High-precision transformer oil chromatography on-line monitoring equipment

Abstract

The utility model discloses high-precision transformer oil chromatography on-line monitoring equipment, which relates to the technical field of transformer oil chromatography on-line detection appliances, and comprises a cabinet body, the cabinet body is divided into two side areas, and one side area of the cabinet body is divided into an upper layer structure, a middle layer structure and a lower layer structure; a gear pump is installed on the bottom layer of an inner cavity of an area on one side of the cabinet body, an oil-gas separation box is installed at one end of the gear pump, an oil-gas permeable membrane is installed in the oil-gas separation box, and the oil-gas permeable membrane divides the oil-gas separation box into an oil cavity and a gas cavity. The effects of quick mounting and multi-tank placement are achieved, the problems that a traditional nitrogen tank is inconvenient to mount and dismount due to frequent use and the mounting number is small are solved, and the rapidness and durability of nitrogen tank replacement are improved; through cooperation between the gas analyzer and the data processing equipment, large-scale patrol of personnel is not needed, data deviation caused by human factors is reduced, and the real-time performance of monitoring is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer oil chromatography on -line inspection tool technical field, especially in a kind of high-precision transformer oil chromatography on -line monitoring equipment. BACKGROUND

[0002] In power system, transformer as core power transmission and transformation equipment, its internal insulation oil state directly influences equipment operation reliability;

[0003] Two big technical defects exist in the carrier gas system of traditional monitoring equipment: inconvenient installation and disassembly: the traditional installation mode is mostly dependent on bolt fastening or buckle fixing, and when replacing nitrogen tank, special tools are needed to disassemble one by one, and the time consumption of single replacement is up to 30 minutes or more; Limited installation quantity: limited by cabinet space layout and fixed structure, a single device can usually install only 1-2 nitrogen tanks, which cannot meet the carrier gas consumption demand of long-time continuous monitoring, and frequent replacement not only increases operation and maintenance cost, but also may cause data loss and real-time loss due to interruption of monitoring during tank replacement; Wastage of human resources: for monitoring of multiple devices in a transformer substation, a large amount of manpower needs to be invested for repetitive data collection, and errors are easy to occur in manual recording, so the data integrity and accuracy are difficult to guarantee. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the shortcomings in the prior art and provides a high-precision transformer oil chromatography on-line monitoring equipment.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-precision transformer oil chromatography on-line monitoring equipment, comprising a cabinet, the cabinet is divided into two side areas, and the cabinet one side area is divided into upper, middle and lower three-layer structure; a gear pump is installed in the inner cavity of the cabinet one side area, an oil-gas separation tank is installed at one end of the gear pump, an oil-gas permeation membrane is installed in the oil-gas separation tank, and the oil-gas permeation membrane divides the oil-gas separation tank into an oil chamber and a gas chamber.

[0006] Preferably, a connector is installed in the middle layer of the inner cavity of the cabinet one side, a chromatography tube is installed at the other end of the connector, and a gas analyzer is installed on the same side of the chromatography tube.

[0007] Preferably, a data processing device is installed on the upper layer of the cabinet one side.

[0008] Preferably, a plurality of sliding grooves are opened in the inner cavity of the other side area of the cabinet, a sliding table is installed in the plurality of sliding grooves, a plurality of mounting racks are vertically installed in the sliding table, a nitrogen tank is installed in the mounting rack, and the nitrogen tank is fixed by an internal hexagonal screw rod.

[0009] Preferably, the oil chamber of the oil-gas separator is installed to one end of the gear pump via an oil inlet pipe on one side, the gear pump is connected to the transformer oil tank via a feed pipe, and the oil chamber of the oil-gas separator is connected to the transformer oil tank on the same side via a return oil pipe.

[0010] Preferably, the outer side of the oil-gas separator's gas chamber is connected to a connector via two gas outlet pipes. One side of the connector is connected to a nitrogen tank via a nitrogen pipe, and the other side of the connector is connected to a chromatographic tube via an inspection pipe. The chromatographic tube is connected to a gas analyzer via a connecting pipe on the same side, and an exhaust pipe is installed on the same side of the gas analyzer.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves rapid installation and multi-tank placement through the cooperation between the cabinet, sliding table, mounting bracket and internal hexagonal screw, solving the problems of inconvenient installation and disassembly and limited installation quantity of traditional nitrogen tanks due to frequent use, and improving the speed and durability of nitrogen tank replacement; through the cooperation between the gas analyzer and data processing equipment, it achieves the elimination of large-scale personnel inspections and reduces data deviation caused by human factors, solving the problem that traditional transformer oil chromatography monitoring requires technicians to conduct inspections and records, which makes it impossible to monitor the actual situation, and improving the real-time performance of monitoring. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0014] Figure 2 The present utility model proposes Figure 1 Enlarged schematic diagram of section A in the middle;

[0015] Figure 3 This is a schematic diagram of the reaction vessel and stirring motor proposed in this utility model;

[0016] Figure 4 This is a partial cross-sectional view of the structure proposed in this utility model.

[0017] The following items are listed in the diagram: 1. Cabinet; 2. Gear pump; 3. Oil-gas separator; 4. Connector; 5. Chromatography tube; 6. Gas analyzer; 7. Data processing equipment; 8. Sliding stage; 9. Nitrogen tank; 10. Socket hex screw; 11. Oil-gas permeation membrane; 12. Mounting bracket. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example: See Figures 1-4 This utility model discloses a high-precision online transformer oil chromatography monitoring device, comprising a cabinet 1 for easy installation and inspection of the equipment; the cabinet 1 is divided into two sides, and one side of the cabinet 1 is further divided into three layers: upper, middle, and lower; a gear pump 2 is installed at the bottom of the cavity of one side of the cabinet 1, which facilitates pumping transformer oil into an oil-gas separator 3; the oil-gas separator 3 is installed at one end of the gear pump 2, and an oil-gas permeation membrane 11 is installed inside the oil-gas separator 3, which facilitates the separation of the transformer oil in the oil-gas separator 3 into liquid and gas states; the oil-gas permeation membrane 11... 1. The oil-gas separator 3 is divided into an oil chamber and a gas chamber. A connector 4 is installed in the middle layer of one side of the inner cavity of the cabinet 1. The connector 4 facilitates the connection between the nitrogen in the nitrogen tank 9 and the mixed gas in the oil-gas separator 3. A chromatographic tube 5 is installed at the other end of the connector 4. The chromatographic tube 5 facilitates the inspection of the gas entering through the connector 4. A gas analyzer 6 is installed on the same side as the chromatographic tube 5. The gas analyzer 6 facilitates the inspection of the distribution coefficient of different gases in the chromatographic tube 5. A data processing device 7 is installed on the upper layer of one side of the cabinet 1. The data processing device 7 facilitates the transmission of the detection data of the gas analyzer 6 to the cloud.

[0020] In this utility model, multiple sliding grooves are opened in the cavity of the other side of the cabinet 1, and sliding tables 8 are installed in the multiple sliding grooves. Nitrogen tanks 9 are easily installed through the sliding tables 8. Multiple mounting brackets 12 are vertically installed in the sliding tables 8, and nitrogen tanks are easily installed through the mounting brackets 12. Nitrogen tanks 9 are installed in the mounting brackets 12 and are fixed by internal hexagonal screws 10. The oil chamber of the oil-gas separator 3 is installed to one end of the gear pump 2 through an oil inlet pipe on one side. The gear pump 2 is connected to the transformer oil tank through a feed pipe, and the oil chamber of the oil-gas separator 3 is connected to the transformer oil tank on the same side through a return oil pipe. The outer side of the gas chamber of the oil-gas separator 3 is connected to the connector 4 through two gas outlet pipes. One side of the connector 4 is connected to the nitrogen tank 9 through a nitrogen pipe, and the other side of the connector 4 is connected to the chromatographic tube 5 through an inspection pipe. The chromatographic tube 5 is connected to the gas analyzer 6 on the same side through a connecting pipe. An exhaust pipe is installed on the same side of the gas analyzer 6.

[0021] Working principle: When using this utility model, open the sliding table 8 on the other side of the cabinet 1 to check whether the nitrogen pipe 9 has normal pressure and check whether the internal hexagon screw 10 is loose. After the inspection is completed, the equipment is powered on and the gear pump 2 is started to pump the oil in the transformer oil tank into the oil-gas separation box 3. The transformer oil in the oil-gas separation box 3 is separated into gas-liquid two phases through the oil-gas permeation membrane 11. The gas part reaches the connector 4 through the gas outlet pipe opened by the oil-gas separation box 3. At the same time, the nitrogen in the nitrogen tank 9 is connected to the connector 4 through the nitrogen pipe. The two mixed gases are introduced into the chromatographic tube 5 through the inspection tube at the other end of the connector 4. Different gas components have different distribution coefficients in the stationary phase (chromatographic column packing) and the mobile phase (carrier gas), resulting in different migration speeds in the column, thereby achieving the separation of each component. The separated gases enter the gas analyzer 6 for gas analysis. The gas analyzer 6 transmits the analysis data to the data processing device 7, and the data processing device 7 sends the real-time data to the cloud.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-precision online transformer oil chromatography monitoring device, comprising a cabinet (1), characterized in that: The cabinet (1) is divided into two sides, and one side of the cabinet (1) is divided into three layers: upper, middle and lower. A gear pump (2) is installed in the bottom cavity of one side of the cabinet (1). An oil-gas separator (3) is installed at one end of the gear pump (2). An oil-gas permeation membrane (11) is installed inside the oil-gas separator (3). The oil-gas permeation membrane (11) divides the oil-gas separator (3) into an oil chamber and a gas chamber.

2. The high-precision online monitoring device for transformer oil chromatography according to claim 1, characterized in that: A connector (4) is installed in the middle layer of the inner cavity on one side of the cabinet (1), and a chromatographic tube (5) is installed at the other end of the connector (4). A gas analyzer (6) is installed on the same side of the chromatographic tube (5).

3. The high-precision online monitoring device for transformer oil chromatography according to claim 1, characterized in that: A data processing device (7) is installed on the upper side of one side of the cabinet (1).

4. The high-precision online monitoring device for transformer oil chromatography according to claim 1, characterized in that: The cabinet (1) has multiple sliding grooves in the cavity on the other side, and multiple sliding tables (8) are installed in the multiple sliding grooves. Multiple mounting brackets (12) are vertically installed in the sliding tables (8), and nitrogen tanks (9) are installed in the mounting brackets (12). The nitrogen tanks (9) are fixed by internal hexagonal screws (10).

5. The high-precision online monitoring device for transformer oil chromatography according to claim 3, characterized in that: The oil chamber of the oil-gas separator (3) is installed to one end of the gear pump (2) through an oil inlet pipe on one side. The gear pump (2) is connected to the transformer oil tank through a feed pipe, and the oil chamber of the oil-gas separator (3) is connected to the transformer oil tank on the same side through a return oil pipe.

6. The high-precision online monitoring device for transformer oil chromatography according to claim 3, characterized in that: The outer side of the gas chamber of the oil-gas separator (3) is connected to the connector (4) through two gas outlet pipes. One side of the connector (4) is connected to the nitrogen tank (9) through a nitrogen pipe, and the other side of the connector (4) is connected to the chromatographic tube (5) through an inspection tube. The chromatographic tube (5) is connected to the gas analyzer (6) through a connecting pipe on the same side. The gas analyzer (6) is equipped with an exhaust pipe on the same side.

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