CN203160441U - Sound absorption curtain - Google Patents

Abstract

The utility model provides a sound absorption curtain provided with a fireproof function, which comprises three slide rails, two layers of curtains and lugs, wherein the three slide rails include a first slide rail, a second slide rail and a third slide rail which are horizontally placed in sequence; and the curtains penetrate through the lugs on adjacent slide rails in sequence and are pulled along the slide rails. The sound absorption curtain can control sound absorption quantity, reduce indoor reverberation, and can be applied to various places requiring for reducing the indoor reverberation.

Description

A kind of sound absorption heavy curtain

Technical field

The utility model relates to the heavy curtain of a design field of power transformation, specifically relates to a kind of sound absorption heavy curtain.

Background technology

Transformer station is the place that changes voltage.For the electricity that the power plant is sent is transported to place far away, must earlier voltage be raise transfers high-tension electricity to, on demand voltage is reduced flowing to the user again, and the work of this lifting voltage is finished by transformer station.The capital equipment of transformer station is switch and transformer.And the transformer station control room is the Monitoring and Controlling maincenter that is provided with required surveillance equipment and control appliance in the transformer station, is the contact tie of transformer station and control centre.The sound that transformer station or power plant's master-control room inner control equipment, ventilation equipment etc. produce is easily in indoor generation reverberation, and maloperation takes place operator on duty's operate as normal easily in the influence station.Adopt common heavy curtain and single layer structure in traditional transformer station's master-control room, can not effectively reduce noise.

Summary of the invention

For overcoming the deficiencies in the prior art, the utility model proposes a kind of sound absorption heavy curtain of double-decker design, can control absorption, effectively reduce room reverberation, be applied to the various places that need to reduce room reverberation.

For the technical scheme that reaches required effect employing is:

A kind of sound absorption heavy curtain, described sound absorption heavy curtain is the sound absorption heavy curtain with fire-proof function, its improvements are: described heavy curtain comprises three one slide rails, two-layer curtain and hanging nose; Described three one slide rails are slide rail one, slide rail two and the slide rail three of horizontal parallel placement successively, and described curtain passes the hanging nose on the adjacent slide rail successively, along the slide rail stay bolt.

Further, three adjacent described hanging noses that link to each other by described curtain form triangle.

Further, described triangle is equilateral triangle, isosceles triangle or arbitrary triangle.

Further, described adjacent slide rail spacing is L1, and clear space arranges L1 by curtain fold rate a each other between slide rail with when installing, and described fold rate a is 1.8 ~ 2.

Further, the cavity depth of described curtain fold generation changes with described L1.

Further, described hanging nose is the annulus of fastening type.

Further, the pass of the distance L 2 of adjacent hanging nose is on described L1 and the described slide rail:

$L1=\frac{\sqrt{1-{(1/a)}^2}}{2}L2.$

Compare with existing sound absorption heavy curtain, the beneficial effect that the utility model reaches is:

1) double-decker design: the cavity depth between the double-decker is optional, and at first porous absorption material has good medium-high frequency sound absorption characteristics, and the double layer design effect is better; Cavity in the middle of the secondly two-layer heavy curtain can play the effect that improves low frequency absorption;

2) sound absorbing capabilities is adjustable: the fold rate can change within the specific limits, can regulate by the expansion degree of curtain;

3) fire line: with the processing of preventing fires of traditional curtain, will be adapted at fireproof occasions like this and use;

4) easy for installation: the sound absorption curtain belongs to dry goods, installs to have very big freedom;

5) ornamental: the decorative effect of taking into account traditional curtain.

Description of drawings

Fig. 1 connects schematic top plan view for the sound absorption heavy curtain;

Description of drawings: 1-slide rail one; 2-slide rail two; 3-slide rail three; The 4-curtain; The 5-cavity; The 6-hanging nose.

The specific embodiment

As shown in Figure 1, sound absorption heavy curtain of the present utility model connects schematic top plan view, hangs some hanging noses 6 on slide rail 1, slide rail 22 and the slide rail 33.The spacing of the spacing of slide rail 1 and slide rail 22 and slide rail 22 and slide rail 33 determines that according to the two-layer curtain 4 that hangs from above respectively between slide rail fold rate each other the fold rate is 1.8～2.Curtain 4 passes the hanging nose on the adjacent slide rail successively, 4 on curtain 4 and wall and curtain 4 and curtain produce cavity 5, when porous absorption material leaves air layer (being cavity 5) behind, approximate with the acoustically effective that same material fills up with this air layer, have acoustically effective.

Curtain 4 is sound absorption materials (as Velveting) of handling through fire prevention, adopts double-decker simultaneously, has strengthened assimilation effect; Hanging nose 6 is annulus of fastening type.

During installation, determine clear space, the distance between the adjacent slide rail that the sound absorption heavy curtain is installed and the fold rate of determining the sound absorption heavy curtain, calculate the distance between the adjacent hanging nose accordingly, have relational expression as follows:

$L1=\frac{\sqrt{1-{(1/a)}^2}}{2}L2.$ Wherein

1, L1 is the spacing of adjacent slide rail, adjusts according to clear space and the curtain fold rate to each other of installation place;

2, a is the fold rate of curtain, and common is 1.8 ~ 2;

3, L2 is the spacing of the adjacent hanging nose on the one slide rail, and L2 is the minimum range the when curtain between the hanging nose is straightened up and down, and the actual design value is generally 1.1 ~ 1.5 times of this distance.

Illustrate: suppose that clear space is 200mm, and distance is 100mm between the design slide rail, the fold rate of double-deck sound absorption heavy curtain is at 2 o'clock; Calculate according to above-mentioned formula, the minimum range between the adjacent hanging nose is 230mm, and design load should be between 250mm ~ 350mm.This design can reach by regulating the sound absorption heavy curtain, control absorption, the effect of sound absorption in the assurance master-control room.

Should be noted that at last: above embodiment only be used for explanation the application technical scheme but not to the restriction of its protection domain; although with reference to above-described embodiment the application is had been described in detail; those of ordinary skill in the field are to be understood that: those skilled in the art still can carry out all changes, revise or be equal to replacement to the specific embodiment of application after reading the application; these changes, revise or be equal to replacement, all within the claim protection domain that application is awaited the reply.

Claims (7)

1. sound absorption heavy curtain, described sound absorption heavy curtain is the sound absorption heavy curtain with fire-proof function, it is characterized in that: described heavy curtain comprises three one slide rails, two-layer curtain and hanging nose; Described three one slide rails are slide rail one, slide rail two and the slide rail three of horizontal parallel placement successively; Described curtain passes the hanging nose on the adjacent slide rail successively, along the slide rail stay bolt.

2. a kind of sound absorption heavy curtain as claimed in claim 1 is characterized in that: by three continuous adjacent described hanging noses formation triangles of described curtain.

3. a kind of sound absorption heavy curtain as claimed in claim 2, it is characterized in that: described triangle is equilateral triangle, isosceles triangle or arbitrary triangle.

4. a kind of sound absorption heavy curtain as claimed in claim 1, it is characterized in that: described adjacent slide rail spacing is L1, and clear space arranges L1 by curtain fold rate a each other between slide rail with when installing, and described fold rate a is 1.8～2.

5. a kind of sound absorption heavy curtain as claimed in claim 1 is characterized in that: the cavity depth that described curtain fold produces changes with described L1.

6. a kind of sound absorption heavy curtain as claimed in claim 1, it is characterized in that: described hanging nose is the annulus of fastening type.

7. a kind of sound absorption heavy curtain as claimed in claim 1, it is characterized in that: the pass of the distance L 2 of adjacent hanging nose is on described L1 and the described slide rail: