CN214667138U - Novel oil level indicator - Google Patents
Novel oil level indicator Download PDFInfo
- Publication number
- CN214667138U CN214667138U CN202120877872.1U CN202120877872U CN214667138U CN 214667138 U CN214667138 U CN 214667138U CN 202120877872 U CN202120877872 U CN 202120877872U CN 214667138 U CN214667138 U CN 214667138U
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- oil level
- valve
- cavity
- pipe
- pressure relief
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Abstract
The utility model discloses a novel oil level gauge, which comprises a pressure relief valve part and a measuring pipe part; the pressure release valve part comprises a valve shell, a cavity is formed in the valve shell, a pressure release assembly is arranged in the cavity, an oil injection pipe is arranged at the upper part of the valve shell and communicated with the cavity, and the oil injection pipe is provided with a pipe orifice and a cover cap for sealing the pipe orifice; the measuring tube portion is communicated with the pressure relief valve portion; when the oil tank of the transformer loaded with the novel oil level gauge needs to be pressurized and filled with oil, the oil can be filled only through the oil filling pipe without removing the pressure release valve part; after the oil injection is completed, the transformer and the novel oil level gauge on the transformer can be subjected to a pressurization leakage test together.
Description
Technical Field
The utility model relates to an oil level gaugember, especially a novel oil level gaugember.
Background
The oil level indicator is used as an important part of a fully-sealed liquid-immersed transformer and can be used as a scale for displaying the content level of the insulating liquid in the oil tank. In addition, the oil level gauge often plays a role of pressurizing and oiling during the assembly process of the transformer. In addition, an oil level gauge and a pressure relief valve may be connected through a connection flange to relieve pressure through the pressure relief valve. However, in this case, when the oil level gauge is pressurized and filled, it is necessary to remove the pressure release valve, fill the oil from the connection flange, and perform pressure leak test. At the moment, the pressure relief valve is not installed on the transformer, so that the pressure relief valve and the transformer cannot be pressurized and tested for leakage, the sealing performance of the pressure relief valve cannot be verified, and potential safety hazards are easily left.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a novel oil level gaugember.
The utility model provides a technical scheme that its problem adopted is:
a novel oil level gauge comprising:
the pressure relief valve comprises a valve shell, a cavity is formed in the valve shell, a pressure relief assembly is arranged in the cavity, an oil filling pipe is arranged at the upper part of the valve shell and communicated with the cavity, and the oil filling pipe is provided with a pipe orifice and a cover cap for covering the pipe orifice;
a measurement tube portion in communication with the pressure relief valve portion.
Further, the valve housing includes a vent portion and a valve seat, the vent portion being located above the valve seat; the cavity penetrates through the vent part and the valve seat.
Further, the filler pipe is located on a side surface of the vent portion, and the filler pipe protrudes in an outer direction of the valve housing.
Further, the protruding portion of the oil filling pipe is provided with an external thread, and the cap is provided with an internal thread matched with the external thread.
Further, a vent hole communicated with the cavity is arranged below the valve seat.
Further, the pressure relief assembly includes a diaphragm disc, a post, and a spring; the membrane disc covers the vent hole; one end of the upright post is connected with the membrane disc, and the other end of the upright post is connected with the top of the ventilation part through an elastic piece; the spring is sleeved on the upright post.
Further, the vent part is cylindrical, and the valve seat is bowl-shaped; the outer diameter of the vent portion is smaller than the maximum outer diameter of the valve seat.
Further, the measuring tube part includes a tube body and a float; the float is located within the tube.
Further, the body is equipped with the observation window.
Furthermore, the outer pipe wall of body is equipped with to the convex screens lug of outside direction of body.
The novel oil level indicator at least has the following beneficial effects: the novel oil level gauge is inserted into the fully-sealed liquid-immersed transformer, and the content of insulating liquid in an oil tank of the fully-sealed liquid-immersed transformer is displayed through the measuring pipe part; the pressure relief valve part releases the pressure, so that the internal pressure of the transformer is prevented from being too high to explode. When the oil tank pressurization oiling of the transformer that has loaded novel oil level gaugember needs, only need remove the block, open the mouth of pipe, through annotate the oil pipe pressurize the oiling can, need not to remove pressure release valve portion. After pressurization oiling is completed, the cover cap is covered again, the pipe orifice is sealed, and leakage test can be carried out on the transformer and the novel oil level gauge on the transformer together.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the following figures and examples.
Fig. 1 is a structural diagram of a novel oil level gauge according to an embodiment of the present invention;
fig. 2 is an internal structural view of the pressure relief valve portion.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 and 2, an embodiment of the present invention provides a novel oil level gauge. The novel oil level gauge includes a pressure relief valve portion 100 and a measuring tube portion 200.
Wherein, the pressure release valve portion 100 includes a valve housing 110, a cavity 130 is formed inside the valve housing 110, a pressure release assembly 140 is arranged in the cavity 130, a filler pipe 120 is arranged on the upper portion of the valve housing 110, the filler pipe 120 is communicated with the cavity 130, the filler pipe 120 is provided with a nozzle 121 and a cap 122 for capping the nozzle 121; the measurement tube portion 200 communicates with the pressure relief valve portion 100.
In this embodiment, by inserting the new oil level gauge into the hermetically sealed liquid-immersed transformer, the content of the insulating liquid in the oil tank of the hermetically sealed liquid-immersed transformer is displayed by the measurement tube portion 200; the pressure relief valve portion 100 relieves the pressure, thereby preventing the transformer from being exploded due to excessive internal pressure.
When the oil tank of the transformer loaded with the novel oil level indicator is required to be oiled, only the cap 122 needs to be removed, the pipe orifice 121 is opened, and the oil is filled through the oil filling pipe 120 without removing the pressure release valve portion 100. After the pressurization and oil injection is completed, the cover cap 122 is covered again, the pipe orifice 121 is sealed, and then the pressurization leakage test can be carried out on the transformer and the novel oil level gauge on the transformer together.
In some embodiments of the present invention, the valve housing 110 includes a vent portion 111 and a valve seat 112, the vent portion 111 being located above the valve seat 112; the cavity 130 penetrates the vent part 111 and the valve seat 112.
In this embodiment, after the novel oil level gauge is installed on the transformer, the cap 122 on the oil filling pipe 120 is removed, and the air pipe is connected to the oil filling pipe 120, so that the air tightness of the transformer, the novel oil level gauge and the connection between the transformer and the novel oil level gauge can be detected simultaneously, which is simple and convenient, and the problem that the air tightness of the pressure relief valve portion 100 itself or the connection cannot be detected is avoided. After the airtightness detection is completed, a sealing gasket is placed at the nozzle 121 of the filler pipe 120 and the cap 122 is covered, so that sealing is realized.
In some embodiments of the present invention, the oil filling pipe 120 is located at a side of the vent portion 111, and the oil filling pipe 120 protrudes toward an outside of the valve housing 110. Specifically, the filler pipe 120 and the vent portion 111 are perpendicular to each other. In other embodiments, the filler pipe 120 may also be raised upward relative to the vent portion 111 at an angle ranging from 0 degrees to 30 degrees. This facilitates the filling of oil from the oil filling pipe 120 to the pressure relief valve portion 100.
In some embodiments of the present invention, the protruding portion of the filler pipe 120 is provided with external threads, and the cap 122 is provided with internal threads that mate with the external threads. The cap 122 is screwed to the filler pipe 120, so that the cap 122 can be conveniently removed, and the sealing property between the cap 122 and the filler pipe 120 can be ensured.
In some embodiments of the present invention, a vent 131 is provided below the valve seat 112 and communicates with the cavity 130.
Referring to fig. 2, in some embodiments of the present invention, the pressure relief assembly 140 includes a diaphragm disc 141, a post 142, and a spring 143; the membrane disc 141 covers the vent hole 131; one end of the upright column 142 is connected with the membrane disc 141, and the other end of the upright column 142 is connected with the top of the ventilation part 111 through an elastic piece 144; the spring 143 is sleeved on the pillar 142.
In this embodiment, the valve seat 112 is provided with a boss 145, and the boss 145 facilitates enlarging the area over which pressure within the transformer tank acts on the diaphragm 141. When the pressure of the gas generated by overheating in the transformer oil tank on the membrane disc 141 is greater than the pressure of the spring 143, the membrane disc 141 moves upwards and drives the upright post 142 to move upwards, the upright post 142 moves upwards to extrude the elastic member 144, the membrane disc 141 pops up and jumps to the limited position of the spring 143, and the transformer oil is discharged. The pressure in the transformer oil tank is rapidly reduced to a normal value, the membrane disc 141 is reset under the action of the spring 143, the upright column 142 moves downwards along with the membrane disc 141, and the novel release valve is sealed again to play a role in protecting the transformer oil tank.
In some embodiments of the present invention, the vent part 111 is cylindrical, and the valve seat 112 is bowl-shaped; the outer diameter of the vent portion 111 is smaller than the maximum outer diameter of the valve seat 112. This facilitates the dispersion of the pressure.
In some embodiments of the present invention, the measurement tube 200 includes a tube 210 and a float 220; a float 220 is positioned within the tube 210. Insert this novel oil level gaugember to in the totally enclosed liquid immersed transformer, during insulating liquid gets into body 210 in the oil tank, float 220 drifted up along with insulating liquid, and then can show the liquid level more obviously.
In some embodiments of the present invention, the tube 210 is provided with an observation window 230. The liquid level in the measurement pipe portion 200 can be clearly observed through the observation window 230.
In some embodiments of the present invention, the outer wall of the tube body 210 is provided with a locking protrusion 240 protruding toward the outer side of the tube body 210. The clamping convex block 240 can be used for fixing the novel oil level gauge on the fully-sealed liquid-immersed transformer.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and the technical effects of the present invention can be achieved by the same means, which all belong to the protection scope of the present invention.
Claims (10)
1. A novel oil level gauge, comprising:
the pressure relief valve comprises a valve shell, a cavity is formed in the valve shell, a pressure relief assembly is arranged in the cavity, an oil filling pipe is arranged at the upper part of the valve shell and communicated with the cavity, and the oil filling pipe is provided with a pipe orifice and a cover cap for covering the pipe orifice;
a measurement tube portion in communication with the pressure relief valve portion.
2. The new oil level indicator of claim 1, wherein said valve housing includes a vent portion and a valve seat, said vent portion being located above said valve seat; the cavity penetrates through the vent part and the valve seat.
3. The new oil level gauge as claimed in claim 2, wherein said filler pipe is located at a side of said vent portion, said filler pipe protruding in an outside direction of said valve housing.
4. The new oil level indicator of claim 3, wherein said projecting portion of said filler pipe is provided with an external thread, and said cap is provided with an internal thread for mating with said external thread.
5. The novel oil level indicator according to claim 2, wherein a vent hole communicating with said cavity is provided below said valve seat.
6. The new oil level indicator of claim 5, wherein said pressure relief assembly comprises a diaphragm disc, a post and a spring; the membrane disc covers the vent hole; one end of the upright post is connected with the membrane disc, and the other end of the upright post is connected with the top of the ventilation part through an elastic piece; the spring is sleeved on the upright post.
7. The new oil level indicator of claim 2, wherein said vent portion is cylindrical and said valve seat is bowl-shaped; the outer diameter of the vent portion is smaller than the maximum outer diameter of the valve seat.
8. The novel oil level gauge according to claim 1, wherein said measuring tube portion includes a tube body and a float; the float is located within the tube.
9. The new fuel level sender of claim 8, wherein said tube body is provided with a viewing window.
10. The novel oil level indicator according to claim 8, wherein the outer wall of the tube body is provided with a locking projection projecting in the outer direction of the tube body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120877872.1U CN214667138U (en) | 2021-04-26 | 2021-04-26 | Novel oil level indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120877872.1U CN214667138U (en) | 2021-04-26 | 2021-04-26 | Novel oil level indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214667138U true CN214667138U (en) | 2021-11-09 |
Family
ID=78471976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120877872.1U Active CN214667138U (en) | 2021-04-26 | 2021-04-26 | Novel oil level indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214667138U (en) |
-
2021
- 2021-04-26 CN CN202120877872.1U patent/CN214667138U/en active Active
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