CN208187625U - Anti-blocking device for pressure measurement suitable for wet flue gas pressure measurement - Google Patents

Anti-blocking device for pressure measurement suitable for wet flue gas pressure measurement Download PDF

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Publication number
CN208187625U
CN208187625U CN201820859763.5U CN201820859763U CN208187625U CN 208187625 U CN208187625 U CN 208187625U CN 201820859763 U CN201820859763 U CN 201820859763U CN 208187625 U CN208187625 U CN 208187625U
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Prior art keywords
pressure
pressure measurement
flue gas
measuring instrument
probe tube
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CN201820859763.5U
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Chinese (zh)
Inventor
何晓梅
刘晓燕
董洁
朱晓雅
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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Abstract

The utility model discloses a kind of anti-blocking device for pressure measurement suitable for wet flue gas pressure measurement, including static pressure probe tube, measurement table pipe, transmitter, condensate water collecting tank.Static pressure probe tube lower end is installed on measured flue, measurement table pipe one end is connected to the static pressure probe tube upper half, gas sampling probe extreme lower position installs condensate water collecting tank, the hori-zontal flue gas probe tube of condensate water collecting tank upstream is installed by 1%~3% descending slope, the hori-zontal flue gas probe tube in downstream is installed by 1%~3% upgrade, it allows and condenses in the water in pipeline along in slope inflow condensate water collecting tank, measure another termination transmitter of table pipe.Pass through above-mentioned mode, the anti-blocking pressure measurement method suitable for wet flue gas pressure measurement that the utility model is narrated, the water condensed in smoke sampling pipeline can be collected into condensate water collecting tank, keep the gas sampling probe from static pressure probe tube to transmitter unimpeded, guarantee the accurate measurement of flue gas pressures, the problem of attended operation is convenient, avoids table blockage.

Description

Anti-blocking device for pressure measurement suitable for wet flue gas pressure measurement
Technical field
The invention belongs to the flue pressure measurement technology fields of high water capacity flue gas, in particular to a kind of to be suitable for wet flue gas The anti-blocking device for pressure measurement of pressure measurement.
Background technique
According to the 4th part " electric power construction technical specification " DL 5190.4-2012: Thermal Meter and control device rule Model, when pressure measurement pipeline horizontal laying, should there is certain gradient, and pressure transmitter can be only installed on static pressure probe tube Position, purpose allow the Shui Shunpo condensed in pipeline to flow back to static pressure probe tube, prevent condensation water slug measurement table pipe or due to The presence of water column causes measurement error.Pressure is measured in high humility or flue with shredded tobacco for water pipes gas, than more prominent the problem of condensed water, Such as boiler flue of desulphurization system, burning high-moisture coal, but equipment component is since in-site installation position is limited, such as desulfurization Tower demister exiting flue gas pressure causes pressure survey table pipe that can not install according to code requirement, can only install pressure transmitter The position below of pressure static pressure probe tube, steam condense into water in table pipe, cause sampling blockage or pressure measurement inaccurate Really.The problem of manometer tube blocking frequently occurs, the shape for causing the measuring points such as desulphurization system pressure, differential pressure to go out to be unable to measure for a long time State.
Summary of the invention
In order to overcome the disadvantages of the above prior art, it is suitable for wet flue gas pressure the purpose of the present invention is to provide one kind to survey The anti-blocking device for pressure measurement of amount, can prevent pressure measuring instrument blockage, while solving the problems, such as measurement error, reduce maintenance, Promote maintenance convenience.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of anti-blocking device for pressure measurement suitable for wet flue gas pressure measurement, which is characterized in that tested including being connected to Measure flue 1 on static pressure probe tube 2, static pressure probe tube 2 be located at be measured flue 1 outside, for tilt tube body, lower end be connected to by The side wall of flue 1 is measured, upper end is provided with static pressure sampling pipe plug 3, the sidewall opening and pressure measuring instrument pipe of static pressure probe tube 2 One end connection, pressure measuring instrument pipe is divided into several segments, is connected to the tee tube of condensate water collecting tank 8 between adjacent segment by one The other end of 5 connections, pressure measuring instrument pipe connects pressure transmitter 6 by pressure transmitter connector 9.
The tilt angle of the static pressure probe tube 2 is 45 degree.
The pressure measuring instrument pipeline section of 8 upstream of condensate water collecting tank is installed according to 1%~3% descending slope, downstream Pressure measuring instrument pipeline section is installed according to 1%~3% upgrade.
The condensate water collecting tank 8 is mounted on the extreme lower position between pressure measuring instrument pipe adjacent segment.
The condensate water collecting tank 8 uses Clear glass bottles and jars or organic glass bottle, guarantees that sealing is not leaked.
The pressure measuring instrument pipe is divided into two sections, respectively pressure measuring instrument pipe 1 and pressure measuring instrument pipe 27, wherein The sidewall opening of static pressure probe tube 2 is connect with one end of pressure measuring instrument pipe 1, the other end connection of pressure measuring instrument pipe 1 The first port of tee tube 5, the second port of tee tube 5 connect condensate water collecting tank 8, and the third port of tee tube 5 connects pressure Power measures one end of table pipe 27, and the other end of pressure measuring instrument pipe 27 connects pressure transmitter by pressure transmitter connector 9 6。
It is connected on the inside of the static pressure probe tube 2 and measured 1 siding of flue and end is without departing from measured flue 1 Wall is provided with through-hole corresponding with static pressure probe tube 2 on measured 1 siding of flue, so that being full of cigarette in static pressure probe tube 2 Gas.
The static pressure sampling pipe plug 3 is used with static pressure probe tube 2 to be threadedly coupled, interior to match gasket seal, the gasket Piece is red copper gasket or resin gasket.
The pressure measuring instrument pipe is welded on one end of static pressure probe tube 2, and pressure measuring instrument pipe keeps 1% in the horizontal direction ~3% descending.
The tee tube 5 is connect with upstream and downstream pressure measuring instrument pipeline section, and connection guarantees sealing No leakage;The tee tube 5 With condensate water collecting tank 8 using being threadedly coupled, rubber sheet gasket is set, guarantees sealing without leakage.
Compared with prior art, the installation of site pressure table pipe of the present invention is simpler, pressure transmitter can be arranged in more Convenient position is solved the problems, such as to be caused stress measurement table blockage due to condensed water and measurement is inaccurate, while also solved Pressure transmitter must bump against the problem of on pressure samples gaging hole.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is static pressure probe tube schematic diagram.
Fig. 3 is tee tube schematic diagram.
Fig. 4 is condensate water collecting tank schematic diagram.
Specific embodiment
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of anti-blocking device for pressure measurement suitable for wet flue gas pressure measurement, comprising: static pressure probe tube 2, pressure measuring instrument pipe, condensate water collecting tank 8 and pressure transmitter 6 four are most of.
Wherein, with reference to Fig. 2, it is 45 degree of inclination tube body, lower end and quilt that static pressure probe tube 2, which is located at, which to be measured outside flue 1, Measurement 1 siding of flue on the inside of be connected and end without departing from measured flue 1 inner wall, while guarantee be connected to bore ends answer it is hairless Thorn;Upper end, which is provided with, is threadedly coupled mouth 21, is measured on 1 siding of flue and is provided with through-hole corresponding with static pressure probe tube 2, so that Flue gas is full of in static pressure probe tube 2.Static pressure sampling pipe plug 3 is connected through a screw thread mouth 21 with static pressure probe tube 2 and connect, interior with close Gasket can use red copper gasket or resin gasket.
Static pressure probe tube 2 is mounted on measured flue 1 according to 45 degree of descendings, when wet flue gas enters the cooling of static pressure probe tube The condensed water generated afterwards can flow back in flue naturally;When dust cause static pressure probe tube 2 block, static pressure probe tube can be opened Plug 3 is manually dredged, but such case generally seldom occurs.
One end of pressure measuring instrument pipe and the opening on 2 side wall of static pressure probe tube are welded, and pressure measuring instrument pipe is according to scene It needs to be divided into two sections of sections or multistage (pipeline is short and optional two sections simple, and pipeline length can according to circumstances increase number of segment), is divided into two sections When, with reference to Fig. 1, respectively pressure measuring instrument pipe 1 and pressure measuring instrument pipe 27, wherein the sidewall opening of static pressure probe tube 2 It is connect with one end of pressure measuring instrument pipe 1, the first port of the other end connection tee tube 5 of pressure measuring instrument pipe 1, threeway The second port of pipe 5 connects condensate water collecting tank 8, one end of the third port connection pressure measuring instrument pipe 27 of tee tube 5, pressure The other end that power measures table pipe 27 connects pressure transmitter 6 by pressure transmitter connector 9.
That is, the tee tube 5 for being connected to condensate water collecting tank 8 by one between adjacent tubular segments connects, tee tube 5 and up and down The connection of pressure measuring instrument pipeline section is swum, connection guarantees sealing No leakage;With reference to Fig. 3, tee tube 5 and condensate water collecting tank 8 use spiral shell Rubber sheet gasket is arranged in line connection, seal nipple 51, guarantees sealing without leakage.Along water (flow) direction, 8 upstream of condensate water collecting tank Pipeline section (pressure measuring instrument pipe 1 as shown in figure 1) according in the horizontal direction 1%~3% descending slope install, the pipeline section in downstream (pressure measuring instrument pipe 27 as shown in figure 1) is installed according in the horizontal direction 1%~3% upgrade, and condensate water collecting tank 8 is installed Extreme lower position between pressure measuring instrument pipe adjacent segment.So that when wet flue gas enters upstream pipeline section (pressure as shown in figure 1 Measure table pipe 1 4), condensed water after cooling can flow to condensate water collecting tank 8 along slope;When a small amount of wet flue gas downstream pipeline section (such as 7), condensed water after cooling can also flow in condensate water collecting tank 8 pressure measuring instrument pipe 2 along slope in Fig. 1, make pressure measurement The unimpeded not ponding of table pipe does not block, and ensure that the accurate measurement of flue gas pressures.
With reference to Fig. 4, condensate water collecting tank 8 uses Clear glass bottles and jars or organic glass bottle, guarantees that sealing is not leaked, bottleneck is spiral shell Warning line 81, after ponding 10 to certain altitude, the emptying when system deactivates is arranged in line connector 82, body.
Pressure transmitter 6 connects the other end of pressure measuring instrument pipe by pressure transmitter connector 9, and connection guarantees sealing not Leakage.Pressure transmitter 6, which is installed on, facilitates line arrangement, position convenient for safeguarding.
Its realization is anti-blocking, accurately specific measurement process/step is:
1, according to the system configuration and installation pressure-measuring system.
2, it opens static pressure and samples pipe plug, check dust debris in cleaning static pressure probe tube.
3, condensate water collecting tank is removed, is restored after emptying internal ponding.
4, start tested test system, inspection ensures static pressure sampling pipe plug, tee pipe coupling and pressure transmitter connector not There are leakages.
5, flue gas pressures measure.
6, water level in condensate water collecting tank is observed during flue gas pressures measurement, water level receives condensed water more than after alarming line Collection tank is removed, and is restored after emptying internal ponding, can proceed with flue gas pressures measurement.

Claims (10)

1. a kind of anti-blocking device for pressure measurement suitable for wet flue gas pressure measurement, which is characterized in that measured including being connected to Static pressure probe tube (2) on flue (1), static pressure probe tube (2), which is located at, is measured flue (1) outside, and to tilt tube body, lower end connects Connect be measured flue (1) side wall, upper end be provided with static pressure sampling pipe plug (3), the sidewall opening of static pressure probe tube (2) with One end of pressure measuring instrument pipe connects, and pressure measuring instrument pipe is divided into several segments, is connected to condensed water by one between adjacent segment and receives Collect tee tube (5) connection of tank (8), the other end of pressure measuring instrument pipe connects pressure inverting by pressure transmitter connector (9) Device (6).
2. being suitable for the anti-blocking device for pressure measurement of wet flue gas pressure measurement according to claim 1, which is characterized in that described The tilt angle of static pressure probe tube (2) is 45 degree.
3. being suitable for the anti-blocking device for pressure measurement of wet flue gas pressure measurement according to claim 1, which is characterized in that described The pressure measuring instrument pipe horizontal segment of condensate water collecting tank (8) upstream is installed according to 1%~3% descending slope, and the pressure in downstream is surveyed Scale pipe horizontal segment is installed according to 1%~3% upgrade.
4. being suitable for the anti-blocking device for pressure measurement of wet flue gas pressure measurement according to claim 1, which is characterized in that described Condensate water collecting tank (8) is mounted on the extreme lower position between pressure measuring instrument pipe adjacent segment.
5. being suitable for the anti-blocking device for pressure measurement of wet flue gas pressure measurement according to claim 1, which is characterized in that described Condensate water collecting tank (8) uses Clear glass bottles and jars or organic glass bottle, guarantees that sealing is not leaked.
6. being suitable for the anti-blocking device for pressure measurement of wet flue gas pressure measurement according to claim 1, which is characterized in that described Pressure measuring instrument pipe is divided into two sections, respectively pressure measuring instrument pipe one (4) and pressure measuring instrument pipe two (7), wherein static pressure sampling The sidewall opening of pipe (2) is connect with one end of pressure measuring instrument pipe one (4), the other end connection three of pressure measuring instrument pipe one (4) The second port of the first port of siphunculus (5), tee tube (5) connects condensate water collecting tank (8), the third port of tee tube (5) One end of pressure measuring instrument pipe two (7) is connected, the other end of pressure measuring instrument pipe two (7) is connected by pressure transmitter connector (9) Connect pressure transmitter (6).
7. being suitable for the anti-blocking device for pressure measurement of wet flue gas pressure measurement according to claim 1, which is characterized in that described It is connected on the inside of static pressure probe tube (2) and measured flue (1) siding and inner wall of the end without departing from measured flue (1), institute It states and is provided with through-hole corresponding with static pressure probe tube (2) on measured flue (1) siding, so that being full of in static pressure probe tube (2) Flue gas.
8. being suitable for the anti-blocking device for pressure measurement of wet flue gas pressure measurement according to claim 1, which is characterized in that described Static pressure samples pipe plug (3) with static pressure probe tube (2) using being threadedly coupled, and interior to match gasket seal, the gasket seal is red copper Gasket or resin gasket.
9. being suitable for the anti-blocking device for pressure measurement of wet flue gas pressure measurement according to claim 1, which is characterized in that described Pressure measuring instrument pipe is welded on one end of static pressure probe tube (2), and pressure measuring instrument pipe is kept under 1%~3% in the horizontal direction Slope.
10. being suitable for the anti-blocking device for pressure measurement of wet flue gas pressure measurement according to claim 1, which is characterized in that institute It states tee tube (5) to connect with upstream and downstream pressure measuring instrument pipeline section, connection guarantees sealing No leakage;The tee tube (5) and condensation Rubber sheet gasket is arranged using being threadedly coupled in water collecting tank (8), guarantees sealing without leakage.
CN201820859763.5U 2018-06-04 2018-06-04 Anti-blocking device for pressure measurement suitable for wet flue gas pressure measurement Active CN208187625U (en)

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Application Number Priority Date Filing Date Title
CN201820859763.5U CN208187625U (en) 2018-06-04 2018-06-04 Anti-blocking device for pressure measurement suitable for wet flue gas pressure measurement

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Application Number Priority Date Filing Date Title
CN201820859763.5U CN208187625U (en) 2018-06-04 2018-06-04 Anti-blocking device for pressure measurement suitable for wet flue gas pressure measurement

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110108416A (en) * 2019-05-23 2019-08-09 惠州和创智造科技有限公司 A kind of smog leakage detection apparatus suitable for big flow gas
CN111537137A (en) * 2020-05-19 2020-08-14 天津中材工程研究中心有限公司 Static pressure measurement method for dust-containing gas pipeline
CN112051112A (en) * 2020-09-29 2020-12-08 西安西热节能技术有限公司 Sampling device and sampling method for flue gas moisture at outlet of desulfurizing tower

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110108416A (en) * 2019-05-23 2019-08-09 惠州和创智造科技有限公司 A kind of smog leakage detection apparatus suitable for big flow gas
CN110108416B (en) * 2019-05-23 2020-10-23 深圳市和创智造有限公司 Smoke leakage detection device suitable for large-flow gas
CN111537137A (en) * 2020-05-19 2020-08-14 天津中材工程研究中心有限公司 Static pressure measurement method for dust-containing gas pipeline
CN111537137B (en) * 2020-05-19 2021-09-14 天津中材工程研究中心有限公司 Static pressure measurement method for dust-containing gas pipeline
CN112051112A (en) * 2020-09-29 2020-12-08 西安西热节能技术有限公司 Sampling device and sampling method for flue gas moisture at outlet of desulfurizing tower

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