Ventilator sharing silencer

Abstract

The utility model discloses a ventilator sharing a silencer, which comprises an air distributor, a first fan and a second fan, the first fan and the second fan are respectively mounted on two ventilation pipelines of the air distributor, air inlet ports of the first fan and the second fan are connected to the same silencer, the silencer is a hollow cylinder with an upper opening and a lower opening, and the silencer is a hollow cylinder with an upper opening and a lower opening. The inner diameter of the silencer is larger than the diameter of an air inlet end opening of the first fan or the second fan, an upper opening and a lower opening of the silencer are both arranged to be hopper-shaped flaring openings and covered with a net cover, and air suction assemblies with the air direction facing the interior are arranged in the upper opening and the lower opening of the silencer. The upper opening and the lower opening of the silencer are both bucket-shaped flared openings, more outside air can enter the silencer at the same time, meanwhile, the bucket-shaped flared openings of the silencer are beneficial to installation of a larger air suction assembly, the air suction assembly further improves the air inlet amount of the silencer, it is ensured that the air inlet amount is larger than the air amount needed by a draught fan, and therefore the air flow speed is reduced, and the service life of the draught fan is prolonged. And the noise is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilators, in particular to a ventilator with a shared silencer. Background Art

[0002] In recent years, with the development of smart mines, the intelligence level of equipment has been continuously improved. Previously, a single local ventilator was connected to the wind duct cloth to supply air to the excavation face. Now, two ventilators are placed up and down through fixed brackets. The two fans are connected to the air divider, and the air divider is connected to the wind duct cloth. This realizes one fan in use and one in reserve, sharing a wind duct cloth. When one fan fails or needs to be reversed regularly, it can be quickly switched to another fan. It can be intelligentized when equipped with intelligent control equipment.

[0003] Due to the narrow space in the underground mine tunnels, there is no space for two fans to be placed horizontally, so they are generally placed up and down. Due to the height of the tunnels, the upper and lower fans are generally close to each other. The air inlet of the lower fan is very close to the bottom of the upper fan, which affects the air intake. As a result, the fan needs to be accelerated to ensure the air intake. The increased airflow velocity increases the noise.

[0004] For this reason, we propose a ventilator with a shared silencer. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a ventilator with a shared silencer, in which the upper and lower openings of the silencer are both bucket-shaped expansions, which are conducive to more outside air entering the interior of the silencer at the same time. At the same time, the bucket-shaped expansion of the silencer is conducive to the installation of a larger air suction component, which further increases the air intake of the silencer, ensuring that the air intake is greater than the required air volume of the fan, thereby reducing the air flow velocity and reducing noise.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a ventilator sharing a muffler, comprising an air distributor and a first fan and a second fan respectively installed in two ventilation ducts of the air distributor, the air inlet ports of the first fan and the second fan being connected to the same muffler, the muffler being a hollow cylinder with upper and lower openings;

[0007] The inner diameter of the muffler is larger than the diameter of the air inlet port of the first fan or the second fan;

[0008] The upper and lower openings of the muffler are both arranged to be bucket-shaped expansions and covered with mesh covers. The upper and lower openings of the muffler are both arranged with air suction components with the wind direction facing inwards.

[0009] Preferably, the air suction assembly includes a shaft, fan blades, a motor and a sleeve, wherein two sleeves are designed and are respectively arranged on the central axis inside the upper and lower ends of the muffler, a support rod is connected between the outer wall of the sleeve and the inner wall of the muffler, the shaft is sleeved inside the sleeve and are rotatably connected to each other, the fan blades are arranged inside the outer port of the muffler and connected to the end of the shaft, and the motor is arranged outside the muffler and is transmission-connected to the other end of the shaft.

[0010] Preferably, the end of the shaft away from the fan blades is located inside the middle section of the muffler and is connected to a driven gear. The motor is arranged on the outer wall of the middle section of the muffler, and the output shaft penetrates the muffler and is connected to a driving gear. The driving gear and the muffler are both bevel gears, and the driving gear is meshed with the two mufflers at the same time.

[0011] Preferably, the outer side wall of the muffler is connected to a fixing frame supporting the motor.

[0012] Preferably, a soundproof cover covering the motor is provided on the inner side of the fixing frame.

[0013] Preferably, the mesh cover and the opening of the muffler are detachably connected, specifically, are sleeved.

[0014] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0015] The inner diameter of the muffler is larger than the air inlet port of the fan, ensuring that the air intake of the muffler is greater than the upper limit of the required air volume of the fan. The upper and lower openings of the muffler are both bucket-shaped expansions, which is conducive to more external air entering the muffler at the same time. The mesh cover of the muffler opening filters out larger impurities in the air to avoid damage to the fan caused by entering with the air. The suction component actively introduces air into the muffler, accelerates the flow of air, and thus offsets the negative impact of the mesh cover on the reduction of the muffler opening. At the same time, the bucket-shaped expansion of the muffler is conducive to the installation of a larger suction component, which further increases the air intake of the muffler, ensuring that the air intake is greater than the required air volume of the fan, thereby reducing the air flow velocity and reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the silencer of the utility model.

[0018] Figure 3 This is a schematic diagram of the gear installation of the utility model.

[0019] Figure 4 This is a schematic diagram of the shaft rod installation of the utility model.

[0020] Among them: 1. air distributor; 2. first fan; 3. second fan; 4. muffler; 5. bushing; 6. fan blade; 7. shaft; 8. motor; 9. driving gear; 10. driven gear; 11. mesh cover; 12. sound insulation cover; 13. fixing bracket; 14. support rod. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0022] Example

[0023] Please refer to Figure 1 , Figure 2 and Figure 4 As shown, the utility model provides a ventilator with a shared silencer, comprising an air divider 1 and two ventilation ducts of the air divider 1 respectively installed with a first fan 2 and a second fan 3, the air inlet ports of the first fan 2 and the second fan 3 are connected to the same silencer 4, the silencer 4 is a hollow cylinder with upper and lower openings, the inner diameter of the silencer 4 is larger than the diameter of the air inlet port of the first fan 2 or the second fan 3, the upper and lower openings of the silencer 4 are both arranged to be bucket-shaped expansions, and are covered with a mesh cover 11, the mesh cover 11 and the opening of the silencer 4 are detachably connected, specifically sleeved, the upper and lower openings of the silencer 4 are both arranged with an air suction component with the wind direction facing inward, the inner diameter of the silencer 4 is larger than the air inlet port of the fan to ensure the silencer 4 The air intake volume is greater than the upper limit of the required air volume of the fan to avoid the muffler 4 interfering with the normal air intake volume of the fan. The upper and lower openings of the muffler 4 are both bucket-shaped expansions, which is conducive to more external air entering the muffler 4 at the same time. The mesh cover 11 of the opening of the muffler 4 filters out larger impurities in the air to avoid damage to the fan caused by the air entering the fan. The suction component actively introduces air into the muffler 4 to accelerate the flow of air and offset the negative impact of the mesh cover 11 on the reduction of the opening of the muffler 4. At the same time, the bucket-shaped expansion of the muffler 4 is conducive to the installation of a larger suction component. The suction component further increases the air intake volume of the muffler 4 to ensure that the air intake volume is greater than the required air volume of the fan, thereby reducing the air flow velocity and reducing noise.

[0024] like Figure 2 , Figure 3 and Figure 4As shown, the utility model discloses an air suction component including a shaft rod 7, a fan blade 6, a motor 8 and a sleeve 5. The sleeve 5 is designed with two and is respectively arranged on the inner central axis of the upper and lower ends of the muffler 4. A support rod 14 is connected between the outer wall of the sleeve 5 and the inner wall of the muffler 4. The shaft rod 7 is sleeved inside the sleeve 5 and is rotatably connected to each other. The fan blade 6 is arranged inside the outer port of the muffler 4 and connected to the end of the shaft rod 7. The motor 8 is arranged outside the muffler 4 and is transmission-connected to the other end of the shaft rod 7.

[0025] like Figure 3 As shown, the utility model discloses that one end of the shaft rod 7 away from the fan blade 6 is located inside the middle section of the muffler 4 and is connected to a driven gear 10, the motor 8 is arranged on the outer wall of the middle section of the muffler 4, and the output shaft penetrates the muffler 4 and is connected to a driving gear 9, the driving gear 9 and the muffler 4 are both bevel gears, and the driving gear 9 is meshed with two mufflers 4 at the same time.

[0026] like Figure 2 and Figure 3 As shown, the utility model discloses that the outer wall of the muffler 4 is connected to a fixing frame 13 supporting the motor 8 , and the inner side of the fixing frame 13 is provided with a soundproof cover 12 covering the motor 8 .

[0027] The utility model provides a ventilator with a shared silencer, in which the inner diameter of the silencer 4 is larger than the air inlet port of the fan, ensuring that the air intake of the silencer 4 is larger than the upper limit of the required air volume of the fan, thereby preventing the silencer 4 from interfering with the normal air intake of the fan. The upper and lower openings of the silencer 4 are both bucket-shaped expansions, which is conducive to more external air entering the silencer 4 at the same time. The mesh cover 11 of the opening of the silencer 4 filters out larger impurities in the air, thereby preventing damage to the fan caused by entering with the air. The air suction component actively introduces air into the silencer 4, accelerates the flow of air, and thus offsets the negative impact of the mesh cover 11 on the reduction of the opening of the silencer 4. At the same time, the bucket-shaped expansion of the silencer 4 is conducive to the installation of a larger air suction component, which further increases the air intake of the silencer 4, ensuring that the air intake is larger than the required air volume of the fan, thereby reducing the air flow velocity and reducing the noise.

[0028] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ventilator with a common silencer, comprising an air divider (1) and a first fan (2) and a second fan (3) respectively installed in two ventilation ducts of the air divider (1), characterized in that: The air inlet ports of the first fan (2) and the second fan (3) are connected to the same muffler (4), and the muffler (4) is a hollow cylinder with upper and lower openings; The inner diameter of the muffler (4) is larger than the diameter of the air inlet port of the first fan (2) or the second fan (3); The upper and lower openings of the muffler (4) are both arranged to be bucket-shaped expansions and are covered with a mesh cover (11); and air suction components with the wind direction facing inwards are arranged in the upper and lower openings of the muffler (4).

2. A ventilator with a common silencer according to claim 1, characterized in that: The air suction assembly comprises a shaft (7), a fan blade (6), a motor (8) and a shaft sleeve (5); the shaft sleeve (5) is designed with two and is respectively arranged on the central axis inside the upper and lower ends of the muffler (4); a support rod (14) is connected between the outer wall of the shaft sleeve (5) and the inner wall of the muffler (4); the shaft (7) is sleeved inside the shaft sleeve (5) and is rotatably connected to each other; the fan blade (6) is arranged inside the outer port of the muffler (4) and is connected to the end of the shaft (7); and the motor (8) is arranged outside the muffler (4) and is drivingly connected to the other end of the shaft (7).

3. A ventilator with a common silencer according to claim 2, characterized in that: One end of the shaft (7) away from the fan blade (6) is located inside the middle section of the muffler (4) and is connected to a driven gear (10). The motor (8) is arranged on the outer wall of the middle section of the muffler (4), and the output shaft penetrates the muffler (4) and is connected to a driving gear (9). The driving gear (9) and the muffler (4) are both bevel gears, and the driving gear (9) is meshed with the two mufflers (4) at the same time.

4. The ventilator with a common silencer according to claim 1, characterized in that: The outer side wall of the muffler (4) is connected to a fixing frame (13) that supports the motor (8).

5. The ventilator with a common silencer according to claim 4, characterized in that: A soundproof cover (12) is provided on the inner side of the fixing frame (13) and covers the motor (8).

6. The ventilator with a common silencer according to claim 1, characterized in that: The mesh cover (11) and the opening of the muffler (4) are detachably connected, specifically, are sleeved.

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