CN220566275U - Novel FFU fan wind speed test equipment - Google Patents
Novel FFU fan wind speed test equipment Download PDFInfo
- Publication number
- CN220566275U CN220566275U CN202322262814.XU CN202322262814U CN220566275U CN 220566275 U CN220566275 U CN 220566275U CN 202322262814 U CN202322262814 U CN 202322262814U CN 220566275 U CN220566275 U CN 220566275U
- Authority
- CN
- China
- Prior art keywords
- air
- ffu
- box
- fixed mounting
- static pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000002474 experimental method Methods 0.000 claims abstract description 24
- 230000003068 static effect Effects 0.000 claims description 38
- 239000000523 sample Substances 0.000 claims description 9
- 230000030279 gene silencing Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims 2
- 230000008030 elimination Effects 0.000 claims 2
- 238000003379 elimination reaction Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 abstract description 18
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000003749 cleanliness Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model provides novel FFU fan wind speed testing equipment, relates to the technical field of wind speed testing, and comprises a high-efficiency filter, wherein an experiment box is fixedly arranged at one end of the high-efficiency filter, and an experiment tube with the same diameter is fixedly arranged at one end of the experiment box. The utility model has the advantages that: the air inlet air quantity and the air outlet air speed have a certain corresponding relation, the air pressure is measured at the air inlet, then the air outlet air speed can be measured according to the relation between the air inlet air quantity and the air outlet air speed, the FFU air inlet is arranged in the negative pressure chamber and is separated from the clean room through a filter screen, the measurement cannot interfere with the clean room, the problem of the existing measurement air speed can be perfectly solved, the pressure of air is detected at the air inlet end and the air outlet end respectively, the pressure difference of the air entering and exiting at the detection position is detected, the flow of the air is detected in the air conveying process, and the measurement of the air speed of the fan can be accurately completed according to the pressure difference and the flow detection of the air.
Description
Technical Field
The utility model relates to the technical field of wind speed testing, in particular to novel FFU fan wind speed testing equipment.
Background
The cleanliness of the clean room depends on the number of ventilation, which is determined by the air outlet wind speed since the FFU is fixed in number and the air outlet area is determined in the determined clean room. Therefore, the cleanliness and the wind speed have a definite one-to-one correspondence, and the measurement, recording and real-time adjustment of the wind speed of the air outlet have very important significance for guaranteeing the cleanliness of the clean room.
However, it is not easy to accurately measure the wind speed of the FFU, on one hand, due to the FFU structure, the wind speed is different at each position of the filter screen after the air flow passes through the filter screen, and the common measurement method is to average by multi-point test, thus certain error is necessarily caused; on the other hand, the FFU is generally arranged at the ceiling position and is higher than the ground, so that a measurer can hardly hold the testing instrument; moreover, the measuring port is required to be precisely vertical to the filter screen, and has slight deviation, and the wind speed measurement data has great deviation; finally, the measuring personnel need to enter the clean room, which is inconvenient and can bring pollution to the clean room; in summary, the existing air volume and air speed testing method has a large limitation.
Disclosure of Invention
Therefore, the utility model aims to provide novel FFU fan wind speed testing equipment so as to solve the problems in the background technology and overcome the defects in the prior art.
In order to achieve the above object, an embodiment of an aspect of the present utility model provides a novel FFU fan wind speed testing apparatus, including a primary filter, one end of the primary filter is fixedly provided with a silencing elbow, one end of the silencing elbow is fixedly provided with a static pressure box, a variable frequency fan is fixedly installed inside the static pressure box, one end of the variable frequency fan is fixedly provided with a soft joint, one end of the soft joint is fixedly provided with a reducing pipe, one end of the reducing pipe is fixedly provided with a closed regulating valve, one end of the closed regulating valve is fixedly provided with a reducing experimental pipe, one end of the reducing experimental pipe is fixedly provided with a high-efficiency filter, one end of the high-efficiency filter is fixedly provided with an experimental box, one end of the experimental box is fixedly provided with a same-diameter experimental pipe, one end of the same-diameter experimental pipe is fixedly provided with a static pressure box, the inside of the static pressure box is provided with a tested FFU, and the tested FFU is in signal connection with an FFU controller.
By any of the above schemes, preferably, the silencing elbow is fixedly installed at the top end of the fixed box, and one end of the fixed box is fixedly installed with a temperature and humidity sensor.
The technical scheme is adopted: the primary filter guides the filtered gas into the fixed box through the silencing elbow, and the temperature and humidity sensor monitors the temperature and humidity of the environment inside the fixed box.
By the above-mentioned scheme preferred, variable frequency fan fixed mounting is in the inside of fixed box, variable frequency fan's air-out end runs through fixed box and flexible joint connection.
The technical scheme is adopted: the inside of the reducer pipe is conveyed to the gas inside the fixed box through the variable frequency fan, and the soft joint is used for connecting and protecting the variable frequency fan and the reducer pipe, so that the stability of connection of the variable frequency fan and the reducer pipe is ensured.
By the above-mentioned scheme preferred, the middle part fixed mounting of reducing experimental tube has two flow equalizing plates and two static pressure rings, two flow equalizing plates are located the both sides of two static pressure rings respectively, two the static pressure ring is adjacent, two be provided with a differential pressure sensor between the static pressure ring, one side of static pressure ring is provided with the flow measurement nozzle with reducing experimental tube fixed mounting.
The technical scheme is adopted: the flow equalization plates are used for equalizing the gas in the variable-diameter experimental tube, so that the stability of detected gas flow is guaranteed, the static pressure ring is arranged between the two flow equalization plates, the static pressure is carried out on the gas after flow equalization through the static pressure ring, the pressure stability of the detected gas is guaranteed, the differential pressure sensor is convenient for detecting the gas in the variable-diameter experimental tube, and the flow of the gas is detected through the flow measuring nozzle.
By the above-mentioned scheme preferred, the one end of experimental box is provided with the door and window that opens and shuts, the one end that experimental box is close to same diameter experimental pipe is provided with another temperature and humidity sensor.
The technical scheme is adopted: the gas after detection is contained through the experiment box, after the experiment can be carried out on the gas in the experiment box, the gas is led into the experiment tube with the same diameter, and the temperature and humidity sensor carries out temperature and humidity detection on the inside of the experiment box.
By any of the above schemes, preferably, the static pressure tank is fixedly provided with a support bracket inside, the tested FFU is fixedly provided inside the support bracket, the tested FFU is electrically connected with a power supply, and the power supply is electrically connected with a power meter.
The technical scheme is adopted: after gas is led into the static pressure box, the tested FFU conveys the gas out, the tested FFU is powered by a power supply, and the power meter detects the power of the tested FFU.
By any of the above schemes, it is preferable that a pressure probe is fixedly installed at the top of one end of the static pressure box, and the pressure probe is connected with another differential pressure sensor in a signal manner.
The technical scheme is adopted: the pressure probe detects the air pressure before the FFU to be tested in the static pressure box is conveyed, detection data are transmitted to the differential pressure sensors, and the air speed of the fan of the FFU to be tested can be tested through the data between the two differential pressure sensors.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. according to the principle of equal value in each direction of the air pressure, the air flow pressure measurement is relatively easy, the air speed measurement can be converted into the pressure difference measurement through experimental equipment, the accurate air speed value can be obtained relatively easily, according to conservation of substances, the air inlet air quantity is equal to the air outlet air quantity of the air outlet in a closed pipeline, the corresponding air inlet air quantity and air outlet air speed have a certain corresponding relation, the air outlet air speed can be measured according to the relation between the air inlet air quantity and the air outlet air speed by measuring the air pressure at the air inlet, the FFU air inlet is separated from the clean room in the negative pressure chamber through a filter screen, the measurement cannot interfere the clean room, the problem of the existing measurement air speed can be perfectly solved, the pressure difference of the air entering and exiting the air at the air inlet end and the air outlet end is detected, meanwhile, the air flow of the air is detected in the air conveying process, and the measurement of the air speed of the fan can be accurately completed according to the pressure difference and the flow detection of the air.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a structure according to an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present utility model;
FIG. 3 is an enlarged schematic view of the structure A in FIG. 1 according to an embodiment of the present utility model;
wherein: 1-primary filter, 2-silencing elbow, 3-fixed box, 4-variable frequency fan, 5-soft joint, 6-reducing pipe, 7-closed regulating valve, 8-reducing experimental pipe, 9-high efficiency filter, 10-experimental box, 11-same diameter experimental pipe, 12-static pressure box, 13-tested FFU, 14-FFU controller, 15-temperature and humidity sensor, 16-flow equalizing plate, 17-static pressure ring, 18-differential pressure sensor, 19-flow measuring nozzle, 20-bracket and 21-pressure probe.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following.
As shown in fig. 1-3, the novel FFU fan wind speed testing device in the embodiment of the utility model comprises a primary filter 1, wherein a silencing elbow 2 is fixedly installed at one end of the primary filter 1, a fixing box 3 is fixedly installed at one end of the silencing elbow 2, a variable frequency fan 4 is fixedly installed inside the fixing box 3, a soft joint 5 is fixedly installed at one end of the variable frequency fan 4, a reducing pipe 6 is fixedly installed at one end of the soft joint 5, a closed regulating valve 7 is fixedly installed at one end of the reducing pipe 6, a reducing experiment pipe 8 is fixedly installed at one end of the closed regulating valve 7, a high-efficiency filter 9 is fixedly installed at one end of the reducing experiment pipe 8, an experiment box 10 is fixedly installed at one end of the high-efficiency filter 9, a same-diameter experiment pipe 11 is fixedly installed at one end of the same-diameter experiment pipe 11, a static pressure box 12 is internally provided with a tested FFU13, and the tested FFU13 is in signal connection with an FFU controller 14.
In any of the above embodiments, it is preferable that the muffler elbow 2 is fixedly installed at the top end of the fixed box 3, and one end of the fixed box 3 is fixedly installed with a temperature and humidity sensor 15.
The technical scheme is adopted: the primary filter 1 guides the filtered gas into the fixed box 3 through the silencing elbow 2, and the temperature and humidity sensor 15 monitors the temperature and humidity of the environment inside the fixed box 3.
By any of the above schemes, it is preferable that the variable frequency fan 4 is fixedly installed inside the fixed box 3, and the air outlet end of the variable frequency fan 4 penetrates through the fixed box 3 and is connected with the flexible joint 5.
The technical scheme is adopted: the inside of the reducer pipe 6 is conveyed to the gas inside the fixed box 3 through the variable frequency fan 4, wherein the soft joint 5 is used for connecting and protecting the variable frequency fan 4 and the reducer pipe 6, and the connection stability of the variable frequency fan 4 and the reducer pipe is ensured.
By any of the above schemes, it is preferable that two flow equalizing plates 16 and two static pressure rings 17 are fixedly installed in the middle of the reducing experimental tube 8, the two flow equalizing plates 16 are respectively located at two sides of the two static pressure rings 17, the two static pressure rings 17 are adjacent, a differential pressure sensor 18 is arranged between the two static pressure rings 17, and a flow measuring nozzle 19 fixedly installed with the reducing experimental tube 8 is arranged at one side of the static pressure ring 17.
The technical scheme is adopted: the flow equalization is carried out on the gas in the variable-diameter experimental tube 8 through the two flow equalization plates 16, the stability of detected gas flow is guaranteed, the static pressure ring 17 is arranged between the two flow equalization plates 16, the static pressure is carried out on the gas subjected to flow equalization through the static pressure ring 17, the stability of the pressure of the detected gas is guaranteed, the pressure difference sensor 18 is convenient to detect the gas in the variable-diameter experimental tube 8, and the flow of the gas is detected through the flow measurement nozzle 19.
By any of the above schemes, it is preferable that an opening and closing door and window is provided at one end of the experiment box 10, and another temperature and humidity sensor 15 is provided at one end of the experiment box 10 close to the experiment tube 11 with the same diameter.
The technical scheme is adopted: the detected gas is contained through the experiment box 10, and after the gas is subjected to experiments in the experiment box 10, the gas is led into the experiment tube 11 with the same diameter, wherein the temperature and humidity sensor 15 is used for detecting the temperature and humidity in the experiment box 10.
In any of the above embodiments, it is preferable that the support bracket 20 is fixedly installed in the static pressure tank 12, the FFU under test 13 is fixedly installed in the support bracket 20, the FFU under test 13 is electrically connected to a power supply, and the power supply is electrically connected to a power meter.
The technical scheme is adopted: after the gas is introduced into the static pressure box 12, the tested FFU13 conveys the gas out, the tested FFU13 is powered by a power supply, and the power meter detects the power of the tested FFU 13.
From any of the above, it is preferable that a pressure probe 21 is fixedly installed at the top of one end of the static pressure tank 12, and another differential pressure sensor 18 is connected to the pressure probe 21 in a signal manner.
The technical scheme is adopted: the pressure probe 21 detects the air pressure before the FFU13 to be tested is conveyed in the static pressure box 12, the detection data are transmitted to the differential pressure sensors 18, and the air speed of the fan of the FFU to be tested can be tested through the data between the two differential pressure sensors 18.
The utility model relates to novel FFU fan wind speed testing equipment, which has the following working principle:
by using FFU fan parameter measurement equipment, data of wind speeds v and pressure differences P of different air outlets are measured, a v-P curve is made, and in practical application, the wind speed v of the air outlet can be calculated according to the measured pressure differences P according to the curve data
Experimental data are as follows:
。
compared with the prior art, the utility model has the following beneficial effects compared with the prior art:
1. according to the principle of equal value in each direction of the air pressure, the air flow pressure measurement is relatively easy, the air speed measurement can be converted into the pressure difference measurement through experimental equipment, the accurate air speed value can be obtained relatively easily, according to conservation of substances, the air inlet air quantity is equal to the air outlet air quantity of the air outlet in a closed pipeline, the corresponding air inlet air quantity and air outlet air speed have a certain corresponding relation, the air outlet air speed can be measured according to the relation between the air inlet air quantity and the air outlet air speed by measuring the air pressure at the air inlet, the FFU air inlet is separated from the clean room in the negative pressure chamber through a filter screen, the measurement cannot interfere the clean room, the problem of the existing measurement air speed can be perfectly solved, the pressure difference of the air entering and exiting the air at the air inlet end and the air outlet end is detected, meanwhile, the air flow of the air is detected in the air conveying process, and the measurement of the air speed of the fan can be accurately completed according to the pressure difference and the flow detection of the air.
Claims (7)
1. Novel FFU fan wind speed test equipment, its characterized in that: including just imitate filter (1), just, the one end fixed mounting of just imitate filter (1) has noise elimination elbow (2), the one end fixed mounting of noise elimination elbow (2) has fixed box (3), the inside fixed mounting of fixed box (3) has variable frequency fan (4), the one end fixed mounting of variable frequency fan (4) has soft joint (5), the one end fixed mounting of soft joint (5) has reducing pipe (6), the one end fixed mounting of reducing pipe (6) has airtight governing valve (7), the one end fixed mounting of airtight governing valve (7) has reducing laboratory tube (8), the one end fixed mounting of reducing laboratory tube (8) has high-efficient filter (9), the one end fixed mounting of high-efficient filter (9) has laboratory box (10), the one end fixed mounting of laboratory box (10) has same diameter laboratory tube (11), the one end fixed mounting of same diameter laboratory tube (11) has static pressure case (12), the inside of static pressure case (12) is provided with test FFU (13), FFU (13) signal connection (14) FFU.
2. The novel FFU fan wind speed testing apparatus according to claim 1, wherein: the silencing elbow (2) is fixedly arranged at the top end of the fixed box (3), and one end of the fixed box (3) is fixedly provided with a temperature and humidity sensor (15).
3. The novel FFU fan wind speed testing apparatus according to claim 2, wherein: the variable frequency fan (4) is fixedly arranged in the fixed box (3), and the air outlet end of the variable frequency fan (4) penetrates through the fixed box (3) and is connected with the soft joint (5).
4. The novel FFU fan wind speed testing apparatus according to claim 3, wherein: the flow-equalizing device is characterized in that two flow-equalizing plates (16) and two static pressure rings (17) are fixedly arranged in the middle of the reducing experimental tube (8), the two flow-equalizing plates (16) are respectively located at two sides of the two static pressure rings (17), the two static pressure rings (17) are adjacent, a differential pressure sensor (18) is arranged between the two static pressure rings (17), and a flow measuring nozzle (19) fixedly arranged with the reducing experimental tube (8) is arranged at one side of the static pressure ring (17).
5. The novel FFU fan wind speed testing apparatus according to claim 4, wherein: one end of the experiment box (10) is provided with an opening and closing door and window, and one end of the experiment box (10) close to the same-diameter experiment tube (11) is provided with another temperature and humidity sensor (15).
6. The novel FFU fan wind speed testing apparatus according to claim 5, wherein: the inside fixed mounting of static pressure case (12) has a bracket (20), test FFU (13) fixed mounting is in the inside of a bracket (20), test FFU (13) electricity is connected with the power, the power electricity is connected with the power meter.
7. The novel FFU fan wind speed testing apparatus according to claim 6, wherein: the top of one end of the static pressure box (12) is fixedly provided with a pressure probe (21), and the pressure probe (21) is connected with another differential pressure sensor in a signal way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322262814.XU CN220566275U (en) | 2023-08-23 | 2023-08-23 | Novel FFU fan wind speed test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322262814.XU CN220566275U (en) | 2023-08-23 | 2023-08-23 | Novel FFU fan wind speed test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220566275U true CN220566275U (en) | 2024-03-08 |
Family
ID=90088976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322262814.XU Active CN220566275U (en) | 2023-08-23 | 2023-08-23 | Novel FFU fan wind speed test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220566275U (en) |
-
2023
- 2023-08-23 CN CN202322262814.XU patent/CN220566275U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201607311U (en) | Air pipe air leakage testing device | |
| CN202471374U (en) | Multifunctional airtightness detection apparatus | |
| CN107014598B (en) | A kind of air valve air inlet performance testing device and test method | |
| CN104266805A (en) | Detection device and detection method for detecting air tightness of air-tight door of nuclear power plant by using constant pressure method | |
| CN112945534B (en) | Gas turbine component air flow test bed and test method | |
| CN207231786U (en) | A kind of air-valve comprehensive performance test device | |
| CN207906130U (en) | A kind of axial flow blower test system | |
| CN202092737U (en) | Standard meter type gas flow standard device capable of self-check | |
| CN111122407A (en) | Testing device and testing method for measuring filtering efficiency of air filtering material | |
| CN217358930U (en) | Air resistance detection device of gas filter | |
| CN220566275U (en) | Novel FFU fan wind speed test equipment | |
| CN114563492A (en) | Gas sensor inspection device for pipeline and test method | |
| CN208282905U (en) | A kind of gas flowmeter reality stream circulation calibrating installation | |
| CN208534819U (en) | Device for the test of fan aeroperformance | |
| CN201404773Y (en) | Membrane module testing device | |
| CN104406794A (en) | Experimental device for detecting aeroengine guider | |
| CN107830979B (en) | Visual pilot cobalt target cobalt rod flow induced vibration experimental device | |
| CN216747021U (en) | Constant-speed sampling system for directly measuring waste gas particulate matters of fixed pollution source | |
| CN201138273Y (en) | Entire carriage air tightness detecting device | |
| CN207864075U (en) | Quick differential pressure measuring device for filter | |
| CN215296588U (en) | Building door and window air tightness performance detection device | |
| CN211855513U (en) | Diaphragm type gas table calibrating installation | |
| CN113309728B (en) | Magnetic suspension blower comprehensive test bed | |
| CN206556732U (en) | A kind of portable standard law gas meter detection device | |
| CN108709703B (en) | Calibrating device for building outer glass curtain wall testing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |