Pipe connecting structure for vacuum oil injection of transformer
By designing the transformer vacuum oil injection joint structure, the problem of low vacuum oil injection efficiency of large-scale transformers in the prior art is solved, and multiple transformers are simultaneously vacuum oil injection, which improves efficiency and saves costs.
Patent Information
- Application Number
- CN202421752114.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-23
AI Technical Summary
When existing large transformers are vacuum-filled, the single operation time is too long, so it is impossible to efficiently vacuum-filled multiple transformers at the same time.
A transformer vacuum oil injection joint structure is designed. The vacuum unit is connected to the vacuum ports of multiple transformers through two pipe fittings, and the oil tank oil supply pipe is connected to the bottom oil injection valves of multiple transformers. The main pipe, branch pipe, valve and hose connection flange is used to realize the simultaneous vacuum oil injection of multiple transformers.
The vacuum oil injection is achieved while multiple transformers, which improves the efficiency of vacuum oil injection, reduces production cycles, and saves manufacturing costs.
Smart Images
Figure CN222939732U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an oil-immersed power transformer, specifically to a connecting pipe structure for vacuum oil injection of a transformer, which is applicable to the operation of vacuum oil injection of multiple products of large transformers at the same time.
Background Art
[0002] When the original large transformer is vacuum oil-injected, a vacuum unit and a hose are directly connected to the flange on the tank cover for vacuum pumping, and the bottom is connected to a ball valve through an oil depot oil injection pipe for oil injection. Since the single-time vacuum oil injection time of a large transformer is too long, the vacuum oil injection operation can only be carried out for one unit at a time, and the efficiency is too low when facing the vacuum oil injection of multiple transformers.
Content of the Utility Model
[0003] The purpose of the utility model is to solve the problems in the prior art, and propose a connecting pipe structure for vacuum oil injection of a transformer, which can make the vacuum oil injection of multiple transformers more convenient and improve the efficiency of vacuum oil injection of multiple transformers.
[0004] To achieve the above purpose, the utility model proposes a connecting pipe structure for vacuum oil injection of a transformer, which includes two connecting pipe parts. One connecting pipe part is used to connect the vacuum unit with the vacuum pumping ports of multiple transformers, and the other connecting pipe part is used to connect the oil depot oil supply pipe with the oil injection valves at the bottoms of multiple transformers. The connecting pipe part includes a main connecting pipe, several branch connecting pipes, several valves and several hose connecting flanges. Branch connecting pipes and main interfaces communicating with the main connecting pipe are provided on the main connecting pipe. One end of the valve communicates with the corresponding branch connecting pipe, and the other end is provided with a hose connecting flange.
[0005] Preferably, connecting hoses are provided on all the hose connecting flanges.
[0006] Preferably, the connecting hose is communicated with the vacuum pumping port of the transformer through a vacuum pressure gauge.
[0007] Preferably, one end of the vacuum pressure gauge is provided with a flange joint connected to the connecting hose, and the other end is provided with a screw joint connected to the vacuum pumping port.
[0008] Preferably, an anti-disengagement protrusion is provided on the main interface.
[0009] Advantages of the present utility model: By connecting one joint pipe to the vacuum ports of a vacuum unit and multiple transformers, and the other joint pipe to the oil supply valves at the bottoms of multiple transformers through an oil depot supply pipe, the joint pipe includes a main joint pipe, several branch joint pipes, several valves, and several hose connection flanges. The main joint pipe is provided with branch joint pipes and a main interface communicating therewith. One end of the valve is connected to the corresponding branch joint pipe, and the other end is provided with a hose connection flange. Compared with the prior art, it can make the vacuum oil injection of multiple transformers more convenient and improve the efficiency of vacuum oil injection of multiple transformers.
[0010] The features and advantages of the present utility model will be described in detail through embodiments in conjunction with the accompanying drawings.
Description of the Drawings
[0011] Figure 1 is a schematic structural diagram of a joint pipe structure for vacuum oil injection of a transformer according to the present utility model;
[0012] Figure 2 is a schematic structural diagram of the joint pipe.
[0013] In the figure: 1 - joint pipe, 2 - vacuum pressure gauge, 3 - flange joint, 4 - screw joint, 11 - main joint pipe, 12 - branch joint pipe, 13 - valve, 14 - hose connection flange, 15 - main interface, 16 - connecting hose, 17 - anti - detachment protrusion.
Detailed Embodiment
[0014] Refer to Figure 1 、 2 A joint pipe structure for vacuum oil injection of a transformer according to the present utility model includes two joint pipes 1. One joint pipe 1 is used to connect the vacuum unit to the vacuum ports of multiple transformers, and the other joint pipe 1 is used to connect the oil depot supply pipe to the oil injection valves at the bottoms of multiple transformers. The joint pipe 1 includes a main joint pipe 11, several branch joint pipes 12, several valves 13, and several hose connection flanges 14. The main joint pipe 11 is provided with branch joint pipes 12 and a main interface 15 communicating therewith. One end of the valve 13 is connected to the corresponding branch joint pipe 12, and the other end is provided with a hose connection flange 14.
[0015] Connecting hoses 16 are provided on the hose connection flanges 14.
[0016] The connecting hose 16 is connected to the vacuum port of the transformer through a vacuum pressure gauge 2.
[0017] One end of the vacuum pressure gauge 2 is provided with a flange joint 3 connected to the connecting hose 16, and the other end is provided with a screw joint 4 connected to the vacuum port.
[0018] An anti - detachment protrusion 17 is provided on the main interface 15.
[0019] Working process of the utility model:
[0020] During the working process of a pipe connection structure for vacuum oil injection of a transformer in the utility model, a pipe connection part 1 is used to connect the vacuum unit with the vacuum extraction ports of multiple transformers. The connecting hose 16 of the pipe connection part 1 is connected to the top vacuum extraction port of the corresponding transformer through a vacuum pressure gauge 2. Another pipe connection part 1 is used to connect the oil supply pipe of the oil depot with the oil injection valves at the bottoms of multiple transformers. The connecting hose 16 of the pipe connection part 1 is connected to the oil injection valve at the bottom of the corresponding transformer. Vacuum oil injection can be carried out on multiple transformers simultaneously. And according to the vacuum degrees and oil injection times of different transformers, control can be respectively carried out through the valves (13) on the corresponding pipe connection parts 1 and the corresponding oil injection valves. The working efficiency is improved, the product production cycle is reduced, and the manufacturing cost is also saved to a great extent.
[0021] The above embodiments are illustrative of the utility model, not restrictive thereof. Any scheme obtained by simply transforming the utility model belongs to the protection scope of the utility model.
Claims
1. A connecting pipe structure for vacuum oil injection of transformer, characterized in that: The invention comprises two pipe couplings (1), one pipe coupling (1) being used for connecting a vacuum unit with vacuum extraction ports of a plurality of transformers, and the other pipe coupling (1) being used for connecting an oil depot oil supply pipe with oil filling valves at the bottoms of a plurality of transformers. The pipe coupling (1) comprises a main pipe coupling (11), a plurality of branch pipe couplings (12), a plurality of valves (13) and a plurality of hose connection flanges (14). The main pipe coupling (11) is provided with branch pipe couplings (12) and a main interface (15) connected thereto. One end of the valve (13) is connected to a corresponding branch pipe coupling (12), and the other end is provided with a hose connection flange (14).
2. A transformer vacuum oil injection connecting pipe structure as claimed in claim 1, characterized in that: The hose connection flanges (14) are each provided with a connection hose (16).
3. A transformer vacuum oil injection connecting pipe structure as claimed in claim 2, characterized in that: The connecting hose (16) is connected to the vacuum port of the transformer via a vacuum pressure gauge (2).
4. A transformer vacuum oil injection connecting pipe structure as claimed in claim 3, characterized in that: One end of the vacuum pressure gauge (2) is provided with a flange joint (3) connected to a connecting hose (16), and the other end is provided with a screw joint (4) connected to a vacuum port.
5. A transformer vacuum oil injection connecting pipe structure according to any one of claims 1 to 4, characterized in that: The main interface (15) is provided with an anti-drop protrusion (17).