CN103375324A - phase modulation pressurized water air bottle and false-action preventing method for safety valve - Google Patents
phase modulation pressurized water air bottle and false-action preventing method for safety valve Download PDFInfo
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- CN103375324A CN103375324A CN2013103078836A CN201310307883A CN103375324A CN 103375324 A CN103375324 A CN 103375324A CN 2013103078836 A CN2013103078836 A CN 2013103078836A CN 201310307883 A CN201310307883 A CN 201310307883A CN 103375324 A CN103375324 A CN 103375324A
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- safety valve
- gas tank
- phase modulation
- false
- modulation setting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention belongs to the technical field of electricity, in particular to a phase modulation pressurized water air bottle and a false-action preventing method for a safety valve. The method is adaptable to false-action processing of the safety valve of the phase modulation pressurized water air bottle of a pumping and power storing plant; in a power house provided with frequent-turning-up and large-vibration plant units, false action and reseating failure of the safety valve can be effectively controlled, and air bottle decompression caused by false actions of the safety valve and resulting in affecting plant units for standby application can be prevented completely. The device comprises a bottle body and a safety valve. An inlet, an air inlet tube and an air outlet tube are arranged on the side of the bottle body. The top of the bottle body is prevented from a pressure measuring pipeline and the safety valve. The air inlet tube is connected to an external air compressor. False actions of the safety valve can be prevented, the safety valve can reseat normally after operating correctly, and emergency processing of closing an inlet valve of the air bottle manually can be omitted; the device is safe and reliable, and service life of equipment and safety of operations can be improved obviously.
Description
Technical field
The invention belongs to the power technology field, relate in particular to a kind of method that prevents phase modulation setting-out gas tank and safety valve malfunction.The method is applicable to the phase modulation setting-out gas tank safety valve malfunction of pumped storage power station power station and processes, in the factory building frequent at unit starting, that vibration is larger, can effectively control the safety valve malfunction and not return seat, stopping affects the phenomenon of unit reserve because the safety valve malfunction causes the gas tank pressure release.
Prior art
As shown in Figure 1, Fig. 1 is gas tank structural representation in the prior art.The safety valve of phase modulation setting-out gas tank normally is arranged on the side of tank body in the prior art.
Phase modulation setting-out gas tank majority is arranged in pumped storage power station spiral case layer or turbine floor, because during the unit generator operation as synchronous condenser, the gas tank pressure drop is fast, generally at 30 seconds internal pressure decline 2-3MPa, cause air compressor at once to start, huge airwaves reaches gas tank, and unit is also be in the start up period, vibration is 2 times of stable operation, and this moment, safety valve very easily moved, and caused the gas tank pressure release, airwaves in the pressure release meeting aggravation gas tank, thereby cause safety valve not return seat, until the gas tank with no pressure, it is normally for subsequent use to affect unit.
Summary of the invention
For above-mentioned problems of the prior art, the invention provides a kind of method that prevents phase modulation setting-out gas tank and safety valve malfunction, its objective is provides a kind of novel preventing phase modulation setting-out gas tank and safety valve malfunction thereof and do not return a processing method, its safety valve can malfunction, can normally return seat behind the safety valve correct operation, need not manually to close gas tank inlet valve emergency treatment; Safe and reliable, service life of equipment is significantly improved.
The present invention is achieved through the following technical solutions:
A kind of phase modulation setting-out gas tank that prevents comprises tank body and safety valve; The tank body side is respectively equipped with and enters the hole, suction tude and steam outlet pipe; The tank body top is provided with pressure measurement pipeline and safety valve; Suction tude is connected with outside air compressor.
Above the described pressure measurement pipeline pressure switch and sensor are installed.
Described safety valve is connected by pipeline with gas tank, and described pipeline caliber is DN40 mm.
Gas tank in the middle of the outlet port of described outside air compressor is provided with, gas tank capacity be prevent phase modulation setting-out gas tank 0.6-1.0 doubly.
Utilize described a kind of method of phase modulation setting-out gas tank safety valve malfunction that prevents to be:
(1) whether do not return seat after judging the whether malfunction of gas tank safety valve, action according to runnability;
(2) according to the gas tank situation, judge that whether gas tank safety valve position is in the side;
(3) if, then formulate modification scheme, and put on record to city Bureau of Technical Supervision, handle install to transform and inform book;
(4) undertaken the position transformation of gas tank safety valve is moved end socket position, gas tank top with safety valve by having the unit in charge of construction that the transformation pressurized container is installed;
(5) gas tank in the middle of the air compressor exit position increases, the gas tank capacity is phase modulation setting-out gas tank 0.6-1.0 times;
(6) increase the caliber of safety valve and gas tank connecting pipeline, with former pipeline diameter with former pipeline diameter DN32mm(latus rectum) caliber change into DN40mm;
(7) shutoff is welded in former safety valve position;
(8) middle gas tank is carried out bulge test, to city's special equipment supervision and inspection institute apply for survey, and handle and use registration;
(9) complete.
Advantage of the present invention and beneficial effect are: the present invention is applicable to the phase modulation setting-out gas tank safety valve malfunction of pumped storage power station power station and processes, in the factory building frequent at unit starting, that vibration is larger, can effectively control the safety valve malfunction and not return seat, stopping affects the phenomenon of unit reserve because the safety valve malfunction causes the gas tank pressure release.Again can malfunction because of safety valve in apparatus of the present invention, and behind the safety valve correct operation, can normally return seat, need not manually to close gas tank inlet valve emergency treatment; Safe and reliable, can significantly improve the Security of service life of equipment and operation.
Safety valve of the present invention is seen Fig. 1 by the tank body side, is modified to the tank body top, sees Fig. 3, and will increase with tank body connecting pipeline caliber.
The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is gas tank structural representation in the prior art;
Fig. 2 is external structure schematic representation of the present invention;
Fig. 3 is structural representation of the present invention;
Fig. 4 is the plan view of Fig. 3;
Fig. 5 is workflow structured flowchart of the present invention;
Among the figure: tank body 1, safety valve 2, pressure measurement pipeline 3 enters hole 4, suction tude 5, steam outlet pipe 6.
Embodiment
The present invention is a kind of method that prevents phase modulation setting-out gas tank and safety valve malfunction.Wherein, a kind of phase modulation setting-out gas tank that prevents such as Fig. 2-shown in Figure 4, is by gas tank tank body 1, safety valve 2, and pressure measurement pipeline 3 enters hole 4, suction tude 5, steam outlet pipe 6 compositions such as grade.Wherein, air compressor produces high pressure air and enters in the gas tank tank body 1 by suction tude 5, setting pressure switch and sensor above the pressure measurement pipeline 3, the start and stop of control air compressor when unit needs to use gas, enter the unit draft tube by steam outlet pipe 6, when malfunctioning or other reasons causes gas tank pressure to surpass Set pressure when the pressure switch contact, safety valve 2 actions at tank body top, namely spool is opened, and discharges unnecessary pressure.
The present invention is arranged on position away from the gas tank air inlet/outlet with safety valve, and safety valve is arranged on the end socket position, top of gas tank tank body, and the airwaves that end socket is subject to is minimum.Simultaneously the present invention has also increased the caliber of connecting pipeline between safety valve and the gas tank, original diameter DN32 caliber is changed be increased to DN40, and after caliber became greatly, gas flow rates diminished, and vibration diminishes.Gas tank in the middle of the air compressor exit position increases, the gas tank capacity is phase modulation setting-out gas tank 0.6-1.0 times, when phase modulation setting-out gas tank pressure drop, there is middle gas tank supply moment, produces wave thereby reduce air compressor.
A kind of method of phase modulation setting-out gas tank safety valve malfunction that prevents of the present invention is:
1, whether do not return seat after judging the whether malfunction of gas tank safety valve, action according to runnability;
2, according to the gas tank situation, judge that whether gas tank safety valve position is in the side;
3 if, then formulate modification scheme, and put on record to city Bureau of Technical Supervision, handle install to transform and inform book;
4, undertaken the position transformation of gas tank safety valve is moved end socket position, gas tank top with safety valve by having the unit in charge of construction that the transformation pressurized container is installed;
5, gas tank in the middle of the air compressor exit position increases, the gas tank capacity is phase modulation setting-out gas tank 0.6-1.0 times;
6, increase the caliber of safety valve and gas tank connecting pipeline, with former pipeline diameter DN32mm(latus rectum) caliber change into DN40mm;
7, shutoff is welded in former safety valve position;
8, middle gas tank is carried out bulge test, to city's special equipment supervision and inspection institute apply for survey, and handle and use registration;
9, complete.
Claims (5)
1. one kind prevents phase modulation setting-out gas tank, comprises tank body (1) and safety valve (2), it is characterized in that: tank body (1) side is respectively equipped with and enters hole (4), suction tude (5) and steam outlet pipe (6); Tank body (1) top is provided with pressure measurement pipeline (3) and safety valve (2); Suction tude (5) is connected with outside air compressor.
2. a kind of phase modulation setting-out gas tank that prevents according to claim 1 is characterized in that: above the described pressure measurement pipeline (3) pressure switch and sensor are installed.
3. a kind of phase modulation setting-out gas tank that prevents according to claim 1, it is characterized in that: described safety valve (2) is connected by pipeline with gas tank (1), and described pipeline caliber is DN40 mm.
4. a kind of phase modulation setting-out gas tank that prevents according to claim 1 is characterized in that: gas tank in the middle of the outlet port of described outside air compressor is provided with, gas tank capacity be prevent phase modulation setting-out gas tank 0.6-1.0 doubly.
5. utilize a kind of method of phase modulation setting-out gas tank safety valve malfunction that prevents claimed in claim 1 to be:
(1) whether do not return seat after judging the whether malfunction of gas tank safety valve, action according to runnability;
(2) according to the gas tank situation, judge that whether gas tank safety valve position is in the side;
(3) if, then formulate modification scheme, and put on record to city Bureau of Technical Supervision, handle install to transform and inform book;
(4) undertaken the position transformation of gas tank safety valve is moved end socket position, gas tank top with safety valve by having the unit in charge of construction that the transformation pressurized container is installed;
(5) gas tank in the middle of the air compressor exit position increases, the gas tank capacity is phase modulation setting-out gas tank 0.6-1.0 times;
(6) increase the caliber of safety valve and gas tank connecting pipeline, with former pipeline diameter with former pipeline diameter DN32mm(latus rectum) caliber change into DN40mm;
(7) shutoff is welded in former safety valve position;
(8) middle gas tank is carried out bulge test, to city's special equipment supervision and inspection institute apply for survey, and handle and use registration;
(9) complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310307883.6A CN103375324B (en) | 2013-07-22 | 2013-07-22 | A kind of method preventing phase modulation setting-out gas tank and safety valve malfunction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310307883.6A CN103375324B (en) | 2013-07-22 | 2013-07-22 | A kind of method preventing phase modulation setting-out gas tank and safety valve malfunction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103375324A true CN103375324A (en) | 2013-10-30 |
| CN103375324B CN103375324B (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310307883.6A Active CN103375324B (en) | 2013-07-22 | 2013-07-22 | A kind of method preventing phase modulation setting-out gas tank and safety valve malfunction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847673A (en) * | 2015-05-27 | 2015-08-19 | 广东蓄能发电有限公司 | Condition based maintenance method of pressurized-water preserving ability under working condition of phase modulation of unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557902A (en) * | 1978-06-29 | 1980-01-21 | Toshiba Corp | Floating-up preventing method for pump water-wheel rotary part |
| CN2055511U (en) * | 1989-02-01 | 1990-04-04 | 王永泽 | Automatic air conpensatory water supply tank |
| CN2687370Y (en) * | 2004-02-25 | 2005-03-23 | 梁荣斌 | Air-collecting power energy device |
| CN102312765A (en) * | 2010-07-05 | 2012-01-11 | 付建立 | Telluric magnetic force generating application system |
| CN203394681U (en) * | 2013-07-22 | 2014-01-15 | 国家电网公司 | Gas tank with function of preventing phase modulation water bearing |
-
2013
- 2013-07-22 CN CN201310307883.6A patent/CN103375324B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557902A (en) * | 1978-06-29 | 1980-01-21 | Toshiba Corp | Floating-up preventing method for pump water-wheel rotary part |
| CN2055511U (en) * | 1989-02-01 | 1990-04-04 | 王永泽 | Automatic air conpensatory water supply tank |
| CN2687370Y (en) * | 2004-02-25 | 2005-03-23 | 梁荣斌 | Air-collecting power energy device |
| CN102312765A (en) * | 2010-07-05 | 2012-01-11 | 付建立 | Telluric magnetic force generating application system |
| CN203394681U (en) * | 2013-07-22 | 2014-01-15 | 国家电网公司 | Gas tank with function of preventing phase modulation water bearing |
Non-Patent Citations (2)
| Title |
|---|
| 梁建和等: "《水轮机及辅助设备》", 31 March 2005, article "水电站油气系统及进水阀", pages: 242-243 * |
| 梁建和等: "《水轮机及辅助设备》", 31 March 2005, 水利水电出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847673A (en) * | 2015-05-27 | 2015-08-19 | 广东蓄能发电有限公司 | Condition based maintenance method of pressurized-water preserving ability under working condition of phase modulation of unit |
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| Publication number | Publication date |
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| CN103375324B (en) | 2015-12-23 |
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