CN116677652A - Sectional type air suspension air blower - Google Patents

Abstract

The invention discloses a sectional type air suspension blower, belongs to the field of air suspension blowers, and aims to solve the problems that a large box body of a traditional air suspension blower is not easy to seal, noise is not easy to control, a filter is frequently replaced, maintenance is inconvenient and the like; the sectional type air suspension blower comprises a plurality of sections of independent box bodies such as a filtering noise reduction box part, a main machine main body part, a main electric box part and the like, the sections of independent box bodies are processed according to the needs respectively and then combined into a complete machine capable of running, wherein the filtering noise reduction box part and the main electric box part are small in size and easy to seal, filter, reduce noise and the like, and the main machine main body part with the largest proportion is in a natural state without sealing; the sectional type air suspension blower can be applied to industries such as sewage treatment, cultivation, cement and the like.

Description

Sectional type air suspension air blower

Technical Field

The invention belongs to the field of air suspension blowers, and particularly relates to a sectional air suspension blower.

Background

The operation of the air suspension blower is that a motor shaft is driven by a high-speed permanent magnet motor supported by an air bearing to rotate by a ternary centrifugal impeller, so that the conversion and the transportation of the flow and the pressure of the air are realized. The air bearing and the ternary centrifugal impeller and other core components have high requirements on the cleanliness of gas, particularly the air bearing has high requirements on the filtration of the gas entering the internal contact of the air bearing, and the filtration requirement of the air passing through the ternary centrifugal impeller is usually less than 1 micron particle, but the air passing through the ternary centrifugal impeller has not high requirements, and the air can normally run even if the air passes through about 10 microns particles.

The conventional air suspension blower in the market at present is basically characterized in that all core components are all assembled in a large box, for example, the Chinese patent application published in publication No. CN113217427A is an oil-free air suspension blower device, a first air chamber 13 and a second air chamber 14 of the air suspension blower device are mutually communicated through a heat dissipation guide opening 17, the box comprising the two air chambers 13 and 14 is required to be sealed except a heat dissipation air outlet because the requirements of core weight-closing components are required to be taken care of, so that the large space environment in the box is required to be manufactured according to the requirements of the core key components, the sealing difficulty is high, and the sealing requirement of a filtering part is necessarily improved correspondingly. Because the appearance of the case is larger, the whole manufacturing process is more complicated, and especially the whole tightness is difficult to manufacture, finally, the situations of high cost, large leakage and the like can still occur. After practice verifies that after the whole machine runs for a period of time, dust in the box is increased, and the dust is sucked into the main machine by the blower of the conventional internal air cooling heat dissipation principle, so that the performance is influenced, and the service life is shortened.

The conventional air suspension blower considers the filtering requirement of an air bearing, and all air inlets are always filtered and all filters are installed according to the highest level, the initial wind resistance of a medium-efficiency filter meeting the requirement is not higher than 100pa according to the resistance parameter of the rated air quantity of the GB/T14295 filter, the final resistance is not higher than 300pa, the filtering precision is 0.5 mu m, and the blocking alarm replacement can be realized in a short time under the condition that the size of a case is unchanged according to the flow of a normal blower, so that the replacement cost is high, the performance use and the user experience are influenced, and the filtering 'medicine-to-medicine' can not be done.

According to practical measurement and observation, about 90% of the noise source of the air suspension blower comes from the air inlet and the air outlet of the impeller end, the air outlet of the impeller end is generally externally connected with a user pipeline, a silencer can be added outside to perform noise reduction treatment, but the air inlet is arranged in the box body, so that the whole box body is required to have low noise, the whole box body is required to be subjected to sound absorption/insulation treatment, the air inlet filter opening is further required to be specially designed to perform noise reduction treatment, for example, an oil-free air suspension blower device disclosed in Chinese patent application (publication No. CN 113217427A) is provided, the noise reduction and elimination box 4 is only arranged at the air outlet of the motor heat dissipation and exhaust pipe 26 which is not the maximum noise source, the noise reduction mode is far from being enough, and because after the frequency converter 3 is arranged in the first air chamber 13, the external normal-temperature air can be obviously increased, and the heated air enters the core component in the main body after entering the second air chamber 14, and the cooling effect is quite undesirable.

The large box body has larger space, so that the natural consumption of the sound absorbing material is more, the whole installation is complicated, and the material cost and the labor cost are high; the box is also internally provided with other parts such as a host computer and the like which need to be normally installed, the layout design of the noise reduction part is blocked, the final noise reduction effect is not ideal, and the real industry 'mute fan' (within 80 dB) is not achieved, so that the market competitiveness is lacking.

Disclosure of Invention

The invention aims to solve the problems that a large box body of a traditional air suspension blower is difficult to seal, noise is difficult to control, a filter of the large box body is frequently replaced, maintenance is inconvenient and the like.

The invention discloses a sectional type air suspension blower which comprises a plurality of sections of independent box bodies such as a filtering noise reduction box part, a main machine main body part, a main electric box part and the like; the multi-section independent boxes are respectively processed according to the needs and then combined into a complete machine capable of running; the main body part of the main machine occupies the largest proportion and is made into a natural state of being not sealed integrally; the main body part of the main machine comprises a core component impeller in the main machine and an air bearing for supporting the rotating shaft of the impeller; the front end of the main machine is provided with a main air inlet pipeline, and the air outlet end of the main machine is provided with a main air outlet pipeline; the rear end of the host is provided with a heat radiation air inlet pipeline and a heat radiation air outlet pipeline; the box body of the filtering noise reduction box part is only provided with a main air inlet and a pipe orifice of a main air inlet pipeline which is arranged in the main body part of the main machine; when the pipe orifice of the main air inlet pipe extends into the filtering noise reduction box part, the box body of the filtering noise reduction box part is sealed except for a main air inlet; only an air inlet for heat dissipation inside the host and another pipe orifice of a heat dissipation air inlet pipe arranged on the main body of the host are arranged on the main electric box; when the pipe orifice of the heat radiation air inlet pipe extends into the main electric box part, the box body of the main electric box part is in a sealing state except for an air inlet for heat radiation inside the host; the box body of the main body part of the main machine is in a natural state of being not sealed integrally, and ensures that the gas coming from the main air inlet direction is only discharged from the main air outlet pipeline, and the gas coming from the heat dissipation air inlet pipeline is only discharged from the heat dissipation air outlet pipeline.

Further preferably, a primary filter is arranged at the main air inlet of the filtering noise reduction box part; a filter is arranged at the heat radiation air inlet of the main electric box part.

It is further optimized that the heat radiation air inlet of the main electric box is provided with two layers of filters, namely a primary filter and a secondary filter;

further preferably, sound absorbing cotton is arranged at a plurality of positions inside the filtering noise reduction box part; and sound absorbing cotton is arranged in the main electric box part.

It is further preferred that an orifice plate sound absorbing device is provided inside the filtering noise reduction box portion.

More preferably, the heat radiation air inlet of the main electric box is provided with two layers of filters, namely a primary filter and a secondary filter; a sound absorbing cotton is arranged on the main electric box part; the filtering noise reduction box part is provided with sound absorbing cotton and a pore plate sound absorbing device.

The sectional air suspension blower under the above series of technical schemes is a novel air suspension blower with independent and combinable structures, comprising a main machine main body part, a main electric box part, a filtering noise reduction box part and the like, solves the problem that the sealing and air inlet filtering of an integral machine case or a large box body are difficult, prolongs the service life, simultaneously reduces the noise of the whole machine easily, and the whole machine installation of the independent box body is convenient and fast compared with the traditional blower, the maintenance is also convenient, the filter replacement period is longer, and the cost is also reduced; and the heat dissipation effect is obviously improved due to the optimized structure.

Drawings

All illustrations in the present invention are briefly described herein:

FIG. 1 is a schematic view of the overall structure of a sectional case; wherein,,

1. filtration noise reduction box part: 1.1, a primary filter; 1.2, sound absorbing cotton; 1.3, sound absorbing cotton; 1.4, sound absorbing cotton; 1.5, a pore plate sound absorbing device;

2. host body portion: 2.1, a main air outlet pipeline; 2.2, a heat dissipation air outlet pipeline; 2.3, a host; 2.4, an air bearing;

2.5, a heat dissipation air inlet pipeline; 2.6, a main air inlet pipeline; 2.7 impeller

3. Main electric box part: 3.1, a primary filter; 3.2, a medium-efficiency filter; 3.3, sound absorbing cotton;

FIG. 2 is a schematic top plan layout of a segmented air-suspension blower;

fig. 3 is a perspective view of the whole machine appearance of the sectional air suspension blower.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

According to the technical scheme conception of the invention, two specific embodiments are shown and described.

Embodiment one: the sectional air suspension blower shown in fig. 1 and 2 comprises a filtering noise reduction box part 1, a main machine main body part 2, a main electric box part 3 and other boxes which are independently designed in multiple sections; the multi-section independent box body can be combined into a whole machine operation as shown in figure 3; wherein, the box bodies of the filtering noise reduction box part 1 and the main electric box part 3 are small box bodies, and are both sealed locally, and the main machine main body part 2 with the largest proportion is in a natural state without sealing.

The host 2.3 and the host thereof are contained in the host body part 2.

A core component impeller 2.7 and an air bearing 2.4 supporting the impeller rotation shaft; the front end of the host machine 2.3 is provided with a main air inlet pipeline 2.6 and a main air outlet pipeline 2.1; the rear end of the host machine 2.3 is provided with a heat radiation air inlet pipeline 2.5 and a heat radiation air outlet pipeline 2.2;

the filtering noise reduction box part 1 is provided with only one main air inlet and the pipe orifice of the main air inlet pipeline 2.6 which is arranged in the main body part 2 of the main machine, and the rest part is made into a sealing state; the primary filter is arranged at the main air inlet of the filtering noise reduction box part 1, and is according to the resistance parameter of the rated air quantity of the GB/T14295 filter, the initial wind resistance of the primary filter meeting the requirement is not higher than 50pa, the final resistance is not higher than 200pa, and the filtering precision is more than 2 micrometers (even more); the main machine 2.3 starts working from the impeller 2.7 and delivers gas out of the main gas outlet pipe 2.1, according to the main inlet direction illustrated in fig. 1.

Only an air inlet for heat dissipation in the main machine 2.3 and another pipe orifice for placing a heat dissipation air inlet pipeline 2.5 in the main machine main body part 2 are arranged on the main electric box part 3, and the rest part of the main electric box part 3 is made into a sealing state; two layers of filters are arranged at the heat radiation air inlet of the main electric box part 3, namely a primary filter 3.1 and a secondary filter 3.2.

The heat dissipation of the inside of the host machine 2.3 is achieved, so that external cold air is fed from the air inlet of the main electric box part 3, and the part temperature capable of taking away weak current in the box is considered, so that electric devices in the box are always in a cooling effect, and the service life of the electric devices in the box is prolonged. The heat dissipation air inlet pipeline 2.5 is used for heat dissipation and cooling of a host, so that the flow is small, the noise is small, but the filtering precision is high, and compared with the traditional structure, the mode of adopting the primary filter 3.1+ and the middle-effect filter 3.2 is considered, the replacement period of the filter can be obviously prolonged under the condition of the same filtering area due to the small flow.

It is apparent from the main electric box part 3 and the filtering noise reduction box 1 shown in fig. 1 that compared with the traditional integrally welded box body, the independent sectional box body has stronger universality and more convenient maintenance.

Embodiment two: on the basis of the first embodiment, further optimization and improvement are carried out, and noise reduction treatment is carried out in various aspects, as shown in fig. 1, namely, sound-absorbing cotton 1.2, sound-absorbing cotton 1.3 and sound-absorbing cotton 1.4 are arranged in a filtering noise reduction box part 1; a sound absorbing cotton 3.3 is arranged at a position close to the heat dissipation air inlet pipeline 2.5 in the main electric box part 3; the inside of the filtering noise reduction box part 1 is provided with a pore plate sound absorbing device 1.5, namely, the position of the intake noise source shown in fig. 1 is taken as a main intake pipeline 2.6, the largest noise source necessarily passes through the pore plate sound absorbing device 1.5 shown in fig. 1 (the pore plate is filled with specific sound absorbing cotton), most of high/low frequency noise source energy is absorbed through a sound trap noise reduction principle, part of audio energy is absorbed through the sound absorbing cotton 1.4 and 1.3, and finally, part of noise of a sound source is absorbed by the sound absorbing cotton 1.2, and then the sound source passes through the forefront primary filter 1.1 to be transmitted, and in a practical case, the noise of about 100 dB of the noise source can be reduced to within 80 dB. Compared with the traditional whole machine noise reduction, the noise source is independently sealed in the filtering noise reduction box, so that a real industry 'mute fan' is realized.

In the implementation process, the components of the air suspension blower are deeply and deeply split, and the box bodies of all parts are designed independently in a targeted and segmented mode, because the volumes of the filtering noise reduction box part 1 and the main electric box part 3 are smaller, sealing, filtering, noise reduction and other treatments are easy to be carried out, the large components of the main machine and other small components attached to the large components are all installed in the main machine main body part 2, the volume occupation ratio of the main machine main body part 2 is the largest in the whole machine, the splicing welding parts are the largest, the splicing welding parts can not be sealed, and the problems of difficult sealing, difficult noise reduction, inconvenient filter replacement, frequent filter and the like of the prior all-in-one machine are well solved by the segmented structure. The box of independent design, convenient dismantlement, easy installation, easy maintenance compares traditional complete machine structure, and the structure is simpler, and it is convenient to install, and it is more convenient to maintain to fine effectual maintenance complete machine and high-quality air-out and user's comfort level also obtain improving. .

Claims (6)

1. The sectional type air suspension blower is characterized by comprising a sectional independent box body of a filtering noise reduction box part (1), a main machine main body part (2) and a main electric box part (3); the sectional independent boxes are respectively processed according to the needs and then combined into a complete machine capable of running; the main body part (2) comprises a main body (2.3), a core component impeller (2.7) in the main body and an air bearing (2.4) for supporting an impeller rotating shaft; the front end of the main machine (2.3) is provided with a main air inlet pipeline (2.6), and the air outlet end of the main machine (2.3) is provided with a main air outlet pipeline (2.1); a heat radiation air inlet pipeline (2.5) and a heat radiation air outlet pipeline (2.2) are arranged at the rear end of the host machine (2.3); the box body of the filtering noise reduction box part (1) is only provided with a main air inlet and a pipe orifice of a main air inlet pipeline (2.6) which is arranged in the main body part (2) of the host; when the pipe orifice of the main air inlet pipe (2.6) extends into the filtering noise reduction box part (1), the box body of the filtering noise reduction box part (1) is in a sealing state except for a main air inlet; only an air inlet for internal heat radiation of a host (2.3) and a pipe orifice of another heat radiation air inlet pipeline (2.2) arranged in the host main body part (2) are arranged on the box body of the main electric box part (3); when the pipe orifice of the heat radiation air inlet pipeline (2.2) stretches into the main electric box part (3), the box body of the main electric box part (3) is in a sealing state except for an air inlet for heat radiation inside the host machine (2.3); the box body of the main body part (2) is in a natural state of being not sealed integrally, and ensures that gas coming from the main air inlet direction is only discharged from the main air outlet pipeline (2.1), and gas coming from the heat dissipation air inlet pipeline (2.5) is only discharged from the heat dissipation air outlet pipeline (2.2).

2. A segmented air-suspension blower as claimed in claim 1, characterized in that a primary filter (1.1) is provided at the primary air inlet of the filtering noise reduction box portion (1); a filter is arranged at a heat radiation air inlet of the main electric box part (3).

3. A segmented air-suspension blower as claimed in claim 2, characterized in that at the heat dissipation air inlet of the main electric box part (3) there are provided two layers of filters: the primary filter (3.1) and the secondary filter (3.2) are arranged.

4. The segmented air-suspension blower according to claim 2, characterized in that sound-absorbing cotton (1.2), sound-absorbing cotton (1.3) and sound-absorbing cotton (1.4) are arranged in the filtering noise-reduction box portion (1); a sound absorbing cotton (3.3) is disposed in the main electric box part (3).

5. The segmented air-suspension blower as claimed in claim 4, characterized in that an orifice plate sound absorbing device (1.5) is provided at the front end of the main air intake duct (2.6) of the filtering noise reduction box section (1).

6. A segmented air-suspension blower as claimed in claim 2, characterized in that a two-layer filter, namely a primary filter (3.1) and a secondary filter (3.2), is arranged at the heat radiation air inlet of the main electric box part (3); sound absorbing cotton is arranged in the main electric box part (3); in the filtering noise reduction box part (1), not only sound absorbing cotton is arranged, but also an orifice plate sound absorbing device (1.5) is arranged at the front end of the main air inlet pipeline (2.6).