CN215870430U

CN215870430U - Indoor transformer substation ventilation noise eliminator

Info

Publication number: CN215870430U
Application number: CN202121921010.0U
Authority: CN
Inventors: 居金晶; 张焱鑫; 李聪; 卫海亮; 樊勇林; 陈琼; 陈乐�
Original assignee: Sanmenxia Power Supply Co Of State Grid Henan Electric Power Co
Current assignee: Sanmenxia Power Supply Co Of State Grid Henan Electric Power Co
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-18
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a ventilation noise elimination device of an indoor transformer substation, which relates to the technical field of noise elimination equipment and comprises a ventilation noise elimination pipe, a partition plate and a partition mechanism, wherein the ventilation noise elimination pipe is arranged into a rectangular pipe; the inside horizontal installation of ventilation muffler pipe has the baffle, separate into two upper and lower cavities through the baffle with the ventilation muffler pipe, and baffle department has three at least partition mechanism of group along left and right direction interval arrangement, partition mechanism is with two upper and lower cavities further separate on the left and right sides direction, wherein middle partition mechanism and baffle fixed coordination, the partition mechanism and the baffle of left and right sides remove the cooperation in the left and right sides direction, thereby through the position of the partition mechanism of adjustment left and right sides, adjust the area of amortization cavity, adapt to the noise of different frequencies, the suitability of the device is improved, and separate the ventilation muffler pipe through baffle and partition mechanism and establish into eight mutually independent cavities, the effectual sound absorption girth and the sound absorption time that has increased.

Description

Indoor transformer substation ventilation noise eliminator

Technical Field

The utility model relates to the technical field of silencing equipment, in particular to an indoor transformer substation ventilation silencing device.

Background

In an urban indoor substation in a power grid system, especially in a main transformer chamber of the substation, a large amount of noise and heat can be generated due to large equipment power and concentrated equipment, especially in the indoor substation, once protective measures for the substation are not performed in place, the noise can affect the normal life of surrounding people, and therefore a ventilation silencer is generally arranged at a fan outlet of a ventilation and heat dissipation system of the indoor substation and used for controlling airflow noise and noise leakage of indoor equipment.

However, the existing silencer has a poor silencing effect, and meanwhile, the internal structure of the existing silencer is generally fixedly arranged, so that the existing silencer can only eliminate noises with certain frequency, and a corresponding silencer is required to be selected for absorbing middle-low and high-frequency noises, so that the cost expenditure is increased to a certain extent, and the flexibility is reduced, and therefore, the ventilation silencer of an indoor transformer substation is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model aims to provide the indoor transformer substation ventilation noise elimination device which is more convenient to adjust, suitable for noises with various frequencies and higher in flexibility.

In order to achieve the purpose, the utility model provides the following technical scheme:

a ventilation noise elimination device for an indoor transformer substation comprises a ventilation noise elimination pipe, a partition plate and a partition mechanism, wherein the ventilation noise elimination pipe is arranged into a rectangular pipe, and an opening of the ventilation noise elimination pipe is in the front-back direction; the inside horizontal installation of ventilation muffler pipe has the baffle, separates the ventilation muffler pipe through the baffle and establishes into two upper and lower cavities to baffle department has three at least partition mechanism of group along left and right direction interval arrangement, and partition mechanism further separates two upper and lower cavities on left and right sides direction, and wherein the partition mechanism in the middle of with baffle fixed coordination, the partition mechanism and the baffle of left and right sides move the cooperation in left and right sides direction.

As a further scheme of the utility model: an inner cavity extending in the left-right direction is formed in the partition plate, a lead screw extending in the left-right direction is rotatably mounted in the inner cavity, and a pair of through grooves are symmetrically formed in the upper side and the lower side of the inner cavity;

the separating mechanism comprises a vertical plate and a top plate, wherein the vertical plate extends along the front-back direction, a first sliding block is fixedly arranged in the middle of the vertical plate, and a threaded hole is formed in the first sliding block; the first sliding blocks of the middle separating mechanism are sleeved on the lead screw in a clearance way and are fixedly connected with the partition plate, and the first sliding blocks of the left and right separating mechanisms are arranged on the lead screw in a threaded way; the vertical plate extends out of the partition plate from the first sliding block upwards and downwards respectively, and meanwhile, top plates are fixedly arranged at the upper end and the lower end of the vertical plate and are in contact fit with the inner wall of the ventilation and noise reduction pipe;

two sets of second sliders are symmetrically installed around using first slider as the center on the diapire of riser, and the through-hole has been seted up to the inside of second slider, and the auxiliary tank has been seted up to the symmetry on the wall of the upper and lower both sides of baffle simultaneously, and auxiliary tank internal fixation has the slide bar, and wherein the second slider passes through-hole slidable mounting on the outer wall of slide bar.

As a further scheme of the utility model: the left side wall and the right side wall of the vertical plate are symmetrically provided with a plurality of groups of side grooves, the bottom wall of the top plate is symmetrically provided with a plurality of groups of grooves, and the grooves and the side grooves are correspondingly communicated together.

As a further scheme of the utility model: the middle position of the inner wall of the left side of the ventilation and noise elimination pipe is provided with a cavity, a rotating shaft is vertically arranged in the cavity, a driving bevel gear is fixedly arranged on the rotating shaft, the driving bevel gear is meshed with a driven bevel gear, the end part of a lead screw extends into the cavity, and the driven bevel gear is fixedly arranged on the lead screw.

As a further scheme of the utility model: the bottom of the rotating shaft extends out of the bottom wall of the ventilation and noise elimination pipe, and a crank is fixedly mounted at the extending end of the rotating shaft.

As a further scheme of the utility model: and a plurality of groups of first silencing holes are symmetrically formed in the upper side wall and the lower side wall of the partition plate, a plurality of groups of second silencing holes are symmetrically formed in the left side wall and the right side wall of the vertical plate, and a plurality of groups of third silencing holes are formed in the inner wall of the ventilation silencing pipe.

Compared with the prior art, the utility model has the beneficial effects that:

this kind of silencing device is provided with separating mechanism in, at first the inside horizontal installation of ventilation muffler pipe has the baffle, separate the ventilation muffler pipe through the baffle and establish into two upper and lower cavities, and slidable mounting of baffle has two sets of separating mechanism, wherein fixed mounting has a set of separating mechanism in the middle of the inside of ventilation muffler pipe, thereby through the mobilizable mechanism position that separates in adjustment left and right sides, adjust the area of amortization cavity, adapt to the noise of different frequencies, improve the device's suitability, the riser bilateral symmetry that separates the mechanism simultaneously has seted up the multiunit side wall, and the multiunit recess has been seted up to the roof symmetry, recess and side wall intercommunication are in the same place, play the effect of alleviating the wind pressure, the holistic noise reduction effect has been improved, the practicality is stronger.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial enlarged view of the present invention at a.

Fig. 3 is a top view of the separator of the present invention.

FIG. 4 is a schematic view of the spacing mechanism of the present invention.

Fig. 5 is a bottom view of the top plate of the present invention.

As shown in the figure: 1. the ventilation muffler pipe, 2, the baffle, 3, the lead screw, 4, first slider, 5, the inner chamber, 6, logical groove, 7, the riser, 8, the roof, 9, the crank, 10, the cavity, 11, the pivot, 12, the drive bevel gear, 13, driven bevel gear, 14, the auxiliary tank, 15, the slide bar, 16, first muffling hole, 17, the screw hole, 18, the second slider, 19, the through-hole, 20, the side groove, 21, the second muffling hole, 22, the recess, 23, the third muffling hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, in the embodiment of the utility model, an indoor transformer substation ventilation noise elimination device comprises a ventilation noise elimination pipe 1, a partition plate 2 and a partition mechanism, wherein the ventilation noise elimination pipe 1 is a rectangular pipe, and an opening of the ventilation noise elimination pipe 1 is in a front-back direction; meanwhile, the partition board 2 is horizontally arranged inside the ventilation muffling pipe 1, the ventilation muffling pipe 1 is partitioned into an upper cavity and a lower cavity through the partition board 2, at least three groups of partition mechanisms are arranged at the partition board 2 along the left-right direction at intervals, the upper cavity and the lower cavity are further partitioned by the partition mechanisms in the left-right direction, the middle partition mechanisms are fixedly matched with the partition board, the partition mechanisms on the left side and the right side are movably matched with the partition board in the left-right direction, the area of the muffling cavities is adjusted by adjusting the positions of the partition mechanisms on the left side and the right side, the noise at different frequencies is adapted, the applicability of the device is improved, the ventilation muffling pipe is partitioned into eight mutually independent cavities through the partition board 2 and the partition mechanisms, the sound absorption perimeter and the sound absorption time are effectively increased, and the muffling effect is better.

Wherein, the inner chamber 5 that the left and right directions extended is seted up to the inside of baffle 2, wherein the inside of inner chamber 5 is rotated and is installed the lead screw 3 of extending direction about, and threaded mounting has two sets of separating mechanism (the separating mechanism of the left and right sides promptly) on the outer wall of lead screw 3, a pair of logical groove 6 has been seted up to the upper and lower bilateral symmetry of inner chamber 5 simultaneously, separating mechanism stretches out from leading to the inslot, and the upper and lower both ends inner wall sliding contact that separates the end that stretches out of mechanism and ventilation noise elimination pipe 1 is in the same place, fixed mounting has a set of separating mechanism (the separating mechanism in the middle of the inside of ventilation noise elimination pipe 1 simultaneously, the both ends that separate the mechanism are fixed mounting respectively on the upper and lower both ends inner wall of ventilation noise elimination pipe 1.

Referring to fig. 2, it can be seen that: a cavity 10 is formed in the middle of the inner wall of the left side of the ventilation and noise elimination pipe 1, a rotating shaft 11 is vertically arranged in the cavity 10, a driving bevel gear 12 is fixedly arranged on the outer wall of the rotating shaft 11, a driven bevel gear 13 is meshed with the outer wall of the driving bevel gear 12, the end of a screw rod 3 extends into the cavity 10, the driven bevel gear 13 is fixedly arranged on the outer wall of the end of the screw rod 3, the bottom of the rotating shaft 11 extends out of the bottom wall of the ventilation and noise elimination pipe 1, and a crank 9 is fixedly arranged at the extending end of the rotating shaft 11; the rotating shaft 11 is rotated through the crank 9, and the lead screw 3 is driven to rotate through the driving bevel gear 12 and the driven bevel gear 13, so that the separating mechanisms on the left side and the right side are driven to horizontally move, and the area of the sound insulation cavity is adjusted.

The separating mechanism comprises a vertical plate 7 and a top plate 8, wherein the vertical plate 7 extends in the front-back direction, a first sliding block 4 is fixedly installed in the middle of the vertical plate 7, and a threaded hole 17 is formed in the first sliding block 4; the first sliding blocks 4 of the middle separating mechanism are sleeved on the screw rod 3 with a clearance and are fixedly connected with the partition plate, the first sliding blocks 4 of the left and right separating mechanisms are arranged on the screw rod 3 in a threaded manner, thereby installing the vertical plate 7 on the partition board 2, simultaneously, fixedly installing the top plate 8 at the upper end and the lower end of the vertical plate 7, contacting and matching the top plate 8 with the inner wall of the ventilation and noise elimination pipe 1, and the left and right side walls of the vertical plate 7 are symmetrically provided with a plurality of groups of second muffling holes 21, and the left and right side walls of the vertical plate 7 are symmetrically provided with a plurality of groups of side grooves 20, and the bottom wall of the top plate 8 is symmetrically provided with a plurality of groups of grooves 22, the grooves 22 are correspondingly communicated with the side grooves 20, so that, during the air discharge, a part of the high-pressure hot air flows along the side grooves 20 and the grooves 22, thereby play the effect of alleviating the wind pressure, reduce the noise, seted up multiunit third noise damping hole 23 on the diapire of roof 8 simultaneously equally.

Two sets of second sliders 18 are symmetrically installed around taking the first slider 4 as the center on the bottom wall of the vertical plate 7, through holes 19 are formed in the second sliders 18, auxiliary grooves 14 are symmetrically formed in the upper side wall and the lower side wall of the partition plate 2, sliding rods 15 are fixedly installed in the auxiliary grooves 14, the second sliders 18 are slidably installed on the outer walls of the sliding rods 15 through the through holes 19, and therefore the vertical plate 7 is supported in an auxiliary mode and limited.

Preferably, a plurality of groups of first muffling holes 16 are symmetrically formed in the upper side wall and the lower side wall of the partition board 2, and the muffling holes (not shown in the figure) are also formed in the inner wall of the ventilation muffling pipe 1, so that the overall muffling function of the device is further improved, and noise is reduced in the ventilation process.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides an indoor transformer substation ventilation noise eliminator which characterized in that: the ventilating and silencing pipe comprises a ventilating and silencing pipe (1), a partition plate (2) and a partition mechanism, wherein the ventilating and silencing pipe (1) is arranged into a rectangular pipe, and the opening of the ventilating and silencing pipe (1) is in the front-back direction; the inside horizontal installation of ventilation muffler pipe (1) has baffle (2), separates through baffle (2) and establishes into two upper and lower cavities with ventilation muffler pipe (1) to baffle (2) department has at least three group partition mechanism along left and right direction interval arrangement, and partition mechanism further separates two upper and lower cavities on the left and right sides orientation, and wherein the partition mechanism in the middle is fixed coordination with the baffle, and the partition mechanism and the baffle of the left and right sides move the cooperation in the left and right sides orientation.

2. The indoor substation ventilation noise eliminator of claim 1, characterized in that: an inner cavity (5) extending in the left-right direction is formed in the partition plate (2), a lead screw (3) extending in the left-right direction is rotatably mounted in the inner cavity (5), and a pair of through grooves (6) are symmetrically formed in the upper side and the lower side of the inner cavity (5);

the separating mechanism comprises a vertical plate (7) and a top plate (8), wherein the vertical plate (7) extends in the front-back direction, a first sliding block (4) is fixedly installed in the middle of the vertical plate (7), and a threaded hole (17) is formed in the first sliding block (4); the first sliding blocks (4) of the middle separating mechanism are sleeved on the lead screw (3) in a clearance mode and are fixedly connected with the partition plate, and the first sliding blocks (4) of the separating mechanisms on the left side and the right side are installed on the lead screw (3) in a threaded mode; the vertical plate (7) extends out of the partition plate (2) from the first sliding block (4) upwards and downwards respectively, meanwhile, the upper end and the lower end of the vertical plate (7) are fixedly provided with the top plate (8), and the top plate (8) is in contact fit with the inner wall of the ventilation and noise reduction pipe (1);

use first slider (4) to install two sets of second slider (18) as central longitudinal symmetry on the diapire of riser (7), through-hole (19) have been seted up to the inside of second slider (18), auxiliary tank (14) have been seted up to the symmetry on the wall of the upper and lower both sides of baffle (2) simultaneously, and fixed mounting has slide bar (15) in auxiliary tank (14), and wherein second slider (18) pass through-hole (19) slidable mounting on the outer wall of slide bar (15).

3. The indoor substation ventilation noise eliminator of claim 2, characterized in that: the left side wall and the right side wall of the vertical plate (7) are symmetrically provided with a plurality of groups of side grooves (20), the bottom wall of the top plate (8) is symmetrically provided with a plurality of groups of grooves (22), and the grooves (22) and the side grooves (20) are correspondingly communicated together.

4. The indoor substation ventilation noise eliminator of claim 2, characterized in that: the ventilation muffler pipe is characterized in that a cavity (10) is formed in the middle of the inner wall of the left side of the ventilation muffler pipe (1), a rotating shaft (11) is vertically installed inside the cavity (10), a driving bevel gear (12) is fixedly installed on the rotating shaft (11), the driving bevel gear (12) is meshed with a driven bevel gear (13), the end of a lead screw (3) extends into the cavity (10), and the driven bevel gear (13) is fixedly installed on the lead screw (3).

5. The indoor substation ventilation noise eliminator of claim 4, characterized in that: the bottom of the rotating shaft (11) extends out of the bottom wall of the ventilation and noise elimination pipe (1), and a crank (9) is fixedly mounted at the extending end of the rotating shaft (11).

6. An indoor substation ventilation noise abatement apparatus according to any one of claims 2 to 5, wherein: the upper side wall and the lower side wall of the partition plate (2) are symmetrically provided with a plurality of groups of first silencing holes (16), the left side wall and the right side wall of the vertical plate (7) are symmetrically provided with a plurality of groups of second silencing holes (21), and the inner wall of the ventilation silencing pipe (1) is provided with a plurality of groups of third silencing holes.