Liquid ammonia gas supply conveying pipeline for ammonium carbonate production

Abstract

The utility model relates to the technical field of gas supply conveying pipelines, and discloses a liquid ammonia gas supply conveying pipeline for ammonium carbonate production, which solves the problem that the interior of the pipeline is inconvenient to cool in the ammonia gas conveying process, and comprises a pipeline main body, a cooling mechanism used for cooling ammonia gas in the pipeline body is arranged in the pipeline body and comprises a mounting cylinder fixedly connected to the inner wall of the pipeline body, a fan-shaped cooling plate is fixedly connected to the inner wall of the mounting cylinder, a liquid conveying pipe is arranged in the mounting cylinder, and the fan-shaped cooling plate is wound around the outer side of the liquid conveying pipe. One end of the fan-shaped cooling plate is fixedly connected with an input pipe, the other end of the fan-shaped cooling plate is fixedly connected with an output pipe, the fan-shaped cooling plate is communicated with the infusion pipe through the output pipe and the input pipe, the infusion pipe is filled with cooling liquid, and one side of the infusion pipe is fixedly connected with an infusion pump. The purpose of conveniently carrying out cooling control on the temperature of the ammonia gas in the transportation process is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas supply and delivery pipelines, in particular to a gas supply and delivery pipeline for ammonium carbonate production of liquid ammonia. Background Art

[0002] Liquid ammonia is an important industrial chemical with many uses, including being used as a raw material for nitrogen fertilizer. It can be sprayed directly into the soil to promote plant growth. It is also widely used in industrial and commercial refrigeration. In the metal processing field, liquid ammonia is used to prepare nitrogen oxides for surface carburizing, heat treatment and other metal processing processes. When using ammonium carbonate to produce liquid ammonia, the ammonia needs to be transported and liquefied. However, in the process of collecting and transporting ammonia, carbon dioxide and water vapor are mixed in the ammonia, resulting in impure ammonia. At the same time, the temperature needs to be controlled during the transportation and liquefaction of ammonia to avoid changes in physical properties caused by overcooling or overheating of ammonia, such as solidification, crystallization, and viscosity increase. At the same time, reducing the temperature of ammonia can pre-cool the subsequent liquefaction. Controlling the temperature can reduce flow loss and energy consumption, and improve the gas supply efficiency.

[0003] In view of the above problems, a liquid ammonia gas supply and delivery pipeline for ammonium carbonate production is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a liquid ammonia gas supply and delivery pipeline for ammonium carbonate production. The device is adopted to work, thereby solving the problem that it is inconvenient to cool the inside of the pipeline during the transportation of ammonia.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid ammonia gas supply and delivery pipeline for ammonium carbonate production, comprising a pipeline body, wherein a cooling mechanism for cooling ammonia gas inside the pipeline body is arranged inside the pipeline body;

[0006] The cooling mechanism includes a mounting tube fixedly connected to the inner wall of the pipeline body, a fan-shaped cooling plate is fixedly connected to the inner wall of the mounting tube, an infusion tube is arranged inside the mounting tube, the fan-shaped cooling plate is arranged around the outside of the infusion tube, one end of the fan-shaped cooling plate is fixedly connected to the input tube, the other end of the fan-shaped cooling plate is fixedly connected to the output tube, the fan-shaped cooling plate and the infusion tube are connected through the output tube and the input tube, the infusion tube is filled with cooling liquid, and one side of the infusion tube is fixedly connected to a liquid pump.

[0007] Preferably, a temperature monitor is fixedly connected to the outside of the pipeline body.

[0008] Preferably, a card slot is opened on the inner wall of the pipeline body, a silicone adsorption plate is arranged inside the card slot, a card block is fixedly connected to the outer side of the silicone adsorption plate, and the card block is slidably connected to the inside of the card slot.

[0009] Preferably, a GSM membrane is fixedly connected to the inner wall of the pipeline body.

[0010] Preferably, an outer protective layer, a heat insulation layer and an anti-corrosion layer are sequentially arranged inside the pipeline body from the outside to the inside.

[0011] Preferably, an outer pipe sleeve is fixedly connected to the outer side of the pipeline body, a flange is fixedly connected to the outer side of the outer pipe sleeve, and a sealing ring is fixedly connected to the inner wall of the outer pipe sleeve.

[0012] Preferably, a pressure safety valve is fixedly connected to the outside of the pipeline body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model proposes a liquid ammonia gas supply and delivery pipeline for ammonium carbonate production. When the ammonia is transported, the ammonia is cooled when passing through a fan-shaped cooling plate. The fan-shaped cooling plate, the input pipe, the infusion pipe and the output pipe are all filled with cooling liquid. The contact area between the ammonia and the pipe wall filled with cooling liquid can be increased by setting the spiral fan-shaped cooling plate. The liquid pump provides power for the flow of the cooling liquid to form a cooling liquid circulation. The temperature monitor is used to monitor the temperature in real time, and finally the purpose of facilitating the cooling control of the ammonia temperature during transportation is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic plan view of the internal structure of the pipeline main body of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the silica gel adsorption plate of the utility model;

[0018] Figure 4 It is a schematic diagram of the plane structure of the pipeline main body of the utility model.

[0019] In the figure: 1. pipeline body; 11. outer pipe sleeve; 12. flange; 13. sealing ring; 14. slot; 15. silica gel adsorption plate; 151. block; 16. GSM film; 17. outer protective layer; 18. thermal insulation layer; 19. anti-corrosion layer; 2. pressure safety valve; 3. temperature monitor; 4. cooling mechanism; 41. installation cylinder; 42. fan-shaped cooling plate; 43. infusion tube; 44. liquid pump; 45. input tube; 46. output tube. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0022] Combination Figure 1 A liquid ammonia gas supply and delivery pipeline for ammonium carbonate production includes a pipeline body 1, and a cooling mechanism 4 for cooling the ammonia gas inside the pipeline body 1 is arranged inside the pipeline body 1.

[0023] The utility model is further described below in conjunction with embodiments.

[0024] Combination Figure 2-Figure 4 The cooling mechanism 4 includes a mounting tube 41 fixedly connected to the inner wall of the pipeline body 1, a fan-shaped cooling plate 42 is fixedly connected to the inner wall of the mounting tube 41, a liquid infusion tube 43 is arranged inside the mounting tube 41, the fan-shaped cooling plate 42 is arranged around the outer side of the liquid infusion tube 43, one end of the fan-shaped cooling plate 42 is fixedly connected to an input tube 45, and the other end of the fan-shaped cooling plate 42 is fixedly connected to an output tube 46, the fan-shaped cooling plate 42 and the liquid infusion tube 43 are connected through the output tube 46 and the input tube 45, and the liquid infusion tube 43 is filled with a cooling liquid. A liquid pump 44 is fixedly connected to one side of the infusion tube 43. By installing the cylinder 41, the fan-shaped cooling plate 42, the infusion tube 43, the liquid pump 44, the input tube 45 and the output tube 46, the ammonia gas can be cooled when passing through the fan-shaped cooling plate 42. The fan-shaped cooling plate 42 has the effect of increasing the contact area. At the same time, the fan-shaped cooling plate 42, the input tube 45, the infusion tube 43 and the output tube 46 provide space for the circulation of the coolant, and the liquid pump 44 provides power for the flow of the coolant.

[0025] A temperature monitor 3 is fixedly connected to the outside of the pipeline body 1 , and the temperature inside the pipeline body 1 can be monitored in real time through the setting of the temperature monitor 3 .

[0026] A card slot 14 is provided on the inner wall of the pipe body 1, and a silicone adsorption plate 15 is arranged inside the card slot 14. A card block 151 is fixedly connected to the outside of the silicone adsorption plate 15, and the card block 151 is slidably connected to the inside of the card slot 14. The card slot 14, the silicone adsorption plate 15 and the card block 151 are arranged to facilitate the positioning and installation of the silicone adsorption plate 15. The card block 151 is connected to the inside of the card slot 14 and the silicone adsorption plate 15 is rotated to fix the silicone adsorption plate 15. After installation, it is convenient to absorb water vapor inside the pipe body 1.

[0027] A GSM membrane 16 is fixedly connected to the inner wall of the pipeline body 1, and the arrangement of the GSM membrane 16 facilitates filtering of carbon dioxide in the ammonia gas.

[0028] An outer protective layer 17, a heat insulating layer 18 and an anti-corrosion layer 19 are arranged in sequence from the outside to the inside of the pipeline body 1. The outer protective layer 17 is a component made of epoxy resin and polyurethane materials, the heat insulating layer 18 is a component made of rock wool material, and the anti-corrosion layer 19 is a component made of coal tar asphalt material. Through the arrangement of the outer protective layer 17, the heat insulating layer 18 and the anti-corrosion layer 19, the outer layer of the pipeline body 1 is protected, the inside and outside are insulated, and the internal corrosion is prevented, thereby extending the service life of the pipeline body 1.

[0029] An outer pipe sleeve 11 is fixedly connected to the outside of the pipeline body 1, a flange 12 is fixedly connected to the outside of the outer pipe sleeve 11, and a sealing ring 13 is fixedly connected to the inner wall of the outer pipe sleeve 11. The arrangement of the outer pipe sleeve 11 and the flange 12 facilitates the connection of multiple pipes, and the arrangement of the sealing ring 13 ensures the sealing effect when multiple pipes are connected.

[0030] A pressure safety valve 2 is fixedly connected to the outside of the pipeline body 1. Through the setting of the pressure safety valve 2, the air pressure inside the pipeline body 1 can be detected in real time.

[0031] Specifically, when ammonia is transported, the ammonia is cooled when passing through the fan-shaped cooling plate 42. The fan-shaped cooling plate 42, the input pipe 45, the infusion pipe 43 and the output pipe 46 are all filled with coolant. By setting the spiral fan-shaped cooling plate 42, the contact area between the ammonia and the pipe wall filled with coolant can be increased. The liquid pump 44 provides power for the flow of coolant to form a coolant circulation. The temperature monitor 3 is used to monitor the temperature in real time, and finally the purpose of facilitating the temperature control of ammonia during transportation is achieved.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid ammonia gas supply and delivery pipeline for ammonium carbonate production, comprising a pipeline body (1), characterized in that: A cooling mechanism (4) for cooling the ammonia gas inside the pipeline body (1) is arranged inside the pipeline body (1); The cooling mechanism (4) comprises a mounting tube (41) fixedly connected to the inner wall of the pipeline body (1), a fan-shaped cooling plate (42) fixedly connected to the inner wall of the mounting tube (41), a liquid infusion tube (43) arranged inside the mounting tube (41), the fan-shaped cooling plate (42) being arranged around the outer side of the liquid infusion tube (43), one end of the fan-shaped cooling plate (42) being fixedly connected to an input tube (45), the other end of the fan-shaped cooling plate (42) being fixedly connected to an output tube (46), the fan-shaped cooling plate (42) and the liquid infusion tube (43) being connected via the output tube (46) and the input tube (45), the liquid infusion tube (43) being filled with cooling liquid, and one side of the liquid infusion tube (43) being fixedly connected to a liquid pump (44).

2. The liquid ammonia gas supply and delivery pipeline for ammonium carbonate production according to claim 1, characterized in that: A temperature monitor (3) is fixedly connected to the outside of the pipeline body (1).

3. The liquid ammonia gas supply and delivery pipeline for ammonium carbonate production according to claim 1, characterized in that: The inner wall of the pipe body (1) is provided with a card slot (14), a silica gel adsorption plate (15) is arranged inside the card slot (14), a card block (151) is fixedly connected to the outside of the silica gel adsorption plate (15), and the card block (151) is slidably connected to the inside of the card slot (14).

4. The liquid ammonia gas supply and delivery pipeline for ammonium carbonate production according to claim 1, characterized in that: A GSM membrane (16) is fixedly connected to the inner wall of the pipeline body (1).

5. The liquid ammonia gas supply and delivery pipeline for ammonium carbonate production according to claim 1, characterized in that: The interior of the pipeline body (1) is provided with an outer protective layer (17), a heat insulation layer (18) and an anti-corrosion layer (19) in sequence from the outside to the inside.

6. The liquid ammonia gas supply and delivery pipeline for ammonium carbonate production according to claim 1, characterized in that: An outer pipe sleeve (11) is fixedly connected to the outside of the pipeline body (1), a flange (12) is fixedly connected to the outside of the outer pipe sleeve (11), and a sealing ring (13) is fixedly connected to the inner wall of the outer pipe sleeve (11).

7. The liquid ammonia gas supply and delivery pipeline for ammonium carbonate production according to claim 1, characterized in that: A pressure safety valve (2) is fixedly connected to the outside of the pipeline body (1).

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