Automatic oil compensation device for transformer
By designing the transformer's oil compensation device, the floating adjustment mechanism and oil return mechanism are used to realize the automatic adjustment of the oil level and the reuse of the oil spill, which solves the problem of manual operation of the existing transformers and improves resource utilization and operation convenience.
Patent Information
- Application Number
- CN202421882021.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-05
AI Technical Summary
Existing transformers need to be manually operated when the oil level changes, resulting in troublesome oil release and replenishment processes, and it is difficult to effectively utilize the oil after it overflows.
An automatic oil compensation device for transformer is designed, including a floating adjustment mechanism and an oil return mechanism, which adjusts the oil level through a floating collar and a liquid level tube, automatically replenishes or releases the oil, and reuses the overflowing oil through the oil return mechanism.
It realizes automatic adjustment of the oil level, avoids the hassle of manual operation, ensures that the oil is always within the normal range, and reuses the overflowing oil, improving resource utilization.
Smart Images
Figure CN222952897U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to an automatic transformer oil compensation device. Background Art
[0002] During the operation of an oil-immersed transformer, the temperature of the internal oil will increase under the working load, and the volume of the oil inside the transformer will also change under the influence of temperature. At present, an oil pillow is used to balance the liquid level changes caused by the oil, but the volume of the oil pillow is usually small. When the oil exceeds the maximum liquid level of the oil pillow, it is necessary to manually release the oil to below the maximum liquid level. When the oil is lower than the minimum liquid level of the oil pillow, it is also necessary to manually add oil. Since most of the transformer oil filling ports are located at the highest position of the transformer, the entire oil release and replenishment process is very troublesome. Therefore, a transformer oil automatic compensation device is designed to solve the above problems. Utility Model Content
[0003] In view of the shortcomings of the existing transformer technology, the purpose of the utility model is to provide a transformer oil automatic compensation device, which has the advantages of ensuring that the oil level is automatically within a normal range and reusing the overflowed oil.
[0004] In order to achieve the above-mentioned purpose, a technical solution adopted by the utility model is: a transformer oil automatic compensation device, including a transformer, an oil pillow, a double-channel hose, an adjusting oil tank, a floating adjustment mechanism and an oil return mechanism, the oil pillow is arranged on one side of the top of the transformer and is connected with the internal oil, a floating adjustment mechanism for adjusting the oil level is arranged inside the oil pillow, the adjusting oil tank is arranged on one side of the transformer, the double-channel hose connects the floating adjustment mechanism in the oil pillow and the adjusting oil tank, and the oil return mechanism is arranged in the adjusting oil tank;
[0005] Preferably, the floating adjustment mechanism includes a floating collar and a liquid level tube, the liquid level tube is vertically arranged in the oil pillow, the bottom of the liquid level tube extends out of the oil pillow for communicating with the double-channel hose, the floating collar is axially slidably connected to the outer wall of the liquid level tube, the floating ring is driven by the oil level, the liquid level tube has a supplementary cavity and an overflow cavity, the supplementary cavity is provided with a supplementary hole corresponding to the highest level of the oil, the supplementary hole is communicated with the inside of the oil pillow, the overflow cavity is provided with an overflow hole corresponding to the lowest level of the oil, the overflow hole is communicated with the inside of the oil pillow, and the floating collar blocks the supplementary hole and the overflow hole when the liquid level is normal;
[0006] Further preferably, the floating collar no longer blocks the replenishment hole when the liquid level is lower than the normal state, and the floating collar no longer blocks the overflow hole when the liquid level is higher than the normal state;
[0007] Preferably, the dual-channel hose has independent first and second flow channels;
[0008] Preferably, the regulating oil tank has an oil storage chamber on one side and an oil overflow chamber on the other side, the oil storage chamber is further provided with a pressure airbag for forcing the oil in the oil storage chamber to flow out, the oil storage chamber is connected with the replenishing chamber through the first flow channel, and the oil overflow chamber is connected with the overflow chamber through the second flow channel;
[0009] Preferably, the top of the oil pillow also has an air pressure balancing cover for balancing the internal and external air pressures;
[0010] Preferably, the oil return mechanism comprises a piston, a one-way valve, a driving handle and a piston chamber, wherein the piston chamber is arranged at the bottom of the oil overflow chamber and communicates with the oil storage chamber, the one-way valve is arranged between the piston chamber and the oil storage chamber, and the one-way valve is used to limit the oil from entering the oil storage chamber only from the piston chamber, a piston is arranged in the piston chamber, and a driving handle extending out of the regulating oil tank is arranged on the back of the piston;
[0011] The beneficial effects of the utility model are: 1. A floating adjustment mechanism is arranged in the oil pillow, and the floating adjustment mechanism adjusts the liquid level in the oil pillow by replenishing or releasing, so that the oil level is automatically within a normal range; 2. The driving handle extending out of the oil tank is pulled back and forth, so that the driving handle drives the piston to reciprocate, and the oil in the overflow chamber is pumped to the oil storage chamber during the reciprocating motion of the piston, so that the overflowed oil can be reused. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a combined state structure view of the utility model;
[0013] Figure 2 This is a cross-sectional structural view of the oil pillow of the utility model;
[0014] Figure 3 This is a cross-sectional structural view of the regulating oil tank of the utility model. DETAILED DESCRIPTION
[0015] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0016] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.
[0017] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "provided with", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0018] See also Figures 1 to 3 , the utility model embodiment includes:
[0019] A transformer oil automatic compensation device comprises a transformer 1, an oil pillow 2, a double-channel hose 3, an adjusting oil tank 4, a floating adjustment mechanism 5 and an oil return mechanism 6, wherein the oil pillow 2 is arranged on one side of the top of the transformer 1 and is connected with the internal oil, a floating adjustment mechanism 5 for adjusting the oil level is arranged inside the oil pillow 2, the adjusting oil tank 4 is arranged on one side of the transformer 1, the double-channel hose 3 connects the floating adjustment mechanism 5 in the oil pillow 2 with the adjusting oil tank 4, and the oil return mechanism 6 is arranged in the adjusting oil tank 4;
[0020] The floating adjustment mechanism 5 includes a floating collar 7 and a liquid level tube 8. The liquid level tube 8 is vertically arranged in the oil pillow 2. The bottom of the liquid level tube 8 extends out of the oil pillow 2 to communicate with the double-channel hose 3. The floating collar 7 is axially slidably connected to the outer wall of the liquid level tube 8. The floating ring is driven by the oil level. The liquid level tube 8 has a supplementary cavity 81 and an overflow cavity 82. The supplementary cavity 81 is provided with a supplementary hole 83 corresponding to the highest level of the oil. The supplementary hole 83 is communicated with the inside of the oil pillow 2. The overflow cavity 82 is provided with an overflow hole 84 corresponding to the lowest level of the oil. The overflow hole 84 is communicated with the inside of the oil pillow 2. The floating collar 7 blocks the supplementary hole 83 and the overflow hole 84 when the liquid level is normal.
[0021] The floating collar 7 no longer blocks the replenishment hole 83 when the liquid level is lower than the normal state, and the floating collar 7 no longer blocks the overflow hole 84 when the liquid level is higher than the normal state;
[0022] The dual-channel hose 3 has an independent first channel 31 and a second channel 32;
[0023] The regulating oil tank 4 has an oil storage chamber 41 on one side and an oil overflow chamber 42 on the other side. The oil storage chamber 41 is also provided with a pressure airbag 9 for forcing the oil in the oil storage chamber 41 to flow out. The oil storage chamber 41 is connected to the replenishing chamber 81 through the first flow channel 31, and the oil overflow chamber 42 is connected to the overflow chamber 82 through the second flow channel 32.
[0024] The top of the oil pillow 2 also has an air pressure balance cover for balancing the internal and external air pressures;
[0025] The oil return mechanism 6 includes a piston 61, a one-way valve 62, a driving handle 63 and a piston chamber 64. The piston chamber 64 is arranged at the bottom of the oil overflow chamber 42 and communicates with the oil storage chamber 41. The one-way valve 62 is arranged between the piston chamber 64 and the oil storage chamber 41. The one-way valve 62 is used to limit the oil to enter the oil storage chamber 41 only from the piston chamber 64. The piston chamber 64 is provided with a piston 61. The back of the piston 61 is provided with a driving handle 63 extending out of the regulating oil tank 4.
[0026] Through the above settings, in the actual working process, its specific working principle is as follows:
[0027] When the liquid level in the oil pillow 2 is lower than the normal level: the floating collar 7 cannot be supported by the buoyancy of the oil in the oil pillow 2, so the floating collar 7 moves to the bottom of the oil pillow 2 and no longer blocks the replenishing hole 83. At this time, the oil storage chamber 41 is connected with the replenishing hole 83 through the first flow channel 31, and the pressure airbag 9 inside the oil storage chamber 41 forces the oil to flow into the oil pillow 2 for replenishment. When the liquid level is replenished to the normal level, the floating collar 7 blocks the replenishing hole 83 and the overflow hole 84 under the action of the buoyancy of the oil in the oil pillow 2, thereby completing the replenishment of the oil in the oil pillow 2.
[0028] When the liquid level in the oil pillow 2 is higher than the normal level: the floating collar 7 moves toward the top under the action of the buoyancy of the oil in the oil pillow 2, so that the floating collar 7 no longer blocks the overflow hole 84. At this time, the overflow hole 84 is connected with the overflow cavity 82 through the second flow channel 32, and the excess oil in the oil pillow 2 flows into the overflow cavity 42 for storage. When the liquid level is released to the normal level, the floating collar 7 blocks the replenishment hole 83 and the overflow hole 84 under the action of the buoyancy of the oil in the oil pillow 2, thereby completing the release of the oil in the oil pillow 2.
[0029] Overflow oil recovery: by reciprocatingly pulling the driving handle 63 extending out of the regulating oil tank 4, the driving handle 63 drives the piston 61 to reciprocate, and the piston 61 pumps the oil in the overflow chamber 42 to the oil storage chamber 41 during the reciprocating motion, so that the overflowed oil can be reused;
[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A transformer oil automatic compensation device, characterized in that: It includes a transformer, an oil pillow, a double-channel hose, an adjusting oil tank, a floating adjusting mechanism and an oil return mechanism. The oil pillow is arranged on one side of the top of the transformer and is connected with the internal oil. A floating adjusting mechanism for adjusting the oil level is arranged inside the oil pillow. The adjusting oil tank is arranged on one side of the transformer. The double-channel hose connects the floating adjusting mechanism in the oil pillow and the adjusting oil tank. The oil return mechanism is arranged in the adjusting oil tank.
2. The transformer oil automatic compensation device according to claim 1, characterized in that: The floating adjustment mechanism includes a floating ring and a liquid level tube. The liquid level tube is vertically arranged in the oil pillow. The bottom of the liquid level tube extends out of the oil pillow for communicating with the double-channel hose. The floating ring is axially slidably connected to the outer wall of the liquid level tube. The floating ring is driven by the oil level. The liquid level tube has a supplementary chamber and an overflow chamber. The supplementary chamber is provided with a supplementary hole corresponding to the highest oil level. The supplementary hole is communicated with the inside of the oil pillow. The overflow chamber is provided with an overflow hole corresponding to the lowest oil level. The overflow hole is communicated with the inside of the oil pillow. The floating ring blocks the supplementary hole and the overflow hole when the liquid level is normal.
3. The transformer oil automatic compensation device according to claim 2 is characterized in that: The floating collar no longer blocks the replenishment hole when the liquid level is lower than the normal state, and the floating collar no longer blocks the overflow hole when the liquid level is higher than the normal state.
4. The transformer oil automatic compensation device according to claim 1, characterized in that: The dual-channel hose has an independent first channel and a second channel.
5. The transformer oil automatic compensation device according to claim 1, characterized in that: The regulating oil tank has an oil storage chamber on one side and an oil overflow chamber on the other side. The oil storage chamber is also provided with a pressure airbag for forcing the oil in the oil storage chamber to flow out. The oil storage chamber is connected to the replenishing chamber through a first flow channel, and the oil overflow chamber is connected to the overflow chamber through a second flow channel.
6. The transformer oil automatic compensation device according to claim 1, characterized in that: The top of the oil pillow is also provided with an air pressure balancing cover for balancing the internal and external air pressures.
7. The transformer oil automatic compensation device according to claim 1, characterized in that: The oil return mechanism includes a piston, a one-way valve, a driving handle and a piston chamber. The piston chamber is arranged at the bottom of the oil overflow chamber and is connected to the oil storage chamber. The one-way valve is arranged between the piston chamber and the oil storage chamber. The one-way valve is used to limit the oil from entering the oil storage chamber only from the piston chamber. A piston is arranged in the piston chamber, and a driving handle extending out of the regulating oil tank is arranged on the back of the piston.