A transport device and a transport method for liquid ammonia

Abstract

The application is suitable for the technical field of liquid ammonia transportation, and provides a liquid ammonia transportation device and a transportation method.The device comprises a storage tank fixedly installed on a tank truck;the storage tank comprises an outer shell, an inner shell and a tank body coaxially arranged from outside to inside;the tank body is provided with a spiral placing groove on the peripheral side surface;the tank body is provided with a heat rod assembly matched with the spiral placing groove on the peripheral side surface;the heat rod assembly comprises a spiral steel pipe;vertical steel pipes are uniformly arranged on the spiral steel pipe along the length direction;heat dissipation fins are uniformly arranged on the peripheral side surface of the vertical steel pipe;the spiral steel pipe is filled with liquid working medium;a conduction cavity is formed between the tank body and the inner shell;and a heat dissipation cavity is formed between the outer shell and the inner shell.The device replaces the traditional cold water tank by additionally arranging the heat rod assembly, and cooperates with the high-speed flowing air to continuously dissipate heat, so that the tank body in the conduction cavity is in a low-temperature state, thereby reducing the transportation cost and improving the safety performance of transportation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid ammonia transportation, and more particularly to a liquid ammonia transportation device and method. BACKGROUND

[0002] Liquid ammonia, also known as anhydrous ammonia, is a colorless liquid with a strong pungent odor. Ammonia, as an important chemical raw material, is usually obtained by pressurization or cooling of gaseous ammonia to obtain liquid ammonia for convenient transportation and storage. Liquid ammonia is usually stored in pressure-resistant steel cylinders or steel tanks. With the wide application of liquid ammonia, liquid ammonia is generally transported by liquid ammonia transport vehicles. However, in high-temperature weather conditions, the liquid ammonia in the transport vehicle may react due to the hot weather, posing a danger to people.

[0003] According to the search, a liquid ammonia tank car for liquid ammonia transportation disclosed in CN216401286U includes a shell, an ammonia storage tank fixedly connected inside the shell, a water storage tank fixedly connected to the top of the shell, and a water suction pump fixedly connected to the inner wall bottom of the water storage tank. The liquid ammonia tank car improves the cooling effect of the ammonia storage tank through the cooperation between the heat absorbing block, sliding plate, electrode sheet, extension spring and connecting rope, and automatically opens without manual operation, improving the work efficiency of the workers.

[0004] However, the liquid ammonia tank car sets a water storage tank on the ammonia storage tank to provide a cold source, which increases the weight of the liquid ammonia tank car, increases its inertia, increases the risk of transportation, increases fuel consumption and transportation costs. In addition, in order to ensure the continuous provision of cold water by the water storage tank, a refrigeration device needs to be added, further increasing the transportation cost. SUMMARY

[0005] In view of the deficiencies in the prior art, the present application aims to provide a liquid ammonia transportation device and method that replaces the traditional cold water tank with a heat rod assembly for sustainable heat dissipation with high-speed air flow, keeping the tank inside the conduction cavity in a low-temperature state, reducing transportation costs while improving the safety performance of transportation.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The utility model provides a kind of liquid ammonia transport device, including fixed installation on tank truck storage tank;The storage tank includes from outside to inside coaxial shell, inner shell and tank; First connecting plate is uniformly arranged between the shell and inner shell;Second connecting plate is uniformly arranged between the inner shell and tank;Spiral placing groove is opened in the tank lateral surface;Through hole is uniformly opened in the inner shell lateral surface along length direction;The tank lateral surface is provided with the heat bar assembly compatible with spiral placing groove;The heat bar assembly includes spiral steel pipe;Vertical steel pipe is uniformly arranged on the spiral steel pipe along length direction;Radiating fin is uniformly arranged on the vertical steel pipe lateral surface;The spiral steel pipe is filled with liquid working medium;Conduction cavity is formed between the tank and inner shell;Heat dissipation cavity is formed between the shell and inner shell;The spiral steel pipe is in the conduction cavity;The radiating fin is in the heat dissipation cavity;The vertical steel pipe penetrates through through hole.

[0008] The utility model further provides: the spiral steel pipe and each vertical steel pipe are seamless steel pipes made of carbon;Each vertical steel pipe is communicated with the spiral steel pipe;Each vertical steel pipe and the spiral steel pipe form closed hollow inner chamber;The liquid working medium is liquid ammonia.

[0009] The utility model further provides: one end of the shell and the inner shell is open setting;First ventilation hole is uniformly opened in the closed end of the shell;The side of first connecting plate and second connecting plate is opened with communicating groove;First heat insulation layer is arranged on the inner circumferential surface of the shell;Second heat insulation layer is arranged on the inner circumferential surface of the inner shell.

[0010] The utility model further provides: the tank is closed at both ends, and one end is penetrated with feed pipe;Stop valve is arranged on the feed pipe;Person access channel is sequentially penetrated through inner shell, shell and extends outward on the tank lateral surface;Person access cover is fixedly connected with the end of person access channel by fastening bolt.

[0011] The utility model further provides: the tank is welded with wave breaker and is linearly arrayed along length direction inside;Flow guide hole and through hole are sequentially opened on the side of wave breaker;Flow guide hole and through hole are staggered arrangement;Person access hole is opened on the side of wave breaker;The person access of adjacent wave breaker is staggered arrangement.

[0012] The utility model further provides: sleeve is fixedly connected at the open end of the shell;Auxiliary heat dissipation part is inserted and connected in the inside of sleeve;The auxiliary heat dissipation part includes built-in cover inserted in the inside of sleeve;The built-in cover is fixedly installed on the end of shell by fastening bolt;Sealing plug plate is inserted and connected on the open end of inner shell on the side of built-in cover.

[0013] The application further provides that: the inner lid side is uniformly provided with second ventilation holes on the outer side of the sealing plug plate; the inner lid is provided with an outer lid on the circumferential side; and the outer lid side is uniformly provided with third ventilation holes.

[0014] The application further provides that: the inner lid inner side is provided with rotating shafts in a circumferential array; the rotating shaft ends are provided with cooling fans; the inner lid inner side is uniformly provided with mounting shells; the mounting shells are fixedly provided with servo motors; the remaining mounting shells are fixedly provided with generators; the servo motor output end is fixedly connected with the uppermost rotating shaft; the generator input ends are fixedly connected with the corresponding rotating shafts; the inner lid inner side is sequentially provided with a battery pack and a controller; the conduction cavity is provided with a wind speed sensor; the controller input end is electrically connected with the wind speed sensor, and the output end is electrically connected with the servo motor; and the generator input ends are electrically connected with the battery pack.

[0015] A transportation method of a liquid ammonia transportation device, comprising the following steps:

[0016] T1, by fixing and installing the storage tank on the tank truck, connecting the external pipeline with the feed pipe, opening the stop valve, so that the liquid ammonia is sent into the tank through the feed pipe, after completing the feeding, closing the stop valve and unloading the external pipeline;

[0017] T2, during the driving of the tank truck, the high-speed flowing air enters the heat dissipation cavity, when the temperature inside the conduction cavity rises, the liquid working medium inside the spiral steel pipe is heated, so that the liquid working medium is gasified into gaseous working medium, under the action of pressure difference, the heat inside the conduction cavity is transmitted to the heat dissipation cavity, the heat received in the heat dissipation cavity is rapidly cooled under the action of the external high-speed flowing air, the liquid ammonia is cooled and condensed, and the liquid working medium in the conduction cavity is re-heated, through the circulation of heat absorption and heat dissipation, the tank in the conduction cavity is in a low-temperature state;

[0018] T3, during the driving of the tank truck, the high-speed flowing air drives the corresponding cooling fan to rotate, thereby driving the corresponding rotating shaft to rotate, converting the wind energy into mechanical energy, converting the mechanical energy into electrical energy through the generator, and storing the electrical energy in the battery pack, providing power for the wind speed sensor, the servo motor and the controller;

[0019] T4, when the tank truck stops, the wind speed sensor inside the conduction cavity monitors the air flow speed inside the heat dissipation cavity in real time, when there is no wind or the wind is small and lower than the set value, the wind speed sensor transmits a signal to the controller, the controller controls the servo motor to start, and drives the corresponding cooling fan to rotate, thereby speeding up the heat dissipation of the heat dissipation fins inside the heat dissipation cavity.

[0020] The application has the advantages that:

[0021] 1、The high-speed flowing air enters the heat dissipation cavity during the driving process of the tank truck, when the temperature inside the conduction cavity rises, the liquid working medium inside the spiral steel pipe is heated, so that the liquid working medium is gasified into gaseous working medium, and the heat inside the conduction cavity is transmitted to the heat dissipation cavity under the action of pressure difference, the heat received in the heat dissipation cavity is rapidly cooled under the action of the outside high-speed flowing air, the liquid ammonia is cooled and condensed, and the liquid working medium of the conduction cavity starts to absorb heat again, so that the tank inside the conduction cavity is in a low temperature state, the heat rod assembly replaces the traditional cold water tank, and sustainable heat dissipation is carried out in cooperation with the high-speed flowing air, so that the transportation cost is reduced, and the safety performance of transportation is improved.

[0022] 2、The high-speed flowing air drives the corresponding heat dissipation fan blade to rotate, so that the corresponding shaft is driven to rotate, the wind energy is converted into mechanical energy, the mechanical energy is converted into electrical energy through the generator, and is stored in the storage battery pack, so as to provide power supply for the wind speed sensor, the servo motor and the controller, and further reduce the transportation cost.

[0023] 3、When the tank truck stops, the wind speed sensor arranged in the conduction cavity can monitor the air flow speed inside the heat dissipation cavity in real time, when there is no wind or the wind is small and lower than the set value, the wind speed sensor transmits a signal to the controller, the servo motor is started by the controller, the corresponding heat dissipation fan blade is driven to rotate, so that the heat dissipation fins inside the heat dissipation cavity are accelerated to dissipate heat, and the practicability of the device is improved. ACCURACY

[0024] Figure 1 It is a structure schematic view of a liquid ammonia transportation device.

[0025] Figure 2 It is a structure schematic view of a storage tank.

[0026] Figure 3 It is a structure schematic view of a storage tank from a front view angle.

[0027] Figure 4 It is a structure schematic view of a storage tank from another angle.

[0028] Figure 5 It is a structure schematic view of a heat rod assembly.

[0029] Figure 6 It is a working principle schematic view of a heat rod assembly.

[0030] Figure 7 It is a structure schematic view of an auxiliary heat dissipation part.

[0031] Figure 8 Another angle of the structure of the auxiliary heat dissipation device of the present application.

[0032] Figure 9 Another angle of the structure of the auxiliary heat dissipation device of the present application.

[0033] In the figure: 1, storage tank; 2, outer shell; 3, inner shell; 4, tank; 5, first connecting plate; 6, second connecting plate; 7, spiral placement groove; 8, through hole; 9, heat rod assembly; 10, spiral steel pipe; 11, vertical steel pipe; 12, heat dissipation fin; 13, controller; 14, conduction cavity; 15, heat dissipation cavity; 16, first ventilation hole; 17, communication groove; 18, first heat insulation layer; 19, second heat insulation layer; 20, feed pipe; 21, stop valve; 22, access channel; 23, access cover; 24, wave breaker; 25, flow guide hole; 26, through hole; 27, access hole; 28, sleeve; 29, auxiliary heat dissipation device; 30, built-in cover; 31, sealing plug plate; 32, second ventilation hole; 33, external cover; 34, third ventilation hole; 35, rotating shaft; 36, heat dissipation fan blade; 37, mounting shell; 38, servo motor; 39, generator; 40, battery pack. DETAILED DESCRIPTION

[0034] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as that generally understood by those skilled in the art to which the present application belongs.

[0036] In the present application, unless otherwise specified, the orientation such as "up, down" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0037] Embodiment one

[0038] Please refer to Figures 1-9 The present application provides the following technical solutions:

[0039] The utility model provides a kind of liquid ammonia transport device, specifically, including fixed installation on tank truck storage tank 1;Storage tank 1 includes from outside to inside coaxial shell 2, inner shell 3 and tank 4;First connecting plate 5 is uniformly arranged between shell 2 and inner shell 3;Second connecting plate 6 is uniformly arranged between inner shell 3 and tank 4;Tank 4 circumferential surface is provided with spiral placement groove 7;Through hole 8 is uniformly provided on the length direction of the circumferential surface of inner shell 3;Tank 4 circumferential surface is provided with heat rod assembly 9 matched with spiral placement groove 7;Heat rod assembly 9 includes spiral steel pipe 10;Vertical steel pipe 11 is uniformly arranged on the length direction of spiral steel pipe 10;Radiating fin 12 is uniformly arranged on the circumferential surface of vertical steel pipe 11;Spiral steel pipe 10 is filled with liquid working medium;Conduction cavity 14 is formed between tank 4 and inner shell 3;Heat dissipation cavity 15 is formed between shell 2 and inner shell 3;Spiral steel pipe 10 is in conduction cavity 14;Radiating fin 12 is in heat dissipation cavity 15;Vertical steel pipe 11 penetrates through hole 8.

[0040] The utility model discloses a kind of liquid ammonia transport device, specifically, including fixed installation on tank truck storage tank 1;Storage tank 1 includes from outside to inside coaxial shell 2, inner shell 3 and tank 4;First connecting plate 5 is uniformly arranged between shell 2 and inner shell 3;Second connecting plate 6 is uniformly arranged between inner shell 3 and tank 4;Tank 4 circumferential surface is provided with spiral placement groove 7;Through hole 8 is uniformly provided on the length direction of the circumferential surface of inner shell 3;Tank 4 circumferential surface is provided with heat rod assembly 9 matched with spiral placement groove 7;Heat rod assembly 9 includes spiral steel pipe 10;Vertical steel pipe 11 is uniformly arranged on the length direction of spiral steel pipe 10;Radiating fin 12 is uniformly arranged on the circumferential surface of vertical steel pipe 11;Spiral steel pipe 10 is filled with liquid working medium;Conduction cavity 14 is formed between tank 4 and inner shell 3;Heat dissipation cavity 15 is formed between shell 2 and inner shell 3;Spiral steel pipe 10 is in conduction cavity 14;Radiating fin 12 is in heat dissipation cavity 15;Vertical steel pipe 11 penetrates through hole 8.

[0041] Embodiment two

[0042] Please refer to Figures 4-9 , the utility model discloses a kind of liquid ammonia transport device, specifically, including fixed installation on tank truck storage tank 1;Storage tank 1 includes from outside to inside coaxial shell 2, inner shell 3 and tank 4;First connecting plate 5 is uniformly arranged between shell 2 and inner shell 3;Second connecting plate 6 is uniformly arranged between inner shell 3 and tank 4;Tank 4 circumferential surface is provided with spiral placement groove 7;Through hole 8 is uniformly provided on the length direction of the circumferential surface of inner shell 3;Tank 4 circumferential surface is provided with heat rod assembly 9 matched with spiral placement groove 7;Heat rod assembly 9 includes spiral steel pipe 10;Vertical steel pipe 11 is uniformly arranged on the length direction of spiral steel pipe 10;Radiating fin 12 is uniformly arranged on the circumferential surface of vertical steel pipe 11;Spiral steel pipe 10 is filled with liquid working medium;Conduction cavity 14 is formed between tank 4 and inner shell 3;Heat dissipation cavity 15 is formed between shell 2 and inner shell 3;Spiral steel pipe 10 is in conduction cavity 14;Radiating fin 12 is in heat dissipation cavity 15;Vertical steel pipe 11 penetrates through hole 8.

[0043] The utility model discloses a kind of liquid ammonia transport device, specifically, including fixed installation on tank truck storage tank 1;Storage tank 1 includes from outside to inside coaxial shell 2, inner shell 3 and tank 4;First connecting plate 5 is uniformly arranged between shell 2 and inner shell 3;Second connecting plate 6 is uniformly arranged between inner shell 3 and tank 4;Tank 4 circumferential surface is provided with spiral placement groove 7;Through hole 8 is uniformly provided on the length direction of the circumferential surface of inner shell 3;Tank 4 circumferential surface is provided with heat rod assembly 9 matched with spiral placement groove 7;Heat rod assembly 9 includes spiral steel pipe 10;Vertical steel pipe 11 is uniformly arranged on the length direction of spiral steel pipe 10;Radiating fin 12 is uniformly arranged on the circumferential surface of vertical steel pipe 11;Spiral steel pipe 10 is filled with liquid working medium;Conduction cavity 14 is formed between tank 4 and inner shell 3;Heat dissipation cavity 15 is formed between shell 2 and inner shell 3;Spiral steel pipe 10 is in conduction cavity 14;Radiating fin 12 is in heat dissipation cavity 15;Vertical steel pipe 11 penetrates through hole 8.

[0044] Embodiment three

[0045] Please refer to Figures 1-9The third embodiment is improved on the basis of the first embodiment. Specifically, the outer shell 2 and the inner shell 3 are both provided with an open end; the outer shell 2 is uniformly provided with a first ventilation hole 16 at the closed end; the first connecting plate 5 and the second connecting plate 6 are both provided with a communication groove 17 at the side; the outer shell 2 is provided with a first heat insulation layer 18 at the inner circumferential side; the inner shell 3 is provided with a second heat insulation layer 19 at the inner circumferential side; the tank 4 is provided with a closed end at both ends, and a feeding pipe 20 is provided at one end; the feeding pipe 20 is provided with a stop valve 21; the tank 4 is provided with a human access channel 22 which penetrates the inner shell 3 and the outer shell 2 in sequence and extends outward; the human access channel 22 is fixedly connected with a human access cover 23 at the end through fastening bolts; the tank 4 is provided with a wave board 24 which is linearly arranged and welded inside along the length direction; the wave board 24 is provided with a flow guiding hole 25 and a through hole 26 at the side in sequence; the flow guiding hole 25 and the through hole 26 are arranged in a staggered manner; the wave board 24 is provided with a human access hole 27 at the side; the human access holes 27 on adjacent wave boards 24 are arranged in a staggered manner.

[0046] The working principle of the third embodiment is as follows: the first heat insulation layer 18 is arranged to reduce the heat conducted into the heat dissipation cavity 15 by the outer shell 2, and the second heat insulation layer 19 is arranged to reduce the heat exchange between the heat conduction cavity 14 and the heat dissipation cavity 15; the storage tank 1 is fixedly installed on the tank car, the external pipeline is connected with the feeding pipe 20, the stop valve 21 is opened, the liquid ammonia is sent into the tank 4 through the feeding pipe 20, the stop valve 21 is closed and the external pipeline is removed after the feeding is completed; the flow guiding hole 25 and the through hole 26 are arranged to reduce the impact of the liquid in the tank 4 on the wave board 24 when the liquid in the tank 4 shakes, the liquid in the tank 4 flows out from the flow guiding hole 25 and the through hole 26, the impact force of the liquid on the wave board 24 is reduced, and the impact force of the liquid on the sealing head and the wave board 24 is reduced when braking due to the staggered arrangement of the flow guiding hole 25 and the through hole 26.

[0047] Embodiment four

[0048] Please refer to Figures 1-9The fourth embodiment is improved on the basis of the first embodiment, and specifically, the shell 2 is fixedly connected with a sleeve 28 at the open end; the sleeve 28 is internally inserted with an auxiliary heat dissipation part 29; the auxiliary heat dissipation part 29 comprises an internal cover 30 inserted in the sleeve 28; the internal cover 30 is fixedly installed on the end of the shell 2 by fastening bolts; the side of the internal cover 30 is provided with a sealing plug plate 31 inserted in the open end of the inner shell 3; the side of the internal cover 30 is uniformly provided with second ventilation holes 32 outside the sealing plug plate 31; the circumferential side of the internal cover 30 is threadedly rotatably provided with an external cover 33; the side of the external cover 33 is uniformly provided with third ventilation holes 34; the inner side of the internal cover 30 is circumferentially and arrayedly provided with rotating shafts 35; the end of each rotating shaft 35 is provided with a heat dissipation fan blade 36; the inner side of the internal cover 30 is uniformly provided with mounting shells 37; the inside of each mounting shell 37 is fixedly installed with a servo motor 38; the inside of the remaining mounting shells 37 is fixedly installed with a generator 39; the output end of the servo motor 38 is fixedly connected with the uppermost rotating shaft 35; the input end of each generator 39 is fixedly connected with the corresponding rotating shaft 35; the inner side of the internal cover 30 is sequentially provided with a battery pack 40 and a controller 13; the inside of the conduction cavity 14 is provided with a wind speed sensor; the input end of the controller 13 is electrically connected with the wind speed sensor, and the output end thereof is electrically connected with the servo motor 38; each generator 39 is electrically connected with the input end of the battery pack 40.

[0049] The fourth embodiment works as follows: during the driving of the tank truck, the high-speed flowing air drives the corresponding heat dissipation fan blades 36 to rotate, thereby driving the corresponding rotating shafts 35 to rotate, converting the wind energy into mechanical energy, converting the mechanical energy into electrical energy by the generators 39, and storing the electrical energy in the battery pack 40, thereby providing power supply for the wind speed sensor, the servo motor 38 and the controller 13; when the tank truck is parked, the wind speed sensor arranged in the conduction cavity 16 monitors the air flow speed through the inside of the heat dissipation cavity 15 in real time; when there is no wind or the wind is small and lower than the set value, the wind speed sensor transmits a signal to the controller 13, and the controller 13 controls the servo motor 38 to start, thereby driving the corresponding heat dissipation fan blades 36 to rotate, thereby increasing the speed of the heat dissipation fins 12 in the heat dissipation cavity 15.

[0050] A transportation method of a liquid ammonia transportation device, comprising the following steps:

[0051] T1, by fixing and installing the storage tank 1 on the tank truck, connecting the external pipeline with the material conveying pipe 20, opening the stop valve 21, so that the liquid ammonia is sent into the tank 4 through the material conveying pipe 20, after completing the material conveying, closing the stop valve 21 and unloading the external pipeline;

[0052] T2, in the process of tank truck driving, the high-speed flowing air enters the heat dissipation cavity 14, when the temperature inside the conduction cavity 14 rises, the liquid ammonia inside the spiral steel pipe 10 is heated, so that the liquid working medium is gasified into gaseous working medium, and the heat inside the conduction cavity 14 is transmitted to the heat dissipation cavity 15 under the action of pressure difference, and the heat received in the heat dissipation cavity 15 is rapidly cooled under the action of the outside high-speed flowing air, and the liquid ammonia is cooled and condensed, and the liquid working medium of the conduction cavity 14 starts to absorb heat again, so that the tank 4 in the conduction cavity 14 is in a low-temperature state through the circulation of heat absorption and heat dissipation;

[0053] T3, in the process of tank truck driving, the high-speed flowing air drives the corresponding heat dissipation fan blade 36 to rotate, thereby driving the corresponding rotating shaft 35 to rotate, converting wind energy into mechanical energy, converting mechanical energy into electrical energy through the generator 39, and storing in the storage battery 40, providing power for the wind speed sensor, the servo motor 38 and the controller 13;

[0054] T4, when the tank truck is parked, the wind speed sensor inside the conduction cavity 16 monitors the air flow speed inside the heat dissipation cavity 15 in real time, when there is no wind or the wind is small and lower than the set value, the wind speed sensor transmits the signal to the controller 13, and the controller 13 controls the starting of the servo motor 38, and drives the corresponding heat dissipation fan blade 36 to rotate, thereby speeding up the heat dissipation of the heat dissipation fin 12 inside the heat dissipation cavity 15.

[0055] Obviously, the above-described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0056] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, they indicate the presence of the features, steps, operations, devices, components and / or their combinations.

[0057] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0058] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0059] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A liquid ammonia transport device, comprising a storage tank (1) fixedly installed on a tank truck; characterized in that: the storage tank (1) comprises an outer shell (2), an inner shell (3) and a tank body (4) arranged coaxially from outside to inside; first connecting plates (5) are uniformly arranged between the outer shell (2) and the inner shell (3); second connecting plates (6) are uniformly arranged between the inner shell (3) and the tank body (4); the tank body (4) is provided with a spiral placement groove (7) on the peripheral side surface; the inner shell (3) is uniformly provided with through holes (8) along the length direction on the peripheral side surface; the tank body (4) is provided with a heat rod assembly (9) matched with the spiral placement groove (7) on the peripheral side surface; the heat rod assembly (9) comprises a spiral steel pipe (10); vertical steel pipes (11) are uniformly arranged on the spiral steel pipe (10) along the length direction; the vertical steel pipes (11) are uniformly provided with heat dissipation fins (12) on the peripheral side surface; the spiral steel pipe (10) is filled with a liquid working medium; the spiral steel pipe (10) and each vertical steel pipe (11) are seamless steel pipes made of carbon; each vertical steel pipe (11) is in communication with the spiral steel pipe (10); each vertical steel pipe (11) and the spiral steel pipe (10) form a closed hollow inner cavity; the liquid working medium is liquid ammonia; a conduction cavity (14) is formed between the tank body (4) and the inner shell (3); a heat dissipation cavity (15) is formed between the outer shell (2) and the inner shell (3); the spiral steel pipe (10) is arranged in the conduction cavity (14); the heat dissipation fins (12) are arranged in the heat dissipation cavity (15); the vertical steel pipes (11) penetrate through the through holes (8); the outer shell (2) is fixedly connected with a sleeve (28) at the opening end; an auxiliary heat dissipation member (29) is inserted and arranged in the sleeve (28); the auxiliary heat dissipation member (29) comprises an embedded cover (30) inserted in the sleeve (28); the embedded cover (30) is fixedly installed on the end of the outer shell (2) by fastening bolts; the embedded cover (30) is provided with a sealing plug plate (31) inserted in the opening end of the inner shell (3) on the side surface; a plurality of rotation shafts (35) are arranged in a circumferential array and penetratingly rotatably arranged on the inner side surface of the embedded cover (30); the rotation shafts (35) are provided with heat dissipation fan blades (36) at the ends; the embedded cover (30) is uniformly provided with mounting shells (37) on the outer side surface; a servo motor (38) is fixedly installed in one of the mounting shells (37); the remaining mounting shells (37) are fixedly installed with generators (39) therein; the output end of the servo motor (38) is fixedly connected with the uppermost rotation shaft (35); the input ends of the generators (39) are fixedly connected with the corresponding rotation shafts (35), respectively; a storage battery pack (40) and a controller (13) are sequentially arranged on the outer side surface of the embedded cover (30); a wind speed sensor is arranged in the heat dissipation cavity (15); the input end of the controller (13) is electrically connected with the wind speed sensor, and the output end thereof is electrically connected with the servo motor (38); the input ends of the generators (39) and the storage battery pack (40) are electrically connected. ​ ​ 2. The apparatus of claim 1, wherein: The outer shell (2) and the inner shell (3) are both provided with an opening at one end; the outer shell (2) is uniformly provided with a first ventilation hole (16) at the closed end; the first connecting plate (5) and the second connecting plate (6) are both provided with a communication groove (17) on the side; the outer shell (2) is provided with a first heat insulation layer (18) on the inner circumferential side; and the inner shell (3) is provided with a second heat insulation layer (19) on the inner circumferential side.

3. An apparatus for transporting liquid ammonia as claimed in claim 2 wherein: The tank (4) is provided with an opening at both ends, and a feeding pipe (20) is arranged at one end; the feeding pipe (20) is provided with a stop valve (21); the tank (4) is provided with a human access channel (22) extending outwardly through the inner shell (3) and the outer shell (2) in sequence; and the human access channel (22) is fixedly connected with a human access cover (23) at the end through fastening bolts.

4. The apparatus of claim 3, wherein: The tank (4) is provided with a wave breaker (24) arranged in a linear array along the length direction inside; the wave breaker (24) is provided with a flow guide hole (25) and a through hole (26) in sequence on the side; the flow guide hole (25) and the through hole (26) are arranged in a staggered manner; the wave breaker (24) is provided with a human access hole (27) on the side; and the human access holes (27) on the adjacent wave breakers (24) are arranged in a staggered manner.

5. An apparatus for transporting liquid ammonia as claimed in claim 4 wherein: The inner cover (30) is uniformly provided with a second ventilation hole (32) on the side outside the sealing plug plate (31); the inner cover (30) is threadedly rotatably provided with an outer cover (33) on the circumferential side; and the outer cover (33) is uniformly provided with a third ventilation hole (34) on the side.

6. The method of claim 1-5, wherein, The method comprises the following steps: T1, by fixing and installing the storage tank (1) on the tank car, connecting the external pipeline with the feeding pipe (20), opening the stop valve (21), so that the liquid ammonia is sent into the tank (4) through the feeding pipe (20), after completing the feeding, closing the stop valve (21) and unloading the external pipeline; T2, during the driving of the tank car, the high-speed flowing air enters the heat dissipation cavity (14), when the temperature inside the conduction cavity (14) rises, the liquid working medium inside the spiral steel pipe (10) is heated, so that the liquid working medium is gasified into gaseous working medium, under the action of pressure difference, the heat inside the conduction cavity (14) is transferred to the heat dissipation cavity (15), the heat received in the heat dissipation cavity (15) is rapidly cooled under the action of the external high-speed flowing air, the liquid working medium is cooled and condensed, and the liquid working medium in the conduction cavity (14) starts to absorb heat again, through the circulation of heat absorption and dissipation, the tank (4) placed in the conduction cavity (14) is in a low temperature state; T3, during the driving of the tank car, the high-speed flowing air drives the corresponding heat dissipation fan blade (36) to rotate, thereby driving the corresponding rotating shaft (35) to rotate, converting the wind energy into mechanical energy, converting the mechanical energy into electrical energy through the generator (39), and storing the electrical energy in the storage battery (40), providing power supply for the wind speed sensor, the servo motor (38) and the controller (13); T4, when the tank truck stops, through the wind speed sensor arranged in the heat dissipation cavity (15), the air flow speed through the heat dissipation cavity (15) is monitored in real time, when there is no wind or the wind is small and lower than the set value, the wind speed sensor transmits the signal to the controller (13), and the servo motor (38) is controlled to rotate the corresponding heat dissipation fan blade (36), so that the heat dissipation fin (12) in the heat dissipation cavity (15) is accelerated to dissipate heat.

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