CN104949732A - Liquid level measuring device of equipment cooling water system surge tank - Google Patents
Liquid level measuring device of equipment cooling water system surge tank Download PDFInfo
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- CN104949732A CN104949732A CN201510323809.2A CN201510323809A CN104949732A CN 104949732 A CN104949732 A CN 104949732A CN 201510323809 A CN201510323809 A CN 201510323809A CN 104949732 A CN104949732 A CN 104949732A
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- cooling water
- water system
- liquid level
- differential pressure
- pressure transmitter
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention relates to a liquid level measuring device of an equipment cooling water system surge tank. The measuring device comprises a communicating vessel (3) and a differential pressure transmitter (4). The upper portion and the lower portion of the communicating vessel (3) are communicated with the upper portion and the lower portion of the equipment cooling water system surge tank (1) through two connection pipes (2) respectively, the high-pressure end (7) of the differential pressure transmitter (4) is communicated with the lower portion of the communicating vessel (3) through a first instrument pipeline (5), and the lower-pressure end (8) of the differential pressure transmitter (4) is communicated with the upper portion of the communicating vessel (3) through a second instrument pipeline (6). By means of the liquid level measuring device, accuracy of liquid level measuring is guaranteed, modifying amount of the whole device is little, and an original structure can not be damaged.
Description
Technical field
The invention belongs to nuclear industry component cooling water system field of measuring technique, be specifically related to a kind of component cooling water system ripple tank liquid level emasuring device.
Background technology
Component cooling water system ripple tank is connected on the suction side of component cooling pump, for pump provides suction pressure, and affords redress to expansion, contraction and possible leakage.
Every platform ripple tank is connected with linker by connecting pipe, differential pressure transmitter then on linker pressure carry out level gauging.Wherein the high-pressure side of differential pressure transmitter is communicated with linker bottom by instrument pipeline, and low pressure end directly logical factory building air.Because ripple tank tank deck communicates with nuclear auxiliary building ventilating system, and air between instrument mounting design low pressure end direct connecting houses, cause measuring error because low pressure end pressure is different from the pressure of actual ventilating system, differential pressure transmitter cannot truly reflect ripple tank actual liquid level.Differential pressure transmitter carries out except liquid level display except at master-control room, and its threshold value is also as the start and stop/Switching Condition switching isolation valve between component cooling pump and series, and participation part establishes the control of cold water user isolation valve.Therefore, the accuracy of ripple tank level gauging, the normal operation for support equipment cooling water system is most important.
Summary of the invention
For the defect existed in prior art, the invention provides a kind of component cooling water system ripple tank liquid level emasuring device, this device can guarantee the accuracy of level gauging, thus ensures the normal operation of component cooling water system; Index word is little, can not damage original structure.
For reaching above object, the technical solution used in the present invention is: provide a kind of component cooling water system ripple tank liquid level emasuring device, this measurement mechanism comprises linker and differential pressure transmitter, described linker upper and lower is communicated with ripple tank upper and lower respectively by two connecting pipes, the high-pressure side of described differential pressure transmitter is connected with described linker bottom by first instrument pipeline, and the low pressure end of described differential pressure transmitter is connected with described linker top by second instrument pipeline.
Further, the setting height(from bottom) of described differential pressure transmitter is lower than the setting height(from bottom) of described linker.
Further, described second instrument pipeline is provided with normally open valve door.
Further, described normally open valve Men Weigen valve.
Further, described first instrument pipeline is provided with root valve.
Advantageous Effects of the present invention is: the present invention is by being connected differential pressure transmitter low pressure end with linker top, ensure that the pressure of differential pressure transmitter low pressure end measurement is the pressure of component cooling water system ripple tank abhiseca, thus the actual liquid level of ripple tank can be reflected, guarantee the accuracy of level gauging, the normal operation of support equipment cooling water system; The present invention is the improvement carried out on the basis not destroying original structure, and index word is little, cost-saving.
Accompanying drawing explanation
Fig. 1 is the structural representation of present device cooling water system ripple tank liquid level emasuring device.
In figure:
1-ripple tank 2-connecting pipe 3-linker 4-differential pressure transmitter 5-first instrument pipeline
The low pressure end of the high-pressure side 8-differential pressure transmitter of 6-second instrument pipeline 7-differential pressure transmitter
9-normally open valve door 10-root valve
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, be the structural representation of present device cooling water system ripple tank liquid level emasuring device.This measurement mechanism comprises linker 3 and differential pressure transmitter 4; The upper and lower of linker 3 is connected with the upper and lower of component cooling water system ripple tank 1 respectively by two connecting pipes 2; The high-pressure side 7 of differential pressure transmitter 4 is connected with linker 3 bottom by first instrument pipeline 5, and the low pressure end 8 of differential pressure transmitter 4 is connected with linker 3 top by second instrument pipeline 6.
Wherein, first instrument pipeline 5 is provided with root valve 10, when differential pressure transmitter 4 goes wrong, can cut off the circulation of pipeline medium, be convenient to change instrument or instrument pipeline; Second instrument pipeline 6 is provided with normally open valve door 9, ensures the normal pressure of differential pressure transmitter; Be preferably root valve, when differential pressure transmitter 4 goes wrong, the circulation of pipeline medium can be cut off.
In addition, in order to ensure normal pressure, the setting height(from bottom) of differential pressure transmitter is lower than the setting height(from bottom) of linker, and namely the setting height(from bottom) of differential pressure transmitter should not higher than the pressure tappings of bottom.
It is constant that the high-pressure side of differential pressure transmitter of the present invention gets source position, low pressure end is got source position and is changed into and being directly communicated with linker top, like this, the pressure of low pressure end is identical with the pressure of nuclear auxiliary building ventilating system, guarantees that differential pressure transmitter truly reflects the actual liquid level of ripple tank 1.
The present invention is described for 1 differential pressure transmitter, can select the quantity of differential pressure transmitter according to actual conditions.Because differential pressure transmitter is core level instrument, amended low pressure end instrument pipeline should meet shockproof requirements.
In sum, the present invention is not destroying on the basis of original structure, carries out the amendment of minimum, just can ensure the accuracy of level gauging, the normal operation of support equipment cooling system.
Above content is illustrating of doing the present invention of the example of bonding apparatus cooling water system ripple tank level gauging, but this patent is not limited to above-mentioned example, be equally applicable to its all upper spaces through adaptability revision be not directly connected with room air, and the liquid level measuring system of the closed container be connected with ventilating system or other gas systems.Concerning general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deductions and conversion can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. a component cooling water system ripple tank liquid level emasuring device, this measurement mechanism comprises linker (3) and differential pressure transmitter (4), it is characterized in that: described linker (3) upper and lower is connected with component cooling water system ripple tank (1) upper and lower respectively by two connecting pipes (2), the high-pressure side (7) of described differential pressure transmitter (4) is connected with described linker (3) bottom by first instrument pipeline (5), the low pressure end (8) of described differential pressure transmitter (4) is connected with described linker (3) top by second instrument pipeline (6).
2. component cooling water system ripple tank liquid level emasuring device as claimed in claim 1, is characterized in that: the setting height(from bottom) of described differential pressure transmitter (4) is lower than the setting height(from bottom) of described linker (3).
3. component cooling water system ripple tank liquid level emasuring device as claimed in claim 1 or 2, is characterized in that: described second instrument pipeline (6) is provided with normally open valve door (9).
4. component cooling water system ripple tank liquid level emasuring device as claimed in claim 3, is characterized in that: described normally open valve Men Weigen valve.
5. component cooling water system ripple tank liquid level emasuring device as claimed in claim 1 or 2, is characterized in that: described first instrument pipeline (5) is provided with root valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323809.2A CN104949732A (en) | 2015-06-12 | 2015-06-12 | Liquid level measuring device of equipment cooling water system surge tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323809.2A CN104949732A (en) | 2015-06-12 | 2015-06-12 | Liquid level measuring device of equipment cooling water system surge tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104949732A true CN104949732A (en) | 2015-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510323809.2A Pending CN104949732A (en) | 2015-06-12 | 2015-06-12 | Liquid level measuring device of equipment cooling water system surge tank |
Country Status (1)
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| CN (1) | CN104949732A (en) |
Citations (7)
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| CN2844990Y (en) * | 2005-09-02 | 2006-12-06 | 山东华鲁恒升化工股份有限公司 | Condensed liquid levelling device |
| CN201191260Y (en) * | 2008-03-20 | 2009-02-04 | 北京博奇电力科技有限公司 | Intra-box serous fluid density measuring device |
| US20100281954A1 (en) * | 2008-11-24 | 2010-11-11 | Korea Hydro & Nuclear Power Co., Ltd. | Test apparatus and method for safety valve |
| CN102338652A (en) * | 2011-07-08 | 2012-02-01 | 中国石油化工股份有限公司 | Differential-pressure type anti-freezing liquid level meter |
| CN102840896A (en) * | 2012-09-05 | 2012-12-26 | 中国石油化工集团公司 | Liquid level measuring device |
| CN103871522A (en) * | 2012-12-11 | 2014-06-18 | 中国核动力研究设计院 | Pressurizer water level measurement method based on digitalization technology |
| CN204178730U (en) * | 2014-11-19 | 2015-02-25 | 中广核工程有限公司 | Pressurized-water reactor nuclear power plant pressure container water level measuring device |
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2015
- 2015-06-12 CN CN201510323809.2A patent/CN104949732A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2844990Y (en) * | 2005-09-02 | 2006-12-06 | 山东华鲁恒升化工股份有限公司 | Condensed liquid levelling device |
| CN201191260Y (en) * | 2008-03-20 | 2009-02-04 | 北京博奇电力科技有限公司 | Intra-box serous fluid density measuring device |
| US20100281954A1 (en) * | 2008-11-24 | 2010-11-11 | Korea Hydro & Nuclear Power Co., Ltd. | Test apparatus and method for safety valve |
| CN102338652A (en) * | 2011-07-08 | 2012-02-01 | 中国石油化工股份有限公司 | Differential-pressure type anti-freezing liquid level meter |
| CN102840896A (en) * | 2012-09-05 | 2012-12-26 | 中国石油化工集团公司 | Liquid level measuring device |
| CN102840896B (en) * | 2012-09-05 | 2015-06-10 | 中国石油化工集团公司 | Liquid level measuring device |
| CN103871522A (en) * | 2012-12-11 | 2014-06-18 | 中国核动力研究设计院 | Pressurizer water level measurement method based on digitalization technology |
| CN204178730U (en) * | 2014-11-19 | 2015-02-25 | 中广核工程有限公司 | Pressurized-water reactor nuclear power plant pressure container water level measuring device |
Non-Patent Citations (1)
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| 张东风: "《电力热力过程自动化》", 31 August 2011, 中国电力出版社 * |
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Application publication date: 20150930 |
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