CN103231774B - For buffer tube and the assembly method thereof of differential pressure transducer atmosphere inlet end - Google Patents
For buffer tube and the assembly method thereof of differential pressure transducer atmosphere inlet end Download PDFInfo
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- CN103231774B CN103231774B CN201310172706.1A CN201310172706A CN103231774B CN 103231774 B CN103231774 B CN 103231774B CN 201310172706 A CN201310172706 A CN 201310172706A CN 103231774 B CN103231774 B CN 103231774B
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- buffer tube
- seat board
- flange seat
- differential pressure
- pressure transducer
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Abstract
The invention discloses a kind of buffer tube for differential pressure transducer bar pressure entrance point, comprise cutting ferrule communication cabin component, have the flange seat board in hole, buffer tube flange seat board, buffer tube body, deck and communication cabin component compound plate and assembly method thereof.The present invention is directed to differential pressure transducer bar pressure end, by arranging buffer tube and preferred arrangement, effectively reduce the bar pressure fluctuation in differential pressure transducer inlet duct, make it not by the impact of ambient weather change, and avoid the corrosion of outdoor sea situation to pipeline, for differential pressure transducer provides accurately, stable bar pressure numerical benchmark, thus ensure that the accuracy of sensor output signal and the safety of system automation control.
Description
Technical field
The present invention relates to buffer tube and the assembly method thereof of the differential pressure transducer bar pressure entrance point in shipboard automation control system, be particularly applied to liquid cargo barge fortune system and the nitrogen system etc. of liquefied natural gas carrier (LNG ship).
Background technology
In ship building process, there is a lot of differential pressure transducer, in the medium needing two pipelines to be connected respectively to required monitoring and air.For the method for designing of bar pressure one end, conventionally, roughly there are two kinds of methods:
The first is that sensor pipeline directly passes deck bulkhead, increases a protective tube made by blind flanged spool piece in the open, and in low temperature perforate, introduced by bar pressure under environment.This way is simple, directly, but can not avoid because outdoor sea situation weather reason makes the airflow fluctuation that enters, thus to the illusion that sensor causes bar pressure to fluctuate, refer to Fig. 1.Further, because protective tube is arranged in open air, the corrosion of marine environment is easily received.
The second is that buffer tube is arranged in indoor, see Fig. 2, can avoid the corrosion of parts like this, shortcoming is or has no idea to solve because outdoor sea situation weather reason makes to enter the airflow fluctuation of buffer tube inside, thus to the illusion that sensor causes bar pressure to fluctuate.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of buffer tube for differential pressure transducer atmosphere inlet end is provided, what can not be subject to ambient weather disturbing influence in real time accurately truly reflects bar pressure, for sensor provides accurate benchmark, to meet the needs that system automation controls, adapt to the development of Modern Shipbuilding industry.
For achieving the above object, the invention provides following technical scheme:
For a buffer tube for differential pressure transducer bar pressure entrance point, feature is that its formation comprises: cutting ferrule communication cabin component, the flange seat board having hole, buffer tube flange seat board, buffer tube body, deck and communication cabin component compound plate.
Be fixedly connected with described deck in described buffer tube body lower end;
Be connected with described buffer tube flange seat board in described buffer tube body upper end, this buffer tube flange seat board is flexibly connected with flange seat board by bolt, and the upper end of this flange seat board is fixedly connected with communication cabin component compound plate;
Described cutting ferrule communication cabin component is fixed in the perforate of described flange seat board.
Described buffer tube body interior is provided with dividing plate.
Described dividing plate has aperture
hole.
The inner diameter of described dividing plate diameter and described buffer tube body is suitable.
Described deck having aperture is
hole.
An assembly method for the described buffer tube for differential pressure transducer bar pressure entrance point, its feature is, it is as follows that the method comprising the steps of:
1. the upper end of described buffer tube body is fixedly welded with buffer tube flange seat board;
2. in the central openings of described dividing plate
after, the circumference of this dividing plate is fixedly welded on the inwall of described buffer tube body;
3. communication cabin component compound plate is welded on flange seat board;
4. in the perforate of indoor deck
after, buffer tube body, buffer tube flange seat board and dividing plate are integrally welded to the top of deck perforate, are alignd with Shang Kong center, deck in the hole of dividing plate;
5. sensor inlet ductwork is introduced cutting ferrule communication cabin component, and be in place.
6. flange seat board is fixed by bolts on buffer tube flange seat board.
7. end is installed.
Compared with prior art, beneficial effect of the present invention is as follows:
(1) structure is simple, with low cost, and construction is simple, reliable operation.
(2) truly stablely reflect bar pressure, the pressure of buffer tube inside boisterously not to be affected by extraneous, the atmospheric pressure measurement of differential pressure transducer can not be made to produce fluctuation.
(3) corrosion that severe sea condition causes parts is avoided.
(4) actv. solves under inclement weather, air enter buffer tube inner bring extra pressure, cause bar pressure inaccurate.
Accompanying drawing explanation
Fig. 1 is the structural representation that prior art sensor pipeline connects.
Fig. 2 is the structural representation that prior art buffer tube connects.
Fig. 3 is the structural representation of the present invention for the buffer tube of differential pressure transducer bar pressure entrance point.
Fig. 4 is the structural representation of median septum of the present invention.
In figure: 1-cutting ferrule communication cabin component, 2-flange seat board, 3-buffer tube flange seat board, 4-buffer tube body, 5-dividing plate, the perforate of 6-deck, 7-deck, 8-communication cabin component compound plate.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described further, sets forth its structure and principle of work, but should not limit the scope of the invention with this in the hope of more clear.
Refer to Fig. 3 and Fig. 4, Fig. 3 is the structural representation of the present invention for the buffer tube of differential pressure transducer bar pressure entrance point, and Fig. 4 is the structural representation of median septum of the present invention.As shown in the figure, a kind of buffer tube for differential pressure transducer bar pressure entrance point, comprising: cutting ferrule communication cabin component 1, the flange seat board 2 having hole, buffer tube flange seat board 3, buffer tube body 4, deck 7 and communication cabin component compound plate 8.Be fixedly connected with described deck 7 in described buffer tube body 4 lower end; Be connected with described buffer tube flange seat board 3 in described buffer tube body 4 upper end, this buffer tube flange seat board 3 is flexibly connected with flange seat board 2 by bolt, and the upper end of this flange seat board 2 is fixedly connected with communication cabin component compound plate 8; Described cutting ferrule communication cabin component 1 is fixed in the perforate of described flange seat board 2.Described buffer tube body 4 inside is provided with dividing plate 5.Described dividing plate 5 has aperture
hole.The inner diameter of described dividing plate 5 diameter and described buffer tube body 4 is suitable.Described deck having aperture is
hole.
Concrete assembly method of the present invention is as follows:
1. the upper end of described buffer tube body 4 is fixedly welded with buffer tube flange seat board 3;
2. in the central openings of described dividing plate 5
after, the circumference of this dividing plate 5 is fixedly welded on the inwall of described buffer tube body;
3. communication cabin component compound plate 8 is welded on flange seat board 2;
4. in the perforate of indoor deck
after, buffer tube body 4, buffer tube flange seat board 3 and dividing plate 5 are integrally welded to the top of deck perforate, are alignd with Shang Kong center, deck in the hole on described dividing plate 5;
5. sensor inlet ductwork is introduced cutting ferrule communication cabin component 1, and be in place;
6. flange seat board 2 is fixed by bolts on buffer tube flange seat board 3;
7. end is installed.
Show through on probation, the present invention efficiently solves the fault of differential pressure transducer job insecurity, working sensor is reliable continually and steadily, do not affect by ambient weather, with low cost, construction is simple, and can the actv. corrosion of avoiding severe sea condition to cause parts, ensure that the working properly of automation control system, create good economic benefit, improve the technology image of shipyard.
Claims (6)
1. for a buffer tube for differential pressure transducer bar pressure entrance point, be characterised in that its formation comprises: cutting ferrule communication cabin component (1), the flange seat board (2) having hole, buffer tube flange seat board (3), buffer tube body (4), deck (7) and communication cabin component compound plate (8);
Be fixedly connected with described deck (7) in described buffer tube body (4) lower end;
Be connected with described buffer tube flange seat board (3) in described buffer tube body (4) upper end, this buffer tube flange seat board (3) is flexibly connected with the described flange seat board (2) having hole by bolt, and this upper end having the flange seat board (2) in hole is fixedly connected with communication cabin component compound plate (8);
Described cutting ferrule communication cabin component (1) is fixed on described having in the perforate of flange seat board (2) in hole.
2. the buffer tube for differential pressure transducer bar pressure entrance point according to claim 1, is characterized in that, described buffer tube body (4) inside is provided with dividing plate (5).
3. the buffer tube for differential pressure transducer bar pressure entrance point according to claim 2, is characterized in that, described dividing plate (5) has aperture and is
hole.
4. the buffer tube for differential pressure transducer bar pressure entrance point according to claim 2, is characterized in that, the inner diameter of described dividing plate (5) diameter and described buffer tube body (4) is suitable.
5., according to the arbitrary described buffer tube for differential pressure transducer bar pressure entrance point of claim 1-3, it is characterized in that, described deck having aperture is
hole.
6. an assembly method for the arbitrary described buffer tube for differential pressure transducer bar pressure entrance point of claim 1-4, it is characterized in that, it is as follows that the method comprising the steps of:
1. the upper end of described buffer tube body (4) is fixedly welded with buffer tube flange seat board (3);
2. in the central openings of described dividing plate (5)
after, the circumference of this dividing plate (5) is fixedly welded on the inwall of described buffer tube body;
3. communication cabin component compound plate (8) being welded on has on the flange seat board (2) in hole;
4. in the perforate of indoor deck
after, buffer tube body (4), buffer tube flange seat board (3) and dividing plate (5) are integrally welded to the top of deck perforate, are alignd with Shang Kong center, deck in the hole on described dividing plate (5);
5. sensor inlet ductwork is introduced cutting ferrule communication cabin component (1), and be in place;
6. the flange seat board (2) having hole is fixed by bolts on buffer tube flange seat board (3);
7. end is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310172706.1A CN103231774B (en) | 2013-05-10 | 2013-05-10 | For buffer tube and the assembly method thereof of differential pressure transducer atmosphere inlet end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310172706.1A CN103231774B (en) | 2013-05-10 | 2013-05-10 | For buffer tube and the assembly method thereof of differential pressure transducer atmosphere inlet end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103231774A CN103231774A (en) | 2013-08-07 |
| CN103231774B true CN103231774B (en) | 2015-09-23 |
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| CN201310172706.1A Active CN103231774B (en) | 2013-05-10 | 2013-05-10 | For buffer tube and the assembly method thereof of differential pressure transducer atmosphere inlet end |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104655355B (en) * | 2013-11-19 | 2019-03-08 | 中国舰船研究设计中心 | Pressure sampling probe and superpressure measurement, regulating system in flat airflow field |
| CN106353030B (en) * | 2015-07-24 | 2022-04-19 | 常州市汇丰船舶附件制造有限公司 | Atmospheric reference pressure-based micro-overpressure detection method and detection device thereof |
| CN110694993A (en) * | 2019-09-20 | 2020-01-17 | 中国电子科技集团公司第十八研究所 | Electro-deposition zinc electrode washing device and washing method |
| CN114655386B (en) * | 2021-12-17 | 2024-03-26 | 沪东中华造船(集团)有限公司 | Pipe distribution method for measuring outboard atmospheric pressure by differential pressure sensor in marine ventilation system |
| CN116222872A (en) * | 2023-01-09 | 2023-06-06 | 深圳中广核工程设计有限公司 | Nuclear power plant radioactivity control area negative pressure centralized monitoring device |
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| CN201083672Y (en) * | 2007-10-19 | 2008-07-09 | 中国科学院沈阳科学仪器研制中心有限公司 | Auto-calibration system for absorption and resistance instrument |
| CN101957249A (en) * | 2010-09-27 | 2011-01-26 | 浙江大学 | Differential pressure measurement device and overload protection device thereof |
| KR20120084385A (en) * | 2011-01-20 | 2012-07-30 | 현대중공업 주식회사 | Control method using pressure sensor for air supply to air-cavity of air-cavity vessel |
| KR101178571B1 (en) * | 2009-10-27 | 2012-09-03 | 강릉원주대학교산학협력단 | Device for detaching anchor and device for collecting underwater sensor node |
| KR20130012329A (en) * | 2011-07-25 | 2013-02-04 | 현대중공업 주식회사 | Jig for loading of hydrophone position reference pipe |
-
2013
- 2013-05-10 CN CN201310172706.1A patent/CN103231774B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201083672Y (en) * | 2007-10-19 | 2008-07-09 | 中国科学院沈阳科学仪器研制中心有限公司 | Auto-calibration system for absorption and resistance instrument |
| KR101178571B1 (en) * | 2009-10-27 | 2012-09-03 | 강릉원주대학교산학협력단 | Device for detaching anchor and device for collecting underwater sensor node |
| CN101957249A (en) * | 2010-09-27 | 2011-01-26 | 浙江大学 | Differential pressure measurement device and overload protection device thereof |
| KR20120084385A (en) * | 2011-01-20 | 2012-07-30 | 현대중공업 주식회사 | Control method using pressure sensor for air supply to air-cavity of air-cavity vessel |
| KR20130012329A (en) * | 2011-07-25 | 2013-02-04 | 현대중공업 주식회사 | Jig for loading of hydrophone position reference pipe |
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| Publication number | Publication date |
|---|---|
| CN103231774A (en) | 2013-08-07 |
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