Diaphragm type transformer oil conservator

Abstract

The utility model provides a diaphragm type transformer oil conservator which comprises a shell, an oil conservator, a diaphragm and a liquidometer, a support is fixedly arranged at the top of the shell, the oil conservator is fixedly arranged on the support and communicated with the shell, the diaphragm is fixedly arranged in the middle of the oil conservator and divides the oil conservator into an upper cavity and a lower cavity, and the liquidometer is arranged at the top of the oil conservator in a lifting mode. And the diaphragm is fixedly connected. According to the diaphragm type transformer oil conservator, the oil conservator and the diaphragm are arranged in a matched mode, it is guaranteed that oil can be isolated from air when flowing to the oil conservator, the oil is prevented from making contact with the air, the oil amount in the oil conservator can be observed conveniently through the liquid level meter, oil supplementing is carried out accordingly, the upper half bin and the lower half bin are arranged in a matched mode, the diaphragm is convenient to install, and the oil conservator is convenient to use. Through the arrangement of the sealing ring, the sealing performance of the oil conservator is ensured, the service life of the diaphragm is prolonged, and through the matched arrangement of the graduated scale and the diaphragm, the graduated scale can measure the height of the oil level along with the height of the diaphragm.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a diaphragm type transformer oil pillow. Background Art

[0002] The oil pillow is commonly known as the oil conservator. It is generally a cylindrical container placed horizontally above the oil tank and connected to the oil tank of the transformer by a pipe. When the transformer oil expands due to heat, the oil flows from the oil tank to the oil conservator; when the transformer oil contracts due to cold, the oil flows from the oil conservator to the oil tank. Oil conservators are divided into two categories: open type and sealed type. The sealed type can be divided into rubber bladder or rubber diaphragm sealed type and metal corrugated sealed type. The capsule oil conservator is based on the open oil conservator, and a cloth-reinforced rubber bladder for isolating air is installed inside to form a sealed structure with the outer shell. The rubber bladder achieves volume compensation of the insulating oil by expansion and contraction.

[0003] Since the capsule is located inside the oil pillow, it is necessary to drill into the oil pillow manually for installation. Since the internal space of the oil pillow is limited, it increases the difficulty of installation for personnel, causing oil leakage and affecting the sealing state of the oil. The oil level gauge on the oil pillow is generally a float or an external glass oil pipe to observe the oil amount in the oil pillow. However, the float is set inside the oil pillow and the rotation angle of the float is limited, which will affect the measurement of the oil level gauge. Utility Model Content

[0004] The utility model aims to provide a diaphragm transformer oil pillow to solve the problems of inconvenience in installing capsules of the existing oil pillow and inaccurate measurement of the oil level meter.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A diaphragm transformer oil pillow, comprising:

[0007] A shell, a bracket is fixedly arranged on the top of the shell; an oil storage cabinet is fixedly arranged on the bracket and is connected to the shell; a diaphragm is fixedly arranged in the middle of the oil storage cabinet to divide the oil storage cabinet into two upper and lower chambers; a liquid level meter is lifted and arranged on the top of the oil storage cabinet and is fixedly connected to the diaphragm.

[0008] Furthermore, the oil storage cabinet is composed of an upper half warehouse and a lower half warehouse, the diaphragm is fixedly arranged between the upper half warehouse and the lower half warehouse, the lower half warehouse is fixedly arranged on the bracket, and the two chambers are opened in the upper half warehouse and the lower half warehouse.

[0009] Furthermore, the upper half bin and the lower half bin are respectively bent to provide mounting plates, the mounting plates are provided with through holes, and bolts are passed through the through holes.

[0010] Furthermore, a groove is provided on the mounting plate, and a sealing ring is provided in the groove.

[0011] Furthermore, the shell is connected to the lower half bin through a pipeline, an opening is provided on the top of the upper half bin, and the liquid level meter is raised and lowered in the opening.

[0012] Furthermore, the liquid level meter includes an upper clamping plate and a lower clamping plate located on the upper and lower surfaces of the diaphragm, a scale is fixedly provided on the upper clamping plate, and the scale is passed through the opening.

[0013] Furthermore, the outer circles of the upper clamping plate and the lower clamping plate are configured to be arc-shaped.

[0014] Furthermore, a protective tube is fixedly provided at the opening of the upper half compartment.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The diaphragm transformer oil pillow described in the utility model ensures that the oil can be isolated from the air when flowing to the oil pillow through the coordinated arrangement of the oil storage cabinet and the diaphragm, thereby avoiding contact between the oil and the air. The arrangement of the liquid level gauge facilitates the observation of the oil amount in the oil pillow so as to replenish the oil. The coordinated arrangement of the upper half bin and the lower half bin facilitates the installation of the diaphragm. The arrangement of the sealing ring ensures the sealing of the oil storage cabinet and improves the service life of the diaphragm. The coordinated arrangement of the scale and the diaphragm ensures that the scale can measure the height of the oil level by following the height of the diaphragm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the diaphragm transformer oil conservator according to an embodiment of the utility model;

[0019] Figure 2 This is an exploded schematic diagram of the oil storage cabinet according to an embodiment of the utility model;

[0020] Figure 3 This is an exploded schematic diagram of the diaphragm and the liquid level gauge according to an embodiment of the utility model;

[0021] Figure 4 This is an exploded schematic diagram of the sealing ring and the groove according to the embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of the exploded view of the upper half chamber and the diaphragm described in the embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Shell; 2. Bracket;

[0025] 3. Oil storage cabinet; 301. Upper half compartment; 302. Lower half compartment; 303. Mounting plate; 304. Through hole; 305. Bolt; 306. Groove; 307. Sealing ring;

[0026] 4. Diaphragm; 5. Chamber;

[0027] 6. Liquid level gauge; 601. Upper clamping plate; 602. Lower clamping plate; 603. Scale;

[0028] 7. Pipeline; 8. Opening; 9. Protective tube. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0030] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0033] This embodiment relates to a diaphragm 4-type transformer oil pillow, the overall structure is as follows: Figure 1 and Figure 2 As shown, it includes a housing 1, an oil storage tank 3, a diaphragm 4, and a liquid level meter 6.

[0034] Among them, a bracket 2 is fixedly arranged on the top of the outer shell 1, an oil conservator 3 is fixedly arranged on the bracket 2 and is connected with the outer shell 1, a diaphragm 4 is fixedly arranged in the middle of the oil conservator 3, and the oil conservator 3 is divided into two upper and lower chambers 5, and a liquid level meter 6 is raised and lowered and arranged on the top of the oil conservator 3 and fixedly connected to the diaphragm 4.

[0035] It is worth mentioning that the shell 1 is a transformer oil tank, the bracket 2 is located on one side of the oil tank and supports it upward, and the oil storage cabinet 3 is installed on the bracket 2. Since the bracket 2 supports it upward, the position of the oil storage cabinet 3 is higher than the height of the oil tank. The oil tank and the oil storage cabinet 3 are connected to ensure that the oil temperature can automatically flow into the oil tank after cooling, and automatically flow into the oil storage cabinet 3 after the oil temperature rises. The diaphragm 4 is located in the middle of the oil storage cabinet 3. When the oil temperature rises, the volume of the oil increases and pours into the lower chamber 5 of the oil storage cabinet 3. At this time, the oil will lift the diaphragm 4, and the upper chamber 5 is connected to the outside to ensure that the air in the upper chamber 5 can be discharged. The diaphragm 4 can separate the oil and air to prevent water vapor from entering the oil and increase the service life of the oil. When the diaphragm 4 rises and falls, it will drive the liquid level gauge 6 to rise and fall, so as to observe the oil level of the oil storage cabinet 3. In addition, an oil replenishing valve is connected to the lower chamber 5. The oil replenishing valve is a common valve body in the prior art and is not described here.

[0036] Based on the above overall introduction, an exemplary structure of the diaphragm 4-type transformer oil pillow of this embodiment is as follows: Figure 2 As shown, the oil storage tank 3 consists of an upper half bin 301 and a lower half bin 302 , the diaphragm 4 is fixedly arranged between the upper half bin 301 and the lower half bin 302 , the lower half bin 302 is fixedly arranged on the bracket 2 , and two chambers 5 are opened in the upper half bin 301 and the lower half bin 302 .

[0037] It should be noted that the lower half warehouse 302 is fixedly mounted on the bracket 2, and the lower chamber 5 is opened on the lower half warehouse 302. The oil in the oil tank can circulate with the lower half warehouse 302. The diaphragm 4 is sealed on the lower half warehouse 302, and the upper half warehouse 301 is abutted on the lower half warehouse 302. The diaphragm 4 is located therebetween to ensure that the diaphragm 4 and the oil storage tank 3 can be sealed. The upper chamber 5 is opened in the upper half warehouse 301. When too much oil flows into the lower half warehouse 302, the diaphragm 4 will be lifted. According to the amount of oil, the diaphragm 4 will be lifted to the upper half warehouse 301, and the air in the upper half warehouse 301 will be discharged.

[0038] As a preferred example, Figure 3 and Figure 4 As shown, the upper half chamber 301 and the lower half chamber 302 of this embodiment are respectively bent to form a mounting plate 303, a through hole 304 is provided on the mounting plate 303, and a bolt 305 is inserted into the through hole 304. A groove 306 is provided on the mounting plate 303, and a sealing ring 307 is provided in the groove 306. The housing 1 is connected to the lower half chamber 302 through the pipeline 7, and an opening 8 is provided on the top of the upper half chamber 301, and the liquid level meter 6 is raised and lowered in the opening 8.

[0039] Specifically, the mounting plate 303 can be welded to the upper half chamber 301 and the lower half chamber 302. The two mounting plates 303 clamp the diaphragm 4. The mounting plate 303 can facilitate the installation of the diaphragm 4 and the assembly of the upper half chamber 301 and the lower half chamber 302. The bolt 305 is inserted into the through hole 304, and the nut is screwed on the bolt 305. The bolt 305 and the nut tighten the two mounting plates 303. The diaphragm 4 is also provided with a through hole 304. The bolt 305 passes through the through hole 304 on the diaphragm 4 to improve the tightening effect of the diaphragm 4 and prevent the diaphragm 4 from detaching from the mounting plate 303. The groove 306 is provided near the mounting plate 303. At the upper and lower chambers 5, that is, the grooves 306 opened on the two mounting plates 303 are connected to the upper and lower chambers 5 respectively, the sealing gasket is located in the groove 306 and in contact with the diaphragm 4. Such a setting can ensure that the diaphragm 4 will not be in direct contact with the oil storage cabinet 3, avoid wear of the diaphragm 4, and increase the service life of the diaphragm 4. A valve is installed on the pipeline 7, and both ends of the pipeline 7 are connected with the lower half warehouse 302 and the outer shell 1 to ensure that the oil can flow between the lower half warehouse 302 and the outer shell 1. The setting of the opening 8 can ensure that the upper chamber 5 is connected to the outside, and the liquid level gauge 6 rises and falls at the opening 8, so as to facilitate checking the oil level in the oil storage cabinet 3.

[0040] As a preferred embodiment, Figure 3 and Figure 5 As shown, in this embodiment, the liquid level meter 6 includes an upper clamping plate 601 and a lower clamping plate 602 located on the upper and lower surfaces of the diaphragm 4, and a scale 603 is fixedly arranged on the upper clamping plate 601, and the scale 603 is penetrated in the opening 8. The outer rings of the upper clamping plate 601 and the lower clamping plate 602 are arranged in an arc shape. A protective tube 9 is fixedly arranged at the through hole 304 of the upper half chamber 301.

[0041] It should be noted that the upper clamping plate 601 and the lower clamping plate 602 are clamped on the diaphragm 4. When the diaphragm 4 is lifted, the upper clamping plate 601 and the lower clamping plate 602 are lifted and lowered accordingly. Since the scale 603 can only be lifted and lowered at the opening 8, the upper clamping plate 601 and the lower clamping plate 602 can only be lifted and lowered. The scale 603 is marked with dimensions, so that the oil level of the oil storage tank 3 can be observed more accurately. That is, how much the scale 603 extends out of the opening 8 is, that is, the scale marked on the scale 603. The less the ruler 603 extends, the lower the oil level is, and the arc-shaped setting of the upper clamping plate 601 and the lower clamping plate 602 can avoid friction between the diaphragm 4 and the upper clamping plate 601 and the lower clamping plate 602, thereby increasing the service life of the diaphragm 4. The protective tube 9 and the through hole 304 are concentrically arranged, and the scale 603 rises and falls in the protective tube 9. The protective tube 9 can be set to be transparent, which is convenient for observing the scale 603. It can also prevent the scale 603 from being bumped or pressed down by external force, thereby affecting the rising and falling of the scale 603.

[0042] The diaphragm 4 type transformer oil pillow in this embodiment ensures that the oil can be isolated from the air when flowing to the oil pillow 3 to avoid contact between the oil and the air through the coordinated arrangement of the oil storage cabinet 3 and the diaphragm 4. The setting of the liquid level meter 6 facilitates the observation of the oil amount in the oil pillow so as to replenish the oil. The coordinated arrangement of the upper half bin 301 and the lower half bin 302 facilitates the installation of the diaphragm 4. The setting of the sealing ring 307 ensures the sealing of the oil storage cabinet 3 and improves the service life of the diaphragm 4. The coordinated arrangement of the scale 603 and the diaphragm 4 ensures that the scale 603 can measure the height of the oil level by following the height of the diaphragm 4.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A diaphragm transformer oil pillow, characterized in that: include: A housing (1), wherein a bracket (2) is fixedly arranged on the top of the housing (1); An oil storage cabinet (3) is fixedly mounted on the bracket (2) and is in communication with the housing (1); A diaphragm (4) is fixedly arranged in the middle of the oil storage tank (3) to divide the oil storage tank (3) into two upper and lower chambers (5); A liquid level meter (6) is arranged on the top of the oil storage tank (3) in a lifting manner and is fixedly connected to the diaphragm (4).

2. The diaphragm transformer oil pillow according to claim 1, characterized in that: The oil storage cabinet (3) is composed of an upper half chamber (301) and a lower half chamber (302), the diaphragm (4) is fixedly arranged between the upper half chamber (301) and the lower half chamber (302), the lower half chamber (302) is fixedly arranged on the bracket (2), and the two chambers (5) are opened in the upper half chamber (301) and the lower half chamber (302).

3. The diaphragm transformer oil pillow according to claim 2, characterized in that: The upper half bin (301) and the lower half bin (302) are respectively bent to form mounting plates (303), the mounting plates (303) are provided with through holes (304), and bolts (305) are inserted into the through holes (304).

4. The diaphragm transformer oil conservator according to claim 3, characterized in that: The mounting plate (303) is provided with a groove (306), and a sealing ring (307) is arranged in the groove (306).

5. The diaphragm transformer oil conservator according to claim 2, characterized in that: The housing (1) is connected to the lower half bin (302) via a pipeline (7); an opening (8) is provided at the top of the upper half bin (301); and the liquid level meter (6) is arranged to be raised and lowered in the opening (8).

6. The diaphragm transformer oil conservator according to claim 5, characterized in that: The liquid level meter (6) comprises an upper clamping plate (601) and a lower clamping plate (602) located on the upper and lower surfaces of the diaphragm (4), a scale (603) being fixedly provided on the upper clamping plate (601), and the scale (603) is inserted into the opening (8).

7. The diaphragm transformer oil conservator according to claim 6, characterized in that: The outer circles of the upper clamping plate (601) and the lower clamping plate (602) are arranged to be arc-shaped.

8. The diaphragm transformer oil conservator according to claim 5, characterized in that: A protective tube (9) is fixedly provided at the opening (8) of the upper half bin (301).

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