CN213063689U - High-pressure interruption system and steam turbine generator set - Google Patents
High-pressure interruption system and steam turbine generator set Download PDFInfo
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- CN213063689U CN213063689U CN202021160304.1U CN202021160304U CN213063689U CN 213063689 U CN213063689 U CN 213063689U CN 202021160304 U CN202021160304 U CN 202021160304U CN 213063689 U CN213063689 U CN 213063689U
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Abstract
The utility model discloses a high pressure interdiction system and steam turbine generating set, wherein the high pressure interdiction system is arranged in the oil pressure of uninstallation oil extraction pipeline in the steam turbine, and the high pressure interdiction system includes intermediate line, interdiction subassembly, forced induction spare and data recording device. The first interface of the first interceptor valve group is connected with the oil discharge pipeline, the second interface of the first interceptor valve group is connected with one end of the middle pipeline, the third interface of the second interceptor valve group is connected with the other end of the middle pipeline, and the fourth interface of the second interceptor valve group is connected with the oil return pipeline. The pressure sensing piece is arranged in the middle pipeline, and the data recording device is connected with the pressure sensing piece through an electric signal. The utility model discloses can be under unmanned on duty's state the oil pressure state of middle pipeline of real-time recording, can in time know the trouble detail of high-pressure interdiction system through the pressure state that inquiry data recording device recorded, the high-pressure interdiction system troubleshooting of being convenient for.
Description
Technical Field
The utility model relates to a thermal power equipment technical field, in particular to high pressure interdiction system and steam turbine generator set.
Background
The steam turbine is the core equipment of thermal power generation. The operation of the steam turbine needs high-pressure safety oil, and the shutdown and the startup of the steam turbine are accompanied by the pressure rise and fall of the high-pressure safety oil. In the steam turbine generator set, a high-pressure cutoff device is arranged to unload the pressure of the safety oil, and the high-pressure cutoff device is high in action safety, good in reliability and high in pressure unloading speed.
The safety oil loop of the steam turbine generator set comprises an oil discharge pipeline and an oil return pipeline, and two throttling holes are arranged between the oil discharge pipeline and the oil return pipeline, so that the oil pressure of the safety oil loop is ensured. The high-pressure cutoff device comprises a plurality of cutoff valve groups, and the cutoff valve groups are connected with pipelines on two sides of the throttling hole so as to cross the throttling hole and communicate the oil discharge pipeline and the oil return pipeline, so that the pressure of the safety oil is quickly unloaded. However, since the high-pressure blocking device has many components, when the block valve group fails, it is difficult to determine the specific failed component.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high pressure interdiction system and steam turbine generating set aims at solving among the prior art high pressure interdiction system's part many, leads to being difficult to the technical problem who judges trouble part.
In order to achieve the above object, the utility model provides a high pressure interdiction system for oil pressure between oil extraction pipeline and the oil return line in the uninstallation steam turbine, high pressure interdiction system includes:
an intermediate pipeline;
the first interface of the first interceptor valve group is connected with the oil discharge pipeline, the second interface of the first interceptor valve group is connected with one end of the intermediate pipeline, the third interface of the second interceptor valve group is connected with the other end of the intermediate pipeline, and the fourth interface of the second interceptor valve group is connected with the oil return pipeline;
the pressure sensing piece is arranged on the intermediate pipeline and used for measuring the oil pressure of the intermediate pipeline;
and the data recording device is in electrical signal connection with the pressure sensing piece and is used for recording the pressure data sensed by the pressure sensing piece.
Optionally, the high-pressure blocking system further includes an integrated block, a first pressure switch, a first pipeline, a second pressure switch, and a second pipeline, the intermediate pipeline is disposed in the integrated block, the first pressure switch is connected to the intermediate pipeline through the first pipeline, and the second pressure switch is connected to the intermediate pipeline through the second pipeline;
the pressure sensing piece is connected with the first pipeline or the second pipeline;
the interrupter assembly is disposed on the manifold block.
Optionally, the pressure sensing member is a pressure transmitter.
Optionally, the high pressure blocking system further includes an induction pipeline, a first valve and a second valve, one end of the induction pipeline is connected to the intermediate pipeline, the other end of the induction pipeline is connected to the pressure transmitter, and the first valve and the second valve are disposed on the induction pipeline.
Optionally, the interrupter assembly comprises two sets of the first interrupter valve set arranged in parallel and two sets of the second interrupter valve set arranged in parallel.
Optionally, the first shutoff valve group comprises a first solenoid valve and a first cartridge valve, a first oil path interface of the first solenoid valve is connected with the oil discharge line, and a second oil path interface of the first solenoid valve is connected with a control interface of the first cartridge valve;
a third oil way interface of the first cartridge valve is connected with the oil drainage pipeline, and a fourth oil way interface of the first cartridge valve is connected with one end of the middle pipeline;
when the first electromagnetic valve is in a conducting state, a control interface of the first cartridge valve is conducted with the oil discharge pipeline, so that a third oil path interface and a fourth oil path interface of the first cartridge valve are conducted;
the second shutoff valve group comprises a second electromagnetic valve and a second cartridge valve, a first oil path interface of the second electromagnetic valve is connected with the oil discharge line, and a second oil path interface of the second electromagnetic valve is connected with a control interface of the second cartridge valve;
a third oil way interface of the second cartridge valve is connected with an intermediate pipeline, and a fourth oil way interface of the second cartridge valve is connected with the oil return pipeline;
when the second electromagnetic valve is in a conducting state, the control interface of the second cartridge valve is conducted with the oil discharge pipeline, so that the third oil path interface and the fourth oil path interface of the second cartridge valve are conducted.
Optionally, the high voltage interruption system further comprises an alarm device, and the alarm device is in electrical signal connection with the data recording device;
the data recording device is provided with a data monitoring module, a preset pressure is preset on the data recording device, the data monitoring module compares the pressure of the middle pipeline with the preset pressure in real time, and when the pressure of the middle pipeline deviates from the preset pressure, the data recording device triggers an alarm device.
Optionally, the data recording device is a digital electro-hydraulic control system.
Optionally, the data logging device is a secondary meter.
The utility model also provides a steam turbine generator set, including aforementioned high pressure interdiction system.
The utility model discloses technical scheme can real-time measurement intermediate line's oil pressure through the forced induction piece that adopts, and data recording device then can take notes the measured data of forced induction piece at any time, consequently, can be under unmanned on duty's state the oil pressure state of recording intermediate line in real time, and the state of each shutoff valves on the shutoff subassembly then can be reacted to middle oil pressure state, thereby can be through the pressure state that inquiry data recording device recorded, in time know the trouble detail of high pressure shutoff system, be convenient for high pressure shutoff system troubleshooting.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of the structure of an embodiment of the subject matter of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the present subject matter.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a high pressure interdiction system for oil pressure between oil extraction pipeline 8 and the oil return line 9 in the uninstallation steam turbine. As shown in fig. 1, the high pressure interrupt system includes an intermediate conduit 1, an interrupt assembly, a pressure sensing element 3 and a data logging device 4. One end of the intermediate pipeline 1 is connected with the oil discharge pipeline 8 through a first throttling hole 51, and the other end of the intermediate pipeline 1 is connected with the oil return pipeline 9 through a second throttling hole 52. The interdiction assembly comprises a first interdiction valve group 21 and a second interdiction valve group 22, a first interface of the first interdiction valve group 21 is connected with the oil drainage pipeline 8, a second interface of the first interdiction valve group 21 is connected with one end of the middle pipeline 1, and in the first interdiction valve group 21, the first interdiction valve group 21 can control and conduct the first interface and the second interface, so that the oil drainage pipeline 8 is communicated with the middle pipeline 1. A third interface of the second interrupter valve group 22 is connected to the other end of the intermediate pipeline 1, a fourth interface of the second interrupter valve group 22 is connected to the oil return pipeline 9, and the second interrupter valve group 22 can control the third interface and the fourth interface to be communicated, so that the intermediate pipeline 1 is communicated with the oil return pipeline 9. When the first blocking valve group 21 and the second blocking valve group 22 are simultaneously conducted, the oil discharge pipeline 8 conducts the intermediate pipeline 1, and the intermediate pipeline 1 conducts the oil return pipeline 9, so that the oil discharge pipeline 8 conducts the oil return pipeline 9, high-pressure oil on the oil discharge pipeline 8 can be quickly discharged from the oil return pipeline 9, and oil pressure can be quickly unloaded.
In a high pressure shut-off system, two valves for controlling the relief pressure are provided, which are inherently very safe and can be used for a long time, but can still malfunction during long-term use and are more easily ignored due to their very high safety, thus resulting in a major accident due to negligence of minor malfunctions. In this embodiment, the pressure sensor 3 is disposed in the intermediate pipe 1 and is configured to measure the oil pressure of the intermediate pipe 1. And the data recording device 4 is electrically connected with the pressure sensing element 3 and is used for recording pressure data sensed by the pressure sensing element. Pressure-sensitive part 3 can the real-time measurement intermediate line 1's oil pressure, and data recording device 4 then can record the data that pressure-sensitive part 3 measured at any time, consequently, can be under unmanned on duty's state record intermediate line 1's oil pressure state in real time, and intermediate oil pressure state then can reflect the state of each shutoff valves on the shutoff subassembly to can in time discover the trouble detail of high pressure shutoff system through the pressure state of inquiry data recording device 4 record, be convenient for the troubleshooting.
For example, when nobody is in a watch, first shutoff valves 21 in the high pressure shutoff system leaks oil, pressure sensing component 3 measures the pressure of intermediate line 1 in real time, and data logging device 4 can record the pressure of intermediate line 1, through inquiry pressure data, can discover specific fault time, the pressure change during the trouble, know through the inquiry that the oil pressure of intermediate line 1 when the trouble is higher than the normal value, then can tentatively think that first shutoff valves 21 or first orifice 51 breaks down, thereby in time discover the trouble and get rid of the trouble.
In some optional embodiments, as shown in fig. 1, the high pressure interrupt system further includes a manifold (not shown), a first pressure switch 61, a first pipeline 62, a second pressure switch 71, and a second pipeline 72, the intermediate pipeline 1 is disposed in the manifold, the interrupt assembly is disposed on the manifold, the first pressure switch 61 is connected to the intermediate pipeline 1 through the first pipeline 62, the first pipeline 62 is connected to the intermediate pipeline 1, the second pressure switch 71 is connected to the intermediate pipeline 1 through the second pipeline 72, the second pipeline 72 is connected to the intermediate pipeline 1, and the second pipeline 72 is connected to the intermediate pipeline 1. Because the intermediate pipeline 1 is arranged in the integrated block, the intermediate pipeline 1 is concealed in the integrated block, and the difficulty of directly connecting the intermediate pipeline 1 is increased. In this embodiment, the first pressure switch 61 is external, and is connected with the intermediate pipeline 1 through the first pipeline 62, the pressure sensing part 3 is connected with the first pipeline 62, and the pressure sensing part 3 obtains the oil pressure data of the intermediate pipeline 1 by measuring the oil pressure in the first pipeline 62. In this embodiment, the pressure sensing member 3 is connected to the first pipeline 62, so that the oil pressure of the intermediate pipeline 1 is indirectly measured, the change of the original high-pressure interruption system is the change of the first pipeline 62, the integrated block and the pipeline in the integrated block do not need to be changed, the change of the original high-pressure interruption system is small, and the production and design cost of the high-pressure interruption system of this embodiment is greatly reduced.
Of course, in this embodiment, the pressure sensing member 3 can also be connected to the second pipeline 72, and the same technical effect as that of the first pipeline 62 can be achieved.
In some alternative embodiments, the pressure sensing member 3 is a pressure transmitter.
In some further embodiments, as shown in fig. 1, the high pressure cutoff system further includes a sensing pipeline 31, a first valve (not shown) and a second valve (not shown), one end of the sensing pipeline 31 is connected to the intermediate pipeline 1, the other end of the sensing pipeline 31 is connected to the pressure transmitter, and the first valve and the second valve are disposed on the sensing pipeline 31.
The high pressure interrupt system further includes a three-way valve (not shown) disposed on the first pipeline 62 or the second pipeline 72, the sensing pipeline 31 is connected to the three-way valve, and the sensing pipeline 31 is communicated with the first pipeline 62 or the second pipeline 72 through the three-way valve.
In some alternative embodiments, the data recording device 4 is a digital electro-hydraulic control system. The pressure sensing part 3 is connected with an analog quantity input terminal in a digital electro-hydraulic control system, and the digital electro-hydraulic control system records the oil pressure of the middle pipeline 1.
When the digital electro-hydraulic control system is connected with the alarm device 10, preset pressure is input into the digital electro-hydraulic control system, the digital electro-hydraulic control system monitors the oil pressure of the intermediate pipeline 1, and when the oil pressure of the intermediate pipeline 1 deviates from the preset pressure, the digital electro-hydraulic control system can trigger the alarm device 10. Therefore, an operator can know the oil pressure condition of the intermediate pipeline 1 in real time, know that the high-pressure blocking system has faults at the highest speed, avoid the faults from causing the high-pressure oil pressure change of the oil exhaust pipeline 8, respond to the faults at the highest speed and remove the faults, and avoid the influence on the steam turbine generator set.
In some embodiments, the data recording device 4 is a secondary meter, and in particular, the data recording device 4 is a terminal capable of receiving analog and recording analog signals.
In some alternative embodiments, as shown in fig. 1 and 2, the interrupter assembly includes two sets of first interrupter valve groups 21 arranged in parallel and two sets of second interrupter valve groups 22 arranged in parallel.
Specifically, the first interfaces of the two first block-out valve sets 21 are connected with the oil discharge pipeline 8, and the second interfaces of the two first block-out valve sets 21 are connected with one end of the middle pipeline 1; the third interfaces of the two second interceptor valve sets 22 are connected with the other end of the intermediate pipeline 1, and the second interfaces of the two second interceptor valve sets 22 are connected with the oil return pipeline 9.
The oil discharge pipeline 8 is connected with one end of the intermediate pipeline 1 through two groups of first interceptor valve sets 21 which are connected in parallel, and the oil return pipeline 9 is connected with the other end of the intermediate pipeline 1 through two groups of second interceptor valve sets 22 which are connected in parallel.
Thus, in this embodiment, at least one of the two first interrupter valve sets 21 and at least one of the two second interrupter valve sets 22 are required to trigger oil drainage. At least one first interrupter valve group 21 and at least one second interrupter valve group 22 are required to be triggered and conducted simultaneously, and therefore the anti-false touch performance is high. Any one of the two sets of first breaking valve groups 21 can trigger the first breaking valve group 21 to be conducted, and any one of the two sets of second breaking valve groups 22 can trigger the second breaking valve group 22 to be conducted, so that even if one of the two sets of first breaking valve groups 21 fails and one of the two sets of second breaking valve groups 22 fails, the high-pressure breaking system can still work, and the high failure prevention performance is achieved.
In some optional embodiments, as shown in fig. 1 and fig. 2, the first shutoff valve group 21 includes a first solenoid valve 211 and a first cartridge valve 212, a first oil port AA of the first solenoid valve 211 is connected to the oil discharge line 8, and a second oil port B of the first solenoid valve 211 is connected to a control port E of the first cartridge valve 212. The third oil passage port C of the first cartridge valve 212 is connected to the oil discharge passage 8, and the fourth oil passage port D of the first cartridge valve 212 is connected to one end of the intermediate passage 1. When the first electromagnetic valve 211 is in a conducting state, the control interface E of the first cartridge valve 212 is conducted with the oil discharge pipeline 8, so that the third oil path interface C and the fourth oil path interface D of the first cartridge valve 212 are conducted.
The second shutoff valve group 22 includes a second solenoid valve 221 and a second cartridge valve 222, a first oil passage port a of the second solenoid valve 221 is connected to the oil discharge passage 8, and a second oil passage port B of the second solenoid valve 221 is connected to a control port E of the second cartridge valve 222. The third oil passage port C of the second cartridge valve 222 is connected to the other end of the intermediate line 1, and the fourth oil passage port D of the second cartridge valve 222 is connected to the return line 9. When the second electromagnetic valve 221 is in a conducting state, the control interface E of the second cartridge valve 222 is conducted with the oil discharge pipeline 8, so that the third oil path interface C of the second cartridge valve 222 is conducted with the fourth oil path interface D.
The third oil passage port C of the first cartridge valve 212 is the first port, and the fourth oil passage port D of the first cartridge valve 212 is the second port; the third oil passage port C of the second cartridge 222 is the third port, and the fourth oil passage port D of the second cartridge 222 is the fourth port.
In some optional embodiments, the high voltage interrupting system further comprises an output device electrically connected to the data recording device 4, specifically, the output device is an oscilloscope, a display screen, or the like, and the recorded data is displayed through the display device, so that the recorded result is simpler and clearer.
In some alternative embodiments, as shown in fig. 2, the high voltage interrupt system further comprises an alarm device 10, the alarm device 10 being in electrical signal connection with the data logging device 4. The data recording device 4 is provided with a data monitoring module, a preset pressure is preset on the data monitoring module, the data monitoring module monitors the recorded pressure of the middle pipeline 1 in real time, the pressure of the middle pipeline 1 recorded by the data recording device 4 is compared with the preset pressure, and when the pressure of the middle pipeline 1 deviates from the preset pressure, the data recording device 4 triggers the alarm device 10.
When the preset pressure is a range pressure and the intermediate line 1 pressure deviates from the preset range pressure, the shutoff unit fails or the first throttle hole 51 and the second throttle hole 52 fail.
In the embodiment, by implementing the pressure sensing element 3, the data recording device 4 and the alarm device 10, the pressure sensing element 3 measures the oil pressure of the intermediate pipeline 1, the data recording device 4 records the oil pressure of the intermediate pipeline 1 and compares the recorded oil pressure with the preset oil pressure, so as to monitor the oil pressure of the intermediate pipeline 1 in real time, when the oil pressure of the intermediate pipeline 1 deviates from the preset oil pressure, the alarm device 10 is triggered, and the oil pressure of the intermediate pipeline 1 changes, probably because the first blocking valve group 21 or the second blocking valve group 22 leaks oil and the throttling aperture of the first throttling hole 51 or the second throttling hole 52 changes, so that an operator can know that the high-pressure blocking system generates faults in real time at the fastest speed, the faults can be prevented from causing the high-pressure oil pressure change of the oil discharge pipeline 8, the operator can respond to the faults and remove the faults at the fastest speed, and the safety of the high-pressure blocking system is avoided, resulting in long-term operator inattention to the high-pressure trip system, which can accumulate as a major accident.
The utility model provides a steam turbine generating set, including aforementioned high pressure interdiction system. The specific structure of the high-voltage interruption system refers to the above-mentioned embodiments, and since the high-voltage interruption system adopts all technical solutions of all the above-mentioned embodiments, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are achieved, and no further description is given here.
The above is only the optional embodiment of the present invention, and not therefore the scope of the present invention is limited, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the application directly/indirectly in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A high pressure trip system for unloading oil pressure between an oil drain line and an oil return line in a steam turbine, the high pressure trip system comprising:
an intermediate pipeline;
the first interface of the first interceptor valve group is connected with the oil discharge pipeline, the second interface of the first interceptor valve group is connected with one end of the intermediate pipeline, the third interface of the second interceptor valve group is connected with the other end of the intermediate pipeline, and the fourth interface of the second interceptor valve group is connected with the oil return pipeline;
the pressure sensing piece is arranged on the intermediate pipeline and used for measuring the oil pressure of the intermediate pipeline;
and the data recording device is in electrical signal connection with the pressure sensing piece and is used for recording the pressure data sensed by the pressure sensing piece.
2. The high pressure interrupt system of claim 1, further comprising a manifold, a first pressure switch, a first conduit, a second pressure switch, and a second conduit, the intermediate conduit disposed within the manifold, the first pressure switch coupled to the intermediate conduit via the first conduit, the second pressure switch coupled to the intermediate conduit via the second conduit;
the pressure sensing piece is connected with the first pipeline or the second pipeline;
the interrupter assembly is disposed on the manifold block.
3. The high pressure interrupt system of claim 1 or claim 2, wherein the pressure sensing element is a pressure transducer.
4. The high pressure interrupt system of claim 3, further comprising a sense line, a first valve, and a second valve, wherein one end of the sense line is coupled to the intermediate line and the other end of the sense line is coupled to the pressure transmitter, and wherein the first valve and the second valve are disposed on the sense line.
5. The high pressure trip system of claim 1, wherein the trip assembly includes two sets of the first trip valve block arranged in parallel and two sets of the second trip valve block arranged in parallel.
6. The high pressure trip system of claim 5, wherein the first trip valve block includes a first solenoid valve and a first cartridge valve, a first oil passage interface of the first solenoid valve being connected to the drain line, a second oil passage interface of the first solenoid valve being connected to a control interface of the first cartridge valve;
a third oil way interface of the first cartridge valve is connected with the oil drainage pipeline, and a fourth oil way interface of the first cartridge valve is connected with one end of the middle pipeline;
when the first electromagnetic valve is in a conducting state, a control interface of the first cartridge valve is conducted with the oil discharge pipeline, so that a third oil path interface and a fourth oil path interface of the first cartridge valve are conducted;
the second shutoff valve group comprises a second electromagnetic valve and a second cartridge valve, a first oil path interface of the second electromagnetic valve is connected with the oil discharge line, and a second oil path interface of the second electromagnetic valve is connected with a control interface of the second cartridge valve;
a third oil way interface of the second cartridge valve is connected with an intermediate pipeline, and a fourth oil way interface of the second cartridge valve is connected with the oil return pipeline;
when the second electromagnetic valve is in a conducting state, the control interface of the second cartridge valve is conducted with the oil discharge pipeline, so that the third oil path interface and the fourth oil path interface of the second cartridge valve are conducted.
7. The high voltage interrupt system of claim 1, further comprising an alarm device in electrical signal communication with the data logging device;
the data recording device is provided with a data monitoring module, a preset pressure is preset on the data recording device, the data monitoring module compares the pressure of the middle pipeline with the preset pressure in real time, and when the pressure of the middle pipeline deviates from the preset pressure, the data recording device triggers an alarm device.
8. The high pressure trip system of claim 1, wherein the data logging device is a digital electro-hydraulic control system.
9. The high voltage interrupt system of claim 1, wherein the data logging device is a secondary instrument.
10. A steam turbine power plant comprising a high pressure trip system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021160304.1U CN213063689U (en) | 2020-06-19 | 2020-06-19 | High-pressure interruption system and steam turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021160304.1U CN213063689U (en) | 2020-06-19 | 2020-06-19 | High-pressure interruption system and steam turbine generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213063689U true CN213063689U (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021160304.1U Expired - Fee Related CN213063689U (en) | 2020-06-19 | 2020-06-19 | High-pressure interruption system and steam turbine generator set |
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| Country | Link |
|---|---|
| CN (1) | CN213063689U (en) |
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2020
- 2020-06-19 CN CN202021160304.1U patent/CN213063689U/en not_active Expired - Fee Related
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