CN211853515U - Manual-automatic sulfur hexafluoride electrical equipment inflation device - Google Patents
Manual-automatic sulfur hexafluoride electrical equipment inflation device Download PDFInfo
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- CN211853515U CN211853515U CN201920130950.4U CN201920130950U CN211853515U CN 211853515 U CN211853515 U CN 211853515U CN 201920130950 U CN201920130950 U CN 201920130950U CN 211853515 U CN211853515 U CN 211853515U
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Abstract
The utility model relates to a manual-automatic sulfur hexafluoride electrical equipment inflation device, which is characterized by comprising a sulfur hexafluoride gas cylinder and a connecting joint which can be hermetically connected with the sulfur hexafluoride gas cylinder, wherein the sulfur hexafluoride gas cylinder is arranged in an automatic control heating device; the outlet end of the connecting joint is sequentially connected with a gasification device, a pressure reducing valve, a first one-way valve, a first outlet end of a two-position three-way valve and a self-sealing joint, a first sensor is arranged between the gasification device and the pressure reducing valve, and a density relay and a second pressure sensor are arranged between the first outlet end of the two-position three-way valve and the self-sealing joint; the second outlet end of the two-position three-way valve is connected with the inlet end of a flow meter, the outlet end of the flow meter is connected with the inlet ends of a first electromagnetic valve and a second electromagnetic valve, the outlet end of the first electromagnetic valve is connected with the inlet end of a second one-way valve, and the outlet end of the second one-way valve is connected with a self-sealing joint; can carry out two kinds of operating modes of manual and automatic operation, it is efficient to aerify.
Description
Technical Field
The patent of the utility model relates to a sulfur hexafluoride electrical equipment tonifying qi technical field especially relates to a manual from double-action sulfur hexafluoride electrical equipment aerating device.
Background
With the continuous improvement of the automation degree of the transformer substation, most transformer substations are unattended, and sulfur hexafluoride electrical equipment is widely applied to an electric power system with good performance. Sulfur hexafluoride gas is a gas having very stable chemical properties, and is widely used in various electrical devices as an excellent insulating and arc extinguishing medium. The insulating and arc extinguishing capability of the sulfur hexafluoride gas is mainly dependent on sufficient inflation pressure and high purity of the gas, gas leakage from electrical equipment can cause the density and pressure of the sulfur hexafluoride gas to be reduced, and the insulating strength and arc extinguishing capability of the sulfur hexafluoride gas are dependent on the density of the gas.
In the process of manufacturing sulfur hexafluoride electrical equipment or after the sulfur hexafluoride electrical equipment (such as a sulfur hexafluoride circuit breaker, a totally enclosed combined electrical device, a capacitor, a transformer, a switch cabinet and the like) is overhauled, pure sulfur hexafluoride gas needs to be filled into the sulfur hexafluoride electrical equipment. After the sulfur hexafluoride electrical equipment is put into operation, along with the increase of the operation time of the sulfur hexafluoride electrical equipment or the reasons of poor overhaul process and material and the like, the sulfur hexafluoride electrical equipment can generate gas leakage to cause pressure reduction, or faults of a density relay of the electrical equipment can falsely report low air pressure alarm and locking signals. The low pressure of sulfur hexafluoride gas of electrical equipment needs to be maintained, and at present, two main solutions are provided: firstly, power failure maintenance, density relay check, leakage point search and processing are carried out; and secondly, intermittently inflating and supplementing pressure in an electrified way. The former can not be handled under the condition of power consumption peak period or other non-blackable circumstances, and the latter needs real-time monitoring sulfur hexafluoride electrical equipment pressure change when aerifing, and operating time is long, and the work quality requires highly, easily the accident appears.
The inflation device of the sulfur hexafluoride electrical equipment used at the present stage adopts a manual inflation device or an online automatic inflation device, is complex to operate, is not easy to control the inflation speed, cannot accurately judge and prompt that the pressure of the sulfur hexafluoride gas cylinder is lower than 0.1Mpa, cannot effectively avoid the pressure reduction of the electrical equipment caused by the air leakage of an inflation pipeline, cannot judge whether the fault of a density relay of the electrical equipment is caused, increases the working strength of operation and inspection personnel, has low working efficiency, and is easy to cause the potential safety hazard of mis-inflation.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a sulfur hexafluoride electrical equipment aerating device of manual autonomy, as the name implies, "manual autonomy" indicates to possess manual and automatic two kinds of control mode, can accomplish sulfur hexafluoride electrical equipment's the work of aerifing by manual or automatic control, improves sulfur hexafluoride electrical equipment's the efficiency of aerifing and the gaseous utilization ratio of sulfur hexafluoride.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a manual-automatic sulfur hexafluoride electrical equipment inflation device comprises a sulfur hexafluoride gas cylinder and a connecting joint capable of being in sealing connection with the sulfur hexafluoride gas cylinder, wherein the sulfur hexafluoride gas cylinder is arranged in an automatic control heating device; the outlet end of the connecting joint is sequentially connected with a gasification device, a pressure reducing valve, a first one-way valve, a first outlet end of a two-position three-way valve and a self-sealing joint, a first sensor is arranged between the gasification device and the pressure reducing valve, and a density relay and a second pressure sensor are arranged between the first outlet end of the two-position three-way valve and the self-sealing joint; a second outlet end of the two-position three-way valve is connected with an inlet end of a flow meter, an outlet end of the flow meter is connected with inlet ends of a first electromagnetic valve and a second electromagnetic valve, an outlet end of the first electromagnetic valve is connected with an inlet end of a second one-way valve, an outlet end of the second one-way valve is connected with a self-sealing joint, and a third pressure sensor is arranged between the second one-way valve and the self-sealing joint; the outlet end of the second electromagnetic valve is connected with the inlet end of a throttle valve, and the outlet end of the throttle valve is connected with a self-sealing joint; the sulfur hexafluoride electrical equipment inflation device further comprises a controller for controlling the first pressure sensor, the second pressure sensor, the third pressure sensor, the density relay, the flowmeter, the first electromagnetic valve and the second electromagnetic valve.
Further, the sulfur hexafluoride electrical equipment inflation device further comprises a remote display system in communication with the controller.
Further, the controller communicates with a remote display system through a wireless transmission module.
Further, the remote display system displays data corresponding to each of the first pressure sensor, the second pressure sensor, the third pressure sensor, the density relay and the flow meter.
Further, the controller also controls and connects an alarm.
Further, the wireless transmission module is a WiFi wireless transmission module.
Furthermore, the gasification device is internally provided with a honeycomb-shaped channel, the heating device is arranged outside the channel, the function of ensuring that the sulfur hexafluoride gas filled in the sulfur hexafluoride electrical equipment can be fully gasified,
the operation is explained as follows: the first outlet end of the two-position three-way valve can be communicated with the first branch, the second branch and the third branch;
the first branch comprises a density relay, a second sensor and a self-sealing joint;
the second branch comprises a flowmeter, a first electromagnetic valve, a second one-way valve, a third sensor and a self-sealing joint;
the third branch comprises a flow meter, a second electromagnetic valve, a second one-way valve, a throttle valve, a third sensor and a self-sealing joint;
before the sulfur hexafluoride electrical equipment is inflated, the inlet end of the connecting joint is connected with the outlet end of the sulfur hexafluoride gas cylinder, and the outlet end of the self-sealing joint is connected with the inflation end of the sulfur hexafluoride electrical equipment.
(1) Manual inflation operation: and when the density relay of the sulfur hexafluoride electrical equipment judges that the pressure in the gas transmission pipeline at the self-sealing joint reaches the ending pressure, the pressure reducing valve is closed, and the whole manual inflation work of the sulfur hexafluoride electrical equipment is completed.
(2) Automatic inflation operation: and a second outlet end of the two-position three-way valve is communicated with a second branch, then the pressure reducing valve is adjusted to adjust the air inlet flow and pressure, and the pressure-adjusted gas enters an air chamber of sulfur hexafluoride electrical equipment from the second branch through the first one-way valve and the two-position three-way valve, so that the high-flow inflation process is realized. In the process, the gas pressure in the sulfur hexafluoride electrical equipment gas chamber is higher and higher, and the flow meter, the second pressure sensor and the third pressure sensor respectively collect the flow of the sulfur hexafluoride gas filled in the sulfur hexafluoride electrical equipment gas chamber and the pressure in the gas transmission pipeline at the self-sealing joint in real time.
When the controller judges that the pressure in the gas transmission pipeline at the self-sealing joint is close to the end pressure through the second pressure sensor and the third pressure sensor (the close standard can be set according to the actual use requirement, if the close standard is lower than the end pressure by 0.2MPa), the controller controls the first electromagnetic valve to be closed, and simultaneously controls the second electromagnetic valve to be conducted, namely the second branch is closed, and the third branch is connected. At the moment, the pressure-regulated gas enters the gas chamber of the sulfur hexafluoride electrical equipment through the first check valve, the two-position three-way valve, the flowmeter, the second electromagnetic valve, the throttle valve, the second check valve and the self-sealing joint. Due to the flow limiting effect of the throttle valve, sulfur hexafluoride gas is slowly filled into the sulfur hexafluoride electrical equipment gas chamber in a low-flow state. When the controller judges that the pressure in the gas transmission pipeline at the self-sealing joint reaches the final pressure through the second pressure sensor and the third pressure sensor, the controller controls the second electromagnetic valve to be closed, and the whole sulfur hexafluoride electrical equipment is automatically inflated.
When automatic inflation is carried out, the controller is communicated with the remote display system, the remote display system can display parameters such as inflation pressure and inflation flow, and meanwhile the remote display system can send instructions to the controller to control the completion of the inflation work of the whole sulfur hexafluoride electrical equipment. Therefore, the functions of online control, inflation and monitoring of the whole sulfur hexafluoride electrical equipment can be realized.
The utility model has the advantages as follows:
(1) the gasification device is additionally arranged on the pipeline between the pressure reducing valve and the connecting joint, so that sulfur hexafluoride gas filled into sulfur hexafluoride electrical equipment can be sufficiently gasified, the sulfur hexafluoride gas output by the sulfur hexafluoride gas cylinder is completely gaseous, and the temperature of the sulfur hexafluoride gas is ensured to be close to the ambient temperature, so that the phenomenon that the temperature of the sulfur hexafluoride gas is raised and expanded after being filled into the electrical equipment to cause the pressure to exceed the limit is avoided;
(2) the first check valve, the second check valve and the self-sealing joint are arranged in the sulfur hexafluoride electrical equipment, so that the sulfur hexafluoride electrical equipment can be safely inflated, gas leakage of the sulfur hexafluoride electrical equipment can be effectively avoided, and reliable operation of the sulfur hexafluoride electrical equipment is guaranteed;
(3) the utility model is provided with the flowmeter on the connecting pipeline between the two-position three-way valve and the first electromagnetic valve and the second electromagnetic valve, thus being capable of observing and counting the flow of the filled sulfur hexafluoride gas during automatic inflation;
(4) the first pressure sensor is arranged in front of the pressure reducing valve, so that the pressure of the sulfur hexafluoride gas cylinder can be monitored, and when the pressure of the sulfur hexafluoride gas cylinder is lower than a set value, the controller can control the alarm to send out an alarm signal to remind a person to be inspected to replace the sulfur hexafluoride gas cylinder;
(5) the density relay, the second pressure sensor and the third pressure sensor can monitor the pressure of sulfur hexafluoride electrical equipment, the monitored data can be compared with the pressure value displayed by the density relay of the sulfur hexafluoride electrical equipment, and whether the sulfur hexafluoride electrical equipment alarms because of poor sealing to cause low-pressure alarm signals (or low-pressure locking signals) or the sulfur hexafluoride electrical equipment faults and misinformation of the low-pressure alarm signals (or low-pressure locking signals) are preliminarily judged; therefore, the error inflation caused by the fault of the density relay of the sulfur hexafluoride electrical equipment can be avoided, and the operation and detection personnel can be reminded to carry out the tightness detection on the sulfur hexafluoride electrical equipment, so that the reliable operation of the sulfur hexafluoride electrical equipment is ensured;
(6) the utility model can be used for vacuumizing the inner pipeline of the device before inflation at the outlet end of the self-sealing joint,
the quality of the gas filled into the sulfur hexafluoride electrical equipment is prevented from being polluted by the impurity gas in the pipeline.
In summary, the sulfur hexafluoride electrical equipment inflation device of the utility model has high safety performance; the manual operation mode and the automatic operation mode can be carried out, and the manual operation mode and the automatic operation mode can be flexibly selected according to the situation; the intelligent control degree is high; the beneficial effects of high inflation efficiency and the like.
Drawings
FIG. 1 is a schematic view of the connection relationship of the present invention;
in the figure, an automatic control heating device 1, a sulfur hexafluoride gas cylinder 2, a connecting joint 3, a gasification device 4, a first pressure sensor 5, a pressure reducing valve 6, a first one-way valve 7, a two-position three-way valve 8, a density relay 9, a second pressure sensor 10, a flowmeter 11, a first electromagnetic valve 12, a second electromagnetic valve 13, a throttle valve 14, a second one-way valve 15, a third pressure sensor 16, a self-sealing joint 17 and sulfur hexafluoride electrical equipment 18.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 shows a manual and automatic sulfur hexafluoride electrical equipment 18 gas filling device, which comprises a sulfur hexafluoride gas cylinder 2 and a connecting joint 3 capable of being in sealing connection with the sulfur hexafluoride gas cylinder, wherein the sulfur hexafluoride gas cylinder 2 is arranged in an automatic control heating device 1; the outlet end of the connecting joint 3 is sequentially connected with a gasification device 4, a pressure reducing valve 6, a first one-way valve, a first outlet end of a two-position three-way valve 8 and a self-sealing joint 17, a first sensor is arranged between the gasification device 4 and the pressure reducing valve 6, and a density relay 9 and a second pressure sensor 10 are arranged between the first outlet end of the two-position three-way valve 8 and the self-sealing joint 17; a second outlet end of the two-position three-way valve 8 is connected with an inlet end of a flow meter 11, an outlet end of the flow meter 11 is connected with inlet ends of a first electromagnetic valve 12 and a second electromagnetic valve 13, an outlet end of the first electromagnetic valve 12 is connected with an inlet end of a second one-way valve 15, an outlet end of the second one-way valve 15 is connected with a self-sealing joint 17, and a third pressure sensor 16 is arranged between the second one-way valve 15 and the self-sealing joint 17; the outlet end of the second electromagnetic valve 13 is connected with the inlet end of a throttle valve 14, and the outlet end of the throttle valve 14 is connected with a self-sealing joint 17; the sulfur hexafluoride electrical equipment 18 gas filling device further comprises a controller for controlling the first pressure sensor 5, the second pressure sensor 10, the third pressure sensor 16, the density relay 9, the flow meter 11, the first electromagnetic valve 12 and the second electromagnetic valve 13.
The inflation device for the sulfur hexafluoride electrical equipment 18 further comprises a remote display system in communication with the controller, and the controller is in communication with the remote display system through a wireless transmission module. The remote display system displays data corresponding to each of the first pressure sensor 5, the second pressure sensor 10, the third pressure sensor 16, the density relay 9, and the flow meter 11.
The wireless transmission module can be a WiFi wireless transmission module.
Specifically, the inside of the gasification device 4 is a honeycomb-shaped channel, and the outside of the channel is a heating device, so that the sulfur hexafluoride gas filled into the sulfur hexafluoride electrical equipment 18 can be sufficiently gasified, the sulfur hexafluoride gas output by the sulfur hexafluoride gas cylinder 2 is completely gaseous, the temperature of the sulfur hexafluoride gas is ensured to be close to the ambient temperature, and the phenomenon that the temperature of the sulfur hexafluoride gas is raised and expanded after the sulfur hexafluoride gas is filled into the electrical equipment to cause the pressure to exceed the limit is avoided.
The controller is also in control connection with an alarm, and the alarm can be an audible and visual alarm. The alarm can be used for sending out an alarm signal when the pressure of the sulfur hexafluoride gas cylinder 2 is lower than a set value, and reminding a person to be inspected to replace the sulfur hexafluoride gas cylinder 2.
The operation of the gas filling device of the sulfur hexafluoride electrical equipment 18 is described as follows: a first outlet end of the two-position three-way valve 8 can be communicated with a first branch, a second branch and a third branch;
the first branch comprises a density relay 9, a second sensor and a self-sealing joint 17;
the second branch comprises a flowmeter 11, a first electromagnetic valve 12, a second one-way valve 15, a third sensor and a self-sealing joint 17;
the third branch comprises a flow meter 11, a second electromagnetic valve 13, a second one-way valve 15, a throttle valve 14, a third sensor and a self-sealing joint 17;
before the sulfur hexafluoride electrical equipment 18 is inflated, the inlet end of the connecting joint 3 is connected with the outlet end of the sulfur hexafluoride gas cylinder 2, and the outlet end of the self-sealing joint 17 is connected with the inflation end of the sulfur hexafluoride electrical equipment 18.
(1) Manual inflation operation: and (3) communicating a first outlet end of the two-position three-way valve 8 with a first branch, then adjusting the pressure reducing valve 6 to adjust the inlet flow and pressure, enabling the pressure-adjusted gas to enter a gas chamber of sulfur hexafluoride electrical equipment 18 through the first branch, and closing the pressure reducing valve 6 when the density relay 9 arranged on the sulfur hexafluoride electrical equipment 18 judges that the pressure in a gas transmission pipeline at the self-sealing joint 17 reaches a termination pressure, so that the whole manual inflation work of the sulfur hexafluoride electrical equipment 18 is completed.
(2) Automatic inflation operation: and a second outlet end of the two-position three-way valve 8 is communicated with a second branch, then the pressure reducing valve 6 is adjusted to adjust the air inlet flow and pressure, and the pressure-adjusted air enters an air chamber of the sulfur hexafluoride electrical equipment 18 from the second branch through the first one-way valve and the two-position three-way valve 8, so that the high-flow inflation process is realized. In the process, the gas pressure in the gas chamber of the sulfur hexafluoride electrical equipment 18 is higher and higher, and the flow meter 11, the second pressure sensor 10 and the third pressure sensor 16 respectively collect the flow rate of the sulfur hexafluoride gas filled in the gas chamber of the sulfur hexafluoride electrical equipment 18 and the pressure in the gas transmission pipeline at the self-sealing joint 17 in real time.
When the controller judges that the pressure in the gas transmission pipeline at the self-sealing joint 17 is close to the end pressure through the second pressure sensor 10 and the third pressure sensor 16 (the close standard can be set according to the actual use requirement, if the close standard is lower than the end pressure by 0.2Mpa), the controller controls the first electromagnetic valve 12 to be closed, and simultaneously controls the second electromagnetic valve 13 to be conducted, namely, the second branch is closed, and the third branch is connected. At this time, the pressure-regulated gas enters the gas chamber of the sulfur hexafluoride electrical equipment 18 through the first check valve, the two-position three-way valve 8, the flowmeter 11, the second electromagnetic valve 13, the throttle valve 14, the second check valve 15 and the self-sealing joint 17. Due to the flow restriction of the throttle valve 14, sulfur hexafluoride gas is slowly charged into the gas chamber of the sulfur hexafluoride electrical equipment 18 at a low flow rate. When the controller judges that the pressure in the gas transmission pipeline at the self-sealing joint 17 reaches the termination pressure through the second pressure sensor 10 and the third pressure sensor 16, the controller controls the second electromagnetic valve 13 to be closed, and the whole automatic inflation work of the sulfur hexafluoride electrical equipment 18 is completed.
During automatic inflation, the controller communicates with a remote display system, the remote display system can display parameters such as inflation pressure and inflation flow, and the remote display system can send instructions to the controller to control the completion of the inflation of the whole sulfur hexafluoride electrical equipment 18. Therefore, the functions of online control of charging and monitoring of the whole sulfur hexafluoride electrical equipment 18 can be realized.
The utility model has the advantages as follows:
(1) the utility model adds the gasification device 4 on the pipeline between the pressure reducing valve 6 and the connecting joint 3, which ensures that the sulfur hexafluoride gas filled in the sulfur hexafluoride electrical equipment 18 can be fully gasified, makes the sulfur hexafluoride gas output by the sulfur hexafluoride gas cylinder 2 become gaseous completely, and ensures that the temperature of the sulfur hexafluoride gas is close to the ambient temperature, thereby avoiding the over-limit pressure caused by the temperature rise and expansion after the sulfur hexafluoride gas is filled in the electrical equipment;
(2) the first check valve, the second check valve 15 and the self-sealing joint 17 are arranged in the sulfur hexafluoride electrical equipment, so that the sulfur hexafluoride electrical equipment 18 can be safely inflated, the gas leakage of the sulfur hexafluoride electrical equipment 18 can be effectively avoided, and the reliable operation of the sulfur hexafluoride electrical equipment 18 is ensured;
(3) the utility model is provided with a flowmeter 11 on the connecting pipeline between the two-position three-way valve 8 and the first electromagnetic valve 12 and the second electromagnetic valve 13, thus being capable of observing and counting the flow of the sulfur hexafluoride gas during automatic inflation;
(4) the first pressure sensor 5 is arranged in front of the pressure reducing valve 6, so that the pressure of the sulfur hexafluoride gas cylinder 2 can be monitored, and when the pressure of the sulfur hexafluoride gas cylinder 2 is lower than a set value, the controller can control the alarm to send out an alarm signal to remind a person to be inspected to replace the sulfur hexafluoride gas cylinder 2;
(5) the density relay 9, the second pressure sensor 10 and the third pressure sensor 16 can monitor the pressure of the sulfur hexafluoride electrical equipment 18, the monitored data can be compared with the pressure value displayed by the density relay 9 of the sulfur hexafluoride electrical equipment 18, and whether the alarm of the sulfur hexafluoride electrical equipment 18 is a low-pressure alarm signal (or a low-pressure locking signal) caused by poor sealing or a low-pressure alarm signal (or a low-pressure locking signal) caused by the fault misinformation of the density relay 9 of the sulfur hexafluoride electrical equipment 18 is preliminarily judged; therefore, the phenomenon that mistaken inflation is caused by the fault of the density relay 9 arranged on the sulfur hexafluoride electrical equipment 18 can be avoided, and the operation and detection personnel can be reminded to carry out tightness detection on the sulfur hexafluoride electrical equipment 18, so that the sulfur hexafluoride electrical equipment 18 can be ensured to operate reliably;
(6) the utility model discloses can be used to put the interior pipeline evacuation before aerifing and use at the exit end of proclaiming oneself joint 17, avoid the gaseous pollution of impurity in the pipeline to fill the gas quality in sulfur hexafluoride electrical equipment 18.
In summary, the sulfur hexafluoride electrical equipment 18 inflation device of the present invention has high safety performance; the manual operation mode and the automatic operation mode can be carried out, and the manual operation mode and the automatic operation mode can be flexibly selected according to the situation; the intelligent control degree is high; the beneficial effects of high inflation efficiency and the like.
Claims (5)
1. A manual-automatic sulfur hexafluoride electrical equipment inflation device comprises a sulfur hexafluoride gas cylinder and a connecting joint capable of being in sealing connection with the sulfur hexafluoride gas cylinder, and is characterized in that the sulfur hexafluoride gas cylinder is arranged in an automatic control heating device; the outlet end of the connecting joint is sequentially connected with a gasification device, a pressure reducing valve, a first one-way valve, a first outlet end of a two-position three-way valve and a self-sealing joint, a first sensor is arranged between the gasification device and the pressure reducing valve, and a density relay and a second pressure sensor are arranged between the first outlet end of the two-position three-way valve and the self-sealing joint; a second outlet end of the two-position three-way valve is connected with an inlet end of a flow meter, an outlet end of the flow meter is connected with inlet ends of a first electromagnetic valve and a second electromagnetic valve, an outlet end of the first electromagnetic valve is connected with an inlet end of a second one-way valve, an outlet end of the second one-way valve is connected with a self-sealing joint, and a third pressure sensor is arranged between the second one-way valve and the self-sealing joint; the outlet end of the second electromagnetic valve is connected with the inlet end of a throttle valve, and the outlet end of the throttle valve is connected with a self-sealing joint; the sulfur hexafluoride electrical equipment inflation device further comprises a controller for controlling the first pressure sensor, the second pressure sensor, the third pressure sensor, the density relay, the flowmeter, the first electromagnetic valve and the second electromagnetic valve.
2. The hand-actuated sulfur hexafluoride electrical equipment inflator of claim 1 further comprising a remote display system in communication with said controller.
3. The hand-powered or automatic sulfur hexafluoride electrical equipment inflator of claim 2, wherein said controller is in communication with a remote display system via a wireless transmission module.
4. The hand-operated or automatic sulfur hexafluoride electrical equipment inflator of claim 2, wherein said remote display system displays data corresponding to each of said first pressure sensor, said second pressure sensor, said third pressure sensor, said density relay, and said flow meter.
5. The hand-powered or automatic sulfur hexafluoride electrical equipment inflator of claim 1, wherein said controller further controls a connection alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130950.4U CN211853515U (en) | 2019-01-25 | 2019-01-25 | Manual-automatic sulfur hexafluoride electrical equipment inflation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130950.4U CN211853515U (en) | 2019-01-25 | 2019-01-25 | Manual-automatic sulfur hexafluoride electrical equipment inflation device |
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| Publication Number | Publication Date |
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| CN211853515U true CN211853515U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920130950.4U Expired - Fee Related CN211853515U (en) | 2019-01-25 | 2019-01-25 | Manual-automatic sulfur hexafluoride electrical equipment inflation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375049A (en) * | 2021-05-31 | 2021-09-10 | 国网安徽省电力有限公司亳州供电公司 | SF6 gas charging device |
| CN115325444A (en) * | 2022-08-08 | 2022-11-11 | 河南省日立信股份有限公司 | Manual upset of sulfur hexafluoride steel bottle is aerifyd small handcart |
-
2019
- 2019-01-25 CN CN201920130950.4U patent/CN211853515U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375049A (en) * | 2021-05-31 | 2021-09-10 | 国网安徽省电力有限公司亳州供电公司 | SF6 gas charging device |
| CN115325444A (en) * | 2022-08-08 | 2022-11-11 | 河南省日立信股份有限公司 | Manual upset of sulfur hexafluoride steel bottle is aerifyd small handcart |
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| CF01 | Termination of patent right due to non-payment of annual fee |