Liquid ammonia storage and transportation device

Abstract

The present application relates to the technical field of liquid ammonia storage and transportation, and provides a liquid ammonia storage and transportation device, including a storage and transportation tank, a circulation component, a detection component and a neutralization component, wherein a protective shell is provided on the outside of the storage and transportation tank, and a circulation channel for filling nitrogen is formed between the inner wall of the protective shell and the outer wall of the storage and transportation tank; the circulation component includes a circulation fan, a first circulation pipe and a second circulation pipe, the inlet end of the first circulation pipe is connected to the air outlet of the circulation fan, the outlet end of the second circulation pipe is connected to the air inlet of the circulation fan, and the outlet end of the first circulation pipe and the inlet end of the second circulation pipe are both connected to the circulation channel; the detection component and the neutralization component are both provided in the second circulation pipe, the detection component is used to detect ammonia, and the neutralization component is used to neutralize ammonia. A liquid ammonia storage and transportation device of the present application can improve the storage and transportation safety of liquid ammonia.

Description

Technical Field

[0001] The present application relates to the technical field of liquid ammonia storage and transportation, and in particular to a liquid ammonia storage and transportation device. Background Art

[0002] In the liquid ammonia storage and transportation industry, due to the high toxicity and flammability of liquid ammonia, the requirements for storage and transportation equipment are extremely strict. These devices need to ensure safety and stability during transportation to avoid potential environmental pollution and personal injury risks.

[0003] In order to improve the safety performance of liquid ammonia storage tanks, the industry generally adopts multiple protection measures. For example, high-strength stainless steel materials are used to enhance the structural strength of the storage tanks, and multiple layers of insulation materials are installed on the outside of the storage tanks to reduce the impact of external temperature changes on liquid ammonia. In addition, automatic pressure relief systems are often installed to release pressure in time when the pressure inside the storage tank is too high to prevent explosion accidents. However, although these measures can ensure the safety of storage tanks to a certain extent, there are still some shortcomings in practical applications.

[0004] Although the existing storage tanks effectively reduce the impact of external environmental fluctuations on the temperature inside the storage tanks through multi-layer insulation materials, this design focuses too much on the insulation effect and ignores the monitoring and treatment issues after liquid ammonia leaks. Specifically, when a storage tank leaks, there is a lack of effective real-time monitoring and emergency treatment methods, which may cause the leaked gas to spread into the environment and cause serious safety accidents. Therefore, there is an urgent need for a new storage and transportation device that can effectively monitor and handle liquid ammonia leaks to further improve the safety of liquid ammonia storage and transportation. Summary of the invention

[0005] In order to improve the storage and transportation safety of liquid ammonia, the present application provides a liquid ammonia storage and transportation device.

[0006] The liquid ammonia storage and transportation device provided in this application adopts the following technical solution:

[0007] A liquid ammonia storage and transportation device comprises a storage and transportation tank, a circulation component, a detection component and a neutralization component, wherein a protective shell is arranged on the outside of the storage and transportation tank, and a circulation channel for filling nitrogen is formed between the inner wall of the protective shell and the outer wall of the storage and transportation tank; the circulation component comprises a circulation fan, a first circulation pipe and a second circulation pipe, the inlet end of the first circulation pipe is connected to the air outlet of the circulation fan, the outlet end of the second circulation pipe is connected to the air inlet of the circulation fan, and the outlet end of the first circulation pipe and the inlet end of the second circulation pipe are both connected to the circulation channel; the detection component and the neutralization component are both arranged on the second circulation pipe, the detection component is used to detect ammonia, and the neutralization component is used to neutralize ammonia.

[0008] By adopting the above technical solution, nitrogen is filled in the circulation channel. As an inert gas, nitrogen can not only buffer the pressure changes inside and outside the storage tank, but also avoid unnecessary chemical reactions between ammonia and other substances when liquid ammonia leaks, thereby improving the safety performance of the device. During the storage and transportation process, the circulating fan drives the nitrogen in the circulation channel to circulate continuously to ensure the stable operation of the entire system. When the storage tank leaks, liquid ammonia enters the circulation channel to form ammonia. The detection component can detect the presence of ammonia in time, and effectively neutralize the ammonia through the neutralization component, further controlling the ammonia concentration in the circulation channel, preventing accidents, and improving the safety and reliability of the liquid ammonia storage and transportation process.

[0009] Optionally, the neutralization component includes a neutralization tank, a third circulation pipe and a fourth circulation pipe, the neutralization tank contains a neutralizer for neutralizing ammonia; the inlet end of the third circulation pipe is connected to the second circulation pipe, the outlet end of the third circulation pipe is connected to the inside of the neutralization tank, the inlet end of the fourth circulation pipe is connected to the inside of the neutralization tank, and the outlet end of the fourth circulation pipe is connected to the air inlet of the circulation fan.

[0010] By adopting the above technical solution, when ammonia is detected, the third circulation pipe is opened to allow the mixed gas (ammonia and nitrogen) to enter the neutralization tank through the third circulation pipe. The neutralizer in the neutralization tank can quickly react with the ammonia to eliminate the concentration of ammonia; the neutralized gas returns to the circulation fan through the fourth circulation pipe, ensuring the stability of the gas circulation in the system and reducing the risk of pollution to the external environment.

[0011] Optionally, a switching seat is installed on the top of the neutralization tank, and a switching cavity is opened in the switching seat; the second circulation pipe includes a front section and a rear section, the inlet end of the front section is connected to the circulation channel, the outlet end of the front section is connected to the switching seat and connected to the switching cavity, the inlet end of the rear section is connected to the switching seat and connected to the switching cavity, and the outlet end of the rear section is connected to the air inlet of the circulation fan; the inlet end of the third circulation pipe is connected to the switching seat and connected to the switching cavity, and the switching cavity is provided with a switching component for switching the gas flow direction.

[0012] By adopting the above technical solution, the third circulation pipe is connected to the second circulation pipe through the switching chamber, and the switching component can change the flow direction of the gas as needed. When ammonia exists in the circulation channel, the outlet end of the front section is connected to the outlet end of the third circulation pipe through the switching component to change the flow direction of the gas, so that the mixed gas can be sent into the neutralization tank for neutralization reaction.

[0013] Optionally, the switching component includes a switching roller and a rotating member, the switching roller is rotatably installed in the switching cavity, a first switching flow channel is opened in the switching roller, both ends of the first switching flow channel penetrate the peripheral wall of the switching roller to form a first opening and a second opening; when the switching roller drives the first opening to connect to the outlet end of the front section, the second opening of the first switching flow channel connects to the inlet end of the rear section, and the switching roller covers the inlet end of the third circulation pipe; when the switching roller drives the second opening to connect to the outlet end of the front section, the first opening of the first switching flow channel connects to the inlet end of the third circulation pipe, and the switching roller covers the inlet end of the rear section; the rotating member is arranged on the switching seat to drive the switching roller to rotate around its own central axis.

[0014] By adopting the above technical solution, under normal conditions (when liquid ammonia is not leaking), the switching roller is driven to rotate by the rotating member, and the first opening of the first switching flow channel is forced to connect to the outlet end of the front section. At this time, the second opening of the first switching flow channel is connected to the inlet end of the rear section, and the switching roller covers the inlet end of the third circulation pipe, thereby closing the neutralization tank, so that the circulating gas can circulate directly. When liquid ammonia leaks, the switching roller is driven to rotate a certain angle by the rotating member, forcing the second opening of the first switching flow channel to connect to the outlet end of the front section. At this time, the first opening of the first switching flow channel is connected to the inlet end of the third circulation pipe, thereby opening the neutralization tank, so that the circulating gas can enter the neutralization tank for neutralization reaction, and the neutralized gas flows from the fourth circulation pipe to the circulation fan for circulation, thereby improving the operation convenience of the overall structure.

[0015] Optionally, a first partition plate is provided in the neutralization tank, and the first partition plate divides the interior of the neutralization tank into a neutralization zone and an adsorption zone. The neutralizer is filled in the neutralization zone, and the neutralizer is a hydrochloric acid solution. The outlet end of the third circulation pipe is connected to the neutralization zone, and the inlet end of the fourth circulation pipe is connected to the adsorption zone; a connecting groove is provided on the surface of the first partition plate, and the neutralization zone and the adsorption zone are connected to each other through the connecting groove, and a spray pipe for spraying water into the adsorption zone is provided in the adsorption zone.

[0016] By adopting the above technical solution, the mixed gas (ammonia and nitrogen) flows into the neutralization zone from the third circulation pipe, so that the ammonia reacts with the neutralizer in the neutralization zone. Since the neutralization reaction of ammonia and hydrochloric acid is an exothermic process, white smoke-like ammonium chloride (solid small particles) is formed after the neutralization of ammonia and hydrochloric acid. The ammonium chloride particles flow into the adsorption zone along with the nitrogen. At this time, water is sprayed into the adsorption zone through the spray pipe. The water can absorb the ammonium chloride particles doped in the nitrogen, so that the ammonium chloride particles are dissolved in the water, thereby reducing the possibility that the ammonium chloride particles generated by the neutralization reaction flow into the circulation channel under the action of the circulation fan.

[0017] Optionally, a heat exchange tube is provided in the neutralization zone, and the heat exchange tube is arranged in a serpentine shape in the neutralization zone. The inlet end of the heat exchange tube extends out of the neutralization tank and is connected to a water supply pipe, and the outlet end of the heat exchange tube extends into the adsorption zone and is connected to a spray pipe.

[0018] By adopting the above technical solution, a heat exchange tube is arranged in the neutralization zone. Since ammonia gas and hydrochloric acid react with each other when entering the neutralization zone, a large amount of heat is generated in this process. The heat exchange tube is arranged in the neutralization zone, and the water passing through the heat exchange tube can absorb heat to increase the temperature of the water, so that the water sprayed out by the spray pipe is hot water. The hot water can increase the speed at which the ammonium chloride particles dissolve in the water, thereby improving the adsorption effect of the ammonium chloride particles. The heat exchange tube is arranged to be serpentine, so as to increase the contact area of ​​the heat exchange tube and thus improve the heat exchange effect.

[0019] Optionally, the inlet end of the heat exchange tube is connected to the switching seat and communicated with the switching chamber, the inlet end of the water supply pipe is used to connect to the water supply equipment, and the outlet end of the water supply pipe is connected to the switching seat and communicated with the switching chamber; a second switching flow channel is opened in the switching roller, and both ends of the second switching flow channel pass through the surrounding wall of the switching roller to form a third opening and a fourth opening, and when the outlet end of the front section is connected to the inlet end of the rear section, the switching roller respectively covers the outlet end of the water supply pipe and the inlet end of the heat exchange tube, and when the outlet end of the front section is connected to the inlet end of the third circulation pipe, the third opening is connected to the outlet end of the water supply pipe and the fourth opening is connected to the inlet end of the heat exchange tube.

[0020] By adopting the above technical solution and setting the second switching flow channel, under normal conditions (when liquid ammonia is not leaking), the front section and the rear section are interconnected through the first switching flow channel, and the switching roller covers the outlet end of the water supply pipe and the inlet end of the heat exchange pipe respectively, thereby closing the neutralization tank and the heat exchange pipe, that is, the device does not perform a neutralization reaction or spray. When a leak occurs, the switching roller is driven to rotate, forcing the outlet end of the front section and the inlet end of the third circulation pipe to be connected. At this time, the third opening of the second switching flow channel is connected to the outlet end of the water supply pipe and the fourth opening of the second switching flow channel is connected to the inlet end of the heat exchange pipe, thereby opening the neutralization tank and the heat exchange pipe synchronously, that is, the device can perform a neutralization reaction and spray to treat ammonia, greatly improving the convenience of operation of the overall structure.

[0021] Optionally, the heat exchange tube partially extends into the neutralizer.

[0022] By adopting the above technical solution, ammonia and volatile hydrochloric acid release heat during the neutralization reaction, and the water in the heat exchange tube absorbs heat and its temperature rises. The heat exchange tube is partially extended into the neutralizer, and the heat exchange tube can increase the temperature of the neutralizer and increase the volatilization rate of the hydrochloric acid, thereby ensuring that there is enough volatile hydrochloric acid to neutralize the ammonia.

[0023] Optionally, a second partition plate is installed in the neutralization zone, and the second partition plate divides the neutralization zone into a storage chamber and a neutralization chamber, the adsorption zone is connected to the neutralization chamber, the outlet end of the third circulation pipe is connected to the neutralization chamber, and the neutralizer is filled in the storage chamber; the plate surface of the second partition plate is provided with a first volatilization groove for volatilization of the neutralizer, and a sliding plate is slidably installed in the neutralization chamber, and the plate surface of the sliding plate is provided with a second volatilization groove, and the first volatilization groove and the second volatilization groove are staggered, and when the sliding plate is attached to the second partition plate, the sliding plate covers the first volatilization groove; a linkage component is provided between the sliding plate and the switching roller, and when the outlet end of the front section is connected to the inlet end of the third circulation pipe, the linkage component forces the sliding plate to lift off the second partition plate.

[0024] By adopting the above technical solution, when the storage tank does not leak (i.e., the front section is connected to the rear section), the sliding plate is attached to the second partition plate to cover the first volatilization tank, so that the storage chamber forms a relatively closed space to reduce the volatilization of hydrochloric acid. When the storage tank leaks, the switching roller is driven to rotate, forcing the front section to be connected to the third circulation pipe. During this process, the linkage component can force the sliding plate to lift off the second partition plate to open the first volatilization tank. The volatilized hydrochloric acid can enter the neutralization chamber from the first volatilization tank and the second volatilization tank in turn, and react with ammonia in the neutralization chamber to improve the operation convenience of the overall structure.

[0025] Optionally, a sliding rod is provided on the surface of the sliding plate, and the end of the sliding rod away from the sliding plate extends out of the neutralization tank; the linkage assembly includes a linkage disk and a linkage rod, and the linkage disk is coaxially arranged on the end face of the switching roller, one end of the linkage rod is hinged to the linkage disk, and the other end is hinged to the end of the sliding rod away from the sliding plate; when the outlet end of the front section is connected to the inlet end of the rear section, the sliding plate abuts against the second partition plate, and when the outlet end of the front section is connected to the inlet end of the third circulation pipe, the sliding plate is lifted away from the second partition plate.

[0026] By adopting the above-mentioned technical solution, the switching roller is driven to rotate, forcing the front section to be connected to the third circulation pipe. During the rotation of the switching roller, the linkage rod is pulled by the linkage disk, thereby forcing the sliding plate to lift away from the second partition plate to open the storage chamber, so that the hydrochloric acid in the storage chamber can evaporate into the neutralization chamber for neutralization reaction, thereby improving the operational convenience of the overall structure.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Through the setting of circulation components, detection components and neutralization components, nitrogen is filled in the circulation channel. As an inert gas, nitrogen can not only buffer the pressure changes inside and outside the storage tank, but also avoid unnecessary chemical reactions between ammonia and other substances when liquid ammonia leaks, thereby improving the safety performance of the device. During the storage and transportation process, the circulation fan drives the nitrogen in the circulation channel to circulate continuously to ensure the stable operation of the entire system. When a storage tank leaks, liquid ammonia enters the circulation channel to form ammonia. The detection component can detect the presence of ammonia in time, and effectively neutralize the ammonia through the neutralization component, further controlling the ammonia concentration in the circulation channel, preventing accidents, and improving the safety and reliability of the liquid ammonia storage and transportation process;

[0029] 2. Through the setting of the switching roller, under normal conditions (when liquid ammonia is not leaking), the switching roller is driven to rotate by the rotating member, and the first opening of the first switching channel is forced to connect to the outlet end of the front section. At this time, the second opening of the first switching channel is connected to the inlet end of the rear section, and the switching roller covers the inlet end of the third circulation pipe, thereby closing the neutralization tank and allowing the circulating gas to circulate directly. When liquid ammonia leaks, the switching roller is driven to rotate a certain angle by the rotating member, forcing the second opening of the first switching channel to connect to the outlet end of the front section. At this time, the first opening of the first switching channel is connected to the inlet end of the third circulation pipe, thereby opening the neutralization tank and allowing the circulating gas to enter the neutralization tank for neutralization reaction. The neutralized gas flows from the fourth circulation pipe back to the circulating fan for circulation, thereby improving the operational convenience of the overall structure;

[0030] 3. Through the setting of the second switching flow channel, under normal conditions (when liquid ammonia is not leaking), the front section and the rear section are interconnected through the first switching flow channel, and the switching roller covers the outlet end of the water supply pipe and the inlet end of the heat exchange tube respectively, thereby closing the neutralization tank and the heat exchange tube, that is, the device does not perform a neutralization reaction or spray. When a leak occurs, the switching roller is driven to rotate, forcing the outlet end of the front section and the inlet end of the third circulation tube to be connected. At this time, the third opening of the second switching flow channel is connected to the outlet end of the water supply pipe and the fourth opening of the second switching flow channel is connected to the inlet end of the heat exchange tube, thereby opening the neutralization tank and the heat exchange tube synchronously, that is, the device can perform a neutralization reaction and spray to treat ammonia, greatly improving the operational convenience of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a cross-sectional view of the overall structure of Example 1;

[0032] Figure 2 is a partial cross-sectional view of the neutralization assembly of Example 1;

[0033] Figure 3 is a partial cross-sectional view of the embodiment 2 showing the front section connected to the rear section;

[0034] Figure 4 It is a partial cross-sectional view of the front section connected to the third circulation pipe of embodiment 2;

[0035] Figure 5 is a partial cross-sectional view of the second switching flow channel according to Embodiment 2;

[0036] Figure 6 is a partial cross-sectional view of the water supply pipe connected to the heat exchange pipe in embodiment 2;

[0037] Figure 7 It is a partial cross-sectional view of the linkage assembly according to Embodiment 3.

[0038] Description of reference numerals: 1. Storage tank; 11. Protective shell; 12. Circulation channel; 13. Connecting column; 14. Insulation layer; 2. Circulation assembly; 21. First circulation pipe; 22. Second circulation pipe; 221. Front section; 222. Rear section; 223. First switching valve; 3. Detection assembly; 31. Detection seat; 311. Detection chamber; 312. Disassembly and assembly port; 32. Mounting frame; 4. Neutralization assembly; 41. Neutralization tank; 411. First partition plate; 412. Neutralization zone; 413. Adsorption zone; 414. Connecting groove; 415. Second partition plate; 416. Storage chamber; 417. Neutralization chamber; 418, first volatilization tank; 419, liquid adding pipe; 42, third circulation pipe; 421, second switching valve; 43, fourth circulation pipe; 44, sliding plate; 441, second volatilization tank; 442, sliding rod; 443, sliding bar; 5, switching seat; 51, switching chamber; 52, switching roller; 521, first switching flow channel; 522, first opening; 523, second opening; 524, second switching flow channel; 525, third opening; 526, fourth opening; 6, spray pipe; 7, heat exchange pipe; 8, water supply pipe; 9, linkage assembly; 91, linkage disk; 92, linkage rod. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1 -Attached Figure 7 This application is described in further detail.

[0040] Embodiment 1:

[0041] The embodiment of the present application discloses a liquid ammonia storage and transportation device, which is used to be installed on a ship to store and transport liquid ammonia.

[0042] Reference Figure 1A liquid ammonia storage and transportation device includes a storage tank 1, a circulation component 2, a detection component 3 and a neutralization component 4. The storage tank 1 is used to store liquid ammonia. A protective shell 11 is arranged on the outside of the storage tank 1. The protective shell 11 surrounds the outer peripheral side of the storage tank 1. A plurality of connecting columns 13 are installed between the inner wall of the protective shell 11 and the outer wall of the storage tank 1. The storage tank 1 and the protective shell 11 are connected as a whole through the plurality of connecting columns 13.

[0043] An insulating layer 14 is attached to the outer wall of the storage tank, and the insulating layer 14 may be a polyurethane layer. There is a gap between the inner wall of the protective shell 11 and the outer wall of the insulating layer 14 to form a circulation channel 12 for filling nitrogen. The protective shell 11 is connected to a gas charging pipe (not shown in the figure), and the outlet end of the gas charging pipe is connected to the circulation channel 12 for charging nitrogen into the circulation channel 12.

[0044] Reference Figure 1 , Figure 2 The circulation component 2 includes a circulation fan, a first circulation pipe 21 and a second circulation pipe 22. The circulation fan (not shown in the figure) is installed on the ship. The inlet end of the first circulation pipe 21 is connected to the air outlet of the circulation fan, and the outlet end of the second circulation pipe 22 is connected to the air inlet of the circulation fan. The outlet end of the first circulation pipe 21 and the inlet end of the second circulation pipe 22 are both connected to the circulation channel 12. In this embodiment, the outlet end of the first circulation pipe 21 is connected to the circulation channel 12 from one side of the storage and transportation tank 1, and the inlet end of the second circulation pipe 22 is connected to the circulation channel 12 from the other side of the storage and transportation tank 1.

[0045] Reference Figure 1 , Figure 2 , the detection component 3 and the neutralization component 4 are both arranged in the second circulation pipe 22, the detection component 3 is used to detect ammonia, and the neutralization component 4 is used to neutralize ammonia; in this embodiment, the detection component 3 includes a detection seat 31 and a mounting frame 32, the detection seat 31 is installed at the inlet end of the second circulation pipe 22, and a detection cavity 311 connected to the second circulation pipe 22 is opened inside the detection seat 31, and a disassembly port 312 connected to the detection cavity 311 is opened on the side wall of the detection seat 31, and the mounting frame 32 is inserted into the detection cavity 311 through the disassembly port 312, and the mounting frame 32 can be detachably mounted on the detection seat 31 by bolt connection (bolts are not shown in the figure).

[0046] The mounting frame 32 is a rectangular frame structure, and is equipped with a phenolphthalein impregnated tape (not shown in the figure) located in the detection cavity 311. The phenolphthalein impregnated tape can be installed on the mounting frame 32 by bonding or winding, so as to detect whether ammonia exists in the gas flowing through the detection cavity 311. During the gas circulation process, if the color of the phenolphthalein impregnated tape turns red, it means that ammonia is contained in the gas flowing through the detection cavity 311. It should be noted that in the present embodiment, the detection seat 31 is equipped with a transparent glass (not shown in the figure), and the transparent glass enables the operator to observe the color change of the phenolphthalein impregnated tape in the detection cavity 311. In other embodiments, the method of judging the color change of the phenolphthalein impregnated tape can also be identified by a color detection instrument.

[0047] Reference Figure 1 , Figure 2 The neutralization component 4 includes a neutralization tank 41, a third circulation pipe 42 and a fourth circulation pipe 43. The neutralization tank 41 is located on one side of the storage tank 1. The side wall of the neutralization tank 41 is connected to a liquid adding pipe 419. The outlet end of the liquid adding pipe 419 is connected to the interior of the neutralization tank 41 for adding a neutralizer into the neutralization tank 41. The neutralizer is a hydrochloric acid solution.

[0048] The inlet end of the third circulation pipe 42 is connected to the second circulation pipe 22, the outlet end of the third circulation pipe 42 is connected to the inside of the neutralization tank 41, the inlet end of the fourth circulation pipe 43 is connected to the inside of the neutralization tank 41, and the outlet end of the fourth circulation pipe 43 is connected to the air inlet of the circulation fan; the second circulation pipe 22 is installed with a first switching valve 223, and the inlet end of the third circulation pipe 42 is located between the first switching valve 223 and the detection seat 31; the third circulation pipe 42 is installed with a second switching valve 421.

[0049] The implementation principle of Example 1 of the present application is as follows: nitrogen is filled in the circulation channel 12. As an inert gas, nitrogen can not only buffer the pressure changes inside and outside the storage tank 1, but also avoid unnecessary chemical reactions between ammonia and other substances when liquid ammonia leaks, thereby improving the safety performance of the device. During the storage and transportation process, the circulating fan drives the nitrogen in the circulation channel 12 to circulate continuously to ensure the stable operation of the entire system. When the storage tank 1 leaks, liquid ammonia enters the circulation channel 12 to form ammonia, and the detection component 3 can detect the presence of ammonia in time.

[0050] When the presence of ammonia is detected, the first switching valve 223 is closed and the second switching valve 421 is opened, so that the mixed gas (ammonia and nitrogen) enters the neutralization tank 41 through the third circulation pipe 42. The neutralizer in the neutralization tank 41 can quickly react with the ammonia to eliminate the concentration of ammonia; the neutralized gas returns to the circulation fan through the fourth circulation pipe 43, ensuring the stability of the gas circulation in the system and reducing the risk of pollution to the external environment.

[0051] Embodiment 2:

[0052] The embodiment of the present application discloses a liquid ammonia storage and transportation device.

[0053] The difference between the liquid ammonia storage and transportation device disclosed in the embodiment of the present application and embodiment 1 is that:

[0054] Reference Figure 3 , Figure 4 In this embodiment, a switching seat 5 is fixedly installed on the top of the neutralization tank 41. The switching seat 5 is cylindrical in shape. A switching cavity 51 is opened inside the switching seat 5. The two ends of the switching cavity 51 respectively penetrate the two end surfaces of the switching seat 5; the second circulation pipe 22 includes a front section 221 and a rear section 222. The inlet end of the front section 221 is connected to the circulation channel 12, and the outlet end of the front section 221 is connected to the switching seat 5 and connected to the switching cavity 51. The detection seat 31 is located in the front section 221. The inlet end of the rear section 222 is connected to the switching seat 5 and connected to the switching cavity 51, and the outlet end of the rear section 222 is connected to the air inlet of the circulation fan. The inlet end of the third circulation pipe 42 is connected to the switching seat 5 and connected to the switching cavity 51.

[0055] Reference Figure 3 , Figure 4 The switching chamber 51 is provided with a switching assembly for switching the gas flow direction. The switching assembly includes a switching roller 52 and a rotating member. The switching roller 52 is rotatably installed in the switching chamber 51. A first switching flow channel 521 is provided in the switching roller 52. Both ends of the first switching flow channel 521 penetrate the peripheral wall of the switching roller 52 and form a first opening 522 and a second opening 523. When the switching roller 52 drives the first opening 522 to communicate with the outlet end of the front section 221, the second opening 523 of the first switching flow channel 521 communicates with the inlet end of the rear section 222, and the switching roller 52 covers the inlet end of the third circulation pipe 42. When the switching roller 52 drives the second opening 523 to communicate with the outlet end of the front section 221, the first opening 522 of the first switching flow channel 521 communicates with the inlet end of the third circulation pipe 42, and the switching roller 52 covers the inlet end of the rear section 222.

[0056] The rotating member is arranged on the switching seat 5 to drive the switching roller 52 to rotate around its own central axis. The rotating member can be a motor or a rotating cylinder. In this embodiment, the rotating member is set to be a rotating cylinder (not shown in the figure). The cylinder body of the rotating cylinder is fixedly installed on the top wall of the neutralization tank 41, and the output end of the rotating cylinder is connected to the switching roller 52 to drive the switching roller 52 to rotate around its own central axis.

[0057] Reference Figure 3 , Figure 4The inner wall of the neutralization tank 41 is provided with a first partition plate 411, which is arranged vertically. The first partition plate 411 divides the interior of the neutralization tank 41 into a neutralization zone 412 and an adsorption zone 413. The neutralizer is filled in the neutralization zone 412. The outlet end of the third circulation pipe 42 is connected to the neutralization zone 412, and the inlet end of the fourth circulation pipe 43 is connected to the adsorption zone 413. A connecting groove 414 is provided on the plate surface of the first partition plate 411. The neutralization zone 412 and the adsorption zone 413 are connected to each other through the connecting groove 414. A spray pipe 6 for spraying water into the adsorption zone 413 is installed in the adsorption zone 413. A spray head is installed on the peripheral wall of the spray pipe 6. In this embodiment, the spray pipe 6 can be fixedly installed on the top wall of the adsorption zone 413 by a clamp (not shown in the figure).

[0058] Reference Figure 4 , Figure 5 , Figure 6 The switching seat 5 is connected to a water supply pipe 8, the inlet end of the water supply pipe 8 is used to connect a water supply device, and the water supply device can be a water pump (not shown in the figure), and the outlet end of the water supply pipe 8 is connected to the switching seat 5 and is connected to the switching chamber 51; a heat exchange tube 7 is installed in the neutralization zone 412, and the heat exchange tube 7 is fixedly installed on the inner wall of the neutralization zone 412 by a clamp, and the heat exchange tube 7 is serpentinely arranged in the neutralization zone 412, and the inlet end of the heat exchange tube 7 extends out of the neutralization tank 41 and is connected to the switching seat 5, and the inlet end of the heat exchange tube 7 is connected to the switching chamber 51, and the outlet end of the heat exchange tube 7 extends into the adsorption zone 413 and is connected to the spray pipe 6, and the water supply pipe 8 and the spray pipe 6 are connected through the heat exchange tube 7.

[0059] A second switching flow channel 524 is opened in the switching roller 52, and the first switching flow channel 521 and the second switching flow channel 524 are staggered along the central axis of the switching roller 52, and both ends of the second switching flow channel 524 pass through the peripheral wall of the switching roller 52 to form a third opening 525 and a fourth opening 526; when the outlet end of the front section 221 is connected to the inlet end of the rear section 222, the switching roller 52 covers the outlet end of the water supply pipe 8 and the inlet end of the heat exchange pipe 7 respectively, and when the outlet end of the front section 221 is connected to the inlet end of the third circulation pipe 42, the third opening 525 is connected to the outlet end of the water supply pipe 8 and the fourth opening 526 is connected to the inlet end of the heat exchange pipe 7.

[0060] The implementation principle of Example 2 of the present application is: under normal conditions (when liquid ammonia is not leaking), the switching roller 52 is driven to rotate by the rotating part, and the first opening 522 of the first switching flow channel 521 is forced to connect to the outlet end of the front section 221. At this time, the second opening 523 of the first switching flow channel 521 is connected to the inlet end of the rear section 222, and the switching roller 52 covers the inlet end of the third circulation pipe 42, and the switching roller 52 covers the outlet end of the water supply pipe 8 and the inlet end of the heat exchange pipe 7 respectively, thereby closing the neutralization tank 41 and the spray pipe 6, that is, the device does not perform a neutralization reaction or spraying.

[0061] When leakage occurs, the switching roller 52 is driven to rotate, forcing the outlet end of the front section 221 and the inlet end of the third circulation pipe 42 to be connected. At this time, the third opening 525 is connected to the outlet end of the water supply pipe 8 and the fourth opening 526 is connected to the inlet end of the heat exchange tube 7, thereby synchronously opening the neutralization tank 41 and the heat exchange tube 7, that is, the device can perform neutralization reaction and spray to treat the ammonia, which greatly improves the operational convenience of the overall structure.

[0062] Since ammonia and hydrochloric acid react to generate ammonium chloride, a large amount of heat is generated in this process. The heat exchange tube 7 is arranged in the neutralization zone 412. The water passing through the heat exchange tube 7 can absorb heat to increase the temperature of the water, so that the water sprayed by the spray pipe 6 is hot water. The hot water can increase the speed at which the ammonium chloride particles dissolve in the water, thereby improving the adsorption effect on the ammonium chloride particles. The heat exchange tube 7 is arranged to be serpentine, so as to increase the contact area of ​​the heat exchange tube 7 and thus improve the heat exchange effect.

[0063] Embodiment 3:

[0064] The embodiment of the present application discloses a liquid ammonia storage and transportation device.

[0065] The difference between the liquid ammonia storage and transportation device disclosed in the embodiment of the present application and embodiment 2 is that:

[0066] Reference Figure 7 In this embodiment, a second partition plate 415 is installed in the neutralization zone 412, and the second partition plate 415 is arranged horizontally. The second partition plate 415 divides the neutralization zone 412 into a storage chamber 416 and a neutralization chamber 417. The adsorption zone 413 is connected to the neutralization chamber 417. The outlet end of the third circulation pipe 42 is connected to the neutralization chamber 417. The neutralizer is filled in the storage chamber 416. The plate surface of the second partition plate 415 is provided with a plurality of first volatilization grooves 418 for volatilization of the hydrochloric acid solution. A sliding plate 44 is slidably installed in the neutralization chamber 417. The plate surface of the sliding plate 44 is provided with a plurality of second volatilization grooves 441. The plurality of first volatilization grooves 418 and the plurality of second volatilization grooves 441 are staggered. When the sliding plate 44 is attached to the second partition plate 415, the sliding plate 44 covers all the first volatilization grooves 418. In this embodiment, the heat exchange tube 7 passes through the sliding plate 44 and the second partition plate 415 in sequence and partially extends into the neutralizer.

[0067] Reference Figure 7 A linkage assembly 9 is arranged between the sliding plate 44 and the switching roller 52. When the outlet end of the front section 221 is connected to the inlet end of the rear section 222, the linkage assembly 9 forces the sliding plate 44 to abut against the second partition plate 415; when the outlet end of the front section 221 is connected to the inlet end of the third circulation pipe 42, the linkage assembly 9 forces the sliding plate 44 to lift away from the second partition plate 415.

[0068] A sliding rod 442 is fixedly installed on the plate surface of the sliding plate 44, and one end of the sliding rod 442 away from the sliding plate 44 extends out of the neutralization tank 41 and is fixedly connected to a sliding bar 443; the linkage assembly 9 includes a linkage disk 91 and a linkage rod 92, the linkage disk 91 is coaxially fixed to the end surface of the switching roller 52, one end of the linkage rod 92 is hinged to the linkage disk 91, and the other end is hinged to the sliding bar 443, when the outlet end of the front section 221 is connected to the inlet end of the rear section 222, the sliding plate 44 abuts against the second partition plate 415, and when the outlet end of the front section 221 is connected to the inlet end of the third circulation pipe 42, the sliding plate 44 is lifted away from the second partition plate 415.

[0069] The implementation principle of Example 3 of the present application is: when there is no leakage of liquid ammonia, the front section 221 is forced to connect to the rear section 222 through the switching roller 52. In this state, the sliding plate 44 abuts against the second partition plate 415 under the action of the linkage disk 91 and the linkage rod 92 to cover the first volatilization groove 418, so that the storage chamber 416 forms a relatively closed space, thereby reducing the volatilization of hydrochloric acid.

[0070] When liquid ammonia leaks, the front section 221 is forced to connect with the third circulation pipe 42 through the switching roller 52. In this state, the sliding plate 44 is lifted off the second partition plate 415 by the action of the linkage disk 91 and the linkage rod 92 to open the first volatilization groove 418. The volatilized hydrochloric acid can enter the neutralization chamber 417 from the first volatilization groove 418 and the second volatilization groove 441 in turn, and react with ammonia in the neutralization chamber 417 to neutralize, thereby improving the operational convenience of the overall structure.

[0071] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A liquid ammonia storage and transportation device, characterized in that: The invention comprises a storage tank (1), a circulation component (2), a detection component (3) and a neutralization component (4), wherein a protective shell (11) is arranged on the outside of the storage tank (1), and a circulation channel (12) for filling nitrogen is formed between the inner wall of the protective shell (11) and the outer wall of the storage tank (1); the circulation component (2) comprises a circulation fan, a first circulation pipe (21) and a second circulation pipe (22), the inlet end of the first circulation pipe (21) is connected to the air outlet of the circulation fan, the outlet end of the second circulation pipe (22) is connected to the air inlet of the circulation fan, and the outlet end of the first circulation pipe (21) and the inlet end of the second circulation pipe (22) are both connected to the air outlet of the circulation fan. The invention relates to a circulating channel (12); the detection component (3) and the neutralization component (4) are both arranged on the second circulating pipe (22); the detection component (3) is used to detect ammonia, and the neutralization component (4) is used to neutralize ammonia; the neutralization component (4) comprises a neutralization tank (41), a third circulating pipe (42) and a fourth circulating pipe (43); the neutralization tank (41) contains a neutralizing agent for neutralizing ammonia; a switching seat (5) is installed on the top of the neutralization tank (41); a switching cavity (51) is provided in the switching seat (5); the second circulating pipe (22) comprises a front section (221) and a rear section (222); the inlet end of the front section (221) is connected to the circulating pipe (22); The channel (12) is provided with a switching assembly for switching the gas flow direction; the switching assembly comprises a switching roller (52) and a rotating member, the switching roller (52) is rotatably mounted in the switching chamber (51); the neutralization tank (41) is provided with a first partition plate (41) and a first partition plate (41) disposed in the neutralization tank (41); the outlet end of the front section (221) is connected to the switching seat (5) and is connected to the switching chamber (51); the inlet end of the rear section (222) is connected to the switching seat (5) and is connected to the switching chamber (51); the outlet end of the rear section (222) is connected to the air inlet of the circulating fan; the inlet end of the third circulating pipe (42) is connected to the switching seat (5) and is connected to the switching chamber (51); the switching chamber (51) is provided with a switching assembly for switching the gas flow direction; the switching assembly comprises a switching roller (52) and a rotating member, the switching roller (52) is rotatably mounted in the switching chamber (51); the neutralization tank (41) is provided with a first partition plate (41) 1), the first partition plate (411) divides the interior of the neutralization tank (41) into a neutralization zone (412) and an adsorption zone (413), the neutralizer is filled in the neutralization zone (412), and the neutralizer is a hydrochloric acid solution, the outlet end of the third circulation pipe (42) is connected to the neutralization zone (412), and the inlet end of the fourth circulation pipe (43) is connected to the adsorption zone (413); the plate surface of the first partition plate (411) is provided with a connecting groove (414), the neutralization zone (412) and the adsorption zone (413) are connected to each other through the connecting groove (414), and the adsorption zone (413) is provided with a spray pipe (6) for spraying water into the adsorption zone (413);A heat exchange tube (7) is provided in the neutralization zone (412), and the heat exchange tube (7) is arranged in a serpentine shape in the neutralization zone (412). The inlet end of the heat exchange tube (7) extends out of the neutralization tank (41) and is connected to a water supply pipe (8), and the outlet end of the heat exchange tube (7) extends into the adsorption zone (413) and is connected to the spray pipe (6); the inlet end of the heat exchange tube (7) is connected to the switching seat (5) and is in communication with the switching chamber (51), the inlet end of the water supply pipe (8) is used to connect to a water supply device, and the outlet end of the water supply pipe (8) is connected to the switching seat (5) and is in communication with the switching chamber (51); the switching roller (52) is provided with a heat exchange tube (7) in the neutralization zone (412). A second switching flow channel (524) is provided, and both ends of the second switching flow channel (524) penetrate the peripheral wall of the switching roller (52) to form a third opening (525) and a fourth opening (526). When the outlet end of the front section (221) is connected to the inlet end of the rear section (222), the switching roller (52) covers the outlet end of the water supply pipe (8) and the inlet end of the heat exchange pipe (7) respectively. When the outlet end of the front section (221) is connected to the inlet end of the third circulation pipe (42), the third opening (525) is connected to the outlet end of the water supply pipe (8) and the fourth opening (526) is connected to the inlet end of the heat exchange pipe (7).

2. A liquid ammonia storage and transportation device according to claim 1, characterized in that: A first switching flow channel (521) is provided in the switching roller (52), and both ends of the first switching flow channel (521) penetrate the peripheral wall of the switching roller (52) to form a first opening (522) and a second opening (523); when the switching roller (52) drives the first opening (522) to communicate with the outlet end of the front section (221), the second opening (523) of the first switching flow channel (521) is connected to the inlet end of the rear section (222), and the switching roller (52) covers the inlet end of the third circulation pipe (42); when the switching roller (52) drives the second opening (523) to communicate with the outlet end of the front section (221), the first opening (522) of the first switching flow channel (521) is connected to the inlet end of the third circulation pipe (42), and the switching roller (52) covers the inlet end of the rear section (222); the rotating member is arranged on the switching seat (5) to drive the switching roller (52) to rotate around its own central axis.

3. A liquid ammonia storage and transportation device according to claim 1, characterized in that: The heat exchange tube (7) partially extends into the neutralizer.

4. A liquid ammonia storage and transportation device according to claim 1, characterized in that: A second partition plate (415) is installed in the neutralization zone (412), and the second partition plate (415) divides the neutralization zone (412) into a storage chamber (416) and a neutralization chamber (417). The adsorption zone (413) is connected to the neutralization chamber (417), and the outlet end of the third circulation pipe (42) is connected to the neutralization chamber (417). The neutralizer is filled in the storage chamber (416). The plate surface of the second partition plate (415) is provided with a first volatilization groove (418) for volatilization of the neutralizer. A sliding plate (44) is slidably installed in the neutralization chamber (417). The plate surface of the sliding plate (44) is provided with a second volatilization groove (441), and the first volatilization groove (418) and the second volatilization groove (441) are arranged in a staggered manner. When the sliding plate (44) is attached to the second partition plate (415), the sliding plate (44) covers the first volatilization groove (418); a linkage component (9) is provided between the sliding plate (44) and the switching roller (52), and when the outlet end of the front section (221) is connected to the inlet end of the third circulation pipe (42), the linkage component (9) forces the sliding plate (44) to lift away from the second partition plate (415).

5. A liquid ammonia storage and transportation device according to claim 4, characterized in that: The plate surface of the sliding plate (44) is provided with a sliding rod (442), and one end of the sliding rod (442) away from the sliding plate (44) extends out of the neutralization tank (41); the linkage component (9) comprises a linkage disk (91) and a linkage rod (92), and the linkage disk (91) is coaxially arranged on the end surface of the switching roller (52), one end of the linkage rod (92) is hinged to the linkage disk (91), and the other end is hinged to the end of the sliding rod (442) away from the sliding plate (44); when the outlet end of the front section (221) is connected to the inlet end of the rear section (222), the sliding plate (44) abuts against the second partition plate (415), and when the outlet end of the front section (221) is connected to the inlet end of the third circulation pipe (42), the sliding plate (44) is lifted away from the second partition plate (415).

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