CN221056039U - Control effectiveness verification device for timing sequence electromagnetic valve of liquid oxygen kerosene engine test bed - Google Patents
Control effectiveness verification device for timing sequence electromagnetic valve of liquid oxygen kerosene engine test bed Download PDFInfo
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- CN221056039U CN221056039U CN202323184306.0U CN202323184306U CN221056039U CN 221056039 U CN221056039 U CN 221056039U CN 202323184306 U CN202323184306 U CN 202323184306U CN 221056039 U CN221056039 U CN 221056039U
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- electromagnetic valve
- test bed
- liquid oxygen
- indication assembly
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- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000003350 kerosene Substances 0.000 title claims abstract description 33
- 238000012795 verification Methods 0.000 title claims abstract description 23
- 238000004088 simulation Methods 0.000 claims abstract description 69
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Testing And Monitoring For Control Systems (AREA)
Abstract
The utility model discloses a control effectiveness verification device of a time sequence electromagnetic valve of a liquid oxygen kerosene engine test bed, which comprises a valve simulation and indication assembly, a voltage ammeter, a control cable interface, a digital quantity acquisition module and screen display equipment, wherein the valve simulation and indication assembly comprises a resistor and an indication lamp, the resistor and the indication lamp are connected in parallel, the voltage ammeter is connected with the valve simulation and indication assembly and is used for reading voltage and current passing through the valve simulation and indication assembly, the control cable interface is connected in parallel with two ends of the valve simulation and indication assembly, the digital quantity acquisition module is connected with the valve simulation and indication assembly in parallel and is used for recording voltage on-off time points of the valve simulation and indication assembly, and the screen display equipment is connected with the digital quantity acquisition module and is used for displaying states of the valve simulation and indication assembly. The utility model can effectively reduce the action times of the electromagnetic valve and reduce the influence of channel detection on the service life of the electromagnetic valve.
Description
Technical Field
The utility model relates to the technical field of test bed of liquid oxygen kerosene engine, in particular to a control effectiveness verification device of a timing sequence electromagnetic valve of the test bed of liquid oxygen kerosene engine.
Background
Before the test run of the liquid oxygen kerosene rocket engine is carried out, the test run platform needs to check a control cable loop of a channel of an electromagnetic valve on the engine, and meanwhile, check a time sequence control program of the electromagnetic valve. In the existing inspection method for the electromagnetic valve channel control cable loop and the electromagnetic valve time sequence control program, a control instruction is sent out by using a host control computer according to the programmed time sequence control program, an electromagnetic valve on an engine is enabled to act through a valve current acquisition control circuit board in a control cabinet, and the effectiveness and stability of the electromagnetic valve channel control cable loop and the electromagnetic valve time sequence control program are comprehensively judged by utilizing the acquired valve action recovery current. Because the electromagnetic valve needs to be operated for a plurality of times before and after the liquid oxygen kerosene engine test, the inspection method can increase the abrasion of internal devices of the electromagnetic valve, greatly reduce the service life of the electromagnetic valve, further cause the abnormality in the engine test process and influence the rocket engine ignition test.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide a control effectiveness verification device for a timing sequence electromagnetic valve of a liquid oxygen kerosene engine test bed.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a control effectiveness verification device of a timing electromagnetic valve of a liquid oxygen kerosene engine test bed, which comprises the following components:
the valve simulation and indication assembly comprises a resistor and an indicator lamp, wherein the resistor is connected with the indicator lamp in parallel;
The voltage ammeter is connected with the valve simulation and indication assembly and is used for reading the voltage and the current passing through the valve simulation and indication assembly;
The control cable interfaces are connected in parallel with the two ends of the valve simulation and indication assembly;
The digital quantity acquisition module is connected with the valve simulation and indication assembly in parallel and is used for recording the voltage on-off time point of the valve simulation and indication assembly;
And the screen display equipment is connected with the digital quantity acquisition module and used for displaying the state of the valve simulation and indication assembly.
The further technical scheme is as follows: and the resistance value of an equivalent resistor formed by connecting the resistor and the indicator lamp in parallel is equal to the resistance value of a time sequence electromagnetic valve resistor of a liquid oxygen kerosene engine test bed to be tested.
The further technical scheme is as follows: the resistor is a low-temperature drift resistor.
The further technical scheme is as follows: the voltage loop in the voltmeter is connected with the valve simulation and indication assembly in parallel, and the current loop in the voltmeter is connected with the valve simulation and indication assembly in series.
The further technical scheme is as follows: the control cable interface comprises a bus cable interface and a single cable interface, and the bus cable interface and the single cable interface both adopt aviation plug interfaces with the specification consistent with that of a test bed of a liquid oxygen kerosene engine to be tested.
The further technical scheme is as follows: the digital quantity acquisition module is connected with the screen display device through a RS-485 data interface.
The further technical scheme is as follows: and the digital quantity acquisition module and the screen display device are communicated by adopting a Modbus-RTU protocol.
The further technical scheme is as follows: the screen display device is a touch screen device with a storage function.
The further technical scheme is as follows: and a power supply for supplying power to the device.
The further technical scheme is as follows: the input voltage of the power supply is 220V.
Compared with the prior art, the utility model has the beneficial effects that: the control effectiveness verification device for the liquid oxygen kerosene engine test bed time sequence electromagnetic valve comprises a valve simulation and indication assembly, a voltage ammeter, a control cable interface, a digital quantity acquisition module and screen display equipment, wherein the valve simulation and indication assembly comprises a resistor and an indicator lamp, the resistor is connected with the indicator lamp in parallel, the voltage ammeter is connected with the valve simulation and indication assembly and is used for reading voltage and current passing through the valve simulation and indication assembly, the control cable interface is connected with two ends of the valve simulation and indication assembly in parallel, the digital quantity acquisition module is connected with the valve simulation and indication assembly in parallel and is used for recording voltage on-off time points of the valve simulation and indication assembly, and the screen display equipment is connected with the digital quantity acquisition module and is used for displaying states of the valve simulation and indication assembly. The valve simulation and indication assembly is used for detecting the time sequence electromagnetic valve of the test bed of the liquid oxygen kerosene engine instead of the time sequence electromagnetic valve of the liquid oxygen kerosene engine, so that the action frequency of the electromagnetic valve can be effectively reduced, the influence of channel detection on the service life of the electromagnetic valve is reduced, meanwhile, the voltage value and the current value of the valve simulation and indication assembly can be directly read by using the current voltmeter, the on-off state and the current voltage value of the electromagnetic valve control channel can be intuitively reflected by combining the indication lamp of the simulation assembly, the working state of the electromagnetic valve channel control cable loop can be directly judged, and in addition, the effectiveness of the time sequence action of the electromagnetic valve can be effectively detected by adopting the cooperation of the digital quantity acquisition module and the screen display equipment.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the present utility model so that the same may be more clearly understood, as well as to provide a better understanding of the present utility model with reference to the following detailed description of the preferred embodiments.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a control effectiveness verification device for a timing electromagnetic valve of a liquid oxygen kerosene engine test bed provided by an embodiment of the utility model;
Fig. 2 is a schematic diagram of a part of a circuit of a control validity verification device for a timing electromagnetic valve of a test bed of a liquid oxygen kerosene engine according to an embodiment of the present utility model.
Reference numerals
1. A valve simulation and indication assembly; 2. a voltmeter; 3. a control cable interface; 4. a digital quantity acquisition module; 5. a touch screen device; 6. and a power supply.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be understood that the terms "comprises" and "comprising," when used in this specification and claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As shown in fig. 1-2, the embodiment of the utility model provides a control validity verification device for a test bed time sequence electromagnetic valve of a liquid oxygen kerosene engine, which comprises a valve simulation and indication assembly 1, a voltmeter 2, a control cable interface 3, a digital quantity acquisition module 4 and screen display equipment, wherein the valve simulation and indication assembly 1 comprises a resistor and an indicator lamp, and preferably, the resistor is a low-temperature drift resistor. The resistor is connected in parallel with the indicator lamp. The voltmeter 2 is connected with the valve simulation and indication assembly 1 and is used for reading the voltage and the current passing through the valve simulation and indication assembly 1. The control cable interface 3 is connected in parallel with the two ends of the valve simulation and indication assembly 1. The digital quantity acquisition module 4 is connected with the valve simulation and indication assembly 1 in parallel and is used for recording the voltage on-off time point of the valve simulation and indication assembly 1. The screen display device is connected with the digital quantity acquisition module 4 and is used for displaying the state of the valve simulation and indication assembly 1.
Specifically, the resistance value of an equivalent resistor formed by parallel connection of the resistor and the indicator lamp is equal to the resistance value of a resistor of a test bed time sequence electromagnetic valve (for convenience of reading, hereinafter referred to as an electromagnetic valve in the inspection) of the liquid oxygen kerosene engine to be detected. The on-off state of the cable loop of the electromagnetic valve channel can be conveniently confirmed by simulating the electromagnetic valve electrifying process and lighting the indicator lamp. The voltmeter 2 reads the voltage and current through the valve analog and indication assembly 1 to ensure that the solenoid valve channel control cable loop voltage and current correspond to the solenoid valve operating current and voltage. The voltage loop and the valve simulation and indication assembly 1 in the voltage ammeter 2 are arranged in parallel, and the current loop and the valve simulation and indication assembly 1 in the voltage ammeter 2 are arranged in series. The voltage ammeter 2 and the valve simulation and indication assembly 1 are in one-to-one correspondence and are correspondingly connected. The control cable interface 3 comprises a bus cable interface and a single cable interface, and adopts an aviation plug interface with the specification consistent with that of a test bed of the liquid oxygen kerosene engine to be tested, so that the device can directly simulate a plurality of electromagnetic valves according to a control time sequence to carry out verification test, and of course, the single electromagnetic valve control cable loop can be subjected to verification test through the single cable interface, and the control interfaces are all connected in parallel with two ends of the valve simulation and indication assembly 1. The digital quantity acquisition module 4 is connected with the valve simulation and indication assembly 1 in parallel, records the voltage on-off time point of the valve simulation and indication assembly 1, and transmits the screen display equipment through the RS-485 data interface, and each digital quantity input port corresponds to the valve simulation and indication assembly 1 one by one. The screen display device is a touch screen device 5 with a storage function, the touch screen device 5 displays the states of the valve simulation and indication assemblies 1, is connected with the digital quantity acquisition module 4 through an RS-485 interface, records and stores the coil action time transmitted by the digital quantity acquisition module 4, and records the coil action time as an event file. The touch screen device 5 stores files that can be exported via its external USB interface. The correctness of the electromagnetic valve time sequence control program can be verified by combining the record file.
Further, the selected touch screen device 5 communicates with the digital quantity acquisition module 4 through a Modbus-RTU protocol, and after the digital quantity change read by the digital quantity acquisition module 4 is predefined as an event in the engineering file of the touch screen device 5, the event is recorded. And downloading the engineering file into the touch screen device 5, establishing communication between the touch screen device 5 and the digital quantity acquisition module 4, and sending a message to the touch screen device 5 by the digital quantity acquisition module 4 after the voltage at the two ends of the valve simulation and indication assembly 1 changes. After the touch screen device 5 reads the message sent by the digital quantity acquisition module 4, the digital quantity change of the valve simulation and indication assembly 1 can be recorded as an event according to the corresponding preset event and stored. And verifying the correctness of the time sequence control program of the electromagnetic valve according to the occurrence time of the event.
The valve simulation and indication assembly 1 is used for detecting the time sequence electromagnetic valve of the test bed of the liquid oxygen kerosene engine instead of the time sequence electromagnetic valve, so that the action frequency of the electromagnetic valve can be effectively reduced, the influence of channel detection on the service life of the electromagnetic valve is reduced, meanwhile, the voltage value and the current value of the valve simulation and indication assembly 1 can be directly read by utilizing the current voltmeter, the on-off state and the current voltage value of the electromagnetic valve control channel can be intuitively reflected by combining the indication lamp of the simulation assembly, the working state of the electromagnetic valve channel control cable loop can be directly judged, and in addition, the effectiveness of the time sequence action of the electromagnetic valve can be effectively detected by adopting the cooperation of the digital quantity acquisition module 4 and the screen display device.
As shown in fig. 2, the control validity verification device of the timing electromagnetic valve of the liquid oxygen kerosene engine test bed further comprises a power supply 6 for supplying power to the device, and the input voltage of the power supply 6 is 220V.
It should be noted that, when in actual use, the valve simulation and indication assembly 1, the voltmeter 2, the control cable interface 3, the digital quantity acquisition module 4, the screen display device and the power supply 6 are integrally installed in a control cabinet, a 220V ac power interface is arranged outside the cabinet, so that power supply is facilitated, and the power supply 6 is connected with the power interface.
As shown in fig. 1, in practical application, the specific function implementation process is as follows:
The electromagnetic valve interface cable is connected to the control cable interface 3 outside the cabinet according to the electromagnetic valve channel configuration of the engine test bed, and an external 220V alternating current power supply is connected to supply power to the device. The cabinet external panel is provided with a power supply indicator lamp, a digital quantity acquisition module 4 power supply indicator lamp and a touch screen device 5 power supply indicator lamp, so that the power supply state of each main device in the device can be conveniently and rapidly judged.
When executing the automatic program of the action of the electromagnetic valve on the engine, the engine test bed runs a preset time sequence control program, and meanwhile, the upper computer of the test bed starts to collect and store, and the valve current collection circuit in the test bed control cabinet starts to collect. The control voltage signals are sent by different electromagnetic valve control channels of the test bed control cabinet according to a time sequence control program, and the control voltage signals pass through a valve current acquisition circuit in the control cabinet, so that the valve simulation and indication assembly 1 of the device acts, and the action of the valve simulation and indication assembly is equivalent to the action of an electromagnetic valve. At the moment, the indicator lamp in the valve simulation and indication assembly 1 is turned on or off according to a time sequence action program, and the electromagnetic valve channel can intuitively respond to control the on-off of a cable loop.
When the valve simulation and indication components 1 in the device act according to the voltage signals sent by the test bed control cabinet, the voltage ammeter 2 corresponding to each valve simulation and indication component 1 simultaneously displays the voltages at the two ends of each valve simulation and indication component 1 and the current value flowing through the same. Meanwhile, a valve current acquisition circuit in the test bed control cabinet also acquires loop current, and whether the current values acquired by the voltmeter 2 and the valve current acquisition circuit are equal or not is compared, so that the correctness of the valve current acquisition circuit can be verified.
When the valve simulation and indication assembly 1 in the device acts according to the voltage signal sent by the test bed control cabinet, the digital quantity acquisition modules 4 connected in parallel to the two ends of the valve simulation and indication assembly 1 read the voltage change, and write the state into the corresponding register addresses of the digital quantity acquisition modules 4.
The method comprises the steps that an engineering file is pre-established in the touch screen device 5, device register address state values in the digital quantity acquisition module 4 are compiled into corresponding trigger events, the state values in register addresses of the digital quantity acquisition module 4 are read through a Modbus-RTU protocol, and when the address values of the registers in the digital quantity acquisition module 4 change, the touch screen device 5 records the corresponding register state values as preset events and stores the occurrence time of the recorded events. Meanwhile, the test bed upper computer stores the current time sequence file acquired by the valve current acquisition circuit in the test bed control cabinet.
After the time sequence control program is finished, comparing the event file led out by the touch screen device 5 with the current time sequence file collected by the valve current collecting circuit in the control cabinet stored by the test bed upper computer, and judging the correctness of the time sequence control program.
According to the current value acquired by the valve current acquisition circuit in the control cabinet, the current value displayed by the current voltmeter can be detected and verified to judge whether the current value in the control channel of the electromagnetic valve meets the requirements of the control cabinet. The voltage values at the two ends of the valve simulation and indication assembly 1 can be obtained through ohm's law, and whether the voltage values applied to the two ends of the electromagnetic valve control channel meet the control requirement can be judged by combining the voltage values displayed in the current voltmeter.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. Control effectiveness verification device of liquid oxygen kerosene engine test bed time sequence solenoid valve, its characterized in that includes:
the valve simulation and indication assembly comprises a resistor and an indicator lamp, wherein the resistor is connected with the indicator lamp in parallel;
The voltage ammeter is connected with the valve simulation and indication assembly and is used for reading the voltage and the current passing through the valve simulation and indication assembly;
The control cable interfaces are connected in parallel with the two ends of the valve simulation and indication assembly;
The digital quantity acquisition module is connected with the valve simulation and indication assembly in parallel and is used for recording the voltage on-off time point of the valve simulation and indication assembly;
And the screen display equipment is connected with the digital quantity acquisition module and used for displaying the state of the valve simulation and indication assembly.
2. The control effectiveness verification device for the liquid oxygen kerosene engine test bed time sequence electromagnetic valve according to claim 1, wherein the resistance of an equivalent resistor formed by connecting the resistor and the indicator lamp in parallel is equal to the resistance of the liquid oxygen kerosene engine test bed time sequence electromagnetic valve resistor to be tested.
3. The control effectiveness verification device for the liquid oxygen kerosene engine test bed time sequence electromagnetic valve according to claim 1, wherein the resistor is a low-temperature drift resistor.
4. The control effectiveness verification device for the liquid oxygen kerosene engine test bed time sequence electromagnetic valve according to claim 1, wherein a voltage loop in the voltmeter is arranged in parallel with the valve simulation and indication assembly, and a current loop in the voltmeter is arranged in series with the valve simulation and indication assembly.
5. The control validity verification device for the timing electromagnetic valve of the liquid oxygen kerosene engine test bed according to claim 1, wherein the control cable interface comprises a bus cable interface and a single cable interface, and the bus cable interface and the single cable interface both adopt aviation plug interfaces with the specification consistent with that of the liquid oxygen kerosene engine test bed to be tested.
6. The control effectiveness verification device for the liquid oxygen kerosene engine test bed time sequence electromagnetic valve is characterized in that the digital quantity acquisition module is connected with the screen display device through an RS-485 data interface.
7. The control validity verification device for the timing electromagnetic valve of the liquid oxygen kerosene engine test bed of claim 6, wherein the digital quantity acquisition module and the screen display device communicate by using a Modbus-RTU protocol.
8. The control effectiveness verification device for the liquid oxygen kerosene engine test bed time sequence electromagnetic valve according to claim 1, wherein the screen display device is a touch screen device with a storage function.
9. The control effectiveness verification device for a timing solenoid valve of a liquid oxygen kerosene engine test bed of claim 1, further comprising a power supply for supplying power to the device.
10. The control validity verification device for the liquid oxygen kerosene engine test bed time sequence electromagnetic valve according to claim 9, wherein the input voltage of the power supply is 220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323184306.0U CN221056039U (en) | 2023-11-24 | 2023-11-24 | Control effectiveness verification device for timing sequence electromagnetic valve of liquid oxygen kerosene engine test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323184306.0U CN221056039U (en) | 2023-11-24 | 2023-11-24 | Control effectiveness verification device for timing sequence electromagnetic valve of liquid oxygen kerosene engine test bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221056039U true CN221056039U (en) | 2024-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323184306.0U Active CN221056039U (en) | 2023-11-24 | 2023-11-24 | Control effectiveness verification device for timing sequence electromagnetic valve of liquid oxygen kerosene engine test bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221056039U (en) |
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2023
- 2023-11-24 CN CN202323184306.0U patent/CN221056039U/en active Active
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