Air-cooled water chiller for industrial use

Abstract

The application discloses an industrial air-cooled water chiller and relates to the technical field of air-cooled water chillers; the application forms absolute physical isolation through a branch pipe cooperating with a sealing gasket, ensures that high-pressure water flow and chemical agents only act on a single pre-cooling coil that needs to be cleaned, and eliminates the efficiency loss caused by the shunting of cleaning media in the traditional method; meanwhile, the application completely avoids the pollution of other pre-cooling coils by the scale residues that are stripped off and follow the circulating water; the closed cleaning environment after isolation enables all fluid kinetic energy to be concentrated on a single coil; high-speed jet flow can penetrate deep scale bodies and form a spiral flushing track along the wall of the pre-cooling coil, so that the stripped hard scale can be instantaneously separated from the pre-cooling coil, and the problem of repeated deposition of scale pieces in the traditional flushing process does not occur; bidirectional fluid dynamics realizes the cleaning of the pre-cooling coil wall without any dead angle; after the first round of forward flushing destroys the surface structure of the scale body, the second round of reverse flushing uses fluid shear force to lift the bottom dense scale layer in one piece, and the completeness of the scale body stripping is improved.

Description

Technical Field

[0001] This invention relates to the field of air-cooled chiller technology, specifically an industrial air-cooled chiller. Background Technology

[0002] An air-cooled chiller is a refrigeration device that uses air as the cooling medium. It is mainly used for temperature control in industrial or commercial fields. It provides a stable cooling effect for equipment or environment by circulating chilled water. Unlike water-cooled chillers, air-cooled chillers do not require an additional cooling tower or external water source. Instead, they rely on fans and condenser fins for heat dissipation, making them more flexible to install and suitable for various scenarios.

[0003] In existing air-cooled chillers, all precooling coils are rigidly connected in parallel between the inlet and outlet main pipes, forming an inseparable fluid network. When cleaning media is injected, the water flow preferentially flows along the main pipe to the non-target precooling coils with lower resistance. This results in most of the cleaning fluid being concentrated in a few low-resistance precooling coils, while other high-resistance precooling coils can hardly obtain effective cleaning flow, causing the cleaning energy to be dispersed. Furthermore, after the scale is removed and enters other precooling coils with the water flow, these removed scale particles will enter the main pipe with the return liquid. Since the main pipe has a large cross-sectional area and the flow velocity is significantly reduced, these suspended scale particles will gradually deposit in the low-flow-velocity area. The redeposited scale layer is often denser and harder than the original scale layer, resulting in a decrease in the cooling efficiency of the air-cooled chiller. Summary of the Invention

[0004] In view of the problem that existing industrial air-cooled chillers have multiple pre-cooling coils connected together, resulting in low cleaning efficiency and difficulty in quickly removing scale, this invention provides an industrial air-cooled chiller.

[0005] The present invention is achieved through the following technical solution: an industrial air-cooled chiller, comprising an air-cooled chiller, wherein a plurality of water inlet pipes are installed inside the air-cooled chiller, and a plurality of water outlet pipes are installed inside the air-cooled chiller, wherein a plurality of pre-cooling coils are installed on the outer surface of the water inlet pipes and the outer surface of the water outlet pipes, and a plurality of drain connection components are installed on the outer surface of both the water inlet pipes and the outer surface of the water outlet pipes;

[0006] The inner surface of the air-cooled chiller is equipped with a fixed plate. Several cleaning and draining components are evenly distributed within the fixed plate. Each draining connection component includes a connecting pipe and a movable groove. The connecting pipe is installed on the outer surface of the cleaning and draining component. The movable groove is located inside the connecting pipe, and a magnetic ring is movably installed on the inner wall of the movable groove. A branch pipe is installed on one end of the magnetic ring, and a slot is located on one end of the branch pipe. A sealing gasket is installed on the inner wall of the slot. These draining connection components connect the pre-cooling coils to two cleaning and draining components, enabling rapid cleaning of the pre-cooling coils.

[0007] Furthermore, the connecting pipe is divided into two groups. One end surface of the connecting pipe is fixedly connected to the outer surface of the main water inlet pipe, and the other end surface of the connecting pipe is fixedly connected to the outer surface of the main water outlet pipe. The sealing gaskets are divided into two groups. The outer surface of the sealing gaskets of one group is in movable contact with the inner surface of the main water inlet pipe, and the outer surface of the sealing gaskets of the other group is in movable contact with the inner surface of the main water inlet pipe.

[0008] Furthermore, the sewage connection assembly also includes two fixed columns and two limiting columns. The two fixed columns are installed on the inner wall of the movable groove. Each of the two fixed columns has a limiting column installed inside. Each of the two fixed columns has a spring installed inside. Each of the two springs has a movable column installed on one end surface. The outer surface of the movable column is in movable contact with the inner surface of the fixed column. One end surface of the movable column is in movable contact with one end surface of the magnetic ring. An electromagnetic ring is installed on the outer surface of the passage pipe.

[0009] Furthermore, the cleaning and sewage discharge assembly includes a fixed sleeve and a second through pipe. The fixed sleeve is installed on the inner surface of the fixed plate, the second through pipe is installed on the inner surface of the fixed sleeve, and a third through pipe is installed on the inner surface of the fixed sleeve. One end surface of the second through pipe is fixedly connected to one end surface of the first through pipe.

[0010] Furthermore, a limiting ring is installed inside the three-way pipe, and several liquid passage holes are evenly distributed on the outer surface of the limiting ring. A spring is installed inside the limiting ring.

[0011] Furthermore, a magnetic ring is installed on one end surface of the second spring, an electromagnetic ring is installed on the outer surface of the third tube, a rubber plug is installed on one end surface of the magnetic ring, the rubber plug has an arc surface, and the outer surface of the rubber plug is in movable contact with the inner surface of the third tube.

[0012] Furthermore, a ball valve is installed on the outer surface of the three-way pipe, and a ball shaft is movably installed inside the ball valve. A conical flow groove is formed inside the ball shaft.

[0013] The present invention has the following beneficial effects:

[0014] (1) This industrial air-cooled chiller forms absolute physical isolation through branch pipes and sealing gaskets, ensuring that high-pressure water flow and chemical agents act only on the single pre-cooling coil that needs to be cleaned, eliminating the efficiency loss caused by the diversion of cleaning media in traditional methods, and completely avoiding the pollution of other pre-cooling coils by the peeled scale with circulating water. The closed cleaning environment after isolation allows all fluid kinetic energy to be concentrated on a single coil. The high-speed jet can penetrate deep scale and form a spiral flushing trajectory along the wall of the pre-cooling coil, so that the peeled hard scale can be removed instantly, without the problem of repeated deposition of scale flakes in traditional flushing.

[0015] (2) This industrial air-cooled chiller can perform reverse flushing cleaning by changing the position of different ball valves installed on the water supply pipe. The water flow can flush in both directions along the axial direction of the precooling coil. During forward flushing, the water flow moves in the original working direction, which can effectively loosen the deposits on the pipe wall. During reverse flushing, the water flow impacts against the growth direction of the scale layer, which can peel off the reverse-attached scale body remaining after forward flushing. The bidirectional fluid dynamics action realizes cleaning without dead angles along the wall of the precooling coil. After the first round of forward flushing destroys the surface structure of the scale body, the second round of reverse flushing uses fluid shear force to lift the entire dense scale layer at the bottom layer, improving the integrity of scale peeling.

[0016] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the air-cooled chiller of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the air-cooled chiller of the present invention;

[0019] Figure 3 This is a schematic diagram of the overall structure of the precooling coil of the present invention;

[0020] Figure 4 This is a schematic diagram of the overall structure of the precooling coil from another perspective of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the sewage connection component of the present invention;

[0022] Figure 6 This is a schematic diagram of the internal structure of the sewage connection component of the present invention from another perspective;

[0023] Figure 7 This is a schematic diagram of the internal structure of the cleaning and sewage discharge component of the present invention;

[0024] Figure 8 This is a schematic diagram of the internal structure of the three-channel pipe of the present invention.

[0025] In the diagram: 1. Air-cooled chiller; 2. Pre-cooling coil; 3. Main inlet pipe; 4. Main outlet pipe; 5. Fixing plate; 6. Fixing sleeve; 7. Pipe 1; 8. Pipe 2; 9. Pipe 3; 10. Movable groove; 11. Electromagnetic ring 1; 12. Magnetic ring; 13. Movable column; 14. Limiting column; 15. Fixing column; 16. Spring 1; 17. Branch pipe; 18. Slot; 19. Sealing gasket; 20. Limiting ring; 21. Liquid passage hole; 22. Spring 2; 23. Electromagnetic ring 2; 24. Magnetic ring; 25. Rubber plug; 26. Arc surface; 27. Ball valve; 28. Ball shaft; 29. ​​Conical flow channel. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0028] Please see Figures 1-8 The present invention provides a technical solution: an industrial air-cooled chiller, including an air-cooled chiller 1, an air-cooled chiller 1 with a plurality of inlet pipes 3 installed inside the air-cooled chiller 1, an air-cooled chiller 1 with a plurality of outlet pipes 4 installed inside the air-cooled chiller 1, a plurality of pre-cooling coils 2 jointly installed on the outer surface of the inlet pipes 3 and the outer surface of the outlet pipes 4, and a plurality of drain connection components on the outer surface of both the inlet pipes 3 and the outer surface of the outlet pipes 4.

[0029] A fixed plate 5 is installed on the inner surface of the air-cooled chiller 1. Several cleaning and draining components are evenly distributed inside the fixed plate 5. Each draining connection component includes a connecting pipe 7 and a movable groove 10. The connecting pipe 7 is installed on the outer surface of the cleaning and draining component. The movable groove 10 is opened inside the connecting pipe 7. A magnetic ring 12 is movably installed on the inner wall of the movable groove 10. A branch pipe 17 is installed on one end of the magnetic ring 12. A slot 18 is opened on one end of the branch pipe 17. A sealing gasket 19 is installed on the inner wall of the slot 18. These draining connection components are used to connect the pre-cooling coil 2 to two cleaning and draining components. The precooling coil 2 is quickly cleaned. The branch pipe 17 and the high-elasticity sealing gasket 19 form an absolute physical isolation, ensuring that the high-pressure water flow and chemical agents act only on the single precooling coil 2 that needs to be cleaned. This eliminates the efficiency loss caused by the diversion of cleaning media in traditional methods. At the same time, it completely avoids the detached scale from contaminating other precooling coils 2 with the circulating water. The closed cleaning environment after isolation allows all the fluid kinetic energy to be concentrated on a single coil. The high-speed jet can penetrate deep scale and form a spiral flushing trajectory along the wall of the precooling coil 2, so that the detached hard scale can be removed instantly, without the problem of repeated scale deposition in traditional flushing.

[0030] The connecting pipe 7 is divided into two groups. One end of the connecting pipe 7 is fixedly connected to the outer surface of the inlet main pipe 3, and the other end of the connecting pipe 7 is fixedly connected to the outer surface of the outlet main pipe 4. Several sealing gaskets 19 are divided into two groups. The outer surface of one group of sealing gaskets 19 is in movable contact with the inner surface of the inlet main pipe 3, and the outer surface of the other group of sealing gaskets 19 is in movable contact with the inner surface of the inlet main pipe 3. The sewage connection assembly also includes two fixed posts 15 and two limiting posts 14. The two fixed posts 15 are installed on the inner wall of the movable groove 10, and each of the two fixed posts 15 has a limiting post 1 installed inside. 4. Spring 16 is installed inside both fixed columns 15. Movable column 13 is installed on one end surface of both spring 16. The outer surface of movable column 13 is in contact with the inner surface of fixed column 15. One end surface of movable column 13 is in contact with one end surface of magnetic ring 24. Electromagnetic ring 11 is installed on the outer surface of pipe 7. The magnetic ring 12 drives the rubber plug 25 to squeeze spring 22 within the limiting ring 20, thereby moving the rubber plug 25 into the limiting ring 20. The electromagnetic ring 23 has the same magnetism as the corresponding surface of magnetic ring 12, which does not affect the stability of the movement of branch pipe 17.

[0031] The cleaning and sewage discharge assembly includes a fixed sleeve 6 and a second connecting pipe 8. The fixed sleeve 6 is installed on the inner surface of the fixed plate 5, and the second connecting pipe 8 is installed on the inner surface of the fixed sleeve 6. A third connecting pipe 9 is installed on the inner surface of the fixed sleeve 6. One end of the second connecting pipe 8 is fixedly connected to one end of the first connecting pipe 7. A limit ring 20 is installed inside the third connecting pipe 9. Several liquid passage holes 21 are evenly distributed on the outer surface of the limit ring 20. A second spring 22 is installed inside the limit ring 20. A magnetic ring 24 is installed on one end of the second spring 22. An electromagnetic ring 23 is installed on the outer surface of the third connecting pipe 9. A rubber stopper 25 is installed on one end of the magnetic ring 24. The rubber stopper 25 has an arc surface 26. The outer surface of the rubber stopper 25 is connected to the third connecting pipe 9. The inner surface of the pipe is in active contact with the ball valve 27 installed on the outer surface of the pipe 3 9. The ball valve 27 is equipped with a ball shaft 28, and the ball shaft 28 has a conical flow groove 29 inside. The installation position of the water supply pipe can be changed to perform reverse flushing cleaning. The water flow can flush in both directions along the axis of the precooling coil 2. During forward flushing, the water flow moves in the original working direction, which can effectively loosen the deposits on the pipe wall. During reverse flushing, the water flow impacts against the growth direction of the scale layer, which can peel off the reverse-adhered scale body remaining after forward flushing. The bidirectional fluid dynamics achieves cleaning without dead angles along the wall of the precooling coil 2. After the first round of forward flushing destroys the surface structure of the scale body, the second round of reverse flushing uses fluid shear force to lift the entire dense scale layer at the bottom, improving the integrity of scale removal.

[0032] The specific working process of this invention is as follows: After the air-cooled chiller 1 has been working for a long time, some scale remains in several pre-cooling coils 2. The controller controls the electromagnetic ring 11 to be energized for treatment. The electromagnetic ring 12 is magnetic. The corresponding surfaces of the electromagnetic ring 11 and the magnetic ring 12 have the same magnetism, and a repulsive force is generated between the electromagnetic ring 11 and the magnetic ring 12. The magnetic ring 12 drives the branch pipe 17 to move in the movable groove 10. The magnetic ring 12 squeezes the two movable columns 13, so that the squeezing column squeezes the spring 16 in the fixed column 15. The squeezing column moves until it contacts one end surface of the limiting column 14. The limiting column 14 limits the movement distance of the movable column 13 and protects the spring 16 from damage. The branch pipe 17 drives the dense The sealing gasket 19 seals the inner surface of the main water inlet pipe 3. Another branch pipe 17 drives the sealing gasket 19 to seal the inner surface of the main water outlet pipe 4, and opens the ball valve 27, thereby isolating the precooling coil 2 from the air-cooled chiller 1. The ball valve 27 is opened and connected to the water supply pipe through one of the ball valves 27. The controller controls the electromagnetic ring 23 located outside the main water outlet pipe 4 to be energized. The electromagnetic ring 23 is magnetic, and the magnetic ring 24 is made of magnetic material. The magnetic ring 12 drives the rubber plug 25 to squeeze the spring 22 inside the limiting ring 20, thereby moving the rubber plug 25 into the limiting ring 20. The electromagnetic ring 23 and the magnetic ring 12 have the same magnetism on their corresponding surfaces, which does not affect the stability of the branch pipe 17 movement.

[0033] First, water is supplied to the ball valve 27 of the main outlet pipe 4 through the water supply pipe. The angle of the ball valve 27 is changed so that the position of the ball shaft 28 inside the ball valve 27 is such that the small conical surface of the conical flow groove 29 inside the ball shaft 28 corresponds to the rubber plug 25. The water flow is accelerated and enters the connecting pipe 3 9 through the conical flow groove 29. The water flow impacts the rubber plug 25, and the arc surface 26 of the rubber plug 25 guides the water flow, causing the water to flow out through the liquid passage 21. Then, it directly enters the connecting pipe 1 7 through the connecting pipe 2 8, and enters the pre-cooling coil 2 through the space between the connecting pipe 1 7 and the branch pipe 17. The water flow impacts the scale in the pre-cooling coil 2, and the water flows out through the ball valve 27 at the other end of the pre-cooling coil 2, which can directly drain the scale. When the water flows out, the rubber stopper 25 moves into the limiting ring 20 and will not impact the rubber stopper 25. The branch pipe 17 and the high elastic sealing gasket 19 form an absolute physical isolation, ensuring that the high pressure water flow and chemical agent only act on the single precooling coil 2 that needs to be cleaned. This eliminates the efficiency loss caused by the diversion of cleaning media in traditional methods, and completely avoids the detached scale from contaminating other precooling coils 2 with the circulating water. The closed cleaning environment after isolation allows all the fluid kinetic energy to be concentrated on a single coil. The high-speed jet can penetrate deep scale and form a spiral flushing trajectory along the wall of the precooling coil 2, so that the detached hard scale can be removed instantly, without the problem of repeated deposit of scale in traditional flushing.

[0034] Furthermore, the water supply pipe installation position can be changed to perform reverse flushing cleaning. The water flow can flush along the precooling coil 2 in both forward and reverse directions. During forward flushing, the water flow moves in the original working direction, which can effectively loosen the deposits on the pipe wall. During reverse flushing, the water flow impacts against the growth direction of the scale layer, which can peel off the scale that is attached in the opposite direction after forward flushing. The bidirectional fluid dynamics achieves thorough cleaning along the wall of the precooling coil 2 without dead angles. After the first round of forward flushing destroys the surface structure of the scale, the second round of reverse flushing uses fluid shear force to lift up the entire dense scale layer at the bottom, improving the integrity of scale removal.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An industrial air-cooled chiller, comprising an air-cooled chiller (1), characterized in that: The air-cooled chiller (1) has several inlet pipes (3) installed inside, and several outlet pipes (4) installed inside. Several pre-cooling coils (2) are installed on the outer surface of the inlet pipe (3) and the outer surface of the outlet pipe (4). Several sewage connection components are installed on the outer surface of the inlet pipe (3) and the outer surface of the outlet pipe (4). The inner surface of the air-cooled chiller (1) is equipped with a fixed plate (5). Several cleaning and sewage discharge components are evenly distributed inside the fixed plate (5). The sewage discharge connection component includes a connecting pipe (7) and a movable groove (10). The connecting pipe (7) is installed on the outer surface of the cleaning and sewage discharge component. The connecting pipe (7) has a movable groove (10) inside. A magnetic ring (12) is movably installed on the inner wall of the movable groove (10). A branch pipe (17) is installed on one end surface of the magnetic ring (12). A slot (18) is opened on one end surface of the branch pipe (17). A sealing gasket (19) is installed on the inner wall of the slot (18). Several sewage discharge connection components are used to connect the precooling coil (2) with two cleaning and sewage discharge components to quickly clean several precooling coils (2).

2. An industrial air-cooled chiller according to claim 1, characterized in that: The first connecting pipe (7) is divided into two groups. One end surface of the first connecting pipe (7) is fixedly connected to the outer surface of the main water inlet pipe (3), and the other end surface of the first connecting pipe (7) is fixedly connected to the outer surface of the main water outlet pipe (4). Several sealing gaskets (19) are divided into two groups. The outer surface of the sealing gasket (19) of one group is in contact with the inner surface of the main water inlet pipe (3), and the outer surface of the sealing gasket (19) of the other group is in contact with the inner surface of the main water inlet pipe (3).

3. An industrial air-cooled chiller according to claim 1, characterized in that: The sewage connection assembly also includes two fixed columns (15) and two limiting columns (14). The two fixed columns (15) are installed on the inner wall of the movable groove (10). The limiting columns (14) are installed inside the two fixed columns (15). Spring 1 (16) is installed inside the two fixed columns (15). Movable columns (13) are installed on one end surface of the two spring 1 (16). The outer surface of the movable column (13) is in contact with the inner surface of the fixed column (15). One end surface of the movable column (13) is in contact with one end surface of the magnet ring (24). Electromagnetic ring 1 (11) is installed on the outer surface of the through pipe 1 (7).

4. An industrial air-cooled chiller according to claim 1, characterized in that: The cleaning and sewage discharge assembly includes a fixed sleeve (6) and a second through pipe (8). The fixed sleeve (6) is installed on the inner surface of the fixed plate (5). The second through pipe (8) is installed on the inner surface of the fixed sleeve (6). A third through pipe (9) is installed on the inner surface of the fixed sleeve (6). One end of the second through pipe (8) is fixedly connected to one end of the first through pipe (7).

5. An industrial air-cooled chiller according to claim 4, characterized in that: The inner side of the three-channel pipe (9) is equipped with a limiting ring (20), and the outer surface of the limiting ring (20) is evenly provided with several liquid passage holes (21). The inner side of the limiting ring (20) is equipped with a spring (22).

6. An industrial air-cooled chiller according to claim 5, characterized in that: A magnet ring (24) is installed on one end surface of the second spring (22), an electromagnetic ring (23) is installed on the outer surface of the third tube (9), a rubber plug (25) is installed on one end surface of the magnet ring (24), the rubber plug (25) has an arc surface (26), and the outer surface of the rubber plug (25) is in contact with the inner surface of the third tube (9).

7. An industrial air-cooled chiller according to claim 6, characterized in that: A ball valve (27) is installed on the outer surface of the three-way pipe (9), and a ball shaft (28) is movably installed inside the ball valve (27). A conical flow groove (29) is opened inside the ball shaft (28).

Images