CN203810370U - Static-pressure measuring hole anti-plugging device for power plant boiler smoke system - Google Patents

Static-pressure measuring hole anti-plugging device for power plant boiler smoke system Download PDF

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Publication number
CN203810370U
CN203810370U CN201420225526.5U CN201420225526U CN203810370U CN 203810370 U CN203810370 U CN 203810370U CN 201420225526 U CN201420225526 U CN 201420225526U CN 203810370 U CN203810370 U CN 203810370U
Authority
CN
China
Prior art keywords
static
pressure measuring
measuring hole
plugging
power plant
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.)
Expired - Fee Related
Application number
CN201420225526.5U
Other languages
Chinese (zh)
Inventor
闫慧博
张勇胜
张万德
刘文献
贾永会
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
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 State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd, Hebei Electric Power Construction Adjustment Test Institute filed Critical State Grid Corp of China SGCC
Priority to CN201420225526.5U priority Critical patent/CN203810370U/en
Application granted granted Critical
Publication of CN203810370U publication Critical patent/CN203810370U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a static-pressure measuring hole anti-plugging device for a power plant boiler smoke system. The device comprises a smoke channel pipe wall of a power plant boiler smoke channel, a plugging needle base fixedly arranged on the smoke channel pipe, a static-pressure measuring hole formed in the middle of the smoke channel pipe wall and plugging needle base and a plugging needle arranged in the static-pressure measuring hole in a penetrating manner. The diameter of the middle-upper portion of the static-pressure measuring hole is larger than that of the lower portion of the static-pressure measuring hole. A plug is fixedly arranged on the upper portion of the plugging needle and is connected to the inner side of the end of the static-pressure measuring hole in a screwed manner, the plugging needle is arranged in the static-pressure measuring hole so that the static-pressure measuring hole can be prevented from being plugged by dust in the flow in the pipeline, and the plug is connected to the static-pressure measuring hole in a screwed manner so that the plugging needle can be taken out from the static-pressure measuring hole conveniently and the static pressure in the pipeline can be measured conveniently. The device is simple in structure and convenient to use, and on-site operating efficiency is improved.

Description

A kind of static opening anti-block apparatus for station boiler air and gas system
Technical field
The utility model relates to a kind of static opening anti-block apparatus for station boiler air and gas system.
Background technology
The structure of tube wall pressure gaging hole while having specified measuring channel cross section static pressure in DL/T 469-2004 " test of For Air Fans of Utility Boilers field performance ", specific requirement is: inner surface of pipeline and bore edges should be smooth without burr, baroport is perpendicular to cigarette, air channel tube wall, and baroport diameter is got 2~4mm.When working medium is cold air, baroport connecting pipe length is got 50mm; When working medium is hot-air or flue gas, connecting pipe length is got 200mm.Because baroport diameter is very little, and in actual production owing to containing a large amount of dust in chimneying, there is blocked phenomenon in most of tube wall pressure gaging holes after equipment operation a period of time, has a strong impact on work on the spot.
Utility model content
Problem to be solved in the utility model is to provide the blocking-proof static pressure gaging hole plug of static opening in a kind of station boiler air and gas system that prevents static opening obstruction.
The utility model adopts following technical scheme:
The utility model comprise station boiler flue flue tube wall, be fixedly installed on stifled pin pedestal on flue tube wall, be arranged on the static opening at flue tube wall and stifled pin pedestal middle part and run through the stifled pin being arranged in static opening, aperture, described static opening middle and upper part is greater than the aperture of bottom, described stifled pin top is fixedly installed plug, and described plug is connected with static opening end inside thread.
The utility model good effect is as follows:
The utility model arranges stifled pin in static opening, can prevent that static opening from not stopped up by the dust in chimneying, and plug is threaded with static opening, can conveniently in static opening, take out stifled pin, and easily the static pressure in pipeline be measured.Stifled pin pedestal is convenient to adopt resilient emulsion tube will block up pin pedestal to be connected with static pressure measurement instrument on the one hand; The length that can increase on the other hand static opening after the stifled pin pedestal of installation, meets standard-required.Aperture, static opening middle and upper part is greater than the impact that can play the fluctuation of buffering pipe internal pressure in aperture, bottom, and the fluctuation of static pressure while slackening static pressure measurement, is more conducive to obtain static pressure measurement value accurately.The utility model is simple in structure, easy to use, has improved on-the-spot operating efficiency.
Brief description of the drawings
Accompanying drawing 1 is the utility model structural representation.
In the accompanying drawings: 1 flue tube wall, 2 stifled pin pedestals, 3 static openings, 4 stifled pins, 5 plugs.
Detailed description of the invention
As shown in Figure 1, the utility model comprise station boiler flue flue tube wall 1, be fixedly installed on stifled pin pedestal 2 on flue tube wall 1, be arranged on the static opening 3 at flue tube wall 1 and stifled pin pedestal 2 middle parts and run through the stifled pin 4 being arranged in static opening 3, described static opening 3 apertures, middle and upper part are greater than the aperture of bottom, described stifled pin 4 tops are fixedly installed plug 5, and described plug 5 is connected with static opening 3 end inside threads.
When work, will take off with the plug 5 of stifled pin 4, with elastic emulsion tube connection pressure measurement instrument and stifled pin pedestal 2, can carry out the static pressure measurement in flue.
The utility model arranges stifled pin in static opening, can prevent that static opening 3 from not stopped up by the dust in chimneying, and plug 5 is threaded with static opening 3, can conveniently in static opening, take out stifled pin 4, and easily the static pressure in pipeline be measured; Stifled pin pedestal 2 is convenient to adopt resilient emulsion tube will block up pin pedestal 2 to be connected with static pressure measurement instrument on the one hand; On the other hand owing to requiring the height of static opening on flue tube wall to be greater than the diameter of the static opening of twice in DL/T 469-2004 " test of For Air Fans of Utility Boilers field performance " standard, and in actual applications because flue tube wall is thinner, can not reach standard, the height that can increase static opening after the stifled pin pedestal 2 of employing, the height that meets static opening is greater than the requirement of the static opening diameter of twice; Aperture, static opening middle and upper part is greater than aperture, bottom can play the impact that buffering pipe internal pressure fluctuates, and the fluctuation of static pressure while slackening static pressure measurement, is more conducive to obtain static pressure measurement value accurately.The utility model is simple in structure, easy to use, has improved on-the-spot operating efficiency.

Claims (1)

1. the static opening anti-block apparatus for station boiler air and gas system, it is characterized in that the flue tube wall (1) that it comprises station boiler flue, be fixedly installed on the stifled pin pedestal (2) on flue tube wall (1), be arranged on the static opening (3) at flue tube wall (1) and stifled pin pedestal (2) middle part and run through the stifled pin (4) being arranged in static opening (3), described static opening (3) aperture, middle and upper part is greater than the aperture of bottom, described stifled pin (4) top is fixedly installed plug (5), described plug (5) is connected with static opening (3) end inside thread.
CN201420225526.5U 2014-05-05 2014-05-05 Static-pressure measuring hole anti-plugging device for power plant boiler smoke system Expired - Fee Related CN203810370U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420225526.5U CN203810370U (en) 2014-05-05 2014-05-05 Static-pressure measuring hole anti-plugging device for power plant boiler smoke system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420225526.5U CN203810370U (en) 2014-05-05 2014-05-05 Static-pressure measuring hole anti-plugging device for power plant boiler smoke system

Publications (1)

Publication Number Publication Date
CN203810370U true CN203810370U (en) 2014-09-03

Family

ID=51449114

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420225526.5U Expired - Fee Related CN203810370U (en) 2014-05-05 2014-05-05 Static-pressure measuring hole anti-plugging device for power plant boiler smoke system

Country Status (1)

Country Link
CN (1) CN203810370U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109696318A (en) * 2018-03-16 2019-04-30 中电华创(苏州)电力技术研究有限公司 Gaging hole suitable for multinomial boiler and subsidiary engine performance test is fixed temporarily sealing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109696318A (en) * 2018-03-16 2019-04-30 中电华创(苏州)电力技术研究有限公司 Gaging hole suitable for multinomial boiler and subsidiary engine performance test is fixed temporarily sealing device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140903

Termination date: 20160505