Cooling pipeline and heat exchanger integrated structure of water-cooled transformer

Abstract

The invention discloses a water-cooled transformer cooling pipeline and heat exchanger integrated structure which comprises a water-cooled transformer, a heat exchanger and a plurality of cooling pipelines, the cooling pipelines are all installed on the water-cooled transformer, main pipes are vertically arranged on the two sides of the heat exchanger, and a plurality of circulating pipes are installed on one side face of each main pipe. The ends, away from the main pipe, of the circulating pipes are all provided with first connecting cylinders, the first connecting cylinders are all arranged on the cooling pipeline in a sleeving mode, and U-shaped frames which press the circulating pipes inwards and fix the heat exchanger are arranged outside the multiple circulating pipes. The structure is simple, the main pipe is arranged between the cooling pipeline and the heat exchanger, one end of the main pipe is connected with the cooling pipeline through the first connecting cylinder, the other end of the main pipe is connected with the heat exchanger through the second connecting cylinder, the main pipe is positioned through the U-shaped frame, and after the U-shaped frame is detached, the main pipe can be directly taken down outwards; therefore, the cooling pipeline and the heat exchanger can be separated, and maintenance operation of the cooling pipeline and the heat exchanger is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of water-cooled transformers, and particularly to an integrated structure of a cooling pipeline and a heat exchanger for a water-cooled transformer. Background Art

[0002] A water-cooled transformer is a transformer that uses water or other liquids as a cooling medium. The heat generated inside the transformer is carried away through liquid circulation, thereby ensuring that the transformer operates within a safe temperature range. Water-cooled transformers are usually used in high-power and high-load applications, such as power systems, industrial equipment, and large data centers.

[0003] Currently, in order to ensure the heat dissipation effect of the water-cooled transformer, cooling pipes and heat exchangers are installed on the water-cooled transformer. However, the installation connection between the current cooling pipes and the heat exchanger is relatively complex. When connecting through a connecting flange, a large number of bolts and nuts are used to integrally set the water-cooled transformer and the heat exchanger. Once the heat exchanger needs to be replaced or the inside of the cooling pipe needs to be cleaned, the disassembly of the two is rather troublesome, thus affecting the overall maintenance efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an integrated structure of a cooling pipeline and a heat exchanger for a water-cooled transformer, in which the cooling pipeline and the heat exchanger can be quickly disassembled and assembled, facilitating their cleaning and replacement, so as to solve the problems raised in the above background art.

[0005] The present invention is achieved through the following technical solutions: An integrated structure of a cooling pipeline and a heat exchanger for a water-cooled transformer, comprising a water-cooled transformer, a heat exchanger, and multiple cooling pipes. The cooling pipes are all installed on the water-cooled transformer, and both ends of the cooling pipes extend to the outside. The middle parts of the cooling pipes are all arranged inside the water-cooled transformer and are all in contact with the internal insulating oil. The heat exchanger is arranged on one side of the water-cooled transformer. Main pipes are vertically arranged on both sides of the heat exchanger. Multiple circulating pipes are installed on one side surface of each main pipe. The ends of the circulating pipes far away from the main pipes are all installed with first connection cylinders, and the first connection cylinders are all sleeved on the cooling pipes. A U-shaped frame is arranged outside the multiple circulating pipes to press the circulating pipes inward and fix the heat exchanger.

[0006] As a preferred technical solution, a pump body is installed on one of the main pipes. The liquid inlet end of the pump body is communicated with the main pipe, and a liquid outlet pipe is installed on the liquid outlet end of the pump body. An inlet pipe is installed on the other main pipe, and second connection cylinders are installed on both the inlet pipe and the liquid outlet pipe. The second connection cylinders are respectively sleeved on the liquid inlet end and the liquid outlet end of the heat exchanger.

[0007] As a preferred technical solution, multiple positioning columns are installed on both sides of the heat exchanger. The other ends of the positioning columns are all sleeved with positioning cylinders, and connecting rods are installed between the positioning cylinders and the main pipes.

[0008] As a preferred technical solution, positioning grooves are provided on the outer sides of the circulation pipes, the positioning grooves are vertically opposite to each other, both sides of the U-shaped frame are inserted into the positioning grooves, screw holes are provided on both sides of the U-shaped frame, and hand-tightening bolts are threadedly connected in the screw holes, and the rod portion of the hand-tightening bolt is in contact with the lowermost circulation pipe.

[0009] As a preferred technical solution, rubber layers are installed on the inner circumferential surfaces of the first connecting cylinder and the second connecting cylinder, and the rubber layers are respectively in contact with the outer wall surfaces of the cooling pipe, the liquid inlet end and the liquid outlet end of the heat exchanger.

[0010] As a preferred technical solution, the heat exchanger and the water-cooled transformer are horizontally opposite to each other, and there is a gap between them.

[0011] The beneficial effects of the present invention are as follows: The structure of the present invention is simple. A main pipe is provided between the cooling pipe and the heat exchanger. One end of the main pipe is connected to the cooling pipe through the first connecting cylinder, and the other end of the main pipe is connected to the heat exchanger through the second connecting cylinder to realize the integrated setting of the water-cooled transformer and the heat exchanger. The main pipe itself is positioned by the U-shaped frame. After the U-shaped frame is disassembled, the main pipe can be directly removed outward to complete the separation between the cooling pipe and the heat exchanger, which facilitates the maintenance operation on it. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 is a bottom view of the present invention;

[0015] Figure 3 is a schematic diagram of the structure of the present invention after removing any first connecting cylinder;

[0016] Figure 4 is a schematic diagram of the structure of the present invention after disassembling the U-shaped frame.

[0017] Among them, 1, water-cooled transformer; 2, heat exchanger; 3, cooling pipe; 4, first connecting cylinder; 5, circulation pipe; 6, main pipe; 7, pump body; 8, second connecting cylinder; 9, liquid inlet end; 10, U-shaped frame; 11, hand-tightening bolt; 12, positioning cylinder; 13, positioning column; 14, liquid outlet end; 15, positioning groove. DETAILED DESCRIPTION OF THE INVENTION

[0018] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0019] All features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any way.

[0020] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically recited, can be replaced by other equivalent or alternative features with similar purposes. That is, unless specifically recited, each feature is only an example of a series of equivalent or similar features.

[0021] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, an integrated structure of a water-cooled transformer cooling pipeline and a heat exchanger of the present invention includes a water-cooled transformer 1, a heat exchanger 2, and a plurality of cooling pipelines 3. The cooling pipelines 3 are all installed on the water-cooled transformer 1. Both ends of the cooling pipelines 3 extend to the outside. The middle parts of the cooling pipelines 3 are all arranged inside the water-cooled transformer 1 and are all in contact with the internal insulating oil. The heat exchanger 2 is arranged on one side of the water-cooled transformer 1. Main pipes 6 are vertically arranged on both sides of the heat exchanger 2. A plurality of circulating pipes 5 are installed on one side surface of each main pipe 6. One end of each circulating pipe 5 far from the main pipe 6 is installed with a first connection cylinder 4. The first connection cylinders 4 are all sleeved on the cooling pipelines 3. An external U-shaped frame 10 is provided for pressing the circulating pipes 5 inward and fixing the heat exchanger 2.

[0022] Among them, the heat exchanger is an air cooler. After the cooling medium enters the interior of the heat exchanger, the heat carried by the cooling medium can be quickly removed by the wind energy generated by the fan, and the wind will also blow on the surface of the water-cooled transformer, so as to cool the water-cooled transformer.

[0023] In this embodiment, a pump body 7 is installed on one of the main pipes 6. The liquid inlet of the pump body 7 is communicated with the main pipe 6. An outlet pipe is installed on the liquid outlet of the pump body 7. An inlet pipe is installed on the other main pipe 6. Second connection cylinders 8 are installed on both the inlet pipe and the outlet pipe. The second connection cylinders 8 are respectively sleeved on the inlet end 9 and the outlet end 14 of the heat exchanger 2.

[0024] Among them, the cooling pipe, circulating pipe, main pipe and heat exchanger are filled with cooling medium, and the cooling medium can circulate in the cooling pipe, circulating pipe, main pipe and heat exchanger through the pump body, and the heat inside the water-cooled transformer can be quickly taken away by the cooling medium.

[0025] In this embodiment, a plurality of positioning columns 13 are installed on both sides of the heat exchanger 2, and a positioning cylinder 12 is sleeved on the other end of each positioning column 13, and a connecting rod is installed between the positioning cylinder 12 and the main pipe 6;

[0026] In the process of the main pipes approaching, the positioning cylinder can be sleeved on the positioning column, and the heat exchanger can be positioned by the positioning column and the positioning cylinder, thereby increasing the contact area with the heat exchanger and better fixing it on one side of the water-cooled transformer.

[0027] In this embodiment, positioning grooves 15 are provided on the outer side surfaces of the circulation pipe 5, and the positioning grooves 15 are arranged vertically opposite to each other. Both sides of the U-shaped frame 10 are inserted into the positioning grooves 15. Both sides of the U-shaped frame 10 are provided with screw holes, and hand bolts 11 are threadedly connected in the screw holes. The rod of the hand bolt 11 is arranged in contact with the bottom circulation pipe 5.

[0028] In this embodiment, rubber layers are installed on the inner circumferences of the first connecting tube 4 and the second connecting tube 8, and the rubber layers are respectively disposed in contact with the outer wall surfaces of the cooling pipe 3 and the liquid inlet end 9 and the liquid outlet end 14 of the heat exchanger 2.

[0029] In this embodiment, the heat exchanger 2 and the water-cooled transformer 1 are arranged horizontally opposite to each other with a gap therebetween, so that the wind energy generated by the heat exchanger can blow on the water-cooled transformer and be discharged outward along the gap to ensure the convection effect.

[0030] During installation, the heat exchanger is placed on one side of the water-cooled transformer, and the main pipe is prepared so that the first connecting tube on the main pipe is directly opposite to the cooling pipe, and the second connecting tube is opposite to the liquid inlet and outlet of the heat exchanger. After the main pipe is moved inward, the first connecting tube can be sleeved on both ends of the cooling pipe, and the second connecting tube can be sleeved on the liquid inlet and outlet to complete the connection between the cooling pipe and the heat exchanger.

[0031] After the sleeve connection is completed, the U-shaped frame is inserted into the positioning groove from top to bottom, and the circulation pipe can be pressed inward by the U-shaped frame, so that the first connecting tube and the second connecting tube can always be tightly in contact with the cooling pipe or the liquid inlet and outlet ends, and the U-shaped frame can be positioned by hand-tightening the bolts to avoid the up and down movement of the U-shaped frame;

[0032] On the contrary, when disassembling, the U-shaped frame can be lifted up by simply unscrewing the hand-tightening bolts. After losing the obstruction of the U-shaped frame, the first connecting tube and the second connecting tube can be directly removed outward to facilitate the replacement of the heat exchanger and the cleaning of the inner wall of the cooling pipe.

[0033] As described above, it is only the specific implementation manners of the present invention. However, the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be conceived without creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. An integrated structure of a cooling pipeline and a heat exchanger for a water-cooled transformer, characterized in that: The invention comprises a water-cooled transformer (1), a heat exchanger (2) and a plurality of cooling pipes (3), wherein the cooling pipes (3) are all installed on the water-cooled transformer (1), both ends of the cooling pipes (3) extend to the outside, the middle of the cooling pipes (3) are all arranged inside the water-cooled transformer (1) and are all arranged in contact with the insulating oil inside, the heat exchanger (2) is arranged on one side of the water-cooled transformer (1), main pipes (6) are vertically arranged on both sides of the heat exchanger (2), a plurality of circulation pipes (5) are installed on one side of the main pipe (6), a first connecting tube (4) is installed at one end of the circulation pipe (5) away from the main pipe (6), the first connecting tube (4) is sleeved on the cooling pipe (3), and a U-shaped frame (10) is arranged outside the plurality of circulation pipes (5) to press the circulation pipes (5) inwardly and fix the heat exchanger (2).

2. The integrated structure of the water-cooled transformer cooling pipeline and the heat exchanger according to claim 1, characterized in that: A pump body (7) is installed on the main pipe (6) on one side, the liquid inlet of the pump body (7) is connected to the main pipe (6), and a liquid outlet pipe is installed on the liquid outlet of the pump body (7). A liquid inlet pipe is installed on the main pipe (6) on the other side, and a second connecting tube (8) is installed on both the liquid inlet pipe and the liquid outlet pipe. The second connecting tube (8) is respectively sleeved on the liquid inlet end (9) and the liquid outlet end (14) of the heat exchanger (2).

3. The integrated structure of the cooling pipeline and heat exchanger of the water-cooled transformer according to claim 1, characterized in that: A plurality of positioning columns (13) are installed on both sides of the heat exchanger (2), a positioning cylinder (12) is sleeved on the other end of each positioning column (13), and a connecting rod is installed between the positioning cylinder (12) and the main pipe (6).

4. The integrated structure of the cooling pipeline and heat exchanger of the water-cooled transformer according to claim 1, wherein: Positioning grooves (15) are provided on the outer sides of the circulation pipe (5), and the positioning grooves (15) are arranged vertically opposite to each other. Both sides of the U-shaped frame (10) are inserted into the positioning grooves (15). Both sides of the U-shaped frame (10) are provided with screw holes, and hand bolts (11) are threadedly connected in the screw holes. The rod of the hand bolt (11) is arranged in contact with the bottom circulation pipe (5).

5. The integrated structure of the water-cooled transformer cooling pipeline and the heat exchanger according to claim 1, wherein: Rubber layers are installed on the inner ring surfaces of the first connecting tube (4) and the second connecting tube (8), and the rubber layers are respectively arranged to abut against the outer wall surfaces of the cooling pipe (3) and the liquid inlet end (9) and the liquid outlet end (14) of the heat exchanger (2).

6. The integrated structure of the cooling pipeline and heat exchanger of the water-cooled transformer according to claim 1, wherein: The heat exchanger (2) and the water-cooled transformer (1) are arranged horizontally opposite to each other, with a gap between them.

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