A tee bend structure of an oil collecting pipe of a transformer radiator

Abstract

The application discloses a tee bend structure of an oil collecting pipe of a transformer radiator, which comprises a first connecting pipe and a second connecting pipe. One end of the first connecting pipe is provided with a flange joint, and the other end is closed. One end of the second connecting pipe is connected with the side wall of the first connecting pipe, and the second connecting pipe is perpendicular to the first connecting pipe. An arc chamfer is arranged at the connecting position of the second connecting pipe and the first connecting pipe. A welding port is arranged on the side of the first connecting pipe opposite to the second connecting pipe. Compared with the prior art, the application has good flowability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of transformer radiators, in particular to a tee bend structure of an oil collecting pipe of a transformer radiator. BACKGROUND

[0002] A transformer is a device that uses the principle of electromagnetic induction to change the voltage of alternating current, and its main components are primary coil, secondary coil and core (magnetic core). The main functions are: voltage transformation, current transformation, impedance transformation, isolation and voltage stabilization (magnetic saturation transformer) etc. According to the use, it can be divided into: power transformer and special transformer, including electric furnace transformer, rectifier transformer, power frequency test transformer, voltage regulator, mine transformer, audio transformer, medium frequency transformer, high frequency transformer, impact transformer, instrument transformer and electronic transformer, etc. In the prior art, a radiator is often needed on the transformer for temperature control, and one of the important components of the radiator is the oil collecting pipe. Due to the structural arrangement of the oil collecting pipe in the prior art, the flow of the heat-conducting liquid is easily hindered. In view of this, the present inventors have conducted in-depth research and obtained a tee bend structure of an oil collecting pipe of a transformer radiator. SUMMARY

[0003] The purpose of the present application is to provide a tee bend structure of an oil collecting pipe of a transformer radiator, which has good flowability.

[0004] The above technical purpose of the present application is achieved by the following technical scheme:

[0005] A tee bend structure of an oil collecting pipe of a transformer radiator, comprising an elbow pipe, a first connecting pipe and a second connecting pipe, one end of the first connecting pipe is provided with a flange joint, the other end is closed, one end of the second connecting pipe is connected with the side wall of the first connecting pipe, and the second connecting pipe is perpendicular to the first connecting pipe, an arc chamfer is arranged at the connection between the second connecting pipe and the first connecting pipe, the other end of the second connecting pipe is connected with the elbow pipe, and a welding port is arranged on the side of the first connecting pipe opposite to the second connecting pipe.

[0006] In a preferred embodiment, a flow guide is arranged in the first connecting pipe, the flow guide has a first flow guide surface and a second flow guide surface, the first flow guide surface faces the second connecting pipe, and the second flow guide surface faces the welding port.

[0007] In a preferred embodiment, the first flow guide surface and the second flow guide surface are arranged in an arc shape.

[0008] In a preferred embodiment, a plurality of flow guide strips are arranged on the first flow guide surface and the second flow guide surface, and the plurality of flow guide strips are arranged in parallel.

[0009] In a preferred embodiment, the flow guide strip comprises a fixed part and a flow guide part connected with each other, a plurality of fixed grooves are arranged on the first flow guide surface and the second flow guide surface, and the fixed part of the plurality of flow guide strips are inserted into the fixed grooves one by one.

[0010] In a preferred embodiment, a positioning groove is arranged on an end surface of one end of the flow guide piece, a positioning magnet is arranged on an inner wall of a closed end of the first connecting pipe, and the positioning magnet is adsorbed in the positioning groove.

[0011] In a preferred embodiment, the flow guide part is arranged as a hollow air bag, the fixed part is arranged as a rubber strip, a placing groove communicating with the inside of the flow guide part is arranged in the fixed part, and a sodium bicarbonate containing bag is arranged in the placing groove.

[0012] Compared with the prior art, the oil collecting pipe tee bend structure of the transformer radiator provided by the application effectively improves the flow speed of the heat-conducting liquid by arranging the first connecting pipe and the second connecting pipe, and further improves the smoothness of the heat-conducting liquid when flowing by arranging an arc-shaped chamfer at the connection of the first connecting pipe and the second connecting pipe and arranging an elbow pipe at the top end of the second connecting pipe, which is beneficial to improving the heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structure schematic diagram of the application of the oil collecting pipe tee bend structure of the transformer radiator.

[0014] Figure 2 is a longitudinal sectional structure schematic diagram of the application of the oil collecting pipe tee bend structure of the transformer radiator.

[0015] Figure 3 is a structure schematic diagram of the flow guide piece of the oil collecting pipe tee bend structure of the transformer radiator (first view).

[0016] Figure 4 is a structure schematic diagram of the flow guide piece of the oil collecting pipe tee bend structure of the transformer radiator (second view).

[0017] Figure 5 is Figure 3 is an enlarged structure schematic diagram of part A in the figure.

[0018] Figure 6 is a longitudinal sectional structure schematic diagram of the flow guide strip of the oil collecting pipe tee bend structure of the transformer radiator.

[0019] in the figure

[0020] Elbow pipe 1; first connecting pipe 2; flange joint 3; second connecting pipe 4; arc chamfer 5; flow guide 6; first flow guide surface 7; second flow guide surface 8; fixing groove 9; positioning groove 10; flow guide strip 11; fixing part 12; installation groove 13; sodium bicarbonate containing bag 14; flow guide part 15. DETAILED DESCRIPTION

[0021] The application will be further described in detail below with reference to the drawings.

[0022] The specific embodiment is only an explanation of the application, which is not a limitation of the application, and those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as it is within the scope of the claims of the application, it is protected by the patent law.

[0023] As shown in FIG. 1 to Figure 6 A three-way elbow structure of an oil collecting pipe of a transformer radiator, including an elbow pipe 1, a first connecting pipe 2 and a second connecting pipe 4, one end of the first connecting pipe 2 is provided with a flange joint 3, and the other end is closed, one end of the second connecting pipe 4 is connected with the side wall of the first connecting pipe 2, and the second connecting pipe 4 is perpendicular to the first connecting pipe 2, an arc chamfer 5 is arranged at the connection between the second connecting pipe 4 and the first connecting pipe 2, the other end of the second connecting pipe 4 is connected with the elbow pipe 1, and a welding port is arranged on the side of the first connecting pipe 2 opposite to the second connecting pipe 4, which is used for connecting with a radiator sheet.

[0024] The three-way elbow structure of the oil collecting pipe of the transformer radiator of the embodiment effectively improves the flow speed of the heat-conducting liquid by arranging the first connecting pipe 2 and the second connecting pipe 4, and further improves the smoothness of the flow of the heat-conducting liquid by arranging the arc chamfer 5 at the connection between the first connecting pipe 2 and the second connecting pipe 4 and arranging the elbow pipe 1 at the top end of the second connecting pipe 4, which is beneficial to improving the heat dissipation effect.

[0025] In order to further improve the flow performance, the first connecting pipe 2 is provided with a flow guide 6, the flow guide 6 has a first flow guide surface 7 and a second flow guide surface 8, the first flow guide surface 7 faces the second connecting pipe 4, and the second flow guide surface 8 faces the welding port

[0026] In fact, the flow guide 6 comprises a cylindrical body and a flow guide body connected to the body, the flow guide body is provided with the first flow guide surface 7 and the second flow guide surface 8, the first flow guide surface 7 and the second flow guide surface 8 are oppositely arranged, the volume of the flow guide body gradually increases from one end of the first connecting pipe 2 provided with the flange joint 3 to the closed end thereof, that is, the first flow guide surface 7 and the second flow guide surface 8 gradually approach the inner wall thereof from the direction of the one end of the first connecting pipe 2 provided with the flange joint 3 to the closed end thereof, the first flow guide surface 7 guides the heat-conducting liquid to the second connecting pipe 4, and the second flow guide surface 8 guides the heat-conducting liquid to the welding joint, thereby realizing flow distribution and avoiding stagnation and flow of the heat-conducting liquid at the closed end of the first connecting pipe 2, thereby effectively improving the smoothness of flow.

[0027] Specifically, the first flow guide surface 7 and the second flow guide surface 8 are arranged in an arc shape, which is beneficial to realize better flow guiding effect.

[0028] In order to further improve the flow guiding effect, a plurality of flow guide strips 11 are arranged on the first flow guide surface 7 and the second flow guide surface 8, and the plurality of flow guide strips 11 are arranged in parallel. Through the arrangement of the flow guide strips 11, the direction of flow guiding is more stable, and since the plurality of flow guide strips 11 are arranged in parallel, the heat-conducting liquid is difficult to move in a direction non-parallel to the flow guide strips 11, so that through the arrangement of the flow guide strips 11, the heat-conducting liquid can be accurately guided to the direction it should flow to, thereby effectively improving the flow guiding effect.

[0029] In order to facilitate processing and installation, the flow guide strip 11 comprises a fixed portion 12 and a flow guiding portion 15 connected to each other, a plurality of fixed grooves 9 are arranged on the first flow guide surface 7 and the second flow guide surface 8, and the fixed portion 12 of the plurality of flow guide strips 11 is inserted into the fixed groove 9 one by one. The separate arrangement of the flow guide strip 11 and the flow guide 6 can facilitate production, the flow guide 6 and the flow guide strip 11 can be produced separately and then assembled, and such arrangement can also facilitate subsequent maintenance. After the surface of the flow guide strip 11 becomes rough due to corrosion during long-term use, the flow guiding effect can be restored by replacing the flow guide strip 11. When the flow guide strip 11 is disassembled, the flow guide strip 11 can be pulled out and inserted along a direction parallel to the fixed groove 9, thereby realizing convenient disassembly and assembly of the flow guide strip 11.

[0030] Further, the flow guide part 15 is arranged as a hollow air bag, the fixing part 12 is arranged as a rubber strip, the fixing part 12 is provided with a placing groove 13 communicating with the inside of the flow guide part 15, and the placing groove 13 is provided with a sodium bicarbonate containing bag 14. With the above arrangement, before the flow guide strip 11 is installed, the flow guide part 15 is in a non-inflated state, at this time, the fixing part 12 of the flow guide strip 11 can be easily inserted into the fixing groove 9, after the fixing part 12 is inserted into the fixing groove 9, a syringe can be inserted into the placing groove 13 through one end surface of the fixing part 12, water is injected into the placing groove 13, the water reacts with the sodium bicarbonate to generate carbon dioxide gas, thereby inflating the flow guide part 15, after the water injection is completed, the syringe is pulled out, and due to the sealing effect of the rubber, the carbon dioxide gas in the flow guide part 15 will not overflow through the hole generated by the syringe. The advantages of the above arrangement are: on the one hand, the installation of the strip can be facilitated, and the resistance during the installation of the strip is small; on the other hand, a better flow guiding effect can be achieved, because the flow guide part 15 has a relatively smooth surface after inflation, the resistance generated by the surface is small, and the influence on the flow of the heat conducting liquid is small, thereby effectively improving the flow guiding effect and ensuring the flow speed of the heat conducting liquid; at the same time, the air bag and the rubber strip are relatively inexpensive materials, and after being used for a period of time, they can be replaced to maintain the continuous flow guiding effect and control the cost at a low level.

[0031] In order to facilitate the installation and positioning of the flow guide 6, one end surface of the flow guide 6 is provided with a positioning groove 10, and the inner wall of the closed end of the first connecting pipe 2 is provided with a positioning magnet, which is adsorbed in the positioning groove 10. Through the cooperation of the positioning magnet and the positioning groove 10, the installation of the flow guide 6 is realized.

[0032] The cooperation of the positioning magnet and the positioning groove 10 can realize the convenient installation of the flow guide 6, but the cooperation of the positioning magnet and the positioning groove 10 is not a fixed connection, although it can basically meet the use requirement, the connection strength is not large, from the perspective of ensuring the connection strength, the positioning groove 10 and the positioning magnet can not be used, and a through hole can be arranged at the closed end of the first connecting pipe 2, a screw hole is arranged on the flow guide 6, and the flow guide 6 is fixed and installed through the cooperation of the through hole and the screw hole, thereby effectively ensuring the connection strength.

[0033] The above description of the embodiments is for the purpose of facilitating the understanding and use of the present application by those skilled in the art, and those skilled in the art can easily make various modifications to the embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present application is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present application should be within the scope of protection of the present application.

Claims

1. A structure of a three-way bend of an oil collecting pipe of a transformer radiator, characterized by, The application relates to a bend pipe, a first connecting pipe and a second connecting pipe, one end of the first connecting pipe is provided with a flange joint, the other end is closed, one end of the second connecting pipe is connected with the side wall of the first connecting pipe, the second connecting pipe is perpendicular to the first connecting pipe, an arc chamfer is arranged at the connecting position of the second connecting pipe and the first connecting pipe, the other end of the second connecting pipe is connected with the bend pipe, and a welding port is arranged on the opposite side of the first connecting pipe and the second connecting pipe; a flow guide piece is arranged in the first connecting pipe, the flow guide piece has a first flow guide surface and a second flow guide surface, the first flow guide surface faces the second connecting pipe, and the second flow guide surface faces the welding port; the first flow guide surface and the second flow guide surface are arranged in an arc shape; a plurality of flow guide strips are arranged on the first flow guide surface and the second flow guide surface, and the plurality of flow guide strips are arranged in parallel; the flow guide strip comprises a fixed part and a flow guide part which are connected with each other, a plurality of fixed grooves are arranged on the first flow guide surface and the second flow guide surface, the fixed part of the plurality of flow guide strips is inserted into the fixed grooves one by one, the flow guide part is arranged as a hollow air bag, the fixed part is arranged as a rubber strip, a placing groove which is communicated with the inside of the flow guide part is arranged in the fixed part, a sodium bicarbonate containing bag is arranged in the placing groove, before the flow guide strip is installed, the flow guide part is in an un-inflated state, after the fixed part of the flow guide strip is inserted into the fixed groove, a syringe is inserted into the placing groove through one end surface of the fixed part, water is injected into the placing groove, the water and the sodium bicarbonate react to generate carbon dioxide gas, so that the flow guide part is inflated, and the syringe is pulled out after the water injection is completed.

2. The structure of the three-way bend of the oil collecting pipe of the transformer radiator according to claim 1, characterized in that, One end surface of the flow guide piece is provided with a positioning groove, and an inner wall of the closed end of the first connecting pipe is provided with a positioning magnet which is adsorbed in the positioning groove.

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