Modular soundproof enclosure

Abstract

The modular combined soundproof cover of the present invention is a soundproof cover with modular soundproof devices overlapped and arranged in series and parallel in the upper and lower, left and right, front and back according to the outer dimensions of the fan through the soundproof cover frame, and connected and assembled with fasteners to form a soundproof cover with required length, width and height dimensions; when the high, medium and low sinusoidal sound waves of the fan noise diffuse to the surroundings, the sound waves collide with the sound insulation baffles set on the geometric filter plate in the geometric soundproof airflow filter device through the inlet waist-shaped holes on the inlet waist-shaped hole plate in the soundproof filter shell provided in the soundproof cover, and the sound wave rebound and cosine sound waves, and the phase shift of the sound wave and the sound insulation baffle have a sound absorption and silencing effect on the noise, and the noise reduction capacity reaches more than 35 decibels, and then flows through the outlet waist-shaped holes on the outlet waist-shaped hole plate to be discharged outward, which can reduce the impact of noise on the atmospheric environment and people's life and health.

Description

Technical Field

[0001] The modular combined soundproof cover of the present invention is a noise reduction and purification device related to the field of atmospheric environmental protection. When the sinusoidal sound waves of the fan noise spread to the surroundings, the sound waves collide with the sound insulation baffles set on the geometric filter plate in the geometric sound insulation airflow filter device to produce sound wave rebound and cosine sound waves. The phase shift of the sound waves and the sound insulation baffles have a sound absorption and silencing effect on the noise. The noise reduction capacity reaches more than 35 decibels and is discharged to the outside, which can reduce the impact of noise on the atmospheric environment and people's lives and physical and mental health. Background Art

[0002] The noise generated by existing fans is around 85 to 100 decibels. Most of them are made of sound-absorbing cotton materials to form soundproof boxes or soundproof covers. The noise insulation and noise reduction capabilities are mostly between 10 and 15 decibels. At the same time, the soundproof boxes or soundproof covers are equipped with ventilation equipment, which requires energy-consuming hot and cold air exchange. Therefore, it is necessary to develop a new technology and a new type of multifunctional soundproof cover, which uses centrifugal negative pressure and physical methods to absorb and reduce noise by more than 35 decibels and is an energy-saving modular combined soundproof cover. Summary of the invention

[0003] The present invention solves the above-mentioned technical problems through a series of technical features.

[0004] The modular combined soundproof cover is characterized by comprising a soundproof cover frame, a soundproof cover frame supporting beam, a soundproof cover frame base, a modular soundproofing device, a fan, a soundproof cover entry and exit door, a rotatable hinge for the entry and exit door, a fan concrete base, and a soundproof cover baffle.

[0005] The modular combined soundproof cover is characterized in that: the soundproof cover frame and the soundproof cover frame supporting beams are fixed to the soundproof cover frame base by welding or fasteners; the modular soundproofing devices are arranged and combined in an overlapping manner up and down, left and right, front and back, and in series and parallel connection through the rigid support of the soundproof cover frame, the soundproof cover frame supporting beams, and the soundproof cover frame base, and are connected with fasteners to form a soundproof cover with certain length, width, and height dimensions, which can utilize the centrifugal negative pressure principle and geometric physics to effectively reduce fan noise; a soundproof cover baffle is provided on the top of the soundproof cover, and the soundproof cover baffle is connected and fixed to the soundproof cover frame by fasteners.

[0006] The modular combined soundproof cover is characterized in that: the modular soundproof device is provided with a pentahedral soundproof filter shell, and the two faces of the inlet and outlet of the shell are provided with an inlet waist-shaped hole plate and an outlet waist-shaped hole plate, and a plurality of inlet waist-shaped holes and outlet waist-shaped holes are opened on the inlet waist-shaped hole plate and the outlet waist-shaped hole plate, the length of the waist-shaped hole is set between 15mm, the width is set within 6mm, and the center distance between the waist-shaped holes is set between 11~14mm; the two sides of the inlet waist-shaped hole plate and the outlet waist-shaped hole plate are bent into a symmetrical U-shape; a full opening is provided at the upper opening of the shell, and a lower partial opening is left at the lower part, and the size of the lower partial opening is set to 130~1 40mm; on the left and right sides, side baffles are attached to the inner sides of the U-shaped inlet waist-shaped orifice plate and the outlet waist-shaped orifice plate, and the length, width and height of the inner side of the U-shape are all set within 200mm, and they are connected and fixed to each other by welding to form a sound insulation filter shell; on both sides of the inlet and outlet of the sound insulation filter shell, that is, on the left and right sides of the inlet waist-shaped orifice plate and the outlet waist-shaped orifice plate, 4 inlet connecting plates and 4 outlet connecting plates are respectively provided, and the inlet connecting plate and the outlet connecting plate are each provided with a bolt hole; when the modular sound insulation device is combined and installed on the left and right sides, the fasteners are passed through the bolt holes on the inlet connecting plate and the outlet connecting plate to connect with each other and then fixed.

[0007] The modular sound insulation device is characterized in that: more than six geometric filter plates are arranged inside the sound insulation filter shell, and four geometric filter plate bolt holes with a diameter of 7 to 9 mm are arranged on the filter plates, and the support retaining rings are arranged between the geometric filter plates; the spacing between the geometric filter plates is set to within 24 to 26 mm, the single-side thickness of the support retaining ring is set to more than 3 mm, and its length is set to within 20 to 22 mm; the geometric filter plates are connected to the support retaining rings through fasteners passing through the geometric filter plate bolt holes to form a certain spacing and more than five sound insulation airflow filtering channels and devices.

[0008] The geometric soundproof airflow filter device is characterized in that: two geometric filter plates in the geometric soundproof airflow filter device are combined into a soundproof airflow filter channel, which is provided with three 45° right sound-absorbing plate grooves and 45° right sound-absorbing plates, three right waist-shaped bosses, three right large V-shaped grooves, three 42° left sound-absorbing plate grooves and 42° left sound-absorbing plates, two left large V-shaped grooves, three 30° waist-shaped bosses, three 45° waist-shaped bosses, and three 42° left small V-shaped grooves; 45° right sound-absorbing The depth of the plate groove is set to be more than 6mm, its width is set to between 12 and 15mm, its length is set to the same size as the length of the geometric filter plate, and a 45° right side sound-absorbing board with a thickness of more than 6mm is pasted in the 45° right side sound-absorbing board groove; the depth of the 42° left side sound-absorbing board groove is set to be more than 6mm, its width is set to between 12 and 15mm, its length is set to the same size as the length of the geometric filter plate, and a 42° left side sound-absorbing board with a thickness of more than 6mm is pasted in the 42° left side sound-absorbing board groove.

[0009] The soundproof airflow filtering channel is characterized in that: when there are two planes of geometric filter plates on a soundproof airflow filtering channel, the left plane of the filter plate is connected to the 42° left sound-absorbing plate and the 42° left inclined surface attached to the 42° left sound-absorbing plate groove, the 42° left inclined surface intersects with the 30° left bevel and the 30° waist-shaped boss plane to form a 30° waist-shaped boss, the 30° waist-shaped boss is connected to the 42° left small V-shaped groove, the 42° waist-shaped boss plane on the 42° left small V-shaped groove intersects with the 45° left inclined surface and the left groove bottom plane and connects the 42° left inclined surface to form a left large V-shaped groove; furthermore, the right plane of the filter plate is connected to the right waist-shaped boss and intersects with the 42° left sound-absorbing plate. The first M-wave shape is formed by connecting the back side of the plate groove, the right side inclined surface of 48°, the bottom plane of the right large V-shaped groove and the 45° right side sound-absorbing board attached in the 45° right side sound-absorbing board groove; and then the second M-wave shape and the third M-wave shape at different positions are connected in the same way as above to form a geometric filter plate; the gap dimension a between the right side waist-shaped boss plane and the 30° waist-shaped boss plane on a sound insulation airflow filtering channel is set to between 1 and 2 mm, the gap dimension b between the 45° waist-shaped boss plane and the outer top of the 45° right side sound-absorbing board groove is set to between 5 and 6 mm, and the spacing dimension c between the 30° waist-shaped boss plane and the 42° waist-shaped boss plane is set to between 3 and 4 mm.

[0010] The modular sound insulation device is characterized in that: there are assembly gaps inside the sound insulation filter shell and on the left and right sides of the geometric sound insulation airflow filter device. The device is placed through the upper opening of the sound insulation filter shell and is fixed by using more than two fixed adjustment wooden wedges to press into the gap between the sound insulation filter shell and the geometric sound insulation airflow filter device.

[0011] The geometric soundproof airflow filtering device is characterized in that: a soundproof baffle is provided near the soundproof airflow filtering channel inside the device and the outlet waist-shaped orifice plate along the gas outflow direction; the soundproof baffle is composed of a composite rubber material soundproof plate and a 10-mesh stainless steel filter screen on the front and back sides; the thickness of the composite rubber material soundproof plate is set to be greater than 6 mm, the width is set to be greater than 20 mm, and the length is set to be within 200 mm; a plurality of ventilation circular holes with a diameter of greater than 4 mm are provided on the composite rubber material soundproof plate, and the spacing between the centers of the ventilation circular holes is set to be between 5 and 6 mm; the width of the 10-mesh stainless steel filter screen is set to be greater than 20 mm, and its length is set to be within 200 mm; the ventilation circular holes on the composite rubber material soundproof plate and the 10-mesh stainless steel filter screen are connected and fixed with stainless steel wire.

[0012] The modular combined soundproof cover is characterized in that: the height of the concrete base of the fan is set above 150mm from the ground, the length and width of the base match the length and width of the fan frame, and four or more M16 anchor bolts are provided on the upper part of the fan concrete base. After the fan is fixed on the fan frame, it is installed on the fan concrete base and fixed after being connected to the fan frame with anchor bolts; a gap of more than 600mm must be left between the outside of the fan and the fan frame and the inside of the soundproof cover. , which is convenient for the movement of operators and the site and space for stacking equipment maintenance parts; a soundproof hood entrance door is provided on the left or right side of the soundproof hood, the width of the soundproof hood entrance door is set to be more than 800mm, the height of the soundproof hood entrance door is set to be within 2m, the soundproof hood entrance door is set between the soundproof hood frame supporting beam and the soundproof hood frame base, the soundproof hood entrance door is provided with more than four entrance door rotatable hinges, and the entrance door rotatable hinges are also connected to each other with fasteners and fixed to the soundproof hood frame and the soundproof hood entrance door.

[0013] The modular combined soundproof cover is characterized in that: when the fan noise generates sinusoidal sound waves of high, medium and low frequencies and diffuses to the soundproof covers at different positions around, the sound waves flow into the geometric soundproof airflow filter device through the inlet waist-shaped holes on the inlet waist-shaped hole plate in the soundproof filter shell provided in the modular soundproof cover, and the three 30° waist-shaped bosses, three right waist-shaped bosses, three 45° right sound-absorbing panels, three 42° left sound-absorbing panels, and three 42° left small V-shaped sound-absorbing panels provided on the soundproof airflow filter channel. When there are grooves and sound insulation baffles, the noise is reflected and rebounded, generating phase shift and cosine sound waves on the geometric filter plate, which are gradually absorbed and silenced by the three 45° right sound-absorbing panels, three 42° left sound-absorbing panels and sound insulation baffles at different positions, thereby reducing noise. The gas is then discharged outward through the outlet waist-shaped holes opened on the outlet waist-shaped hole plate fixed at the outlet of the sound insulation filter shell, while the inlet waist-shaped holes and the outlet waist-shaped holes can realize the unpowered exchange of hot and cold air inside and outside the sound insulation cover.

[0014] The device of the present invention has a simple, compact and reasonable structure. According to the outer dimensions of the fan and the high, medium and low audio frequencies and sound waves of the noise, the noise can be absorbed and reduced by more than 35 decibels through the inlet waist-shaped holes on the inlet waist-shaped hole plate in the soundproof filter shell provided with a modular soundproof cover and the soundproof baffle provided on the soundproof airflow filter channel in the geometric soundproof airflow filter device. The noise then flows through the outlet waist-shaped holes on the outlet waist-shaped hole plate to be discharged outward, thereby reducing the impact of noise on the atmospheric environment and people's lives and health. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall plan cross-sectional view of the device implemented by the present invention;

[0016] Figure 2 for Figure 1 AA section view in;

[0017] Figure 3 for Figure 1 Detailed plan section view in;

[0018] Figure 4 for Figure 3 BB section view in;

[0019] Figure 5 for Figure 3 CC view in;

[0020] Figure 6 for Figure 3 An enlarged view of a geometric soundproof airflow filter device;

[0021] Figure 7 for Figure 3 A magnified view of the acoustic baffle in the .

[0022] Figure 1 Middle: 1-modular combined sound insulation cover, 2-sound insulation cover frame, 3-modular sound insulation device, 4-fan, 5-entry and exit door of the sound insulation cover, 6-rotatable hinge of the entry and exit door, 7-concrete base of the fan, 8-baffle of the sound insulation cover.

[0023] Figure 2 middle:

[0024] 1-modular combined soundproof cover, 2-soundproof cover frame, 2a-soundproof cover frame supporting beam, 2b-soundproof cover frame base, 3-modular sound insulation device, 4-fan, 5-soundproof cover inlet and outlet door, 6-rotatable hinge of inlet and outlet door, 7-fan concrete base, 8-soundproof cover baffle.

[0025] Figure 3 middle:

[0026] 3-modular sound insulation device, 31-sound insulation filter housing, 32-geometric sound insulation airflow filter device, 33-sound insulation baffle, 34-support retaining ring, 35-fastener, 36-fixing adjustment wooden wedge, 37-lower part opening, 38-upper opening, 311-inlet waist-shaped hole plate, 312-inlet waist-shaped hole, 313-inlet connecting plate, 314-outlet waist-shaped hole plate, 315-outlet waist-shaped hole, 316-outlet connecting plate, 317-side baffle.

[0027] Figure 4 middle:

[0028] 3-modular sound insulation device, 31-sound insulation filter housing, 32-geometric sound insulation airflow filter device, 33-sound insulation baffle, 34-support retaining ring, 35-fastener, 36-fixing adjustment wooden wedge, 37-lower part opening, 38-upper opening, 311-inlet waist-shaped orifice plate, 314-outlet waist-shaped orifice plate, 317-side baffle.

[0029] Figure 5 middle:

[0030] 3-modular sound insulation device, 31-sound insulation filter housing, 37-lower partial opening, 38-upper opening, 311-inlet waist-shaped hole plate, 312-inlet waist-shaped hole, 313-inlet connecting plate, 314-outlet waist-shaped hole plate, 315-outlet waist-shaped hole, 316-outlet connecting plate, 317-side baffle.

[0031] Figure 6 middle:

[0032] 32-Geometric sound insulation airflow filter device, 321-Geometric filter plate, 322-Geometric filter plate bolt hole, 323-right waist-shaped boss, 323a-right waist-shaped boss plane, 324-42° left small V-shaped groove, 325-45° right sound absorption board, 325a-45° right sound absorption board groove, 326-42° left sound absorption board, 326a-42° left sound absorption board groove, 327-30° waist-shaped boss, 327a-30° waist-shaped boss plane, 328-42° waist-shaped boss, 328a-42° waist-shaped boss plane, 329-sound insulation airflow filter channel.

[0033] Figure 7 middle:

[0034] 33-sound insulation baffle, 331-10 mesh stainless steel filter, 332-composite rubber sound insulation board, 333-ventilation hole, 334-stainless steel wire. DETAILED DESCRIPTION

[0035] The following part further illustrates the technical features of the present invention in combination with embodiments and drawings.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the modular combined soundproof cover 1 includes a soundproof cover frame 2, a soundproof cover frame supporting beam 2a, a soundproof cover frame base 2b, a modular soundproofing device 3, a fan 4, a soundproof cover entrance door 5, a rotatable entrance door hinge 6, a fan concrete base 7, and a soundproof cover baffle 8.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the modular combined soundproof cover 1, the soundproof cover frame 2 and the soundproof cover frame supporting beam 2a and the soundproof cover frame base 2b are fixed to each other by welding or fasteners; through the rigid support of the soundproof cover frame 2, the soundproof cover frame supporting beam 2a and the soundproof cover frame base 2b, the modular soundproof device 3 is arranged and combined in an overlapping manner up and down, left and right, front and back, and in series and parallel connection, and is connected and assembled with fasteners to form a soundproof cover with a certain length, width and height dimensions, which can utilize the centrifugal negative pressure principle and geometric physics to effectively reduce the noise of the fan 4, and a soundproof cover baffle 8 is provided on the top of the soundproof cover, and the soundproof cover baffle 8 is connected and fixed to the soundproof cover frame 2 by fasteners.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the modular combined soundproof cover 1, the modular soundproof device 3 is provided with a pentahedral soundproof filter shell 31, and the two faces of the inlet and outlet of the shell are provided with an inlet waist-shaped hole plate 311 and an outlet waist-shaped hole plate 314, and a plurality of inlet waist-shaped holes 312 and outlet waist-shaped holes 315 are opened on the inlet waist-shaped hole plate 311 and the outlet waist-shaped hole plate 314, the length of the waist-shaped hole is set between 15mm, the width is set within 6mm, and the center distance between the waist-shaped holes is set between 11~14mm; the two sides of the inlet waist-shaped hole plate 311 and the outlet waist-shaped hole plate 314 are bent into a symmetrical U-shape; a full opening is provided in the upper opening 38 of the shell, and a lower partial opening 37 is left at the lower part, and the size of the lower partial opening 37 is set to 130~140 mm; on the left and right sides, side baffles 317 are attached to the inner sides of the U-shaped inlet waist-shaped orifice plate 311 and the outlet waist-shaped orifice plate 314, and the length, width and height of the inner side of the U-shape are all set within 200 mm, and are connected and fixed to each other by welding to form a sound insulation filter housing 31; on both sides of the inlet and outlet of the sound insulation filter housing 31, that is, on the left and right sides of the inlet waist-shaped orifice plate 311 and the outlet waist-shaped orifice plate 314, four inlet connecting plates 313 and four outlet connecting plates 316 are provided, and each of the inlet connecting plates 313 and the outlet connecting plates 316 is provided with a bolt hole; when the modular sound insulation device 3 is combined and installed on the left and right sides, the fasteners are passed through the bolt holes on the inlet connecting plates 313 and the outlet connecting plates 316 to connect with each other and then be fixed.

[0039] like Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the modular sound insulation device 3 has more than six geometric filter plates 321 arranged inside the sound insulation filter shell 31, and the filter plates are provided with four geometric filter plate bolt holes 322 with a diameter of 7 to 9 mm, and the support retaining ring 34 is arranged between the geometric filter plates 321; the spacing between the geometric filter plates 321 is set to within 24 to 26 mm, the single-side thickness of the support retaining ring 34 is set to more than 3 mm, and its length is set to within 20 to 20 mm; the geometric filter plates 321 are connected to the support retaining ring 34 through fasteners 35 passing through the geometric filter plate bolt holes 322 to form a certain spacing, more than five sound insulation airflow filtering channels 329, and form a geometric sound insulation airflow filtering device 32.

[0040] like Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the geometric soundproof airflow filter device 32 has two geometric filter plates 321 in the geometric soundproof airflow filter device 32 combined into a soundproof airflow filter channel 329, which are provided with three 45° right side sound absorbing plate grooves 326a and 45° right side sound absorbing plate 326, three right side waist-shaped bosses 323, three right side large V-shaped grooves, three 42° left side sound absorbing plate grooves 325a and 42° left side sound absorbing plate 325, two left side large V-shaped grooves, three 30° waist-shaped bosses 327, three 45° waist-shaped bosses 328, and three 42° left side small V-shaped grooves 324; the depth of the 45° right side sound absorbing plate groove 326a is set to be more than 6 mm, the width is set to be between 12 and 15 mm, and the length is set to the same size as the length of the geometric filter plate 321, and a thickness of more than 6 mm is attached to the 45° right side sound absorbing plate groove 326a.

[0041] 45° right sound absorbing panel 326; the depth of the 42° left sound absorbing panel groove 325a is set to be greater than 6 mm, the width is set to be between 12 and 15 mm, and the length is set to be the same as the length of the geometric filter plate 321, and the 42° left sound absorbing panel 325 with a thickness of more than 6 mm is attached in the 42° left sound absorbing panel groove 325a.

[0042] like Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the soundproof airflow filtering channel 329, when the planes of the two geometric filter plates 321 on a soundproof airflow filtering channel 329, the left plane of the filter plate is connected to the 42° left sound-absorbing plate 325 and the 42° left inclined surface attached in the 42° left sound-absorbing plate groove 325a, the 42° left inclined surface intersects with the 30° left bevel and the 30° waist-shaped boss plane 327a to form a 30° waist-shaped boss 327, the 30° waist-shaped boss 327 is connected to the 42° small V-shaped groove 324, the 42° waist-shaped boss plane 328a on the 42° left small V-shaped groove 324 intersects with the 45° left inclined surface and the left groove bottom plane and connects the 42° left inclined surface to form a left large V-shaped groove; furthermore, the right plane of the filter plate is connected to the right waist-shaped boss 323 and intersects with the 42° left sound-absorbing plate groove The first M-wave shape is formed by connecting the reverse side of 325a, the right side inclined surface of 48°, the bottom plane of the right large V-shaped groove and the 45° right side sound absorbing board 326 attached in the 45° right side sound absorbing board groove 326a; the second M-wave shape and the third M-wave shape at different positions are connected in the same way as above to form a geometric filter plate 321; the gap dimension a between the right side waist-shaped boss plane 323a and the 30° waist-shaped boss plane 327a on a sound insulation airflow filtering channel 329 is set to between 1 and 2 mm, the gap dimension b between the 45° waist-shaped boss plane 328a and the outer top of the 45° right side sound absorbing board groove 326 is set to between 5 and 6 mm, and the spacing dimension c between the 30° waist-shaped boss plane 323a and the 42° waist-shaped boss plane 328a is set to between 3 and 4 mm.

[0043] like Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the modular sound insulation device 3 has assembly gaps inside the sound insulation filter shell 31 and on the left and right sides of the geometric sound insulation airflow filter device 32. The device is placed through the upper opening 38 of the sound insulation filter shell 31 and is fixed by using more than two fixed adjustment wooden wedges 36 to press into the gap between the sound insulation filter shell 31 and the geometric sound insulation airflow filter device 32.

[0044] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, the geometric soundproof airflow filter device 32 has a soundproof baffle 33 provided near the soundproof airflow filter channel 329 inside the device and the outlet waist-shaped orifice plate 314 along the gas outflow direction; the soundproof baffle 33 is composed of a composite rubber material soundproof plate 332 and a 10-mesh stainless steel filter screen 331 provided on the front and back sides; the thickness of the composite rubber material soundproof plate 332 is set to be greater than 6 mm, the width is set to be greater than 20 mm, and the length is set to be within 200 mm. A plurality of ventilation circular holes 333 with a diameter of greater than 4 mm are provided on the composite rubber material soundproof plate 332, and the center spacing of the ventilation circular holes 333 is set to be between 5 and 6 mm; the width of the 10-mesh stainless steel filter screen 331 is set to be greater than 20 mm, and its length is set to be within 200 mm; a plurality of stainless steel wires 334 are used to pass through the ventilation circular holes 333 on the composite rubber material soundproof plate 332 and connect and fix with the 10-mesh stainless steel filter screen 331.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the modular combined soundproof cover 1, the fan concrete base 7, the base height is set more than 150mm from the ground, the length and width of the base match the length and width of the fan 4 frame, and more than four M16 anchor bolts are provided on the upper part of the fan concrete base 7. After the fan 4 is fixed on the fan frame, it is installed on the fan concrete bottom and fixed after being connected to the fan 4 frame with the anchor bolts; a gap of more than or equal to 600mm must be left between the outer side of the fan 4 and the fan 4 frame and the inner side of the soundproof cover for easy operation The personnel movement line and the place and space for stacking equipment maintenance parts; a soundproof cover entrance door 5 is provided on the left or right side of the soundproof cover, the width of the soundproof cover entrance door 5 is set to be more than 800mm, the height of the soundproof cover entrance door 5 is set to be within 2m, the soundproof cover entrance door 5 is arranged between the soundproof cover frame supporting beam 2a and the soundproof cover frame base 2b, the soundproof cover entrance door 5 is provided with more than four entrance door rotatable hinges 6, and the entrance door rotatable hinges 6 are also connected to each other by fasteners and fixed to the soundproof cover frame 2 and the soundproof cover entrance door 5.

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, in the modular combined soundproof cover 1, when the noise of the fan 4 generates sinusoidal sound waves of high, medium and low frequencies and diffuses to the soundproof covers at different positions around, the sound waves flow into the soundproof airflow filter channel 39 in the geometric soundproof airflow filter device 32 through the inlet waist-shaped hole 312 on the inlet waist-shaped hole plate 311 in the soundproof filter shell 31 provided in the modular soundproof cover 3, and into the three 30° waist-shaped bosses 327, three right waist-shaped bosses 323, three 45° right sound-absorbing panels 326, three 42° left sound-absorbing panels 325, and three 42° left small V-shaped grooves 327 provided on the soundproof airflow filter channel 39 in the geometric soundproof airflow filter device 32. 24. When the soundproof baffle 33 is used, the noise is reflected and rebounded, and the phase shift and cosine sound wave of the sound wave are generated on the geometric filter plate 321, and then the sound is gradually absorbed and silenced by the three 45° right sound-absorbing panels 326, the three 42° left sound-absorbing panels 325 and the soundproof baffle 33 at different positions, thereby playing a noise reduction role; and then the gas is discharged outward through the outlet waist-shaped hole 315 opened on the outlet waist-shaped hole plate 314 fixed at the outlet of the soundproof filter shell 31, while the inlet waist-shaped hole 312 and the outlet waist-shaped hole 315 can realize the unpowered hot and cold air exchange inside and outside the soundproof cover.

[0047] The device of the present invention has a simple, compact and reasonable structure. According to the external dimensions of the fan 4 and the high, medium and low frequencies and sound waves of the noise, the noise can be absorbed and reduced by more than 35 decibels through the inlet waist-shaped hole 312 on the inlet waist-shaped hole plate 311 in the soundproof filter shell 31 provided in the modular soundproof cover 3 and the soundproof baffle 33 provided on the soundproof airflow filter channel 329 in the geometric soundproof airflow filter device 32. The noise then flows through the outlet waist-shaped hole 315 on the outlet waist-shaped hole plate 314 and is discharged to the outside, thereby reducing the impact of noise on the atmospheric environment and people's lives and health.

Claims

1. A modular combined soundproof enclosure, characterized in that: It includes a soundproof enclosure frame, a soundproof enclosure frame supporting beam, a soundproof enclosure frame base, a modular soundproofing device, a fan, a soundproof enclosure inlet and outlet door, a rotatable hinge for the inlet and outlet door, a fan concrete base, and a soundproof enclosure baffle; The soundproof cover frame and the supporting crossbeam of the soundproof cover frame are fixed to the base of the soundproof cover frame by welding or fasteners; the modular sound insulation device is arranged and combined in a top-bottom, left-right, front-back overlapping and series-parallel manner through the rigid support of the soundproof cover frame, the supporting crossbeam of the soundproof cover frame and the base of the soundproof cover frame, and is connected with fasteners to form a soundproof cover with a certain length, width and height that can reduce the noise of the fan, and a soundproof cover baffle is provided on the top of the soundproof cover, and the soundproof cover baffle is connected and fixed to the soundproof cover frame by fasteners; The modular sound insulation device is provided with a pentahedral sound insulation filter housing, and an inlet waist-shaped orifice plate and an outlet waist-shaped orifice plate are provided on the two faces of the inlet and outlet of the housing, and a plurality of inlet waist-shaped holes and outlet waist-shaped holes are opened on the inlet waist-shaped orifice plate and the outlet waist-shaped orifice plate; the two sides of the inlet waist-shaped orifice plate and the outlet waist-shaped orifice plate are bent into a symmetrical U-shape; a full opening is provided at the upper opening of the housing, and a lower partial opening is reserved at the lower part; side baffles are attached to the inner sides of the U-shaped inlet waist-shaped orifice plate and the outlet waist-shaped orifice plate on the left and right sides, and are fixed by welding to form a sound insulation filter housing; On both sides of the inlet and outlet of the sound insulation filter housing, that is, on the left and right sides of the inlet waist-shaped orifice plate and the outlet waist-shaped orifice plate, there are respectively provided with 4 inlet connecting plates and 4 outlet connecting plates, and each of the inlet connecting plates and the outlet connecting plates is provided with a bolt hole; when the modular sound insulation device is combined and installed on the left and right sides, the fasteners are passed through the bolt holes provided on the inlet connecting plates and the outlet connecting plates to connect with each other and then fixed; More than six geometric filter plates are arranged inside the soundproof filter housing, and four geometric filter plate bolt holes with diameters between 7 and 9 mm are arranged on the geometric filter plates. Support retaining rings are arranged between the geometric filter plates. Fasteners are passed through the geometric filter plate bolt holes and connected to the support retaining rings between the geometric filter plates to form a certain spacing, more than five soundproof airflow filtering channels and devices; Two geometric filter plates in the geometric sound-proof airflow filter device are combined to form a sound-proof airflow filter channel, which is provided with three 45° right sound-absorbing plate grooves and a 45° right sound-absorbing plate, three right waist-shaped bosses, three right large V-shaped grooves, three 42° left sound-absorbing plate grooves and a 42° left sound-absorbing plate, two left large V-shaped grooves, three 30° waist-shaped bosses, three 45° waist-shaped bosses, and three 42° left small V-shaped grooves; There are assembly gaps inside the soundproof filter housing and on the left and right sides of the geometric soundproof airflow filter device. The device is placed through the upper opening of the soundproof filter housing and is fixed by using more than two fixed adjustment wooden wedges to press into the gap between the soundproof filter housing and the geometric soundproof airflow filter device.

2. The modular combined soundproof enclosure according to claim 1, characterized in that: The geometric soundproof airflow filtering device is provided with a soundproof baffle near the soundproof airflow filtering channel inside the device and the outlet waist-shaped orifice plate along the gas outflow direction; the soundproof baffle is composed of a composite rubber soundproof plate and a 10-mesh stainless steel filter screen on the front and back sides; the ventilation circular holes on the composite rubber soundproof plate are connected and fixed with the 10-mesh stainless steel filter screen by stainless steel wire.

3. The modular combined soundproof enclosure according to claim 1, characterized in that: The concrete base of the fan is set at a height of more than 150mm from the ground, and the length and width of the base match the length and width of the fan frame. Four or more M16 anchor bolts are provided on the upper part of the concrete base of the fan. After the fan is fixed on the fan frame, it is installed on the concrete base of the fan, and is fixed after being connected to the fan frame with anchor bolts; a gap of more than or equal to 600mm must be left between the outside of the fan and the inside of the fan frame and the soundproof cover; a soundproof cover entrance door is provided on the left or right side of the soundproof cover, the width of the soundproof cover entrance door is set to more than 800mm, the height of the soundproof cover entrance door is set to within 2m, the soundproof cover entrance door is set between the supporting crossbeam of the soundproof cover frame and the base of the soundproof cover frame, and the soundproof cover entrance door is provided with more than four rotatable hinges for the entrance door, and the rotatable hinges for the entrance door are connected and fixed to the soundproof cover frame and the soundproof cover entrance door with fasteners.

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