阅读说明：本技术 高压风机消声器及其控制系统 (High pressure positive blower silencer and control system thereof ) 是由 张际洲 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种高压风机消声器及其控制系统,包括支撑组件、消声组件和除尘组件,支撑组件的扩张室、第一壳体和第二壳体依次安装在底座上,消声组件的吸声层设置在扩张室内,第一吸声组片和第二吸声组片分分别设置在第一壳体和第二壳体内,其中第一吸声组片通过调节螺杆和调节电机可滑动,滑动板设置在第一吸声组片和所述第二吸声组片之间,除尘组件的过滤网通过过滤架设置在扩张室一侧。通过过滤架上的过滤网对进入扩张室的空气进行过滤,去除空气中的杂质,在降噪的同时可以移动第一支撑板调整进气口径,从而调整进风量使得使用更加方便,无需在进风的风机本身上安装控制组件,从而可以节省成本。(The invention discloses a high-pressure fan silencer and a control system thereof, which comprise a supporting component, a silencing component and a dedusting component, wherein an expansion chamber, a first shell and a second shell of the supporting component are sequentially arranged on a base, a sound absorption layer of the silencing component is arranged in the expansion chamber, a first sound absorption component and a second sound absorption component are respectively arranged in the first shell and the second shell, the first sound absorption component can slide through an adjusting screw and an adjusting motor, a sliding plate is arranged between the first sound absorption component and the second sound absorption component, and a filter screen of the dedusting component is arranged on one side of the expansion chamber through a filter frame. The air entering the expansion chamber is filtered through the filter screen on the filter frame, impurities in the air are removed, the first support plate can be moved to adjust the air inlet aperture while noise is reduced, so that the air inlet amount is adjusted to enable the use to be more convenient, a control assembly does not need to be installed on the air inlet fan, and the cost can be saved.)

1. A silencer of a high-pressure fan is characterized in that,

the silencer comprises a supporting component, a silencing component and a dedusting component, wherein the supporting component comprises a base, a first shell, a second shell and an expansion chamber, the expansion chamber is provided with an air inlet, the expansion chamber is fixedly connected with the base and is positioned on one side of the base, the first shell is fixedly connected with the expansion chamber and is positioned on one side of the expansion chamber, the second shell is detachably connected with the first shell and is positioned on one side of the first shell far away from the expansion chamber, the silencing component comprises a sound absorption layer, a first sound absorption sheet, an adjusting screw rod, an adjusting motor, a sliding plate and a second sound absorption sheet, the sound absorption layer is fixedly connected with the expansion chamber and is positioned in the expansion chamber, the first sound absorption sheet comprises a first supporting plate and a plurality of first sound absorption sheets, the first supporting plate is provided with a plurality of first groove plates, and the first sound absorption sheets are detachably connected with the first groove plates respectively, and is located one side of the first frid, the first supporting plate is connected with the first shell in a sliding way and is located in the first shell, the adjusting screw is connected with the first supporting plate in a threaded way and is rotationally connected with the first shell, the output shaft of the adjusting motor is fixedly connected with the adjusting screw and is located one side of the first shell, the second sound absorption sheet comprises a second supporting plate and a plurality of second sound absorption sheets, the second supporting plate is provided with a plurality of second frids, the plurality of second sound absorption sheets are respectively connected with the plurality of second frids in a detachable way and are located in the second frids, the sliding plate is connected with the first frids and the second frids in a sliding way and is located one side of the first frids and the second frids, the dust removal component comprises a filter frame and a filter screen, and the filter frame is fixedly connected with the expansion chamber, and the filter screen is detachably connected with the filter frame and is positioned at the air inlet.

2. The silencer of claim 1, wherein,

the base comprises a base body and a damping spring, wherein the damping spring is fixedly connected with the base body and is positioned on one side of the base body.

3. The silencer of claim 2, wherein,

the supporting component further comprises a mounting plate, the mounting plate is fixedly connected with the damping spring and is located on one side, away from the base, of the damping spring.

4. The silencer of claim 1, wherein,

the first shell is provided with a positioning column, the second shell is provided with a positioning groove, and the positioning column is located in the positioning groove.

5. The silencer of claim 4, wherein,

the support assembly further comprises a sealing ring, and the sealing ring is fixedly connected with the first shell and is located between the first shell and the second shell.

6. The silencer of claim 5, wherein,

the first sound absorption unit piece further comprises a plurality of stop plates, and the stop plates are fixedly connected with the first groove plates respectively and located on one side of the sliding plate.

7. A control system of a silencer of a high pressure blower comprising a silencer of a high pressure blower according to any one of claims 1 to 6,

still include controller, flow rate sensor and noise sensor, the controller with the accommodate motor electricity is connected, and is located one side of second casing, flow rate sensor with noise sensor respectively with second casing fixed connection, and be located in the second casing, and with the controller electricity is connected.

Technical Field

The invention relates to the field of silencers, in particular to a high-pressure fan silencer and a control system thereof.

Background

The large-scale fan has wide application in industrial production, and is often adopted to continuously ventilate a factory and a mine site in the production process in a plurality of fields such as ship manufacturing industry, mineral exploitation industry, energy production industry, manufacturing and processing industry of large-scale equipment and the like. Because the large fan is large in size, the large fan always keeps continuous operation in work, noise pollution can be continuously generated, particularly, the noise pollution possibly generated around the positions of an air inlet and an air outlet of a ventilation pipeline is as high as 110 to 120 decibels, the upper limit index of limiting industrial noise to 90 decibels in international organization for standardization and relevant industrial construction standards in China is greatly exceeded, and normal work of people is greatly influenced.

The existing silencer can only reduce the noise of the fan, and cannot control the air inlet volume of the fan, so that the use cost is increased.

Disclosure of Invention

The invention aims to provide a high-pressure fan silencer and a control system thereof, and aims to solve the problem that the existing equipment can only reduce noise of a fan and cannot control the air inlet volume of the fan.

In order to achieve the above object, in a first aspect, the present invention provides a high pressure fan silencer, including a support assembly, a silencing assembly and a dust-removing assembly, where the support assembly includes a base, a first casing, a second casing and an expansion chamber, the expansion chamber has an air inlet, the expansion chamber is fixedly connected to the base and located at one side of the base, the first casing is fixedly connected to the expansion chamber and located at one side of the expansion chamber, the second casing is detachably connected to the first casing and located at one side of the first casing far from the expansion chamber, the silencing assembly includes a sound-absorbing layer, a first sound-absorbing sheet, an adjusting screw, an adjusting motor, a sliding plate and a second sound-absorbing sheet, the sound-absorbing layer is fixedly connected to the expansion chamber and located in the expansion chamber, the first sound-absorbing sheet includes a first support plate and a plurality of first sound-absorbing sheets, the first support plate is provided with a plurality of first groove plates, the first sound absorption sheets are respectively detachably connected with the first groove plates and are positioned on one side of the first groove plates, the first support plate is slidably connected with the first shell and is positioned in the first shell, the adjusting screw is in threaded connection with the first support plate and is rotatably connected with the first shell, the output shaft of the adjusting motor is fixedly connected with the adjusting screw and is positioned on one side of the first sound absorption shell, the second sound absorption sheet group comprises a second support plate and a plurality of second sound absorption sheets, the second support plate is provided with a plurality of second groove plates, the second sound absorption sheets are respectively detachably connected with the second groove plates and are positioned in the second groove plates, the sliding plate is slidably connected with the first groove plates and the second groove plates and is positioned on one side of the first groove plates and one side of the second groove plates, the dust removal component comprises a filter frame and a filter screen, the filter frame is fixedly connected with the expansion chamber and is positioned on one side of the expansion chamber, and the filter screen is detachably connected with the filter frame and is positioned at the air inlet.

The base comprises a base body and a damping spring, wherein the damping spring is fixedly connected with the base body and is positioned on one side of the base body.

Wherein, supporting component still includes the mounting panel, the mounting panel with damping spring fixed connection, and be located damping spring keeps away from one side of pedestal.

The first shell is provided with a positioning column, the second shell is provided with a positioning groove, and the positioning column is located in the positioning groove.

The supporting assembly further comprises a sealing ring, and the sealing ring is fixedly connected with the first shell and is located between the first shell and the second shell.

The first sound absorption unit piece further comprises a plurality of stop plates, and the stop plates are fixedly connected with the first groove plates respectively and located on one side of the sliding plate.

In a second aspect, the present invention further provides a control system for a silencer of a high pressure fan, including: high pressure positive blower silencer/controller, velocity of flow sensor and noise sensor, the controller with the accommodate motor electricity is connected, and is located one side of second casing, velocity of flow sensor with noise sensor respectively with second casing fixed connection, and be located in the second casing, and with the controller electricity is connected.

According to the silencer and the control system of the high-pressure fan, air enters the expansion chamber from the air inlet and is subjected to primary noise reduction through increasing the cross-sectional area, the first shell is fixedly connected with the expansion chamber, the second shell is detachably connected with the first shell, the sound absorption layer is fixedly connected with the expansion chamber and is positioned in the expansion chamber and can absorb noise in the expansion chamber, the first sound absorption sheets are detachably connected with the first groove plates respectively, the first support plate is connected with the first shell in a sliding manner, the noise passing through the first shell can be reflected and absorbed through the first sound absorption sheets, the adjusting screw rod is in threaded connection with the first support plate, the output shaft of the adjusting motor is fixedly connected with the adjusting screw rod, and the adjusting screw rod is driven to rotate through rotating the adjusting motor, the first support plate can be driven to slide up and down, the second sound absorption sheets are respectively detachably connected with the second groove plates, air enters the second shell, noise is absorbed by the second sound absorption sheets again, the sliding plate is slidably connected with the first groove plates and the second groove plates, the connecting part of the first sound absorption sheets and the second sound absorption sheets is transited through the sliding plate, the noise increase caused by sudden change of the cross section is avoided, the filter frame is fixedly connected with the expansion chamber, the filter screen is detachably connected with the filter frame and is positioned at the air inlet, the air entering the expansion chamber can be filtered through the filter screen arranged on the filter frame, so that impurities and moisture in the air are removed, the internal sound absorption materials are prevented from being blocked by impurities such as water molecules, and the noise reduction effect is reduced, thereby can through removing when making an uproar fall the first backup pad adjustment bore of admitting air to adjustment intake makes and uses more convenient, need not to install control assembly on the fan of air inlet itself, thereby can save the cost, thereby solve current equipment and can only fall the fan and make an uproar, the problem of the intake of uncontrollable fan.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a left side structural view of a control system of a high pressure fan muffler of the present invention;

FIG. 2 is a right side structural view of a control system of a high pressure fan muffler of the present invention;

FIG. 3 is a schematic cross-sectional view of FIG. 2;

FIG. 4 is a schematic cross-sectional view of a control system for a high pressure fan muffler of the present invention;

fig. 5 is a partially enlarged view a of fig. 4.

1-supporting component, 2-silencing component, 3-dedusting component, 4-controller, 5-flow velocity sensor, 6-noise sensor, 11-base, 12-first shell, 13-second shell, 14-expansion chamber, 15-mounting plate, 16-sealing ring, 21-sound absorption layer, 22-first sound absorption component, 23-adjusting screw, 24-adjusting motor, 25-sliding plate, 26-second sound absorption component, 31-filter frame, 32-filter screen, 111-seat body, 112-damping spring, 121-positioning column, 131-positioning groove, 141-air inlet, 221-first supporting plate, 222-first sound absorption component, 223-first groove plate, 224-stopping plate, 251-first sliding rod, 252-a second sliding rod, 253-a plate body, 261-a second supporting plate, 262-a second sound absorption sheet, 263-a second groove plate, 311-a frame body, 312-a baffle plate and 313-a stop lever.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 5, the present invention provides a silencer for a high pressure fan, including:

the support assembly 1 comprises a base 11, a first shell 12, a second shell 13 and an expansion chamber 14, the expansion chamber 14 is provided with an air inlet 141, the expansion chamber 14 is fixedly connected with the base 11 and is positioned at one side of the base 11, the first shell 12 is fixedly connected with the expansion chamber 14 and is positioned at one side of the expansion chamber 14, the second shell 13 is detachably connected with the first shell 12 and is positioned at one side of the first shell 12 far away from the expansion chamber 14, the sound attenuation assembly 2 comprises a sound absorption layer 21, a first sound absorption sheet 22, an adjusting screw 23, an adjusting motor 24, a sliding plate 25 and a second sound absorption sheet 26, the sound absorption layer 21 is fixedly connected with the expansion chamber 14 and is positioned in the expansion chamber 14, the first sound absorption sheet 22 comprises a first support plate 221 and a plurality of first sound absorption sheets 222, the first support plate 221 has a plurality of first groove plates 223, a plurality of first sound absorbing pieces 222 are detachably connected to the plurality of first groove plates 223, respectively, and are located at one side of the first groove plates 223, the first support plate 221 is slidably connected to the first housing 12, and is located in the first housing 12, the adjusting screw 23 is screw-connected to the first support plate 221, and is rotatably connected to the first housing 12, an output shaft of the adjusting motor 24 is fixedly connected to the adjusting screw 23, and is located at one side of the first housing 12, the second sound absorbing sheet 26 includes a second support plate 261 and a plurality of second sound absorbing pieces 262, the second support plate 261 has a plurality of second groove plates 263, a plurality of second sound absorbing pieces 262 are detachably connected to the plurality of second groove plates 263, respectively, and are located in the second groove plates 263, the sliding plate 25 is slidably connected to the first groove plates 223 and the second groove plates 263, and is located on one side of the first trough plate 223 and the second trough plate 263, the dust removing assembly 3 includes a filter frame 31 and a filter screen 32, the filter frame 31 is fixedly connected with the expansion chamber 14 and is located on one side of the expansion chamber 14, and the filter screen 32 is detachably connected with the filter frame 31 and is located at the air inlet 141.

In this embodiment, the support assembly 1 includes a base 11, a first housing 12, a second housing 13, and an expansion chamber 14, the expansion chamber 14 has an air inlet 141, air enters the expansion chamber 14 from the air inlet 141, noise is reduced for the first time by increasing a cross-sectional area, the first housing 12 is fixedly connected with the expansion chamber 14 and is located at one side of the expansion chamber 14, the second housing 13 is detachably connected with the first housing 12 and is located at one side of the first housing 12 away from the expansion chamber 14, noise reduction components are respectively installed inside the first housing 12 and the second housing 13, the noise reduction assembly 2 includes a sound absorption layer 21, a first sound absorption set piece 22, an adjustment screw 23, an adjustment motor 24, a sliding plate 25 and a second sound absorption set piece 26, the sound absorption layer 21 is fixedly connected with the expansion chamber 14 and is located in the expansion chamber 14, the sound absorption layer 21 is made of an organic fiber material, a felt of hemp and cotton, an inorganic fiber material, etc. and can absorb noise in the expansion chamber 14, the first sound absorption sheet 22 includes a first support plate 221 and a plurality of first sound absorption sheets 222, the first support plate 221 has a plurality of first groove plates 223, the plurality of first sound absorption sheets 222 are detachably connected to the plurality of first groove plates 223 and are located at one side of the first groove plates 223, the first support plate 221 is slidably connected to the first housing 12 and is located in the first housing 12, noise passing through the first housing 12 can be reflected and absorbed by the plurality of first sound absorption sheets 222, the adjusting screw 23 is screwed to the first support plate 221 and is rotatably connected to the first housing 12, an output shaft of the adjusting motor 24 is fixedly connected to the adjusting screw 23, and is located at one side of the first casing 12, the adjusting screw 23 is driven to rotate by rotating the adjusting motor 24, so as to drive the first supporting plate 221 to slide up and down, the second sound absorbing sheet 26 includes a second supporting plate 261 and a plurality of second sound absorbing sheets 262, the second supporting plate 261 has a plurality of second grooved plates 263, the plurality of second sound absorbing sheets 262 are respectively detachably connected with the plurality of second grooved plates 263 and are located in the second grooved plates 263, air enters into the second casing 13, noise is absorbed again by the second sound absorbing sheets 262, the sliding plate 25 is slidably connected with the first grooved plates 223 and the second grooved plates 263 and is located at one side of the first grooved plates 223 and the second grooved plates 263, the joint of the first sound absorbing sheet 222 and the second sound absorbing sheets 262 is transited by the sliding plate 25, so as to avoid noise increase due to abrupt change of cross section, the dust removing assembly 3 comprises a filter frame 31 and a filter screen 32, the filter frame 31 is fixedly connected with the expansion chamber 14, and is located at one side of the expansion chamber 14, the filter screen 32 is detachably connected with the filter frame 31 and is located at the air inlet 141, the air entering the expansion chamber 14 can be filtered by the filter net 32 installed on the filter frame 31, thereby removing impurities and moisture in the air, avoiding the noise reduction effect of the internal sound absorption material from being blocked by impurities such as water molecules and the like, so that the diameter of the air inlet 141 can be adjusted by moving the first support plate 221 while reducing noise, thereby adjusting the air inlet amount to ensure more convenient use, without installing a control component on the air inlet fan, thereby can save the cost to solve current equipment and can only fall the problem of making an uproar, the air intake of uncontrollable fan.

Further, the base 11 includes a seat 111 and a damping spring 112, and the damping spring 112 is fixedly connected to the seat 111 and is located on one side of the seat 111.

In this embodiment, the vibration damping spring 112 is disposed on the seat body 111 to contact with the mounting surface, so that vibration during operation can be reduced, noise generated during operation can be reduced, and noise reduction effect can be improved.

Further, the support assembly 1 further includes a mounting plate 15, where the mounting plate 15 is fixedly connected to the damping spring 112 and is located on a side of the damping spring 112 far away from the seat 111.

In the present embodiment, the mounting plate 15 has a plurality of mounting holes, so that the seat body 111 and the external mounting surface can be more easily connected by the mounting plate 15.

Further, the first casing 12 has a positioning column 121, the second casing 13 has a positioning slot 131, and the positioning column 121 is located in the positioning slot 131.

In this embodiment, when the first casing 12 and the second casing 13 are installed, it may be difficult to perform accurate alignment, so that the installation is difficult, and therefore, the positioning column 121 and the positioning groove 131 are provided to be matched, so that the assembly is simpler.

Further, the support assembly 1 further includes a sealing ring 16, and the sealing ring 16 is fixedly connected to the first housing 12 and is located between the first housing 12 and the second housing 13.

In the present embodiment, the sealing performance at the joint of the first casing 12 and the second casing 13 can be enhanced by the sealing ring 16, thereby improving the noise reduction capability.

Further, the first sound absorbing assembly 22 further includes a plurality of stop plates 224, and the stop plates 224 are respectively fixedly connected to the first groove plates 223 and located on one side of the sliding plate 25.

In the present embodiment, the stop plate 224 can limit the sliding position of the sliding plate 25, so as to prevent the sliding plate 25 from sliding out, thereby improving the noise reduction effect.

Further, the sliding plate 25 includes a first sliding rod 251, a second sliding rod 252 and a plate body 253, the first sliding rod 251 and the second sliding rod 252 are slidably connected with the first slotted plate 223 and the second slotted plate 263 respectively and are located at one side of the first slotted plate 223 and the second slotted plate 263, and the plate body 253 is rotatably connected with the first sliding rod 251 and the second sliding rod 252 and is located between the first sliding rod 251 and the second sliding rod 252.

In this embodiment, the first slide bar 251 and the second slide bar 252 are respectively slidable in the first groove plate 223 and the second groove plate 263, so that the plate 253 can be slid relative to each other when the first housing 12 is moved, thereby smoothing a transition surface and reducing noise.

Further, the filter frame 31 includes a frame body 311, a baffle 312 and a stop lever 313, the baffle 312 is fixedly connected to the frame body 311 and is located on one side of the frame body 311, and the stop lever 313 is rotatably connected to the frame body 311 and is located on one side of the baffle 312.

In this embodiment, the baffle 312 has a mounting groove, and the filter screen 32 can be fixed in the frame body 311 by pressing the stop bar 313, so that the mounting and dismounting are more convenient.

In a second aspect, the present invention further provides a high pressure fan muffler control system, including: high-pressure positive blower silencer, controller 4, velocity of flow sensor 5 and noise sensor 6, controller 4 with accommodate motor 24 electricity is connected, and is located one side of second casing 13, velocity of flow sensor 5 with noise sensor 6 respectively with second casing 13 fixed connection, and be located in the second casing 13, and with controller 4 electricity is connected.

In the present embodiment, the basic state of the incoming gas is determined by the controller 4 by analyzing the flow rate and speed of the gas flowing into the second housing 13; the controller 4 drives the adjusting screw to move according to the movement signal by comparing the basic state with a predetermined reference value, thereby moving the first support plate 221 up and down to adjust the intake air amount, thereby reducing noise. And the exhaust noise is reduced by the controller 4 by controlling the interval of the baffle 312, so that the adjustment control is more automatic and convenient.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.