CN210108647U - Comprehensive detection equipment for sealing performance and ventilation performance of valve - Google Patents
Comprehensive detection equipment for sealing performance and ventilation performance of valve Download PDFInfo
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- CN210108647U CN210108647U CN201920996198.1U CN201920996198U CN210108647U CN 210108647 U CN210108647 U CN 210108647U CN 201920996198 U CN201920996198 U CN 201920996198U CN 210108647 U CN210108647 U CN 210108647U
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Abstract
The utility model relates to the detection field of the sealing performance and the ventilation performance of a valve, and provides a comprehensive detection device of the sealing performance and the ventilation performance of the valve, a fan is connected with one end of an air inlet pipe, the air inlet pipe is provided with a full-pressure ring and a static pressure ring, the full-pressure ring is connected with a micro-differential pressure sensor c, the static pressure ring is connected with a micro-differential pressure sensor b, the other end of the air inlet pipe is connected with the inside of a static pressure box, the static pressure box is provided with an exhaust valve mounting hole, the static pressure box disc is fixed at one side of the static pressure box, the static pressure box disc is provided with a plurality of holes, an air pump is sequentially connected with a filter, a pressure regulating valve, a pressure gauge, a precise pressure regulating valve and a flow meter, after the flow meter is connected with one end of a first connecting pipe, the other end of the first connecting pipe passes through the, the sealing performance of the sealing valve and the ventilation performance of the exhaust valve ensure the quality of the valve.
Description
Technical Field
The utility model relates to a detection area of the sealing performance and the ventilation performance of valve mainly relates to an exhaust valve, the sealing performance of sealing valve and the equipment that the ventilation performance of exhaust valve detected.
Background
The exhaust valve is used as protective equipment applied to civil air defense projects, and is widely used in environments such as residential areas, shopping malls, emergency shelters and the like, so that the quality detection of the exhaust valve is particularly important. At present, equipment capable of detecting the performance of the exhaust valve does not exist in the market, and when danger occurs, the unqualified exhaust valve has great potential safety hazard to the personal safety, so that the market urgently needs a test device for detecting the safety performance of the exhaust valve.
SUMMERY OF THE UTILITY MODEL
Purpose of the utility model
In order to detect exhaust valve's seal and ventilation performance, the utility model provides a seal performance and ventilation performance comprehensive testing equipment of valve.
Technical scheme
The air inlet pipe is provided with a full pressure ring and a static pressure ring, the full pressure ring is positioned on one side close to the air inlet pipe and is connected with the micro-pressure difference sensor, the static pressure ring is connected with the micro-pressure difference sensor, the other end of the air inlet pipe is connected with the inside of the static pressure box, the static pressure box is provided with an exhaust valve mounting hole, a static pressure box disc is fixed on one side of the static pressure box, the static pressure box disc is different from the exhaust valve mounting hole, and the static pressure box disc is provided with a plurality of holes;
the air pump is connected with one end of a filter, the other end of the filter is connected with one end of a pressure regulating valve, the other end of the pressure regulating valve is connected with one end of a pressure gauge, the other end of the pressure gauge is connected with one end of a precision pressure regulating valve, the other end of the precision pressure regulating valve is connected with one end of a flow meter, the other end of the flow meter is connected with one end of a first connecting pipe, the other end of the first connecting pipe penetrates through a hole in a static pressure box disc, a micro-pressure difference sensor is connected with one end of a second connecting pipe, and the other.
The detection case is equipped with maintenance door and display screen, and the display screen is connected minute differential pressure sensor, minute differential pressure sensor and is used for showing minute differential pressure sensor, minute differential pressure sensor and differential pressure sensor's reading.
The static pressure box is a hollow box body, the static pressure box disc is fixed with the static pressure box through a plurality of supports, the static pressure box is provided with a movable door, and the exhaust valve mounting hole is formed in the movable door.
The movable door is connected with the static pressure box through a plurality of fasteners.
The first connecting pipe and the second connecting pipe are hoses.
4 first pressure measuring pipes which are crossed are arranged in the full pressure ring, a plurality of air inlets are formed in the first pressure measuring pipes, the first pressure measuring pipes penetrate out of the full pressure ring and are communicated with first T-shaped supporting pipes, and two adjacent first T-shaped supporting pipes are communicated through a hose;
and the static pressure ring is provided with a second pressure measuring pipe, the second pressure measuring pipe is provided with an air inlet in the static pressure ring, the second pressure measuring pipe is communicated with a second T-shaped supporting pipe, and two adjacent second T-shaped supporting pipes are communicated through a hose.
The micro differential pressure sensor is connected with a first T-shaped supporting pipe of the static pressure ring through a hose, and the micro differential pressure sensor is connected with a second T-shaped supporting pipe of the full pressure ring through a hose.
The length of the air inlet pipe between the detection box and the static pressure box is more than three times of the diameter of the air inlet pipe.
The advantages and effects are as follows:
the utility model provides a pair of seal performance and ventilation performance comprehensive testing equipment of valve has following advantage and effect
1. The utility model discloses an integrated level is high, has integrateed the seal performance and the ventilation performance detection function of valve simultaneously.
2. The utility model discloses convenient to use, easy operation waits to detect valve easy dismounting, easy operation during the detection.
3. The utility model discloses easy maintenance, when breaking down, the maintenance door that can open the detection case maintains, need not to dismantle equipment.
4. The utility model discloses save space, the hose that first connecting pipe and second connecting pipe used detects and finishes and can pull down, has saved equipment space.
Drawings
FIG. 1 is a schematic view of the overall connection of the present detection apparatus;
FIG. 2 is a schematic view of the back side connection of the present inspection apparatus;
FIG. 3 is a schematic view of the connection of the airtightness detection apparatus;
FIG. 4 is a view of a full compression ring configuration;
fig. 5 is a structure view of the static pressure ring.
Description of reference numerals:
a fan (1); an air inlet pipe (2); a full compression ring (3); a static pressure ring (4); a detection box (5); a flow meter (6); a precision pressure regulating valve (7); a display screen (8); a static pressure box (9); an air pump (10); a valve (11) to be tested; an exhaust valve mounting hole (12); a first connecting pipe (13); a second connection pipe (14); a plenum box plate (15); a filter (16); a pressure regulating valve (17); a pressure gauge (18); a micro differential pressure sensor a (19); a micro differential pressure sensor b (20); a micro differential pressure sensor c (21); a movable door (22); a fastener (23); a first pressure measuring tube (24); a first T-shaped support tube (25); a second T-shaped support tube (26); a second pressure measuring tube (27).
Detailed Description
The comprehensive detection equipment for the sealing performance and the ventilation performance of the valve is shown in figures 1 and 2:
fan 1 is connected with the one end of air-supply line 2, air-supply line 2 is equipped with full clamping ring 3 and static pressure ring 4, pass through flange joint between air-supply line 2 and the full clamping ring 3 and the static pressure ring 4, full clamping ring 3 is located the one side that is close to fan 1, full clamping ring 3 is connected with little differential pressure sensor c21, static pressure ring 4 is connected with little differential pressure sensor b20, the other end and the static pressure case 9 internal connection of air-supply line 2, static pressure case 9 is equipped with exhaust valve mounting hole 12, static pressure case dish 15 is fixed in one side of static pressure case 9, static pressure case dish 15 is different sides with exhaust valve mounting hole 12, static pressure case dish 15 is equipped with a plurality of holes and is used for inserting first connecting pipe 13, second connecting pipe 14, and is used for installing and waits to.
As shown in fig. 3, the arrow at the bottom is the air flow direction, the dotted line is the inside of the detection box 5, the air pump 10 is connected with one end of the filter 16 through a hose, the other end of the filter 16 is connected with one end of the pressure regulating valve 17 through a hose, the other end of the pressure regulating valve 17 is connected with one end of the pressure gauge 18 through a hose, the other end of the pressure gauge 18 is connected with one end of the precision pressure regulating valve 7 through a hose, the other end of the precision pressure regulating valve 7 is connected with one end of the flow meter 6 through a hose, the pressure gauge 18 is used for reducing the air outlet pressure of the fan 1, the precision pressure regulating valve 7 is used for regulating the air flow rate in the pipeline, the other end of the flow meter 6 is connected with one end of the first connecting pipe 13, the first connecting pipe 13 and the second connecting pipe 14 are both hoses, the, the micro-pressure difference sensor a 19 is connected with one end of the second connecting pipe 14, the other end of the second connecting pipe 14 passes through the gap of the bracket at the back of the static pressure box disc 15, then passes through another hole of the static pressure box disc 15 and extends into the valve to be tested, the valve to be tested 11 is installed through the hole of the static pressure box disc 15, and the unused hole on the static pressure box disc 15 needs to be sealed to avoid air leakage.
The micro differential pressure sensor a 19, the micro differential pressure sensor b20 and the micro differential pressure sensor c21 are of the ZCY-012 type, which is the Ditacheson brand.
The detection box 5 is provided with a maintenance door and a display screen 8, the display screen 8 is connected with a micro-pressure difference sensor a 19, a micro-pressure difference sensor b20 and a micro-pressure difference sensor c21, and the display screen 8 is used for displaying the readings of the micro-pressure difference sensor a 19, the micro-pressure difference sensor b20 and the micro-pressure difference sensor c 21.
The static pressure box 9 is a hollow box body, the static pressure box disc 15 is fixed with the static pressure box 9 through a plurality of supports, the static pressure box 9 is provided with a movable door 22, and the exhaust valve mounting hole 12 is formed in the movable door 22. The flap 22 is connected to the plenum box 9 by a plurality of fasteners 23.
The first connection pipe 13 and the second connection pipe 14 are hoses.
As shown in fig. 4, 4 crossed first pressure-measuring pipes 24 are arranged inside the full-pressure ring 3, a plurality of air inlets are formed in the first pressure-measuring pipes 24, the first pressure-measuring pipes 24 penetrate out of the full-pressure ring 3 and then are connected with first T-shaped supporting pipes 25, and two adjacent first T-shaped supporting pipes 25 are connected through a hose;
as shown in fig. 5, a second pressure-measuring pipe 27 is arranged on the static pressure ring 4, the second pressure-measuring pipe 27 has an air inlet hole in the same side as the air inlet direction in the static pressure ring 4, the second pressure-measuring pipe 27 is connected with a second T-shaped support pipe 26, and two adjacent second T-shaped support pipes 26 are connected through a hose.
The length of the air inlet pipe 2 between the detection box 5 and the static pressure box 9 is more than three times of the diameter of the air inlet pipe 2. When the comprehensive detection equipment for the sealing performance and the ventilation performance of the valve is used for detecting the ventilation performance: open fastener 23, will wait to detect the exhaust valve test piece installation of air permeability and fix exhaust valve mounting hole 12 on dodge gate 22, start fan 1, the air current that fan 1 produced passes through air-supply line 2 in proper order, full clamp ring 3 and static pressure ring 4, get into static pressure case 9 at last, after reaching the exhaust valve test piece opening pressure of waiting to detect the air permeability, minute differential pressure sensor b20 and the reading of minute differential pressure sensor c21 that record display screen 8 shows calculate the air volume, valve ventilation resistance, the resistance coefficient, specifically as follows:
the air density rho is calculated from the measured atmospheric pressure and ambient temperature, and the wind speed VhFrom the air density and the dynamic pressure H measureddCalculated to obtain dynamic pressure HdIs the difference between the pressure values read by the full pressure ring 3 and the static pressure ring 4.
ρ＝0.0348B/T；
T＝273+t；
In the formula: hd-dynamic pressure (Pa);
rho-air Density (Kg/m)3)；
B-ambient atmospheric pressure (Pa) around the device;
t-air absolute temperature (K);
t-air temperature (. degree. C.);
the ambient temperature can be measured by a thermometer, and the atmospheric pressure can be measured by a barometer.
The ventilation is given by Q as follows:
Q＝3600F·Vh；
in the formula: f-cross sectional area (m) of air inlet pipe 22)；
F is obtained by measuring the radius of the air inlet pipe 2 and calculating the cross-sectional area of the pipe body.
According to the measured pressure H of the full pressure ring 3q(Pa), the shutter ventilation resistance H is obtained by the following formulah(Pa)：
Hh＝Hq-Hy；
HyWhen the valve test piece is not installed, the fan 1 is started, the pressure (Pa) is measured by the static pressure ring 4, and the valve resistance coefficient ξzCalculated as follows;
thereby obtaining the ventilation quantity Q and the ventilation resistance H of the valvehCoefficient of resistance ξz。
When the comprehensive detection equipment for the sealing performance and the ventilation performance of the exhaust valve is used for detecting the air tightness, as shown in fig. 2 and 3:
after an exhaust valve to be detected for tightness or a sealed valve to be detected is fixed at the position of a valve to be detected 11, an air pump 10 in a detection box 5 is started, air flow passes through a filter 16, a pressure regulating valve 17, a pressure gauge 18, a precision pressure regulating valve 7, a flowmeter 6, an air tightness hose 13 and the exhaust valve in sequence, the pressure regulating valve 17 and the precision pressure regulating valve 7 on the detection box 5 are used for regulating the size of the air flow, the pressure gauge 18 and the flowmeter 6 on the detection box 5 are used for reading the air flow pressure and the flow rate respectively, the air flow pressure at the end of the exhaust valve is obtained through a micro-pressure sensor a 19, the pressure is kept at the maximum value of the sealed pressure of the exhaust valve, the pressure is kept for a period of time, whether the numerical value.
Claims (6)
1. The utility model provides a closing performance and ventilation performance comprehensive testing equipment of valve which characterized in that: the air blower (1) is connected with one end of an air inlet pipe (2), the air inlet pipe (2) is provided with a full compression ring (3) and a static compression ring (4), the full compression ring (3) is positioned on one side close to the air blower (1), the full compression ring (3) is connected with a micro-pressure difference sensor c (21), the static compression ring (4) is connected with a micro-pressure difference sensor b (20), the other end of the air inlet pipe (2) is connected with the inside of a static pressure box (9), the static pressure box (9) is provided with an exhaust valve mounting hole (12), a static pressure box disc (15) is fixed on one side of the static pressure box (9), the static pressure box disc (15) is different from the exhaust valve mounting hole (12), and the static pressure box disc (15) is provided with;
the air pump (10) is connected with one end of a filter (16), the other end of the filter (16) is connected with one end of a pressure regulating valve (17), the other end of the pressure regulating valve (17) is connected with one end of a pressure gauge (18), the other end of the pressure gauge (18) is connected with one end of a precision pressure regulating valve (7), the other end of the precision pressure regulating valve (7) is connected with one end of a flow meter (6), the other end of the flow meter (6) is connected with one end of a first connecting pipe (13), the other end of the first connecting pipe (13) penetrates through a hole in a static pressure box disc (15), a micro-pressure difference sensor a (19) is connected with one end of a second connecting pipe (14), and the other end of the second connecting pipe (14) penetrates through a hole in.
2. The comprehensive detection device for the sealing performance and the ventilation performance of the valve according to claim 1, wherein: the static pressure box (9) is a hollow box body, the static pressure box disc (15) is fixed with the static pressure box (9) through a plurality of supports, the static pressure box (9) is provided with a movable door (22), and the exhaust valve mounting hole (12) is formed in the movable door (22).
3. The comprehensive detection device for the sealing performance and the ventilation performance of the valve according to claim 2, wherein: the movable door (22) is connected with the static pressure box (9) through a plurality of fasteners (23).
4. The comprehensive detection device for the sealing performance and the ventilation performance of the valve according to claim 1, wherein: the first connecting pipe (13) and the second connecting pipe (14) are hoses.
5. The comprehensive detection device for the sealing performance and the ventilation performance of the valve according to claim 1, wherein: 4 crossed first pressure measuring pipes (24) are arranged in the full-compression ring (3), a plurality of air inlets are formed in the first pressure measuring pipes (24), the first pressure measuring pipes (24) penetrate out of the full-compression ring (3) and then are communicated with first T-shaped supporting pipes (25), and two adjacent first T-shaped supporting pipes (25) are communicated through hoses;
the static pressure ring (4) is provided with a second pressure measuring pipe (27), the second pressure measuring pipe (27) is provided with an air inlet hole in the static pressure ring (4), the second pressure measuring pipe (27) is communicated with a second T-shaped supporting pipe (26), and the two adjacent second T-shaped supporting pipes (26) are communicated through a hose.
6. The comprehensive detection device for the sealing performance and the ventilation performance of the valve according to claim 1, wherein: the micro differential pressure sensor b (20) is connected with a first T-shaped supporting pipe (25) of the static pressure ring (4) through a hose, and the micro differential pressure sensor c (21) is connected with a second T-shaped supporting pipe (26) of the full pressure ring (3) through a hose.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996198.1U CN210108647U (en) | 2019-06-28 | 2019-06-28 | Comprehensive detection equipment for sealing performance and ventilation performance of valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996198.1U CN210108647U (en) | 2019-06-28 | 2019-06-28 | Comprehensive detection equipment for sealing performance and ventilation performance of valve |
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| CN210108647U true CN210108647U (en) | 2020-02-21 |
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| CN201920996198.1U Active CN210108647U (en) | 2019-06-28 | 2019-06-28 | Comprehensive detection equipment for sealing performance and ventilation performance of valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551360A (en) * | 2020-06-24 | 2020-08-18 | 广西鸿泰防护设备检测有限公司 | Method for testing dynamic characteristics of manual and electric closed valve |
| CN112816155A (en) * | 2021-03-01 | 2021-05-18 | 张锦峰 | Portable overpressure-preventing exhaust valve tightness detection device |
| CN113390618A (en) * | 2021-06-10 | 2021-09-14 | 深圳市缚火龙机电实业有限公司 | Fan performance test system |
-
2019
- 2019-06-28 CN CN201920996198.1U patent/CN210108647U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551360A (en) * | 2020-06-24 | 2020-08-18 | 广西鸿泰防护设备检测有限公司 | Method for testing dynamic characteristics of manual and electric closed valve |
| CN112816155A (en) * | 2021-03-01 | 2021-05-18 | 张锦峰 | Portable overpressure-preventing exhaust valve tightness detection device |
| CN113390618A (en) * | 2021-06-10 | 2021-09-14 | 深圳市缚火龙机电实业有限公司 | Fan performance test system |
| CN113390618B (en) * | 2021-06-10 | 2024-01-09 | 深圳市缚火龙机电实业有限公司 | Fan performance test system |
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