CN213091823U - Test box for LGIP host fuel block - Google Patents
Test box for LGIP host fuel block Download PDFInfo
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- CN213091823U CN213091823U CN202021202833.3U CN202021202833U CN213091823U CN 213091823 U CN213091823 U CN 213091823U CN 202021202833 U CN202021202833 U CN 202021202833U CN 213091823 U CN213091823 U CN 213091823U
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Abstract
A test box for LGIP host fuel blocks comprises a direct current power supply module, a switch button, seven terminal tables, a power supply terminal table, five selective switches with lamps and an emergency stop button, wherein the direct current power supply module is connected with a 220V alternating current power supply through the power supply terminal table and converts the alternating current power supply into a 24V direct current power supply, and the emergency stop button is connected with the direct current power supply module and outputs direct current voltage for testing; the seven terminal tables are externally connected with a pressure switch to be tested, a pressure sensor, a first electric control valve, a second electric control valve and an electromagnetic valve respectively, and the five lamp selection switches are connected between the direct-current voltage and the corresponding terminal tables; the test box provides a direct current power supply through the direct current power supply module, the functional test on the fuel block is realized by switching on the switch button and each corresponding lamp selection switch, and the power supply is cut off through the emergency stop button when necessary so as to protect the safety of the test system. The utility model discloses a functional test to LGIP host computer fuel piece device before the assembly has ensured marine diesel engine's work safety.
Description
Technical Field
The utility model relates to a testing arrangement of marine low-speed dual-fuel diesel component, concretely relates to test box that is used for LGIP host computer fuel piece belongs to marine diesel technical field.
Background
The marine dual-fuel engine not only can use fuel oil as fuel, but also can use clean energy such as natural gas, liquefied petroleum gas and the like as second fuel. The MAN latest two-stroke diesel and lpg dual fuel engine is named ME-LGIP, the host is equipped with a new model of LGIP gas module. The LGIP gas module is provided with a pressure switch, a pressure sensor, a conventional first electrically controlled valve part, a second electrically controlled valve part which must work under certain pressure and a plurality of solenoid valves. To ensure the quality and safety of the gas block machine, the various valves, switches and devices on the fuel block must be functionally tested to confirm their proper performance prior to installation of the fuel block. There is no suitable testing equipment to perform performance testing of the components on the LGIP host fuel pieces.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a test box for LGIP host computer fuel piece carries out the functional test under hydraulic pressure state to each automatically controlled valve spare and sensor on the double-fuel marine engine LGIP host computer fuel piece to confirm its performance normal, thereby guarantee the installation back the fuel piece normally works on the host computer.
In order to achieve the above object, the technical solution of the present invention is as follows:
a test box for an LGIP host fuel block, the LGIP host fuel block comprises a pressure switch to be tested, a pressure sensor, a conventional first electrically controlled valve piece, a second electrically controlled valve piece working under pressure and a plurality of solenoid valves; the method is characterized in that: the test box include:
the power supply terminal table is externally connected with a 220V alternating current power supply;
the direct current power supply module is connected with the power supply terminal block and converts a 220V alternating current power supply into a 24V direct current power supply;
one end of the emergency stop button is connected with the direct-current power supply module, and the other end of the emergency stop button outputs conventional direct-current voltage;
the first terminal table is externally connected with a first tested electric control valve and internally connected with the conventional direct current voltage;
the second terminal table is externally connected with a second electric control valve to be tested;
the third terminal station, the fourth terminal station and the fifth terminal station are externally connected with a tested electromagnetic valve;
the sixth terminal table is externally connected with a tested pressure sensor and internally connected with the conventional direct current voltage, and an ammeter is connected to the sixth terminal table;
the seventh terminal table is externally connected with a tested pressure switch, the inner end of the seventh terminal table is connected with the conventional direct-current voltage, the other end of the seventh terminal table is connected with the second terminal table, and the seventh terminal table outputs special direct-current voltage to the second electric control valve piece through the second terminal table;
a first lamp-carrying selection switch, one end of which is connected with the conventional direct-current voltage and the other end of which is connected with the first terminal platform;
one end of the second lamp-provided selection switch is connected with the conventional direct-current voltage, and the other end of the second lamp-provided selection switch is connected with the second terminal block;
a third lamp-equipped selector switch, one end of which is connected with the conventional direct-current voltage and the other end of which is connected with the third terminal station;
a fourth lamp selection switch, one end of which is connected with the conventional direct current voltage and the other end of which is connected with the fourth terminal station;
a fifth lamp-equipped selection switch, one end of which is connected with the conventional direct-current voltage and the other end of which is connected with the fifth terminal platform;
one end of the switch button is connected with the conventional direct-current voltage, and the other end of the switch button is connected with the sixth terminal table;
the test box provides a direct current power supply for testing through the direct current power supply module, the functional test of the pressure switch, the pressure sensor, the first electric control valve piece, the second electric control valve piece and the electromagnetic valve is realized by switching on the switch button and each corresponding lamp selection switch, and the power supply is quickly cut off through the emergency stop button when necessary so as to protect the safety of the test system.
Further, the conventional direct current voltage and the special direct current voltage are both 24V direct current voltage.
Further, the ammeter is an LCD digital ammeter with 4-20 mA.
Furthermore, the emergency stop button is connected with the direct-current power supply module through a cable and an eighth terminal table so as to realize a remote control emergency stop protection function.
Furthermore, the first lamp selection switch, the second lamp selection switch, the third lamp selection switch, the fourth lamp selection switch and the fifth lamp selection switch respectively comprise a button and an indicator light, the button is connected with the conventional direct current voltage, the indicator light is connected with a zero line, and the indicator light is on when the button is pressed.
Further, the test box can simultaneously test the pressure switch, the pressure sensor, the first electric control valve, the second electric control valve and the plurality of electromagnetic valves, and can also respectively and independently test the pressure switch, the pressure sensor, the first electric control valve, the second electric control valve and the plurality of electromagnetic valves.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the test box has the functions of testing the electric control valve, the electromagnetic valve, the pressure switch and the pressure sensor on the gas block, and can find the performance defects of each device in time before the host is assembled so as to avoid the quality hidden trouble of the host;
2) the test box has an emergency stop protection function, and can quickly cut off a power supply in time under an emergency condition so as to protect the safety of a test system;
3) the test box can test multiple automatically controlled components and parts simultaneously, has improved test operation efficiency.
To sum up, LGIP host computer fuel piece's test box fully considered the test demand of each automatically controlled valve spare and sensor on the LGIP host computer fuel piece, realized the functional test to the fuel piece, ensured the safe and reliable work of marine low-speed dual-fuel diesel engine.
Drawings
Fig. 1 is a circuit diagram of a first embodiment of the present invention.
Fig. 2 is a partial circuit diagram of a second embodiment of the present invention.
In the figure, the position of the upper end of the main shaft,
t1-dc power supply module, P6-ammeter, S0-emergency stop button, S1-first band light selection switch, S2-second band light selection switch, S3-third band light selection switch, S4-fourth band light selection switch, S5-fifth band light selection switch, S6-switch button, X0-power supply terminal block, X1-first terminal block, X2-second terminal block, X3-third terminal block, X4-fourth terminal block, X5-fifth terminal block, X6-sixth terminal block, X7-seventh terminal block, X8-eighth terminal block.
Detailed Description
The following detailed description of the present invention is provided with reference to the accompanying drawings and examples, which should not be construed to limit the scope of the present invention.
The utility model is used for test LGIP host computer fuel piece, this LGIP host computer fuel piece is including the pressure switch, pressure sensor, the first automatically controlled valve part of conventional, the automatically controlled valve part of second and a plurality of solenoid valve that need work under pressure state that need test.
Example one
Referring to fig. 1, the test box includes a power terminal block X0, a dc power module T1, an emergency stop button S0, a first terminal block X1, a second terminal block X2, a third terminal block X3, a fourth terminal block X4, a fifth terminal block X5, a sixth terminal block X6, a seventh terminal block X7, a first strip lamp selection switch S1, a second strip lamp selection switch S2, a third strip lamp selection switch S3, a fourth strip lamp selection switch S4, a fifth strip lamp selection switch S5, and a switch button S6. The first strip lamp selecting switch S1, the second strip lamp selecting switch S2, the third strip lamp selecting switch S3, the fourth strip lamp selecting switch S4 and the fifth strip lamp selecting switch S5 respectively comprise a button and an indicator lamp.
An external 220VAC alternating current power supply is directly connected with one end of the power terminal block X0, the other end of the power terminal block X0 is connected with the direct current power supply module T1, and the direct current power supply module T1 converts the 220V alternating current power supply into a 24V direct current power supply for detection; one end of the emergency stop button S0 is connected with the DC power supply module T1, and the other end outputs a conventional DC voltage which is 24V DC voltage.
The first terminal block X1 is externally connected to a first electrically controlled valve element to be tested, ports 1 and 3 of the first terminal block X1 are internally connected to the direct current voltage (24VDC), and ports 2, 4 and 6 are connected to a zero line (0V); one end of the normally open contact button of the first strip lamp selector switch S1 is connected to the normal direct-current voltage (24VDC), the other end is connected to the port 5 of the first terminal block X1, one end of the indicator lamp of the first strip lamp selector switch S1 is connected to the neutral line (0V), and the other end is connected to the ports 5 and 7 of the first terminal block X1.
The second terminal block X2 is externally connected with a tested second electrically controlled valve element, and ports 2, 4 and 6 of the second terminal block X2 are internally connected with a zero line (0V); one end of the normally open contact button of the second lamp selection switch S2 is connected to the normal dc voltage (24VDC), the other end is connected to the port 5 of the second terminal block X2, one end of the indicator lamp of the second lamp selection switch S2 is connected to the neutral line (0V), and the other end is connected to the ports 5 and 7 of the second terminal block X2.
The seventh terminal block X7 is externally connected to a pressure switch to be tested, the port 1 of the seventh terminal block X7 is internally connected to the normal dc voltage (24VDC), the other port 2 is connected to the ports 1 and 3 of the second terminal block X2, and a dedicated dc voltage (24VDC) is output to the second electrically controlled valve element through the second terminal block X2, so that the second electrically controlled valve element is tested under pressure.
The third terminal station X3, the fourth terminal station X4 and the fifth terminal station X5 are respectively connected to tested solenoid valves, and the port 2 pairs of the third terminal station X3, the fourth terminal station X4 and the fifth terminal station X5 are connected to the neutral wire (0V); one end of a normally open contact button of each of the third strip lamp selection switch S3, the fourth strip lamp selection switch S4 and the fifth strip lamp selection switch S5 is connected to the conventional direct current voltage (24VDC), the other end of the normally open contact button is connected to the port 1 of the third terminal station X3, the fourth terminal station X4 and the fifth terminal station X5, one end of an indicator lamp of each of the third strip lamp selection switch S3, the fourth strip lamp selection switch S4 and the fifth strip lamp selection switch S5 is connected to a zero line (0V), and the other end of the indicator lamp is connected to the port 1 of the third terminal station X3, the fourth terminal station X4 and the fifth terminal station X5.
The sixth terminal block X6 is externally connected with a tested pressure sensor, the ports 3 and 4 of the sixth terminal block X6 are internally connected with the conventional direct current voltage (24VDC), the port 1 is connected with the zero line (0V), the ports 1 and 2 are connected with an ammeter P6, and the ammeter P6 is an LCD digital ammeter of 4-20 mA; one end of the switch button S6 is connected to the normal direct-current voltage (24VDC), and the other end is connected to the port 5 of the sixth terminal block X6.
Example two
The structure of this embodiment is basically the same as that of the first embodiment, except that, referring to fig. 2, the emergency stop button S0 is connected to the dc power module T1 through a cable and an eighth terminal block X8 to implement the remote control emergency stop protection function of the test box. Specifically, the eighth terminal block X8 is externally connected to the emergency stop button S0 through a cable, ports 1 and 2 of the eighth terminal block X8 are internally connected to the dc power supply module T1, port 3 is connected to the normal dc voltage (24VDC), and port 4 is connected to the neutral line (0V).
The test box provides a direct current power supply for testing through the direct current power supply module T1, the functional test of the pressure switch, the pressure sensor, the first electric control valve piece, the second electric control valve piece and the electromagnetic valve is realized by switching on the switch button S6 and each corresponding lamp-carrying selection switch, and the power supply is quickly cut off through the emergency stop button S0 when necessary, so that the safety of a test system is protected. The test box can simultaneously test the pressure switch, the pressure sensor, the first electric control valve piece, the second electric control valve piece and the plurality of electromagnetic valves, and can also respectively and independently test the pressure switch, the pressure sensor, the first electric control valve piece, the second electric control valve piece and the plurality of electromagnetic valves.
The working principle of the utility model is as follows, as shown in figure 1:
before testing, a pressure switch to be tested, a pressure sensor, a first electric control valve piece, a second electric control valve piece and a plurality of electromagnetic valves are connected to corresponding terminal blocks of the testing box respectively and independently or simultaneously, and then hydraulic pressure is applied to the LGIP main engine fuel block. After the test is started, the test box is powered on, an external alternating current power supply 220VAC outputs a conventional direct current voltage (24VDC) after passing through the direct current power supply module T1, the knob switch S6 is turned on after passing through the emergency stop button S0, the pressure value of the pressure sensor is displayed by the ammeter P6, and the pressure value indicates that the pressure sensor is normal; the lamp-equipped selection switches S1, S2, S3, S4 or S5 are pressed respectively, the corresponding indicator lamps are on, when the electrically controlled valve and the electromagnetic valve which are correspondingly connected to the outside are electrified and then generate clicking sound, the action of coils in the electrically controlled valve and the electromagnetic valve is normal, the valve is normal, and otherwise, the valve is abnormal. And the other path of direct current voltage outputs special direct current voltage (24VDC) after passing through the pressure switch, the special direct current voltage is used as a starting condition to be connected to the second electric control valve member, when the external test oil path is low-voltage, the second electric control valve member is not electrified, when the oil pressure of the external test oil path is high enough, the second lamp selection switch S2 is pressed, the indicator lamp is lightened, and when the second electric control valve member makes a click sound, the second electric control valve member is indicated to be normal in function, otherwise, the second electric control valve member is abnormal. When special conditions occur, the emergency stop button S0 is pressed, so that the external power supply of the test box can be cut off urgently, and the emergency stop protection function of the test box and the test system is realized.
The above embodiments are merely preferred embodiments, and the scope of the present invention is not limited to the above embodiments, but includes other equivalent modifications and alternatives obvious to the present invention.
Claims (6)
1. A test box for an LGIP host fuel block, the LGIP host fuel block comprises a tested pressure switch, a pressure sensor, a first electronic control valve, a second electronic control valve working under pressure and a plurality of solenoid valves; the method is characterized in that: the test box include:
the power supply terminal table is externally connected with a 220V alternating current power supply;
the direct current power supply module is connected with the power supply terminal block and converts a 220V alternating current power supply into a 24V direct current power supply;
one end of the emergency stop button is connected with the direct-current power supply module, and the other end of the emergency stop button outputs conventional direct-current voltage;
the first terminal table is externally connected with a first tested electric control valve and internally connected with the conventional direct current voltage;
the second terminal table is externally connected with a second electric control valve to be tested;
the third terminal station, the fourth terminal station and the fifth terminal station are externally connected with a tested electromagnetic valve;
the sixth terminal table is externally connected with a tested pressure sensor and internally connected with the conventional direct current voltage, and an ammeter is connected to the sixth terminal table;
the seventh terminal table is externally connected with a tested pressure switch, the inner end of the seventh terminal table is connected with the conventional direct-current voltage, the other end of the seventh terminal table is connected with the second terminal table, and the seventh terminal table outputs special direct-current voltage to the second electric control valve piece through the second terminal table;
a first lamp-carrying selection switch, one end of which is connected with the conventional direct-current voltage and the other end of which is connected with the first terminal platform;
one end of the second lamp-provided selection switch is connected with the conventional direct-current voltage, and the other end of the second lamp-provided selection switch is connected with the second terminal block;
a third lamp-equipped selector switch, one end of which is connected with the conventional direct-current voltage and the other end of which is connected with the third terminal station;
a fourth lamp selection switch, one end of which is connected with the conventional direct current voltage and the other end of which is connected with the fourth terminal station;
a fifth lamp-equipped selection switch, one end of which is connected with the conventional direct-current voltage and the other end of which is connected with the fifth terminal platform;
one end of the switch button is connected with the conventional direct-current voltage, and the other end of the switch button is connected with the sixth terminal table;
the test box provides a direct current power supply for testing through the direct current power supply module, the functional test of the pressure switch, the pressure sensor, the first electric control valve piece, the second electric control valve piece and the electromagnetic valve is realized by switching on the switch button and each corresponding lamp selection switch, and the power supply is quickly cut off through the emergency stop button when necessary so as to protect the safety of the test system.
2. A test box for an LGIP host fuel piece according to claim 1, wherein: the conventional direct current voltage and the special direct current voltage are both 24V direct current voltage.
3. A test box for an LGIP host fuel piece according to claim 1, wherein: the ammeter is a 4-20mA LCD digital ammeter.
4. A test box for an LGIP host fuel piece according to claim 1, 2 or 3, wherein: the emergency stop button is connected with the direct-current power supply module through a cable and an eighth terminal table so as to realize a remote control emergency stop protection function.
5. A test box for an LGIP host fuel piece according to claim 1, wherein: the first lamp-carrying selection switch, the second lamp-carrying selection switch, the third lamp-carrying selection switch, the fourth lamp-carrying selection switch and the fifth lamp-carrying selection switch respectively comprise a button and an indicator lamp, the button is connected with the conventional direct-current voltage, the indicator lamp is connected with a zero line, and the indicator lamp is turned on when the button is pressed.
6. A test box for an LGIP host fuel piece according to claim 1, wherein: the test box can simultaneously test the pressure switch, the pressure sensor, the first electric control valve piece, the second electric control valve piece and the plurality of electromagnetic valves, and can also respectively and independently test the pressure switch, the pressure sensor, the first electric control valve piece, the second electric control valve piece and the plurality of electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021202833.3U CN213091823U (en) | 2020-06-28 | 2020-06-28 | Test box for LGIP host fuel block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021202833.3U CN213091823U (en) | 2020-06-28 | 2020-06-28 | Test box for LGIP host fuel block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213091823U true CN213091823U (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021202833.3U Active CN213091823U (en) | 2020-06-28 | 2020-06-28 | Test box for LGIP host fuel block |
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|---|---|
| CN (1) | CN213091823U (en) |
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2020
- 2020-06-28 CN CN202021202833.3U patent/CN213091823U/en active Active
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