CN214667245U - Simulation natural environment's detecting system that disappears entirely - Google Patents
Simulation natural environment's detecting system that disappears entirely Download PDFInfo
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- CN214667245U CN214667245U CN202120695292.0U CN202120695292U CN214667245U CN 214667245 U CN214667245 U CN 214667245U CN 202120695292 U CN202120695292 U CN 202120695292U CN 214667245 U CN214667245 U CN 214667245U
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Abstract
The utility model discloses a complete extinction detection system for simulating natural environment, which comprises an anechoic chamber, an air source chamber, an acoustic source chamber and a reverberation chamber, wherein a plurality of sound absorption wedges are arranged on six surfaces in the anechoic chamber, an air inlet pipe orifice and an air outlet pipe orifice are arranged in the anechoic chamber, a steel wire mesh is laid in the anechoic chamber, a sample frame assembly is arranged on the steel wire mesh, a fan is arranged in the air source chamber, the air outlet end of the fan is connected with the pipeline of the air inlet pipe orifice, an anechoic detection pipeline assembly is connected between the acoustic source chamber and the reverberation chamber, the reverberation chamber is connected with the pipeline of the air outlet pipe orifice, the acoustic source chamber is connected with the pipeline of the air inlet end of the fan, a ventilation loop is formed among the air source chamber, the anechoic chamber, the reverberation chamber, the anechoic detection pipeline assembly and the acoustic source chamber, the structure of the utility model is reasonable, the design of the ventilation loop is increased, the wind tunnel experiment effect is realized in the anechoic chamber, and the state close to the natural environment can be simulated in the anechoic chamber by matching with temperature control and humidity control equipment, thereby greatly improving the accuracy of the detection data of the sample.
Description
Technical Field
The utility model belongs to the technical field of the noise detection technique and specifically relates to a simulation natural environment's detecting system disappears entirely.
Background
Noise is the sound that various equipment inevitably exists in service, and in order to the data standard such as the noise level of detection equipment that is good, equipment often will be placed the anechoic chamber and test, and current anechoic chamber is all closed environment, but equipment is when using in practice, all is in windy, have temperature, have the environment of moisture, and the noise data that detects like this often has certain deviation with the reality in the closed anechoic chamber.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a simulation natural environment's detecting system disappears entirely.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a simulation natural environment's complete detection system that disappears, includes anechoic room, wind source room, sound source room, reverberation room, all install a plurality of wedges of absorbing sound on six faces in the anechoic room, be equipped with air inlet pipe mouth, air-out pipe mouth in the anechoic room, the steel wire net has been laid in the anechoic room, install sample rack subassembly on the steel wire net, install the fan in the wind source room, fan air-out end links to each other with air inlet pipe mouth pipeline, be connected with noise elimination detection pipeline assembly between sound source room, the reverberation room links to each other with air-out pipe mouth pipeline, the sound source room links to each other with fan air inlet end pipeline, form a ventilation return circuit between wind source room, anechoic room, reverberation room, noise elimination detection pipeline assembly, the sound source room.
The air inlet pipe orifice, the sample frame assembly and the air outlet pipe orifice are arranged along a straight line, the steel wire mesh is arranged above the sound absorption wedge layer at the bottom of the anechoic chamber, and temperature and humidity control equipment is installed at four angular positions in the anechoic chamber.
The sample frame subassembly includes sample frame foundation, sample mounting panel, the sample frame foundation is hollow structure, the sample frame foundation top is rotated and is installed the lift adjustment dish, be equipped with the internal thread hole on the lift adjustment dish, sample mounting panel below is connected with the lifting screw rod perpendicularly, the lifting screw rod matches with internal thread hole screw thread, the sample mounting panel passes through the lifting screw rod and installs on the lift adjustment dish, be equipped with the annular knurl line on the lift adjustment dish lateral wall.
The utility model has the advantages that: the utility model discloses it is rational in infrastructure, increased the design of ventilation circuit, make the indoor wind-tunnel experiment effect that has of noise elimination, cooperation accuse temperature accuse wet equipment can simulate out the state that is close mutually with natural environment in the noise elimination room to improve the detection data accuracy of sample by a wide margin.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is an indoor structure view of the anechoic chamber of the present invention;
FIG. 3 is a schematic view of the muffling chamber of the present invention;
fig. 4 is a schematic structural view of a sample rack assembly according to the present invention.
In the figure: the device comprises a silencing chamber 1, a sound absorption wedge 11, an air inlet pipe orifice 12, an air outlet pipe orifice 13, a steel wire mesh 14, a sample frame assembly 15, a sample frame bottom column 151, a lifting adjusting disc 152, an internal threaded hole 1521, knurled lines 1522, a sample mounting plate 153, a lifting screw 154, a temperature and humidity control device 16, an air source chamber 2, a fan 21, an acoustic source chamber 3, a reverberation chamber 4 and a silencing detection pipeline assembly 5.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, wherein the descriptions of "left", "right", etc. in the present invention all refer to fig. 1 as the reference direction:
as shown in fig. 1 to 4, a complete extinction detection system for simulating a natural environment comprises an anechoic chamber 1, a wind source chamber 2, a sound source chamber 3 and a reverberation chamber 4, wherein six surfaces in the anechoic chamber 1 are provided with a plurality of sound-absorbing wedges 11, sound-absorbing materials are arranged in the sound-absorbing wedges 11, the sound-absorbing wedges 11 completely cover the anechoic chamber 1, so that the anechoic chamber 1 has a complete extinction function, an air inlet pipe orifice 12 and an air outlet pipe orifice 13 are arranged in the anechoic chamber 1, a steel wire mesh 14 is laid in the anechoic chamber 1, a sample rack assembly 15 is arranged on the steel wire mesh 14, a sample to be detected is arranged on the sample rack assembly 15, a fan 21 is arranged in the wind source chamber 2, the air outlet end of the fan 21 is connected with a pipeline of the air inlet pipe orifice 12, a silencing detection pipeline assembly 5 is connected between the sound source chamber 3 and the reverberation chamber 4, the reverberation chamber 4 is connected with a pipeline of the air outlet pipe orifice 13, the sound source chamber 3 is connected with a pipeline at the air inlet end of the fan 21, the fan 21 is responsible for supplying air, a ventilation loop is formed between the air source chamber 2, the anechoic chamber 1, the reverberation chamber 4, the noise elimination detection pipeline assembly 5 and the sound source chamber 3, air continuously circulates in the ventilation loop, when the air moves to the anechoic chamber 1, a wind tunnel effect is formed on a sample to be detected, the external natural wind condition is simulated for detection, the maximum air supply amount can reach 30m/s, the existence of the ventilation loop reduces the air amount loss, the energy is saved, the experimental cost is reduced, meanwhile, when the reverberation chamber 4 and the sound source chamber 3 close the air duct opening, the sound source chamber 3, the reverberation chamber 4 and the noise elimination detection pipeline assembly 5 are connected and can be independently used as a noise eliminator detection experimental device, and therefore, one system can realize two functions, and the construction cost of the laboratory is reduced.
Air inlet pipe mouth 12, sample holder subassembly 15, air outlet pipe mouth 13 arranges along a straight line, install the sample that awaits measuring on sample holder subassembly 15 and can directly receive the air current effect, wire net 14 is arranged in the 11 layers of sound absorption wedges of anechoic chamber 1 bottom top, wire net 14 supports the use as ground, do not influence the noise cancelling effect on ground, temperature and humidity control equipment 16 is all installed to the four corners position in the anechoic chamber 1, the temperature and humidity in anechoic chamber 1 can be controlled to temperature and humidity control equipment 16, the cooperation ventilation structure, the ventilation in the nature is simulated comprehensively, the temperature, the environment of humidity change comes to detect the sample, can improve the accuracy of experimental data like this, also can know the temperature, humidity, the influence of the different condition of wind speed to sample noise.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (3)
1. The utility model provides a simulation natural environment's complete detection system that disappears, includes anechoic room (1), wind regime room (2), sound source room (3), reverberation room (4), its characterized in that: a plurality of sound-absorbing wedges (11) are arranged on six surfaces in the anechoic chamber (1), an air inlet pipe orifice (12) and an air outlet pipe orifice (13) are arranged in the anechoic chamber (1), a steel wire mesh (14) is laid in the anechoic chamber (1), a sample rack assembly (15) is arranged on the steel wire mesh (14), a fan (21) is arranged in the air source chamber (2), the air outlet end of the fan (21) is connected with the pipeline of the air inlet pipe orifice (12), a silencing detection pipeline component (5) is connected between the sound source chamber (3) and the reverberation chamber (4), the reverberation chamber (4) is connected with an air outlet pipe orifice (13) through a pipeline, the sound source chamber (3) is connected with an air inlet end pipeline of a fan (21), a ventilation loop is formed among the wind source chamber (2), the anechoic chamber (1), the reverberation chamber (4), the anechoic detection pipeline assembly (5) and the sound source chamber (3).
2. The simulated natural environment evanescent detection system of claim 1, wherein: air inlet pipe mouth (12), sample rack subassembly (15), air outlet pipe mouth (13) are arranged along a straight line, steel wire net (14) are arranged in sound absorption wedge (11) layer top of anechoic chamber (1) bottom, wet equipment of accuse temperature accuse (16) are all installed to the four corners position in anechoic chamber (1).
3. The simulated natural environment evanescent detection system of claim 1, wherein: sample frame subassembly (15) include sample frame foundation (151), sample mounting panel (153), sample frame foundation (151) are hollow structure, sample frame foundation (151) top is rotated and is installed lift adjustment dish (152), be equipped with internal thread hole (1521) on lift adjustment dish (152), sample mounting panel (153) below is connected with lifting screw (154) perpendicularly, lifting screw (154) and internal thread hole (1521) screw thread matching, install on lift adjustment dish (152) through lifting screw (154) sample mounting panel (153), be equipped with annular knurl line (1522) on lift adjustment dish (152) lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120695292.0U CN214667245U (en) | 2021-04-06 | 2021-04-06 | Simulation natural environment's detecting system that disappears entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120695292.0U CN214667245U (en) | 2021-04-06 | 2021-04-06 | Simulation natural environment's detecting system that disappears entirely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214667245U true CN214667245U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120695292.0U Active CN214667245U (en) | 2021-04-06 | 2021-04-06 | Simulation natural environment's detecting system that disappears entirely |
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| CN (1) | CN214667245U (en) |
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2021
- 2021-04-06 CN CN202120695292.0U patent/CN214667245U/en active Active
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