CN102998062A - Intelligent high-end valve and method and device for testing same - Google Patents
Intelligent high-end valve and method and device for testing same Download PDFInfo
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- CN102998062A CN102998062A CN2011102655714A CN201110265571A CN102998062A CN 102998062 A CN102998062 A CN 102998062A CN 2011102655714 A CN2011102655714 A CN 2011102655714A CN 201110265571 A CN201110265571 A CN 201110265571A CN 102998062 A CN102998062 A CN 102998062A
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Abstract
The invention discloses an intelligent high-end valve and a method and a device for testing the same. The high-end valves are detected by temperature sensors correspondingly. If the valve is in leakage, over-high temperature signals can be acquired, and thus, users can judge which valves are in leakage. By the method and the device, the valves can be detected in advance, leakage can be found out quickly once the valves are in leakage, and accordingly loss caused by leakage can be reduced.
Description
Technical field
The present invention relates to high-end valve technology field, particularly relate to a kind of high-end valve method of testing, device and the high-end valve of a kind of intelligence.
Background technology
Along with increasing rapidly of China's yield-power, the needed energy of economic development is also more and more in short supply.Although the electric power that the green energy resource such as solar electrical energy generation, wind power generation provides is more and more, thermal power generation is still the main source of China's electric energy.In the thermal power generation field, 600MW, the 1000MW of energy-conserving and environment-protective is subcritical, the supercritical thermal power unit has become main force's unit, in these units, use a large amount of high-end valves.
These high-end valves play an important role to the operation of genset, and in order to guarantee security of operation, high-end valve often has two switch valves.But owing to reasons such as technological level, day-to-day losses, the problem of interior leakage in use can still appear in high-end valve.The interior leakage of high-end valve will bring huge adverse effect to the safe and highly efficient operation of genset, therefore how reduce because the loss that high-end valves leakage brings is the significant problem of pendulum in face of each thermal power plant.
Yet existing solution for valves leakage only is to carry out remedial measures after leaking in occurring, and this method can't in time be found the interior leakage of high-end valve, therefore also can't effectively reduce the loss that high-end valves leakage brings.Certainly, also there is same problem in the high-end valve in other heat power equipments (such as steam engine).
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of high-end valve method of testing, device and the high-end valve of a kind of intelligence, the loss that is brought to reduce high-end valves leakage, and technical scheme is as follows:
A kind of high-end valve method of testing comprises:
Open the first switch valve and close the second switch valve, the serviceability temperature sensor obtains the temperature signal in the high-end valve outside;
This temperature signal and predetermined threshold value are compared, if greater than described predetermined threshold value, determine that then described second switch valve leaks in occurring.
Preferably, also comprise:
Open the second switch valve and close the first switch valve, use described temperature sensor to obtain the temperature signal in the high-end valve outside;
This temperature signal and described predetermined threshold value are compared, if greater than described predetermined threshold value, determine that then described the first switch valve leaks in occurring.
Preferably, also comprise: when using described temperature sensor to obtain the temperature signal in the high-end valve outside, the use ultrasonic sensor obtains the speed air flow in the high-end valve outside and compares with the Second Threshold of presetting, if greater than described Second Threshold, determine that then corresponding switch valve leaks in occurring.
Preferably, also comprise:
Outer signal, switch valve state, temporal information and the judged result of high-end valve of obtaining preserved.
Preferably, also comprise: when within definite valve occurs, leaking, report to the police.
The present invention also provides a kind of high-end valve testing device, comprising: valve actuator, processor and temperature sensor,
Described valve actuator is used for driving the valve opening and closing;
Described temperature sensor is used for when described valve actuator is opened the first switch valve and closed the second switch valve, obtains the temperature signal in the high-end valve outside;
Described processor is used for this temperature signal and predetermined threshold value are compared, if greater than described predetermined threshold value, determines that then described second switch valve leaks in occurring.
Preferably, described temperature sensing implement body is set to: when described valve actuator is opened the second switch valve and closed the first switch valve, the temperature signal that obtains the high-end valve outside compares this temperature signal and described predetermined threshold value to be used for described processor, greater than described predetermined threshold value the time, determine that described the first switch valve leaks in occurring.
Preferably, also comprise: ultrasonic sensor, be used for when using described temperature sensor to obtain the temperature signal in the high-end valve outside, obtain the high-end valve outside speed air flow so that described processor described speed air flow and default Second Threshold are compared, greater than described Second Threshold the time, determine that corresponding switch valve leaks in occurring.
Preferably, also comprise: memory storage, outer signal, switch valve state, temporal information and the judged result of high-end valve that is used for obtaining preserved.
Preferably, also comprise: warning device, when being used within definite valve occurs, leaking, report to the police.
The present invention also provides a kind of intelligence high-end valve, above-mentioned high-end valve testing device.
The technical scheme that is provided by the above embodiment of the invention as seen, the present invention can detect high-end valve automatically, in case valve leaks in occurring, the present invention just can get access to too high temperature signal and judge that corresponding switch valve leaks in occurring by the serviceability temperature sensor.Therefore, the present invention can detect valve in advance, when leaking within valve occurs, also can detect very soon in the appearance and leak, and can reduce the loss that interior leakage brings.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, the accompanying drawing that the following describes only is some embodiment that put down in writing among the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet of a kind of high-end valve method of testing that Fig. 1 provides for the embodiment of the invention;
The schematic flow sheet of the another kind of high-end valve method of testing that Fig. 2 provides for the embodiment of the invention;
The schematic flow sheet of the another kind of high-end valve method of testing that Fig. 3 provides for the embodiment of the invention;
The structural representation of a kind of high-end valve testing device that Fig. 4 provides for the embodiment of the invention;
The structural representation of the another kind of high-end valve testing device that Fig. 5 provides for the embodiment of the invention.
Embodiment
In order to make those skilled in the art person understand better technical scheme among the present invention, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills should belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1, a kind of high-end valve method of testing that the embodiment of the invention provides comprises:
S101, open the first switch valve and close the second switch valve.
In order to guarantee security of operation, high-end valve often has two switch valves, when carrying out shutoff operation, two switch valves all cuts out, and when carrying out open operation, two switch valves is all opened.
S102, serviceability temperature sensor obtain the temperature signal in the high-end valve outside.
It will be understood by those skilled in the art that, because heat power equipment (as: thermal power generation unit) inside presents the state of a kind of high pressure, high heat, therefore in case interior leakage event appears in high-end valve, the thermal current of heat power equipment inside will flow to the high-end valve outside, and air pressure and the temperature in the high-end valve outside are sharply raise.
S103, this temperature signal and predetermined threshold value are compared, judge whether greater than described predetermined threshold value, if so, execution in step S104 then, otherwise execution in step S105.
Wherein, predetermined threshold value can be set and revise according to actual condition, and the present invention does not do restriction at this.
S104, determine that described second switch valve leaks in occurring.
S105, determine that interior leakage does not appear in described second switch valve.
Certainly, when within definite switch valve occurs, leaking, can also report to the police.
In the situation that the first switch valve is opened and the second switch valve cuts out, the detection of leaking in can whether carrying out the second switch valve.In like manner, in the situation that the second switch valve is opened and the first switch valve cuts out, can leak in whether the first switch valve and detect.Therefore, detect one of them switch valve whether in after the leakage, can also use identical principle to detect another switch valve.Concrete testing process can be periodic, also can be irregular, and the present invention does not do restriction at this.
Therefore, as shown in Figure 2, the alternative valve method of testing that the embodiment of the invention provides also comprises:
S106, open the second switch valve and close the first switch valve.
S107, the described temperature sensor of use obtain the temperature signal in the high-end valve outside.
S108, this temperature signal and described predetermined threshold value are compared, if greater than described predetermined threshold value, execution in step S109 then, otherwise execution in step S110.
S109, determine that described the first switch valve leaks in occurring.
S110, determine that interior leakage does not appear in described the first switch valve.
A kind of high-end valve method of testing that the embodiment of the invention provides can detect high-end valve automatically, in case switch valve leaks in occurring, the present invention just can get access to too high temperature signal and judge that corresponding switch valve leaks in occurring by the serviceability temperature sensor.Therefore, the present invention can detect valve in advance, when leaking within valve occurs, also can detect very soon in the appearance and leak, and can reduce the loss that interior leakage brings.
In the another kind of high-end valve method of testing that the embodiment of the invention provides, all right: when using described temperature sensor to obtain the temperature signal in the high-end valve outside, the use ultrasonic sensor obtains the speed air flow in the high-end valve outside and compares with the Second Threshold of presetting, if greater than described Second Threshold, determine that then corresponding switch valve leaks in occurring.
As shown in Figure 3, concrete steps can for:
S201, open the first switch valve and close the second switch valve.
S202, serviceability temperature sensor obtain the temperature signal in the high-end valve outside and use ultrasonic sensor to obtain the speed air flow in the high-end valve outside.
S203, judge this temperature signal whether greater than predetermined threshold value or described speed air flow greater than default Second Threshold, if so, execution in step S204 then, otherwise execution in step S205.
Obtain the method less stable that single parameter is judged: when temperature sensor damages, can't correctly obtain temperature signal.Because when interior leakage, high thermal current appears in the high-end valve outside, therefore can also use ultrasonic sensor that air velocity is detected.For the sensitivity that guarantees to detect, can take the judgment mode of "or", that is: in two kinds of judged results, as long as at least one judged result occurs be: the signal that gathers then can determine to occur interior leakage greater than predefined threshold value.
Because present embodiment has gathered temperature and two parameters of speed air flow simultaneously, and wherein any one parameter exceeds predefined threshold value, just can determine to occur interior leakage, therefore can Effective Raise Accuracy of Judgement and sensitivity.
S204, determine that described second switch valve leaks in occurring.
S205, determine that interior leakage does not appear in described second switch valve.
Certainly, in other embodiments of the invention, outer signal, switch valve state, temporal information and the judged result of high-end valve of obtaining can also be preserved.In actual applications, can use the mode of form that the information of preserving is sent in other equipment, such as display screen.
A kind of high-end valve method of testing that the embodiment of the invention provides can detect high-end valve automatically, in case switch valve leaks in occurring, the present invention just can get access to too high temperature signal and judge that corresponding switch valve leaks in occurring by the serviceability temperature sensor.Therefore, the present invention can detect valve in advance, when leaking within valve occurs, also can detect very soon in the appearance and leak, and can reduce the loss that interior leakage brings.
With respect to the embodiment of the method for front, the present invention also provides a kind of high-end valve testing device.
As shown in Figure 4, a kind of high-end valve testing device that the embodiment of the invention provides comprises: valve actuator 100, processor 200 and temperature sensor 300,
In order to guarantee security of operation, high-end valve often has two switch valves, when carrying out shutoff operation, two switch valves all cuts out, and when carrying out open operation, two switch valves is all opened.
It will be understood by those skilled in the art that, because heat power equipment inside presents the state of a kind of high pressure, high heat, therefore in case interior leakage event appears in high-end valve, the thermal current of heat power equipment inside will flow to the high-end valve outside, and air pressure and the temperature in the high-end valve outside are sharply raise.
Wherein, predetermined threshold value can be set and revise according to actual condition, and the present invention does not do restriction at this.
Certainly, within definite switch valve occurs, during leakage, can also use warning device to report to the police, and with this warning device as a part of the present invention.
In the first situation that switch valve 400 is opened and second switch valve 500 cuts out, the detection of leaking in can whether carrying out second switch valve 500.In like manner, in the situation that second switch valve 500 is opened and the first switch valve 400 cuts out, can leak in whether the first switch valve 400 and detect.Therefore, detect one of them switch valve whether in after the leakage, can also use identical principle to detect another switch valve.That is to say, temperature sensor 300 can also specifically be set to: when valve actuator 100 is opened second switch valve 500 and closed the first switch valve 400, obtain the temperature signal in the high-end valve outside for the treatment of device 200 this temperature signal and described predetermined threshold value are compared, greater than described predetermined threshold value the time, determine that described the first switch valve 400 leaks in occurring.
As shown in Figure 5, the another kind of high-end valve testing device that the embodiment of the invention provides, can also comprise: ultrasonic sensor 600, be used for when serviceability temperature sensor 200 obtains the temperature signal in the high-end valve outside, obtain the high-end valve outside speed air flow so that processor 200 described speed air flow and default Second Threshold are compared, greater than described Second Threshold the time, determine that corresponding switch valve leaks in occurring.
Obtain the method less stable that single parameter is judged: when temperature sensor damages, can't correctly obtain temperature signal.Because when interior leakage, high thermal current appears in the high-end valve outside, therefore can also use ultrasonic sensor that air velocity is detected.For the sensitivity that guarantees to detect, can take the judgment mode of "or", that is: in two kinds of judged results, as long as at least one judged result occurs be: the signal that gathers then can determine to occur interior leakage greater than predefined threshold value.
Because present embodiment has gathered temperature and two parameters of speed air flow simultaneously, and wherein any one parameter exceeds predefined threshold value, just can determine to occur interior leakage, therefore can Effective Raise Accuracy of Judgement and sensitivity.
As shown in Figure 5, the another kind of high-end valve testing device that the embodiment of the invention provides can also comprise: memory storage 700, outer signal, switch valve state, temporal information and the judged result of high-end valve that is used for obtaining preserved.
In actual applications, can use the mode of form that the information of preserving is sent in other equipment, such as display screen.
In actual applications, the fixed installation of a kind of high-end valve testing device provided by the present invention and high-end valve can be consisted of an integral body, this integral body is produced as the high-end valve of a kind of intelligence and use.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, and identical similar part is mutually referring to getting final product between each embodiment, and each embodiment stresses is difference with other embodiment.Especially, for device embodiment, because its basic simlarity is in embodiment of the method, so describe fairly simplely, relevant part gets final product referring to the part explanation of embodiment of the method.
Need to prove, in this article, relational terms such as the first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or sequentially between these entities or the operation.
The above only is the specific embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (11)
1. a high-end valve method of testing is characterized in that, comprising:
Open the first switch valve and close the second switch valve, the serviceability temperature sensor obtains the temperature signal in the high-end valve outside;
This temperature signal and predetermined threshold value are compared, if greater than described predetermined threshold value, determine that then described second switch valve leaks in occurring.
2. method according to claim 1 is characterized in that, also comprises:
Open the second switch valve and close the first switch valve, use described temperature sensor to obtain the temperature signal in the high-end valve outside;
This temperature signal and described predetermined threshold value are compared, if greater than described predetermined threshold value, determine that then described the first switch valve leaks in occurring.
3. method according to claim 1, it is characterized in that, also comprise: when using described temperature sensor to obtain the temperature signal in the high-end valve outside, the use ultrasonic sensor obtains the speed air flow in the high-end valve outside and compares with the Second Threshold of presetting, if greater than described Second Threshold, determine that then corresponding switch valve leaks in occurring.
4. the described method of any one in 3 according to claim 1 is characterized in that, also comprises:
Outer signal, switch valve state, temporal information and the judged result of high-end valve of obtaining preserved.
5. method according to claim 1 is characterized in that, also comprises: when leaking within definite valve occurs, report to the police.
6. a high-end valve testing device is characterized in that, comprising: valve actuator, processor and temperature sensor,
Described valve actuator is used for driving the valve opening and closing;
Described temperature sensor is used for when described valve actuator is opened the first switch valve and closed the second switch valve, obtains the temperature signal in the high-end valve outside;
Described processor is used for this temperature signal and predetermined threshold value are compared, if greater than described predetermined threshold value, determines that then described second switch valve leaks in occurring.
7. device according to claim 6, it is characterized in that, described temperature sensing implement body is set to: when described valve actuator is opened the second switch valve and closed the first switch valve, the temperature signal that obtains the high-end valve outside compares this temperature signal and described predetermined threshold value to be used for described processor, greater than described predetermined threshold value the time, determine that described the first switch valve leaks in occurring.
8. device according to claim 6, it is characterized in that, also comprise: ultrasonic sensor, be used for when using described temperature sensor to obtain the temperature signal in the high-end valve outside, obtain the high-end valve outside speed air flow so that described processor described speed air flow and default Second Threshold are compared, greater than described Second Threshold the time, determine that corresponding switch valve leaks in occurring.
9. the described device of any one in 8 according to claim 6 is characterized in that also comprise: memory storage, outer signal, switch valve state, temporal information and the judged result of high-end valve that is used for obtaining preserved.
10. device according to claim 6 is characterized in that, also comprises: warning device, when being used within definite valve occurs, leaking, report to the police.
11. the high-end valve of intelligence is characterized in that, comprises high-end valve testing device claimed in claim 6.
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| CN201110265571.4A CN102998062B (en) | 2011-09-08 | 2011-09-08 | A kind of valve method of testing, device and a kind of intelligent valve |
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| CN201110265571.4A CN102998062B (en) | 2011-09-08 | 2011-09-08 | A kind of valve method of testing, device and a kind of intelligent valve |
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| CN102998062B CN102998062B (en) | 2016-08-03 |
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| CN104913095A (en) * | 2015-04-10 | 2015-09-16 | 湖南鸿远高压阀门有限公司 | Control method and device for opening and closing based on composite valve |
| CN105092157A (en) * | 2014-05-04 | 2015-11-25 | 湖南鸿远高压阀门有限公司 | Power plant thermodynamic system valve inner leakage diagnosis method and system |
| CN109682539A (en) * | 2018-11-23 | 2019-04-26 | 国网天津市电力公司电力科学研究院 | The integrated valve leakage current tester of more measuring techniques |
| CN110585807A (en) * | 2019-09-23 | 2019-12-20 | 北京华科仪科技股份有限公司 | Self-cleaning high-temperature filtering system cleaning method and high-temperature filtering system thereof |
| CN112098001A (en) * | 2020-09-25 | 2020-12-18 | 三门核电有限公司 | Valve internal leakage detection method and device |
| CN112585407A (en) * | 2018-08-20 | 2021-03-30 | 金宝通有限公司 | Determining liquid circulation valve opening point |
| CN112836437A (en) * | 2021-03-05 | 2021-05-25 | 国家能源集团谏壁发电厂 | Thermal power generating unit valve internal leakage detection method |
| CN118009095A (en) * | 2024-04-10 | 2024-05-10 | 国能龙源环保有限公司 | Valve leakage on-line monitoring method, device, equipment and medium for desulfurization system |
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| CN105092157A (en) * | 2014-05-04 | 2015-11-25 | 湖南鸿远高压阀门有限公司 | Power plant thermodynamic system valve inner leakage diagnosis method and system |
| CN105092157B (en) * | 2014-05-04 | 2017-08-08 | 湖南鸿远高压阀门有限公司 | A kind of internal leakage of valve of thermodynamic system in power plant diagnostic method and diagnostic system |
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| CN112585407A (en) * | 2018-08-20 | 2021-03-30 | 金宝通有限公司 | Determining liquid circulation valve opening point |
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| CN109682539A (en) * | 2018-11-23 | 2019-04-26 | 国网天津市电力公司电力科学研究院 | The integrated valve leakage current tester of more measuring techniques |
| CN110585807A (en) * | 2019-09-23 | 2019-12-20 | 北京华科仪科技股份有限公司 | Self-cleaning high-temperature filtering system cleaning method and high-temperature filtering system thereof |
| CN112098001A (en) * | 2020-09-25 | 2020-12-18 | 三门核电有限公司 | Valve internal leakage detection method and device |
| CN112836437A (en) * | 2021-03-05 | 2021-05-25 | 国家能源集团谏壁发电厂 | Thermal power generating unit valve internal leakage detection method |
| CN118009095A (en) * | 2024-04-10 | 2024-05-10 | 国能龙源环保有限公司 | Valve leakage on-line monitoring method, device, equipment and medium for desulfurization system |
| CN118009095B (en) * | 2024-04-10 | 2024-07-09 | 国能龙源环保有限公司 | Valve leakage on-line monitoring method, device, equipment and medium for desulfurization system |
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| CN102998062B (en) | 2016-08-03 |
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