Noise reduction box suitable for high-pressure fan

Abstract

The utility model provides a noise reduction box suitable for a high-pressure fan, which comprises a box body, the box body comprises a base, an air inlet cavity arranged on the base and an exhaust cavity arranged at the upper end of the air inlet cavity, the high-pressure fan is arranged in the air inlet cavity, the air inlet end of the high-pressure fan is connected with a control box, and the air outlet end of the high-pressure fan is connected with the control box. The control box is provided with an air inlet silencer and a negative pressure opening, and the air inlet silencer is arranged in the air inlet cavity. Air suction noise is firstly reduced by the air inlet silencer, and then the noise is further isolated by the silencing cotton around the box body, so that the noise generated by air inlet is effectively reduced. An air channel partition plate is arranged in the exhaust cavity, silencing cotton is arranged on the two sides of the air channel partition plate, exhaust gas of the fan flows through the exhaust flow channel, noise is gradually reduced, and the noise reduction effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of noise reduction box, specifically is a kind of noise reduction box suitable for high pressure fan. BACKGROUND

[0002] In the industrial production process, high pressure fan is used in the working condition of sorting package, unstacking and stacking and product into box etc. carrying extraction as negative pressure power source, high pressure fan is very loud in the process of using, often can reach 90 decibels above, affect the normal work of personnel.

[0003] The main noise of fan comes from wind noise, wind noise is mainly generated in fan exhaust port, secondly for air inlet, in the past application, silencer will be installed in air inlet and outlet, to achieve the effect of noise reduction, but it is not ideal, after noise reduction, noise is still about 85 decibels, high pressure fan is in load state when being used to extract object, fan temperature will also rise to 100 degrees Celsius, which affects the service life of fan and is not safe, so improvement is needed, a kind of noise reduction box suitable for high pressure fan is proposed. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a kind of noise reduction box suitable for high pressure fan to solve the problem proposed in the above background technology.

[0005] The utility model solves the technical problem and realizes by the following technical scheme: a kind of noise reduction box suitable for high pressure fan, including box, box includes base and the air inlet cavity of installation on base, exhaust cavity is set on the upper end of air inlet cavity, high pressure fan is built-in in air inlet cavity, the air inlet end of the high pressure fan is connected control box, air inlet silencer and negative pressure port are set on the control box, air inlet silencer is built-in in air inlet cavity, the exhaust end of the high pressure fan is connected exhaust silencer, and exhaust silencer outer end is equipped with exhaust guide elbow, and exhaust guide elbow is inserted into exhaust cavity, S-shaped exhaust flow channel is formed in the exhaust cavity by air passage partition, to reduce exhaust noise, and the outer end of box is equipped with corresponding exhaust port;

[0006] Air inlet fan and exhaust fan are mounted on the two sides of the air inlet cavity respectively, to promote the airflow flow in the air inlet cavity, reduce the temperature of high pressure fan.

[0007] As a further scheme of the utility model:

[0008] Exhaust guide elbow is installed on one side of exhaust flow channel, and exhaust port is installed on the side of exhaust cavity away from exhaust guide elbow, so that airflow passes through exhaust flow channel, and soundproof cotton board is respectively arranged at air passage partition and exhaust port, to gradually reduce noise.

[0009] As a further scheme of the utility model:

[0010] The inner walls of the air inlet cavity and the air outlet cavity are respectively paved with sound-absorbing cotton boards, and the upper end surface of the base is also provided with a sound-absorbing cotton board, so as to reduce airflow noise.

[0011] As a further scheme of the utility model,

[0012] The outer end of the sound-absorbing cotton board is provided with a high-temperature-resistant material to avoid direct contact of high-temperature gas with the sound-absorbing cotton and improve safety.

[0013] As a further scheme of the utility model,

[0014] The air inlet cavity is installed on the base through a lock buckle around the air inlet cavity, the air outlet cavity is arranged on the upper end of the air inlet cavity, one side of the air outlet cavity is rotatably installed on the air inlet cavity through a flat joint hinge, and the other side is fixedly connected with the air inlet cavity through a lock buckle, so that personnel can open the air inlet cavity for maintenance; the upper end of the base is provided with a shelf plate, and the high-pressure fan is fixedly installed on the shelf plate through bolts.

[0015] As a further scheme of the utility model,

[0016] The air inlet cavity is installed on the base through a lock buckle around the air inlet cavity, the air outlet cavity is arranged on the upper end of the air inlet cavity, one side of the air outlet cavity is rotatably installed on the air inlet cavity through a flat joint hinge, and the other side is fixedly connected with the air inlet cavity through a lock buckle, so that personnel can open the air inlet cavity for maintenance; the upper end of the base is provided with a shelf plate, and the high-pressure fan is fixedly installed on the shelf plate through bolts.

[0017] As a further scheme of the utility model,

[0018] The control box comprises valve seats arranged side by side and a gas cylinder for controlling the on-off of the valve seats, the valve seat on one side of the control box is connected with a negative pressure port, the valve seat on the other side is connected with an air inlet silencer through an air inlet pipe, and the upper end of the valve seat is provided with an electromagnetic valve for controlling the action of the gas cylinder.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] The air inlet silencer is arranged in the air inlet cavity, and the noise of air suction is reduced by the air inlet silencer first, and then the noise is further isolated by the sound-absorbing cotton around the box, so that the noise generated by air inlet is effectively reduced.

[0021] The sound-absorbing box is provided with two cavities, the upper cavity is an air outlet cavity, the main noise source of the fan is the air outlet noise, the air outlet of the fan passes through the air outlet silencer in the scheme, the noise is reduced, and the gas is introduced into the air outlet cavity at the same time, the air outlet cavity is provided with an air passage partition plate, the air passage partition plate is provided with sound-absorbing cotton on the two sides, the air outlet flow of the fan flows through the air outlet flow passage, and the noise is gradually reduced to achieve the effect of reducing noise.

[0022] Air inlet fans and air outlet fans are arranged on the two sides of the air inlet cavity to accelerate air exchange, take out the high-temperature gas in the box, and blow the external normal-temperature gas to the surface of the fan to cool the surface of the fan.

[0023] The device covers the high-pressure fan in the box body to prevent the fan from scalding workers and to increase safety. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a three-dimensional structure schematic diagram of the utility model;

[0025] Fig. 2 It is an internal structure schematic diagram of the exhaust cavity of the utility model;

[0026] Fig. 3 It is an air inlet cavity structure schematic diagram of the utility model;

[0027] Fig. 4 It is an internal installation structure schematic diagram of the utility model;

[0028] In the drawing, 1 is a box body, 2 is a high-pressure fan, 3 is a control box, 4 is an air passage partition, 5 is an air inlet fan, 6 is an air outlet fan, 10 is a mounting plate, 11 is a base, 12 is an air inlet cavity, 13 is an exhaust cavity, 14 is an exhaust port, 15 is a sound-absorbing cotton board, 16 is a lock catch, 17 is a flat joint hinge, 18 is a shelf plate, 19 is a lifting ring, 21 is an air inlet silencer, 22 is an air outlet silencer, 23 is an air outlet guide elbow, 31 is a valve seat, 32 is an air cylinder, 33 is an air inlet pipe, 34 is an electromagnetic valve, and 35 is a negative pressure port. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0030] As shown in the drawings, Figs. 1-4

[0031] The embodiment provides a noise reduction box suitable for a high-pressure fan, which comprises a box body 1, the box body 1 comprises a base 11 and an air inlet cavity 12 mounted on the base 11, an exhaust cavity 13 arranged at the upper end of the air inlet cavity 12, a high-pressure fan 2 built-in in the air inlet cavity 12, an air inlet end of the high-pressure fan 2 connected with a control box 3, an air inlet silencer 21 and a negative pressure port 35 arranged on the control box 3, the air inlet silencer 21 built-in in the air inlet cavity, an air outlet end of the high-pressure fan 2 connected with an air outlet silencer 22, the air outlet silencer 22 provided with an air outlet guide elbow 23 at the outer end, the air outlet guide elbow 23 inserted into the exhaust cavity 13, and an S-shaped air outlet flow channel formed in the exhaust cavity 13 through an air passage partition 4 to reduce exhaust noise, and the box body 1 provided with a corresponding exhaust port 14 at the outer end.

[0032] Air inlet fans 5 and air outlet fans 6 are mounted at the two sides of the air inlet cavity 12 respectively to promote the airflow in the air inlet cavity 12 and reduce the temperature of the high-pressure fan 2. ​

[0033] In this embodiment, the exhaust guide elbow 23 is installed on one side of the exhaust flow channel, and the exhaust port 14 is installed on the side of the exhaust cavity 13 away from the exhaust guide elbow 23, so that the airflow passes through the exhaust flow channel, and the air channel partition plate 4 and the exhaust port 14 are respectively provided with sound-absorbing cotton boards 15 for gradually reducing noise.

[0034] The inner walls of the air inlet cavity 12 and the exhaust cavity 13 are respectively paved with sound-absorbing cotton boards 15, and the upper end surface of the base 11 is also provided with a sound-absorbing cotton board 15 to reduce airflow noise.

[0035] The outer end of the sound-absorbing cotton board 15 is provided with a high-temperature-resistant material to avoid direct contact of high-temperature gas with the sound-absorbing cotton and improve safety.

[0036] In this embodiment, the air inlet cavity 12 is installed on the base 11 through the lock buckle 16 around the air inlet cavity 12, and the air outlet cavity 13 is arranged on the upper end of the air inlet cavity 12. One side of the air outlet cavity 13 is rotatably installed on the air inlet cavity 12 through the flat joint hinge 17, and the other side is fixedly connected with the air inlet cavity 12 through the lock buckle 16, so as to facilitate personnel to open the air inlet cavity 12 for maintenance. The upper end of the base 11 is provided with a shelf plate 18, and the high-pressure fan 2 is fixedly installed on the shelf plate 18 through bolts.

[0037] The upper end of the air inlet cavity 12 is provided with a lifting ring 19, and the lower end of the base 11 is provided with a mounting plate 10, so as to facilitate the installation of the box body 1.

[0038] In this embodiment, the control box 3 includes a valve seat 31 and a cylinder 32 for controlling the on-off of the valve seat 31, one side of the control box 3 is connected with a negative pressure port 35 outside the valve seat 31, and the other side is connected with the air inlet silencer 21 through an air inlet pipe 33. The upper end of the valve seat 31 is provided with an electromagnetic valve 34 for controlling the action of the cylinder 32.

[0039] Specifically, the inner wall of the air inlet cavity 12 is provided with a sound-absorbing cotton board 15 to reduce the noise of the air inlet and the noise of the high-pressure fan 2. An air inlet fan 5 and an air outlet fan 6 are arranged in front of and behind the air inlet cavity 12, respectively. The air inlet fan 5 inhales normal temperature air to cool the surface of the high-pressure fan 2, and the air outlet fan 6 discharges the high-temperature gas in the air inlet cavity 12 to prevent the fan from being damaged due to high temperature. The high-pressure fan 2 is provided with an exhaust silencer 22, and an exhaust guide elbow 23 is arranged at the exhaust outlet of the exhaust silencer 22. The high-temperature gas in the high-pressure fan 2 is discharged into the exhaust cavity 13, and then discharged from the exhaust port 14 along the exhaust flow channel. The exhaust flow channel and the exhaust port 14 are provided with sound-absorbing cotton boards 15 to reduce the exhaust noise.

[0040] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents. It should be noted that in this document, if there are relationship terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

Claims

1. A noise reduction box suitable for high-pressure blowers, comprising a box body (1), characterized in that: The housing (1) includes a base (11) and an air intake chamber (12) installed on the base (11), and an exhaust chamber (13) set at the upper end of the air intake chamber (12). A high-pressure blower (2) is built into the air intake chamber (12). The air intake end of the high-pressure blower (2) is connected to a control box (3). The control box (3) is provided with an air intake silencer (21) and a negative pressure port (35). The air intake silencer (21) is built into the air intake chamber. The exhaust end of the high-pressure blower (2) is connected to an exhaust silencer (22). An exhaust guide elbow (23) is installed at the outer end of the exhaust silencer (22), and the exhaust guide elbow (23) is inserted into the exhaust chamber (13). An S-shaped exhaust flow channel is formed in the exhaust chamber (13) through an air passage partition (4). A corresponding exhaust port (14) is provided at the outer end of the housing (1). An intake fan (5) and an exhaust fan (6) are respectively installed on both sides of the intake cavity (12).

2. The noise reduction box for high-pressure blowers according to claim 1, characterized in that: The exhaust guide elbow (23) is installed on one side of the exhaust channel, and the exhaust port (14) is installed on the side of the exhaust chamber (13) away from the exhaust guide elbow (23) so that the airflow passes through the exhaust channel. The airway partition (4) and the exhaust port (14) are respectively provided with sound-absorbing cotton plates (15).

3. A noise reduction box suitable for high-pressure blowers according to claim 2, characterized in that: The inner walls of the air intake chamber (12) and the exhaust chamber (13) are respectively covered with sound-absorbing cotton plates (15), and the upper surface of the base (11) is also covered with sound-absorbing cotton plates (15).

4. A noise reduction box suitable for high-pressure blowers according to claim 3, characterized in that: The outer end of the sound-absorbing cotton board (15) is provided with a high-temperature resistant material to prevent high-temperature gas from directly contacting the sound-absorbing cotton.

5. A noise reduction box suitable for high-pressure blowers according to claim 1, characterized in that: The air intake chamber (12) is mounted on the base (11) around its perimeter by latches (16). The exhaust chamber (13) is mounted on the upper end of the air intake chamber (12). One side of the exhaust chamber (13) is rotatably mounted on the air intake chamber (12) by a flat hinge (17), and the other side is snapped and fixed to the air intake chamber (12) by latches (16). The upper end of the base (11) is provided with a frame plate (18), and the high-pressure blower (2) is fixedly mounted on the frame plate (18) by bolts.

6. A noise reduction box suitable for high-pressure blowers according to claim 5, characterized in that: The upper part of the air intake cavity (12) is provided with hanging rings (19) and the lower part of the base (11) is provided with mounting plates (10).

7. A noise reduction box suitable for high-pressure blowers according to claim 1, characterized in that: The control box (3) includes a valve seat (31) arranged in parallel and a cylinder (32) for controlling the opening and closing of the valve seat (31). One side of the valve seat (31) is connected to a negative pressure port (35), and the other side is connected to an intake muffler (21) through an intake pipe (33). The upper end of the valve seat (31) is provided with a solenoid valve (34) for controlling the action of the cylinder (32).

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