CN210429499U

CN210429499U - Cast transformer cooling device for forging

Info

Publication number: CN210429499U
Application number: CN201921863700.8U
Authority: CN
Inventors: 刘元兵; 袭荣怀
Original assignee: Jinan Zhongwei Casting And Forging Steel Ball Co Ltd
Current assignee: Jinan Zhongwei Casting And Forging Steel Ball Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-04-28
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a cooling device of a transformer for casting and forging, which mainly relates to the technical field of the transformer equipment for casting and forging, comprising a transformer, a water tank, an oil pipe, an oil pump, oil and a cooling device, wherein the water tank is provided with a water inlet and a water outlet, the cooling device comprises a fluid inlet and a fluid outlet which are connected with the oil pipe, the fluid inlet and the fluid outlet are respectively connected with a sealing cover, the sealing cover is used for connecting each cooling flow passage, the cooling flow passage adopts an internal thread type variable circulation flow passage and comprises the transformer and the water tank, the transformer is connected with a closed oil pipe which can lead oil in the transformer to circularly flow, the oil pipe is provided with the oil pump, the oil pipe at least has one section which enters the water tank and is connected with the cooling device, the water tank is provided with the water inlet and the water outlet, the cooling device, the sealing cover is used for connecting each cooling flow passage, and the cooling flow passages adopt internal thread type variable circulating flow passages.

Description

Cast transformer cooling device for forging

Technical Field

The utility model mainly relates to a cast and forge transformer equipment technical field, specifically a cast and forge transformer cooling device.

Background

At present, in the metal casting and forging industry, an air-cooled cooler is generally adopted for cooling a transformer in the operation process, namely, high-temperature working oil in the transformer enters the air-cooled cooler for cooling and then returns to the transformer, and the transformer is cooled by circulation. The existing air-cooled cooler has a good effect on a transformer with a common capacity, but for the transformer with a large capacity, a strong cooling measure of additionally arranging a fan is often needed, and the noise generated by the operation of the fan causes environmental pollution.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies and defects in the prior art, the utility model provides a cast and forge transformer cooling device.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a cast transformer cooling device for forging which characterized in that: the cooling device comprises a fluid introducing port and a fluid leading-out port which are connected with the oil pipe, the fluid introducing port and the fluid leading-out port are respectively connected with a sealing cover, the sealing cover is used for connecting each cooling flow passage, and the cooling flow passages adopt internal thread type variable circulation flow passages.

As a further improvement of the utility model, the inner wall thread of the inner thread type variable circulation flow passage is a triangular thread.

As a further improvement of the present invention, the flow direction of the fluid in the cooling flow channel is the same.

Compared with the prior art, the utility model discloses the beneficial effect who has does: the mold water cooling device structure of the threaded type variable circulating flow channel solves the problem of non-uniformity of the temperature of fluids in different flow channels of the circulating water cooling device; the heat exchange area of the inner surface of the flow channel is increased, the turbulence intensity of the fluid in the flow channel is increased, the fluid in the flow channel rotates at the boundary of the flow channel to generate secondary flow different from the radial direction, and the effect of improving the cooling efficiency is achieved; the internal thread type circulating flow passage structure of the mold water cooling device destroys a thermal boundary layer of fluid and enhances the heat transfer effect of the flow passage.

Drawings

The invention will be further described with reference to the accompanying drawings and specific embodiments:

fig. 1 is a schematic structural view of a cooling device for a casting and forging transformer according to the present invention;

in the figure: 1 transformer, 2 water tank, 3 oil pipe, 4 oil pump, 5 water inlet, 6 water outlet, 7 cooling device, 8 fluid inlet, 9 fluid outlet, 10 sealing cover, 11 cooling flow channel.

Detailed Description

In order to make the technical solution and the advantages of the present invention more clear and obvious, the present invention is further described in detail with reference to the following specific embodiments, it should be understood that the specific embodiments described herein are only used for understanding the present invention, and are not used for limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Fig. 1 is the utility model relates to a casting and forging uses transformer cooling device's schematic structure, including transformer 1 and water tank 2, transformer 1 is connected with confined oil pipe 3 that can let the interior fluid circulation of transformer flow, is equipped with oil pump 4 on the oil pipe, and oil pipe has one section entering water tank 2 inside at least to be connected with cooling device 7, and it has water inlet 5 and delivery port 6 to open on the water tank, cooling device 7 is including fluid introducing port 8, the fluid export 9 of leading of connecting oil pipe 3, and fluid introducing port 8, the fluid export 9 is connected with closing cap 10 respectively, and closing cap 10 is used for connecting each cooling runner 11, and cooling runner 11 adopts the variable circulation runner of internal thread formula.

The inner wall thread of the internal thread type variable circulation flow passage is a triangular thread, and the flow directions of the fluid in the cooling flow passage 11 are the same.

Oil is taken out from the transformer to oil pump 4, and inside oil got into water tank 2 along oil pipe 3, through the effect of cooling water and cooling device 7, cooled off oil. The cooled oil returns to the transformer 1 along the oil pipe, so that the transformer is cooled, the internal thread type variable circulating flow channel has the function of ensuring the flowing direction of the fluid, and the circulating flow channel structure mainly has the functions of promoting the fluid to be fully contacted with the inner wall of the mold and improving the turbulent flow performance of the fluid by changing the flowing direction of the fluid. The rotation direction of the boundary thread of the internal thread type flow channel structure is consistent with the flowing direction of the fluid, the heat exchange area of the inner surface of the flow channel is increased, the turbulence intensity of the fluid in the flow channel is increased, and the fluid rotates at the inner boundary of the flow channel to generate secondary flow different from the radial direction to damage a fluid thermal boundary layer; meanwhile, the temperature distribution conditions of the fluids in different flow channels are improved, so that the temperature distribution is more uniform.

The cooling channel is a parallel-arrangement internal thread type variable circulation flow channel structure formed by a sealing cover, the heat exchange area of the inner surface of the flow channel is increased, the heat transfer effect is enhanced, the fluid flow directions of all the flow channels in a single group of water conveying flow channels are the same, and the cooling channel is mainly used for the conditions of large heat load, need of fully absorbing heat, large required flow and small inlet and outlet pressure drop.

The internal thread type variable circulating flow passage is used as the most main heat transfer structure and plays an important role in heat exchange of fluid. The thread of the internal thread type flow channel structure ensures that fluid is in a low obstruction state when flowing, and simultaneously increases the heat exchange area of the inner surface of the flow channel, so that boundary fluid in different flow channels rotates to generate secondary flow different from the radial direction, the secondary flow and the radial flow are fully fused, and the quick heat transfer is realized.

It is noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a cast transformer cooling device for forging which characterized in that: the transformer oil circulation flow cooling device comprises a transformer (1) and a water tank (2), wherein the transformer (1) is connected with a closed oil pipe (3) capable of enabling oil in the transformer to flow in a circulation mode, an oil pump (4) is arranged on the oil pipe, at least one section of the oil pipe enters the water tank (2) to be connected with a cooling device (7), the water tank is provided with a water inlet (5) and a water outlet (6), the cooling device (7) comprises a fluid introducing port (8) and a fluid leading-out port (9) which are connected with the oil pipe (3), the fluid introducing port (8) and the fluid leading-out port (9) are respectively connected with a sealing cover (10), the sealing cover (10) is used for connecting each cooling flow channel (11), and.

2. The cooling apparatus for a cast-forged transformer as claimed in claim 1, wherein: the inner wall thread of the internal thread type variable circulating flow passage is a triangular thread.

3. The cooling apparatus for a cast-forged transformer as claimed in claim 1, wherein: the flow direction of the fluid in the cooling flow channel (11) is the same.