe are both located above the fan. By arranging the silencing box, the air inlet end of the fan passes through the silencing box and then is communicated with the air suction pipe, so that sound generated during working of the fan firstly passes through the silencing box and then is transmitted out through the air suction pipe, and when the sound passes through the silencing box, the sound is in the whole cavity of the whole silencing box and can be fully absorbed by the inner wall of the silencing box; noise finally exhausted by the air suction pipe is effectively reduced, and the noise reduction effect is obvious.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of fire control, especially a cabinet type centrifugal smoke exhaust fan seat ground installation structure. BACKGROUND

[0002] The smoke exhaust fan is a kind of machine that can quickly remove odor, high temperature and oil fume gas, and the machine is characterized by good high-temperature resistance and high efficiency.The types of fan include centrifugal fan, axial flow fan, centrifugal fan and axial flow fan, and suitable machine is selected according to the size of space and the arrangement of smoke exhaust hood.The fire-fighting high-temperature smoke exhaust fan is suitable for ventilation and air exchange or high-temperature smoke exhaust of high-rise buildings, underground buildings and tunnels, drying rooms and the like.The existing centrifugal fire-fighting smoke exhaust fan on the market is provided with a sound-absorbing layer to achieve the effect of noise reduction, such as the one disclosed in application No.201822004111.6, which is a cabinet type centrifugal fire-fighting smoke exhaust fan with noise reduction function, and the sound-absorbing interlayer is fixedly installed outside the smoke exhaust pipe, but it does not have the effect of noise reduction on the noise at the air inlet. SUMMARY

[0003] The utility model discloses a cabinet type centrifugal smoke exhaust fan seat ground installation structure that can solve at least one of the above problems.

[0004] According to one aspect of the utility model, a cabinet type centrifugal smoke exhaust fan seat ground installation structure is provided, which comprises a base, a fan, a sound-absorbing box, an air suction pipe and an air exhaust pipe, the fan is arranged on the base, the air exhaust pipe is communicated with the air outlet end of the fan, the air suction pipe is communicated with the air inlet end of the fan through the sound-absorbing box, and the sound-absorbing box and the air suction pipe are both located above the fan.

[0005] The utility model has the advantages that the sound-absorbing box is arranged, so that the air inlet end of the fan is communicated with the air suction pipe after passing through the sound-absorbing box, therefore, the sound generated by the operation of the fan is first transmitted through the sound-absorbing box and then through the air suction pipe, when the sound passes through the sound-absorbing box, the sound is in the entire cavity of the sound-absorbing box, and the sound can be fully absorbed by the inner wall of the sound-absorbing box, so that the noise finally discharged through the air suction pipe is effectively reduced, and the noise reduction effect is obvious.

[0006] In some embodiments, the cabinet type centrifugal smoke exhaust fan seat ground installation structure further comprises an anti-vibration support arranged above the air suction pipe and the sound-absorbing box, so that the vibration of the air suction pipe and the sound-absorbing box above can be reduced by arranging the anti-vibration support, and the effect of shock absorption is achieved.

[0007] In some embodiments, the sound-absorbing box comprises an outer shell, a sound-absorbing glass wool layer, glass silk cloth and steel wire mesh, and the outer shell, the sound-absorbing glass wool layer, the glass silk cloth and the steel wire mesh are arranged and distributed in sequence from outside to inside, so that the inner wall of the sound-absorbing box has sound-absorbing function, and the noise is reduced.

[0008] In some embodiments, the air suction pipe is a square pipe, the sound attenuation box is square, the middle part of the air suction pipe is connected with the anti-vibration support, and the two ends of the sound attenuation box are connected with the anti-vibration support. Thus, the anti-vibration support is conveniently connected with the air suction pipe and the sound attenuation box.

[0009] In some embodiments, the anti-vibration support comprises a mounting frame and a suspension assembly, one end of the suspension assembly is fixed above the mounting frame, and the air suction pipe and the sound attenuation box are fixed with the mounting frame of the corresponding anti-vibration support. Thus, the anti-vibration support is conveniently connected with the air suction pipe and the sound attenuation box through the mounting frame, and the suspension assembly can reduce the vibration of the air suction pipe and the sound attenuation box.

[0010] In some embodiments, the mounting frame comprises a first mounting rod, a second mounting rod and a connecting screw rod, the first mounting rod and the second mounting rod are arranged in parallel, the two ends of the first mounting rod are connected with the two ends of the second mounting rod through the connecting screw rod, the air suction pipe is fixed between the corresponding first mounting rod and second mounting rod, and the sound attenuation box is fixed between the corresponding first mounting rod and second mounting rod. Thus, the first mounting rod and the second mounting rod can be conveniently clamped and fixed on the air suction pipe and the sound attenuation box.

[0011] In some embodiments, the suspension assembly comprises a vertical rod, an inclined rod and a connecting hinge, one end of the connecting hinge is fixedly sleeved on the connecting screw rod, the inclined rod is fixed with the other end of the connecting hinge, the bottom end of the vertical rod is fixedly sleeved on the connecting screw rod and located above one end of the connecting hinge, the inclined rod is arranged obliquely, and the vertical rod is arranged vertically. Thus, the vibration of the air suction pipe and the sound attenuation box can be conveniently conducted to the building body through the vertical rod and the inclined rod, and the air suction pipe and the sound attenuation box are damped.

[0012] In some embodiments, the air inlet end of the fan is communicated with the sound attenuation box through a first flexible connecting pipe, and the air outlet end of the fan is communicated with the air exhaust pipe through a second flexible connecting pipe. Thus, the first flexible connecting pipe and the second flexible connecting pipe are arranged, the fan is conveniently connected with the corresponding structure, and the installation alignment precision requirement is reduced.

[0013] In some embodiments, the cabinet type centrifugal smoke exhaust fan floor mounting structure further comprises a fireproof valve, and the tail end of the air exhaust pipe is provided with the fireproof valve. Thus, the safety in use is improved by arranging the fireproof valve. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a structural schematic view of a cabinet type centrifugal smoke exhaust fan floor mounting structure of the utility model.

[0015] Fig. 2 is a side wall sectional view structural schematic view of a sound attenuation box in a cabinet type centrifugal smoke exhaust fan floor mounting structure of the utility model.

[0016] Fig. 3It is the structure schematic diagram of the anti-vibration support and the air suction pipe in the cabinet type centrifugal smoke exhaust fan floor mounting structure.

[0017] Fig. 4 It is the main structure schematic diagram of the anti-vibration support and the air suction pipe in the cabinet type centrifugal smoke exhaust fan floor mounting structure. DETAILED DESCRIPTION

[0018] The utility model will be further explained in detail in combination with the drawings.

[0019] Refer to Figs. 1-4 The cabinet type centrifugal smoke exhaust fan floor mounting structure comprises a base 1, a fan 2, a muffler box 3, an air suction pipe 4 and an air exhaust pipe 5, the fan 2 is arranged on the base 1, the air exhaust pipe 5 is communicated with the air outlet end of the fan 2, the air suction pipe 4 is communicated with the air inlet end of the fan 2 through the muffler box 3, and the muffler box 3 and the air suction pipe 4 are both located above the fan 2. The base 1 is a channel steel support, the base 1 is placed on the building concrete foundation, and the fan 2 is supported and fixed through the base 1. The air outside the fan 2 can enter the air suction pipe 4, pass through the muffler box 3, pass through the fan 2 again and then be exhausted through the air exhaust pipe 5. The air exhaust pipe 5 is communicated with the outside air exhaust well, and the smoke exhaust is facilitated.

[0020] In the actual connecting process, the air inlet end of the fan 2 is communicated with the muffler box 3 through the first soft connecting pipe 7, and the air outlet end of the fan 2 is communicated with the air exhaust pipe 5 through the second soft connecting pipe 8. The first soft connecting pipe 7 and the second soft connecting pipe 8 can be arranged to adjust the distance between the muffler box 3 and the fan 2 and the distance between the air exhaust pipe 5 and the fan 2 according to the actual use scene, and the installation is more convenient.

[0021] The cabinet type centrifugal smoke exhaust fan floor mounting structure further comprises an anti-vibration support 6, and the anti-vibration support 6 is arranged above the air suction pipe 4 and the muffler box 3. The top end of the anti-vibration support 6 is fixed to the building body above, the air suction pipe 4 and the muffler box 3 can be conveniently fixed through the anti-vibration support 6, the vibration of the air suction pipe 4 and the muffler box 3 is conveniently conducted to the building body through the anti-vibration support 6, and thus the damping effect is achieved.

[0022] The muffler box 3 comprises an outer shell 31, a sound absorption glass wool layer 32, a glass silk cloth 33 and a steel wire mesh 34, and the outer shell 31, the sound absorption glass wool layer 32, the glass silk cloth 33 and the steel wire mesh 34 are sequentially arranged from outside to inside. The material of the outer shell 31 is galvanized sheet, the sound absorption glass wool layer 32 is clamped between the outer shell 31 and the glass silk cloth 33, the thickness of the sound absorption glass wool layer 32 is 50 mm, the sound absorption effect in the muffler box 3 is guaranteed, and the noise reduction effect is achieved. The steel wire mesh 34 is tightly pressed on the glass silk cloth 33, and the installation and fixation of the sound absorption glass wool layer 32 are realized.

[0023] By being provided with the sound-absorbing box 3, when the sound of the fan 2 is conducted into the sound-absorbing box 3, the sound can be sufficiently absorbed by the sound-absorbing glass wool layer 32 inside the sound-absorbing box 3, so that the sound finally emitted through the air suction pipe is small, achieving the effect of noise reduction.

[0024] The air suction pipe 4 is a square pipe, and the sound-absorbing box 3 is also square. The middle part of the air suction pipe 4 is connected with the anti-vibration support 6, and the two ends of the sound-absorbing box 3 are connected with the anti-vibration support 6. Therefore, by making the air suction pipe 4 a square pipe and the sound-absorbing box 3 square, the connection with the anti-vibration support 6 can be facilitated.

[0025] The anti-vibration support 6 comprises a mounting frame 61 and a suspension assembly 62. One end of the suspension assembly 62 is fixed above the mounting frame 61. The air suction pipe 4 and the sound-absorbing box 3 are respectively fixed with the mounting frame 61 of the corresponding anti-vibration support 6.

[0026] The mounting frame 61 comprises a first mounting rod 611, a second mounting rod 612 and a connecting screw rod 613. The first mounting rod 611 and the second mounting rod 612 are arranged in parallel. The two ends of the first mounting rod 611 are respectively connected with the two ends of the second mounting rod 612 through the connecting screw rod 613. The air suction pipe 4 is fixed between the corresponding first mounting rod 611 and second mounting rod 612, and the sound-absorbing box 3 is fixed between the corresponding first mounting rod 611 and second mounting rod 612.

[0027] Specifically, the first mounting rod 611 and the second mounting rod 612 are pressed on the upper and lower sides of the air suction pipe 4, and then the first mounting rod 611 and the second mounting rod 612 are locked through the connecting screw rod 613, so that the mounting frame 61 is fixed with the air suction pipe 4. A corresponding nut is sleeved on the connecting screw rod 613, which facilitates clamping the first mounting rod 611 and the second mounting rod 612 on the air suction pipe 4. Similarly, the first mounting rod 611, the second mounting rod 612 and the connecting screw rod 613 can be used to fix the sound-absorbing box 3 in the mounting frame 61.

[0028] The suspension assembly 62 comprises a vertical rod 621, an inclined rod 622 and a connecting hinge 623. One end of the connecting hinge 623 is fixedly sleeved on the connecting screw rod 613. The inclined rod 622 is fixed with the other end of the connecting hinge 623. The bottom end of the vertical rod 621 is fixedly sleeved on the connecting screw rod 613 and located above one end of the connecting hinge 623. The inclined rod 622 is arranged obliquely, and the vertical rod 621 is arranged vertically. When the connecting hinge 623 and the vertical rod 621 are sleeved on the connecting screw rod 613, and then an external nut is tightened on the connecting screw rod 613, the vertical rod 621 and the inclined rod 622 are installed on the mounting frame 61.

[0029] In actual installation, the top ends of the vertical rods 621 and the inclined rods 622 are fixed on the upper building body, so that the vibration of the air suction pipe 4 and the sound elimination box 3 is conducted to the building body through the parts of the anti-vibration support 6, and the damping effect is achieved.

[0030] The cabinet type centrifugal smoke exhaust fan seat ground installation structure further comprises a fireproof valve 9, and the tail end of the air exhaust pipe 5 is provided with the fireproof valve 9.

[0031] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the art, without departing from the creative concept of the utility model, a plurality of modifications and improvements can be made, which all belong to the protection range of the utility model.

Claims

1. A floor mounting structure for a cabinet type centrifugal smoke exhaust fan, characterized by, It includes base (1), fan (2), muffler box (3), air suction pipe (4) and exhaust pipe (5), the fan (2) is arranged on the base (1), the exhaust pipe (5) is communicated with the air outlet end of fan (2), the air suction pipe (4) is communicated with the air inlet end of fan (2) through muffler box (3), the muffler box (3) and air suction pipe (4) are located above fan (2).

2. The cabinet-type centrifugal exhaust fan floor mounting structure according to claim 1, characterized by It also includes anti-vibration support (6), the anti-vibration support (6) is arranged above air suction pipe (4) and muffler box (3).

3. The cabinet-type centrifugal exhaust fan floor mounting structure according to claim 2, characterized by The muffler box (3) includes shell (31), sound-absorbing glass wool layer (32), glass silk cloth (33) and steel wire mesh (34), the shell (31), sound-absorbing glass wool layer (32), glass silk cloth (33) and steel wire mesh (34) are arranged and distributed in turn from outside to inside.

4. The cabinet-type centrifugal exhaust fan floor mounting structure according to claim 2 or 3, characterized by The air suction pipe (4) is a square tube, the muffler box (3) is square, the middle part of the air suction pipe (4) is connected with the anti-vibration support (6), and the two ends of the muffler box (3) are connected with the anti-vibration support (6).

5. The cabinet-type centrifugal exhaust fan floor mounting structure according to claim 4, characterized by The anti-vibration support (6) includes mounting frame (61) and suspension assembly (62), one end of the suspension assembly (62) is fixed above the mounting frame (61), and the air suction pipe (4) and the muffler box (3) are fixed with the mounting frame (61) of the corresponding anti-vibration support (6) respectively.

6. The cabinet-type centrifugal exhaust fan floor mounting structure according to claim 5, characterized by The mounting frame (61) includes first mounting rod (611), second mounting rod (612) and connecting screw rod (613), the first mounting rod (611) and the second mounting rod (612) are arranged in parallel, the two ends of the first mounting rod (611) are connected with the two ends of the second mounting rod (612) through the connecting screw rod (613), the air suction pipe (4) is fixed between the corresponding first mounting rod (611) and the second mounting rod (612), and the muffler box (3) is fixed between the corresponding first mounting rod (611) and the second mounting rod (612).

7. The cabinet-type centrifugal exhaust fan floor mounting structure according to claim 6, characterized by The suspension assembly (62) includes vertical rod (621), inclined rod (622) and connecting hinge (623), one end of the connecting hinge (623) is fixedly sleeved on the connecting screw rod (613), the inclined rod (622) is fixed with the other end of the connecting hinge (623), and the bottom end of the vertical rod (621) is fixedly sleeved on the connecting screw rod (613) and located above one end of the connecting hinge (623), the inclined rod (622) is arranged obliquely, and the vertical rod (621) is arranged vertically.

8. The cabinet-type centrifugal exhaust fan base mounting structure according to any one of claims 1 to 3, characterized by The air inlet end of the fan (2) is communicated with the muffler box (3) through the first soft connecting pipe (7), and the air outlet end of the fan (2) is communicated with the exhaust pipe (5) through the second soft connecting pipe (8).

9. The cabinet-type centrifugal exhaust fan floor mounting structure according to claim 8, characterized by It also includes fireproof valve (9), and the tail end of the exhaust pipe (5) is provided with the fireproof valve (9).

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