CN210813615U - Nitrogen-filled fire extinguishing device for oil-immersed power transformer - Google Patents
Nitrogen-filled fire extinguishing device for oil-immersed power transformer Download PDFInfo
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- CN210813615U CN210813615U CN201921790664.7U CN201921790664U CN210813615U CN 210813615 U CN210813615 U CN 210813615U CN 201921790664 U CN201921790664 U CN 201921790664U CN 210813615 U CN210813615 U CN 210813615U
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Abstract
The utility model discloses a nitrogen-filled fire extinguishing device for oil-immersed power transformer, which comprises a cabinet body, a nitrogen cylinder, a nitrogen gas release valve, a nitrogen valve locking switch, a high-pressure metal hose, a first low-pressure metal hose, a nitrogen gas pressure reducer, a low-pressure meter, a high-pressure meter, a nitrogen-filled interface flange, an oil discharge interface flange, a heating controller, an oil-gas isolating device, a flow regulating valve, a nitrogen-filled driver, a second low-pressure metal hose, a wiring terminal box, a valve-opening heavy hammer, an oil discharge driver, an oil discharge valve, an observation hole cover and an oil leakage monitoring device; the oil leakage monitoring device can automatically monitor whether the oil leakage condition occurs at the oil discharge valve of the nitrogen-filled fire extinguishing device or not, so that a maintainer can timely process the oil leakage condition of the nitrogen-filled fire extinguishing device, and the serious oil leakage condition of a transformer is avoided.
Description
Technical Field
The utility model belongs to the technical field of power control, concretely relates to a fill nitrogen extinguishing device for oil-immersed power transformer.
Background
The nitrogen-filled fire extinguishing device for the transformer belongs to a fixed fire extinguishing device for the transformer, is used for an oil-immersed transformer, has the functions of explosion prevention, fire prevention and fire extinguishing, can automatically detect the fire of the transformer, can be automatically (or manually) started, controls an oil discharge valve to open, discharge oil and release pressure, simultaneously controls a cutoff valve to effectively prevent an oil path from an oil storage cabinet to an oil tank, controls a nitrogen release valve to open to inject nitrogen into the transformer, stirs transformer oil of a cooler, enables the oil temperature to fall below a flash point, simultaneously fully dilutes the oxygen content in the air, and achieves the purpose of rapidly extinguishing the fire.
Traditional nitrogen filling extinguishing device oil extraction device does not have oil leak monitoring devices, if the butterfly valve of nitrogen filling extinguishing device's oil extraction pipe takes place the oil leakage, will lead to main transformer oil level to reduce, causes the circumstances such as buchholz relay warning to take place. Meanwhile, misoperation and misoperation can be caused, the fire extinguishing device can be refused to operate due to too low pressure due to the reduction of the pressure of the nitrogen cylinder, and the fire extinguishing action can not be carried out on the transformer, so that the safe operation of the transformer is influenced, and a serious power grid accident is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model relates to a nitrogen-filled fire extinguishing device for an oil-immersed power transformer, wherein an oil leakage automatic monitoring device is additionally arranged at an oil discharge valve of the nitrogen-filled fire extinguishing device for the transformer, once the oil leakage condition occurs, an alarm can be rapidly given, and when an abnormal signal is found by production operation and maintenance personnel, the abnormal signal can be immediately notified to overhaul personnel for processing, so that the serious oil leakage condition of the transformer is avoided, and the occurrence of accidents is avoided; the iron plate at the oil discharge position of the existing nitrogen-filled fire extinguishing device is replaced by the transparent peephole, so that direct observation is facilitated, and the working efficiency is improved.
The utility model particularly relates to a nitrogen-filled fire extinguishing device for an oil-immersed power transformer, which comprises a cabinet body, a nitrogen bottle, a nitrogen release valve, a nitrogen valve locking switch, a high-pressure metal hose, a first low-pressure metal hose, a nitrogen pressure reducer, a low-pressure meter, a high-pressure meter, a nitrogen-filled interface flange, an oil discharge interface flange, a heating controller, an oil-gas isolating device, a flow regulating valve, a nitrogen-filled driver, a second low-pressure metal hose, a wiring terminal box, a valve-opening heavy hammer, an oil discharge driver, an oil discharge valve, an observation hole cover and an oil leakage monitoring device; the nitrogen valve locking switch controls the nitrogen gas release valve, the high-pressure metal hose is connected between the nitrogen gas cylinder and the nitrogen gas pressure reducer, the first low-pressure metal hose is connected between the nitrogen gas pressure reducer and the nitrogen gas release valve, the low-pressure meter and the high-pressure meter are arranged on the nitrogen gas pressure reducer, the nitrogen charging interface flange and the oil discharging interface flange are arranged at the upper part of the cabinet body, the second low-pressure metal hose is connected between the nitrogen gas release valve and the flow regulating valve, the oil-gas isolating device is connected to the flow regulating valve, and the observation hole cover is arranged on the oil leakage monitoring device; the oil leakage monitoring device can automatically monitor whether the oil leakage condition occurs at the oil discharge valve of the nitrogen-filled fire extinguishing device or not, so that a maintainer can timely process the oil leakage condition of the nitrogen-filled fire extinguishing device, and the serious oil leakage condition of a transformer is avoided.
Furthermore, the oil leakage monitoring device comprises a detection sensor, and the oil leakage condition at the oil discharge valve of the nitrogen-filled fire extinguishing device is monitored on line in real time through the detection sensor; the detection sensor is connected with the background server, and once the oil leakage situation is detected, an alarm is generated immediately, and the production, operation and maintenance personnel immediately inform the maintenance personnel of handling the oil leakage situation of the nitrogen-filled fire extinguishing device in time after finding the alarm signal.
Furthermore, the observation hole cover is provided with a transparent observation hole, so that a worker can directly check whether the oil leakage condition occurs at the oil drain valve through the transparent observation hole without opening the cover.
The utility model has the advantages that: whether oil leakage happens to an oil discharge valve of a main transformer nitrogen-charging fire extinguishing device can be found in real time, serious oil leakage accidents can be avoided, the installation is convenient, the equipment is simple, the loss is small, freezing, blockage and error-free operation are avoided, the device is in an automatic monitoring state, the use is convenient, the cost is reduced, and the reliable operation of a transformer is guaranteed.
Drawings
Fig. 1 is the utility model relates to a fill nitrogen extinguishing device's for oil-immersed power transformer structural schematic.
In the figure: 1. the cabinet body, 2, nitrogen cylinder, 3, bottle fixing device, 4, nitrogen gas release valve, 5, nitrogen valve locking switch, 6, high-pressure metal hose, 7, first low pressure metal hose, 8, nitrogen gas pressure reducer, 9, low-pressure meter, 10, high-pressure meter, 11, fill nitrogen interface flange, 12, oil extraction interface flange, 13, heating controller, 14, oil gas isolating device, 15, flow control valve, 16, fill nitrogen driver, 17, second low pressure metal hose, 18, wiring terminal box, 19, open valve weight, 20, oil extraction driver, 21, oil extraction valve, 22, observation handhole door, 23, oil leak monitoring devices.
Detailed Description
The detailed description of the nitrogen-filled fire extinguishing device for the oil-immersed power transformer is provided below with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to a fill nitrogen extinguishing device for oil-immersed power transformer, fill nitrogen extinguishing device includes the cabinet body 1, nitrogen gas bottle 2, bottle fixing device 3, nitrogen gas release valve 4, nitrogen valve locking switch 5, high-pressure metal collapsible tube 6, first low pressure metal collapsible tube 7, nitrogen gas pressure reducer 8, low-pressure meter 9, high-pressure meter 10, fill nitrogen interface flange 11, arrange oil interface flange 12, heating controller 13, oil gas isolating device 14, flow control valve 15, fill nitrogen driver 16, second low pressure metal collapsible tube 17, wiring terminal box 18, open valve weight 19, arrange oil driver 20, oil drain valve 21, observation handhole door 22 and oil leak monitoring devices 23; the nitrogen valve locking switch 5 controls the nitrogen gas release valve 4, the high-pressure metal hose 6 is connected between the nitrogen gas cylinder 2 and the nitrogen gas pressure reducer 8, the first low-pressure metal hose 7 is connected between the nitrogen gas pressure reducer 8 and the nitrogen gas release valve 4, the low-pressure gauge 9 and the high-pressure gauge 10 are arranged on the nitrogen gas pressure reducer 8, the nitrogen charging interface flange 11 and the oil discharging interface flange 12 are arranged on the upper part of the cabinet body, the second low-pressure metal hose 17 is connected between the nitrogen gas release valve 4 and the flow regulating valve 15, the oil-gas isolating device 14 is connected to the flow regulating valve 15, and the observation hole cover 22 is arranged on the oil leakage monitoring device 23; the oil leakage monitoring device 23 can automatically monitor whether the oil leakage condition occurs at the oil discharge valve of the nitrogen-filled fire extinguishing device or not, so that the maintenance personnel can timely process the oil leakage condition of the nitrogen-filled fire extinguishing device, and the serious oil leakage condition of the transformer is avoided.
The oil leakage monitoring device 23 comprises a detection sensor, and the oil leakage condition at the oil discharge valve of the nitrogen-filled fire extinguishing device is monitored online in real time through the detection sensor; the detection sensor is connected with the background server, and once the oil leakage situation is detected, an alarm is generated immediately, and the production, operation and maintenance personnel immediately inform the maintenance personnel of handling the oil leakage situation of the nitrogen-filled fire extinguishing device in time after finding the alarm signal.
The observation hole cover 22 is provided with a transparent observation hole, so that a worker can directly check whether the oil leakage condition occurs at the oil drain valve through the transparent observation hole without opening the cover.
In fig. 1, reference numeral 22 denotes an observation hole, which is an iron plate in the prior art, and if there is oil leakage in the observation, two screws on the iron plate need to be unscrewed for observation, and the observation hole is changed into a transparent observation hole to facilitate direct observation, thereby improving the working efficiency. In fig. 1, the oil leakage monitoring device 23 is additionally arranged, and once oil leaks from the oil discharge valve, the oil leakage monitoring device can give an alarm in real time so as to avoid serious oil leakage and serious accidents.
The improvement measure has the advantages of wide application range, simple equipment, convenient installation, less loss, no freezing, no blockage and no error operation, automatic monitoring state, convenient use, cost reduction and reliable operation of the transformer.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. A nitrogen-filled fire extinguishing device for an oil-immersed power transformer is characterized by comprising a cabinet body, a nitrogen bottle, a nitrogen release valve, a nitrogen valve locking switch, a high-pressure metal hose, a first low-pressure metal hose, a nitrogen pressure reducer, a low-pressure meter, a high-pressure meter, a nitrogen-filled interface flange, an oil discharge interface flange, a heating controller, an oil-gas isolating device, a flow regulating valve, a nitrogen-filled driver, a second low-pressure metal hose, a wiring terminal box, a valve-opening heavy hammer, an oil discharge driver, an oil discharge valve, an observation hole cover and an oil leakage monitoring device; the nitrogen valve locking switch controls the nitrogen gas release valve, the high-pressure metal hose is connected between the nitrogen gas cylinder and the nitrogen gas pressure reducer, the first low-pressure metal hose is connected between the nitrogen gas pressure reducer and the nitrogen gas release valve, the low-pressure meter and the high-pressure meter are arranged on the nitrogen gas pressure reducer, the nitrogen charging interface flange and the oil discharging interface flange are arranged at the upper part of the cabinet body, the second low-pressure metal hose is connected between the nitrogen gas release valve and the flow regulating valve, the oil-gas isolating device is connected to the flow regulating valve, and the observation hole cover is arranged on the oil leakage monitoring device; the oil leakage monitoring device can automatically monitor whether the oil leakage condition occurs at the oil discharge valve of the nitrogen-filled fire extinguishing device or not, so that a maintainer can timely process the oil leakage condition of the nitrogen-filled fire extinguishing device, and the serious oil leakage condition of a transformer is avoided.
2. The nitrogen-filled fire extinguishing device for the oil-immersed power transformer according to claim 1, wherein the oil leakage monitoring device comprises a detection sensor, and oil leakage at an oil discharge valve of the nitrogen-filled fire extinguishing device is monitored online in real time through the detection sensor; the detection sensor is connected with the background server, and once the oil leakage situation is detected, an alarm is generated immediately, and the production, operation and maintenance personnel immediately inform the maintenance personnel of handling the oil leakage situation of the nitrogen-filled fire extinguishing device in time after finding the alarm signal.
3. The nitrogen-filled fire extinguishing device for the oil-immersed power transformer according to claim 1, wherein a transparent observation hole is formed in the observation hole cover, and a worker can directly check whether oil leakage occurs at the oil drain valve through the transparent observation hole without opening the cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921790664.7U CN210813615U (en) | 2019-10-23 | 2019-10-23 | Nitrogen-filled fire extinguishing device for oil-immersed power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921790664.7U CN210813615U (en) | 2019-10-23 | 2019-10-23 | Nitrogen-filled fire extinguishing device for oil-immersed power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210813615U true CN210813615U (en) | 2020-06-23 |
Family
ID=71269475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921790664.7U Active CN210813615U (en) | 2019-10-23 | 2019-10-23 | Nitrogen-filled fire extinguishing device for oil-immersed power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210813615U (en) |
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2019
- 2019-10-23 CN CN201921790664.7U patent/CN210813615U/en active Active
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