Capsule and floating ball isolated transformer oil conservator
By using the design of the foot and first reinforcement rib in the transformer oil storage cabinet isolated from the capsule and float ball, the problem of adhesion between the float ball and the capsule is solved, achieving the accuracy of oil level indication and the reduction of capsule cost.
Patent Information
- Application Number
- CN202422525872.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-18
AI Technical Summary
In traditional oil storage cabinets, the direct contact between transformer oil and air causes oil quality to age, the adhesion between float balls and capsules leads to inaccurate oil level indication, and the improvement in the shape of the capsule increases the production cost.
The design of the foot and the first reinforcement rib is adopted to reserve floating space for the float ball to avoid adhesion with the capsule, and the capsule processing cost is reduced by installing the foot separately.
The normal oil level of the float ball is indicated, avoiding adhesion between the capsule and the float ball, and reducing the production cost of the capsule.
Smart Images
Figure CN223218094U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a transformer oil storage cabinet with capsule and float isolation. Background Art
[0002] During transformer operation, the volume of transformer oil in the tank will expand and contract due to load changes or fluctuations in external ambient temperature. Traditional oil conservators regulate oil volume changes through direct contact between air and oil, which leads to oil aging.
[0003] To solve the above problems, capsules are used in the transformer oil conservator with capsule and float isolation to seal and isolate the transformer oil from the outside air. In order to display the oil level, the connecting rod and float in the oil level gauge rise and fall with the oil level. During the rise and fall of the float, the float will interfere with the capsule, causing the float and capsule to stick together, thereby making the oil level indication inaccurate and even causing damage to the capsule.
[0004] In the related art, the shape of the capsule has been improved, and the shape of the capsule has been changed to a hook shape to avoid contact with the float and the connecting rod. Figure 1 shown.
[0005] However, the above-mentioned method of changing the shape of the capsule has the problem of high capsule manufacturing cost. Since the capsule is hook-shaped, the capsule manufacturing cost is high and is not easy to implement. Utility Model Content
[0006] In view of at least one of the above technical problems, the utility model provides a transformer oil conservator with a capsule and a float isolated, using two first reinforcing ribs to abut against the legs of the capsule, reserving space for the float between the two first reinforcing ribs so that the float can normally indicate the oil level.
[0007] According to a first aspect of the present invention, a transformer oil conservator with capsule and float isolation is provided, comprising:
[0008] a housing for storing transformer oil;
[0009] an oil level gauge, the oil level gauge comprising a connecting rod and a float connected to the connecting rod, for indicating the oil level in the housing;
[0010] A capsule, wherein a support leg is provided on a side of the capsule facing the oil level gauge, and the support leg is provided toward the bottom of the shell to isolate the outside air from the transformer oil;
[0011] a first reinforcing rib, the first reinforcing rib being arranged between the oil level gauge and the bladder, two first reinforcing ribs being provided, the two first reinforcing ribs being respectively located on both sides of the oil level gauge, and the positions thereof corresponding to the supporting legs;
[0012] When the capsule is in an expanded state, the two legs abut against the first reinforcing rib, reserving a floating position for the float.
[0013] In some embodiments of the present invention, a second reinforcing rib is provided on the outside of the capsule, and the second reinforcing rib is used to isolate the shell from the capsule.
[0014] In some embodiments of the present invention, the transformer oil conservator with capsule and float isolation includes a pressure regulating mechanism, which includes a connecting pipe head connecting the capsule to the outside of the shell, and a cover plate is provided on the upper side of the connecting pipe head.
[0015] In some embodiments of the present invention, the pressure regulating mechanism further includes a breathing tube connected to the cover plate, a fixing flange connecting the cover plate and a connecting pipe head, and the other end of the breathing tube is connected to the outside of the shell.
[0016] In some embodiments of the present invention, the oil level gauge further includes a limit assembly, which is disposed at the bottom end of the interior of the housing and is used to limit the minimum height of the float.
[0017] In some embodiments of the present invention, the limiting assembly includes a limiting rod, which is fixed to the bottom end of the shell and is used to ensure that the float can contact the connecting rod and stop descending when it descends to the lowest position.
[0018] In some embodiments of the present invention, the upper portion of the shell has an upper pipe joint.
[0019] In some embodiments of the present invention, a lower pipe joint is provided at the bottom of the shell.
[0020] In some embodiments of the present invention, the capsule-and-float-isolated transformer oil conservator includes a nitrogen protection mechanism, and the nitrogen protection mechanism includes a nitrogen interface connected to the outside of the shell.
[0021] In some embodiments of the present invention, the capsule is made of rubber and is filled with an inert gas.
[0022] The beneficial effects of the utility model are as follows: the utility model arranges two supporting feet at the bottom of the airbag, so that the two supporting feet abut against the first reinforcing rib when the capsule is expanded, and reserves space for the float to float; compared with the prior art, the arrangement of the supporting feet and the first reinforcing rib provides space for the float, avoiding adhesion of the float to the capsule, and at the same time, the supporting feet are arranged on the capsule, avoiding the capsule from being processed into a special shape, thereby reducing the capsule processing cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0024] Figure 1 This is a schematic diagram of the structure of a transformer oil conservator with hook-type capsule and float isolation;
[0025] Figure 2 This is a structural diagram of a transformer oil conservator with capsule and float isolation in an embodiment of the present utility model;
[0026] Figure 3 In the embodiment of the present utility model Figure 2 A partial enlarged view of point A in the middle;
[0027] Figure 4 This is a structural schematic diagram from another perspective of the transformer oil conservator with capsule and float isolation in an embodiment of the utility model.
[0028] Explanation of the accompanying drawings: 1. Shell; 11. Upper pipe joint; 12. Lower pipe joint; 2. Oil level gauge; 21. Connecting rod; 22. Float; 23. Limit assembly; 23a. Limit rod; 3. Capsule; 31. Support foot; 4. First reinforcing rib; 5. Second reinforcing rib; 6. Pressure regulating mechanism; 61. Connecting pipe head; 62. Cover plate; 63. Breathing tube; 64. Fixed flange; 7. Nitrogen protection mechanism; 71. Nitrogen interface. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art in the field of the present invention. The terms used in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.
[0032] like Figures 2 to 4 The transformer oil conservator with capsule and float isolation shown includes: a shell 1, an oil level gauge 2, a capsule 3 and a first reinforcing rib 4;
[0033] like Figure 2 As shown in the figure, the housing 1 is used to store transformer oil. It should be noted that the shape of the housing 1 can be rectangular, cylindrical or other special shapes. In the embodiment of the utility model, the transformer oil conservator with capsule and float isolation is used to store transformer oil. The housing 1 has good sealing performance to prevent transformer oil leakage. At the same time, the housing 1 has good corrosion resistance to prevent transformer oil from corroding the housing 1.
[0034] The oil level gauge 2 includes a connecting rod 21 and a float 22 connected to the connecting rod 21, and is used to indicate the oil level in the housing 1. It should be noted that the float 22 is made of a material with a density lower than that of the transformer oil. The connecting rod 21 and the float 22 are connected by a flexible connection, such as a screw connection, which makes the float 22 easy to replace and reduces maintenance costs.
[0035] A support leg 31 is provided on the side of the capsule 3 facing the oil level gauge 2. The capsule 3 is arranged inside the housing 1 to isolate the outside air from the transformer oil. It should be noted that the support leg can be processed separately and fixedly connected to the capsule 3. The specific fixed connection method can be a bolt and nut connection or a snap connection. The connection accuracy meets the requirements to isolate the air. It should also be noted that when selecting the material of the support leg 31, the load capacity of the capsule 3 must be taken into consideration to ensure that the capsule 3 is in normal working condition.
[0036] The first reinforcing rib 4 is provided between the oil level gauge 2 and the capsule 3. Two first reinforcing ribs 4 are provided, and the two first reinforcing ribs 4 are respectively located on both sides of the oil level gauge 2, and the positions correspond to the support legs 31. The provision of the first reinforcing rib 4 prevents the capsule 3 from interfering with the oil level gauge 2, thereby preventing the float 22 from adhering to the capsule 3.
[0037] When the capsule 3 is in an expanded state, the two legs 31 contact the first reinforcement rib 4, reserving a floating position for the float 22; when the capsule 3 is affected by the transformer oil and the external temperature, the volume of the capsule 3 increases, and the two legs 31 on the capsule 3 move downward and abut against the reinforcement rib, as shown in FIG. Figure 4As shown in the figure, the float 22 can float between the gap between the reinforcing rib and the support leg 31 and will not stick to the capsule 3. At the same time, the support leg 31 is installed separately on the capsule 3, avoiding the high production cost of the capsule 3. Regarding how the oil level gauge 2 checks the oil level, a visual window is set on the side of the capsule. This is a common technical means used by those skilled in the art and will not be repeated here.
[0038] In some embodiments of the present invention, Figure 2 As shown in FIG, a second reinforcing rib 5 is provided on the outside of the capsule 3 to isolate the shell 1 from the capsule 3. The second reinforcing rib 5 prevents direct contact between the capsule 3 and the oil conservator, thereby reducing the risk of corrosion or contamination that may be caused by direct contact. Furthermore, due to the isolation effect of the second reinforcing rib 5, when the oil conservator vibrates externally or internally, the second reinforcing rib 5 can absorb and disperse the vibration energy to a certain extent, reducing the direct impact of vibration on the capsule 3 and extending the service life of the capsule 3.
[0039] In some embodiments of the present invention, Figure 2 and Figure 3 As shown in FIG, a transformer oil conservator with capsule and float isolation includes a pressure regulating mechanism 6, which includes a connecting pipe head 61. Connecting pipe head 61 connects the capsule 3 to the exterior of the housing 1. A cover plate 62 is provided on the upper side of connecting pipe head 61. When the capsule 3 in the transformer oil conservator with capsule and float isolation expands due to factors such as increased temperature, the air is exhausted to the outside of the conservator through connecting pipe head 61. Conversely, when the airbag contracts, outside air enters the capsule 3 through certain equipment, such as a respirator, thereby maintaining the oil pressure inside the conservator at a certain level. Cover plate 62 provides a seal, preventing dust, moisture, and other impurities from entering the conservator through connecting pipe head 61 and affecting the oil quality.
[0040] In some embodiments of the present invention, Figure 2 and Figure 3 As shown in FIG, the pressure regulating mechanism 6 further includes a breathing tube 63 connected to the cover plate 62 and a fixing flange 64 connecting the cover plate 62 and the connecting pipe head 61. The other end of the breathing tube 63 is connected to the exterior of the housing 1. The main function of the breathing tube 63 is to allow the gas inside the oil conservator to breathe when the volume of the transformer oil changes, that is, to expel or inhale gas to maintain pressure balance and prevent oil overflow due to excessive pressure or impurities from being inhaled due to insufficient pressure. The fixing flange 64 is a fastening device used to connect the cover plate 62 and the connecting pipe head 61, ensuring the sealing of the connection and preventing gas or liquid leakage. Fixing the fixing flange 64 in place with bolts or other fasteners can ensure the stability and reliability of the pressure regulating mechanism 6.
[0041] In some embodiments of the present invention, Figure 2As shown in FIG, the oil level gauge 2 further includes a limit assembly 23 disposed at the bottom end of the housing 1. Limit assembly 23 is used to limit the minimum height of the float 22. If the oil level in the transformer tank drops to an extremely low level, without the limit assembly 23, the float 22 could continue to fall and strike the bottom of the housing 1 of the oil level gauge 2. This could damage the float 22 itself and affect its measurement accuracy and reliability. Limit assembly 23 prevents this from happening by limiting the float 22's minimum position.
[0042] In some embodiments of the present invention, Figure 2 As shown in FIG, the limit assembly 23 includes a limit rod 23a fixed to the bottom end of the housing 1. The limit rod 23a is used to ensure that the float 22 contacts the connecting rod 21 and stops its descent when it reaches its lowest position. When the oil level drops to a certain level, the float 22 drops accordingly. When the connecting rod 21 contacts the limit rod 23a, the limit rod 23a blocks the float 22 from descending further, preventing damage to the float 22 due to excessive descent. It should be noted that the method of fixing the limit rod 23a to the bottom end of the housing 1 can be welded or bolted.
[0043] In some embodiments of the present invention, Figure 2 As shown in FIG, the upper portion of the housing 1 has an upper pipe joint 11. It should be noted that the upper pipe joint 11 is used to connect to a dehumidifier, oil tank, etc., and is set by those skilled in the art as required. It should also be noted that the upper pipe joint 11 has standardized dimensions to facilitate matching with different models of oil level gauges 2 and oil tanks.
[0044] In some embodiments of the present invention, Figure 2 As shown in FIG, a lower pipe joint 12 is provided at the bottom of the housing 1. The lower pipe joint 12 is used for draining, replenishing oil, sampling and testing, etc. When used for draining, the lower pipe joint 12 allows the transformer oil to be discharged when needed. When used for replenishing oil, the lower pipe joint 12 is connected to the oil tank, etc., and the oil is automatically fed by the machine control. The lower pipe joint 12 can also be used for sampling and testing the status of the transformer oil to ensure the quality of the transformer oil.
[0045] In some embodiments of the present invention, Figure 2As shown in FIG, the transformer oil conservator isolated by a capsule and a float includes a nitrogen protection mechanism 7, which includes a nitrogen interface 71 connected to the outside of the housing 1. The main purpose of the nitrogen protection mechanism 7 is to maintain the air pressure balance within the oil conservator by injecting nitrogen into the oil conservator, thereby preventing degradation of the transformer oil due to oxidation and improving the operational safety and reliability of the transformer. When the air pressure within the transformer oil conservator isolated by a capsule and a float falls below a set value, the nitrogen protection mechanism 7 automatically activates. At the same time, the nitrogen reacts with the oxygen in the transformer oil to form nitrogen compounds, thereby slowing the oxidation rate of the transformer oil and extending its service life.
[0046] In some embodiments of the present invention, capsule 3 is made of rubber and filled with an inert gas. The rubber capsule 3 resists erosion and penetration by grease, and the inert gas fills the capsule 3 to isolate it from external air and moisture, preventing moisture, oxidation, or corrosion of the material inside the capsule 3.
[0047] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A transformer oil conservator with capsule and float isolation, characterized in that: include: a housing for storing transformer oil; an oil level gauge, the oil level gauge comprising a connecting rod and a float connected to the connecting rod, for indicating the oil level in the housing; A capsule, wherein a support leg is provided on a side of the capsule facing the oil level gauge, and the support leg is provided toward the bottom of the shell to isolate the outside air from the transformer oil; a first reinforcing rib, the first reinforcing rib being arranged between the oil level gauge and the bladder, two first reinforcing ribs being provided, the two first reinforcing ribs being respectively located on both sides of the oil level gauge, and the positions thereof corresponding to the supporting legs; When the capsule is in an expanded state, the two legs abut against the first reinforcing rib, reserving a floating position for the float.
2. The transformer oil conservator with capsule and float isolation according to claim 1, characterized in that: A second reinforcing rib is provided on the outside of the capsule, and the second reinforcing rib is used to isolate the shell and the capsule.
3. The transformer oil conservator with capsule and float isolation according to claim 1, characterized in that: The transformer oil conservator with the capsule and float isolated comprises a pressure regulating mechanism, which comprises a connecting pipe head connecting the capsule to the outside of the shell, and a cover plate is provided on the upper side of the connecting pipe head.
4. The transformer oil conservator with capsule and float isolation according to claim 3, characterized in that: The pressure regulating mechanism further comprises a breathing tube connected to the cover plate, and a fixing flange connecting the cover plate and a connecting pipe head, and the other end of the breathing tube is connected to the outside of the shell.
5. The transformer oil conservator with capsule and float isolation according to claim 1, characterized in that: The oil level gauge further comprises a limit assembly, which is arranged at the bottom end of the interior of the housing and is used to limit the minimum height of the float.
6. The transformer oil conservator with capsule and float isolation according to claim 5, characterized in that: The limiting assembly includes a limiting rod, which is fixed to the bottom end of the shell and is used to ensure that the float can contact the connecting rod and stop descending when it descends to the lowest position.
7. The transformer oil conservator with capsule and float isolation according to claim 1, characterized in that: The upper portion of the housing is provided with an upper pipe joint.
8. The transformer oil conservator with capsule and float isolation according to claim 1, characterized in that: A lower pipe joint is provided at the bottom of the shell.
9. The transformer oil conservator with capsule and float isolation according to claim 1, characterized in that: The transformer oil conservator with capsule and float isolation includes a nitrogen protection mechanism, and the nitrogen protection mechanism includes a nitrogen interface connected to the outside of the shell.
10. The transformer oil conservator with capsule and float isolation according to claim 1, characterized in that: The capsule is made of rubber and is filled with inert gas.