CN111653143A - A kind of LNG transport semi-trailer fire fighting teaching equipment - Google Patents

Abstract

The invention relates to a fire-fighting teaching device of an LNG transport semitrailer, which comprises: the inner part of the tank body is fixedly provided with two compartment plugging plates vertical to the axis of the tank body, and a compartment is formed between the two compartment plugging plates; the operation box is fixedly arranged at the right end of the tank body and is communicated with the compartment through a pipeline; the mounting frame is used for supporting the tank body, and a rotary driving mechanism for driving the tank body to rotate circumferentially is arranged between the mounting frame and the tank body; the fixing frame is arranged below the mounting frame, and an angle adjusting device is arranged between the fixing frame and the mounting frame and used for adjusting the front and back inclination angles of the mounting frame and the tank body.

Description

A kind of LNG transport semi-trailer fire fighting teaching equipment

technical field

The invention relates to a fire-fighting teaching equipment for an LNG transport semi-trailer, and specifically belongs to the technical field of fire-fighting teaching equipment.

Background technique

Liquefied Natural Gas (LNG) is a colorless, odorless, high calorific value liquid. Its main danger lies in its flammable and explosive characteristics. In addition, LNG also has dangers such as boiling and tumbling, low-temperature frostbite, low-temperature anesthesia, asphyxiation, and cold explosion. LNG tanker is a special vehicle for transporting LNG. In the event of a car accident on an LNG tanker, professional and careful handling is required to minimize the damage. However, due to the fact that the current firefighters are not familiar with the internal structure and operation methods of the LNG tanker, they often do not know how to deal with the relevant accidents quickly and effectively, resulting in a delay in the best rescue time and a series of problems. even serious consequences.

In view of the above problems, the present invention provides an LNG transport semi-trailer firefighting teaching equipment, which is designed according to the original real transport tank, the internal and external structure is the same as the real transport tank, and is designed with a visual window and an external lighting system, which can be seen. To the specific structure inside and outside the tank, a full set of all-true valves, cut-off devices, and safety devices are used to conduct practical learning, achieving a 100% real experience in terms of vision and touch. By configuring pressurized gas cylinders and special joints for fire hoses, real drills can be performed. Quickly guide liquid, drain, etc.; through remote control, the gas phase and liquid phase states of the tank under various postures such as 0~360° and forward tilting, backward tilting and other three-dimensional space postures of the tank can be simulated realistically, and the rollover and tilting can be performed. Emergency drills for all abnormal conditions; can realize accidental leakage simulation, including gas phase, liquid phase leakage simulation, etc; Simulate real-life scenarios such as valve opening and closing, and emptying.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a fire-fighting teaching device for LNG transport semi-trailer that can simulate various unexpected and abnormal real scenarios and conduct full-real emergency drills.

In order to solve the above problems, the technical scheme adopted by the present invention is:

An LNG transport semi-trailer fire fighting teaching equipment, comprising:

The tank body is fixed with two compartment blocking plates perpendicular to the axis of the tank body, and a compartment is formed between the two compartment blocking plates;

an operation box, fixed on the right end of the tank body, and communicated with the compartment through a pipeline;

a mounting frame, used for supporting the tank body, a rotary drive mechanism for driving the tank body to rotate in the circumferential direction is arranged between the mounting rack and the tank body;

The fixing frame is arranged below the installation frame, and an angle adjusting device is arranged between the fixing frame and the installation frame to adjust the front and rear inclination angles of the installation frame and the tank body.

As a further improvement of the present invention, the rotation driving mechanism includes an arc-shaped or annular track arranged outside the tank body, a roller arranged on the mounting frame, and a driving mechanism for driving the roller to rotate , the roller is adapted to the track.

As a further improvement of the present invention, the angle adjustment device includes rotating rods arranged at the left and right ends of the mounting frame, the rotating rods are set on the mounting frame through bearing seats, and the fixing frame is provided with a support for the mounting frame. The support column of the rotating rod, the top of the supporting column is provided with an arc-shaped groove matching the rotating rod, and the mounting frame and the tank can swing back and forth respectively around the two rotating rods as axes; the The angle adjustment device further includes two lifting mechanisms arranged between the fixing frame and the mounting frame, and the two lifting mechanisms are respectively located on the left and right sides of the fixing frame.

As a further improvement of the present invention, the lifting mechanism includes a worm wheel screw lift and a servo motor driving the worm wheel screw lift. The worm wheel screw lift is provided with a horizontal input shaft and a vertical screw, so The bottom of the worm wheel screw lift is hinged with the worm wheel screw lift hinge seat fixed on the fixing frame, and the upper end of the screw rod is hinged with the rotating rod; the servo motor is hinged through the servo motor The seat is hingedly arranged on the fixing frame, and the output shaft of the first servo motor is connected with the input shaft of the worm gear screw lifter.

As a further improvement of the present invention, the angle adjustment device includes suspension brackets arranged on the left and right sides of the middle part of the mounting bracket, and brackets for supporting the suspension brackets are arranged on the fixed bracket, and the suspension brackets and the brackets pass through the brackets. The hinge shafts are hinged together, and the mounting frame and the tank can swing forward and backward around the hinge shaft as a whole; the angle adjustment device further includes a lifting mechanism arranged between the fixing frame and the mounting frame.

As a further improvement of the present invention, the lifting mechanism includes a telescopic oil cylinder hingedly arranged on the fixing frame, the oil cylinder rod, the connecting arm and the supporting arm of the telescopic oil cylinder are hinged to each other, and the other end of the connecting arm is hinged to each other. The other end of the support arm is hinged with the fixing frame.

As a further improvement of the present invention, the operation box is communicated with the bottom of the compartment through the liquid phase inlet and outlet pipelines and the booster pipeline, and is connected to the bottom of the compartment through the liquid level gauge gas phase pipeline, the gas phase inlet and outlet pipelines, the full measurement pipeline and the upper inlet and outlet pipelines. The liquid pipe is communicated with the top of the compartment, and the liquid inlet and outlet of the operation box are equipped with special joints for fire hoses.

As a further improvement of the present invention, the operation box includes:

A pneumatic emergency shut-off device, which includes an emergency shut-off valve and a pneumatic control system, the emergency shut-off valve includes a liquid-phase emergency shut-off valve, a pressurized emergency shut-off valve and a gas-phase emergency shut-off valve, and the pneumatic control system includes a liquid Phase emergency shut-off control valve, pressurized emergency shut-off control valve and gas-phase emergency shut-off control valve, and handwheels are provided on the liquid-phase emergency shut-off valve, pressurized emergency shut-off valve and gas-phase emergency shut-off valve;

an upper liquid inlet stop valve and an upper liquid inlet one-way valve, which are connected with the upper liquid inlet pipe;

The lower inlet and outlet valve, which is connected with the liquid phase inlet and outlet pipeline;

a supercharger outlet valve, which is connected to the supercharger pipeline;

A gas phase valve, which is connected to the gas phase inlet and outlet pipelines;

an inner tank vent valve, which is arranged between the gas phase inlet and outlet pipelines and the discharge pipeline;

fullness valve, which is connected to the fullness pipeline;

The liquid phase pipeline vent valve, the booster pipeline vent valve and the gas phase pipeline vent valve are all connected to the discharge pipeline;

A liquid level gauge, an upper tube stop valve of the liquid level gauge, a lower tube stop valve of the liquid level gauge, a balance valve of the liquid level gauge and a pressure gauge, wherein the liquid level gauge is connected to the gas phase pipeline of the liquid level gauge;

a combined safety valve, which is arranged between the gas inlet and outlet pipelines and the discharge pipeline, and includes two parallel safety valves, and the two safety valves are connected to the three-way ball valve;

a vacuum valve, which is communicated with the interlayer between the outer tank and the inner tank of the tank body;

A flame arrester is provided on the discharge pipeline.

As a further improvement of the present invention, the tank body is provided with a visual window and an external lighting system for illuminating the inside of the tank body, and the tank body is also provided with an explosive character mark and a reflective mark.

As a further improvement of the present invention, the fire protection teaching equipment is provided with a protective fence outside, and an infrared detection device is arranged in the protective fence to detect the number of internal personnel and prevent personnel from being injured due to equipment failure.

The beneficial effects produced by the above technical solutions are:

The invention provides a fire-fighting teaching equipment for LNG transport semi-trailer, which is designed according to the real transport tank body of the original factory. The specific structure adopts a full set of full-true valves, cut-off devices, and safety devices to conduct practical learning to achieve a 100% real experience in visual and tactile sense. The pressurized gas cylinder is pressurized, which can be used to practice rapid liquid introduction, drainage, etc.; through remote control, it can realistically simulate the gas phase, In the liquid phase state, carry out full emergency drills for abnormal situations such as rollover and tilt; it can realize accidental leakage simulation, including gas phase and liquid phase leakage simulation, etc.; set up a 0.1MPa booster device, which can simulate liquid injection, air injection, and safety valve take-off and other abnormal states; an operation box is set up, which can simulate real scenes such as valve opening and closing, and emptying.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of the front structure of the present invention.

FIG. 2 is a left view structural schematic diagram of the present invention.

Figure 3 is a schematic view of the internal structure of the present invention.

FIG. 4 is a schematic view of the structure of the present invention from the right side.

FIG. 5 is a schematic structural diagram of the fixing frame and the mounting frame in the present invention.

FIG. 6 is another structural schematic diagram of the fixing frame and the mounting frame in the present invention.

FIG. 7 is a schematic structural diagram of the mounting frame and the suspension frame in the present invention.

FIG. 8 is a schematic diagram of another front view structure in the present invention.

FIG. 9 is another left-side structural schematic diagram of the present invention.

FIG. 10 is a schematic structural diagram of the worm gear and screw elevator in the present invention.

FIG. 11 is a schematic structural diagram of a support column and a card seat in the present invention.

FIG. 12 is a schematic structural diagram of a servo motor 1 in the present invention.

Among them: 1 tank, 1-1 outer tank, 1-2 inner tank, 2 explosion characters, 3 reflective signs, 4 tracks, 5 rollers, 6 supports, 7 beams, 8 longitudinal beams, 9 suspension frames, 10 brackets , 11 fixed frame, 12 telescopic cylinder, 13 cylinder rod, 14 support arm, 15 connecting arm, 16 operation box, 17 compartment blocking plate, 18 liquid level gauge gas phase pipeline, 19 gas phase inlet and outlet pipeline, 20 full measuring tube Road, 21 upper liquid inlet pipe, 22 liquid phase inlet and outlet pipeline, 23 booster pipeline, 24 coupling, 25 worm wheel screw lift hinge joint seat, 26 worm wheel screw lift, 26-1 connecting plate one, 27 screw rod , 28 input shaft, 29 bearing seat, 30 rotating rod, 31 supporting column, 32 card seat, 33 arc groove, 34 way hole, 35 servo motor one hinge seat, 36 servo motor one, 36-1 connecting plate two , 37 external lighting system, 38 visual window, 39 explosion-proof vent of outer tank, 40 discharge pipeline, 41 liquid phase emergency cut-off valve, 42 pressurized emergency cut-off valve, 43 gas phase emergency cut-off valve, 44 liquid phase emergency cut-off Control valve, 45 pressurized emergency cut-off control valve, 46 gas-phase emergency cut-off control valve, 47 handwheel, 48 upper liquid inlet valve, 49 lower liquid inlet and outlet valve, 50 supercharger outlet valve, 51 gas phase valve, 52 inner tank vent valve , 53 full valve, 54 liquid phase pipeline vent valve, 55 booster pipeline vent valve, 56 gas phase pipeline vent valve, 57 liquid level gauge upper tube stop valve, 58 liquid level gauge lower tube stop valve, 59 liquid level Gauge balance valve, 60 liquid level gauge, 61 pressure gauge, 62 combined safety valve, 63 three-way ball valve, 64 vacuum valve, 65 air brake device, 66 flame arrester, 67 pressurized gas cylinder, 68 servo motor two.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the invention will be clearly and completely described below in conjunction with specific embodiments. It should be understood that the terms "center", "vertical", "horizontal", "upper" , "bottom", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outer", etc. The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation of the present invention.

The two ends/front and rear of the tank body 1 , the mounting frame and the fixing frame 11 in this embodiment, taking FIG. 1 as an example, refers to the left and right ends in FIG. 1 ; 2 as an example, it refers to the left and right sides in FIG. 2 ; the circumferential rotation of the tank body 1 refers to the rotation of the tank body 1 with the axis of the tank body as the axis of rotation.

As shown in Figure 1-Figure 12, a fire fighting teaching equipment for LNG transport semi-trailer includes:

The tank body 1 is cylindrical and closed at both ends. Two compartment blocking plates 17 perpendicular to the axis of the tank body 1 are fixed inside, and a compartment is formed between the two compartment blocking plates 17 , the compartment can be filled with water or other liquids, and the compartment and water are used to simulate the tank body 1 and the liquid phase, which greatly reduces the weight of the tank body 1 and facilitates the rollover of the tank body 1. Inclined, and can truly present the inclined state of the liquid phase; the right end of the tank body 1 is provided with an operation box 16, and the operation box 16 is communicated with the compartment through a pipeline, and the pipeline includes a liquid level gauge gas pipe pipeline 18, gas phase inlet and outlet pipeline 19, full measurement pipeline 20, upper liquid inlet pipeline 21, liquid phase inlet and outlet pipeline 22 and booster pipeline 23; the operation box 16 passes through the liquid phase inlet and outlet pipeline 22 and the booster pipeline 23 is communicated with the bottom of the compartment, and is communicated with the top of the compartment through the liquid level gauge gas phase pipeline 18, the gas phase inlet and outlet pipeline 19, the filling pipeline 20 and the upper liquid inlet pipe 21, and the outside of the tank 1 is connected to the top of the compartment. A pressurized gas cylinder 67 is also provided. In this embodiment, a nitrogen gas cylinder is used. The pressurized gas cylinder 67 is connected to the operation box 16; Or an annular track 4 , two of the tracks 4 are located at both ends of the tank body 1 .

A mounting frame is used to support the tank body 1, a rotary drive mechanism for driving the circumferential rotation of the tank body 1 is arranged between the mounting frame and the tank body 1, and the rotary drive mechanism includes a rotary drive mechanism arranged on the tank body 1. An external arc-shaped or annular track 4, a roller 5 arranged on the mounting frame and a driving mechanism for driving the roller 5 to rotate, and the roller 5 is adapted to the track 4. In this embodiment, the mounting frame is square and includes two transverse beams 7 and two longitudinal beams 8 . The tank body 1 is arranged above the mounting frame and parallel to the longitudinal beams 8 . The beam 7 is provided with two rollers 5 through the support 6. The rollers 5 are located under both sides of the tank body 1 and are adapted to the rails 4. The rollers 5 are connected to the driving mechanism. In this embodiment , the drive mechanism is the second servo motor 68, the roller 5 is connected to the output shaft of the second servo motor 68, and the roller 5 and the track 4 are provided with anti-skid materials to prevent the roller 5 and the track 4 If sliding occurs between the two, the rubber can be fixed on the outside of the roller 5; the tank body 1 is driven by the servo motor 2 68 to simulate a rollover at any angle within 360°; in this embodiment, the two ends of the mounting frame are A synchronously rotating servo motor II 68 is connected to the roller 5 , the middle of the track 4 is low, and edges are provided on both sides, and the roller 5 is stuck in the track 4 to prevent it from slipping out of the track 4 .

The fixing frame 11 is arranged below the installation frame, and an angle adjusting device is arranged between the fixing frame 11 and the installation frame to adjust the front and rear inclination angles of the installation frame and the tank body 1 .

As an embodiment, the angle adjustment device includes rotating rods 30 disposed at the left and right ends of the mounting frame, the rotating rods 30 are set on the mounting frame through the bearing seat 29 , and the fixing frame 11 is provided with The support column 31 supporting the rotating rod 30, the top of the supporting column 31 is provided with an arc-shaped groove 33 that is adapted to the rotating rod 30, and the mounting frame and the tank 1 can respectively surround two of the The rotating rod 30 swings back and forth; the angle adjustment device also includes two lifting mechanisms arranged between the left and right ends of the fixing frame 11 and the mounting frame, and the two lifting mechanisms are located on the left and right sides of the fixing frame 11 respectively. . In this embodiment, the lifting mechanism includes a worm wheel screw lifter 26 and a servo motor 36 driving the worm wheel screw lifter 26. The worm wheel screw lifter 26 is provided with a horizontal input shaft 28 and a vertical wire rod. Rod 27, the bottom of the worm wheel screw lift 26 is hinged with the worm wheel screw lift hinge seat 25 fixed on the fixing frame 11, and the upper end of the screw rod 27 is hinged with the rotating rod 30; the The servo motor one 36 is hingedly arranged on the fixing frame 11 through a servo motor one hinge seat 35 , and the output shaft of the servo motor one 36 is connected with the input shaft 28 on the worm gear screw lifter 26 .

In this embodiment, the lifting mechanism includes two worm wheel screw lifts 26, the worm wheel screw lifts 26 are arranged on both sides of the end of the fixing frame 11, and the bottom of the worm wheel screw lift 26 is provided with a connecting plate One 26-1, the connecting plate one 26-1 is hinged with the worm gear lifter hinge seat 25 fixed on the fixing frame 11, and the rotating rod 30 is set on the mounting frame through the bearing seat 29 on the beam 7 at the end; the middle part of the end of the fixing frame 11 is hinged with the connecting plate two 36-1 fixed on the servo motor one 36 through a servo motor one hinge seat 35, and the servo motor one 36 is The two output shafts of the double output shaft motor are respectively connected with the input shafts 28 on the two worm gear lifters 26 at the same end of the fixed frame 11 through the coupling 24; the support column 31 is fixed on the The two ends of the fixing frame 11 are provided with two at one end, which are located between the hinge connection seat 25 of the worm gear screw lifter and the hinge connection seat 35 of the servo motor. The top of the card seat 32 is provided with an arc-shaped groove 33 which is adapted to the rotating rod 30 , and the support column 31 is provided with a receding hole 34 corresponding to the output shaft of the servo motor one 36 . When adjusting the front and rear inclination angles of the mounting frame and the tank body 1, the screw rod 27 of the worm gear screw lifter 26 is driven up and down by the servo motor one 36 at one end of the fixing frame 11, thereby driving the mounting frame and the tank body. 1 This end is lifted and lowered, and the other end of the mounting frame and the tank body 1 rotates with the rotating rod 30 clamped in the arc-shaped groove 33 as the rotating shaft (the servo motor 1 36 at this end does not work), thereby Carry out the adjustment of the inclination angle of the mounting frame and the tank body 1, simulate the adjustment of the inclination angle of the tank body 1, carry out the simulation of the gas phase and liquid phase state under various postures of the tank body 1, and perform rollover, tilt, etc. Emergency drills for abnormal situations. The two worm gear screw lift hinge seats 25 at the same end of the fixed frame 11 coincide with the rotation axes of the hinge joint seat 35 of the servo motor. When adjusting the inclination angle of the mounting frame and the tank body 1, The servo motor one 36 rotates synchronously with the worm gear screw lifter 26 , and the setting of the abdication hole 34 can prevent the output shaft of the servo motor one 36 from interfering with the support column 31 .

As another embodiment, the angle adjustment device includes suspension brackets 9 arranged on the left and right sides of the middle of the mounting bracket, and brackets 10 for supporting the suspension bracket 9 are arranged on the fixing bracket 11 . On each side of the frame 11, two brackets 10 are fixed on both sides of the suspension frame 9, the suspension frame 9 and the bracket 10 are hinged together by a hinge shaft, and the mounting frame and the tank can be integrated around the place. The hinge shaft swings back and forth. The angle adjustment device further includes a lifting mechanism arranged between the fixing frame 11 and the mounting frame. The lifting mechanism includes a telescopic oil cylinder 12 hingedly arranged on the fixing frame 11 . The oil cylinder of the telescopic oil cylinder 12 The rod 13 , the connecting arm 15 and the supporting arm 14 are hinged to each other, the other end of the connecting arm 15 is hinged with the beam 7 of the mounting frame, and the other end of the supporting arm 14 is hinged with the fixing frame 11 even.

The mounting frame and the tank body 1 can be rotated by the hinge shaft at the hinge of the bracket 10 and the hanger 9 as the rotation axis. Telescopic changes the state of the connecting arm 15 and the support arm 14, and drives the mounting frame and the tank body 1 to incline, so as to adjust the inclination angle of the mounting frame and the tank body 1, and carry out various postures of the tank body 1. The gas phase and liquid phase state, and conduct emergency drills for abnormal situations such as rollover and tilt.

The operation box 16 includes:

The pneumatic emergency cut-off device includes an emergency cut-off valve and a pneumatic control system. The emergency cut-off valve includes a liquid phase emergency cut-off valve 41, a pressurized emergency cut-off valve 42 and a gas phase emergency cut-off valve 43, which are respectively installed in the On the liquid phase inlet and outlet pipeline 22, the booster pipeline 23 and the gas phase inlet and outlet pipeline 19 in the tank 1, the pneumatic control system includes a liquid phase emergency cut-off control valve 44, a pressurization emergency cut-off control valve 45 and a gas phase emergency cut-off control valve 45. A hand wheel 47 is provided on the cut-off control valve 46 , the liquid phase emergency cut-off valve 41 , the pressurization emergency cut-off valve 42 and the gas phase emergency cut-off valve 43 . The slam shut-off valve can be opened or closed by the pneumatic control system or handwheel 47 .

The upper liquid inlet stop valve 48 and the upper liquid inlet one-way valve are connected in series and connected to the upper liquid inlet pipe 21. They are opened when the upper liquid inlet is in, and closed after filling to prevent the liquid from flowing back.

The lower liquid inlet and outlet valve 49 is connected to the liquid phase inlet and outlet pipeline 22, which is opened when loading and unloading liquid, and closed after filling or unloading.

The supercharger outlet valve 50, which is connected to the supercharging pipeline 23, is opened when the liquid is unloaded and pressurized, and closed after the supercharging is completed.

The gas phase valve 51, which is connected to the gas phase inlet and outlet pipeline 19, is used for balancing and balancing the pressure during unloading.

The inner tank vent valve 52, which is arranged between the gas phase inlet and outlet pipeline 19 and the discharge pipeline 40, is used when the internal pressure of the tank body 1 reaches or exceeds the working pressure to discharge the pressure.

The fullness valve 53 is connected to the fullness pipeline 20. When the liquid level gauge 60 shows that the tank body 1 is nearly full, open the fullness valve 53. If liquid is discharged, it means that the tank body 1 is full and should be stopped. refill.

The liquid phase pipeline vent valve 54, the booster pipeline vent valve 55 and the gas phase pipeline vent valve 56 are all connected to the discharge pipeline 40, and are used to discharge residual LNG and gas in the pipeline after loading and unloading.

The safety valve of the liquid phase pipeline and the safety valve of the booster pipeline are both connected to the discharge pipeline 40 to prevent the residual LNG gasification overpressure in the pipeline and discharge the pressure in the pipeline.

The liquid level gauge 60 and the liquid level gauge upper pipe cut-off valve 57, the liquid level gauge lower pipe cut-off valve 58, the liquid level gauge balance valve 59 and the pressure gauge 61, wherein the liquid level gauge 60 is connected with the liquid level gauge gas phase pipeline 18 .

The combined safety valve 62, which is arranged between the gas phase inlet and outlet pipeline 19 and the discharge pipeline 40, includes two parallel safety valves, and the two safety valves are connected to the three-way ball valve 63, and the pressure inside the tank 1 When abnormally rising, the safety valve is opened to release the pressure in the tank 1, and the three-way ball valve 63 is used for overhauling the safety valve.

The vacuum valve 64 communicates with the interlayer between the outer tank 1-1 and the inner tank 1-2.

The flame arrester 66 is arranged on the discharge pipeline 40 to block the flame from entering the tank body 1 through the discharge pipeline 40 when the tanker is at the fire scene.

The air cut-off brake device 65 can be activated when the vehicle is in contact with the braking state after the tank door is closed after loading and unloading of fluid.

Vacuum isolation valve and vacuum gauge, during the annual inspection of the tanker, measure the vacuum degree in the interlayer, and it is strictly forbidden to open it at ordinary times.

In this embodiment, the tank body 1 includes an outer tank 1-1 and an inner tank 1-2 that are fixed together. The inner tank 1-2 is made of all stainless steel, and is wound with multiple layers of thermal insulation materials. The heat insulating material is made of aluminum foil and heat insulating paper. The right end of the outer tank 1-1 is provided with an outer tank explosion-proof vent 39. The diameter of the tank body 1 is the same as that of the real transport tank body, and the length is shorter than that of the real transport tank body. The tank body 1 is provided with a number of anti-wave plates. The left end of the tank body 1 is provided with a visual window 38 and an external lighting system 37 for illuminating the interior of the tank body 1. The tank body 1 is also provided with an explosion character mark 2 and a reflective mark 3. 1 and the operation box 16 are painted in different colors for different purposes. It is designed according to the real transport tank of the original factory, the internal and external structure is the same as the real transport tank, and is designed with a visual window 38 and an external lighting system 37, you can see the internal and external structure of the tank 1, using a full set of full-true valves, cut-off It can simulate real scenes such as valve opening and closing and emptying, and realize 100% real experience in visual and tactile sense. The liquid inlet and outlet and the gas inlet and outlet of the operation box 16 are equipped with special joints for fire hoses. By configuring the pressurized gas cylinder 67 and the special joint of the fire hose, the pressurized gas cylinder 67 is used to pressurize the liquid when conducting liquid and discharging. It can be used to practice fast fluid drainage and drainage. When conducting and draining the liquid, it is carried out according to the turning angle of the tank body 1. When the turning angle of the tank body 1 is less than 90°, the liquid is drained through the liquid phase inlet and outlet pipeline 22, and the liquid inlet and outlet of the operation box 16 are passed through the fire water. With quick discharge; when the turning angle of the tank body 1 is greater than 90°, the upper liquid inlet pipe 21 or the gas phase inlet and outlet pipeline 19 is selected according to the situation to discharge the liquid, and the liquid is quickly discharged from the liquid inlet and outlet of the operation box 16 or the gas inlet and outlet through the fire hose .

The servo motor one 36 and the servo motor two 68 are electrically connected to the controller respectively, and through remote control, the gas phase of the tank body under various postures of the tank body under the three-dimensional space postures such as 0-360° and forward tilting and backward tilting can be simulated realistically. , liquid phase, and conduct emergency drills for abnormal situations such as rollover and tilt. Accidental leakage simulation can also be realized, including gas phase, liquid phase leakage simulation, etc. The liquid level gauge gas phase pipeline 18, gas phase inlet and outlet pipeline 19, full measurement pipeline 20, upper liquid inlet pipe 21, liquid phase inlet and outlet pipeline 22 and The booster pipeline 23 is provided with a branch pipeline and a valve on the branch pipeline. By controlling the opening of the valve, the simulation of gas phase and liquid phase leakage can be realized; connected, and a 0.1MPa pressurization device is set up, so that the air pressure of the compartment is 0.1MPa, which can simulate abnormal states such as liquid spraying, air jetting, and safety valve jumping. , the gas phase inlet and outlet pipelines 19, the full measurement pipeline 20, the upper liquid inlet pipeline 21, the liquid phase inlet and outlet pipelines 22 and the valves on the booster pipeline 23 are opened, and the safety valve must be set in advance when the safety valve takes off. is lower than 0.1MPa, when the given pressure is 0.1MPa, the safety valve automatically jumps.

In addition, an electric control operation box is also provided outside the tank body 1 . The bottom of the tank body 1 is provided with a conductive grounding belt, which is in contact with the ground and generates static electricity at any time. The fire protection teaching equipment is provided with a protective fence outside, and an infrared detection device is arranged inside the protective fence to detect the number of internal personnel and prevent personnel from being injured due to equipment failure.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions in the embodiments of the present invention.

Claims (10)

1. a LNG transport semi-trailer fire fighting teaching equipment, is characterized in that: it comprises: The tank body (1) is fixedly provided with two compartment blocking plates (17) perpendicular to the axis of the tank body (1), and a compartment is formed between the two compartment blocking plates (17); An operation box (16), fixed on the right end of the tank body (1), is communicated with the compartment through a pipeline; a mounting frame, used for supporting the tank body (1), a rotary drive mechanism for driving the tank body (1) to rotate in the circumferential direction is provided between the mounting frame and the tank body (1); A fixing frame (11), which is arranged below the mounting frame, and an angle adjusting device is arranged between the fixing frame (11) and the mounting frame, for adjusting the front and rear inclination angles of the installation frame and the tank body (1) . 2. An LNG transport semi-trailer fire-fighting teaching equipment according to claim 1, characterized in that: the rotary drive mechanism comprises an arc-shaped or annular track ( 4), and a roller (5) arranged on the mounting frame and a driving mechanism for driving the roller (5) to rotate, and the roller (5) is adapted to the track (4). 3. The fire-fighting teaching equipment for an LNG transport semi-trailer according to claim 1, characterized in that: the angle adjustment device comprises rotating rods (30) arranged at the left and right ends of the mounting frame, and the rotating rods (30) ) is arranged on the mounting frame through a bearing seat (29), a supporting column (31) supporting the rotating rod (30) is arranged on the fixing frame (11), and a top of the supporting column (31) is provided with An arc-shaped groove (33) adapted to the rotating rod (30), the mounting frame and the tank body (1) as a whole can swing back and forth respectively around the two rotating rods (30) as axes; the angle The adjusting device further includes two lifting mechanisms arranged between the fixing frame (11) and the mounting frame, and the two lifting mechanisms are respectively located on the left and right sides of the fixing frame (11). 4. An LNG transport semi-trailer firefighting teaching equipment according to claim 3, characterized in that: the lifting mechanism comprises a worm wheel screw lift (26) and a servo motor that drives the worm wheel screw lift (26). (36), the worm gear screw lift (26) is provided with a horizontal input shaft (28) and a vertical screw (27), and the bottom of the worm gear screw lift (26) is fixed on the fixed The worm gear screw lift hinge seat (25) on the frame (11) is hinged, and the upper end of the screw rod (27) is hinged with the rotating rod (30); the servo motor one (36) is connected by a servo motor one The hinge seat (35) is hingedly arranged on the fixing frame (11), and the output shaft of the first servo motor (36) is connected with the input shaft (28) on the worm gear lifter (26). 5. The fire-fighting teaching equipment for an LNG transport semi-trailer according to claim 1, characterized in that: the angle adjusting device comprises suspension frames (9) arranged on the left and right sides of the middle of the mounting frame, and the fixing frame (11) is provided with a bracket (10) for supporting the hanger (9), the hanger (9) and the bracket (10) are hinged together through a hinge shaft, and the mount and the tank ( 1) The whole can swing back and forth around the hinge shaft; the angle adjustment device further includes a lifting mechanism arranged between the fixing frame (11) and the mounting frame. 6. An LNG transport semi-trailer firefighting teaching equipment according to claim 5, characterized in that: the lifting mechanism comprises a telescopic oil cylinder (12) hingedly arranged on the fixing frame (11), the telescopic The oil cylinder rod (13), the connecting arm (15) and the supporting arm (14) of the oil cylinder (12) are hinged with each other, and the other end of the connecting arm (15) is hinged with the beam (7) of the mounting frame , the other end of the support arm (14) is hingedly connected with the fixing frame (11). 7. An LNG transport semi-trailer firefighting teaching equipment according to claim 1, characterized in that: the operation box (16) communicates with the The bottom of the compartment is communicated with the top of the compartment through the liquid level gauge gas phase pipeline (18), the gas phase inlet and outlet pipeline (19), the full measurement pipeline (20) and the upper liquid inlet pipe (21). The liquid inlet and outlet of the operation box (16) are equipped with special joints for fire hoses. 8. The fire-fighting teaching equipment for an LNG transport semi-trailer according to claim 1, wherein the operation box (16) comprises: A pneumatic emergency shut-off device, comprising an emergency shut-off shut-off valve and a pneumatic control system, the emergency shut-off shut-off valve includes a liquid-phase emergency shut-off shut-off valve (41), a pressurized emergency shut-off shut-off valve (42) and a gas-phase emergency shut-off shut-off valve (43) ), the pneumatic control system includes a liquid-phase emergency cut-off control valve (44), a pressurized emergency cut-off control valve (45) and a gas-phase emergency cut-off control valve (46), the liquid-phase emergency cut-off valve (41), the booster A handwheel (47) is provided on the pressure emergency cut-off valve (42) and the gas phase emergency cut-off valve (43); an upper liquid inlet stop valve (48) and an upper liquid inlet check valve, which are connected to the upper liquid inlet pipe (21); a lower liquid inlet and outlet valve (49), which is connected with the liquid phase inlet and outlet pipeline (22); a supercharger outlet valve (50), which is connected to the supercharger pipeline (23); a gas phase valve (51), which is connected with the gas phase inlet and outlet pipeline (19); an inner tank vent valve (52), which is arranged between the gas phase inlet and outlet pipeline (19) and the discharge pipeline (40); fullness valve (53), which is connected to the fullness pipeline (20); The liquid phase pipeline vent valve (54), the booster pipeline vent valve (55) and the gas phase pipeline vent valve (56), all of which are connected to the discharge pipeline (40); A liquid level gauge (60), a liquid level gauge upper pipe stop valve (57), a liquid level gauge lower pipe stop valve (58), a liquid level gauge balance valve (59) and a pressure gauge (61), wherein the liquid level gauge (60) is connected to the gas phase pipeline (18) of the liquid level gauge; A combined safety valve (62), which is arranged between the gas phase inlet and outlet pipelines (19) and the discharge pipeline (40), includes two parallel safety valves, two safety valves and a three-way ball valve (63) ) connected; a vacuum valve (64), which is communicated with the interlayer between the outer tank (1-1) and the inner tank (1-2) of the tank body (1); A flame arrester (66) is provided on the discharge pipeline (40). 9. An LNG transport semi-trailer fire fighting teaching equipment according to claim 1, characterized in that: the tank body (1) is provided with a viewing window (38) and a window (38) for illuminating the interior of the tank body (1) The external lighting system (37) is provided, and the tank body (1) is also provided with a character explosion mark (2) and a reflective mark (3). 10. An LNG transport semi-trailer fire-fighting teaching equipment according to claim 1, characterized in that: the fire-fighting teaching equipment is provided with a protective fence outside, and an infrared detection device is arranged in the protective fence for detecting internal personnel Quantity to prevent equipment failure and cause personal injury.

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