CN113638809B - Emergency breaking device for heavy combustion engine - Google Patents
Emergency breaking device for heavy combustion engine Download PDFInfo
- Publication number
- CN113638809B CN113638809B CN202110844663.1A CN202110844663A CN113638809B CN 113638809 B CN113638809 B CN 113638809B CN 202110844663 A CN202110844663 A CN 202110844663A CN 113638809 B CN113638809 B CN 113638809B
- Authority
- CN
- China
- Prior art keywords
- oil
- cartridge valve
- cartridge
- valve
- shutoff
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/26—Control of fuel supply
- F02C9/46—Emergency fuel control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
Abstract
The present disclosure provides a critical interruption device of a heavy combustion engine, comprising: the emergency shutoff device comprises a pressure oil inlet, a shutoff oil inlet, a device oil outlet, a control electromagnetic valve, a shutoff cartridge valve, a shutoff oil inlet and a device oil outlet, wherein the shutoff cartridge valve is connected with the control electromagnetic valve; when the control solenoid valve acts, a control signal is output, and the control solenoid valve is used for controlling the pressure oil to be introduced or discharged through the shutoff cartridge valve according to the control signal; the interdiction cartridge valve is used for opening or closing a connecting loop between an interdiction oil inlet and a device oil outlet according to a control signal, can effectively avoid misoperation and refusal action caused by single electromagnetic valve faults, greatly improves the operation safety and the operation stability of the emergency interdiction device, and effectively improves the reliability of the emergency interdiction device.
Description
Technical Field
The utility model relates to a heavy gas turbine generating set control protection system technical field especially relates to an emergency trip device of heavy combustion engine.
Background
When the heavy-duty gas turbine has critical working conditions during operation and needs to be shut down by breaking, the protection system sends a trip signal, and the critical breaking device interlocks a hydraulic actuating mechanism of the fuel air inlet valve to quickly close the fuel air inlet valve and cut off an air source, so that the gas turbine unit is quickly tripped and shut down.
In the related art, a heavy-duty gas turbine emergency shutoff device generally adopts a pressure relief mode, and the fuel valve is closed quickly by quickly relieving the shutoff oil pressure. The common combustion engine shutoff device generally adopts a mode of a solenoid valve or a solenoid valve combination, and generally has a single-relief valve mode, a four-out two-relief control loop mode and a multi-relief valve mode according to different system designs.
In these systems, malfunction and actuation are likely to occur, and the reliability of the emergency shutdown device is low.
Disclosure of Invention
The present disclosure is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the present disclosure is directed to provide an emergency trip device for a heavy-duty combustion engine, which can effectively avoid false operation and false operation caused by a single solenoid valve failure, greatly improve the operation safety and the operation stability of the emergency trip device, and effectively improve the reliability of the emergency trip device.
In order to achieve the above object, an embodiment of the present disclosure provides a critical shutoff device for a heavy combustion engine, including: the device comprises a pressure oil inlet, an obstruction oil inlet, a device oil outlet, a control solenoid valve, an obstruction cartridge valve connected with the control solenoid valve, a connection loop formed between the obstruction oil inlet and the device oil outlet, and a device oil outlet connected with an oil return port of an external oil supply device, wherein the pressure oil inlet is connected with an oil supply port of the oil supply device, the oil supply device supplies pressure oil to the emergency obstruction device through the pressure oil inlet, and the control solenoid valve moves under the action of the pressure oil; when the control solenoid valve acts, a control signal is output, and the control solenoid valve is used for controlling the pressure oil to be introduced or discharged through the shutoff cartridge valve according to the control signal; and the shutoff cartridge valve is used for opening or closing a connecting loop between the shutoff oil inlet and the device oil outlet according to the control signal.
The emergency shutoff device of the heavy-duty gas turbine provided by the embodiment of the disclosure is characterized in that a pressure oil inlet, a shutoff oil inlet, a device oil outlet, a control solenoid valve and a shutoff cartridge valve connected with the control solenoid valve are configured, the pressure oil inlet is connected with an oil supply port of the oil supply device, the oil supply device supplies pressure oil to the emergency shutoff device through the pressure oil inlet, the control solenoid valve moves under the action of the pressure oil, when the control solenoid valve moves, a control signal is output, the control solenoid valve is used for controlling the pressure oil to be introduced or discharged through the shutoff cartridge valve according to the control signal, and the shutoff cartridge valve is used for opening or closing a connecting loop between the shutoff oil inlet and the device oil outlet according to the control signal, so that false movement and rejection caused by single solenoid valve faults can be effectively avoided, the operation safety and the operation stability of the emergency shutoff device are greatly improved, and the reliability of the emergency shutoff device is effectively improved.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a critical interruption device of a heavy combustion engine according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a critical shutoff device of a heavy-duty combustion engine according to another embodiment of the disclosure;
FIG. 3 is a schematic illustration of the trip principle of the interrupter cartridge valve according to another embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a control solenoid controlled shutoff cartridge according to another embodiment of the present disclosure;
FIG. 5 is a schematic diagram of the power supply of the control solenoid valve according to another embodiment of the present disclosure;
fig. 6 is a schematic flow chart of the online check of the control solenoid valve according to another embodiment of the disclosure.
Detailed Description
Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of illustrating the present disclosure and should not be construed as limiting the same. Rather, the embodiments of the disclosure include all changes, modifications and equivalents coming within the spirit and terms of the claims appended thereto.
Fig. 1 is a schematic structural diagram of a critical shutoff device of a heavy combustion engine according to an embodiment of the present disclosure.
Referring to fig. 1, the critical interruption device 10 of a heavy combustion engine includes: the device comprises a pressure oil inlet 11, an obstruction oil inlet 12, a device oil outlet 13, a control solenoid valve 14, an obstruction cartridge valve 15 connected with the control solenoid valve 14, a connection loop formed between the obstruction oil inlet 12 and the device oil outlet 13, and the device oil outlet 13 connected with an oil return port of an external oil supply device.
The pressure oil inlet 11 is connected to an oil supply port of an oil supply device, the oil supply device supplies pressure oil to the emergency shutdown device 10 through the pressure oil inlet 11, and the control solenoid valve 14 operates under the action of the pressure oil.
When the control electromagnetic valve 14 acts, a control signal is output, the control electromagnetic valve 14 is used for controlling pressure oil to be introduced or discharged through the shutoff cartridge valve 15 according to the control signal, and the shutoff cartridge valve 15 is used for opening or closing a connecting loop between the shutoff oil inlet 12 and the device oil outlet 13 according to the control signal.
In the embodiment of the present disclosure, a combination of a control solenoid valve and an interruption cartridge valve may be adopted, and a control signal is used to perform on-off control on a connection loop between the interruption oil inlet 12 and the device oil outlet 13 (wherein, when the connection loop is controlled to be opened, the connection loop is indicated to be conducted, and when the connection loop is controlled to be closed, the connection loop is indicated to be not conducted), so as to further control the oil pressure of the interruption oil, thereby effectively avoiding the interruption device from generating a malfunction event or a touch event, and effectively increasing the speed of pressure relief of the interruption oil, thereby improving the interruption effect of the emergency interruption device.
In an embodiment of the present disclosure, referring to fig. 2, fig. 2 is a schematic structural diagram of a critical interruption device of a heavy duty combustion engine according to another embodiment of the present disclosure, where the critical interruption device 10 of the heavy duty combustion engine further includes: and an inlet orifice 17 connected to the pressure oil inlet 11, for leading out a part of the pressure oil from the pressure oil inlet 11 to the operating oil passage, so as to control the shutoff cartridge 15 via the part of the pressure oil.
In one embodiment of the present disclosure, referring to FIG. 2, the shutoff cartridge 15 comprises: the control solenoid valve 14 includes a first blocking cartridge 1501, a second blocking cartridge 1502, a third blocking cartridge 1503, a fourth blocking cartridge 1504, a fifth blocking cartridge 1505, and a sixth blocking cartridge 1506: a first control solenoid valve 1401, a second control solenoid valve 1402, and a third control solenoid valve 1403.
In one embodiment of the present disclosure, referring to FIG. 2, a first control solenoid 1401 controls the actuation oil paths associated with a first shutoff cartridge 1501 and a second shutoff cartridge 1502, respectively; the second control solenoid valve 1402 controls the operation oil passages connected to the third shutoff cartridge 1503 and the fourth shutoff cartridge 1504, respectively; the third control solenoid valve 1403 controls the operation fluid passages connected to the fifth shutoff cartridge 1505 and the sixth shutoff cartridge 1506, respectively.
In one embodiment of the present disclosure, referring to fig. 2, the first oil inlet of the first interceptor cartridge valve 1501, the third oil inlet of the third interceptor cartridge valve 1503, and the fifth oil inlet of the fifth interceptor cartridge valve 1505 are connected to the interceptor oil inlet 12, respectively.
In one embodiment of the present disclosure, referring to fig. 2, the first discharge port of the first shutoff cartridge 1501 is connected to the fourth intake port of the fourth shutoff cartridge 1504; a third oil discharge port of the third interceptor cartridge valve 1503 is connected with a sixth oil inlet of a sixth interceptor cartridge valve 1506; the fifth drain port of the fifth shutoff cartridge 1505 is connected to the second inlet port of the second shutoff cartridge 1502.
In one embodiment of the present disclosure, referring to FIG. 2, the fourth drain port of the fourth shutoff cartridge 1504, the sixth drain port of the sixth shutoff cartridge 1506, and the second drain port of the second shutoff cartridge 1502 are each connected to the device drain port 13.
The aforesaid links to each other 3 control solenoid valves, 6 interdiction cartridge valves, interdiction oil inlet 12 and device oil drain port 13 and forms 3 mutually independent action oil circuit, thereby can avoid effectively because of the maloperation and the refusal action that single control solenoid valve trouble leads to, simultaneously, in the embodiment of the present disclosure, when adopting the form that control solenoid valve-interdiction cartridge valve combines, can also dispose interdiction cartridge valve's latus rectum and be far greater than control solenoid valve, and dispose its rapid action, can also dispose interdiction cartridge valve of different sizes of emergency interdiction device nimble ground, make emergency interdiction device can be applicable to high-pressure oil system promptly, also be applicable to low-pressure oil system, thereby emergency interdiction device's suitability has been ensured effectively.
As shown in fig. 3, fig. 3 is a schematic diagram illustrating a trip principle of the interrupter cartridge valve according to another embodiment of the disclosure. A first trip oil drainage circuit is formed by connecting a first interceptor cartridge valve 1501 and a fourth interceptor cartridge valve 1504 in series, and when the first interceptor cartridge valve 1501 and the fourth interceptor cartridge valve 1504 are simultaneously conducted, trip oil is conducted with drainage oil so as to drain the trip oil; or the fifth interceptor cartridge 1505 and the second interceptor cartridge 1502 are connected in series to form a second trip oil drainage circuit, and when the fifth interceptor cartridge 1505 and the second interceptor cartridge 1502 are simultaneously conducted, the trip oil is conducted to the drain oil to drain the trip oil; or the third interceptor cartridge valve 1503 and the sixth interceptor cartridge valve 1506 are connected in series to form a third trip oil drainage circuit, and when the third interceptor cartridge valve 1503 and the sixth interceptor cartridge valve 1506 are simultaneously conducted, trip oil is conducted with the discharged oil so as to drain the trip oil.
In one embodiment of the present disclosure, referring to fig. 3, orifices are connected in parallel with each shutoff cartridge, wherein the orifices are used for diagnostics and online testing to place shutoff oil in the trip oil drain circuit in a flowing condition. As shown in fig. 3, first blocking cartridge 1501 is connected in parallel with first orifice 3011, second blocking cartridge 1502 is connected in parallel with second orifice 3012, third blocking cartridge 1503 is connected in parallel with third orifice 3013, fourth blocking cartridge 1504 is connected in parallel with fourth orifice 3014, fifth blocking cartridge 1505 is connected in parallel with fifth orifice 3015, and sixth blocking cartridge 1506 is connected in parallel with sixth orifice 3016.
In one embodiment of the present disclosure, referring to fig. 3, a first pressure transducer 3021 is connected between the first discharge port of the first shutoff cartridge 1501 and the fourth intake port of the fourth shutoff cartridge 1504; a second pressure transmitter 3022 is connected between the fifth drain port of the fifth shutoff cartridge 1505 and the second inlet port of the second shutoff cartridge 1502; a third pressure transmitter 3023 is connected between the third drain port of the third shutoff cartridge 1503 and the sixth oil inlet port of the sixth shutoff cartridge 1506.
In one embodiment of the present disclosure, referring to fig. 3, the present disclosure proposes a critical shutoff device of a heavy combustion engine, further comprising: checking means for checking a first pressure value of the first pressure transmitter 3021, a second pressure value of the second pressure transmitter 3022, a third pressure value of the third pressure transmitter 3023, a first energization state of the first control solenoid valve 1401, a second energization state of the second control solenoid valve 1402, a third energization state of the third control solenoid valve 1403, and on-off states of the six shutoff cartridges 1501 to 1506, respectively; the first pressure value, the second pressure value, the third pressure value, the first electrifying state, the second electrifying state, the third electrifying state and the opening and closing state are jointly used for carrying out fault detection aiming at the emergency cutoff device.
The inspection device may be connected to each of the interceptor cartridges in a data communication manner, that is, each of the interceptor cartridges may transmit its own energization state to the inspection device, and the inspection device receives the energization state of each of the interceptor cartridges, or the inspection device may directly obtain the energization state of each of the interceptor cartridges from the overall control device side of the critical interceptor, in addition, the inspection device may transmit its own pressure value to the inspection device and receive its pressure value from the inspection device, or the inspection device may directly obtain the pressure value of each of the pressure transmitters from the overall control device side of the critical interceptor, without limitation.
In the disclosed embodiment, different oil pressure changes of the first pressure transmitter 3021, the second pressure transmitter 3022 and the third pressure transmitter 3023 may indicate different energization states of the shutoff cartridge. As shown in table 1, table 1 is a schematic diagram of a corresponding relationship between a pressure value of a pressure transmitter and an energization state of a shutoff cartridge valve in the embodiment of the present disclosure, where table 1 shows:
TABLE 1
As shown in table 1, in the first trip oil drain circuit, the display pressure of the first pressure transmitter 3021 is marked as a first pressure value, and when neither the first blocking cartridge 1501 nor the fourth blocking cartridge 1504 is open, since the flow areas of the first orifice 3011 and the fourth orifice 3014 are equal, the first pressure value will be equal to 1/2 of the pressure of the trip oil; when the first interceptor cartridge 1501 is conducting and the fourth interceptor cartridge 1504 is not conducting, the first pressure value will be equal to the pressure in front of the first interceptor cartridge 1501, i.e., equal to the trip oil pressure; when the first shutoff cartridge 1501 is closed and the fourth shutoff cartridge 1504 is open, the first pressure value will equal the pressure behind the fourth shutoff cartridge 1504, i.e., the drain pressure; when the first and fourth break cartridge valves 1501, 1504 are simultaneously conducting, the first pressure value will characterize the process of rapidly reducing the trip oil from high pressure to drain pressure, i.e., the first pressure value will rapidly reduce from trip oil pressure to drain pressure.
Similarly, in the second trip oil drain circuit, the display pressure of the second pressure transmitter 3022 is marked as a second pressure value, which is equal to 1/2 of the pressure of the trip oil when neither the fifth interceptor cartridge valve 1505 nor the second interceptor cartridge valve 1502 is conductive; when the fifth interrupter cartridge 1505 is conductive and the second interrupter cartridge 1502 is not, the second pressure value will be equal to the trip oil pressure; when fifth shutoff cartridge 1505 is closed and second shutoff cartridge 1502 is open, the second pressure value will equal the drain pressure; when the fifth shutoff cartridge 1505 and the second shutoff cartridge 1502 are simultaneously open, the second pressure value will quickly decrease from the trip oil pressure to the drain pressure.
In the third trip oil drain circuit, the display pressure flag of the third pressure transmitter 3023 is a third pressure value, which is equal to 1/2 of the pressure of the trip oil when neither the third interceptor cartridge 1503 nor the sixth interceptor cartridge 1506 is conductive; when the third interceptor cartridge 1503 is conductive and the sixth interceptor cartridge 1506 is non-conductive, the third pressure value will be equal to the trip oil pressure; when the third shutoff cartridge 1503 is closed and the sixth shutoff cartridge 1506 is open, the third pressure value will equal the drain pressure; when the third interceptor cartridge 1503 and the sixth interceptor cartridge 1506 are simultaneously turned on, the third pressure value is rapidly reduced from the trip oil pressure to the drain port pressure.
Fig. 4 is a schematic diagram of a control solenoid shutoff cartridge according to another embodiment of the present disclosure, in which, as shown in fig. 4, pressure oil passes through a pressure oil inlet 11 and an inlet orifice 17 to serve as control oil for the shutoff cartridge, and three paths of control oil pass through control ports of a first control solenoid 1401, a second control solenoid 1402, and a third control solenoid 1403, respectively, to a first shutoff cartridge 1501, a second shutoff cartridge 1502, a third shutoff cartridge 1503, a fourth shutoff cartridge 1504, a fifth shutoff cartridge 1505, and a sixth shutoff cartridge 1506, respectively. When the first control solenoid valve 1401, the second control solenoid valve 1402 and the third control solenoid valve 1403 are in a power-off state, the oil paths of the solenoid valves are in the positions shown in fig. 4, that is, the control oil of the first blocking cartridge valve 1501, the second blocking cartridge valve 1502, the third blocking cartridge valve 1503, the fourth blocking cartridge valve 1504, the fifth blocking cartridge valve 1505 and the sixth blocking cartridge valve 1506 is led to the device oil drain port 13, the blocking cartridge valves are in an open state, the blocking oil is communicated with the drain oil, and the state is an engine trip state; on the contrary, when the first control solenoid valve 1401, the second control solenoid valve 1402 and the third control solenoid valve 1403 are in an energized state, the oil path state position of the solenoid valves is an upper valve position state of the position shown in fig. 4, the control oil of the first interceptor cartridge valve 1501, the second interceptor cartridge valve 1502, the third interceptor cartridge valve 1503, the fourth interceptor cartridge valve 1504, the fifth interceptor cartridge valve 1505 and the sixth interceptor cartridge valve 1506 is led to the interceptor oil inlet 12, the interceptor cartridge valves are in a closed position under the action of the pressure oil inlet 11, and the interceptor oil inlet 12 and the device oil outlet 13 are in a disconnected state, and the state is a normal operation state of the internal combustion engine.
Two states of the first control solenoid valve 1401, the second control solenoid valve 1402 and the third control solenoid valve 1403 determine the open or closed state of the tripped oil drain circuit, and when the first control solenoid valve 1401 and the second control solenoid valve 1402 are simultaneously de-energized, the first tripped oil drain circuit is opened; when the first control solenoid valve 1401 and the third control solenoid valve 1403 are simultaneously de-energized, the second trip oil drain circuit is opened; when the third control solenoid valve 1403 and the second control solenoid valve 1402 are simultaneously de-energized, the third trip oil drain circuit is opened. Therefore, only when more than two control solenoid valves of the first control solenoid valve 1401, the second control solenoid valve 1402 and the third control solenoid valve 1403 are simultaneously de-energized, the trip oil loop is opened, and the trip oil is drained, so that the malfunction or action rejection caused by the failure of a single solenoid valve is effectively avoided, and the operation stability of the emergency cutoff device is ensured.
By combining the state of the shutoff cartridge valve and the corresponding control relationship of the control solenoid valve to the shutoff cartridge valve with the pressure and shutoff cartridge valve state corresponding relationship table of table 1, the corresponding relationship of the first, second, and third control solenoid valves 1401, 1402, and 1403 and the first, second, and third pressure transmitters 3021, 3022, and 3023 can be derived, as shown in table 2 below, which shows an indication of the relationship between the energization state of the control solenoid valve and the pressure value of the pressure transmitter: (setting the shutoff oil pressure P and the discharge oil pressure 0)
TABLE 2
| Control the power-on condition of the electromagnetic valve | |
|
|
| 1401. 1402, 1403 full energization | P/2 | P/2 | P/2 |
| 1401. 1402 Power on, 1403 Power off | P/2 | |
0 |
| 1401. 1403 powered on and 1402 powered off | 0 | P/2 | 0 |
| 1402. 1403 power-on, 1401 power-off | P | 0 | P/2 |
| 1401. 1402 off power, 1403 on |
0 | 0 | |
| 1401. 1403 powered off, 1402 powered on | |
0 | 0 |
| 1402. 1403 is powered off, 1401 is powered on | 0 | |
0 |
| 1401. 1402, 1403 full power off | 0 | 0 | 0 |
According to the corresponding relation of the states of the pressure transmitter, the control solenoid valve and the shutoff cartridge valve in the tables 1 and 2, the on-line detection and fault diagnosis function can be realized.
Wherein, the online inspection function can be realized by independently supplying power to the control solenoid valve, and fig. 5 is a schematic diagram of the power supply of the control solenoid valve according to another embodiment of the disclosure. As shown in fig. 5, power reliability can be ensured by supplying power using a direct current power supply, a positive power supply bus is labeled 401, a negative power supply bus is labeled 402, and a current storage diode 4031, 4032, 4033 can be connected in parallel at a coil of a control solenoid valve; the on/off of the first control solenoid valve 1401, the second control solenoid valve 1402, and the third control solenoid valve 1403 is controlled by a first switch 4041, a second switch 4042, and a third switch 4043, respectively.
The heavy duty engine critical shutoff device in the embodiment of the present disclosure may perform online check when the engine normally operates, as shown in fig. 6, fig. 6 is a schematic flow chart of online check of a control solenoid valve according to another embodiment of the present disclosure, a single first control solenoid valve 1401, a single second control solenoid valve 1402, and a single third control solenoid valve 1403 may be respectively energized, then, oil pressures of a first pressure transmitter 3021, a second pressure transmitter 3022, or a third pressure transmitter 3023 may be checked, values of the first pressure transmitter 3021, the second pressure transmitter 3022, and the third pressure transmitter 3023 may be a basis of a check judgment result, and according to table 2, whether the check oil pressure is normal or not may be checked. Wherein, to every control solenoid's outage inspection, can wait for corresponding pressure transmitter oil pressure to resume normal back, just trigger the outage inspection of carrying out next control solenoid, three control solenoid all examines after succeeding, judges that the whole inspection to the critical interruption device is successful, if first pressure transmitter 3021, second pressure transmitter 3022 or third pressure transmitter 3023's oil pressure has unusually, the critical interruption device will send alarm signal to remind operating personnel troubleshooting.
In the embodiment of the disclosure, by configuring a pressure oil inlet, an interruption oil inlet, a device oil discharge port, a control solenoid valve, an interruption cartridge valve connected to the control solenoid valve, and connecting the pressure oil inlet with an oil supply port of an oil supply device, the oil supply device provides pressure oil to an emergency interruption device via the pressure oil inlet, the control solenoid valve generates an action under the action of the pressure oil, and outputs a control signal when the control solenoid valve generates an action, the control solenoid valve is used for controlling the pressure oil to be introduced or discharged via the interruption cartridge valve according to the control signal, and the interruption cartridge valve is used for opening or closing a connection loop between the interruption oil inlet and the device oil discharge port according to the control signal, thereby effectively avoiding false action and rejection caused by a single solenoid valve fault, greatly improving the operation safety and the operation stability of the emergency interruption device, and effectively improving the reliability of the emergency interruption device.
It should be noted that, in the description of the present disclosure, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present disclosure, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present disclosure includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present disclosure.
It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present disclosure may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present disclosure have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present disclosure, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present disclosure.
Claims (9)
1. A critical interruption device for a heavy combustion engine, comprising: a pressure oil inlet, an obstruction oil inlet, a device oil outlet, a control solenoid valve, an obstruction cartridge valve connected with the control solenoid valve, a connecting loop formed between the obstruction oil inlet and the device oil outlet, the device oil outlet is connected with an oil return port of an external oil supply device, wherein,
the pressure oil inlet is connected with an oil supply port of the oil supply device, the oil supply device supplies pressure oil to the emergency shutoff device through the pressure oil inlet, and the control electromagnetic valve acts under the action of the pressure oil;
when the control solenoid valve acts, a control signal is output, and the control solenoid valve is used for controlling the pressure oil to be introduced or discharged through the shutoff cartridge valve according to the control signal;
the shutoff cartridge valve is used for opening or closing the connecting loop between the shutoff oil inlet and the device oil outlet according to the control signal;
the shutoff cartridge valve includes: first interdiction cartridge valve, second interdiction cartridge valve, third interdiction cartridge valve, fourth interdiction cartridge valve, fifth interdiction cartridge valve and sixth interdiction cartridge valve, the control solenoid valve includes: a first control solenoid valve, a second control solenoid valve, a third control solenoid valve, wherein,
the first control electromagnetic valve controls an action oil path which is respectively connected with the first interceptor cartridge valve and the second interceptor cartridge valve;
the second control electromagnetic valve controls an action oil path which is respectively connected with the third interceptor cartridge valve and the fourth interceptor cartridge valve;
and the third control electromagnetic valve controls an action oil path which is respectively connected with the fifth intercepting cartridge valve and the sixth intercepting cartridge valve.
2. The critical trip device of claim 1, wherein the device further comprises: an inlet orifice connected to the pressure oil inlet, wherein,
the inlet orifice is used for leading out partial pressure oil from the pressure oil input from the pressure oil inlet to the operating oil path so as to control the shutoff cartridge valve through the partial pressure oil;
and the control electromagnetic valve is used for controlling the partial pressure oil to be introduced or discharged through the shutoff cartridge valve according to the control signal.
3. The critical trip device of claim 1, wherein,
the first oil inlet of the first interceptive cartridge valve, the third oil inlet of the third interceptive cartridge valve and the fifth oil inlet of the fifth interceptive cartridge valve are respectively connected with the interceptive oil inlet.
4. The critical trip device of claim 3, wherein,
a first oil outlet of the first interceptor cartridge valve is connected with a fourth oil inlet of the fourth interceptor cartridge valve;
a third oil discharge port of the third interceptive cartridge valve is connected with a sixth oil inlet of the sixth interceptive cartridge valve;
and a fifth oil discharge port of the fifth interceptive cartridge valve is connected with a second oil inlet of the second interceptive cartridge valve.
5. The critical shutoff device according to claim 4, wherein the fourth drain port of the fourth shutoff cartridge, the sixth drain port of the sixth shutoff cartridge, and the second drain port of the second shutoff cartridge are each connected to the device drain port.
6. The critical trip device of claim 5, wherein the device further comprises:
a first pressure transmitter is connected between a first oil outlet of the first interceptor cartridge valve and a fourth oil inlet of the fourth interceptor cartridge valve;
a second pressure transmitter is connected between a fifth oil outlet of the fifth interceptor cartridge valve and a second oil inlet of the second interceptor cartridge valve;
and a third pressure transmitter is connected between a third oil outlet of the third interceptor cartridge valve and a sixth oil inlet of the sixth interceptor cartridge valve.
7. The critical trip device of claim 6, wherein,
the first interdiction cartridge valve and the fourth interdiction cartridge valve are connected in series to form a first tripping oil drainage loop, and when the first interdiction cartridge valve and the fourth interdiction cartridge valve are conducted simultaneously, tripping oil is conducted with drainage oil so as to drain the tripping oil; or
The fifth intercepting cartridge valve and the second intercepting cartridge valve are connected in series to form a second tripping oil drainage loop, and when the fifth intercepting cartridge valve and the second intercepting cartridge valve are conducted simultaneously, tripping oil is conducted with drainage oil so as to drain the tripping oil; or
And when the third interruption cartridge valve and the sixth interruption cartridge valve are simultaneously switched on, the tripping oil and the oil discharge are switched on so as to enable the tripping oil to drain.
8. The critical trip device of claim 7, wherein the device further comprises:
and the throttling holes are connected with the shutoff cartridge valves in parallel, and are used for diagnosis and online test so as to enable the shutoff oil in the trip oil drainage circuit to be in a flowing state.
9. The critical trip device of claim 7, wherein the device further comprises:
the verifying device is used for verifying a first pressure value of the first pressure transmitter, a second pressure value of the second pressure transmitter, a third pressure value of the third pressure transmitter, a first electrification state of the first control solenoid valve, a second electrification state of the second control solenoid valve, a third electrification state of the third control solenoid valve and an opening and closing state of the shutoff cartridge valve;
the first pressure value, the second pressure value, the third pressure value, the first power-on state, the second power-on state, the third power-on state, and the on-off state are jointly used for fault detection of the emergency trip device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110844663.1A CN113638809B (en) | 2021-07-26 | 2021-07-26 | Emergency breaking device for heavy combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110844663.1A CN113638809B (en) | 2021-07-26 | 2021-07-26 | Emergency breaking device for heavy combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113638809A CN113638809A (en) | 2021-11-12 |
| CN113638809B true CN113638809B (en) | 2022-11-18 |
Family
ID=78418321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110844663.1A Active CN113638809B (en) | 2021-07-26 | 2021-07-26 | Emergency breaking device for heavy combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113638809B (en) |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1594316A (en) * | 1968-11-28 | 1970-06-01 | ||
| US4335577A (en) * | 1980-06-19 | 1982-06-22 | Deere & Company | Hydraulic system having variable displacement pumps controlled by power beyond flow |
| DE59103692D1 (en) * | 1991-01-25 | 1995-01-12 | Asea Brown Boveri | Connection valve and hydraulic safety and power oil system in which the connection valve is used. |
| JP3786524B2 (en) * | 1998-08-18 | 2006-06-14 | 株式会社東芝 | Steam valve control device |
| FR2818692B1 (en) * | 2000-12-22 | 2003-08-01 | Snecma Moteurs | HYDROMECHANICAL MOTOR OVERSPEED LIMITATION SYSTEM |
| JP3706552B2 (en) * | 2001-07-09 | 2005-10-12 | 三菱重工業株式会社 | Single axis combined plant |
| CN201902264U (en) * | 2010-12-24 | 2011-07-20 | 沈阳黎明航空发动机(集团)有限责任公司 | Fuel regulation system of heavy combustion engine |
| CN102518485A (en) * | 2011-12-13 | 2012-06-27 | 中广核工程有限公司 | Tripping oil-return system for steam turbine for nuclear power station |
| CN103982249B (en) * | 2014-05-04 | 2017-07-04 | 上海汇益控制系统股份有限公司 | The emergency trip device of isolation experiment signal |
| JP6415973B2 (en) * | 2014-12-26 | 2018-10-31 | 株式会社東芝 | Turbine emergency control device |
| CN207609450U (en) * | 2017-12-06 | 2018-07-13 | 贵州鸭溪发电有限公司 | A kind of hydraulic pressure interrupting system for steam turbine |
| CN208793045U (en) * | 2018-06-07 | 2019-04-26 | 福建宁德核电有限公司 | A kind of Turbo-generator Set high pressure emergency trip module and experiement control device |
| CN210033541U (en) * | 2019-05-21 | 2020-02-07 | 南京汽轮电力科技有限公司 | Emergency trip device of steam turbine |
| CN209908577U (en) * | 2019-07-29 | 2020-01-07 | 德阳恒瑞液控技术有限公司 | High-voltage interruption module |
| CN211524912U (en) * | 2019-12-09 | 2020-09-18 | 新疆天业（集团）有限公司 | Safety device of steam turbine feed pump |
| CN211059452U (en) * | 2019-12-10 | 2020-07-21 | 上海创量流体控制设备有限公司 | Butterfly valve actuating mechanism safety interruption device and butterfly valve actuating mechanism thereof |
| CN212428961U (en) * | 2020-03-20 | 2021-01-29 | 宁波创力液压机械制造有限公司 | Emergency trip control mechanism of DEH system |
| CN111577406A (en) * | 2020-05-13 | 2020-08-25 | 东方电气自动控制工程有限公司 | Three-taking two-hydraulic shutoff protection device with online verification function |
-
2021
- 2021-07-26 CN CN202110844663.1A patent/CN113638809B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113638809A (en) | 2021-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7322270B2 (en) | Safety circuit for media-operated consumers and process for its operation | |
| US6155282A (en) | Two out of three voting solenoid arrangement | |
| CN107166081B (en) | A kind of pneumatic redundant system of butterfly valve and its control method for rocket launching water spray | |
| WO2021223778A1 (en) | Electronic expansion valve failure detection method and device for multi-split air conditioner, and air conditioner | |
| US10480346B2 (en) | Hydraulic control device for an emergency stop valve of a steam turbine and steam turbine arrangement | |
| US7347050B2 (en) | Fuel metering unit | |
| CN113638809B (en) | Emergency breaking device for heavy combustion engine | |
| CN110593965B (en) | Main valve shutoff valve group, control method thereof and steam turbine | |
| CN205841927U (en) | A kind of emergency cut-off valve control system | |
| CN211524912U (en) | Safety device of steam turbine feed pump | |
| CN212716781U (en) | Steam turbine electron hypervelocity interdiction system with high fault-tolerant characteristic | |
| CN209908577U (en) | High-voltage interruption module | |
| CN110714839A (en) | Multi-oil-path aeroengine parking control system | |
| CN113738455A (en) | Protection system for overspeed protection of a turbomachine | |
| CN113027848A (en) | High-reliability electromagnetic valve control system | |
| CN211203066U (en) | Emergency stop control loop for steam valve of steam turbine | |
| CN215633171U (en) | Servo module for steam turbine speed regulation oil system | |
| CN111577406A (en) | Three-taking two-hydraulic shutoff protection device with online verification function | |
| JP4161130B2 (en) | Fault diagnosis processing method and fault diagnosis processing apparatus | |
| CN212177236U (en) | Steam turbine protection device integrating online verification | |
| CN212535787U (en) | Steam supply control assembly and steam turbine system | |
| CN217951965U (en) | Natural gas pressure regulating station fire alarm shutoff valve actuating mechanism control system | |
| CN216951920U (en) | Control device with ESD function | |
| CN219197413U (en) | Independently packaged turbine main protection on-line test valve group | |
| CN217735589U (en) | Steam turbine emergency trip and main valve control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |