CN209020188U - A kind of biological deodorizing device of noise reduction - Google Patents

Abstract

The utility model discloses a kind of biological deodorizing devices of noise reduction, are related to biological deodorizing equipment technical field, it is intended to solve the problems, such as that air-introduced machine running hours noise is larger.Its key points of the technical solution are that, a kind of biological deodorizing device of noise reduction, base, pre- wash pool and biofilter including air-introduced machine, for installing air-introduced machine, induced duct is connected between the air-introduced machine and pre- wash pool, gas vent is provided on the biofilter, it is surrounded with soundproof plate outside the air-introduced machine, the soundproof plate is provided with the through-hole passed through for induced duct on two opposite sides.Noise when the utility model achievees the effect that reduce air-introduced machine work by the way that soundproof plate is arranged.

Description

A kind of biological deodorizing device of noise reduction

Technical field

The utility model relates to biological deodorizing equipment technical fields, more specifically, it relates to which a kind of biology of noise reduction removes Smelly device.

Background technique

Biological deodorizing device includes air-introduced machine, pre- wash pool and biofilter, passes through induced duct between air-introduced machine and pre- wash pool It is connected.Pre- wash pool is used to remove the large dust particle in foul smell, and humidifies gas.Biologic packing material in biofilter absorbs useless Harmful substance in gas converts it into simple inorganic matter such as carbon dioxide, water etc..

Referring to Fig.1, existing biological deodorizing device, including air-introduced machine 1, pre- wash pool 11 and biofilter 12,1 He of air-introduced machine It is connected between pre- wash pool 11 by induced duct 13.Exhaust gas is sent into pre- wash pool 11 by induced duct 13 by air-introduced machine 1, and gas is pre- Wash pool 11 enters biofilter 12 after spray and carries out deodorization.

But noise, and the frequent continuous work of air-introduced machine 1 are generated when the work of the air-introduced machine 1 of above-mentioned biological deodorizing device A few hours generate prolonged noise, have some impact on to workers ' health and environment, therefore are further improved.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of biological deodorizing of noise reduction dresses It sets, has the effect of reducing noise.

To achieve the above object, the utility model provides following technical solution: a kind of biological deodorizing device of noise reduction, packet Air-introduced machine, the base for installing air-introduced machine, pre- wash pool and biofilter are included, is connected with and draws between the air-introduced machine and pre- wash pool Air hose is provided with gas vent on the biofilter, is surrounded with soundproof plate outside the air-introduced machine, the soundproof plate is opposite The through-hole passed through for induced duct is provided on two sides.

By using above-mentioned technical proposal, soundproof plate itself has soundproof effect.When noise is propagated from air to soundproof plate When, belong to across medium propagation.When across medium propagation, two media density difference is bigger, and sound energy loss is bigger.Therefore when noise from When air is transmitted to density big soundproof plate, sound energy loss has certain soundproof effect.

Further, soundproof plate length direction is provided with cavity in the soundproof plate, is inserted with core plate in the cavity, The length of the core plate and the length of soundproof plate are consistent.

By using above-mentioned technical proposal, noise is successively passed in air-soundproof plate-air-core plate-air-soundproof plate Broadcast, need just penetrate soundproof plate by repeatedly across medium propagation, this process overwhelming majority sound can be depleted, core plate density with every Soundboard density is different, further increases sound energy loss.

Further, several fins, the length of the fin and the length of soundproof plate are provided on the side wall of the cavity Unanimously.

By using above-mentioned technical proposal, sound is when propagating, successively in air-soundproof plate-fin-air-core plate-sky It is propagated in gas-soundproof plate, needs just penetrate soundproof plate by repeatedly across medium propagation, this process overwhelming majority sound can be damaged Consumption reduces noise.

Further, fin is provided in the opposite two side walls of the cavity.

By using above-mentioned technical proposal, increase the number that noise is propagated across medium, further sound energy consumption.

Further, the cross-sectional shape of the fin is triangle.

By using above-mentioned technical proposal, between the side of fin multiple reflections can occur for sound wave when transmitting, and increase The loss of sound energy, further decreases noise.

Further, two sides of the fin are provided with several circular holes along fin equal spacing in length direction.

By using above-mentioned technical proposal, the specific surface area of fin is increased, increases diffusing reflection of the sound wave between fin, Play the role of further increasing sound energy loss, reduce noise.

Further, the core plate is cystosepiment.

By using above-mentioned technical proposal, cystosepiment is a kind of porous material, and partial sound can be absorbed, and is had centainly Sound insulation, sound-absorbing effect.

Further, crash roll is provided on the base.

By using above-mentioned technical proposal, vibration when air-introduced machine running, damping noise reduction are reduced.

In conclusion the utility model has the following beneficial effects:

1, using soundproof plate, noise needs just penetrate soundproof plate by across medium propagation, increases sound energy loss, reaches drop The effect made an uproar；

2, several sections fin triangular in shape is provided with using the side wall in cavity, and is provided with circular hole on fin, The specific surface area for increasing fin increases diffusing reflection of the sound wave between fin, further increases sound energy loss, reduces noise.

Detailed description of the invention

Fig. 1 is the biological deodorizing device structural schematic diagram in background technique；

Fig. 2 is the biological deodorizing device schematic diagram of one of embodiment noise reduction；

Fig. 3 is the biological deodorizing device part-structure explosive view of one of embodiment noise reduction；

Fig. 4 is the enlarged diagram of part A in Fig. 3.

In figure: 1, air-introduced machine；11, pre- wash pool；12, biofilter；13, induced duct；14, base；15, gas vent；2, every Soundboard；3, through-hole；31, cavity；4, core plate；5, fin；6, circular hole；7, crash roll.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment:

A kind of biological deodorizing device of noise reduction, reference Fig. 2 and Fig. 3, including air-introduced machine 1, pre- wash pool 11 and biofilter 12, It is connected between air-introduced machine 1 and pre- wash pool 11 by induced duct 13.1 screw of air-introduced machine is fixed on base 14.It is set on base 14 It is equipped with crash roll 7, reduces vibration when air-introduced machine 1 operates, damping noise reduction.Exhaust gas is sent into pre- by air-introduced machine 1 by induced duct 13 Wash pool 11, gas enter biofilter 12 in pre- wash pool 11 after spray and carry out deodorization.12 side wall of biofilter offers row Stomata 15, the gas after deodorization are discharged by gas vent 15.

Referring to Fig. 3 and Fig. 4, it is covered with soundproof plate 2 on air-introduced machine 1, adjacent soundproof plate 2 is fixed by screw, soundproof plate 2 one As such as calcium silicate board, plasterboard be made by high density material.Circular through-hole 3 is offered on soundproof plate 2.It is set in soundproof plate 2 It is equipped with cavity 31, the length of cavity 31 is consistent with the length of soundproof plate 2.Be inserted with core plate 4 in cavity 31, the length of core plate 4 and 2 equal length of soundproof plate.Core plate 4 is cystosepiment, and cystosepiment is a kind of porous material, and partial sound can be absorbed, and is had certain Sound insulation, sound-absorbing effect.

Referring to Fig. 4, fin 5, the length of fin 5 and the length of soundproof plate 2 are provided in the left and right two side walls of cavity 31 Degree is consistent, and fin 5 is equidistantly arranged in parallel with several.The cross-sectional shape of fin 5 is triangle.Sound wave can be convex when transmitting Multiple reflections occur between the side of rib 5, the molecule on 5 surface of fin is vibrated because of sound wave, can convert thermal energy for part sound, is increased Add the loss of sound energy, reduces noise.Circular hole 6 is provided on two sides of fin 5, circular hole 6 is along 5 length direction of fin etc. Spacing is provided with several.

Working principle is as follows:

When noise is propagated from air to soundproof plate 2, belong to across medium propagation.When across medium propagation, two media density Differ bigger, sound energy loss is bigger.Therefore when noise is transmitted to the big soundproof plate 2 of density from air, sound energy loss has certain Soundproof effect.

Noise is when propagating, successively in air-soundproof plate 2- fin 5- air-core plate 4- air-fin 5- soundproof plate 2 It propagates, needs just penetrate soundproof plate 2 by repeatedly across medium propagation, this process overwhelming majority sound can be depleted, and reduce noise.

Multiple reflections can occur when noise transmission between the side of fin 5, the molecule on 5 surface of fin shakes because of sound wave It is dynamic, thermal energy can be converted by part sound, increases the loss of sound energy, reduces noise.

It is propagated in circular hole 6 again via the sound wave that fin 5 reflects, circular hole 6 increases the specific surface area of fin 5, increases Diffusing reflection of the sound wave between fin 5 increases sound energy loss, further decreases noise.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (4)

1. a kind of biological deodorizing device of noise reduction, including air-introduced machine (1), pre- wash pool (11), biofilter (12) and for carrying The base (14) of air-introduced machine (1), is connected with induced duct (13), the biological filter between the air-introduced machine (1) and pre- wash pool (11) Gas vent (15) are provided on pond (12), it is characterised in that: be surrounded with soundproof plate (2) outside the air-introduced machine (1), it is described every Soundboard (2) is provided with the through-hole (3) passed through for induced duct (13) on two opposite sides；In the soundproof plate (2) along every Soundboard (2) length direction is provided with cavity (31), is inserted with core plate (4) in the cavity (31), the length of the core plate (4) and The length of soundproof plate (2) is consistent；Be provided with several fins (5) on the side wall of the cavity (31), the length of the fin (5) and The length of soundproof plate (2) is consistent；Fin (5) are provided in the opposite two side walls of the cavity (31)；The fin (5) Cross-sectional shape is triangle.

2. a kind of biological deodorizing device of noise reduction according to claim 1, it is characterised in that: two of the fin (5) Side is provided with several circular holes (6) along fin (5) equal spacing in length direction.

3. a kind of biological deodorizing device of noise reduction according to claim 1, it is characterised in that: the core plate (4) is foam Plate.

4. a kind of biological deodorizing device of noise reduction according to claim 1, it is characterised in that: be arranged on the base (14) There are crash roll (7).