Novel internal circulation fan-shaped sectioning type oil cooler

Abstract

The utility model discloses a novel internal circulation fan-shaped sectioning type oil cooler which comprises an oil groove bottom plate, the oil groove bottom plate is fixedly connected with the bottom of an oil groove, and a first fan-shaped cooling pipe and a second fan-shaped cooling pipe are arranged at the upper end of the oil groove bottom plate. The water inlet ends of the first cooling pipe and the second cooling pipe are connected to the lower end of the oil tank bottom plate through a water inlet device, and the water drainage ends of the first cooling pipe and the second cooling pipe are connected to the lower end of the oil tank bottom plate through a water drainage device. The oil groove bottom plate is reasonable in structure, convenient to install and good in sealing effect, manufacturing materials are reduced, the effective heat dissipation length of the cooling pipe is increased, the oil groove bottom plate is provided with few holes, and the risk of water leakage of a cooler in the oil groove is reduced. The water inlet and outlet pipeline outside the oil groove bottom plate can achieve quick connection, flange bolt hole dislocation and pipeline stress do not exist, the pipeline installation cost is saved, the service life of equipment is prolonged, the operation and maintenance cost is reduced, and economic benefits are improved.

Description

Technical Field

[0001] The utility model relates to an internal circulation oil cooler, in particular to a novel internal circulation fan-shaped petal type oil cooler. Background Art

[0002] At present, the heat generated by the oil temperature of various oil tanks in the operation of large-scale hydro-turbine generator sets, steam turbine generator sets, is mainly cooled after heat exchange through the oil cooler, and then participates in the circulation operation of the bearing oil system. In the prior art, there are many sealing surfaces in the oil tank, which is easy to leak due to the loosening of the bolts due to the vibration of the unit during operation, causing the oil in the oil tank to emulsify and the bearing temperature to rise; the external connection of the oil tank bottom plate is a Y-type pipe connection. The installation of the Y-type pipe requires more than three people to operate. When connecting, it is easy for the flange bolt holes to be misaligned, or the connected flange bolts are subjected to strong shear force. The long-term bolts are easy to break and produce water spray, reducing the flow of water entering the oil cooler, resulting in dangerous phenomena such as excessive bearing temperature, affecting the safe and stable operation of the equipment. The Y-type pipe is easy to be plastically deformed by force during operation, and it is difficult to recover after disassembly. Summary of the invention

[0003] The utility model aims to provide a novel internal circulation fan-shaped petal type oil cooler.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented according to the following technical scheme:

[0005] The utility model comprises an oil tank bottom plate, which is fixedly connected to the bottom of the oil tank, and a fan-shaped first cooling pipe and a second cooling pipe are arranged at the upper end of the oil tank bottom plate, and the water inlet ends of the first cooling pipe and the second cooling pipe are connected to the lower end of the oil tank bottom plate through a water inlet device, and the drainage ends of the first cooling pipe and the second cooling pipe are connected to the lower end of the oil tank bottom plate through a drainage device.

[0006] Furthermore, the water inlet device includes a cooling pipe connecting plate, a water tank cover, a T-shaped water inlet pipe and an L-shaped water inlet pipe. There are two cooling pipe connecting plates, and the two cooling pipe connecting plates are respectively communicated with and fixedly connected to one end of the first cooling pipe and the second cooling pipe. There are two water tank covers, and the two water tank covers are respectively sealed and fixedly connected to the two cooling pipe connecting plates. The two ends of the T-shaped water inlet pipe are respectively communicated with the middle parts of the two water tank covers and fixedly connected. The third end of the T-shaped water inlet pipe passes through the oil tank bottom plate and is communicated with one end of the L-shaped water inlet pipe.

[0007] Furthermore, the drainage device includes a cooling pipe connecting plate, a water tank cover, a T-shaped drain pipe, and an L-shaped drain pipe. There are two cooling pipe connecting plates, and the two cooling pipe connecting plates are respectively communicated with and fixedly connected to one end of the first cooling pipe and the second cooling pipe. There are two water tank covers, and the two water tank covers are respectively sealed and fixedly connected to the two cooling pipe connecting plates. The two ends of the T-shaped drain pipe are respectively communicated with and fixedly connected to the middle parts of the two water tank covers, and the third end of the T-shaped drain pipe passes through the oil tank bottom plate and is communicated with one end of the L-shaped drain pipe.

[0008] The beneficial effects of the utility model are:

[0009] The utility model is a new type of internal circulation fan-shaped petal oil cooler. Compared with the prior art, the utility model has a reasonable structure, convenient installation, good sealing effect, reduced manufacturing materials, increased effective heat dissipation length of the cooling pipe, fewer holes in the oil tank bottom plate, and reduced the risk of water leakage in the oil tank cooler. The inlet and outlet pipes outside the oil tank bottom plate can be quickly connected, there is no flange bolt hole misalignment, and the pipes are stressed, saving pipe installation costs, extending the service life of the equipment, reducing operation and maintenance costs, and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of one side of the utility model;

[0011] Figure 2 It is a structural schematic diagram of another side of the utility model.

[0012] In the figure: oil tank bottom plate 1, cooling pipe connecting plate 2, first cooling pipe 3, water tank cover plate 4, T-shaped water inlet pipe 5, L-shaped water inlet pipe 6, T-shaped drain pipe 7, L-shaped drain pipe 8, second cooling pipe 9. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0014] like Figure 1 and 2 As shown: the utility model includes an oil tank bottom plate 1, which is fixedly connected to the bottom of the oil tank, and a fan-shaped first cooling pipe 3 and a second cooling pipe 9 are arranged at the upper end of the oil tank bottom plate 1, and the water inlet ends of the first cooling pipe 3 and the second cooling pipe 9 are connected to the lower end of the oil tank bottom plate 1 through a water inlet device, and the drainage ends of the first cooling pipe 3 and the second cooling pipe 9 are connected to the lower end of the oil tank bottom plate 1 through a drainage device.

[0015] Furthermore, the water inlet device includes a cooling pipe connecting plate 2, a water tank cover plate 4, a T-shaped water inlet pipe 5 and an L-shaped water inlet pipe 6. There are two cooling pipe connecting plates 2, and the two cooling pipe connecting plates 2 are respectively communicated with and fixedly connected to one end of the first cooling pipe 3 and the second cooling pipe 9. There are two water tank covers 4, and the two water tank covers 4 are respectively sealed and fixedly connected to the two cooling pipe connecting plates 2. The two ends of the T-shaped water inlet pipe 5 are respectively communicated with and fixedly connected to the middle parts of the two water tank covers 4, and the third end of the T-shaped water inlet pipe 5 passes through the oil tank bottom plate 1 and is communicated with one end of the L-shaped water inlet pipe 6.

[0016] Furthermore, the drainage device includes a cooling pipe connecting plate 2, a water tank cover plate 4, a T-shaped drain pipe 7, and an L-shaped drain pipe 8. There are two cooling pipe connecting plates 2, and the two cooling pipe connecting plates 2 are respectively communicated with and fixedly connected to one end of the first cooling pipe 3 and the second cooling pipe 9. There are two water tank covers 4, and the two water tank covers 4 are respectively sealed and fixedly connected to the two cooling pipe connecting plates 2. The two ends of the T-shaped drain pipe 7 are respectively communicated with the middle parts of the two water tank covers 4 and fixedly connected. The third end of the T-shaped drain pipe 7 passes through the oil tank bottom plate 1 and is communicated with one end of the L-shaped drain pipe 8.

[0017] The working principle of the utility model is as follows:

[0018] RJ seal is used between the cooling pipe connecting plate 2 and the water tank cover plate 4 to prevent the hidden danger of gasket displacement due to vibration of the running unit; the two-flap fan-shaped first cooling pipe 3 and the second cooling pipe 9 are connected by a T-shaped water inlet pipe 5 and a T-shaped drain pipe 7, so that the first cooling pipe 3 and the second cooling pipe 9 form a closed loop structure, increase the effective heat dissipation length of the cooling pipe, take away more heat from the oil tank, and improve the heat dissipation effect of the oil.

[0019] Embodiment: According to the oil tank, the effective length of the first cooling pipe 3 and the second cooling pipe 9 is calculated and designed. 1. A sealing groove of Φ8 is opened on the cooling pipe connecting plate 2. 2. The first cooling pipe 3 or the second cooling pipe 9 is assembled with the cooling pipe connecting plate 2. 3. The two-flap fan-shaped first cooling pipe 3 and the second cooling pipe 9 are assembled. 4. The water tank cover plate 4 is processed. 5. The processed water tank cover plate 4 is assembled with the cooling pipe connecting plate 2. 6. Two through holes are opened symmetrically on the oil tank bottom plate 1 and the flanges are welded. , 7. Measure the distance between the two water tank covers 4. 8. Make a T-shaped water inlet pipe 5 and a T-shaped drain pipe 7 according to the measured distance. The two ends of the T-shaped water inlet pipe 5 and the T-shaped drain pipe 7 are welded to the water tank cover 4 respectively, and the third end is welded with a flange. The flanges of the T-shaped water inlet pipe 5 and the T-shaped drain pipe 7 are in the same position as the flange of the oil tank bottom plate 1. 9. Make an L-shaped water inlet pipe 6 and a T-shaped drain pipe 7, and weld flanges at both ends. 10. Connect the L-shaped water inlet pipe 6 and the L-shaped drain pipe 8 to the flange on the oil tank bottom plate 1.

[0020] The above shows and describes the basic principle and main features of the utility model and the advantages of the invention. 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 invention, 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 novel internal circulation fan-shaped split-flap oil cooler, comprising an oil tank bottom plate (1), wherein the oil tank bottom plate (1) is fixedly connected to the bottom of the oil tank, and is characterized in that: A fan-shaped first cooling pipe (3) and a second cooling pipe (9) are arranged at the upper end of the oil tank bottom plate (1); the water inlet ends of the first cooling pipe (3) and the second cooling pipe (9) are connected to the lower end of the oil tank bottom plate (1) through a water inlet device; and the water discharge ends of the first cooling pipe (3) and the second cooling pipe (9) are connected to the lower end of the oil tank bottom plate (1) through a water discharge device.

2. The novel internal circulation fan-shaped split-flap oil cooler according to claim 1 is characterized in that: The water inlet device comprises a cooling pipe connecting plate (2), a water tank cover plate (4), a T-shaped water inlet pipe (5) and an L-shaped water inlet pipe (6). There are two cooling pipe connecting plates (2), and the two cooling pipe connecting plates (2) are respectively communicated with and fixedly connected to one end of the first cooling pipe (3) and the second cooling pipe (9). There are two water tank cover plates (4), and the two water tank cover plates (4) are respectively sealed and fixedly connected to the two cooling pipe connecting plates (2). The two ends of the T-shaped water inlet pipe (5) are respectively communicated with and fixedly connected to the middle parts of the two water tank cover plates (4). The third end of the T-shaped water inlet pipe (5) passes through the oil tank bottom plate (1) and is communicated with one end of the L-shaped water inlet pipe (6).

3. The novel internal circulation fan-shaped split-flap oil cooler according to claim 1 is characterized in that: The drainage device comprises a cooling pipe connecting plate (2), a water tank cover plate (4), a T-shaped drainage pipe (7), and an L-shaped drainage pipe (8). There are two cooling pipe connecting plates (2), and the two cooling pipe connecting plates (2) are respectively communicated with and fixedly connected to one end of the first cooling pipe (3) and the second cooling pipe (9). There are two water tank cover plates (4), and the two water tank cover plates (4) are respectively sealed and fixedly connected to the two cooling pipe connecting plates (2). The two ends of the T-shaped drainage pipe (7) are respectively communicated with and fixedly connected to the middle parts of the two water tank cover plates (4). The third end of the T-shaped drainage pipe (7) passes through the oil tank bottom plate (1) and is communicated with one end of the L-shaped drainage pipe (8).

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