CN201464488U - Honeycomb air duct flow-equalizing speed testing device - Google Patents

Honeycomb air duct flow-equalizing speed testing device Download PDF

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Publication number
CN201464488U
CN201464488U CN2009201235600U CN200920123560U CN201464488U CN 201464488 U CN201464488 U CN 201464488U CN 2009201235600 U CN2009201235600 U CN 2009201235600U CN 200920123560 U CN200920123560 U CN 200920123560U CN 201464488 U CN201464488 U CN 201464488U
Authority
CN
China
Prior art keywords
speed testing
speed
air duct
flow
air channel
Prior art date
Application number
CN2009201235600U
Other languages
Chinese (zh)
Inventor
张明
李剑
李凤瑞
Original Assignee
杭州意能节能技术有限公司
浙江省电力试验研究院
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 杭州意能节能技术有限公司, 浙江省电力试验研究院 filed Critical 杭州意能节能技术有限公司
Priority to CN2009201235600U priority Critical patent/CN201464488U/en
Application granted granted Critical
Publication of CN201464488U publication Critical patent/CN201464488U/en

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Abstract

The utility model relates to a honeycomb air duct flow-equalizing speed testing device, which comprises a speed testing channel and a speed testing box between. A speed testing tube is arranged between the speed testing channel and the speed testing box; the speed testing channel is divided into a rectifying section and a speed testing section, wherein the rectifying section is provided with a rectifying partition board which separates the rectifying section into a honeycomb shape so as to separates a large air duct into a plurality of small air ducts; and the speed testing tube is provided with speed testing holes at the outlet of each small air duct. Compared with the prior art, the honeycomb air duct flow-equalizing speed testing device has the advantages that: through the adoption of the device, the rectifying partition board separates the rectifying section into the honeycomb shape so as to separate the large air duct into the plurality of small air ducts, so the equivalent diameter of a measured section is greatly reduced and the stability and uniformity of a flow field can be realized in a short distance; and a mean flow rate in a pipeline is measured through the speed testing device, so the device is effective means for realizing the accurate measurement of a complex space and an non-uniform flow field.

Description

A kind of honeycomb type air channel current-sharing speed measuring device
Technical field
The utility model belongs to the measurement mechanism of pipeline transportation rate of flow of fluid, is specifically to belong to a kind of measurement mechanism that is used for station boiler wind trunk inner fluid speed.
Background technology
During engineering is used at present,, when measuring, often can't satisfy convection cell the required measuring point front and back flow development length of accurate measurement owing to be subjected to the restriction of site space.As: station boiler first and second air measuring, to exist measurement inaccurate always, problems such as poor reliability, the reason that causes this problem mainly is that the measure field condition at complex space, inhomogeneous flow field can't satisfy the current-sharing straight length requirement that measurement mechanism requires, therefore cause and measure cross section velocity field instability, the temperature field instability causes flow to be difficult to accurate measurement.Often adopt to strengthen the method for operation of air quantity for guaranteeing safe operation this moment, both increased the power consumption of blower fan, is unfavorable for controlling pollutant emission again, causes air quantity can't stablize automatically when serious and put into operation, the operation of stabilizing the economy of threat unit safety.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of honeycomb type air channel current-sharing speed measuring device is provided, and it is stable and even that this speed measuring device can make the fluid flow fields in the wind trunk just realize in short distance.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of honeycomb type air channel current-sharing speed measuring device, comprise the passage that tests the speed, case tests the speed, passage and test the speed and be provided with pitot tube between the case tests the speed, the described passage that tests the speed is divided into rectification section, the section of testing the speed, it is characterized in that: described rectification section is provided with Partition for realigning water flow, Partition for realigning water flow is separated rectification section and is honeycomb type, makes wind trunk be separated into a plurality of little air channels, and described pitot tube is provided with the hole of testing the speed in the exit in each little air channel.
The total length of described speed measuring device is 6~8 times of little air channel equivalent diameter.
Described rectification section is divided into inlet shunting section and outlet Drainage Section.
The length of described inlet shunting section is 4~5 times of little air channel equivalent diameter.
The utility model compared with prior art has following beneficial effect: after adopting this device, Partition for realigning water flow is separated rectification section and is honeycomb type, make wind trunk be separated into a plurality of little air channels, shortened the equivalent diameter of measuring the cross section greatly, the flow field has just been realized stable and even in short distance, recording mean flow rate in the pipeline by speed measuring device then, is a kind of accurately effective means of measurement of complex space, inhomogeneous flow field that solves.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cut-open view of Fig. 1.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of honeycomb type air channel current-sharing speed measuring device, comprise the passage 1 that tests the speed, case 2 tests the speed, passage 1 and test the speed and be provided with pitot tube 3 between the case 2 tests the speed, pitot tube 3 is provided with a plurality of holes 4 of testing the speed, the passage 1 that tests the speed is divided into rectification section 5, the section of testing the speed 6, rectification section 5 is divided into inlet shunting section 51 and outlet Drainage Section 52. inlet shunting sections 51 and outlet Drainage Section 52 and is equipped with Partition for realigning water flow 7 in the present embodiment, to enter the mouth shunting section 51 and outlet Drainage Section 52 of Partition for realigning water flow 7 all separated and is honeycomb type, make wind trunk be separated into a plurality of little air channels, pitot tube 3 is provided with hole 4. speed measuring devices that test the speed in the exit in each little air channel total length is 6~8 times of little air channel equivalent diameter, the length of inlet shunting section 51 is 4~5 times of little air channel equivalent diameter, thereby it is stable and even that the flow field has just been realized in short distance.
The utility model is divided into several small bores with whole measurement cross section, shortened the equivalent diameter of measuring the cross section greatly, make existing space can satisfy the requirement of the required front and back flow development length of measurement mechanism, guaranteed the accuracy of measuring, the flow field uniformity in the small bore measuring section is better than the bulk flow field uniformity in whole cross section greatly simultaneously; It is a kind of accurately effective means of measurement of complex space, inhomogeneous flow field that solves.

Claims (4)

1. honeycomb type air channel current-sharing speed measuring device, comprise the passage that tests the speed (1), the case that tests the speed (2), test the speed and be provided with pitot tube (3) between passage (1) and the case that tests the speed (2), the described passage that tests the speed (1) is divided into rectification section (5), the section of testing the speed (6), it is characterized in that: described rectification section (5) is provided with Partition for realigning water flow (7), Partition for realigning water flow (7) is separated rectification section (5) and is honeycomb type, makes wind trunk be separated into a plurality of little air channels, and described pitot tube (3) is provided with the hole of testing the speed in the exit in each little air channel.
2. a kind of honeycomb type air channel current-sharing speed measuring device as claimed in claim 1 is characterized in that: the total length of described speed measuring device is 6~8 times of little air channel equivalent diameter.
3. a kind of honeycomb type air channel current-sharing speed measuring device as claimed in claim 1 or 2 is characterized in that: described rectification section (5) is divided into inlet shunting section (51) and outlet Drainage Section (52).
4. a kind of honeycomb type air channel current-sharing speed measuring device as claimed in claim 3 is characterized in that: the length of described inlet shunting section (51) is 4~5 times of little air channel equivalent diameter.
CN2009201235600U 2009-07-02 2009-07-02 Honeycomb air duct flow-equalizing speed testing device CN201464488U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201235600U CN201464488U (en) 2009-07-02 2009-07-02 Honeycomb air duct flow-equalizing speed testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201235600U CN201464488U (en) 2009-07-02 2009-07-02 Honeycomb air duct flow-equalizing speed testing device

Publications (1)

Publication Number Publication Date
CN201464488U true CN201464488U (en) 2010-05-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201235600U CN201464488U (en) 2009-07-02 2009-07-02 Honeycomb air duct flow-equalizing speed testing device

Country Status (1)

Country Link
CN (1) CN201464488U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865193A (en) * 2010-07-19 2010-10-20 中国航空工业集团公司西安飞机设计研究所 Easy rectification method of irregular air duct flow field
CN103126044A (en) * 2013-03-04 2013-06-05 贵州省烟草公司黔南州公司 Method for measuring air distribution performance of bulk tobacco leaf curing barns
CN105299782A (en) * 2015-10-13 2016-02-03 无锡普爱德环保科技有限公司 Rotary dehumidification device
CN105334345A (en) * 2015-11-10 2016-02-17 中国安全生产科学研究院 Subway tunnel section wind speed measurement device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865193A (en) * 2010-07-19 2010-10-20 中国航空工业集团公司西安飞机设计研究所 Easy rectification method of irregular air duct flow field
CN103126044A (en) * 2013-03-04 2013-06-05 贵州省烟草公司黔南州公司 Method for measuring air distribution performance of bulk tobacco leaf curing barns
CN103126044B (en) * 2013-03-04 2015-09-16 贵州省烟草公司黔南州公司 A kind of method measuring tobacco-leaf bulk curing barn and divide wind performance
CN105299782A (en) * 2015-10-13 2016-02-03 无锡普爱德环保科技有限公司 Rotary dehumidification device
CN105334345A (en) * 2015-11-10 2016-02-17 中国安全生产科学研究院 Subway tunnel section wind speed measurement device
CN105334345B (en) * 2015-11-10 2018-06-22 中国安全生产科学研究院 subway tunnel section wind speed measuring device

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Patentee after: Hangzhou Yineng Energy-Saving Technology Co., Ltd.

Patentee after: Zhejiang Electric Power Test And Research Insititute

Address before: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane

Patentee before: Hangzhou Yineng Energy-Saving Technology Co., Ltd.

Patentee before: Zhejiang Electric Power Test And Research Insititute

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Address after: 100031 West Chang'an Avenue, Beijing, No. 86

Patentee after: State Grid Corporation of China

Patentee after: Yineng Electric Technology Co., Ltd., Hangzhou

Patentee after: Zhejiang Electric Power Test And Research Insititute

Address before: 100031 West Chang'an Avenue, Beijing, No. 86

Patentee before: State Grid Corporation of China

Patentee before: Hangzhou Yineng Energy-Saving Technology Co., Ltd.

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Granted publication date: 20100512

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