Harvesting and collecting integrated transformer gas collecting device

Abstract

A collecting and collecting integrated transformer gas collecting device relates to the technical field of power production and comprises a gas collecting box, a gas storage tank and a temporary storage tank, the gas collecting box is connected with a transformer to collect gas generated in the transformer, and the top of the gas collecting box is provided with a deflation valve capable of exhausting gas outwards; the gas storage tank is connected with the deflation valve to collect gas therein; the temporary storage tank is detachably arranged between the deflation valve and the gas storage tank, gas enters the gas storage tank from the deflation valve through the temporary storage tank, the temporary storage tank comprises a first tank body, a first gas inlet and a first piston rod, a through hole is formed in the first piston rod in an up-down penetrating mode, and the bottom of the through hole is communicated with the interior of the first tank body. After sampling is conducted through the gas storage tank, oil enters the first tank body when gas is emptied, the deflation valve is closed, the through hole is sealed, and the first piston rod is lifted upwards to suck the oil into the first tank body. According to the device, gas sample collection is rapid and convenient, gas sample pollution is not likely to be caused, overflowing oil can be collected through the temporary storage tank to avoid environment pollution, and the device has high practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power production, in particular to a transformer gas collecting device integrated with gas collection. Background Art

[0002] If there is an internal fault during the operation of the transformer, gas will be generated, or the oil flow will be changed, which will drive the gas relay to operate and send out an alarm or tripping gas action signal. When only a small amount of gas is generated, the gas relay will not operate, but the gas will enter the gas collecting box through the copper conduit. The health of the transformer and the cause of the fault can be determined by taking gas samples from the gas collecting box for chromatographic analysis. At present, the gas cylinder is generally installed on the venting valve. After taking the gas sample, the excess gas in the relay is released. The operation process of taking the gas sample is relatively cumbersome and may be improperly operated, causing the gas sample to contact the outside air. At the same time, when the gas is vented to the end, it will cause oil overflow, pollute the gas collecting box environment, and affect the next gas collection, which needs to be improved. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a transformer gas collecting device with integrated gas collection.

[0004] The utility model adopts the following technical solutions:

[0005] A transformer gas collecting device integrated with gas collection includes a gas collecting box, a gas storage tank and a temporary storage tank.

[0006] The gas collecting box is connected to the transformer to collect the gas generated in the transformer, and a gas release valve is provided on the top of the gas collecting box to discharge the gas to the outside;

[0007] The gas storage tank is connected to the air release valve to collect the gas therein;

[0008] The temporary storage tank is detachably arranged between the air release valve and the gas storage tank. The gas enters the gas storage tank from the air release valve through the temporary storage tank. The temporary storage tank includes a first tank body, a first air inlet and a first piston rod. The first tank body is used to temporarily store gas and liquid; the first air inlet is arranged at the bottom of the first tank body and can extend into the air release valve to communicate with it; the first piston rod is arranged in the first tank body for vertical movement, one end of which is arranged in the first tank body and fits against the inner wall of the tank body to seal the temporary storage space below the first piston rod, and the other end extends upward out of the first tank body. The first piston rod is formed with a through hole extending upward and downward, the bottom of the through hole is connected to the first tank body, and the top is connected to the outside world. After the gas enters the first air inlet, it is discharged upward through the through hole.

[0009] Preferably, the gas storage tank is detachably arranged above the temporary storage tank, and includes a second tank body, a second air inlet and a second piston rod, the second tank body is used to collect sampled gas; the second air inlet is arranged below the second tank body and communicates with the top of the through hole; the second piston rod is liftable in the second tank body, one end of which is arranged in the second tank body and fits with the inner wall of the tank body to seal the gas storage space below the second piston rod, and the other end extends upward out of the second tank body, and the second piston rod can rise upward as the gas enters from the second air inlet.

[0010] Preferably, one-way valves are provided in the first air inlet and the second air inlet to limit the one-way flow of gas and liquid.

[0011] Preferably, the one-way valve includes a sealing bead and a limit piece. The sealing bead is arranged in the tank body and can be moved closer or farther away to open or close the first air inlet and the second air inlet; the limit piece is arranged in the tank body and located at the outlet of the first air inlet and the second air inlet to limit the movement range of the sealing bead.

[0012] Preferably, the temporary storage tank further comprises a plug, which is detachably disposed in the through hole at the top of the first piston rod, the plug being disposed in the through hole to seal the through hole, and the first piston rod can move upward to draw the liquid in the air release valve into the first tank body.

[0013] Preferably, the gas collecting box also includes a connecting valve, an oil drain valve and an observation window. The connecting valve is arranged on the top of the gas collecting box and connected to the transformer through a copper tube; the oil drain valve is arranged at the bottom of the gas collecting box; and the observation window is arranged on the side of the gas collecting box for observing the internal liquid level.

[0014] Preferably, an extension section extending outward is formed on the top of the first piston rod, and the bottom of the extension section contacts the top surface of the first tank body.

[0015] Preferably, the first tank body and the second tank body are both made of transparent materials to facilitate observation of the internal conditions.

[0016] It can be seen from the above description of the utility model that compared with the prior art, the utility model has the following beneficial effects: when deflation, the gas enters the gas storage tank through the temporary storage tank, the gas storage tank is removed after the gas storage tank sampling is completed, and the gas is continuously deflated through the through hole of the first piston rod, and the oil enters the first tank body through the first air inlet after the gas is completely emptied, at this time, the deflation valve is closed and the through hole is sealed, and then the first piston rod is lifted upward so that the oil remaining in the deflation valve is sucked into the first tank body, and then the temporary storage tank is removed to complete the sampling. The gas sample collection of the present application is quick and convenient, and it is not easy to cause gas sample pollution, and the overflowed oil can be collected through the temporary storage tank to avoid polluting the environment, which has high practicality;

[0017] The space below the second piston rod of the second tank is sealed by the second piston rod. When gas enters from the second gas inlet, the second piston rod rises accordingly, and the process of gas collection can be observed;

[0018] The one-way valve can limit the one-way flow of gas and liquid, avoiding the leakage of gas and liquid when the gas storage tank and the temporary storage tank are disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the connection between the gas storage tank and the temporary storage tank of the utility model;

[0021] Figure 3 This is a schematic diagram of the working state of the temporary storage tank of the utility model;

[0022] In the figure: 1-gas collecting box; 11-air release valve; 12-connecting valve; 13-oil drain valve; 14-observation window; 15-copper tube; 2-gas storage tank; 21-second tank body; 22-second air inlet; 23-second piston rod; 3-temporary storage tank; 31-first tank body; 32-first air inlet; 33-first piston rod; 34-plug; 35-through hole; 36-extension section; 4-one-way valve; 41-sealing bead; 42-limiting member. DETAILED DESCRIPTION

[0023] The present invention is further described below through specific implementation methods.

[0024] Reference Figures 1 to 3 As shown, a transformer gas collecting device with integrated gas collection includes a gas collecting box 1, a gas storage tank 2, a temporary storage tank 3, and a one-way valve 4.

[0025] The gas collecting box 1 is connected to the transformer to collect the gas generated in the transformer, and includes a gas release valve 11, a connecting valve 12, an oil drain valve 13 and an observation window 14. The gas release valve 11 is arranged on the top of the gas collecting box 1 to discharge gas to the outside; the connecting valve 12 is arranged on the top of the gas collecting box 1 and connected to the transformer through a copper tube 15; the oil drain valve 13 is arranged at the bottom of the gas collecting box 1; and the observation window 14 is arranged on the side of the gas collecting box 1 to observe the internal liquid level.

[0026] The gas storage tank 2 is detachably connected to the air release valve 11 to collect the gas therein. The gas storage tank 2 includes a second tank body 21, a second air inlet 22 and a second piston rod 23. The second tank body 21 is used to collect the sampled gas; the second air inlet 22 is arranged below the second tank body 21 and communicates with the top of the temporary storage tank 3; the second piston rod 23 can be raised and lowered in the second tank body 21, one end of which is arranged in the second tank body 21 and fits against the inner wall of the tank body to seal the gas storage space below the second piston rod 23, and the other end extends upward out of the second tank body 21, and the second piston rod 23 can rise upward as the gas enters from the second air inlet 22. When the gas enters from the second air inlet 22, the second piston rod 23 rises accordingly, and the process of gas collection can be observed.

[0027] The temporary storage tank 3 is detachably arranged between the air release valve 11 and the gas storage tank 2. The gas enters the gas storage tank 2 from the air release valve 11 through the temporary storage tank 3. The temporary storage tank 3 includes a first tank body 31, a first air inlet 32, a first piston rod 33 and a plug 34. The first tank body 31 is used to temporarily store gas and liquid; the first air inlet 32 ​​is arranged at the bottom of the first tank body 31 and can extend into the air release valve 11 to communicate with it; the first piston rod 33 is arranged in the first tank body 31 for upward and downward movement, and one end is arranged in the first tank body 31 to fit the inner wall of the tank body to seal the first piston rod The first piston rod 33 has a temporary storage space below, and the other end extends upward out of the first tank body 31. The first piston rod 33 is formed with a through hole 35 from top to bottom. The bottom of the through hole 35 is connected to the inside of the first tank body 31, and the top can be connected to the second air inlet 22. After the gas enters the first air inlet 32, it is discharged upward through the through hole 35; the plug 34 is detachably arranged in the through hole 35 at the top of the first piston rod 33. The plug 34 is arranged in the through hole 35 to seal the through hole 35. The first piston rod 33 moves upward to draw the liquid in the deflation valve 11 into the first tank body 31. Specifically, the top of the first piston rod 33 is formed with an extension section 36 extending outward, and the bottom of the extension section 36 contacts the top surface of the first tank body 31, which is convenient for actively operating the first piston rod 33 to rise and fall.

[0028] Furthermore, a one-way valve 4 is provided in the first air inlet 32 ​​and the second air inlet 22 to limit the one-way flow of gas and liquid. The one-way valve 4 includes a sealing bead 41 and a stopper 42. The sealing bead 41 is provided in the tank body and can be moved closer or further away to open or close the first air inlet 32 ​​and the second air inlet 22; the stopper 42 is provided in the tank body and is located at the outlet of the first air inlet 32 ​​and the second air inlet 22 to limit the range of movement of the sealing bead 41 to avoid leakage of gas and liquid when the gas storage tank 2 and the temporary storage tank 3 are disassembled. Both the first tank body 31 and the second tank body 21 are made of transparent materials for easy observation of the internal conditions, so as to visually detect the entry of oil into the first tank body 31 and the position of the second piston rod 23 in the second tank body 21 to determine whether the sampling is completed.

[0029] When collecting gas samples, the operator installs the temporary storage tank 3 and the gas storage tank 2 on the air release valve 11 in sequence and then opens the air release valve 11. The gas enters the first tank body 31 from the first air inlet hole and enters the second tank body 21 through the second air inlet 22 along the first piston rod 33 through the through hole 35. The second piston rod 23 rises under the action of the gas, and when it reaches the highest point, it means that the gas sample collection is completed. At this time, the air release valve 11 is temporarily closed and the gas storage tank 2 is removed. When deflation, the air release valve 11 is reopened, and the gas continues to be discharged outward through the through hole 35. After the gas is completely emptied, the oil enters the first tank body 31 through the first air inlet 32. At this time, the air release valve 11 is closed and the through hole 35 is sealed with a plug 34. The operator grabs the first piston rod 33 and lifts it upward so that the oil remaining in the air release valve 11 is sucked into the first tank body 31, and then removes the temporary storage tank 3 to complete the sampling. The gas sample collection of this solution is quick and convenient, and it is not easy to cause gas sample contamination, which can improve the accuracy of the test results. Furthermore, the temporary storage tank 3 can prevent oil from overflowing and polluting the environment when the air is released, and the temporary storage tank 3 has high practicality.

[0030] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of implementation of the present utility model. That is, equivalent changes and modifications made according to the scope of the patent application of the present utility model and the contents of the specification should still fall within the scope covered by the patent of the present utility model.

Claims

1. A transformer gas collection device with integrated collection and recovery, characterized in that: Including gas collecting box, gas storage tank and temporary storage tank, The gas collecting box is connected to the transformer to collect the gas generated in the transformer, and a gas release valve is provided on the top of the gas collecting box to discharge the gas to the outside; The gas storage tank is connected to the air release valve to collect the gas therein; The temporary storage tank is detachably arranged between the air release valve and the gas storage tank. The gas enters the gas storage tank from the air release valve through the temporary storage tank. The temporary storage tank includes a first tank body, a first air inlet and a first piston rod. The first tank body is used to temporarily store gas and liquid; the first air inlet is arranged at the bottom of the first tank body and can extend into the air release valve to communicate with it; the first piston rod is arranged in the first tank body for vertical movement, one end of which is arranged in the first tank body and fits against the inner wall of the tank body to seal the temporary storage space below the first piston rod, and the other end extends upward out of the first tank body. The first piston rod is formed with a through hole extending upward and downward, the bottom of the through hole is connected to the first tank body, and the top is connected to the outside world. After the gas enters the first air inlet, it is discharged upward through the through hole.

2. The transformer gas collection device integrated with gas collection according to claim 1, characterized in that: The gas storage tank is detachably arranged above the temporary storage tank, and includes a second tank body, a second air inlet and a second piston rod. The second tank body is used to collect sampled gas; the second air inlet is arranged below the second tank body and communicates with the top of the through hole; the second piston rod is liftable in the second tank body, one end of which is arranged in the second tank body and fits against the inner wall of the tank body to seal the gas storage space below the second piston rod, and the other end extends upward out of the second tank body. The second piston rod can rise upward as the gas enters from the second air inlet.

3. The transformer gas collection device integrated with gas collection according to claim 2, characterized in that: One-way valves are provided in the first air inlet and the second air inlet to limit the one-way flow of gas and liquid.

4. The transformer gas collection device integrated with gas collection according to claim 3, characterized in that: The one-way valve includes a sealing bead and a limiting member. The sealing bead is arranged in the tank body and can be moved closer or farther away to open or close the first air inlet and the second air inlet; the limiting member is arranged in the tank body and located at the outlets of the first air inlet and the second air inlet to limit the range of movement of the sealing bead.

5. The transformer gas collection device integrated with gas collection according to claim 1, characterized in that: The temporary storage tank also includes a plug, which is detachably arranged in the through hole at the top of the first piston rod. The plug is arranged in the through hole to seal the through hole. The first piston rod moves upward to draw the liquid in the air release valve into the first tank body.

6. The transformer gas collection device integrated with gas collection according to claim 1, characterized in that: The gas collecting box also includes a connecting valve, an oil drain valve and an observation window. The connecting valve is arranged on the top of the gas collecting box and connected to the transformer through a copper tube; the oil drain valve is arranged at the bottom of the gas collecting box; and the observation window is arranged on the side of the gas collecting box for observing the internal liquid level.

7. The transformer gas collection device integrated with gas collection according to claim 2, characterized in that: An extension section extending outward is formed on the top of the first piston rod, and the bottom of the extension section contacts the top surface of the first tank body.

8. The transformer gas collection device integrated with gas collection according to claim 2, characterized in that: The first tank body and the second tank body are both made of transparent materials to facilitate observation of the internal conditions.

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