Tubular oil cooler convenient to maintain

Abstract

The utility model discloses a tubular oil cooler convenient to maintain, and relates to the related technical field of oil coolers. The device comprises a cooling shell, a sealing cover and an oil outlet cavity, a mounting ring is fixed to the upper portion of the peripheral side of the cooling shell, mounting screws are fixed to the top end of the mounting ring in an annular array mode and inserted into the sealing cover in a penetrating mode, fastening nuts are connected to the peripheral sides of the mounting screws at the top end of the sealing cover in a threaded mode, and the oil outlet cavity is fixed to the center of the section of the sealing cover. An oil inlet pipe vertically penetrates through and fixedly communicates with the center in the oil outlet cavity, and the bottom end of the oil inlet pipe fixedly communicates with an oil return cavity. By arranging the cooling shell, the sealing cover and the oil outlet cavity, the problems that when the oil cooler is maintained in the running process of the tubular oil cooler, operation is not convenient enough, the oil cooling path is short, and the cooling effect is limited are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to oil coolers, and in particular relates to a tube-type oil cooler which is easy to maintain. Background Art

[0002] Tubular oil coolers are heat exchange devices used to cool oil media. They are widely used in various types of mechanical equipment in the industrial field, such as steam turbines, fans, coal mills, water pumps, etc. They use a cooling medium (usually water or other coolants) to exchange heat with the oil to reduce the oil temperature and ensure that the mechanical equipment operates smoothly within the appropriate temperature range. Tubular oil coolers have the characteristics of compact structure and high heat transfer efficiency, but they still have the following disadvantages in actual use:

[0003] During the operation of the tubular oil cooler, it needs to be maintained and cleaned for a long time. During the maintenance, the oil cooler needs to be disassembled. However, the oil cooler is usually welded together, so the operation is not convenient when maintaining the oil cooler.

[0004] During the operation of the tubular oil cooler, the oil is usually transported through two oil chambers. During the oil transportation process, the oil is only transported one way through the pipeline. The oil cooling path is short and the cooling effect is limited. Utility Model Content

[0005] The purpose of the utility model is to provide a tubular oil cooler that is easy to maintain. By providing a cooling shell, a closing cover and an oil outlet cavity, the utility model solves the problems of inconvenient operation when maintaining the oil cooler during operation of the tubular oil cooler, a short cooling path for the oil, and limited cooling effect.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a tubular oil cooler that is easy to maintain, comprising a cooling shell, a closing cover and an oil outlet cavity. A mounting ring is fixed to the upper circumference of the cooling shell, and a mounting screw is fixed to the top end of the mounting ring in an annular array. The mounting screw is inserted through the closing cover, and a fastening nut is threadedly connected to the circumference of the mounting screw at the top end of the closing cover. An oil outlet cavity is fixed to the center of the bottom section of the closing cover, and an oil inlet pipe is fixedly connected to the center of the oil outlet cavity vertically through the center, and the bottom end of the oil inlet pipe is fixedly connected to the return oil cavity. During operation, a position for cooling water flow is provided by the cooling shell, and is provided to the closing cover to close the top end of the cooling shell, and the oil outlet cavity is fixed to its bottom end by the closing cover, and the oil outlet cavity provides a concentration effect of oil, and the oil is transported to the return oil cavity through the oil inlet pipe.

[0008] Furthermore, a mounting plate is fixed to the bottom end of the cooling shell, a cooling water pipe is fixedly connected to the upper part of the peripheral side of the cooling shell, and a drainage pipe is fixedly connected to the lower part of the peripheral side of the cooling shell. When the cooling shell is working, it is installed together with the external support structure through the mounting plate, cooling water is input through the cooling water pipe, and the cooling water is discharged through the drainage pipe.

[0009] Furthermore, fixed handles are symmetrically fixed to the top of the closing cover, two fixing holes are provided between the two fixing handles, and one fixing hole is provided at the inner center of the closing cover. When the closing cover is working, the fixed handles provide a pulling action.

[0010] Furthermore, one side of the oil inlet pipe at the top of the oil outlet cavity is fixedly connected to an oil outlet pipe, and the oil inlet pipe and the oil outlet pipe are respectively fixed in two fixing holes. When the oil outlet cavity is working, the oil in the oil outlet cavity is discharged through the oil outlet pipe.

[0011] Furthermore, a heat-insulating sleeve is fixed to the upper part of the peripheral side of the oil inlet pipe, and the heat-insulating sleeve is arranged in the oil outlet cavity. The top and bottom ends of the heat-insulating sleeve are both fixed in the oil outlet cavity, and the oil inlet pipe passes through the heat-insulating sleeve and the cooled oil inside the oil outlet cavity.

[0012] Furthermore, the outer side of the oil inlet pipe at the top of the return oil chamber is fixedly connected to an oil return pipe in a circular array, the top ends of all the return oil pipes are fixed to the bottom end of the oil outlet chamber, and heat exchange fins are fixed in a circular array on the surrounding sides of the return oil pipes. When the return oil chamber is working, the oil entering it is returned to the oil outlet chamber through the return oil pipe, and the oil is further cooled by the heat exchange fins when flowing through the return oil pipe.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem of inconvenient operation when maintaining the oil cooler during the operation of the tubular oil cooler by providing a cooling shell, a closing cover and an oil outlet chamber. When the cooler needs to be maintained, the fastening nut is first unscrewed, and the closing cover is then pulled by a lifting device. When the closing cover is pulled, the oil outlet chamber and the oil return chamber are drawn out of the cooling shell to carry out corresponding maintenance operations. When the maintenance is completed, the external lifting device is started to descend. When the external lifting device descends, the oil return chamber and the oil outlet chamber enter the cooling shell, and then the mounting screw is inserted into the closing cover. After it is extended, the fastening nut is screwed onto the mounting screw until the fastening nut and the closing cover are pressed tightly. The maintenance is completed, and the maintenance operation is more convenient.

[0015] The utility model solves the problem that the cooling path of the oil is short and the cooling effect is limited during the operation of the tubular oil cooler by arranging the oil outlet cavity. The oil is transported to the oil return cavity through the oil inlet pipe, dispersed to the oil return pipe in the oil return cavity, and then ascended through the oil return pipe and transported to the oil outlet cavity. While the oil passes through the oil return pipe, the cooling water is transported to the cooling shell through the cooling water pipe. After being cooled in the cooling shell, the cooling water is transported to the drain pipe for discharge. The heat exchange efficiency between the oil in the oil return pipe and the cooling water in the cooling shell is accelerated by the heat exchange plate, so that the cooling path of the oil is longer, the cooling efficiency is higher, and the cooling effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A partially cutaway perspective view of a tubular oil cooler for easy maintenance;

[0018] Figure 2 It is a three-dimensional diagram of the cooling shell structure;

[0019] Figure 3 It is a three-dimensional diagram of the closed cover structure;

[0020] Figure 4 It is a three-dimensional diagram of the cross-sectional structure of the oil outlet cavity;

[0021] Figure 5 for Figure 4 A magnified view of the structure in Figure 2.

[0022] Reference numerals:

[0023] 1. Cooling shell; 101. Mounting ring; 102. Mounting screw; 103. Drain pipe; 104. Cooling water pipe; 105. Mounting plate; 2. Closing cover; 201. Fixing hole; 202. Fixing handle; 203. Fastening nut; 3. Oil outlet chamber; 301. Oil inlet pipe; 302. Insulation sleeve; 303. Oil return chamber; 304. Oil outlet pipe; 305. Oil return pipe; 306. Heat exchanger. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific embodiment 1

[0025] See also Figure 1-5 The utility model is a tubular oil cooler that is easy to maintain, comprising a cooling shell 1, a closing cover 2 and an oil outlet cavity 3. A mounting ring 101 is fixed to the upper portion of the peripheral side of the cooling shell 1. When the cooling shell 1 is working, the oil outlet cavity 3 and the oil return cavity 303 are accommodated therein. The cooling shell 1 is mounted together with the closing cover 2 through the mounting ring 101. The top of the mounting ring 101 is fixed with mounting screws 102 in an annular array. The mounting screws 102 are inserted through the closing cover 2. The mounting screws 102 at the top of the closing cover 2 are threadedly connected with a fastening nut 203. The mounting screws 102 are inserted into the closing cover 2 through the mounting screws 102. The oil outlet chamber 3 is fixed at the center of the bottom section of the closing cover 2, and the oil is centrally output through the oil outlet chamber 3. An oil inlet pipe 301 is fixedly connected to the center of the oil outlet chamber 3. The top of the oil inlet pipe 301 is connected to the pipeline for conveying oil. The bottom end of the oil inlet pipe 301 is fixedly connected to the oil return chamber 303. The oil is conveyed to the oil return chamber 303 through the oil inlet pipe 301, and the oil returned through the oil return chamber 303 is conveyed to the oil return pipe 305.

[0026] Specifically, a mounting plate 105 is fixed to the bottom end of the cooling shell 1, a cooling water pipe 103 is fixedly connected to the upper part of the peripheral side of the cooling shell 1, the cooling water pipe 103 is connected to the pipeline of the return cooling water, and a drain pipe 104 is fixedly connected to the lower part of the peripheral side of the cooling shell 1, and water is transported to the cooling shell 1 through the drain pipe 104. When the cooling shell 1 is working, it is installed together with the external support structure through the mounting plate 105. When the drain pipe 104 is working, the cooling water is transported to the cooling shell 1, and after cooling the oil in the return oil pipe 305, it is output to the equipment for cooling the cooling water through the cooling water pipe 103.

[0027] Furthermore, fixed handles 202 are symmetrically fixed to the top of the closing cover 2, and two fixing holes 201 are opened between the two fixing handles 202. One fixing hole 201 is set at the inner center of the closing cover 2. The closing cover 2 provides a pulling, lifting and clamping position through the fixed handles 202. The closing cover 2 fixes the oil outlet pipe 304 and the oil inlet pipe 301 through the fixing hole 201.

[0028] Furthermore, one side of the oil inlet pipe 301 at the top of the oil outlet chamber 3 is fixedly connected to the oil outlet pipe 304, and the oil inlet pipe 301 and the oil outlet pipe 304 are respectively fixed in the two fixed holes 201. When the oil outlet chamber 3 is working, the cooled oil in the oil outlet chamber 3 is discharged to the oil-using equipment through the oil outlet pipe 304.

[0029] The operating process of this embodiment is as follows: during operation, when the cooler needs to be maintained, first unscrew the fastening nut 203, then pull the closing cover 2 through the lifting equipment, and when the closing cover 2 is pulled, the oil outlet chamber 3 and the oil return chamber 303 are pulled out from the cooling shell 1, and corresponding maintenance work is performed. When the maintenance is completed, start the external lifting equipment to descend, and when the external lifting equipment descends, until the oil return chamber 303 and the oil outlet chamber 3 enter the cooling shell 1, then insert the mounting screw 102 into the closing cover 2, and after it is extended, screw the fastening nut 203 onto the mounting screw 102 until the fastening nut 203 and the closing cover 2 are tightened, and the maintenance is completed. Specific embodiment 2

[0030] See also Figure 1 、 2 , 4, 5. On the basis of the specific embodiment 1, a heat insulating sleeve 302 is fixed to the upper part of the peripheral side of the oil inlet pipe 301. The heat insulating sleeve 302 is arranged in the oil outlet chamber 3. The top and bottom ends of the heat insulating sleeve 302 are both fixed in the oil outlet chamber 3. The oil inlet pipe 301 and the oil in the oil outlet chamber 3 are separated by the heat insulating sleeve 302, thereby reducing the heat exchange between the oil inlet pipe 301 and the oil in the oil outlet chamber 3.

[0031] Specifically, the outer side of the oil inlet pipe 301 at the top of the return oil chamber 303 is fixedly connected to the return oil pipe 305 in a circular array, the top ends of all the return oil pipes 305 are fixed to the bottom end of the oil outlet chamber 3, and the surrounding sides of the return oil pipe 305 are fixed with heat exchange fins 306 in a circular array. When the return oil chamber 303 is working, the oil entering the return oil chamber 303 is transported to the oil outlet chamber 3 through the return oil pipe 305, and is cooled by the cooling water passing through the cooling shell 1, and the heat exchange efficiency between the oil in the return oil pipe 305 and the cooling water in the cooling shell 1 is accelerated through the heat exchange fins 306.

[0032] The operating process of this embodiment is as follows: when working, the oil is first transported to the oil return chamber 303 through the oil inlet pipe 301, dispersed to the oil return pipe 305 in the oil return chamber 303, and then ascended through the oil return pipe 305 and transported to the oil outlet chamber 3. While the oil passes through the oil return pipe 305, the cooling water is transported to the cooling shell 1 through the cooling water pipe 103, and after being cooled in the cooling shell 1, it is transported to the drain pipe 104 for discharge. The heat exchange efficiency between the oil in the oil return pipe 305 and the cooling water in the cooling shell 1 is accelerated by the heat exchange plate 306, so that the oil cooling path is longer and the cooling efficiency is higher.

[0033] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0034] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A tubular oil cooler convenient for maintenance, comprising a cooling housing (1), a closing cover (2) and an oil outlet cavity (3), characterized in that: A mounting ring (101) is fixed to the upper portion of the peripheral side of the cooling shell (1), and mounting screws (102) are fixed to the top of the mounting ring (101) in a ring array. The mounting screws (102) are inserted into the closing cover (2), and the peripheral side of the mounting screws (102) at the top of the closing cover (2) is threadedly connected to a fastening nut (203). An oil outlet cavity (3) is fixed to the center of the bottom section of the closing cover (2), and an oil inlet pipe (301) is fixedly connected to the center of the oil outlet cavity (3), and the bottom end of the oil inlet pipe (301) is fixedly connected to the oil return cavity (303).

2. The easy-to-maintain tubular oil cooler according to claim 1, characterized in that: A mounting plate (105) is fixed to the bottom end of the cooling shell (1), a cooling water pipe (104) is fixedly connected to the upper portion of the peripheral side of the cooling shell (1), and a drainage pipe (103) is fixedly connected to the lower portion of the peripheral side of the cooling shell (1).

3. The easy-to-maintain tubular oil cooler according to claim 1, characterized in that: Fixed handles (202) are symmetrically fixed to the top of the closing cover (2), two fixing holes (201) are provided between the two fixing handles (202), and one fixing hole (201) is provided at the center inside the closing cover (2).

4. The easy-to-maintain tubular oil cooler according to claim 3, characterized in that: One side of the oil inlet pipe (301) at the top of the oil outlet cavity (3) is fixedly connected to an oil outlet pipe (304), and the oil inlet pipe (301) and the oil outlet pipe (304) are respectively passed through and fixed in two fixing holes (201).

5. The easy-to-maintain tubular oil cooler according to claim 1, characterized in that: A heat-insulating sleeve (302) is fixed to the upper portion of the peripheral side of the oil inlet pipe (301). The heat-insulating sleeve (302) is arranged in the oil outlet cavity (3), and the top and bottom ends of the heat-insulating sleeve are both fixed in the oil outlet cavity (3).

6. The easy-to-maintain tubular oil cooler according to claim 1, characterized in that: The outer side of the oil inlet pipe (301) at the top of the oil return chamber (303) is fixedly connected to the oil return pipe (305) in a circular array. The top ends of all the oil return pipes (305) are fixed to the bottom end of the oil outlet chamber (3). Heat exchange fins (306) are fixed to the surrounding sides of the oil return pipes (305) in a circular array.

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