Novel transformer respirator device without removing heavy gas protection

Abstract

The invention relates to a novel transformer respirator device without removing heavy gas protection, which comprises a tank body made of PC (polycarbonate) plastic, a drying agent is placed in the tank body to keep oil gas dry, and a respirator is connected with a transformer oil tank through a connecting flange and is fixed at the top of the tank body through threads to ensure sealing. An air valve body, an air hole telescopic cover, a reset spring, a drying agent separation net, a respirator opening, an oil cup, a breathing hole, an air hole and other components are further arranged in the respirator and jointly act to achieve exchange between oil gas and outside air, meanwhile, dryness of an oil gas system is kept, the respirator is designed to be disposable, and the aims of reducing cost and simplifying maintenance are achieved. The valve on the breathing pipeline is provided with a relay, when the valve is closed, a first butt joint point of the relay is disconnected, and when the valve is opened, the first butt joint point of the relay is closed; the first butt joint is connected in series in a heavy gas protection loop, and the respirator device can be safely replaced under the condition that the heavy gas tripping pressing plate is not withdrawn.

Description

Technical Field

[0001] The present application relates to the technical field of transformer respirators, and in particular to a novel transformer respirator device that does not require de-weighting gas protection. Background Art

[0002] Transformers are important equipment in power systems. Transformer respirators, as important accessories of transformers, play an important role in the normal operation of transformers. The overall cost of transformer respirators is currently very high, with each piece costing thousands of yuan. Due to the high price, it is common practice to maintain them rather than discard them after a single use. The pore design of the transformer respirator is unreasonable, resulting in rainwater entering the interior of the transformer respirator through these pores on rainy days. As rainwater enters, the desiccant inside the transformer respirator may absorb the oil-water mixture, making the desiccant viscous. When the desiccant fails, it needs to be cleaned and replaced, but because the desiccant becomes viscous, the cleaning process is very difficult and requires a lot of effort.

[0003] In addition, after the transformer silicone fails, the operation and maintenance personnel need to replace it. However, during the replacement process, the heavy gas tripping pressure plate needs to be withdrawn to avoid tripping caused by the heavy gas protection during the replacement process. However, withdrawing the heavy gas tripping pressure plate requires human operation, and it is inevitable that omissions will occur, resulting in the risk of the main transformer tripping. Omissions refer to the process during which, due to human negligence or other reasons, the steps for withdrawing the heavy gas tripping pressure plate are not correctly executed, resulting in the pressure plate still in a working state. Summary of the invention

[0004] The purpose of this application is to propose a novel transformer breather device that does not require de-weighting gas protection, so as to improve the use efficiency and cost-effectiveness of the transformer breather and avoid missing de-weighting when replacing the transformer breather.

[0005] To achieve the above objectives, the present application provides a novel transformer respirator device without the need for back-weight gas protection, comprising:

[0006] It comprises a tank body (6), a portion connected to the oil tank and a breathing port portion; the tank body (6) and the breathing port portion are made of PC plastic;

[0007] The tank body (6) contains a desiccant and a desiccant isolation net (8), wherein the desiccant isolation net (8) is disposed in the tank body (6) at a position close to the respirator port (10);

[0008] The part connected with the oil tank comprises:

[0009] A connecting flange (1), which is used to connect the transformer oil tank and is fixed to the top of the tank body (6) by threaded connection to ensure a sealed connection between the oil tank and the breather;

[0010] A gas valve body (2), one end of which is fixed to the connecting flange (1), and the other end of which passes through a mounting hole (18) of the tank body (6), so that a portion of the gas valve body (2) is located outside the tank body (6) and the other portion is located inside the tank body (6); a vent hole (17) is provided on the gas valve body (2) to allow gas to flow between the oil tank and the inside of the tank body (6);

[0011] The air hole telescopic cover (3) is slidably connected to the outer edge of the air valve body (2) and is used to cover the air hole (17);

[0012] A return spring (4), one end of which is connected to the air hole telescopic cover (3) and the other end of which is connected to the air valve body (2), providing elastic force to ensure that the air hole telescopic cover (3) is always pressed tightly against the air vent (17);

[0013] The breathing port part comprises:

[0014] The respirator port (10) is connected to the inner cavity of the tank body (6) through the desiccant isolation net (8);

[0015] An oil cup (12), which is arranged at the bottom of the breather port (10) and is used to store oil; the oil forms a liquid level in the oil cup (12) and is used to isolate the breathing hole (13);

[0016] A breathing hole (13) is provided on the breathing device port (10) and is located above the oil cup (12). The breathing hole (13) is isolated from the outside air by the oil in the oil cup (12); when the transformer oil tank produces a breathing phenomenon, the oil level in the oil cup (12) changes, allowing air to enter the tank body (6) through the breathing hole (13)

[0017] internal;

[0018] The air vent (17) is located on the air valve body (2) and connects the oil tank and the inside of the tank body (6); when the oil tank generates positive pressure or negative pressure, gas flows through the air vent (17) to achieve air pressure balance;

[0019] The oil tank connection part is connected to the transformer oil tank through a breathing pipe, and a valve is provided on the breathing pipe for closing or conducting the breathing pipe; a relay is provided on the valve, and when the valve is closed, the first docking point of the relay is disconnected, and when the valve is opened, the first docking point of the relay is closed; the first docking point is connected in series in the heavy gas protection circuit.

[0020] Furthermore, it also includes:

[0021] The limit spring (5) is arranged at the end of the air valve body (2) and is used to limit the range of the air hole telescopic cover (3) sliding out of the air valve body (2), thereby ensuring that the air hole telescopic cover (3) will not fall off accidentally during normal operation.

[0022] Furthermore, it also includes:

[0023] A respirator port sealing gasket (9) is arranged between the respirator port (10) and the tank body (6) and is used to seal the connection between the respirator port (10) and the tank body (6) to prevent oil and gas leakage.

[0024] Furthermore, the respirator port comprises an inner tube (15) and an outer tube (16), the inner tube (15) being located inside the outer tube (16), the two being fixedly connected and having a certain gap therebetween, the outer tube (16) being provided with a breathing hole (13), the outer tube (16) being fixedly connected to the oil cup (12), the oil in the oil cup (12) being able to enter the gap, and when the air pressure changes, the change in the liquid level of the oil in the oil cup (12) between the inner tube (15) and the outer tube (16) will expose or cover the breathing hole (13), thereby allowing air to pass through and enter the tank body (6).

[0025] Furthermore, it also includes:

[0026] A rain-shielding curtain (14) is arranged on the outer cylinder (16) to cover the breathing hole (13) and is used to prevent rainwater from entering the breathing hole (13) when rainwater flows down along the surface of the transformer respirator.

[0027] Furthermore, a pressure relief valve is provided on the tank body (6).

[0028] Furthermore, it also includes a handle, which is used to rotate the tank body (6) to disassemble the respirator. The handle is interlocked with the valve through an interlocking mechanism. When the valve is closed, the handle is unlocked, and when the valve is opened, the handle is locked.

[0029] Further, when the valve is closed, the interlocking mechanism is driven to move to an unlocking position, and the handle is unlocked; when the valve is opened, the interlocking mechanism is driven to move to a locking position, and the handle is locked.

[0030] Furthermore, when the valve is closed, the second docking point of the relay is opened, and when the valve is opened, the second docking point of the relay is closed; the interlocking mechanism includes an electromagnetic lock, and the second docking point is connected in series with the electromagnetic lock. When the second docking point is closed, the electromagnetic lock is energized to lock the handle, and when the second docking point is disconnected, the electromagnetic lock loses power to unlock the handle.

[0031] A transformer respirator according to an embodiment of the present application has the following beneficial effects:

[0032] The parts of the respirator other than the oil tank connection part are made of PC plastic, with low overall cost and designed for disposable use, which simplifies the use and maintenance process. The part of the respirator connected to the oil tank can be disassembled very conveniently, and the oil tank can be sealed instantly during disassembly. Therefore, the use efficiency and cost-effectiveness of the transformer respirator can be improved. The valve on the breathing pipe is provided with a relay. When the valve is closed, the first docking point of the relay is disconnected, and when the valve is opened, the first docking point of the relay is closed; the first docking point is connected in series in the heavy gas protection circuit, and the respirator device can be safely replaced without exiting the heavy gas tripping pressure plate, which reduces the operating steps and improves the safety and efficiency of the maintenance process; at the same time, it avoids the risk of transformer tripping due to human operating errors.

[0033] More features and advantages of the embodiments of the present application are reflected below. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is a schematic diagram of the structure of a transformer respirator in an embodiment of the present application.

[0036] Figure 2 This is an exploded view of a transformer respirator in an embodiment of the present application.

[0037] Figure 3 This is a schematic diagram of a first connection point of a relay in an embodiment of the present application being connected in series in a heavy gas protection circuit.

[0038] Figure 4 This is a schematic diagram of the second connection point of the relay in the embodiment of the present application being connected in series in the electromagnetic lock circuit.

[0039] Markings in the figure:

[0040] 1-connecting flange; 2-air valve body; 3-air hole telescopic cover; 4-reset spring; 5-limiting retaining spring; 6-tank body; 8-desiccant isolation net; 9-respirator port sealing gasket; 10-respirator port; 11-oil cup sealing gasket; 12-oil cup; 13-breathing hole; 14-rain curtain; 15-inner tube; 16-outer tube; 17-air vent; 18-installation hole. DETAILED DESCRIPTION

[0041] See also Figures 1-2 , the embodiment of the present application provides a new transformer respirator device without the need for de-weighting gas protection, comprising a tank body 6, a portion connected to an oil tank, and a breathing port portion; the tank body 6 and the breathing port portion are made of PC plastic;

[0042] A desiccant is placed inside the tank body 6 and a desiccant isolation net 8 is provided. The desiccant isolation net 8 is provided inside the tank body 6 near the respirator port 10;

[0043] The part connected with the oil tank comprises:

[0044] A connecting flange 1, which is used to connect the transformer oil tank and is fixed to the top of the tank body 6 by threaded connection to ensure a sealed connection between the oil tank and the respirator;

[0045] The gas valve body 2 has one end fixed to the connecting flange 1 and the other end passing through the mounting hole 18 of the tank body 6, so that a part of the gas valve body 2 is located outside the tank body 6 and the other part is located inside the tank body 6; the gas valve body 2 is provided with a vent hole 17 to allow gas to flow between the oil tank and the inside of the tank body 6;

[0046] The vent telescopic cover 3 is slidably connected to the outer edge of the valve body 2 and is used to cover the vent hole 17;

[0047] A return spring 4, one end of which is connected to the air hole telescopic cover 3, and the other end of which is connected to the air valve body 2, to provide elastic force to ensure that the air hole telescopic cover 3 is always pressed tightly against the air vent 17;

[0048] The breathing port part comprises:

[0049] The respirator port 10 is connected to the inner cavity of the tank body 6 through the desiccant isolation net 8;

[0050] The oil cup 12 is arranged at the bottom of the breather port 10 and is used to store oil; the oil forms a liquid level in the oil cup 12 and is used to isolate the breathing hole 13;

[0051] The breathing hole 13 is provided on the breather port 10 and is located above the oil cup 12, and is isolated from the outside air by the oil in the oil cup 12; when the transformer oil tank produces a breathing phenomenon, the oil level in the oil cup 12 changes, allowing air to enter the tank body 6 through the breathing hole 13;

[0052] The air vent 17 is located on the air valve body 2 and connects the oil tank and the inside of the tank body 6; when the oil tank generates positive pressure or negative pressure, the gas flows through the air vent 17 to achieve air pressure balance.

[0053] Furthermore, it also includes:

[0054] The limiting retaining spring 5 is arranged at the end of the air valve body 2 and is used to limit the range of the air hole telescopic cover 3 sliding out of the air valve body 2 to ensure that the air hole telescopic cover 3 will not fall off accidentally during normal operation.

[0055] Furthermore, the breathing port portion further includes:

[0056] The respirator port sealing gasket 9 is arranged between the respirator port 10 and the tank body 6 to seal the connection between the respirator port 10 and the tank body 6 to prevent oil and gas leakage.

[0057] Furthermore, the respirator port includes an inner cylinder 15 and an outer cylinder 16, the inner cylinder 15 is located inside the outer cylinder 16, the two are fixedly connected and there is a certain gap between the two, the outer cylinder 16 is provided with a breathing hole 13, the outer cylinder 16 is fixedly connected to the oil cup 12, the oil in the oil cup 12 can enter the gap, when the air pressure changes, the liquid level change of the oil in the oil cup 12 between the inner cylinder 15 and the outer cylinder 16 will expose or cover the breathing hole 13, thereby allowing air to pass through and enter the tank body 6.

[0058] Furthermore, the breathing port portion further includes:

[0059] The rain-shielding curtain 14 is arranged on the outer cylinder 16 to cover the breathing hole 13 , and is used to prevent rain water from entering the breathing hole 13 when rain water flows down along the surface of the transformer breather.

[0060] Furthermore, the tank body 6 is also provided with a pressure relief valve, which is a one-way valve.

[0061] Specifically, the working principle of the transformer respirator of this embodiment is as follows:

[0062] The connecting flange 1 is threadedly connected to the tank body 6. When disassembly is required, the tank body 6 only needs to be rotated to disengage the connecting flange 1 from the tank body 6. At this time, the air valve body 2 is synchronously disengaged from the tank body 6, and the moment the mounting hole 18 is disengaged from the air hole telescopic cover 3, the air hole telescopic cover 3 will move downward under the action of elastic force until it is restricted by the retaining spring. At this time, the air hole telescopic cover 3 covers the air hole 17, and the inner wall of the air hole telescopic cover 3 is provided with a sealing ring to achieve the sealing of the air hole 17. Therefore, when disassembling, the oil tank connection part can achieve instantaneous sealing of the oil tank in time to prevent the outside undried air from entering the oil tank. The pressure relief valve of the tank body 6 is directly connected to the inside of the tank body 6. When the desiccant part is abnormally blocked and the oil tank has positive pressure breathing, the gas can be discharged through the pressure relief valve of the tank body 6.

[0063] The respirator port 10 is connected to the interior of the tank body 6 through the respirator port sealing gasket 9 and the desiccant isolation net 8. A breathing hole 13 is opened on the respirator, and an arc-shaped rain shielding curtain 14 is arranged on the periphery of the breathing hole 13 to shield the rain. The oil cup 12 is arranged at the bottom of the respirator port 10. The respirator port 10 has an inner tube 15 and an outer tube 16, wherein the outer tube 16 is connected to the oil cup 12, and the inner tube 15 is used to isolate the air. During use, an appropriate amount of oil will be stored in the oil cup 12, and the oil will submerge the bottom of the inner tube 15 and the outer tube 16, so that the oil can isolate the breathing hole 13. When the respirator is in normal use, the oil tank of the transformer will breathe. When the oil tank generates negative pressure, the negative pressure is connected to the breathing port through the tank body 6. At this time, the negative pressure will suck up the oil in the oil cup 12 through the inner tube 15, and the liquid level of the inner tube 15 will rise, and the liquid level of the outer tube 16 will drop until the oil no longer isolates the breathing hole 13. At this time, the outside air enters the respirator port 10 through the breathing hole 13, and enters the oil pipe after being dried by the desiccant inside the tank body 6 to achieve air pressure balance; when the oil pipe generates positive pressure, the reverse is the same to achieve air pressure balance. The setting of the rain curtain 14 can well prevent water from entering and contacting the desiccant inside the tank body 6, and can well extend the effective time of the desiccant. In addition, the water-blocking effect can be further improved by setting a circle of water-blocking and breathable material on the outer edge of the breathing hole 13.

[0064] Furthermore, the oil tank connection part is connected to the transformer oil tank through a breathing pipe, and a valve is provided on the breathing pipe for closing or conducting the breathing pipe; a relay is provided on the valve, and when the valve is closed, the first docking point of the relay is disconnected, and when the valve is opened, the first docking point of the relay is closed; Figure 3 As shown, the first docking point is connected in series in the heavy gas protection circuit.

[0065] Specifically, the steps for replacing the respirator of the transformer breathing device of this embodiment are as follows:

[0066] S1 closes the valve:

[0067] Close the valve on the breathing pipe manually or through the control system; the closing of the valve will disconnect the first connection point of the relay, thereby cutting off the power supply of the heavy gas protection circuit;

[0068] S2 confirms that the heavy gas protection circuit is disconnected:

[0069] Confirm through monitoring or testing that the heavy gas protection circuit has been disconnected, so that when the breather is replaced, even if the heavy gas protection action occurs, it will not cause the transformer to trip;

[0070] S3 disassembly respirator:

[0071] After confirming that the heavy gas protection circuit has been disconnected, the old respirator device can be safely removed; at this time, since the valve is closed, the transformer tank is isolated from the outside world, preventing oil and gas leakage and outside air from entering;

[0072] S4 Install new respirator:

[0073] Install the new breather assembly by following these steps in reverse order; make sure the new breather is installed correctly and seals well;

[0074] S5 opens the valve:

[0075] After the new respirator is installed, open the valve manually or through the control system; the opening of the valve will close the first connection point of the relay and re-energize the heavy gas protection circuit;

[0076] S6 restores heavy gas protection:

[0077] After confirming that the valve is open and the heavy gas protection circuit has been restored, the breathing device replacement process is completed and the transformer can resume normal operation;

[0078] Through the design of this embodiment, the breather device can be safely replaced without withdrawing the heavy gas tripping pressure plate, reducing the operating steps and improving the safety and efficiency of the maintenance process; at the same time, the risk of transformer tripping due to human operating errors is avoided.

[0079] Furthermore, it also includes a handle, which is used to rotate the tank body 6 to disassemble the respirator. The handle is interlocked with the valve through an interlocking mechanism. When the valve is closed, the handle is unlocked, and when the valve is opened, the handle is locked.

[0080] Specifically, this embodiment provides a mechanical interlocking mechanism, which physically connects the open and closed state of the valve with the locked state of the handle. The working principle of the mechanical interlocking mechanism is as follows:

[0081] Operation when the valve is closed: When the valve is closed, a component on the valve, such as a gear, rod, cam, etc., will drive the interlocking mechanism through a mechanical connection such as a gear set, connecting rod, transmission belt, etc.; the interlocking mechanism is driven to the unlocked position, which releases the locking components connected to the handle, such as pins, latches, springs, etc.; once the locking components are released, the operator can freely rotate or pull the handle to remove the respirator;

[0082] Operation when the valve is open: When the valve is open, the movement of the valve causes the interlock mechanism to be driven to the locked position; in the locked position, the interlock mechanism locks the handle to prevent it from being accidentally operated when the valve is open; at this time, even if the operator tries to rotate or pull the handle, the respirator cannot be removed due to the action of the locking mechanism;

[0083] This mechanical interlock design ensures that the breather can be safely removed only when the valve is closed, thus avoiding oil and gas leakage or other safety issues caused by improper operation during maintenance. Through physical connection, this interlock mechanism does not rely on electrical signals, so it can still provide effective protection in some environments where the electrical system may be unreliable.

[0084] Further, when the valve is closed, the interlocking mechanism is driven to move to an unlocking position, and the handle is unlocked; when the valve is opened, the interlocking mechanism is driven to move to a locking position, and the handle is locked.

[0085] Further, when the valve is closed, the second docking point of the relay is opened, and when the valve is opened, the second docking point of the relay is closed; the interlocking mechanism includes an electromagnetic lock, such as Figure 4 As shown, the second docking point is connected in series with the electromagnetic lock. When the second docking point is closed, the electromagnetic lock is energized to lock the handle. When the second docking point is disconnected, the electromagnetic lock loses power to unlock the handle.

[0086] Specifically, this embodiment provides an electrical interlocking mechanism, which uses the second connection point of the relay to control the power on and off of the electromagnetic lock, thereby achieving the locking and unlocking of the handle; the working principle of the electrical interlocking mechanism is as follows:

[0087] Operation when the valve is closed: When the valve is closed, the second connection point of the relay opens, cutting off the power supply of the electromagnetic lock; after the electromagnetic lock loses power, the magnetic component inside it loses its magnetic force, releasing the locking mechanism and unlocking the handle; at this time, the operator can freely rotate or pull the handle to disassemble and install the respirator;

[0088] Operation when the valve is open: When the valve is open, the second connection point of the relay is closed, and the power supply of the electromagnetic lock is turned on; after the electromagnetic lock is powered, the magnetic component inside it generates magnetic force to attract the locking mechanism, so that the handle is locked; when the valve is open, due to the action of the electromagnetic lock, the handle is locked and cannot be operated, thereby ensuring the safety of the respirator during maintenance;

[0089] This electrical interlock design ensures that the respirator can only be safely disassembled when the valve is closed and the electromagnetic lock loses power; it relies on electrical signals to control the locking state of the handle, so it is necessary to ensure the reliability and correct wiring of the relay and electromagnetic lock; through electrical interlocking, safe control of respirator maintenance operations can be achieved, human errors can be reduced, and the automation level of the system can be improved.

[0090] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A new type of transformer respirator device without the need for back-weight gas protection, characterized in that: It comprises a tank body (6), a portion connected to the oil tank and a breathing port portion; the tank body (6) and the breathing port portion are made of PC plastic; The tank body (6) contains a desiccant and a desiccant isolation net (8), wherein the desiccant isolation net (8) is disposed in the tank body (6) at a position close to the respirator port (10); The part connected with the oil tank comprises: A connecting flange (1), which is used to connect the transformer oil tank and is fixed to the top of the tank body (6) by threaded connection to ensure a sealed connection between the oil tank and the breather; A gas valve body (2), one end of which is fixed to the connecting flange (1), and the other end of which passes through a mounting hole (18) of the tank body (6), so that a portion of the gas valve body (2) is located outside the tank body (6) and the other portion is located inside the tank body (6); a vent hole (17) is provided on the gas valve body (2) to allow gas to flow between the oil tank and the inside of the tank body (6); The air hole telescopic cover (3) is slidably connected to the outer edge of the air valve body (2) and is used to cover the air hole (17); A return spring (4), one end of which is connected to the air hole telescopic cover (3) and the other end of which is connected to the air valve body (2), providing elastic force to ensure that the air hole telescopic cover (3) is always pressed tightly against the air vent (17); The breathing port part comprises: The respirator port (10) is connected to the inner cavity of the tank body (6) through the desiccant isolation net (8); An oil cup (12), which is arranged at the bottom of the breather port (10) and is used to store oil; the oil forms a liquid level in the oil cup (12) and is used to isolate the breathing hole (13); A breathing hole (13), the breathing hole (13) is formed on the breathing device port (10) and is located above the oil cup (12), and is isolated from the outside air by the oil in the oil cup (12); when the transformer oil tank produces a breathing phenomenon, the oil level in the oil cup (12) changes, allowing air to enter the tank body (6) through the breathing hole (13); The air vent (17) is located on the air valve body (2) and connects the oil tank and the inside of the tank body (6); when the oil tank generates positive pressure or negative pressure, gas flows through the air vent (17) to achieve air pressure balance; The part connected with the oil tank is connected with the transformer oil tank through a breathing pipe, and a valve is arranged on the breathing pipe for closing or conducting the breathing pipe; a relay is arranged on the valve, and when the valve is closed, the first docking point of the relay is disconnected, and when the valve is opened, the first docking point of the relay is closed; the first docking point is connected in series in the heavy gas protection circuit.

2. The new transformer respirator device according to claim 1 is characterized in that: The part connected with the oil tank also includes: The limit spring (5) is arranged at the end of the air valve body (2) and is used to limit the range of the air hole telescopic cover (3) sliding out of the air valve body (2), thereby ensuring that the air hole telescopic cover (3) will not fall off accidentally during normal operation.

3. The new transformer respirator device according to claim 1 is characterized in that: The breathing port part also includes: A respirator port sealing gasket (9) is arranged between the respirator port (10) and the tank body (6) and is used to seal the connection between the respirator port (10) and the tank body (6) to prevent oil and gas leakage.

4. The new transformer respirator device according to claim 1 is characterized in that: The respirator port comprises an inner cylinder (15) and an outer cylinder (16), wherein the inner cylinder (15) is located inside the outer cylinder (16), the two are fixedly connected and there is a certain gap between the two, a breathing hole (13) is provided on the outer cylinder (16), the outer cylinder (16) is fixedly connected to the oil cup (12), the oil in the oil cup (12) can enter the gap, and when the air pressure changes, the liquid level of the oil in the oil cup (12) between the inner cylinder (15) and the outer cylinder (16) changes, exposing or covering the breathing hole (13), thereby allowing air to pass through and enter the tank body (6).

5. The novel transformer respirator device according to claim 4 is characterized in that: Also includes: A rain-shielding curtain (14) is arranged on the outer cylinder (16) to cover the breathing hole (13) and is used to prevent rainwater from entering the breathing hole (13) when rainwater flows down along the surface of the transformer respirator.

6. The novel transformer respirator device according to claim 1 is characterized in that: The tank body (6) is also provided with a pressure relief valve.

7. The novel transformer respirator device according to claim 1 is characterized in that: It also comprises a handle, which is used to rotate the tank body (6) to disassemble the respirator. The handle is interlocked with the valve through an interlocking mechanism. When the valve is closed, the handle is unlocked, and when the valve is opened, the handle is locked.

8. The new transformer respirator device according to claim 7 is characterized in that: When the valve is closed, the interlocking mechanism is driven to move to the unlocking position, and the handle is unlocked. When the valve is opened, the interlocking mechanism is driven to move to the locking position, and the handle is locked.

9. The novel transformer respirator device according to claim 8 is characterized in that: When the valve is closed, the second docking point of the relay is opened, and when the valve is opened, the second docking point of the relay is closed; the interlocking mechanism includes an electromagnetic lock, and the second docking point is connected in series with the electromagnetic lock. When the second docking point is closed, the electromagnetic lock is energized to lock the handle, and when the second docking point is disconnected, the electromagnetic lock loses power to unlock the handle.

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