Heat exchange device based on ammonia synthesis tower

Abstract

The utility model relates to the technical field of heat exchange devices, in particular to a heat exchange device based on an ammonia synthesis tower, which comprises a mixing cavity, classification cavities are arranged on two sides above the mixing cavity, a plurality of heat exchange main pipes are arranged between the lower surfaces of the classification cavities and the upper surface of the mixing cavity, and two ends of the heat exchange main pipes are respectively communicated with the mixing cavity and the classification cavities. A plurality of heat exchange branch pipes are evenly arranged on the outer side of the heat exchange main pipe, a plurality of connecting pipes are jointly arranged on the sides, close to each other, of the heat exchange branch pipes and the heat exchange main pipe, the two ends of the connecting pipes communicate with the heat exchange branch pipes and the heat exchange main pipe correspondingly, and the outer surfaces of the heat exchange main pipe and the heat exchange branch pipes are jointly sleeved with a plurality of isolation discs. And a plurality of main matching holes, auxiliary matching holes and circulating holes are formed in the upper surfaces of the plurality of isolation discs. The device is reasonable in design, mixed gas can be divided into a plurality of small gas flows to achieve the effect of rapid heat exchange, meanwhile, the mixed gas to be heated can make more sufficient and comprehensive contact with the heat exchange device, and the gas reaction and mixing efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange devices, in particular to a heat exchange device based on an ammonia synthesis tower. Background Art

[0002] An ammonia synthesis tower is a device used to catalyze the reaction of nitrogen and hydrogen under high pressure and high temperature to synthesize ammonia. In the process of using the existing ammonia synthesis tower, in order to heat the gas entering the ammonia synthesis tower to the reaction temperature and cool the gas after the reaction, a heat exchanger is also provided in the tower. However, the existing heat exchanger mostly exchanges heat through a single heat exchange tube during use, and there is a problem of low heat exchange efficiency during use, which affects the gas reaction efficiency. To this end, we propose a heat exchange device based on an ammonia synthesis tower. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a heat exchange device based on an ammonia synthesis tower.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows: a heat exchange device based on an ammonia synthesis tower includes a mixing chamber, classification chambers are provided on both sides above the mixing chamber, and a plurality of heat exchange main pipes are provided between the lower surface of the classification chamber and the upper surface of the mixing chamber, and the two ends of the heat exchange main pipe are respectively connected with the mixing chamber and the classification chamber, and a plurality of heat exchange branch pipes are evenly provided on the outside of the heat exchange main pipe, and a plurality of connecting pipes are provided on the side close to the heat exchange branch pipe and the heat exchange main pipe, and the two ends of the connecting pipes are respectively connected with the heat exchange branch pipe and the heat exchange main pipe, and a plurality of isolation disks are installed on the outer surfaces of the heat exchange main pipe and the heat exchange branch pipe, and a plurality of main distribution holes, auxiliary distribution holes and flow holes are opened on the upper surfaces of the plurality of isolation disks, and the main distribution holes are connected with the heat exchange main pipe by plugging, and the auxiliary distribution holes are connected with the heat exchange branch pipe by plugging, and the flow holes are arranged in a spiral shape.

[0005] Preferably, an exhaust port is provided in the middle of the front end of the outer surface of the mixing chamber.

[0006] Preferably, an air inlet is provided in the middle of the upper surface of the classification cavity.

[0007] Preferably, a plurality of the connecting pipes are arranged together in a spiral shape.

[0008] Preferably, the circulation hole and the heat exchange main pipe are plugged and connected to each other, and the diameter of the circulation hole is larger than the diameter of the heat exchange main pipe.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] During the application of the technical solution, when the heat exchange device is used in an ammonia synthesis tower, the heat exchange device can divide the mixed gas into multiple small airflows to achieve a rapid heat exchange effect, thereby avoiding the low efficiency problem of single heat exchange tube heat exchange, and at the same time, it can make the mixed gas to be heated have more full and comprehensive contact with the heat exchange device, so as to facilitate the heating and mixing of the mixed gas by the heat generated by the heat exchange of the mixed gas adsorption heat exchange device, which is beneficial to improve the efficiency of gas reaction mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the front three-dimensional structure of the heat exchange device based on the ammonia synthesis tower proposed by the utility model;

[0012] Figure 2 This is a disassembled diagram of a heat exchange device based on an ammonia synthesis tower proposed in the utility model;

[0013] Figure 3 This is a disassembled diagram of a heat exchange device based on an ammonia synthesis tower proposed in the utility model;

[0014] Figure 4 This is a disassembled diagram of the heat exchange device based on the ammonia synthesis tower proposed in the utility model.

[0015] In the figure: 1. Mixing chamber; 2. Exhaust port; 3. Classification chamber; 4. Air inlet; 5. Heat exchange main pipe; 6. Heat exchange branch pipe; 7. Connecting pipe; 8. Isolation plate; 9. Main distribution hole; 10. Secondary distribution hole; 11. Flow hole. DETAILED DESCRIPTION

[0016] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0017] As attached Figure 1-4 The heat exchange device based on an ammonia synthesis tower shown in the figure comprises a mixing chamber 1, an exhaust port 2 is provided in the middle of the front end of the outer surface of the mixing chamber 1, classification chambers 3 are provided on both sides above the mixing chamber 1, an air inlet 4 is provided in the middle of the upper surface of the classification chamber 3, a plurality of heat exchange main pipes 5 are provided between the lower surface of the classification chamber 3 and the upper surface of the mixing chamber 1, the two ends of the heat exchange main pipe 5 are respectively connected to the mixing chamber 1 and the classification chamber 3, and a plurality of heat exchange branch pipes 6 are evenly provided on the outside of the heat exchange main pipe 5.

[0018] A plurality of connecting pipes 7 are provided on the side close to the heat exchange branch pipe 6 and the heat exchange main pipe 5, and both ends of the connecting pipe 7 are respectively connected to the heat exchange branch pipe 6 and the heat exchange main pipe 5, and the plurality of connecting pipes 7 are arranged in a spiral shape. The outer surfaces of the heat exchange main pipe 5 and the heat exchange branch pipe 6 are jointly sleeved with a plurality of isolation plates 8, and the upper surfaces of the plurality of isolation plates 8 are provided with a plurality of main distribution holes 9, secondary distribution holes 10 and flow holes 11, the main distribution holes 9 and the heat exchange main pipe 5 are plugged and connected to each other, the secondary distribution holes 10 and the heat exchange branch pipe 6 are plugged and connected to each other, the flow holes 11 are arranged in a spiral shape, the flow holes 11 and the heat exchange main pipe 5 are plugged and connected to each other, and the diameter of the flow holes 11 is larger than the diameter of the heat exchange main pipe 5.

[0019] During operation, the heat exchange device will first be arranged in the heat exchange chamber in the ammonia synthesis tower. At this time, the outer surface of the isolation disk 8 installed together with the outer surface of the heat exchange main pipe 5 and the heat exchange branch pipe 6 will be connected to the inner wall of the heat exchange chamber in the ammonia synthesis tower. In this case, the heat exchange chamber will be divided into several heat exchange spaces by the isolation disk 8, and under the action of the flow holes 11 spirally opened on the isolation disk 8, the mixed gas entering the ammonia synthesis tower can be spirally wrapped around the heat exchange main pipe 5 for circulation, which is beneficial to control the mixed gas to have more full and comprehensive contact with the heat exchange main pipe 5 and the heat exchange branch pipe 6, so as to facilitate the mixed gas to absorb the heat generated on the heat exchange main pipe 5 for heating and mixing, which is beneficial to improve the efficiency of gas reaction mixing.

[0020] After the temperature of the mixed gas increases, it can flow along the channel to the air inlet 4 and enter the classification chamber 3 through the air inlet 4. At this time, the mixed gas entering the classification chamber 3 will flow toward the inside of the mixing chamber 1 through the heat exchange main pipe 5 and the heat exchange branch pipe 6. During the circulation process, the heat exchange branch pipe 6 can be used to divert the mixed gas flowing through the heat exchange main pipe 5, so as to divide the mixed gas into multiple small airflows to achieve the effect of rapid heat exchange, thereby avoiding the inefficiency problem of heat exchange in a single heat exchange tube array. During the heat exchange process, the heat of the mixed gas will be adsorbed by the heat exchange main pipe 5 and the heat exchange branch pipe 6 and transferred to the heat exchange space composed of the isolation disk 8 and the heat exchange chamber, so as to use the transferred heat to continuously heat the subsequent mixed gas, so as to achieve the effect of cyclic heat exchange. At the same time, the mixed gas transmitted by the heat exchange main pipe 5 and the heat exchange branch pipe 6 will be re-converged in the mixing chamber 1 after cooling and discharged through the exhaust port 2.

[0021] In summary: the heat exchange device can divide the mixed gas into multiple small airflows to achieve the effect of rapid heat exchange, and at the same time can make the mixed gas to be heated have more full and comprehensive contact with the heat exchange device, which is beneficial to improve the efficiency of gas reaction mixing.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A heat exchange device based on an ammonia synthesis tower, characterized in that: The invention comprises a mixing chamber (1), wherein classification chambers (3) are arranged on both sides above the mixing chamber (1), and a plurality of heat exchange main pipes (5) are arranged between the lower surface of the classification chamber (3) and the upper surface of the mixing chamber (1), and the two ends of the heat exchange main pipe (5) are respectively connected to the mixing chamber (1) and the classification chamber (3), and a plurality of heat exchange branch pipes (6) are evenly arranged on the outer side of the heat exchange main pipe (5), and a plurality of connecting pipes (7) are arranged on the side close to the heat exchange branch pipe (6) and the heat exchange main pipe (5), and the connecting pipe (7) The two ends of the heat exchange main pipe (7) are respectively connected to the heat exchange branch pipe (6) and the heat exchange main pipe (5); the outer surfaces of the heat exchange main pipe (5) and the heat exchange branch pipe (6) are jointly sleeved with a plurality of isolation disks (8); the upper surfaces of the plurality of isolation disks (8) are each provided with a plurality of main distribution holes (9) and secondary distribution holes (10) and flow holes (11); the main distribution holes (9) and the heat exchange main pipe (5) are mutually plugged and connected; the secondary distribution holes (10) and the heat exchange branch pipe (6) are mutually plugged and connected; and the flow holes (11) are collectively arranged in a spiral shape.

2. The heat exchange device based on an ammonia synthesis tower according to claim 1, characterized in that: An exhaust port (2) is provided in the middle of the front end of the outer surface of the mixing chamber (1).

3. The heat exchange device based on an ammonia synthesis tower according to claim 1, characterized in that: An air inlet (4) is provided in the middle of the upper surface of the classification chamber (3).

4. The heat exchange device based on an ammonia synthesis tower according to claim 1, characterized in that: The plurality of connecting pipes (7) are arranged together in a spiral shape.

5. The heat exchange device based on an ammonia synthesis tower according to claim 1, characterized in that: The circulation hole (11) and the heat exchange main pipe (5) are inserted and connected to each other, and the diameter of the circulation hole (11) is larger than the diameter of the heat exchange main pipe (5).

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