Vacuum glass heat insulation performance testing device and testing method

Abstract

The present application relates to the field of vacuum glass detection, and discloses a kind of vacuum glass heat insulation performance testing device machine testing methods, testing device includes control system, soundproof room and be set in soundproof room and sound box and sound receiver, sound box is provided with sound generator and sound receiver I, sound receiver II is arranged in sound box;Sound box and sound box are oppositely arranged, and the two side walls of sound box and sound box are provided with opening, and sound generator, sound receiver II and opening are on the same straight line, and vacuum glass is placed between the opening of sound box and sound box;It also includes sound box driving mechanism and sound receiver driving mechanism, and sound generator, sound receiver I, sound receiver II, sound box driving mechanism and sound receiver driving mechanism are electrically connected with control system.Compared with prior art, when the present application is used to detect vacuum glass, the requirement for external environment is lower, the detection time is short, and the detection efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vacuum glass detection, in particular to a vacuum glass heat insulation performance testing device and testing method. BACKGROUND

[0002] Vacuum glass is a new type of glass deep processing product, which is developed based on the principle of thermos bottle. Vacuum glass has excellent heat insulation performance and good heat insulation and noise reduction performance, and has been widely used at home and abroad.

[0003] As a heat insulation material, vacuum glass requires that the air pressure in the vacuum layer is less than 0.1 Pa, i.e. below one millionth of atmospheric pressure. At this time, the average free path of gas molecules in the layer is much larger than the spacing (0.1-0.2 mm), and the heat conduction and convection of the gas can be ignored, so as to achieve the same heat preservation effect as the thermos bottle. If the air pressure in the layer is too high, i.e. the vacuum degree is poor, the heat transfer caused by the gas is large, and the heat preservation performance is as bad as a "leaking" thermos bottle. Therefore, how to ensure that each piece of vacuum glass reaches the above-mentioned vacuum degree is a key problem in the production of vacuum glass.

[0004] The existing vacuum glass heat insulation performance testing method mainly uses the heat preservation detection method. This heat preservation detection method has high requirements for external environmental conditions, and each piece of detection takes about 30 minutes, which is too long and has low detection efficiency.

[0005] Temperature and sound transmission are both completed by air. If the air in the vacuum glass cavity is thin, the transmission of temperature and sound will be worse. In view of this feature, the present application provides a testing device for judging whether the heat insulation performance of vacuum glass is qualified by testing the sound insulation performance of vacuum glass. SUMMARY

[0006] The main purpose of the present application is to provide a vacuum glass heat insulation performance testing device and testing method for judging whether the heat insulation performance of vacuum glass is qualified by testing the sound insulation performance of vacuum glass, aiming at the above-mentioned deficiencies of the existing vacuum glass heat insulation performance testing method.

[0007] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] A vacuum glass heat insulation performance testing device, comprising a control system, a soundproof room, and a sound emitting box and a sound receiving box arranged in the soundproof room, wherein the sound emitting box is provided with a sound emitter and a sound receiver I, and the sound receiving box is provided with a sound receiver II;

[0009] The sound emitting box and the sound receiving box are oppositely arranged, and the sound emitting box and the sound receiving box are provided with openings on two opposite side walls, the sound emitter, the sound receiver II and the openings are on the same straight line, and the vacuum glass is placed between the openings of the sound emitting box and the sound receiving box;

[0010] The sound emitting box is driven by the sound emitting box driving mechanism to move forward and backward or up and down, and the sound receiving box is driven by the sound receiving box driving mechanism to move forward and backward or up and down.

[0011] The sound emitter, the sound receiver I, the sound receiver II, the sound emitting box driving mechanism and the sound receiving box driving mechanism are electrically connected with the control system.

[0012] Preferably, the sound emitting box and the sound receiving box are placed on the ground in parallel, the sound emitting box is driven by the sound emitting box driving mechanism to move forward and backward, and the sound receiving box is driven by the sound receiving box driving mechanism to move forward and backward.

[0013] Preferably, the sound emitting box and the sound receiving box are vertically placed up and down, the sound emitting box is fixed to the ground of the soundproof room, the sound receiving box is fixed directly above the sound emitting box, the sound emitting box is driven by the sound emitting box driving mechanism to move up and down, and the sound receiving box is driven by the sound receiving box driving mechanism to move up and down.

[0014] Preferably, the sound emitting box and the sound receiving box are vertically placed up and down, the sound receiving box is fixed to the ground of the soundproof room, the sound emitting box is fixed directly above the sound receiving box, the sound emitting box is driven by the sound emitting box driving mechanism to move up and down, and the sound receiving box is driven by the sound receiving box driving mechanism to move up and down.

[0015] Preferably, the sound emitting box and the sound receiving box are provided with sealing rubber strips at the openings, so as to ensure that the sound emitting room and the sound receiving room maintain a certain sound insulation effect.

[0016] The test method of the vacuum glass heat insulation performance test device is as follows:

[0017] Step 1: Transport the vacuum glass to be tested to the openings of the sound emitting box and the sound receiving box;

[0018] Step 2: The control system sends instructions to drive the sound emitting box driving mechanism and the sound receiving box driving mechanism to drive the sound emitting box and the sound receiving box to move, respectively, until the vacuum glass is clamped;

[0019] Step 3: Turn on the sound emitter to emit a certain number of decibels, and then notify the sound receiver I to test to confirm that the decibels collected by the sound receiver I are the same as the decibels emitted by the sound emitter;

[0020] Step 4: Send the decibels collected by the sound receiver II to the computer for recording and comparison with the standard database, so as to confirm whether the heat transfer U value of the piece of vacuum glass is qualified.

[0021] Compared with the prior art, the application has the advantages that the detection of the vacuum glass has low requirements for the external environment, the detection time is short, and the detection efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the application;

[0023] The above drawings include the following reference signs: 1, a soundproof room; 2, a sound emitting box; 21, a sound emitter; 22, a sound receiver I; 23, a sound emitting box driving mechanism; 3, a sound receiving box; 31, a sound receiver II; 32, a sound receiving box driving mechanism; and 4, a vacuum glass to be detected. DETAILED DESCRIPTION

[0024] The application will be further described below with reference to the drawings.

[0025] Example 1

[0026] As Figure 1 shown is a vacuum glass heat insulation performance testing device according to the application, which comprises a control system, a soundproof room 1, a sound emitting box 2 and a sound receiving box 3 arranged in the soundproof room 1, a sound emitter 21 and a sound receiver I 22 arranged in the sound emitting box 2, and a sound receiver II 31 arranged in the sound receiving box 3.

[0027] The sound emitting box and the sound receiving box are arranged oppositely and placed parallelly on the ground, the sound emitting box and the sound receiving box are each provided with an opening on the opposite two side walls, the sound emitter, the sound receiver II and the opening are on the same straight line, and the vacuum glass is placed between the openings of the sound emitting box and the sound receiving box; the sound emitting box driving mechanism 23 and the sound receiving box driving mechanism 32 are further included, the sound emitting box is movable forward and backward under the action of the sound emitting box driving mechanism, and the sound receiving box is movable forward and backward under the action of the sound receiving box driving mechanism.

[0028] The sound emitter, the sound receiver I, the sound receiver II, the sound emitting box driving mechanism and the sound receiving box driving mechanism are electrically connected with the control system.

[0029] A method for testing the vacuum glass by using the above-mentioned vacuum glass heat insulation performance testing device comprises the following steps.

[0030] First step: the vacuum glass 4 to be detected is transported to the openings of the sound emitting box 2 and the sound receiving box 3;

[0031] Second step: the control system sends an instruction to drive the sound emitting box driving mechanism 23 and the sound receiving box driving mechanism 32 to move the sound emitting box 2 and the sound receiving box 3 respectively until the vacuum glass is clamped; in order to ensure that the sound emitting room and the sound receiving room maintain a certain sound insulation effect, a sealing rubber strip is arranged at the opening of the sound emitting box and the sound receiving box.

[0032] Third step: after stabilization, keep silent, open the sound emitter 2 to make a certain decibel sound, then send a signal to the sound receiver 21 to test, to confirm that the decibel collected by the sound receiver 21 is the same as the decibel emitted by the sound emitter;

[0033] Fourth step: send the decibel collected by the sound receiver 31 to the computer for recording, and compare with the standard database to confirm whether the heat transfer U value of the vacuum glass is qualified.

[0034] The principle of the present application is that the transmission of temperature and sound is completed by air, the thinner the air in the vacuum glass cavity, the higher the vacuum degree, and the worse the transmission of temperature and sound. The remaining decibel after the decibel emitted by the sound emitter is blocked by the vacuum glass is the decibel collected by the sound receiver II, which is less.

[0035] The following examples illustrate how to obtain the standard database.

[0036] The commonly used vacuum glass usually has an area of 1 square, 2 square, 3 square, 4 square and 5 square. According to the national standard of vacuum glass, the U value less than 1.0 is qualified. The enterprise usually has its own internal standard, assuming that the U value of the internal standard of the enterprise is 0.8.

[0037] Firstly, select one piece of vacuum glass with an area of 1 square, 2 square, 3 square, 4 square and 5 square and a U value of 0.8;

[0038] Then, the five pieces of vacuum glass are detected by the vacuum glass heat insulation performance testing device of the present application, the decibel dB1 emitted by the sound emitter is recorded, the decibel dB2 collected by the sound receiver II is collected, and the blocking rate S=(dB1-dB2) / dB1 is calculated respectively, the blocking rates of the five pieces of glass are S A , S B , S C , S D , S E , S A , S B , S C , S D , S E That is, a standard database for reference is formed.

[0039] Finally, the vacuum glass with the corresponding area to be detected is detected by the vacuum glass heat insulation performance testing device of the present application, and the value S X of the blocking rate is determined, the blocking rate S X is compared with the blocking rate of the vacuum glass with the corresponding area in the standard database, and the value greater than that in the standard database is qualified.

[0040] Taking the vacuum glass with an area of 1 square meter and a U value of 0.8 as an example, assuming that the blocking rate SA S is 90%, S A That is, the standard data can be referenced. If a block of 1 square of vacuum glass is detected, its blocking rate S X is 80%, its U value must be greater than 0.8, then it is unqualified, if its blocking rate S X is greater than 90%, its U value must be less than 0.8, then it is qualified.

[0041] Example 2

[0042] The difference between this embodiment and example 1 is that the sound emitting box and the sound receiving box are vertically placed up and down, the sound emitting box is fixed on the ground of the soundproof room, the sound receiving box is fixed directly above the sound emitting box, the sound emitting box can move up and down under the action of the sound emitting box driving mechanism, and the sound receiving box can move up and down under the action of the sound receiving box driving mechanism.

[0043] Example 3

[0044] The difference between this embodiment and example 1 is that the sound emitting box and the sound receiving box are vertically placed up and down, the sound emitting box is fixed on the ground of the soundproof room, the sound receiving box is fixed directly above the sound emitting box, the sound emitting box can move up and down under the action of the sound emitting box driving mechanism, and the sound receiving box can move up and down under the action of the sound receiving box driving mechanism.

[0045] In the description of the present application, it should be pointed out that the terms "front end", "rear end", "left and right", "up", "down", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0046] In the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "set", "install", "connect", "connect", "communicate" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] The above is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A test method of a vacuum glass heat insulation performance test device, characterized by, It comprises the following steps: First step: the vacuum glass (4) to be detected is transported to the opening of the sound emitting box (2) and the sound receiving box (3); Second step: the control system sends a command to drive the sound emitting box pushing mechanism (23) and the sound receiving box pushing mechanism (32) to drive the sound emitting box (2) and the sound receiving box (3) to move respectively until the vacuum glass is clamped; Third step: the sound emitter (21) is turned on to emit a certain number of decibels, and then the sound receiver I (22) is notified to test to confirm that the number of decibels collected by the sound receiver I (22) is the same as the number of decibels emitted by the sound emitter (21); Fourth step: the number of decibels collected by the sound receiver II (31) is sent to the computer for recording and comparison with the standard database to confirm whether the heat transfer U value of the vacuum glass is qualified; The vacuum glass heat insulation performance testing device comprises a control system, a soundproof room (1), a sound emitting box (2) and a sound receiving box (3) arranged in the soundproof room (1), a sound emitter (21) and a sound receiver I (22) arranged in the sound emitting box (2), and a sound receiver II (31) arranged in the sound receiving box (3); The sound emitting box (2) and the sound receiving box (3) are oppositely arranged, and the sound emitting box (2) and the sound receiving box (3) are oppositely arranged on the two side walls, and the sound emitter (21), the sound receiver II (31) and the opening are on the same straight line, and the vacuum glass is placed between the openings of the sound emitting box (2) and the sound receiving box (3); It also comprises a sound emitting box pushing mechanism (23) and a sound receiving box pushing mechanism (32), the sound emitting box (2) can move forward and backward or up and down under the action of the sound emitting box pushing mechanism (23), and the sound receiving box (3) can move forward and backward or up and down under the action of the sound receiving box pushing mechanism (32); The sound emitter (21), the sound receiver I (22), the sound receiver II (31), the sound emitting box pushing mechanism (23) and the sound receiving box pushing mechanism (32) are electrically connected with the control system. The sound emitting box (2) and the sound receiving box (3) are placed parallel on the ground, the sound emitting box (2) can move forward and backward under the action of the sound emitting box pushing mechanism (23), and the sound receiving box (3) can move forward and backward under the action of the sound receiving box pushing mechanism (32).

2. The test method of the vacuum glass heat insulation performance test apparatus according to claim 1, wherein The sound emitting box (2) and the sound receiving box (3) are vertically arranged, the sound emitting box (2) is fixed on the ground of the soundproof room (1), the sound receiving box (3) is fixed directly above the sound emitting box (2), the sound emitting box (2) can move up and down under the action of the sound emitting box pushing mechanism (23), and the sound receiving box (3) can move up and down under the action of the sound receiving box pushing mechanism (32).

3. The test method of the vacuum glass heat insulation performance test apparatus according to claim 1, wherein The sound emitting box (2) and the sound receiving box (3) are vertically arranged, the sound receiving box (3) is fixed on the ground of the soundproof room (1), the sound emitting box (2) is fixed directly above the sound receiving box (3), the sound emitting box (2) can move up and down under the action of the sound emitting box pushing mechanism (23), and the sound receiving box (3) can move up and down under the action of the sound receiving box pushing mechanism (32).

4. The test method of the vacuum glazing performance test apparatus according to claim 1, characterized in that, The sound emitting box (2) and the sound receiving box (3) are provided with sealing rubber strips at the openings.

5. The method of claim 1-4, wherein, ​

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