Circulating cooling device of unit oil cooler

Abstract

The utility model relates to the technical field of oil coolers, in particular to a circulating cooling device of a unit oil cooler, and adopts the technical scheme that the circulating cooling device comprises a heat exchange tube and a filter screen, a shell is mounted at the bottom of the heat exchange tube, bearings I are mounted at the upper end and the lower end of the shell in an embedded manner, and fixing rods I are fixedly mounted on inner rings of the two bearings I; blades are installed on the outer side of the section, located in the shell, of the first fixing rod in an annular array mode, a water suction pipe is installed on one side of the shell in an embedded mode, a water outlet pipe is installed on the other side of the shell in an embedded mode, a second bearing is installed at the bottom of the heat exchange pipe in an embedded mode, and a second fixing rod is fixedly installed on an inner ring of the second bearing; and stirring frames are installed on the two sides of the section, extending into the heat exchange pipe, of the second fixing rod, and fixing sleeves are installed in the portions, on the opposite sides of the two stirring frames, of the heat exchange pipe. The heat exchanger has the advantages that cooling water in the heat exchange tubes is mixed and stirred in the heat exchange process, so that the water temperature is uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of oil coolers, in particular to a circulating cooling device for a unit oil cooler. Background Art

[0002] The oil cooler is a turbine oil cooling device used in conjunction with steam turbines in power systems. The oil cooler is a bare tube surface type that uses circulating water as a medium to achieve heat exchange, thereby ensuring that the bearing inlet oil temperature reaches the specified value and ensuring the normal operation of the unit.

[0003] The circulating water inside the oil cooler can absorb the heat of the lubricating oil during its flow, cooling the temperature of the lubricating oil. Different parts of the circulating water may be subject to different heat loads. Some areas may absorb more heat than other areas, resulting in differences in outlet water temperature and reducing the efficiency of cooling water use. Utility Model Content

[0004] The purpose of the utility model is to provide a circulating cooling device for a unit oil cooler, which has the advantage of mixing and stirring the cooling water inside the heat exchange tube during the heat exchange process to make the water temperature uniform, thereby solving the problem of uneven water level inside the circulating cooling device.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a circulating cooling device for a unit oil cooler, comprising a heat exchange tube and a filter screen, a shell being installed at the bottom of the heat exchange tube, bearings 1 being embedded and installed at both upper and lower ends of the shell, two inner rings of the bearings 1 being fixedly installed with fixing rods 1, the fixing rods 1 being located at a section inside the shell and having blades installed in a circular array on the outside, a water suction pipe being embedded and installed on one side of the shell, a water outlet pipe being embedded and installed on the other side of the shell, bearings 2 being embedded and installed at the bottom of the heat exchange tube, fixing rods 2 being fixedly installed on the inner ring of the bearings 2, stirring racks being installed on both sides of the fixing rods 2 extending into a section inside the heat exchange tube, and a fixing sleeve being installed inside the heat exchange tube on the opposite side of the two stirring racks.

[0006] Preferably, a motor is installed at the bottom of the shell, the motor transmission structure is fixedly connected to the bottom of the fixing rod 1, and the top of the fixing rod 1 is fixedly connected to the bottom of the fixing rod 2.

[0007] Preferably, a fixing bracket is installed on the side of the water suction pipe facing away from the shell, and a connecting pipe is embedded and installed on the side of the fixing bracket facing away from the water suction pipe.

[0008] Preferably, a socket is provided on the top of the fixing frame, and the filter is inserted into the fixing frame through the socket.

[0009] Preferably, the end of the water outlet pipe facing away from the shell extends from the side of the heat exchange tube into the interior thereof.

[0010] Preferably, a drain pipe is embedded and installed below the side of the heat exchange tube facing away from the water outlet pipe, and an observation window is embedded and installed at the rear side of the heat exchange tube.

[0011] Preferably, a liquid inlet pipe and a liquid outlet pipe are embedded in the top of the heat exchange tube, and one end of the liquid inlet pipe and the liquid outlet pipe extending into the interior of the heat exchange tube are fixedly connected to the fixing sleeve.

[0012] Preferably, a connecting frame is welded to the front side of the heat exchange tube, and the connecting frame is provided with connecting holes in a rectangular array.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model is provided with a fixed rod 1, a fixed rod 2 and a stirring frame. The motor drives the fixed rod 1 to rotate through the transmission structure. The fixed rod 1 drives the blade to rotate to transport the circulating water while driving the fixed rod 2 to rotate. The two stirring frames inside the heat exchange tube of the fixed rod 2 rotate. The two stirring frames stir the cooling water inside the heat exchange tube to make the water temperature uniform. In the process of heat exchange, the cooling water inside the heat exchange tube is mixed and stirred to make the water temperature uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first angle;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second angle;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the heat exchange tube of the present utility model;

[0018] Figure 4 This is a schematic diagram of the fixing frame and filter structure of the utility model.

[0019] In the figure: 1. Motor; 2. Housing; 3. Fixing frame; 4. Heat exchange tube; 5. Observation window; 6. Liquid inlet pipe; 7. Liquid outlet pipe; 8. Connecting frame; 9. Connecting hole; 10. Water outlet pipe; 11. Connecting pipe; 12. Drain pipe; 13. Bearing 1; 14. Fixing rod 1; 15. Paddle; 16. Bearing 2; 17. Fixing rod 2; 18. Stirring frame; 19. Fixing sleeve; 20. Filter screen; 21. Socket; 22. Suction pipe. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figure 1-Figure 4As shown, the utility model proposes a circulating cooling device for a unit oil cooler, including a heat exchange tube 4 and a filter 20. A shell 2 is installed at the bottom of the heat exchange tube 4. Bearings 13 are embedded and installed at both ends of the shell 2. A fixing rod 14 is fixedly installed on the inner ring of the two bearings 13. A motor 1 is installed at the bottom of the shell 2. The transmission structure of the motor 1 is fixedly connected to the bottom of the fixing rod 14. The motor 1 can drive the fixing rod 14 to rotate through the transmission structure. The fixing rod 14 is located inside a section of the shell 2 and is equipped with a ring array of blades 15 on the outside. A water suction pipe 22 is embedded and installed on one side of the shell 2, and the water suction pipe 22 is away from A fixing frame 3 is installed on one side of the shell 2, and a socket 21 is opened on the top of the fixing frame 3. The filter screen 20 is inserted into the fixing frame 3 from the socket 21. A connecting pipe 11 is embedded and installed on the side of the fixing frame 3 away from the water suction pipe 22. The connecting pipe 11 is connected to the circulating cooling water pipeline. The cooling water enters the fixing frame 3 from the connecting pipe 11. The filter screen 20 inside the fixing frame 3 can filter the cooling water. A water outlet pipe 10 is embedded and installed on the other side of the shell 2. The end of the water outlet pipe 10 away from the shell 2 extends into the interior of the heat exchange tube 4 from the side thereof. The water outlet pipe 10 can transport the cooling water to the interior of the heat exchange tube 4. The bottom of the heat exchange tube 4 is embedded A bearing 2 16 is installed, and a fixing rod 2 17 is fixedly installed on the inner ring of the bearing 2 16. The top of the fixing rod 14 is fixedly connected to the bottom of the fixing rod 2 17. The fixing rod 14 can drive the fixing rod 2 17 to rotate when it rotates. The fixing rod 2 17 extends into the interior of the heat exchange tube 4 and is equipped with stirring racks 18 on both sides. A fixing sleeve 19 is installed inside the heat exchange tube 4 on the opposite side of the two stirring racks 18. The top of the heat exchange tube 4 is embedded with a liquid inlet pipe 6 and a liquid outlet pipe 7. The ends of the liquid inlet pipe 6 and the liquid outlet pipe 7 extending into the interior of the heat exchange tube 4 are fixedly connected to the fixing sleeve 19. The liquid inlet pipe 6 and the liquid outlet pipe 7 are connected to the pipe for conveying lubricating oil. The lubricating oil enters the fixed sleeve 19 from the liquid inlet pipe 6, and the lubricating oil inside the fixed sleeve 19 can be discharged from the liquid outlet pipe 7. A drain pipe 12 is embedded and installed below the side of the heat exchange tube 4 away from the water outlet pipe 10. An observation window 5 is embedded and installed on the rear side of the heat exchange tube 4. The water level inside the heat exchange tube 4 can be observed through the observation window 5. The drain pipe 12 is connected to the circulation equipment, and the water with increased temperature inside the heat exchange tube 4 is discharged from the drain pipe 12. A connecting frame 8 is welded to the front side of the heat exchange tube 4. The connecting frame 8 is provided with connecting holes 9 in a rectangular array. The connecting frame 8 is fixed to the bearing structure using bolts and other tools through the connecting holes 9 of the connecting frame 8.

[0026] Working principle: The connecting pipe 11 and the drain pipe 12 are fixedly connected to the pipeline of the circulating water equipment. The motor 1 drives the fixed rod 14 to rotate through the transmission structure. The fixed rod 14 drives the paddle 15 inside the shell 2 to rotate. The circulating equipment transports the cooling water to the inside of the fixed frame 3 through the connecting pipe 11. The filter 20 inside the fixed frame 3 filters the impurities in the cooling water. The rotation of the paddle 15 generates suction, so that the suction pipe 22 absorbs the cooling water inside the fixed frame 3 and transports it to the inside of the shell 2. The paddle 15 transports the water inside the shell 2 to the inside of the outlet pipe 10. The outlet pipe 10 transports the water to the inside of the heat exchange tube 4. The liquid inlet pipe 6 and The liquid outlet pipe 7 is connected to the pipeline for conveying lubricating oil. The lubricating oil enters the fixed sleeve 19 from the liquid inlet pipe 6. The cooling water inside the heat exchange tube 4 absorbs the heat of the lubricating oil inside the fixed sleeve 19. The lubricating oil after cooling inside the fixed sleeve 19 is discharged from the liquid outlet pipe 7. The fixed rod 14 drives the fixed rod 2 17 to rotate when rotating. The fixed rod 2 17 drives the two stirring racks 18 to rotate. The two stirring racks 18 stir the cooling water inside the heat exchange tube 4 to make the water temperature uniform. The water with increased temperature inside the heat exchange tube 4 is discharged from the drain pipe 12 to the inside of the circulating water equipment. The circulating water equipment reduces the water temperature and then continues to transport it to the inside of the connecting pipe 11.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A circulating cooling device for an oil cooler of a unit, comprising a heat exchange tube (4) and a filter (20), characterized in that: A shell (2) is installed at the bottom of the heat exchange tube (4), and bearings (13) are embedded and installed at both ends of the shell (2). Two inner rings of the bearings (13) are fixedly installed with fixed rods (14). The fixed rods (14) are located in a section inside the shell (2) and are installed with blades (15) in a circular array on the outside. A water suction pipe (22) is embedded and installed on one side of the shell (2), and a water outlet pipe (10) is embedded and installed on the other side of the shell (2). Bearings (16) are embedded and installed at the bottom of the heat exchange tube (4), and fixed rods (17) are fixedly installed on the inner ring of the bearings (16). A stirring rack (18) is installed on both sides of the fixed rods (17) extending into the inner section of the heat exchange tube (4). A fixing sleeve (19) is installed inside the heat exchange tube (4) on the side opposite to the two stirring racks (18).

2. The circulating cooling device for the oil cooler of a unit according to claim 1, characterized in that: A motor (1) is installed at the bottom of the housing (2); a transmission structure of the motor (1) is fixedly connected to the bottom of the first fixing rod (14); and a top of the first fixing rod (14) is fixedly connected to the bottom of the second fixing rod (17).

3. The circulating cooling device for the oil cooler of a unit according to claim 1, characterized in that: A fixing frame (3) is installed on the side of the water suction pipe (22) facing away from the housing (2), and a connecting pipe (11) is embedded and installed on the side of the fixing frame (3) facing away from the water suction pipe (22).

4. The circulating cooling device for the oil cooler of a unit according to claim 3, characterized in that: The top of the fixing frame (3) is provided with an insertion hole (21), and the filter screen (20) is inserted into the interior of the fixing frame (3) through the insertion hole (21).

5. The circulating cooling device for the oil cooler of a unit according to claim 1, characterized in that: One end of the water outlet pipe (10) facing away from the shell (2) extends from the side of the heat exchange tube (4) into the interior thereof.

6. The circulating cooling device for the oil cooler of a unit according to claim 5, characterized in that: A drainage pipe (12) is embedded and installed below the side of the heat exchange tube (4) facing away from the water outlet pipe (10), and an observation window (5) is embedded and installed at the rear side of the heat exchange tube (4).

7. The circulating cooling device for the oil cooler of a unit according to claim 1, characterized in that: A liquid inlet pipe (6) and a liquid outlet pipe (7) are embedded and installed on the top of the heat exchange tube (4); the ends of the liquid inlet pipe (6) and the liquid outlet pipe (7) extending into the interior of the heat exchange tube (4) are fixedly connected to the fixed sleeve (19).

8. The circulating cooling device for an oil cooler of a unit according to claim 1, characterized in that: A connecting frame (8) is welded to the front side of the heat exchange tube (4), and the connecting frame (8) is provided with connecting holes (9) in a rectangular array.

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