Device for monitoring exhaust and oil removal of transformer oil sample preparation oil cylinder and preventing oil from entering gas path

Abstract

The utility model relates to a device for monitoring exhaust and oil removal of a transformer oil sample preparation oil cylinder and preventing oil from entering a gas path, and aims to solve the technical problems that whether gas in the oil cylinder is completely exhausted or not cannot be effectively judged when the oil cylinder exhausts in the prior art and the transformer oil may be directly exhausted into the gas path when the oil cylinder exhausts. Comprising a gas well, a gas well lower cover arranged at the lower end of the gas well and a gas well upper cover arranged at the upper end of the gas well, the gas well lower cover is provided with a gas inlet used for being connected with an oil cylinder, the gas inlet is communicated with the gas well, the gas well upper cover is provided with an exhaust port, and the exhaust port is communicated with the gas well and the outside. A monitoring sensor used for monitoring the oil inlet condition in the gas well is arranged in the gas well.

Description

Technical Field

[0001] The present application relates to the technical field of transformer oil online monitoring, and in particular to a device for monitoring the exhaust and oil removal of a transformer oil sample preparation cylinder and preventing oil from entering an air path. Background Art

[0002] The existing preparation device of standard oil sample of dissolved gas in transformer oil generally sets a sealing piston assembly in the oil distribution chamber of the oil distribution cylinder, forms a channel in the sealing piston self-test, and realizes bubbling degassing through the channel. The oil sample is degassed by combining bubbling degassing and vacuum degassing, thereby achieving the purpose of improving degassing efficiency and shortening the time required for oil and gas dissolution to reach equilibrium.

[0003] However, the existing preparation device for standard oil samples of dissolved gas in transformer oil cannot effectively determine whether the gas in the oil cylinder is completely discharged when the oil cylinder is vented, and the transformer oil may be directly discharged into the air path when the oil cylinder is vented, affecting the service life of other electrical components. Utility Model Content

[0004] The present application provides a device for preparing transformer oil samples, monitoring oil cylinder exhaust and oil removal, and preventing oil from entering the gas path, so as to solve the technical problems in the prior art that it is impossible to effectively judge whether the gas in the oil cylinder is completely exhausted when the oil cylinder is exhausted, and that the transformer oil may be directly discharged into the gas path when the oil cylinder is exhausted.

[0005] In order to achieve the above-mentioned objectives, the present application provides a device for transformer oil sample preparation, oil cylinder exhaust and oil removal monitoring and preventing oil from entering the gas path, comprising a gas well, a gas well lower cover arranged at the lower end of the gas well and a gas well upper cover arranged at the upper end of the gas well, the gas well lower cover being provided with an air inlet for connecting to the oil cylinder, the air inlet being connected to the gas well, the gas well upper cover being provided with an exhaust port, the exhaust port being connected to the gas well and the outside world, and a monitoring sensor for monitoring the oil inflow situation in the gas well being provided in the gas well.

[0006] Preferably, the monitoring sensor is a liquid level sensor.

[0007] Preferably, the gas well is a transparent gas well or the gas well has a transparent liquid level observation portion.

[0008] Preferably, the gas well is made of transparent acrylic material.

[0009] Preferably, the exhaust port is provided with an exhaust valve.

[0010] Preferably, the gas well upper cover is provided with a gas outlet.

[0011] Preferably, it also includes a mounting seat, and the gas well lower cover is fixed on the mounting seat.

[0012] Preferably, the mounting seat is an I-shaped mounting seat.

[0013] Preferably, a bolt mounting hole is provided at the bottom of the X-shaped mounting seat.

[0014] Preferably, the monitoring sensor is arranged on the lower cover of the gas well, and the monitoring end of the monitoring sensor passes through the lower cover of the gas well from below the lower cover of the gas well and enters into the gas well.

[0015] According to the above content, the beneficial effects of this application are:

[0016] By setting up a gas well and a monitoring sensor, the purpose of monitoring the exhaust and oil removal of the transformer oil sample preparation cylinder and preventing oil from entering the gas path can be achieved. Specifically, when in use, the air inlet of the gas well is connected to the transformer oil sample preparation cylinder, and the oil cylinder is exhausted through the exhaust port of the gas well. When the monitoring sensor detects the liquid in the gas well, it can be known that the gas in the cylinder has been completely exhausted. At the same time, the gas well acts as a buffer to prevent oil from directly entering other gas paths through the gas outlet. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1 is a side view of an embodiment of the present application;

[0019] Figure 2 It is a front view of an embodiment of the present application;

[0020] Figure 3 is a cross-sectional view of an embodiment of the present application;

[0021] Figure 4 It is a top view of an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed in the present application, some changes such as design, manufacturing or production based on the technical contents disclosed in the present application are only conventional technical means, and should not be understood as insufficient contents disclosed in the present application.

[0023] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0024] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantity limitation, and may indicate the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application means greater than or equal to two. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third" and the like involved in the present application are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0025] See also Figures 1 to 4 The device for preparing oil sample for transformer oil cylinder exhaust and oil removal monitoring and preventing oil from entering the gas path in the present application mainly comprises a mounting seat 5. In the present embodiment, the mounting seat 5 is preferably a "J"-shaped mounting seat. A bolt mounting hole 6 for fixing on other substrates is provided at the bottom of the "J"-shaped mounting seat. A gas well cover 4 is fixedly connected to the top of the mounting seat 5. A gas well 3 is provided on the top surface of the gas well cover 4. A gas well 3 is provided on the upper end of the gas well 3. The gas well lower cover 2 and the gas well upper cover 4 are connected at four corners by connecting rods 7 to seal and clamp the gas well 3. An air inlet 21 for connecting with the oil cylinder is provided on the side of the gas well lower cover 2. The air inlet 21 is connected to the inner cavity of the gas well 3. After the air inlet of the gas well lower cover 2 is connected to the oil cylinder, the piston in the oil cylinder moves upward to exhaust gas, and gas and oil enter the gas well 3 from the gas well lower cover 2. The gas well upper cover 4 is provided with an exhaust port 41 and an exhaust port 42. The exhaust port 41 and the exhaust port 42 are both connected to the gas well 3 and the outside world.

[0026] A monitoring sensor 1 is provided in the gas well 3 to monitor whether there is oil in the gas well 3. The liquid condition in the gas well can be monitored by the monitoring sensor 1. The preferred monitoring sensor 1 in this embodiment is a liquid level sensor to monitor the liquid level of the inlet oil. When the liquid level sensor detects the liquid level, it can be known that the gas in the oil cylinder has been completely discharged.

[0027] In this embodiment, the monitoring sensor 1 is preferably disposed on the gas well lower cover 2 , wherein the monitoring end of the monitoring sensor 1 passes through the gas well lower cover 2 from below the gas well lower cover 2 and enters into the gas well 3 .

[0028] In order to facilitate observation of the liquid level in the gas well and prevent a large amount of oil from entering the gas well and other gas paths due to misoperation, the gas well 3 can be a transparent gas well or the gas well 3 has a transparent liquid level observation portion. In this embodiment, the gas well 3 is preferably a fully transparent gas well made of transparent acrylic material.

[0029] In this embodiment, an exhaust valve is correspondingly provided at the exhaust port, and when the oil cylinder is exhausted, the exhaust valve can be opened to discharge excess gas.

[0030] The working process of the device for preparing transformer oil samples, monitoring cylinder exhaust and oil removal, and preventing oil from entering the gas path in this embodiment is as follows: when the oil cylinder is exhausting, the exhaust valve of the exhaust port 41 and the air inlet valve of the air inlet 21 are opened, the air outlet 42 is closed, and the gas is discharged through the gas well 3 with excess oil. When the liquid level sensor detects the liquid level, the exhaust is stopped; when the gas path is to be circulated, the exhaust port 41 is closed, the gas outlet 42 is opened, and the gas path is circulated through the gas well 3. The gas well 3 acts as a buffer to prevent oil from directly entering other gas paths through the gas outlet.

[0031] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A device for preparing transformer oil samples, monitoring oil cylinder exhaust and oil removal, and preventing oil from entering the gas path, characterized by: The invention comprises a gas well (3), a gas well lower cover (2) arranged at the lower end of the gas well (3), and a gas well upper cover (4) arranged at the upper end of the gas well (3), wherein the gas well lower cover (2) is provided with an air inlet (21) for connecting to an oil cylinder, the air inlet (21) being connected to the gas well (3), the gas well upper cover (4) is provided with an air outlet (41), the air outlet (41) being connected to the gas well (3) and the outside, and a monitoring sensor (1) for monitoring the oil inflow condition in the gas well (3) is provided in the gas well (3).

2. The device for monitoring the exhaust and oil removal of the oil cylinder and preventing oil from entering the gas path of the transformer oil sample preparation according to claim 1 is characterized by: The monitoring sensor (1) is a liquid level sensor.

3. The device for monitoring the exhaust and oil removal of the oil cylinder and preventing oil from entering the gas path of the transformer oil sample preparation according to claim 1 is characterized by: The gas well (3) is a transparent gas well or the gas well (3) has a transparent liquid level observation portion.

4. The device for monitoring the exhaust and oil removal of the oil cylinder and preventing oil from entering the gas path of the transformer oil sample preparation according to claim 3 is characterized by: The gas well (3) is made of a transparent acrylic material.

5. The device for monitoring the exhaust and oil removal of the oil cylinder and preventing oil from entering the gas path of the transformer oil sample preparation according to any one of claims 1 to 4, characterized in that: The exhaust port is provided with an exhaust valve.

6. The device for monitoring the exhaust and oil removal of the oil cylinder and preventing oil from entering the gas path of the transformer oil sample preparation according to any one of claims 1 to 4, characterized in that: The gas well upper cover (4) is provided with a gas outlet.

7. The device for monitoring the exhaust and oil removal of the oil cylinder and preventing oil from entering the gas path of the transformer oil sample preparation according to any one of claims 1 to 4, characterized in that: It also comprises a mounting seat (5), and the gas well lower cover (2) is fixed on the mounting seat (5).

8. The device for monitoring the exhaust and oil removal of the oil cylinder and preventing oil from entering the gas path of the transformer oil sample preparation according to claim 7 is characterized by: The mounting seat (5) is a "X"-shaped mounting seat.

9. The device for monitoring the exhaust and oil removal of the oil cylinder and preventing oil from entering the gas path of the transformer oil sample preparation according to claim 8 is characterized by: A bolt mounting hole (6) is provided at the bottom of the X-shaped mounting seat.

10. The device for monitoring the exhaust and oil removal of the oil cylinder and preventing oil from entering the gas path of the transformer oil sample preparation according to any one of claims 1 to 4, characterized in that: The monitoring sensor (1) is arranged on the gas well lower cover (2), and the monitoring end of the monitoring sensor (1) passes through the gas well lower cover (2) from below the gas well lower cover (2) and enters the gas well (3).

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