CN204924311U - Wingly prevent stifled multiple spot flowmeter - Google Patents

Wingly prevent stifled multiple spot flowmeter Download PDF

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Publication number
CN204924311U
CN204924311U CN201520551946.7U CN201520551946U CN204924311U CN 204924311 U CN204924311 U CN 204924311U CN 201520551946 U CN201520551946 U CN 201520551946U CN 204924311 U CN204924311 U CN 204924311U
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China
Prior art keywords
malleation
negative pressure
sample point
blocking
sampling
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Active
Application number
CN201520551946.7U
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Chinese (zh)
Inventor
吴建峰
赵建东
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SHENZHOU OBSERVATION AND CONTROL EQUIPMENT CO Ltd
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SHENZHOU OBSERVATION AND CONTROL EQUIPMENT CO Ltd
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Priority to CN201520551946.7U priority Critical patent/CN204924311U/en
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Abstract

The utility model provides a wingly prevent stifled multiple spot flowmeter, the installation structure comprises a sleeve, the connecting plate, be provided with malleation sample point assembly and negative pressure sample point assembly between sleeve pipe and the connecting plate, the both sides of malleation sample point assembly communicate the one end that has the malleation choke respectively, the other end of every side malleation choke all communicates to officially enroll presses the pipe, officially enroll and press the both ends of managing to have the malleation sample point, the both sides of negative pressure sample point assembly communicate the one end that has the negative pressure choke respectively, the other end of every side negative pressure choke has the negative pressure sample point, malleation sample point and negative pressure sample point are all just to the flow of fluid direction, the installation work volume is little, the output differential pressure is high, differential pressure signal is stable, there is not the pulsation, high precision, prevent that stifled performance is extremely strong, wingly prevent stifled multiple spot flowmeter has fully considered a large amount of field usage states, in the pressure port footpath, great improvement has been done to parts such as pressure port direction, the stifled performance of preventing of product has greatly been strengthened, realized exempting from to sweep, do no need maintenance.

Description

Wing anti-blocking multipoint stream gauge
Technical field
The utility model relates to flowmeter, particularly the wing anti-blocking multipoint stream gauge of one.
Background technology
The flue gas flow measurement mechanism that current state's electricity fuel-burning power plant uses has a variety of, wherein flue before and after Denitration in Boiler, coal pipe, containing the air channel of high dust because measured pipeline ash quantity is large or containing a large amount of coal dust, temperature high, wear-resisting official post used time but the problem of all depositing in the following areas: stifled grey plugging is serious, has influence on device and normally uses; The inaccurate influential system of data is thrown automatically.
Summary of the invention
The purpose of this utility model is the deficiency overcoming above-mentioned technology, thus provides a kind of wing anti-blocking multipoint stream gauge, has essential choke preventing function, does not need additional any purging measure, can long-term non-maintaining operation.
The technical scheme that the utility model adopts is such: wing anti-blocking multipoint stream gauge, comprise sleeve pipe, web joint, malleation sampling spot assembly and sampling below atmospheric pressure point assembly is provided with between described sleeve pipe and described web joint, the both sides of described malleation sampling spot assembly are communicated with one end of malleation trunnion respectively, described in every side, the other end of malleation trunnion is all communicated with positive pressure pipe, the two ends of described positive pressure pipe have malleation sampling spot, the both sides of described sampling below atmospheric pressure point assembly are communicated with one end of negative pressure trunnion respectively, described in every side, the other end of negative pressure trunnion has negative pressure taking sampling point, the flow direction of all positive convection cell of described malleation sampling spot and described negative pressure taking sampling point.
Further improvement: the top of described sleeve pipe has been bolted to connection cover plate, is provided with sealing gasket between described cover plate and described sleeve pipe.
Further improvement: be connected with stiffener between described sleeve pipe and described web joint.
Further improvement: be connected by strengthening connecting rod between two described negative pressure taking sampling points.
Further improvement: the below of described web joint has the total support in the end, and total support matches with the locating sleeve on pipeline at the described end.
By adopting preceding solution, the beneficial effects of the utility model are: installation workload is little, output differential pressure is high, differential pressure signal is stablized, pulse free, precision are high, anti-blocking performance is extremely strong, wing anti-blocking multipoint stream gauge has taken into full account a large amount of onsite application state, in pressure aperture, pressure port direction etc., part has done larger improvement, greatly enhance the anti-blocking performance of product, achieve exempt from purge, non-maintaining.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram (one);
Fig. 2 is the utility model schematic diagram (two).
Wherein: 1, sleeve pipe; 2, web joint; 3, malleation sampling spot assembly; 4, sampling below atmospheric pressure point assembly; 5, malleation trunnion; 6, positive pressure pipe; 7, malleation sampling spot; 8, negative pressure trunnion; 9, negative pressure taking sampling point; 10, cover plate; 11, stiffener; 12, the total support in the end.
Embodiment
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
Wing anti-blocking multipoint stream gauge can be used for the flow measurement of circular pipe and rectangular duct, its structure installment form mainly contains plug-in type, monoblock type, wing anti-blocking multipoint stream gauge with external leading-in device for former state, a kind of novel product of research and development through long-term research checking, primarily of one group of anti-blocking ram-air pipe and one group of anti-blocking larynx footpath pipe composition, this version, without the need to installing back-blowing device, not only there is good anti-blocking property, but also obtain the effect of head pressure multiplying power.
As shown in Figure 1-2, the utility model discloses wing anti-blocking multipoint stream gauge, comprise sleeve pipe 1, web joint 2, malleation sampling spot assembly 3 and sampling below atmospheric pressure point assembly 4 is provided with between described sleeve pipe 1 and described web joint 2, the both sides of described malleation sampling spot assembly 3 are communicated with one end of malleation trunnion 5 respectively, the other end of malleation trunnion 5 described in every side is all communicated with positive pressure pipe 6, the two ends of described positive pressure pipe 6 have malleation sampling spot 7, the both sides of described sampling below atmospheric pressure point assembly 4 are communicated with one end of negative pressure trunnion 8 respectively, described in every side, the other end of negative pressure trunnion 8 has negative pressure taking sampling point 9, the flow direction of all positive convection cell of described malleation sampling spot 7 and described negative pressure taking sampling point 9.
In order to ensure sealing effectiveness, the top of described sleeve pipe 1 has been bolted to connection cover plate 10, is provided with sealing gasket between described cover plate 10 and described sleeve pipe 1.
In order to improve flowmeter intensity, between described sleeve pipe 1 and described web joint 2, being connected with stiffener 11, being connected by strengthening connecting rod between two described negative pressure taking sampling points 9.
Conveniently install, the below of described web joint 2 has the total support 12 in the end, total support 12 matches with the locating sleeve on pipeline at the described end, after determining installation site, (or multiple) square hole is opened on request along conduit axis direction, and open locating sleeve on its opposite, then flange to be placed in large pipeline rectangle oblong aperture and good locating sleeve is welded again, notice during welding that the ring flange axis of symmetry is parallel with conduit axis, and guarantee the center in wing anti-blocking multipoint stream gauge Inserting Tube road, or pass through and vertical pipe central axis, its total head measuring tube must just be installed meeting flow velocity direction.
On vertical pipe, wing anti-blocking multipoint stream gauge can in arbitrary level angle Inserting Tube of pipeline, and for vertically arranged wing anti-blocking multipoint stream gauge, it has stronger corrosion-resistant, anti-clogging function, substantially avoids safeguarding.
On horizontal pipe, wing anti-blocking multipoint stream gauge is preferably from the vertical direction Inserting Tube of pipeline, also can in horizontal direction Inserting Tube, when the wing anti-blocking multipoint stream gauge (on vertical pipe) of horizontal plug-in type measures dirty fluid, consider easily blocking pressure port or connecting pipe, wing anti-blocking multipoint stream gauge changes the angle of measuring sensor by design and arranges from clearing apparatus, has good anti-blocking property, normally can measure for a long time, substantially avoid safeguarding.
More than show and describe ultimate principle of the present utility model and principal character and advantage thereof; the technician of the industry should understand; the utility model is not restricted to the described embodiments; above-described embodiment just illustrates principle of the present utility model with description in explanation; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall within the scope of claimed the utility model, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (5)

1. wing anti-blocking multipoint stream gauge, it is characterized in that: comprise sleeve pipe, web joint, malleation sampling spot assembly and sampling below atmospheric pressure point assembly is provided with between described sleeve pipe and described web joint, the both sides of described malleation sampling spot assembly are communicated with one end of malleation trunnion respectively, described in every side, the other end of malleation trunnion is all communicated with positive pressure pipe, the two ends of described positive pressure pipe have malleation sampling spot, the both sides of described sampling below atmospheric pressure point assembly are communicated with one end of negative pressure trunnion respectively, described in every side, the other end of negative pressure trunnion has negative pressure taking sampling point, the flow direction of all positive convection cell of described malleation sampling spot and described negative pressure taking sampling point.
2. wing anti-blocking multipoint stream gauge according to claim 1, is characterized in that: the top of described sleeve pipe has been bolted to connection cover plate, is provided with sealing gasket between described cover plate and described sleeve pipe.
3. wing anti-blocking multipoint stream gauge according to claim 1, is characterized in that: be connected with stiffener between described sleeve pipe and described web joint.
4. wing anti-blocking multipoint stream gauge according to claim 1, is characterized in that: be connected by strengthening connecting rod between two described negative pressure taking sampling points.
5. wing anti-blocking multipoint stream gauge according to claim 1, is characterized in that: the below of described web joint has the total support in the end, and total support matches with the locating sleeve on pipeline at the described end.
CN201520551946.7U 2015-07-28 2015-07-28 Wingly prevent stifled multiple spot flowmeter Active CN204924311U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520551946.7U CN204924311U (en) 2015-07-28 2015-07-28 Wingly prevent stifled multiple spot flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520551946.7U CN204924311U (en) 2015-07-28 2015-07-28 Wingly prevent stifled multiple spot flowmeter

Publications (1)

Publication Number Publication Date
CN204924311U true CN204924311U (en) 2015-12-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520551946.7U Active CN204924311U (en) 2015-07-28 2015-07-28 Wingly prevent stifled multiple spot flowmeter

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113324598A (en) * 2021-04-20 2021-08-31 江元(天长)科技股份有限公司 Prevent stifled structure and flowmeter with clearance function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113324598A (en) * 2021-04-20 2021-08-31 江元(天长)科技股份有限公司 Prevent stifled structure and flowmeter with clearance function

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