CN204594751U - Transformer methane gas collector - Google Patents

Abstract

A gas extraction device for transformer gas belongs to the technical field of gas extraction devices, and in particular relates to a gas extraction device for transformer gas. The utility model provides a safe and convenient transformer gas gas extraction device. The utility model comprises a vacuum-pumping air-collecting bag. The main points of the structure are a vertical rubber-sealed air hole on one side of the vacuum-pumping air-collecting bag. The upper horizontal tube of the hose is provided with an upper check valve, and the middle horizontal tube of the F-shaped rubber hose is provided with a lower check valve; the outer end of the upper horizontal tube of the F-shaped rubber hose is provided with an upper connecting nut. The outer end of the horizontal tube in the middle of the rubber hose is provided with a lower connecting nut; the middle and lower part of the F-shaped rubber hose side of the vacuum bag is vertically arranged with scale bars.

Description

Transformer gas gas extraction device

technical field

The utility model belongs to the technical field of gas extraction devices, in particular to a gas extraction device for transformer gas.

Background technique

Transformer gas collection boxes are generally installed and used on site. When the transformer is newly installed and put into operation, oil replenishment or internal failure, gas will be generated. The operation and maintenance personnel need to take gas from the gas collection valve of the gas collection box on site, and send it for inspection and testing to identify the composition and content of the gas.

Due to the change of the gas-taking structure of the gas-collecting box, the original transformer gas-taking device can no longer meet the needs of the work. For this reason, the development of a gas extraction device that is effectively connected to the gas extraction interface of the gas collection box has facilitated the operation and maintenance personnel to collect the internal gas when the transformer fails, thereby improving the work efficiency of the operation and maintenance personnel and avoiding the need for personnel in the previous gas extraction process. Danger of falling from high altitude and electric shock.

In view of the above-mentioned defects in the prior art, it is necessary to provide a transformer gas extraction device that is safe, fast, easy to operate and convenient to carry.

Contents of the invention

The utility model aims at the above problems and provides a safe and easy-to-use transformer gas gas extraction device.

In order to achieve the above purpose, the utility model adopts the following technical scheme. The utility model includes a vacuumized air collection bag. The upper end of one side of the vacuumized air collection bag is provided with a vertical rubber sealing air hole, and the other side of the vacuumized air collection bag is The upper end of the side is provided with an F-shaped rubber hose, the upper end of the F-shaped rubber hose is provided with an upper check valve, and the middle horizontal tube of the F-shaped rubber hose is provided with a lower check valve; the F-shaped rubber hose The outer end of the upper horizontal tube is provided with an upper connecting nut, and the outer end of the middle horizontal tube of the F-shaped rubber hose is provided with a lower connecting nut; the upper middle and lower part of the F-shaped rubber hose side of the vacuum collection bag is vertically arranged with scale bars .

As a preferred solution, the lower connecting nut described in the utility model is connected to the upper end of the gas-taking pipe of the transformer gas-collecting box, the lower end of the gas-taking pipe of the transformer gas-collecting box is connected to one side of the upper end of the transformer gas-collecting box, and the other side of the upper end of the transformer gas-collecting box The side is connected to the lower end of the air intake pipe of the transformer gas collection box, and the upper end of the air intake pipe of the transformer gas collection box is connected to the air intake port of the gas relay of the transformer gas collection box; The middle part of the lower end of the gas collection box is connected with the upper end of the oil discharge pipe of the transformer gas collection box, and the lower end of the oil discharge pipe of the transformer gas collection box is provided with an oil discharge valve of the gas collection box.

As another preferred solution, the air intake pipe of the transformer gas collection box described in the utility model is an inverted L-shaped air intake pipe, the upper end of the inverted L-shaped air intake pipe is connected to the lower connecting nut, and the inverted L-shaped air intake pipe The lower end of the standpipe is connected to one side of the upper end of the transformer gas collection box, and the gas collection valve of the gas collection box is arranged on the vertical pipe of the inverted L-shaped gas collection pipe.

As another preferred solution, the upper connecting nut of the utility model is connected with the upper end of the gas outlet box of the gas relay, the lower end of the gas outlet box of the gas relay is connected with the gas inlet at the upper end of the gas relay, and the gas outlet box of the gas relay is provided with a gas relay valve.

As another preferred solution, the gas outlet box of the gas relay of the utility model is an inverted L-shaped air outlet box, and the outer end of the upper lateral part of the inverted L-shaped air outlet box is connected with the upper connecting nut, and the vertical part of the inverted L-shaped air outlet box The lower end of the Buchholz relay is connected to the gas intake port at the upper end, and the gas intake valve of the Buchholz relay is arranged on the vertical part of the inverted L-shaped gas outlet box.

As another preferred solution, the vacuumized air-collecting bag described in the utility model adopts a rubber air-collecting bag.

Secondly, the inner diameter of the middle horizontal tube of the F-shaped rubber hose described in the utility model is 1.6cm, and the inner diameter of the upper end horizontal tube of the F-shaped rubber hose is 0.8cm.

In addition, the volume of the vacuumized air-collecting bag described in the utility model is 30-50ml.

The utility model has beneficial effects.

The check valve of the present invention can ensure that when gas is collected, the gas can only enter the gas collection bag in one direction, and when the connecting hose of the gas collection bag is separated from the gas collection box (or the gas inlet of the gas relay), the collected gas can be prevented from leaking.

The surface of the air-collecting bag of the present invention is provided with a scale bar. When the gas generated inside the transformer enters the vacuumized air-collecting bag through the gas-taking conduit, the air-collecting bag expands, and the scale bar will display the volume of the collected gas; it prompts the on-site personnel to observe The volume of gas collected.

In the present invention, the air-taking hole and the air-collecting bag are integrated, and rubber is used to seal the air-taking hole. When the gas collection bag is delivered to the laboratory, the test personnel can extract the collected gas with an infusion set with a needle.

The invention has the advantages of simple structure, convenient portability and flexible operation, which is convenient for on-site operation and maintenance personnel to operate, ensures personal safety and improves work efficiency.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. The scope of protection of the utility model is not limited to the expression of the following content.

Fig. 1 is a schematic diagram of the structure of the connection gas collecting box of the utility model.

Fig. 2 is a structural schematic diagram of the gas relay connected to the transformer body of the utility model.

In the figure, 1: transformer gas collection box; 2: gas collection box oil discharge valve; 3: gas collection box gas intake valve; 4: gas relay; 5: gas relay gas intake valve; 6: vacuumized gas collection bag; 7 : air intake hole; 8: rubber hose; 9: lower connecting nut; 10: lower check valve; 11: scale bar; 12: air intake pipe of transformer gas collection box; 13: air intake pipe of transformer gas collection box; 14: The oil discharge pipe of the transformer gas collection box; 15: the gas outlet box of the gas relay.

Detailed ways

As shown in the figure, the utility model includes a vacuumized air-collecting bag. Its structural points are provided with a vertical rubber sealing air hole at the upper end of one side of the vacuumized air-collecting bag, and an F-shaped rubber soft hole is arranged at the upper end of the other side of the vacuumized air-collecting bag. The upper end of the F-shaped rubber hose is provided with an upper check valve, and the middle of the F-shaped rubber hose is provided with a lower check valve; the outer end of the upper end of the F-shaped rubber hose is provided with an upper check valve. Connecting nuts, the outer end of the middle horizontal tube of the F-shaped rubber hose is provided with a lower connecting nut; the middle and lower part of the F-shaped rubber hose side on the vacuum bag is vertically arranged with scale bars.

The lower connecting nut is connected with the upper end of the air intake pipe of the transformer air collection box, the lower end of the air intake pipe of the transformer air collection box is connected with one side of the upper end of the transformer air collection box, and the other side of the upper end of the transformer air collection box is connected with the air intake pipe of the transformer air collection box The lower end is connected, the upper end of the air inlet pipe of the transformer gas collecting box is connected with the gas inlet of the gas relay of the transformer gas collecting box; The upper end of the oil discharge pipe of the gas box is connected, and the lower end of the oil discharge pipe of the transformer gas collection box is provided with an oil discharge valve of the gas collection box.

The air intake pipe of the transformer gas collection box is an inverted L-shaped air intake pipe, the upper end of the inverted L-shaped air intake pipe is connected to the lower connection nut, and the vertical tube lower end of the inverted L-shaped air intake pipe is connected to the transformer for gas collection. One side of the upper end of the box is connected, and the air intake valve of the gas collection box is arranged on the vertical pipe of the inverted L-shaped air intake pipe.

The upper connecting nut is connected with the upper end of the gas outlet box of the gas relay, the lower end of the gas outlet box of the gas relay is connected with the gas intake port at the upper end of the gas relay, and the gas outlet box of the gas relay is provided with a gas intake valve for the gas relay.

The air outlet box of the gas relay is an inverted L-shaped air outlet box, the outer end of the upper lateral part of the inverted L-shaped air outlet box is connected with the upper connecting nut, and the lower end of the vertical part of the inverted L-shaped air outlet box is connected with the upper end of the gas relay. The air ports are connected, and the air intake valve of the gas relay is arranged on the vertical part of the inverted L-shaped air outlet box.

The vacuumized air-collecting bag adopts a rubber air-collecting bag.

The inner diameter of the middle horizontal tube of the F-shaped rubber hose is 1.6 cm, and the inner diameter of the upper horizontal tube of the F-shaped rubber hose is 0.8 cm.

The volume of the vacuum bag is 30-50ml.

As shown in Figure 1, during the operation of the transformer, when a fault occurs (including the internal fault of the transformer, the fault outside the through zone), or when the transformer is newly put into operation, oil filling, oil filtering, etc., gas will be generated inside the transformer. . The gas will be connected to the transformer gas collecting box through the inlet pipe of the transformer gas collecting box at the lower end of the Buchholz relay. The operation and maintenance attendant takes oil samples and gas from the transformer, opens the oil discharge valve of the lower gas collection box of the transformer gas collection box, and releases the transformer oil in the gas collection box through the oil discharge valve of the gas collection box. When there is gas in the gas collection box , close the oil discharge valve of the gas collection box; then fasten the lower connecting nut to the gas pipe of the transformer gas collection box on the upper part of the gas collection box, open the gas collection valve to take gas, after the gas collection is completed, close the gas collection valve, remove the Lower the connecting nut and send it to the laboratory. The test personnel took gas samples from the gas holes for testing, and tested the gas content to identify the type of internal fault of the transformer.

As shown in Figure 2, the air intake part is in the gas relay of the transformer body. During the operation of the transformer, when a fault occurs (including the internal fault of the transformer and the through fault outside the zone), or when the transformer is newly put into operation, oil filling, oil filtering, etc., gas will be generated inside the transformer. The operation and maintenance attendant should immediately take oil samples and gas from the transformer. During operation, open the gas intake valve of the gas relay and release the transformer oil in the gas relay. When the gas relay shows gas, close the gas intake valve of the gas relay; connect the upper connecting nut with the gas outlet box of the gas relay, and open the gas intake valve of the gas relay Take gas. After the gas is taken, close the gas valve of the gas relay, remove the upper connecting nut, and send it to the laboratory. The testers took gas samples from the air holes for testing, and tested the content of gas to identify the type of internal fault of the transformer.

It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solutions described in the embodiments of the utility model. Those of ordinary skill in the art should understand that the utility model can still be Modifications or equivalent replacements are carried out to achieve the same technical effect; as long as the needs of use are met, they are all within the protection scope of the present utility model.

Claims (8)

1. Gas extraction device for transformer gas, including a vacuum collection bag, characterized in that the upper end of one side of the vacuum collection bag is provided with a vertical rubber sealing air intake hole, and the upper end of the other side of the vacuum collection bag is provided with an F-shaped rubber Hose, the upper end of the F-shaped rubber hose is provided with an upper check valve, the middle of the F-shaped rubber hose is provided with a lower check valve; the outer end of the upper end of the F-shaped rubber hose is provided with a The upper connecting nut, the outer end of the middle horizontal tube of the F-shaped rubber hose is provided with the lower connecting nut; the middle and lower part of the side of the F-shaped rubber hose on the vacuum bag is vertically arranged with scale bars. 2. The gas extraction device for transformer gas according to claim 1, characterized in that the lower connecting nut is connected to the upper end of the gas extraction pipe of the transformer gas collection box, and the lower end of the gas extraction pipe of the transformer gas collection box is connected to the upper end of the transformer gas collection box The other side of the upper end of the transformer gas collection box is connected with the lower end of the air intake pipe of the transformer gas collection box, and the upper end of the air intake pipe of the transformer gas collection box is connected with the gas intake port of the gas relay of the transformer gas collection box; the air intake pipe of the transformer gas collection box is set There is an air intake valve for the gas collection box, the middle part of the lower end of the transformer gas collection box is connected to the upper end of the oil discharge pipe of the transformer gas collection box, and the lower end of the oil discharge pipe of the transformer gas collection box is provided with an oil discharge valve for the gas collection box. 3. According to the described gas extraction device for transformer gas according to claim 2, it is characterized in that the gas extraction pipe of the transformer gas collection box is an inverted L-shaped air extraction pipe, and the upper end of the inverted L-shaped air extraction pipe is connected to the lower horizontal pipe outer end. The nuts are connected, and the lower end of the vertical pipe of the inverted L-shaped air intake pipe is connected with the upper side of the transformer gas collection box, and the air intake valve of the gas collection box is arranged on the vertical pipe of the inverted L-shaped air intake pipe. 4. According to claim 1, the transformer gas intake device is characterized in that the upper connection nut is connected to the upper end of the gas outlet box of the gas relay, the lower end of the gas outlet box of the gas relay is connected to the gas intake port on the upper end of the gas relay, and the gas outlet of the gas relay is The gas relay gas intake valve is arranged on the box. 5. The transformer gas extraction device according to claim 4, characterized in that the gas outlet box of the gas relay is an inverted L-shaped gas outlet box, and the outer end of the upper lateral part of the inverted L-shaped gas outlet box is connected with the upper connecting nut , the lower end of the vertical part of the inverted L-shaped gas outlet box is connected to the gas intake port at the upper end of the gas relay, and the gas intake valve of the gas relay is arranged on the vertical part of the inverted L-shaped gas outlet box. 6. The transformer gas extraction device according to claim 1, characterized in that the vacuumized air collection bag is a rubber air collection bag. 7. The transformer gas intake device according to claim 1, characterized in that the inner diameter of the middle horizontal tube of the F-shaped rubber hose is 1.6 cm, and the inner diameter of the upper horizontal tube of the F-shaped rubber hose is 0.8 cm. 8. The transformer gas extraction device according to claim 1, characterized in that the volume of the vacuum bag is 30-50ml.