CN112254877B - Calibrating device of building element testing machine - Google Patents
Calibrating device of building element testing machine Download PDFInfo
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- CN112254877B CN112254877B CN202010916929.4A CN202010916929A CN112254877B CN 112254877 B CN112254877 B CN 112254877B CN 202010916929 A CN202010916929 A CN 202010916929A CN 112254877 B CN112254877 B CN 112254877B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/007—Leak detector calibration, standard leaks
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Abstract
The invention relates to a calibrating device of a building element testing machine, which comprises a standard pressure gauge and a calibrating pipeline, wherein one end of the calibrating pipeline is a pipeline working port, the pipeline working port is buckled on the periphery of an air outlet of air supply equipment of the building element testing machine or is connected with a negative pressure air port of the air supply equipment, a positive pressure port of the standard pressure gauge is communicated with the calibrating pipeline, the positive pressure port of the standard pressure gauge is communicated with a pressure value taking port of the building element testing machine through a first connecting pipeline, and the standard pressure gauge is provided with a negative pressure port communicated with the negative pressure port of the working pressure gauge of the building element testing machine. The invention solves the technical problem that the calibration process is time-consuming and labor-consuming because the corresponding mounting port needs to be arranged on the front side of the pressure box when the working pressure gauge of the door and window testing machine is calibrated in the prior art.
Description
Technical Field
The invention relates to a calibrating device of a building component testing machine in the field of calibration and verification.
Background
For building members such as doors and windows and glass curtain walls, a building member testing machine is required to detect the air tightness, water tightness and wind pressure resistance of the building members, which can be referred to in GB/t7106-2019 "method for detecting air tightness, water tightness and wind pressure resistance of external building doors and windows", the international 5.1 specifies the process of detecting the air tightness of the building members, as shown in fig. 1: the building element testing machine comprises a pressure box 1, an air supply device 5 is arranged on a rear box plate of the pressure box, an air supply device air outlet 2 is arranged on a rear box wall of the pressure box, an installation frame 14 is arranged on the front side of the pressure box, an installation opening for installing a building element g is arranged on the installation frame, the installation opening is enclosed by enclosing plates, the arrangement mode of the enclosing plates can be changed according to the size of the building element 10 during use, so that the size of the installation opening is changed, a buckling box 11 is buckled on the front side of the installation frame, a sealing strip 12 is arranged between the buckling box and the installation frame, an air flow device, namely an air flow meter 9 for detecting the air tightness of the building element is arranged on the buckling box, and a buckling box air port 3 connected with the air flow meter is arranged on the buckling box. The pressure tank is connected with a differential pressure measuring device 7, the core element of the differential pressure measuring device is a working pressure gauge, a pressure value port connected with the differential pressure measuring device is arranged on the pressure tank, the pressure value port is equivalent to a positive pressure port of the working pressure gauge and communicated with the pressure tank, and a negative pressure port of the working pressure gauge and communicated with the buckle tank.
When the pressure tank is used, the building component is installed on the installation opening of the installation frame, the air supply equipment supplies air to the pressure tank, the air tightness of the building component is detected through the air leakage amount detected by the air flow meter, and the pressure loss condition of the pressure tank is detected through the differential pressure measuring device. According to the standard, in order to ensure the test accuracy of the building component testing machine, the air inlet of the air flow meter and the air inlet of the working pressure gauge need to be regularly calibrated (not more than 6 months), and the calibration method is to install a standard test piece at the installation opening, wherein the standard test piece is a standard test piece for pouring the air flow meter of the building component testing machine, which is disclosed in Chinese patent CN 110470363A.
Be provided with air flow regulation structure and standard air flowmeter in this standard test piece, need install this standard test piece in the installing port department of pressure tank front side during the use, detain the case in the periphery of standard test piece, utilize standard test piece to simulate door and window, air supply equipment works, compare through detaining the indicating value of job flow meter on the case and standard test piece on the standard flow meter and come the calibration to job flow meter, job pressure gauge's calibration mode is similar with this mode, also need detain even standard test piece on the installing port, simulation when in order to realize testing door and window.
The existing work flow meter and work pressure meter calibration method has the following problems: when carrying out the calibration to door and window testing machine, need enclose into the installing port size of adaptation through the bounding wall in the front side of pressure tank according to standard test piece's size, this installing port encloses the process of establishing and wastes time and energy very, calibration efficiency is not high, because the size of each producer door and window testing machine all is different, still appear sometimes even, the minimum installing port size that the door and window testing machine of a model can enclose still is greater than standard test piece's size, lead to calibration work to go on can't continue.
Disclosure of Invention
The invention aims to provide a calibrating device of a building element testing machine, which aims to solve the technical problem that in the prior art, when a working pressure gauge of the building element testing machine is calibrated, a corresponding mounting hole needs to be arranged on the front side of a pressure box, so that the calibrating process is time-consuming and labor-consuming.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a calibrating device of building element testing machine, including the standard pressure gauge, still include the calibration pipeline, the one end of calibration pipeline is the pipeline work mouth, the pipeline work mouth is detained and is connected in the peripheral or pipeline work mouth of air supply equipment air outlet of building element testing machine and the negative pressure wind gap of air supply equipment and link to each other, the malleation mouth and the calibration pipeline of standard pressure gauge communicate with each other, the malleation mouth of standard pressure gauge communicates with each other through the pressure value mouth of first connecting tube way with building element testing machine, the standard pressure gauge has the communicating negative pressure mouth of negative pressure mouth that is used for the work pressure gauge with building element testing machine.
One end of the first connecting pipeline is connected with the positive pressure port of the standard pressure gauge, and the other end of the first connecting pipeline is connected to the periphery of the pressure value taking port through a sealing buckle to be communicated with the pressure value taking port.
And a negative pressure port of the standard pressure gauge is communicated with a negative pressure port of a working pressure gauge of the building element testing machine through a second connecting pipeline.
The other end of the calibration pipeline is provided with a box buckling fan cover which is used for being in sealing buckling connection with the periphery of the inner side of the box buckling air port, a standard flowmeter is arranged on the calibration pipeline in series at the upstream or the downstream of the box buckling fan cover, and an air flow adjusting structure is arranged in the calibration pipeline between the standard flowmeter and the standard pressure gauge.
The calibration pipeline is including being used for sealed lock to articulate in the peripheral pressure tank fan housing of air supply equipment air outlet, and the one end of pressure tank fan housing constitutes pipeline work mouth, standard pressure gauge and air flow regulation structure all set up in the pressure tank fan housing.
The invention has the beneficial effects that: according to the invention, when the standard pressure gauge of the building component testing machine is calibrated, a mounting port is not required to be arranged on the front side of the pressure box, a pipeline working port of the calibration pipeline is directly connected with an air outlet of air supply equipment or a negative pressure air port of the air supply equipment to take pressure, the first connecting pipeline is connected with a pressure value taking port of the building component testing machine to realize that a positive pressure port of the standard pressure gauge is communicated with a positive pressure port of the working pressure gauge, then a negative pressure port of the standard pressure gauge is communicated with a negative pressure port of the working pressure gauge, so that the pressure environments of corresponding pressure ports of the standard pressure gauge and the working pressure machine are consistent, and the working pressure gauge is calibrated. According to the invention, the pressure box of the building element testing machine is not required to be surrounded with the mounting port, so that the calibration work is simplified.
Drawings
FIG. 1 is a schematic structural view of a construction component testing machine according to the background art of the present invention;
FIG. 2 is a state diagram of use of embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a construction member testing machine in embodiment 1 of the present invention;
fig. 4 is a state diagram of use of embodiment 2 of the present invention.
Detailed Description
An example 1 of the calibration device for a building member testing machine according to the present invention is shown in fig. 2 to 3: before carrying out the structure explanation to this calibrating device, at first carry out simple introduction to the building element testing machine among the prior art, the building element testing machine in this embodiment is mostly door and window testing machine, as shown in fig. 3, building element testing machine is provided with the pressure tank 1 of air supply equipment 5 including detaining case 11 and rear side, is provided with the air supply equipment air outlet 2 that links to each other with the air supply equipment on the pressure tank 1, still is provided with pressure value mouth 4 on the pressure tank, is connected with work pressure gauge 7 on the pressure value mouth. The box-fastening air port 3 of the box-fastening is connected with a work flow meter 9.
This calibrating device includes the calibration pipeline, and the calibration pipeline includes pressure tank fan housing 15, detains case fan housing 17, and it has standard flowmeter 16 to concatenate between pressure tank fan housing 15 and the knot case fan housing 17, detains case fan housing 17 and is used for the sealed cowling to locate corresponding knot incasement side detain case wind gap 3 peripheral to concatenate standard flowmeter 16 and the work flowmeter 9 of detaining on the case.
One end that standard flowmeter 16 was kept away from to pressure tank fan housing 15 forms the pipeline work mouth, and the pipeline work mouth is used for sealed lock to connect in the periphery of air supply equipment air outlet 2, is provided with standard pressure gauge 13 in the pressure tank fan housing, is provided with air flow regulation structure 14 between standard pressure gauge 13 and the standard flowmeter 16, and air flow regulation structure includes a plurality of wind gaps, and every wind gap department all is provided with the air door, during the use, through opening the wind gap that corresponds quantity, realizes the adjustment of air flow. The malleation mouth and the pressure tank fan housing of standard pressure gauge and air supply equipment air outlet communicate with each other, and the malleation mouth of standard pressure gauge communicates with each other through the pressure value mouth 4 of first connecting tube way 12 and building element testing machine, and the one end of first connecting tube way 12 links to each other with the malleation mouth of standard pressure gauge, and one end is in pressure value mouth 4 periphery through sealed lock and is realized communicating with each other with the pressure value mouth in addition. The negative pressure port of the standard pressure gauge 13 is communicated with the negative pressure port of the working pressure gauge 7 of the building component testing machine through the second connecting pipeline 10, and when the negative pressure port of the working pressure gauge is communicated with the atmosphere, the second connecting pipeline is not required to be arranged, so that the negative pressure port of the standard pressure gauge is communicated with the atmosphere.
Example 2 of the calibration device of the building element tester is shown in fig. 4: embodiment 2 is different from embodiment 1 in that, for the glass curtain wall testing machine, the size of the air supply device air outlet 2 is large, and if the technical scheme that the pressure tank air cover is fastened to the periphery of the air supply device air outlet 2 in embodiment 1 is adopted, the pressure tank air cover needs to be large and heavy, so that in this embodiment, the calibration pipeline 20 is directly connected with the air inlet of the air supply device air outlet, namely the negative pressure air outlet, and thus the size of the calibration pipeline can be effectively reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (1)
1. A calibrating device of building element testing machine which characterized in that: the building component testing machine comprises a buckling box and a pressure box, wherein an air supply device is arranged on the rear side of the pressure box, an air outlet of the air supply device connected with the air supply device is arranged on the pressure box, a pressure value port is also arranged on the pressure box, a working pressure gauge is connected onto the pressure value port, a working flow meter is connected onto a buckling box air port of the buckling box, a calibrating device comprises a calibrating pipeline, the calibrating pipeline comprises a pressure box air cover and a buckling box air cover, a standard flow meter is connected between the pressure box air cover and the buckling box air cover in series, the buckling box air cover is used for sealing and covering the periphery of the buckling box air port on the inner side of the corresponding buckling box so as to connect the standard flow meter and the working flow meter on the buckling box in series, a pipeline working port is formed at one end, away from the standard flow meter, of the pressure box air cover, pipeline work mouth is used for sealed lock to link in the periphery at air supply equipment air outlet, be provided with standard pressure gauge in the pressure tank fan housing, be provided with air flow regulation structure between standard pressure gauge and the standard flowmeter, the malleation mouth and pressure tank fan housing and the air supply equipment air outlet of standard pressure gauge communicate with each other, the malleation mouth of standard pressure gauge communicates with each other through the pressure value mouth of first connecting tube and building element testing machine, the one end of first connecting tube links to each other with the malleation mouth of standard pressure gauge, in addition one end through sealed lock link in pressure value mouth periphery and realize communicating with each other with pressure value mouth, the negative pressure mouth of standard pressure gauge communicates with each other through the negative pressure mouth of the work pressure gauge of second connecting tube and building element testing machine.
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| CN202010916929.4A CN112254877B (en) | 2020-09-03 | 2020-09-03 | Calibrating device of building element testing machine |
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| CN202010916929.4A CN112254877B (en) | 2020-09-03 | 2020-09-03 | Calibrating device of building element testing machine |
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| CN112254877B true CN112254877B (en) | 2022-10-18 |
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Effective date of registration: 20220906 Address after: 450000 No. 818, incubation building, No. 1, No. 11, Changchun Road, high tech Zone, Zhengzhou City, Henan Province Applicant after: Henan Dagen metrology and Testing Institute Co.,Ltd. Applicant after: Henan Yangcheng Industrial Equipment Co.,Ltd. Address before: Room 2403, 24 / F, building 1, 238 Tongbai South Road, Zhongyuan District, Zhengzhou City, Henan Province, 450000 Applicant before: Henan Niupa Institute of Mechanical Engineering |
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