Nitrogen compressor with cleaning function

Abstract

The application provides a nitrogen compressor with a cleaning function, and relates to the field of nitrogen compressors.The nitrogen compressor comprises a nitrogen compressor equipment body, a cooler shell is arranged at the output end of the nitrogen compressor equipment body, a pipe bundle is fixedly connected inside the cooler shell, a protective ring is fixedly connected inside the cooler shell, a scraper is arranged between the protective ring and the pipe bundle, an annular cavity is arranged inside the protective ring, and a mounting ring extending out of the protective ring is slidably connected inside the annular cavity.The cooperation between the motor, the rotating rod, the bevel gear, the teeth, the mounting ring, the fixed rod and the telescopic rod and other structures achieves the scraping of the water scale on the surface of the pipe bundle by the scraper, so that manual shutdown cleaning is not needed, the production interruption time is reduced, the production efficiency is improved, the water scale is removed in time, the cooling effect of the inter-electrode cooler is ensured, the nitrogen compression efficiency is improved, and the equipment energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen compressors, and more specifically, to a nitrogen compressor with a cleaning function. Background Technology

[0002] A nitrogen compressor is a device used to compress nitrogen gas to increase its pressure. It is widely used in chemical, metallurgical, and food industries. Its core function is to increase the pressure of low-pressure nitrogen gas through mechanical work to meet the needs of nitrogen transportation, reaction, and preservation in industry. It often employs a multi-stage compression method, combined with an interstage cooler to reduce gas temperature, improve compression efficiency, and reduce energy consumption.

[0003] In the process of converting low-pressure nitrogen into high-pressure nitrogen in a circulating nitrogen compressor, the interstage cooler plays a crucial role in cooling the compressed gas. However, in actual operation, scale easily forms inside the interstage cooler. The accumulation of scale severely affects the cooling effect, leading to reduced nitrogen compression efficiency, increased equipment energy consumption, accelerated equipment wear, shortened equipment lifespan, and increased maintenance costs. Traditional periodic shutdown cleaning methods not only interrupt production but also fail to address the problems caused by scale accumulation in real time. Therefore, we propose a nitrogen compressor with a cleaning function to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to solve the current problems of BBB.

[0005] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a nitrogen compressor with a cleaning function, comprising a nitrogen compressor body, a cooler housing at the output end of the nitrogen compressor body, a tube bundle fixedly connected inside the cooler housing, a protective ring fixedly connected inside the cooler housing, a scraper between the protective ring and the tube bundle, an annular cavity inside the protective ring, a mounting ring extending out of the protective ring slidably connected inside the annular cavity, teeth on one side surface of the mounting ring inside the annular cavity, a rotating rod rotatably connected inside the annular cavity, a bevel gear fixedly connected to the lower end of the rotating rod, the bevel gear meshing with the teeth on the surface of the mounting ring, a drive assembly outside the cooler housing, and a connecting assembly on the surface of the mounting ring.

[0006] As a preferred technical solution of this application, the drive assembly includes a mounting bracket, which is fixedly connected to the outer surface of the cooler housing. The upper end of the rotating rod rotates through the mounting ring and the cooler housing in sequence. A motor is fixedly connected to the lower surface of the cross plate of the mounting bracket, and the output shaft of the motor is fixedly connected to the rotating rod through a coupling.

[0007] As a preferred technical solution of this application, the protective ring has a sealing groove inside, and a sealing ring is fixedly connected to the surface of the mounting ring, and the sealing ring is slidably connected inside the sealing groove.

[0008] As a preferred technical solution of this application, the connecting assembly includes a fixed rod, a telescopic rod is slidably connected inside the fixed rod, and a mounting plate is fixedly connected to the end of the telescopic rod away from the fixed rod.

[0009] As a preferred technical solution of this application, the mounting plate is internally threaded with mounting bolts, and the mounting bolts are threadedly connected to the scraper.

[0010] As a preferred technical solution of this application, a compression spring is fixedly connected between the telescopic rod and the fixed rod, and the compression spring is located inside the fixed rod.

[0011] As a preferred technical solution of this application, both sides of the cooler shell are fixedly connected to a first connecting pipe that communicates with the interior, and both ends of the tube bundle are fixedly connected to a second connecting pipe that communicates with the first connecting pipe. The cooler shell is connected to external equipment through the first connecting pipe.

[0012] As a preferred technical solution of this application, two third connecting pipes are fixedly connected to the lower surface of the cooler housing, and the two third connecting pipes are also connected to the interior of the cooler housing.

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

[0014] In the scheme of this application:

[0015] 1. Through the cooperation of the motor, rotating rod, bevel gear, teeth, mounting ring, fixing rod, telescopic rod and other structures, the scraper can remove scale from the surface of the tube bundle, thus eliminating the need for manual cleaning and reducing production downtime. This improves production efficiency, ensures timely scale removal, guarantees the cooling effect of the inter-electrode cooler, improves nitrogen compression efficiency, and reduces equipment energy consumption.

[0016] 2. The cooperation between the protective ring, sealing groove and sealing ring and other structures further improves the sealing effect between the mounting ring and the protective ring, and ensures the meshing effect between the bevel gear and the teeth. At the same time, the setting of the compression spring also effectively improves the cleaning effect of the scraper on the tube bundle. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a nitrogen compressor with cleaning function provided in this application;

[0018] Figure 2A schematic diagram of the cooler housing in a nitrogen compressor with cleaning function provided in this application;

[0019] Figure 3 A first schematic cross-sectional view of the cooler housing in a nitrogen compressor with cleaning function provided in this application;

[0020] Figure 4 A second schematic cross-sectional view of the cooler housing in a nitrogen compressor with cleaning function provided in this application;

[0021] Figure 5 A cross-sectional structural schematic diagram of the protective ring in a nitrogen compressor with cleaning function provided in this application;

[0022] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0023] Figure 7 A cross-sectional view of the fixing rod in the nitrogen compressor with cleaning function provided in this application.

[0024] The image shows:

[0025] 1. Cooler housing; 2. Tube bundle; 3. Protective ring; 4. Scraper; 5. Annular cavity; 6. Mounting ring; 7. Teeth; 8. Rotating rod; 9. Bevel gear; 10. Mounting bracket; 11. Motor; 12. Sealing groove; 13. Sealing ring; 14. Fixing rod; 15. Telescopic rod; 16. Mounting plate; 17. Mounting bolt; 18. Compression spring; 19. First connecting pipe; 20. Second connecting pipe; 21. Third connecting pipe; 22. Nitrogen compressor body. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] Example 1

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 A nitrogen compressor with cleaning function includes a nitrogen compressor body 22. A cooler housing 1 is provided at the output end of the nitrogen compressor body 22. A tube bundle 2 is fixedly connected inside the cooler housing 1. A protective ring 3 is fixedly connected inside the cooler housing 1. A scraper 4 is provided between the protective ring 3 and the tube bundle 2. An annular cavity 5 is opened inside the protective ring 3. An installation ring 6 extending out of the protective ring 3 is slidably connected inside the annular cavity 5. Teeth 7 are provided on one side surface of the installation ring 6 inside the annular cavity 5. A rotating rod 8 is rotatably connected inside the annular cavity 5. A bevel gear 9 is fixedly connected to the lower end of the rotating rod 8. The bevel gear 9 and the teeth 7 on the surface of the installation ring 6 are meshed. A drive assembly is provided outside the cooler housing 1. A connecting assembly is provided on the surface of the installation ring 6.

[0032] In the above embodiments, the nitrogen compressor equipment body 22 is an existing device. Since it is a technology known in the art, it will not be described in detail here.

[0033] In the above embodiment, the arc surfaces at both ends of the cooler housing 1 are connected to the middle pipe section by flanges, which facilitates the maintenance of the internal tube bundle 2. Since this is a known technical means in the art, it will not be described in detail here.

[0034] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the drive assembly includes a mounting bracket 10, which is fixedly connected to the outer surface of the cooler housing 1. The upper end of the rotating rod 8 rotates through the mounting ring 6 and the cooler housing 1 in sequence. A motor 11 is fixedly connected to the lower surface of the cross plate of the mounting bracket 10. The output shaft of the motor 11 is fixedly connected to the rotating rod 8 through a coupling.

[0035] Among them, the motor 11 is matched with a power supply, wires, controller and microcomputer, etc. Since they are not the main structures, they will not be described in detail in this article.

[0036] Furthermore, such as Figure 1 , Figure 2, Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a sealing groove 12 is provided inside the protective ring 3, and a sealing ring 13 is fixedly connected to the surface of the mounting ring 6. The sealing ring 13 is slidably connected inside the sealing groove 12. Through the cooperation between the sealing groove 12 and the sealing ring 13, the sealing performance between the mounting ring 6 and the protective ring 3 is further improved.

[0037] Example 2

[0038] The nitrogen compressor with cleaning function provided in Example 1 has been further optimized, specifically, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the connecting assembly includes a fixed rod 14, a telescopic rod 15 is slidably connected inside the fixed rod 14, and a mounting plate 16 is fixedly connected to the end of the telescopic rod 15 away from the fixed rod 14.

[0039] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the mounting plate 16 has an internal threaded mounting bolt 17, which is threadedly connected to the scraper 4. When the operator needs to disassemble and replace the scraper 4, the scraper 4 can be disassembled by rotating the mounting bolt 17.

[0040] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a compression spring 18 is fixedly connected between the telescopic rod 15 and the fixed rod 14. The compression spring 18 is located inside the fixed rod 14. By setting the compression spring 18, the scraper 4 is always in contact with the surface of the tube bundle 2, thereby improving the cleaning effect of the scraper 4 on the scale on the surface of the tube bundle 2 and ensuring the cooling effect of the tube bundle 2.

[0041] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, both sides of the cooler housing 1 are fixedly connected to a first connecting pipe 19 that communicates with the interior, and both ends of the tube bundle 2 are fixedly connected to a second connecting pipe 20 that communicates with the first connecting pipe 19. The cooler housing 1 is connected to external equipment through the first connecting pipe 19, so that compressed nitrogen gas is introduced into the interior of the tube bundle 2 through the first connecting pipe 19 and the second connecting pipe 20.

[0042] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, two third connecting pipes 21 are fixedly connected to the lower surface of the cooler housing 1. The two third connecting pipes 21 are also connected to the interior of the cooler housing 1. The arrangement of the third connecting pipes 21 facilitates the introduction of cooling medium into the interior of the cooler housing 1 and facilitates connection with external cooling medium circulation equipment.

[0043] The nitrogen compressor with cleaning function provided by this utility model is used as follows:

[0044] First, a cooling medium is injected into the cooler housing 1 through the third connecting pipe 21. Subsequently, nitrogen gas, which has been compressed by the nitrogen compressor body 22 and has increased in temperature, is introduced into the tube bundle 2. Based on the principle of heat exchange, heat is transferred to the cooling medium, thereby reducing the temperature of the gas inside the tube bundle 2 and achieving the purpose of cooling the gas inside the tube bundle 2. When it is necessary to clean the scale on the surface of the tube bundle 2, the motor 11 is started. The rotation of the output shaft of the motor 11 drives the rotation of the rotating rod 8. The rotation of the rotating rod 8 replaces the rotation of the bevel gear 9. Since the bevel gear 9 and the teeth 7 are meshed, the rotation of the bevel gear 9 will drive the installation ring 6 to rotate. The rotation of the installation ring 6 will drive the movement of the fixed rod 14, the telescopic rod 15 and the mounting plate 16, which in turn drives the scraper 4 to move on the surface of the tube bundle 2, ultimately achieving the cleaning of the scale on the surface of the tube bundle 2 without stopping the equipment.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A nitrogen compressor with a cleaning function, characterized in that, The device includes a nitrogen compressor body (22), the output end of which is provided with a cooler housing (1), a tube bundle (2) is fixedly connected inside the cooler housing (1), a protective ring (3) is fixedly connected inside the cooler housing (1), a scraper (4) is provided between the protective ring (3) and the tube bundle (2), an annular cavity (5) is opened inside the protective ring (3), an installation ring (6) extending out of the protective ring (3) is slidably connected inside the annular cavity (5), teeth (7) are provided on one side surface of the installation ring (6) located inside the annular cavity (5), a rotating rod (8) is rotatably connected inside the annular cavity (5), a bevel gear (9) is fixedly connected to the lower end of the rotating rod (8), the bevel gear (9) and the teeth (7) on the surface of the installation ring (6) are meshed, a drive assembly is provided outside the cooler housing (1), and a connecting assembly is provided on the surface of the installation ring (6).

2. A nitrogen compressor with cleaning function according to claim 1, characterized in that, The drive assembly includes a mounting bracket (10), which is fixedly connected to the outer surface of the cooler housing (1). The upper end of the rotating rod (8) rotates through the mounting ring (6) and the cooler housing (1) in sequence. A motor (11) is fixedly connected to the lower surface of the cross plate of the mounting bracket (10). The output shaft of the motor (11) is fixedly connected to the rotating rod (8) through a coupling.

3. A nitrogen compressor with cleaning function according to claim 2, characterized in that, The protective ring (3) has a sealing groove (12) inside, and the mounting ring (6) has a sealing ring (13) fixedly connected to its surface. The sealing ring (13) is slidably connected inside the sealing groove (12).

4. A nitrogen compressor with cleaning function according to claim 3, characterized in that, The connecting assembly includes a fixed rod (14), a telescopic rod (15) is slidably connected inside the fixed rod (14), and a mounting plate (16) is fixedly connected to one end of the telescopic rod (15) away from the fixed rod (14).

5. A nitrogen compressor with cleaning function according to claim 4, characterized in that, The mounting plate (16) has an internal threaded mounting bolt (17) which is threadedly connected to the scraper (4).

6. A nitrogen compressor with cleaning function according to claim 5, characterized in that, A compression spring (18) is fixedly connected between the telescopic rod (15) and the fixed rod (14), and the compression spring (18) is located inside the fixed rod (14).

7. A nitrogen compressor with cleaning function according to claim 6, characterized in that, Both sides of the cooler housing (1) are fixedly connected to a first connecting pipe (19) that communicates with the interior. Both ends of the tube bundle (2) are fixedly connected to a second connecting pipe (20) that communicates with the first connecting pipe (19). The cooler housing (1) is connected to external equipment through the first connecting pipe (19).

8. A nitrogen compressor with cleaning function according to claim 7, characterized in that, Two third connecting pipes (21) are fixedly connected to the lower surface of the cooler housing (1), and the two third connecting pipes (21) are also connected to the interior of the cooler housing (1).

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