CN204730892U - The measuring differential flow measurement mechanism of flue gas flow - Google Patents
The measuring differential flow measurement mechanism of flue gas flow Download PDFInfo
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- CN204730892U CN204730892U CN201520425882.6U CN201520425882U CN204730892U CN 204730892 U CN204730892 U CN 204730892U CN 201520425882 U CN201520425882 U CN 201520425882U CN 204730892 U CN204730892 U CN 204730892U
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Abstract
The utility model discloses the measuring differential flow measurement mechanism of a kind of flue gas flow, comprise malleation signal processing apparatus, negative pressure signal treating apparatus and differential pressure transmitter, malleation signal processing apparatus is connected with differential pressure transmitter by malleation gauge pipe, and negative pressure signal treating apparatus is connected with differential pressure transmitter by negative pressure gauge pipe; Malleation signal processing apparatus comprises one-level malleation combining manifolds, malleation confluxes total header and malleation signal group, and negative pressure signal treating apparatus comprises one-level negative pressure combining manifolds, negative pressure confluxes total header and negative pressure signal pipe.This differential flow measurement mechanism is applicable to that Large Diameter Pipeline, straight length are shorter for a long time, gas flowfield changes large gas flow measurement.
Description
Technical field
The utility model relates to a kind of industrial instrument class differential flow measurement mechanism, is specifically related to the measuring differential flow measurement mechanism of a kind of flue gas flow.
Background technology
Meters differential flow measurement mechanism, concrete differential pressure type Large Diameter Pipeline multiple spot gas flow surveying instrument.Multiple-stage filtering type gas flow surveying instrument sensing element measures ultimate principle based on backrest measuring principle.In the prior art, the multiple measuring point of measurement mechanism adopts array to arrange, adopts pressure guiding pipe that positive and negative pressure is linked together, is then connected to transmitter meter pipe.Measuring gas flow in the very short gas pipeline of Large Diameter Pipeline, straight length, between the measuring point of this multiple spot gas flow surveying instrument, signal interferes with each other, and the shorter measuring point of distance transmitter meter pipe is comparatively large on transducer signal impact, thus produces measuring error; If survey gas flowfield and change greatly, transducer signal fluctuation is also very large, and measurement results reliability reduces, and can not use.
Utility model content
For solving above-mentioned prior art Problems existing, the utility model proposes the measuring differential flow measurement mechanism of a kind of flue gas flow, this differential flow measurement mechanism is applicable to that Large Diameter Pipeline, straight length are shorter for a long time, gas flowfield changes large gas flow measurement.
The technical solution of the utility model is achieved in that
The measuring differential flow measurement mechanism of a kind of flue gas flow, comprise malleation signal processing apparatus, negative pressure signal treating apparatus and differential pressure transmitter, described malleation signal processing apparatus is connected with described differential pressure transmitter by malleation gauge pipe, and described negative pressure signal treating apparatus is connected with described differential pressure transmitter by negative pressure gauge pipe; Described malleation signal processing apparatus comprises one-level malleation combining manifolds, malleation confluxes total header and malleation signal group, described one-level malleation combining manifolds is connected by malleation pressure guiding pipe and described malleation total header that confluxes, the both sides of described one-level malleation combining manifolds are respectively provided with 2-4 group malleation signal group, described malleation signal group comprises adjacent two malleation signal pipes and a vibrating head, and described vibrating head is arranged in described malleation signal pipe; Described negative pressure signal treating apparatus comprises one-level negative pressure combining manifolds, negative pressure confluxes total header and negative pressure signal pipe, described one-level negative pressure combining manifolds is connected by negative pressure pressure guiding pipe and described negative pressure total header that confluxes, the both sides of described one-level negative pressure combining manifolds are respectively provided with 1-4 negative pressure signal pipe, are provided with a described vibrating head in each described negative pressure signal pipe; Be provided with positive pressure sensor in described malleation signal pipe, in described negative pressure signal pipe, be provided with negative pressure transducer.
Further, described malleation pressure guiding pipe and described one-level malleation combining manifolds adopt Flange joint, and described negative pressure pressure guiding pipe and described one-level negative pressure combining manifolds adopt Flange joint.
Further, the shape of the pressure-sensitive mouth of malleation signal pipe is oblique groove, and the shape of the pressure-sensitive mouth of negative pressure signal pipe is flat mouth.
The beneficial effects of the utility model:
The measuring differential flow measurement mechanism of flue gas flow of the present utility model adopts combining manifolds, plays filter action, ensures signal stabilization; Pressure guiding pipe and gauge pipe all can be inserted in the middle part of combining manifolds, and ensure that each measuring point weights are identical, measured value is accurate, credible; In signal pipe, be provided with vibrating head, prevent pressure-sensitive mouth from blocking.Can field combinations, pressure guiding pipe and combining manifolds adopt Flange joint, combine easy for installation, are beneficial to anticorrosion.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the side view of the measuring differential flow measurement mechanism of the utility model flue gas flow;
Fig. 2 is the structural representation of malleation signal processing apparatus and negative pressure signal treating apparatus.
Accompanying drawing indicates: 1, differential pressure transmitter, and 2, malleation signal processing apparatus, 3, negative pressure signal treating apparatus, 4, malleation gauge pipe, 5, negative pressure gauge pipe, 6, flange, 7, vibrating head, 201, one-level malleation combining manifolds, 202, malleation confluxes total header, 203, malleation signal pipe, 204, malleation pressure guiding pipe, 301, one-level negative pressure header box, 302, negative pressure confluxes total header, 303, negative pressure signal pipe, 304, negative pressure pressure guiding pipe.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
With reference to Fig. 1, the measuring differential flow measurement mechanism of a kind of flue gas flow, comprises malleation signal processing apparatus 2, negative pressure signal treating apparatus 3 and differential pressure transmitter 1.Malleation signal processing apparatus 2 is connected with differential pressure transmitter 1 by malleation gauge pipe 4, and negative pressure signal treating apparatus 3 is connected 1 by negative pressure gauge pipe 5 with differential pressure transmitter.
With reference to Fig. 2, malleation signal processing apparatus 2 comprises one-level malleation combining manifolds 201, malleation is confluxed total header 202 and malleation signal group.One-level malleation combining manifolds 201 is connected by malleation pressure guiding pipe 204 and malleation total header 202 that confluxes.The both sides of one-level malleation combining manifolds 201 are respectively provided with 3 groups of malleation signal groups (can be 2 groups or 4 groups certainly).Malleation signal group comprises adjacent two malleation signal pipes 203 and a vibrating head 7.Vibrating head 7 is arranged in malleation signal pipe 203.Negative pressure signal treating apparatus 3 comprises one-level negative pressure combining manifolds 301, negative pressure is confluxed total header 302 and negative pressure signal pipe 303.One-level negative pressure combining manifolds 301 is connected by negative pressure pressure guiding pipe 304 and negative pressure total header 302 that confluxes.The both sides of one-level negative pressure combining manifolds 301 are respectively provided with 1 negative pressure signal pipe 303 (can certainly be 2,3 or 4).A vibrating head 7 is provided with in each negative pressure signal pipe 303.Be provided with positive pressure sensor in malleation signal pipe 203, in negative pressure signal pipe, 303 are provided with negative pressure transducer.
In the present embodiment, malleation pressure guiding pipe 204 adopts flange 6 to be connected with one-level malleation combining manifolds 201, and negative pressure pressure guiding pipe 304 adopts flange 6 to be connected with one-level negative pressure combining manifolds 301.The shape of the pressure-sensitive mouth of malleation signal pipe 203 is oblique groove, and the shape of the pressure-sensitive mouth of negative pressure signal pipe 303 is flat mouth.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. the measuring differential flow measurement mechanism of flue gas flow, it is characterized in that, comprise malleation signal processing apparatus, negative pressure signal treating apparatus and differential pressure transmitter, described malleation signal processing apparatus is connected with described differential pressure transmitter by malleation gauge pipe, and described negative pressure signal treating apparatus is connected with described differential pressure transmitter by negative pressure gauge pipe; Described malleation signal processing apparatus comprises one-level malleation combining manifolds, malleation confluxes total header and malleation signal group, described one-level malleation combining manifolds is connected by malleation pressure guiding pipe and described malleation total header that confluxes, the both sides of described one-level malleation combining manifolds are respectively provided with 2-4 group malleation signal group, described malleation signal group comprises adjacent two malleation signal pipes and a vibrating head, and described vibrating head is arranged in described malleation signal pipe; Described negative pressure signal treating apparatus comprises one-level negative pressure combining manifolds, negative pressure confluxes total header and negative pressure signal pipe, described one-level negative pressure combining manifolds is connected by negative pressure pressure guiding pipe and described negative pressure total header that confluxes, the both sides of described one-level negative pressure combining manifolds are respectively provided with 1-4 negative pressure signal pipe, are provided with a described vibrating head in each described negative pressure signal pipe; Be provided with positive pressure sensor in described malleation signal pipe, in described negative pressure signal pipe, be provided with negative pressure transducer.
2. the measuring differential flow measurement mechanism of flue gas flow according to claim 1, it is characterized in that, described malleation pressure guiding pipe and described one-level malleation combining manifolds adopt Flange joint, and described negative pressure pressure guiding pipe and described one-level negative pressure combining manifolds adopt Flange joint.
3. the measuring differential flow measurement mechanism of flue gas flow according to claim 1, is characterized in that, the shape of the pressure-sensitive mouth of malleation signal pipe is oblique groove, and the shape of the pressure-sensitive mouth of negative pressure signal pipe is flat mouth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520425882.6U CN204730892U (en) | 2015-06-17 | 2015-06-17 | The measuring differential flow measurement mechanism of flue gas flow |
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| CN201520425882.6U CN204730892U (en) | 2015-06-17 | 2015-06-17 | The measuring differential flow measurement mechanism of flue gas flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606167A (en) * | 2015-10-16 | 2016-05-25 | 辽宁毕托巴科技有限公司 | Plug-in Pitot flow sensor |
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- 2015-06-17 CN CN201520425882.6U patent/CN204730892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606167A (en) * | 2015-10-16 | 2016-05-25 | 辽宁毕托巴科技有限公司 | Plug-in Pitot flow sensor |
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