Simulation training device for airplane fire extinguishing system

Abstract

The utility model belongs to the technical field of fire extinguishing simulation, and particularly relates to an airplane fire extinguishing system simulation training device which comprises an operation module, a display module and a simulation circuit module which are connected with one another. The control relationship between the line laying and construction of the analog circuit module and the preset line on the airplane is consistent, and the circuit of the analog circuit module is provided with an analog fire alarm sensor used for simulating a fire alarm signal; the operation module controls a simulation fire alarm sensor in the simulation circuit module to simulate and generate a fire alarm signal according to the operation of a user, and reads the response of the simulation circuit module; the display module displays corresponding information according to the states of the operation module and the analog circuit module. The technical scheme provided by the utility model corresponds to the real object installation position on the machine completely according to the control relation of the actual circuit on the machine, and adapts to the operation environment and operation mode which are basically consistent with the real installation. The fire extinguishing system can simulate airplane fire and fire extinguishing line and pipeline actions after fire, and the working principle of the fire extinguishing system can be visually demonstrated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fire extinguishing simulation technical field, concretely relates to a plane fire extinguishing system simulation training device. BACKGROUND

[0002] The plane fire extinguishing system can realize the measurement of engine nacelle fire extinguishing (automatic, manual), wing external fire extinguishing (automatic, manual) and engine internal cavity fire extinguishing (manual), forced landing fire extinguishing (automatic) and other parameters in the plane fire extinguishing system, and can collect and display the measurement data. The test verification experiment is completed, and the detection result of the XX plane fire extinguishing system is correctly given. Therefore, the plane fire extinguishing system simulation training is extremely important.

[0003] Through the investigation and visit to the first-line aircraft maintenance personnel, the common reaction is that the fire extinguishing system is used to supply the function of automatic fire extinguishing and manual fire extinguishing for the fire alarm of each part of the plane, and it is an important component of the plane. Whether its working performance is good directly affects the flight safety of the plane; if the system is damaged, the plane is difficult to extinguish the fire in time and effectively. Correctly checking and analyzing the plane fire extinguishing system is an important link for maintaining the tactical performance of the plane and ensuring the flight safety, and is also a regular maintenance work.

[0004] In actual maintenance, the equipment and circuit of the system are carefully maintained externally, but the fault of the system is difficult to completely and completely reproduce, and the fault mechanism and inducement cannot be completely mastered, and the conclusion can be obtained only through principle analysis, which greatly limits the in-depth study of the fault of the system and leaves certain hidden dangers for subsequent maintenance guarantee.

[0005] Therefore, aiming at the problems and difficulties existing in the actual maintenance guarantee work, professional personnel cannot use the real plane fire extinguishing system to carry out simulation training of different degrees and different subjects. CONTENT OF THE UTILITY MODEL

[0006] Therefore, the utility model provides a plane fire extinguishing system simulation training device to solve the problem of insufficient training of professional personnel on the plane fire extinguishing system.

[0007] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0008] A plane fire extinguishing system simulation training device comprises:

[0009] An operation module, a display module and a simulation circuit module;

[0010] The line laying and building of the simulation circuit module are consistent with the control relationship of the line on the preset plane, and the circuit of the simulation circuit module is provided with a simulation fire alarm sensor for simulating a fire alarm signal.

[0011] The operation module is electrically connected with the display module and the analog circuit module respectively, and the operation module controls the analog fire alarm sensor in the analog circuit module to generate a fire alarm signal and reads the response of the analog circuit module according to the operation of a user.

[0012] The display module is electrically connected with the operation module and the analog circuit module respectively, and displays corresponding information according to the states of the operation module and the analog circuit module.

[0013] Preferably, the analog circuit module comprises:

[0014] The automatic protection switch and the check / operation switch are connected in sequence, and the engine cabin fire alarm analog circuit, the automatic fire extinguishing circuit and the forced landing fire extinguishing circuit are connected with the check / operation switch respectively.

[0015] Preferably, the analog circuit module further comprises:

[0016] The alarm module comprises a fire alarm signal lamp and an alarm speaker.

[0017] The alarm module is connected with the engine cabin fire alarm analog circuit and the automatic fire extinguishing circuit respectively.

[0018] Preferably, the engine cabin fire alarm analog circuit comprises:

[0019] A plurality of engine cabin fire alarm sensors, a fire control box HKH-3, a fire extinguishing bottle on button, a fire extinguishing check relay, a first left engine cabin relay, a second left engine cabin relay, a first right engine cabin relay, a second right engine cabin relay, a fire extinguishing bottle explosion cap signal lamp and a fire extinguishing bottle explosion cap.

[0020] The plurality of engine cabin fire alarm sensors are connected with the fire control box HKH-3, and the fire control box HKH-3 is connected with the fire alarm signal lamp.

[0021] The check / operation switch is connected with the fire extinguishing check relay, and the fire extinguishing check relay is connected with the left engine cabin fire extinguishing bottle on button and the right engine cabin fire extinguishing bottle on button respectively.

[0022] The left engine cabin fire extinguishing bottle on button is connected with the first left engine cabin relay and the second left engine cabin relay respectively, the normally closed contact point of the first left engine cabin relay is connected with the first left engine cavity fire extinguishing bottle explosion cap signal lamp, the normally closed contact point of the second left engine cabin relay is connected with the second left engine cavity fire extinguishing bottle explosion cap signal lamp, the normally open contact point of the first left engine cabin relay is connected with the first left engine cavity fire extinguishing bottle explosion cap, and the normally open contact point of the second left engine cabin relay is connected with the second left engine cavity fire extinguishing bottle explosion cap.

[0023] The right inner cabin fire bottle on button is connected with the first right inner cabin relay and the second right inner cabin relay respectively; the normally closed contact point of the first right inner cabin relay is connected with the first right inner cavity fire bottle explosion cap signal lamp, and the normally closed contact point of the second right inner cabin relay is connected with the second right inner cavity fire bottle explosion cap signal lamp; the normally open contact point of the first right inner cabin relay is connected with the first right inner cavity fire bottle explosion cap, and the normally open contact point of the second right inner cabin relay is connected with the second right inner cavity fire bottle explosion cap.

[0024] Preferably, the automatic fire extinguishing circuit comprises:

[0025] The left wing fire alarm simulation circuit, the right wing fire alarm simulation circuit, the left engine nacelle fire alarm simulation circuit and the right engine nacelle fire alarm simulation circuit;

[0026] The first automatic fire extinguishing relay is connected with the left wing fire alarm simulation circuit, the right wing fire alarm simulation circuit, the left engine nacelle fire alarm simulation circuit and the right engine nacelle fire alarm simulation circuit respectively, and acts when receiving positive electricity; the normally closed contact point of the first automatic fire extinguishing relay is connected with the first automatic fire extinguishing explosion cap signal lamp and the second automatic fire extinguishing explosion cap signal lamp, and the normally open node of the first automatic fire extinguishing relay is connected with the first automatic fire bottle explosion cap and the second automatic fire bottle explosion cap.

[0027] Preferably, the automatic fire extinguishing circuit further comprises:

[0028] The second automatic fire extinguishing relay is connected with the left wing fire alarm simulation circuit, the right wing fire alarm simulation circuit, the left engine nacelle fire alarm simulation circuit and the right engine nacelle fire alarm simulation circuit respectively;

[0029] The other end of the second automatic fire extinguishing relay is connected with the second automatic fire extinguishing relay; the normally closed contact point of the second automatic fire extinguishing relay is connected with the third automatic fire extinguishing explosion cap signal lamp and the fourth automatic fire extinguishing explosion cap signal lamp, and the normally open node of the second automatic fire extinguishing relay is connected with the third automatic fire bottle explosion cap and the fourth automatic fire bottle explosion cap.

[0030] Preferably, the left wing fire alarm simulation circuit comprises:

[0031] The plurality of left wing fire alarm sensors, the first fire control box HKH-2, the left wing fire alarm relay, the left wing electromagnetic switch;

[0032] The plurality of left wing fire alarm sensors are connected with the first fire control box HKH-2, the first fire control box HKH-2 is connected with the left wing fire alarm relay, the left wing fire alarm relay is connected with the alarm module and the inspection relay respectively; the inspection relay is connected with the left wing electromagnetic switch; the left wing electromagnetic switch is connected with the first automatic fire extinguishing relay and the second automatic fire extinguishing relay respectively;

[0033] The left engine compartment fire alarm simulation circuit includes:

[0034] Several left engine nacelle fire alarm sensors, HKH-2 second fire alarm control box, left engine nacelle fire alarm relay, and left engine nacelle electromagnetic switch;

[0035] The plurality of left engine compartment fire alarm sensors are connected to the second fire alarm control box HKH-2, the second fire alarm control box HKH-2 is connected to the left engine compartment fire alarm relay, the left engine compartment fire alarm relay is connected to the alarm module and the check relay respectively; the check relay is connected to the left engine compartment electromagnetic switch; the left engine compartment electromagnetic switch is connected to the first automatic fire extinguishing relay and the group II automatic fire extinguishing activation button respectively.

[0036] The right engine compartment fire alarm simulation circuit includes:

[0037] Several right engine nacelle fire alarm sensors, third fire alarm control box HKH-2, right engine nacelle fire alarm relay, and right engine nacelle electromagnetic switch;

[0038] The plurality of right engine compartment fire alarm sensors are connected to the third fire alarm control box HKH-2, the third fire alarm control box HKH-2 is connected to the right engine compartment fire alarm relay, the right engine compartment fire alarm relay is connected to the alarm module and the check relay respectively; the check relay is connected to the right engine compartment electromagnetic switch; the right engine compartment electromagnetic switch is connected to the first automatic fire extinguishing relay and the group II automatic fire extinguishing activation button respectively.

[0039] The right wing fire alarm simulation circuit includes:

[0040] Several right wing fire alarm sensors, fourth fire alarm control box HKH-2, right wing fire alarm relay, and right wing electromagnetic switch;

[0041] The aforementioned right wing fire alarm sensors are connected to the fourth fire alarm control box HKH-2, which is connected to the right wing fire alarm relay. The right wing fire alarm relay is connected to the alarm module and the check relay, respectively. The check relay is connected to the right wing electromagnetic switch, and the right wing electromagnetic switch is connected to the first automatic fire extinguishing relay and the group II automatic fire extinguishing activation button, respectively.

[0042] Preferably, the analog circuit module further includes: a manual fire extinguishing circuit;

[0043] The manual fire suppression circuit includes: a manual fire suppression button for the left wing, a manual fire suppression button for the right wing, a manual fire suppression button for the left engine nacelle, and a manual fire suppression button for the right engine nacelle.

[0044] One end of the manual fire extinguishing button on the left wing is connected to positive electricity, and the other end is connected to the electromagnetic switch on the left wing via a check relay.

[0045] One end of the manual fire extinguishing button on the right wing is connected to positive electricity, and the other end is connected to the electromagnetic switch on the right wing via a check relay.

[0046] One end of the manual fire extinguishing button for the left engine compartment is connected to positive electricity, and the other end is connected to the electromagnetic switch of the left engine compartment via a check relay.

[0047] One end of the manual fire extinguishing button for the right engine nacelle is connected to positive electricity, and the other end is connected to the electromagnetic switch of the right engine nacelle via a check relay.

[0048] Preferably, the forced landing fire extinguishing circuit includes: a micro switch, the micro switch being connected to positive power via an automatic protection switch, and the other end of the micro switch being connected to a forced landing fire extinguishing contactor and a forced landing fire extinguishing relay, respectively;

[0049] The emergency landing fire extinguishing contactor is connected to the left wing electromagnetic switch, the left engine nacelle electromagnetic switch, the right engine nacelle electromagnetic switch, and the right wing electromagnetic switch respectively via a check relay;

[0050] The forced landing fire extinguishing relay is connected to the first left engine compartment relay, the second left engine compartment relay, the first right engine compartment relay, and the second right engine compartment relay, respectively.

[0051] The present invention, by adopting the above technical solution, has at least the following beneficial effects:

[0052] It is understood that the technical solution shown in this utility model includes an interconnected operation module, a display module, and an analog circuit module. The wiring layout of the analog circuit module is consistent with the control relationship of the preset aircraft wiring. The circuit of the analog circuit module is equipped with a simulated fire alarm sensor to simulate fire alarm signals. The operation module controls the simulated fire alarm sensor in the analog circuit module to generate a simulated fire alarm signal according to the user's operation, and reads the response of the analog circuit module. The display module displays corresponding information according to the status of the operation module and the analog circuit module. The technical solution shown in this utility model completely follows the control relationship of the actual aircraft circuit, corresponds to the actual installation position on the aircraft, and adapts to the operating environment and operation mode that are basically the same as the actual installation. It can simulate the wiring and piping actions of the aircraft fire and subsequent fire extinguishing, and demonstrate the working principle of the fire extinguishing system in a more intuitive way.

[0053] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 This is a schematic diagram of an aircraft fire suppression system simulation training device shown in an exemplary embodiment of the present invention;

[0056] Figure 2 This is a schematic diagram of an analog circuit shown in an exemplary embodiment of the present invention. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0058] Figure 1 This is a schematic diagram of an aircraft fire suppression system simulation training device according to an exemplary embodiment of the present invention. See also: Figure 1 A simulation training device for an aircraft fire suppression system is provided, comprising:

[0059] Operation module, display module, and analog circuit module;

[0060] The wiring layout of the analog circuit module is consistent with the control relationship of the preset aircraft wiring. The analog circuit module is equipped with a simulated fire alarm sensor to simulate fire alarm signals.

[0061] The operation module is electrically connected to the display module and the analog circuit module respectively. The operation module controls the simulated fire alarm sensor in the analog circuit module to generate a fire alarm signal according to the user's operation, and reads the response of the analog circuit module.

[0062] The display module is electrically connected to both the operation module and the analog circuit module, and displays corresponding information based on the status of the operation module and the analog circuit module.

[0063] It is understood that the technical solution shown in this utility model includes an interconnected operation module, a display module, and an analog circuit module. The wiring layout of the analog circuit module is consistent with the control relationship of the preset aircraft wiring. The circuit of the analog circuit module is equipped with a simulated fire alarm sensor to simulate fire alarm signals. The operation module controls the simulated fire alarm sensor in the analog circuit module to generate a simulated fire alarm signal according to the user's operation, and reads the response of the analog circuit module. The display module displays corresponding information according to the status of the operation module and the analog circuit module. The technical solution shown in this utility model completely follows the control relationship of the actual aircraft circuit, corresponds to the actual installation position on the aircraft, and adapts to the operating environment and operation mode that are basically the same as the actual installation. It can simulate the wiring and piping actions of the aircraft fire and subsequent fire extinguishing, and demonstrate the working principle of the fire extinguishing system in a more intuitive way.

[0064] It should be noted that the analog circuit module includes:

[0065] The automatic protection switch and the inspection / operation switch are connected in sequence, and the engine compartment fire alarm simulation circuit, the automatic fire extinguishing circuit and the forced landing fire extinguishing circuit are respectively connected to the inspection / operation switch.

[0066] It should be noted that the analog circuit module also includes:

[0067] The alarm module includes a fire alarm indicator light and an alarm speaker;

[0068] The alarm module is connected to the engine compartment fire alarm simulation circuit and the automatic fire extinguishing circuit, respectively.

[0069] Understandably, the alarm module is designed to issue an alarm when the sensors in the analog circuit module are activated, thus informing relevant personnel of the fire alarm information.

[0070] Figure 2 This is a schematic diagram of an analog circuit illustrating an exemplary embodiment of the present invention. See also: Figure 2 The following explanation is provided.

[0071] It should be noted that the engine compartment fire alarm simulation circuit includes:

[0072] Several engine compartment fire alarm sensors (1083, 1082, 1084, 1085), fire control box HKH-3, (1086) fire extinguisher bottle activation button (1096, 1097), fire extinguisher check relay 1092, first left engine compartment relay 1089, second left engine compartment relay 1138, first right engine compartment relay 1090, second right engine compartment relay 1142, fire extinguisher bottle explosion cap indicator light (1091, 1140, 1093, 1144), fire extinguisher bottle explosion cap (1094, 1139, 1095, 1143);

[0073] The plurality of engine compartment fire alarm sensors (1083, 1082, 1084, 1085) are connected to the fire control box HKH-3 (1086), and the fire control box HKH-3 (1086) is connected to the fire alarm signal lights (1087, 1088).

[0074] The inspection / operation switch 961 is connected to the fire extinguishing inspection relay 1092; the fire extinguishing inspection relay 1092 is connected to the left engine compartment fire extinguishing bottle activation button 1096 and the right engine compartment fire extinguishing bottle activation button 1097 respectively.

[0075] The left engine compartment fire extinguisher bottle activation button 1096 is connected to the first left engine compartment relay 1089 and the second left engine compartment relay 1138 respectively; the normally closed contact of the first left engine compartment relay 1089 is connected to the first left engine compartment fire extinguisher bottle explosion cap indicator light 1091, and the normally closed contact of the second left engine compartment relay 1138 is connected to the second left engine compartment fire extinguisher bottle explosion cap indicator light 1140; the normally open contact of the first left engine compartment relay 1089 is connected to the first left engine compartment fire extinguisher bottle explosion cap 1094, and the normally open contact of the second left engine compartment relay 1138 is connected to the second left engine compartment fire extinguisher bottle explosion cap 1139.

[0076] The right engine compartment fire extinguisher bottle activation button 1097 is connected to the first right engine compartment relay 1090 and the second right engine compartment relay 1142 respectively; the normally closed contact of the first right engine compartment relay 1090 is connected to the first right engine compartment fire extinguisher bottle explosion cap indicator light 1093, the normally closed contact of the second right engine compartment relay 1142 is connected to the second right engine compartment fire extinguisher bottle explosion cap indicator light 1144; the normally open contact of the first right engine compartment relay 1090 is connected to the first right engine compartment fire extinguisher bottle explosion cap 1095, and the normally open contact of the second right engine compartment relay 1142 is connected to the second right engine compartment fire extinguisher bottle explosion cap 1143.

[0077] In practical application, taking the No. 1 fire alarm sensor 1083 on the left as an example, its working process is explained as follows:

[0078] (1) Turn on the automatic protection switch (in) Figure 2 (Not shown in the drawing).

[0079] (2) When the “Work-Check” switch 961 is in the “Work” position, the four yellow fire extinguisher bottle explosion cap indicator lights (1091, 1093, 1140, 1144) will light up, indicating that the fire extinguisher bottle circuit is good and the extinguishing agent has not been released.

[0080] (3) When the sensor (1083) is working, the positive signal transmission path is as follows: sensor (1083) → 4 holes of control box HKH-3 (1086) CZ3, through the internal circuit of control box HKH-3 (1086), making the 4 holes of control box (1086) CZ2 positively charged → left engine cavity fire alarm signal light (1087) → ground; another path is from the 4 holes of control box (1086) CZ4 → horn sound signal. Then the signal light lights up and the horn sounds, so that the crew can be informed of the fire signal and then carry out manual firefighting.

[0081] (4) Press the left engine inner chamber fire extinguisher bottle activation button (1096), then the positive power on the machine → automatic protection switch → switch (961) → relay (1092) contact → button (1096), and then the coils of relays (1089) and (1138) are grounded respectively, causing them to operate. After these two relays work, on the one hand, their normally closed contacts open, causing the fire extinguisher bottle explosion cap indicator lights (1091) and (1140) to go out; on the other hand, their normally open contacts close, causing the left engine inner chamber fire extinguisher bottle explosion caps (1094) and (1139) to work, and the two fire extinguishers release extinguishing agent to the fire location to extinguish the fire.

[0082] It should be noted that the automatic fire extinguishing circuit includes:

[0083] Fire alarm simulation circuit for left wing, fire alarm simulation circuit for right wing, fire alarm simulation circuit for left engine nacelle, and fire alarm simulation circuit for right engine nacelle;

[0084] The first automatic fire extinguishing relay 992 is connected to the fire alarm simulation circuits of the left wing, right wing, left engine nacelle, and right engine nacelle respectively, and activates when it receives positive power. The normally closed contact of the first automatic fire extinguishing relay 992 is connected to the first automatic fire extinguishing explosion cap signal light 972 and the second automatic fire extinguishing explosion cap signal light 991, and the normally open contact of the first automatic fire extinguishing relay 992 is connected to the first automatic fire extinguishing bottle explosion cap 970 and the second automatic fire extinguishing bottle explosion cap 989.

[0085] It should be noted that the automatic fire extinguishing circuit also includes:

[0086] Group II automatic fire extinguishing activation button 971 is connected to the fire alarm simulation circuits of the left wing, right wing, left engine nacelle, and right engine nacelle, respectively.

[0087] The other end of the group II automatic fire extinguishing button 971 is connected to the second automatic fire extinguishing relay 1100; the normally closed contact of the second automatic fire extinguishing relay 1100 is connected to the third automatic fire extinguishing explosion cap signal light 990 and the fourth automatic fire extinguishing explosion cap signal light 973, and the normally open contact of the second automatic fire extinguishing relay 1100 is connected to the third automatic fire extinguishing bottle explosion cap 988 and the fourth automatic fire extinguishing bottle explosion cap 969.

[0088] It should be noted that the fire alarm simulation circuit for the left wing includes:

[0089] Several left wing fire alarm sensors (1058, 1057, 1056, 1053, 976, 975), first fire alarm control box HKH-2 (1059), left wing fire alarm relay 1003, left wing electromagnetic switch (1002 left);

[0090] The aforementioned left wing fire sensors (1058, 1057, 1056, 1053, 976, 975) are connected to the first fire alarm control box HKH-2 (1059), which is connected to the left wing fire alarm relay 1003. The left wing fire alarm relay 1003 is connected to the alarm module and the check relay 3702, respectively. The check relay 3702 is connected to the left wing electromagnetic switch 1002. The left wing electromagnetic switch 1002 is connected to the first automatic fire extinguishing relay 992 and the group II automatic fire extinguishing activation button 971, respectively.

[0091] The left engine compartment fire alarm simulation circuit includes:

[0092] Several left engine nacelle fire alarm sensors (1055, 977, 1054, 1007, 1006, 1005), second fire alarm control box HKH-2 (1062), left engine nacelle fire alarm relay 963, left engine nacelle electromagnetic switch (1002 right);

[0093] The plurality of left engine compartment fire alarm sensors (1055, 977, 1054, 1007, 1006, 1005) are connected to the second fire alarm control box HKH-2 (1062), the second fire alarm control box HKH-2 (1062) is connected to the left engine compartment fire alarm relay 963, the left engine compartment fire alarm relay 963 is connected to the alarm module and the check relay 3702 respectively; the check relay 3702 is connected to the left engine compartment electromagnetic switch (1002 right); the left engine compartment electromagnetic switch (1002 right) is connected to the first automatic fire extinguishing relay 992 and the group II automatic fire extinguishing activation button 971 respectively;

[0094] The right engine compartment fire alarm simulation circuit includes:

[0095] Several right engine nacelle fire alarm sensors (1052, 907, 1010, 1009, 1008), third fire alarm control box HKH-2 (974), right engine nacelle fire alarm relay 964, right engine nacelle electromagnetic switch (966 left);

[0096] The aforementioned right engine compartment fire alarm sensors (1052, 907, 1010, 1009, 1008) are connected to the third fire alarm control box HKH-2 (974), which is connected to the right engine compartment fire alarm relay 964. The right engine compartment fire alarm relay 964 is connected to the alarm module and the inspection relay 3702, respectively. The inspection relay 3702 is connected to the right engine compartment electromagnetic switch (966 left), and the right engine compartment electromagnetic switch (966 left) is connected to the first automatic fire extinguishing relay 992 and the group II automatic fire extinguishing activation button 971, respectively.

[0097] The right wing fire alarm simulation circuit includes:

[0098] Several right wing fire alarm sensors (1049, 1048, 1047, 1050, 979, 978), fourth fire alarm control box HKH-2 (1004), right wing fire alarm relay 1001, right wing electromagnetic switch (966 right);

[0099] The aforementioned right wing fire sensors (1049, 1048, 1047, 1050, 979, 978) are connected to the fourth fire control box HKH-2 (1004), which is connected to the right wing fire relay 1001. The right wing fire relay 1001 is connected to the alarm module and the check relay 3702, respectively. The check relay 3702 is connected to the right wing electromagnetic switch (966 right), and the right wing electromagnetic switch (966 right) is connected to the first automatic fire extinguishing relay 992 and the group II automatic fire extinguishing activation button 971, respectively.

[0100] In practice, taking the left wing as an example, its working process is illustrated as follows:

[0101] (1) Turn on the automatic protection switch (not shown in the figure).

[0102] (2) When the "Work-Check" switch 961 is in the "Work" position, the four yellow fire extinguisher bottle explosion cap indicator lights (990, 973, 972, (991)) will light up, indicating that the circuits of the four fire extinguishers are good and the extinguishing agent has not been released. At this time, positive power → automatic protection switch (960) → switch (961) → the above indicator lights → relays (992), (1100) → fire extinguisher bottle explosion caps (988), (969), (970), (989) → ground.

[0103] (3) Assume the left-wing sensor (1058) is working. Then the positive signal flows from the positive terminal of the sensor (1058) to the control box (1059). The positive power on the machine flows from the automatic protection switch to the switch (961) to the control box (1059) to the relay (1003) coil and then to ground, making the relay (1003) work.

[0104] (4) After the relay (1003) is working, the horn will sound, the fire alarm light will turn on, and the electromagnetic switch will be activated.

[0105] The positive voltage on the machine is transmitted through the relay (1003) to the alarm speaker, causing it to sound an alarm.

[0106] Positive electricity on the aircraft passes through relay (1003) → left wing fire alarm push-button signal light (1011) → ground, and the light illuminates.

[0107] The positive power supply from the machine passes through relay (1003) → relay (3702) → hole 1 of the electromagnetic switch (1002) pin, through its internal coil I and hole 3 of the pin → to ground, thus activating the electromagnetic switch (1002). It maintains self-locking via the positive power supply from the machine through hole 4 of the pin, while the indicator light (1011) is also kept connected via the positive power supply from hole 4 of the electromagnetic switch (1002), through hole 1 of the pin, and contacts 1 and 2 of the relay (3702).

[0108] (5) After the electromagnetic switch (1002) is activated, the positive current from its pin 2 holes is grounded through the coil of the relay (992), causing the relay (992) to activate. The normally closed contacts of the relay disconnect the circuits of the explosion cap indicator lights (972) and (991) respectively, causing these two indicator lights to go out; while its normally open contacts connect the circuits of the fire extinguisher explosion caps (970) and (989) respectively, causing the two fire extinguishers to activate. Its working circuit is as follows: positive current from the pin 2 holes of the electromagnetic switch (1002) → switch (961) → relay (992) → fire extinguisher explosion caps (970) and (989) → grounded.

[0109] (6) When two additional fire extinguishers are needed, press the group II fire extinguisher explosion cap activation button (971). At this time, positive electricity comes from the two holes of the electromagnetic switch (1002) pin, which on the one hand makes the relay (1100) work, and its normally closed contacts disconnect the circuits of the fire extinguisher explosion cap indicator lights (990) and (973) respectively, so that these two indicator lights are extinguished; on the other hand, positive electricity goes through the switch (961) → the normally open contact of the relay (1100) → the fire extinguisher explosion cap (988) and (969) → ground, so that the two corresponding fire extinguishers work.

[0110] To ensure that the fire has been extinguished and to use the next set of fire extinguishers correctly, the "Work-Check" switch (961) must be turned off once after the first set of fire extinguishers has been working for 15 seconds. Otherwise, the self-locking of the electromagnetic switch will keep the fire alarm button-type indicator light lit even if the fire has been extinguished.

[0111] The working principles of the right wing fire alarm simulation circuit, the left engine nacelle fire alarm simulation circuit, and the right engine nacelle fire alarm simulation circuit are similar to those of the left wing fire alarm simulation circuit.

[0112] It should be noted that the analog circuit module also includes: a manual fire extinguishing circuit;

[0113] The manual fire suppression circuit includes: a manual fire suppression button for the left wing, a manual fire suppression button for the right wing, a manual fire suppression button for the left engine nacelle, and a manual fire suppression button for the right engine nacelle.

[0114] One end of the manual fire extinguishing button on the left wing is connected to positive electricity, and the other end is connected to the electromagnetic switch (1002 left) on the left wing through the check relay 3702;

[0115] One end of the manual fire extinguishing button on the right wing is connected to positive electricity, and the other end is connected to the electromagnetic switch (966 right) on the right wing via a check relay 3702;

[0116] One end of the manual fire extinguishing button for the left engine compartment is connected to positive electricity, and the other end is connected to the electromagnetic switch (1002 right) of the left engine compartment via the inspection relay 3702;

[0117] One end of the manual fire extinguishing button for the right engine nacelle is connected to positive electricity, and the other end is connected to the electromagnetic switch (966 left) of the right engine nacelle via a check relay 3702.

[0118] External manual fire suppression is an emergency measure taken when the HKH-2 fire alarm system fails and a fire is detected in a part of the aircraft. When a fire is confirmed in a specific area outside the aircraft, the corresponding fire alarm button-type indicator light can be pressed. At this time, positive electricity from the aircraft is directly applied to the electromagnetic switch at the location of the fire via the button light's button and the normally closed contact of the relay (3702), activating the electromagnetic switch. The subsequent operation is the same as in the case of the "external automatic fire suppression circuit".

[0119] It should be noted that the forced landing fire extinguishing circuit includes: micro switches (981, 982), the micro switches (981, 982) are connected to positive power through an automatic protection switch, and the other end of the micro switches (981, 982) is connected to the forced landing fire extinguishing contactor (983, 965) and the forced landing fire extinguishing relay (1103) respectively;

[0120] The forced landing fire extinguishing contactors (983, 965) are connected to the left wing electromagnetic switch (1002 left), the left engine nacelle electromagnetic switch (1002 right), the right engine nacelle electromagnetic switch (966 left), and the right wing electromagnetic switch (966 right) respectively via the inspection relay 3702.

[0121] The forced landing fire extinguishing relay 1103 is connected to the first left engine compartment relay 1089, the second left engine compartment relay 1138, the first right engine compartment relay 1090, and the second right engine compartment relay 1142, respectively.

[0122] In practice, the workflow for emergency landing and firefighting is as follows:

[0123] (1) Turn on the automatic protection switch (not shown in the figure).

[0124] (2) Set the “Work-Check” switch (961) to the “Work” position.

[0125] (3) When the aircraft makes an emergency landing, press the micro switches (981) and (982) on the lower part of the fuselage. At this time, the positive power on the aircraft → automatic protection switch (980) → micro switches (981) and (982) → coils of contactors (983) and (965) and relays (1103) → ground, so that the contactors and relays can work.

[0126] (4) After the contactors (983) and (965) are working, the positive current through their contacts opens all the electromagnetic switches, and the two fire extinguishing bottles in the first group are working. At the same time, after the electromagnetic switches are working, the positive current coming out of their pin 2 holes → contactors (983) and (965) → coil of relay (1100) → ground, making relay (1100) work, and then the two fire extinguishing bottles in the second group also work (see the external automatic fire extinguishing circuit for the working process).

[0127] (5) After the relay (1103) is working, the positive current passes through its normally open contact to the coil of the relay (1089, 1090, 1142, 1138) to ground, so that these four relays work, and the four fire extinguishers used for fire extinguishing in the engine cavity also work (see the engine cavity fire extinguishing circuit for the working process).

[0128] The circuit described above can also be used to check the power supply of the fire extinguishing system and the operation of the electromagnetic switch.

[0129] The procedure for checking the power supply of a fire suppression system is as follows:

[0130] (1) Turn on the automatic protection switch.

[0131] (2) Set the "Work-Inspection" switch (961) to the "Inspection" position. At this time, the yellow indicator lights of the 8 fire extinguisher caps should light up (4 for external fire extinguishers and 4 for engine cavity fire extinguishers). This indicates that the fire extinguisher cap circuit is in good condition. Positive power → Automatic protection switch (960) → Switch (961) → Coil of relay (1092) → Grounded, making relay (1092) work. After the relay works, its contacts 2 and 1 disconnect the power supply circuit for the engine cavity fire extinguisher caps to ensure inspection safety, and its contacts 5 and 6 connect the power supply of the inspection circuit.

[0132] (3) The inspection of the sensor and fire control box is achieved by setting the band switch (1060) and the inspection button. Taking the engine cavity fire extinguishing sensor (1083) and control box (1086) as an example. Set the band switch to the "Internal No. 1" position and press the inspection button. Then the positive power → automatic protection switch (960) → switch (961) → band switch (1060) → fire control box (1086) → sensor (1083) → fire control box (1086) → ground. Then the fire alarm indicator light (1087) lights up and the horn sounds (see the engine cavity fire extinguishing circuit for detailed working process).

[0133] The other sensors for engine fire suppression are checked using the same method as above.

[0134] Taking the external fire extinguishing sensor (1058) and control box (1059) as an example: Place the band switch (1060) in the corresponding position and press the check button. Then, positive power → automatic protection switch (960) → switch (961) → check button → band switch (1060) → control box (1059) → sensor (1058) → control box (1059) → ground. Then the relay (1003) works, the fire alarm button-type indicator light (1011) lights up, and the horn sounds. When the band switch (1060) is placed in the corresponding position and the check button is pressed, not only the button-type indicator light (1011) lights up, but the other button-type indicator lights (967), (968), and (1012) should also light up at the same time. This indicates that the wiring of the sensors of each fire extinguishing part and their corresponding HKH-2 control boxes is good.

[0135] The inspection methods for the other groups of sensors used in external fire suppression are the same as above.

[0136] When checking the sensor and control box wiring, the relay (3702) also operates simultaneously. Its circuit is as follows: positive power → automatic protection switch (960) → switch (961) → band switch (1060) → relay (3702) coil → ground. Thus, the relay (3702) operates, and its normally closed contact disconnects the operating circuits of each electromagnetic switch. This simplifies the procedure for checking the sensor and control box wiring, eliminating the need to disconnect the "operation-check" switch (961) after each set of sensors has been checked.

[0137] The procedure for checking the operation of electromagnetic switches is as follows:

[0138] (1) Turn on the automatic protection switch.

[0139] (2) Set the “Work-Check” switch (961) to the “Check” position.

[0140] (3) Set the band switch (1060) to the "off" position.

[0141] (4) Press the fire alarm button-type indicator lights (1011), (1012), (967), and (968) on the left and right wings and the left and right engines respectively, and the corresponding indicator lights will light up. If the light does not go out after releasing the button, it indicates that the corresponding electromagnetic switch circuit is working well. Taking the left wing as an example: positive power → automatic protection switch (960) → switch (961) → relay (1092) coil → ground. When the relay (1092) is working, its contacts 5 and 6 are connected, and the positive power goes through these two contacts to the fire alarm button-type indicator light (1011) on the left wing. From there, it splits into two paths: one path lights up the fire alarm button-type indicator light (1011); the other path goes to the relay (3702) → the pin 1 hole of the electromagnetic switch (1002) → the end switch A in the electromagnetic switch → coil I → the pin 3 hole of the electromagnetic switch → ground. Thus, the electromagnetic switch (1002) is working. After the electromagnetic switch is activated, it will lock the fire alarm button light (10l1) on the one hand, and activate the relay (992) on the other hand. Its normally closed contact will disconnect the yellow signal light circuit of the two fire extinguishing bottle explosion caps, causing the lights to go out (see the automatic fire extinguishing circuit for the working process).

[0142] Note: Before checking each set of electromagnetic switches, the "Work-Check" switch (961) must be turned off once. Otherwise, due to the self-locking effect of the electromagnetic switches, it is not easy to determine whether the next set of electromagnetic switches is working properly.

[0143] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

[0144] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0145] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0146] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A simulation training device for an aircraft fire suppression system, characterized in that, include: Operation module, display module, and analog circuit module; The wiring layout of the analog circuit module is consistent with the control relationship of the preset aircraft wiring. The analog circuit module is equipped with a simulated fire alarm sensor to simulate fire alarm signals. The operation module is electrically connected to the display module and the analog circuit module respectively. The operation module controls the simulated fire alarm sensor in the analog circuit module to generate a fire alarm signal according to the user's operation, and reads the response of the analog circuit module. The display module is electrically connected to both the operation module and the analog circuit module, and displays corresponding information based on the status of the operation module and the analog circuit module.

2. The aircraft fire suppression system simulation training device according to claim 1, characterized in that, The analog circuit module includes: The automatic protection switch and the inspection / operation switch are connected in sequence, and the engine compartment fire alarm simulation circuit, the automatic fire extinguishing circuit and the forced landing fire extinguishing circuit are respectively connected to the inspection / operation switch.

3. The aircraft fire suppression system simulation training device according to claim 2, characterized in that, The analog circuit module further includes: The alarm module includes a fire alarm indicator light and an alarm speaker; The alarm module is connected to the engine compartment fire alarm simulation circuit and the automatic fire extinguishing circuit, respectively.

4. The aircraft fire suppression system simulation training device according to claim 3, characterized in that, The engine compartment fire alarm simulation circuit includes: Several engine compartment fire alarm sensors, HKH-3 fire control box, fire extinguisher bottle activation button, fire extinguishing check relay, first left engine compartment relay, second left engine compartment relay, first right engine compartment relay, second right engine compartment relay, fire extinguisher bottle explosion cap indicator light, fire extinguisher bottle explosion cap. The plurality of engine compartment fire alarm sensors are connected to the fire control box HKH-3, and the fire control box HKH-3 is connected to the fire alarm signal light; The inspection / operation switch is connected to the fire extinguishing inspection relay; the fire extinguishing inspection relay is connected to the fire extinguishing bottle activation button in the left engine compartment and the fire extinguishing bottle activation button in the right engine compartment, respectively. The left engine compartment fire extinguisher bottle activation button is connected to the first left engine compartment relay and the second left engine compartment relay respectively; the normally closed contact of the first left engine compartment relay is connected to the first left engine compartment fire extinguisher bottle explosion cap indicator light, and the normally closed contact of the second left engine compartment relay is connected to the second left engine compartment fire extinguisher bottle explosion cap indicator light; the normally open contact of the first left engine compartment relay is connected to the first left engine compartment fire extinguisher bottle explosion cap, and the normally open contact of the second left engine compartment relay is connected to the second left engine compartment fire extinguisher bottle explosion cap. The right engine compartment fire extinguisher bottle activation button is connected to the first right engine compartment relay and the second right engine compartment relay respectively; the normally closed contact of the first right engine compartment relay is connected to the first right engine compartment fire extinguisher bottle explosion cap indicator light, and the normally closed contact of the second right engine compartment relay is connected to the second right engine compartment fire extinguisher bottle explosion cap indicator light; the normally open contact of the first right engine compartment relay is connected to the first right engine compartment fire extinguisher bottle explosion cap, and the normally open contact of the second right engine compartment relay is connected to the second right engine compartment fire extinguisher bottle explosion cap.

5. The aircraft fire suppression system simulation training device according to claim 4, characterized in that, The automatic fire extinguishing circuit includes: Fire alarm simulation circuit for left wing, fire alarm simulation circuit for right wing, fire alarm simulation circuit for left engine nacelle, and fire alarm simulation circuit for right engine nacelle; The first automatic fire extinguishing relay is connected to the fire alarm simulation circuits of the left wing, right wing, left engine nacelle, and right engine nacelle respectively, and activates when it receives positive power. The normally closed contact of the first automatic fire extinguishing relay is connected to the first and second automatic fire extinguishing explosion cap signal lights, and the normally open contact of the first automatic fire extinguishing relay is connected to the first and second automatic fire extinguishing bottle explosion caps.

6. The aircraft fire suppression system simulation training device according to claim 5, characterized in that, The automatic fire extinguishing circuit also includes: Group II automatic fire extinguishing activation buttons are respectively connected to the fire alarm simulation circuits of the left wing, right wing, left engine nacelle, and right engine nacelle. The other end of the group II automatic fire extinguishing button is connected to the second automatic fire extinguishing relay; the normally closed contact of the second automatic fire extinguishing relay is connected to the third and fourth automatic fire extinguishing explosion cap indicator lights, and the normally open contact of the second automatic fire extinguishing relay is connected to the third and fourth automatic fire extinguishing bottle explosion caps.

7. The aircraft fire suppression system simulation training device according to claim 6, characterized in that, The fire alarm simulation circuit for the left wing includes: Several left wing fire alarm sensors, HKH-2 first fire alarm control box, left wing fire alarm relay, and left wing electromagnetic switch; The plurality of left wing fire alarm sensors are connected to the first fire alarm control box HKH-2, the first fire alarm control box HKH-2 is connected to the left wing fire alarm relay, the left wing fire alarm relay is connected to the alarm module and the check relay respectively; the check relay is connected to the left wing electromagnetic switch; the left wing electromagnetic switch is connected to the first automatic fire extinguishing relay and the group II automatic fire extinguishing activation button respectively. The left engine compartment fire alarm simulation circuit includes: Several left engine nacelle fire alarm sensors, HKH-2 second fire alarm control box, left engine nacelle fire alarm relay, and left engine nacelle electromagnetic switch; The plurality of left engine compartment fire alarm sensors are connected to the second fire alarm control box HKH-2, the second fire alarm control box HKH-2 is connected to the left engine compartment fire alarm relay, the left engine compartment fire alarm relay is connected to the alarm module and the check relay respectively; the check relay is connected to the left engine compartment electromagnetic switch; the left engine compartment electromagnetic switch is connected to the first automatic fire extinguishing relay and the group II automatic fire extinguishing activation button respectively. The right engine compartment fire alarm simulation circuit includes: Several right engine nacelle fire alarm sensors, third fire alarm control box HKH-2, right engine nacelle fire alarm relay, and right engine nacelle electromagnetic switch; The plurality of right engine compartment fire alarm sensors are connected to the third fire alarm control box HKH-2, the third fire alarm control box HKH-2 is connected to the right engine compartment fire alarm relay, the right engine compartment fire alarm relay is connected to the alarm module and the check relay respectively; the check relay is connected to the right engine compartment electromagnetic switch; the right engine compartment electromagnetic switch is connected to the first automatic fire extinguishing relay and the group II automatic fire extinguishing activation button respectively. The right wing fire alarm simulation circuit includes: Several right wing fire alarm sensors, fourth fire alarm control box HKH-2, right wing fire alarm relay, and right wing electromagnetic switch; The aforementioned right wing fire alarm sensors are connected to the fourth fire alarm control box HKH-2, which is connected to the right wing fire alarm relay. The right wing fire alarm relay is connected to the alarm module and the check relay, respectively. The check relay is connected to the right wing electromagnetic switch, and the right wing electromagnetic switch is connected to the first automatic fire extinguishing relay and the group II automatic fire extinguishing activation button, respectively.

8. The aircraft fire suppression system simulation training device according to claim 7, characterized in that, The analog circuit module also includes: a manual fire extinguishing circuit; The manual fire suppression circuit includes: a manual fire suppression button for the left wing, a manual fire suppression button for the right wing, a manual fire suppression button for the left engine nacelle, and a manual fire suppression button for the right engine nacelle. One end of the manual fire extinguishing button on the left wing is connected to positive electricity, and the other end is connected to the electromagnetic switch on the left wing via a check relay. One end of the manual fire extinguishing button on the right wing is connected to positive electricity, and the other end is connected to the electromagnetic switch on the right wing via a check relay. One end of the manual fire extinguishing button for the left engine compartment is connected to positive electricity, and the other end is connected to the electromagnetic switch of the left engine compartment via a check relay. One end of the manual fire extinguishing button for the right engine nacelle is connected to positive electricity, and the other end is connected to the electromagnetic switch of the right engine nacelle via a check relay.

9. The aircraft fire suppression system simulation training device according to claim 7, characterized in that, The forced landing fire extinguishing circuit includes: a micro switch, which is connected to positive power through an automatic protection switch, and the other end of the micro switch is connected to a forced landing fire extinguishing contactor and a forced landing fire extinguishing relay respectively; The emergency landing fire extinguishing contactor is connected to the left wing electromagnetic switch, the left engine nacelle electromagnetic switch, the right engine nacelle electromagnetic switch, and the right wing electromagnetic switch respectively via a check relay; The forced landing fire extinguishing relay is connected to the first left engine compartment relay, the second left engine compartment relay, the first right engine compartment relay, and the second right engine compartment relay, respectively.

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