CN103308713A - Novel air speed metering system utilizing tunnel type sterilizing oven - Google Patents
Novel air speed metering system utilizing tunnel type sterilizing oven Download PDFInfo
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- CN103308713A CN103308713A CN2013102203665A CN201310220366A CN103308713A CN 103308713 A CN103308713 A CN 103308713A CN 2013102203665 A CN2013102203665 A CN 2013102203665A CN 201310220366 A CN201310220366 A CN 201310220366A CN 103308713 A CN103308713 A CN 103308713A
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- pitot tube
- air channel
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- sterilizing oven
- tunnel
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Abstract
The invention discloses a novel air speed metering system utilizing a tunnel type sterilizing oven. The novel air speed metering system is characterized by comprising a Pitot tube, wherein one end of the Pitot tube is disposed in an air duct while the other end of the Pitot tube is connected with a pressure difference transmitter through an air tube. The novel air speed metering system has the advantage of capability of metering air speed of the inside of the sterilizing oven accurately.
Description
Technical field
The present invention relates to a kind of new-type wind velocity measurement system that is applied to tunnel-type sterilizing oven, can measure the wind speed of tunnel oven box house by this system, belong to tunnel oven wind velocity measurement system field.
Background technology
Wind speed is an important indicator of tunnel oven, and wind speed does not meet the demands, and does not just reach hundred grades of laminar flows.It is that it can't be by major reason of checking that tunnel oven inside does not have the protection of hundred grades of laminar flows, and in the equipment that does not have hundred grades of laminar flows protections, the part container may be by Re-pollution after through sterilization, thereby does not satisfy the sterilization requirement.For this reason, the wind speed of tunnel oven has been subject to common concern.
At present, measuring wind speed mode commonly used is to utilize vane type or hot-wire array sensor on-position measure.This mode can only be measured certain some wind speed, and this mode can accurately not reflect the wind conditions of whole box house when the casing area is larger.Simultaneously, measuring wind speed is difficult under the high temperature, and cost is higher.
Summary of the invention
The technical problem to be solved in the present invention is: utilize vane type or hot-wire array sensor on-position measure can only measure certain some wind speed, when the casing area is larger, can accurately not reflect the wind conditions of whole box house.Simultaneously, measuring wind speed is difficult under the high temperature, and cost is higher.
In order to solve the problems of the technologies described above, technical scheme of the present invention has provided a kind of new-type wind velocity measurement system that is applied to tunnel-type sterilizing oven, it is characterized in that, comprises pitot tube, one end of pitot tube is located in the air channel, and the other end of pitot tube is connected with pressure difference transmitter by tracheae.
Preferably, two of the described pitot tube other end ports are connected with two ports of pressure difference transmitter by two tracheaes respectively.
Preferably, the port of pitot tube one end in the described air channel is over against the wind passage mouth in air channel.
Preferably, utilize described pressure difference transmitter to detect the dynamic pressure of pitot tube, calculate wind speed in the air channel according to Bernoulli equation, extrapolate again the wind speed in the lower square box of air channel.
The present invention can detect the wind speed of sterilization box house accurately, it utilizes pressure difference transmitter to detect the pitot tube dynamic pressure, calculate wind speed in the air channel according to Bernoulli equation, extrapolate again the wind speed in the casing, guarantee hundred grades of laminar flows of oven interior, so that tunnel oven meets the GMP requirement more, and can be used for measuring the inner wind speed of high temperature lower box, cost is lower.
Description of drawings
Fig. 1 is a kind of use schematic diagram that is applied to the new-type wind velocity measurement system of tunnel-type sterilizing oven.
Embodiment
For the present invention is become apparent, hereby with preferred embodiment, and cooperate accompanying drawing to be described in detail below.
The present invention is a kind of new-type wind velocity measurement system that is applied to tunnel-type sterilizing oven, as shown in Figure 1, is a kind of use schematic diagram that is applied to the new-type wind velocity measurement system of tunnel-type sterilizing oven.Utilize flange to be connected between blower fan 4 air outlets and the air channel 5, be welded to connect between the interlude of pitot tube 3 and the air channel 5, so that an end of pitot tube 3 is located in the air channel 5, the port of pitot tube 3 one ends in the air channel 5 is 5 wind passage mouth over against the air channel, and namely the top of pitot tube 3 must be kept towards the windward side parallel.Two ports of the other end of pitot tube 3 are connected with two ports of pressure difference transmitter 1 by two tracheaes 2 respectively.Utilize fan housing 6 to be connected between high efficiency particulate air filter 7 and the air channel 5, use high efficiency particulate air filter 7 to guarantee that the air in the casings 8 are clean laminar-flow airs.
During blower fan work, pressure difference transmitter 1 can detect the dynamic pressure of pitot tube 3.
According to Bernoulli's equation:
(Cm: differential pressure probe coefficient; Cc: the measuring system correction factor) can calculate wind speed in the air channel 5.
According to formula:
(V1: wind speed in the air channel; V2: wind speed in the casing; S1: the air channel is perpendicular to the sectional area of wind direction; S2: casing is perpendicular to the sectional area of wind direction) can calculate the wind speed in 5 lower square box 8 of air channel.
Claims (4)
1. new-type wind velocity measurement system that is applied to tunnel-type sterilizing oven, it is characterized in that, comprise pitot tube (3), an end of pitot tube (3) is located in the air channel (5), and the other end of pitot tube (3) is connected with pressure difference transmitter (1) by tracheae (2).
2. a kind of new-type wind velocity measurement system that is applied to tunnel-type sterilizing oven as claimed in claim 1, it is characterized in that, two ports of described pitot tube (3) other end are connected with two ports of pressure difference transmitter (1) by two tracheaes (2) respectively.
3. a kind of new-type wind velocity measurement system that is applied to tunnel-type sterilizing oven as claimed in claim 1 is characterized in that, the port of pitot tube (3) one ends in described air channel (5) is the wind passage mouth of (5) over against the air channel.
4. a kind of new-type wind velocity measurement system that is applied to tunnel-type sterilizing oven as claimed in claim 1, it is characterized in that, utilize described pressure difference transmitter (1) to detect the dynamic pressure of pitot tube (3), calculate the interior wind speed in air channel (5) according to Bernoulli equation, extrapolate again the wind speed in air channel (5) lower square box (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102203665A CN103308713A (en) | 2013-06-04 | 2013-06-04 | Novel air speed metering system utilizing tunnel type sterilizing oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102203665A CN103308713A (en) | 2013-06-04 | 2013-06-04 | Novel air speed metering system utilizing tunnel type sterilizing oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103308713A true CN103308713A (en) | 2013-09-18 |
Family
ID=49134155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102203665A Pending CN103308713A (en) | 2013-06-04 | 2013-06-04 | Novel air speed metering system utilizing tunnel type sterilizing oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103308713A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260481A (en) * | 2000-01-19 | 2000-07-19 | 山西省气象局 | Method and device for automatic detection and control of wind tunnel speed |
| US20040020304A1 (en) * | 2002-08-05 | 2004-02-05 | Bruce Roesler | Differential static pressure measuring device |
| CN201945336U (en) * | 2011-03-03 | 2011-08-24 | 铁岭市鑫光明科技有限公司 | Anti-clogging probe type pitot tube flowmeter |
| CN201955111U (en) * | 2010-12-17 | 2011-08-31 | 无锡华润上华半导体有限公司 | Pitot tube flow meter |
| CN203350273U (en) * | 2013-06-04 | 2013-12-18 | 上海东富龙科技股份有限公司 | Novel wind speed measurement system for tunnel-type disinfection oven |
-
2013
- 2013-06-04 CN CN2013102203665A patent/CN103308713A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260481A (en) * | 2000-01-19 | 2000-07-19 | 山西省气象局 | Method and device for automatic detection and control of wind tunnel speed |
| US20040020304A1 (en) * | 2002-08-05 | 2004-02-05 | Bruce Roesler | Differential static pressure measuring device |
| CN201955111U (en) * | 2010-12-17 | 2011-08-31 | 无锡华润上华半导体有限公司 | Pitot tube flow meter |
| CN201945336U (en) * | 2011-03-03 | 2011-08-24 | 铁岭市鑫光明科技有限公司 | Anti-clogging probe type pitot tube flowmeter |
| CN203350273U (en) * | 2013-06-04 | 2013-12-18 | 上海东富龙科技股份有限公司 | Novel wind speed measurement system for tunnel-type disinfection oven |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130918 |