CN114724884A - Low-temperature liquefaction prevention device for porcelain column type circuit breaker - Google Patents
Low-temperature liquefaction prevention device for porcelain column type circuit breaker Download PDFInfo
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- CN114724884A CN114724884A CN202210504955.5A CN202210504955A CN114724884A CN 114724884 A CN114724884 A CN 114724884A CN 202210504955 A CN202210504955 A CN 202210504955A CN 114724884 A CN114724884 A CN 114724884A
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- circuit breaker
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- beam box
- humidity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
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Abstract
The invention relates to the technical field of circuit breaker protection devices, in particular to a low-temperature liquefaction prevention device for a porcelain column type circuit breaker, which comprises a beam box, three circuit breaker pole columns, support columns, a heating device and a temperature control device, wherein the beam box is provided with the three circuit breaker pole columns at intervals, an arc extinguish chamber is arranged in each circuit breaker pole column, a pipeline capable of communicating the three arc extinguish chambers is arranged in the beam box, the support columns are arranged on the lower side of the beam box, the heating device is arranged on the beam box and comprises an inner heating sheet and an outer heating sheet, and at least one outer heating sheet is arranged on the outer side of the beam box at intervals. The invention has reasonable and compact structure and convenient use, the inner heating plate and the outer heating plate are respectively arranged to heat the inside and the outside of the beam box, and the start and stop of the heating plates are controlled by the cooperation of the sensor and the temperature controller, thereby preventing the liquefaction of sulfur hexafluoride in the circuit breaker and keeping the temperature of the beam box not to be overhigh, and having the characteristics of safety, simplicity, convenience and high efficiency.
Description
Technical Field
The invention relates to the technical field of circuit breaker protection devices, in particular to a low-temperature liquefaction prevention device for a porcelain column type circuit breaker.
Background
Sulfur hexafluoride circuit breakers using SF6The gas is the non-oiled switchgear of insulating medium and arc-extinguishing medium, its insulating property and arc-extinguishing characteristic are much higher than oil circuit breaker, SF6As an insulating gas, has a very high degree ofThe insulating material is a colorless, tasteless and non-flammable inert gas, and the insulating property of the insulating material far exceeds that of the traditional oil and air insulating medium. However, SF6Liquefaction occurs at low temperatures and the insulating properties are lost once liquefied, so that SF6The gas loses the due performance when used at the over-low temperature and under-low pressure, has wide Xinjiang area, various environments and complex climate, and particularly has cold climate and SF climate in winter6The abnormal air pressure defect of the equipment occurs frequently, and in recent years, companies have generated a plurality of breaker bodies and connecting pipelines SF6Gas liquefaction and other pressure anomaly defects seriously affecting SF6The electrical equipment is operated safely.
Disclosure of Invention
The invention provides a low-temperature liquefaction prevention device for a porcelain knob type circuit breaker, overcomes the defects of the prior art, and can effectively solve the problem of insulation performance failure caused by low-temperature liquefaction of the conventional sulfur hexafluoride circuit breaker.
The technical scheme of the invention is realized by the following measures: the utility model provides a porcelain column type circuit breaker prevents low temperature liquefaction device, including the crossbeam case, the circuit breaker utmost point post, the support column, heating device and temperature control device, the interval is equipped with three circuit breaker utmost point post on the crossbeam case, all be equipped with the explosion chamber in every circuit breaker utmost point post, the crossbeam incasement is equipped with the pipeline that can communicate three explosion chamber, crossbeam case downside is equipped with the support column, be equipped with heating device on the crossbeam case, heating device includes interior heating plate and external heating plate, crossbeam case outside interval is equipped with at least one external heating plate, the crossbeam incasement just staggers with the external heating plate and is provided with at least one interior heating plate, temperature control device includes ambient temperature sensor, interior temperature sensor, control box and the temperature controller who is located the control box, there is the control box through staple bolt fixed mounting on the support column, the control box downside is equipped with ambient temperature sensor, the crossbeam incasement is equipped with interior temperature sensor, ambient temperature sensor, The inner temperature sensors are all connected with a temperature controller, and the temperature controller is respectively connected with each inner heating piece and each outer heating piece.
The following is further optimization or/and improvement of the technical scheme of the invention:
the above may further include a forced start air switch connected to the outer heating sheet and the inner heating sheet, respectively.
The control box can be internally provided with a grounding wire.
The outer side of the beam box can be provided with a heat preservation layer, and the outer heating sheet is positioned in the heat preservation layer.
The temperature control device can further comprise a temperature and humidity controller, a temperature and humidity sensor and a drying heating sheet, the temperature and humidity controller and the temperature and humidity sensor are arranged in the control box respectively, and the drying heating sheet and the temperature and humidity sensor are connected with the temperature and humidity controller respectively.
The invention has reasonable and compact structure and convenient use, the inner heating plate and the outer heating plate are respectively arranged for heating the inside and the outside of the beam box, and the start and stop of the heating plates are controlled by the cooperation of the sensor and the temperature controller, thereby preventing the liquefaction of sulfur hexafluoride in the circuit breaker, and keeping the temperature of the beam box not to be overhigh, thereby having the characteristics of safety, simplicity, convenience and high efficiency.
Drawings
Fig. 1 is a schematic front view of an embodiment of the present invention.
Fig. 2 is a circuit block diagram of the present invention.
The codes in the figures are respectively: the device comprises a beam box 1, a breaker pole 2, a support column 3, an inner heating sheet 4, an outer heating sheet 5, an ambient temperature sensor 6, a temperature controller 7, a control box 8, a heat preservation layer 9, a temperature and humidity controller 10, an automatic control air switch 11, a forced start air switch 12 and a drying heating sheet 13.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described with reference to the following examples and figures:
the first embodiment is as follows: as shown in attached figures 1 and 2, the porcelain-column-type circuit breaker low-temperature liquefaction preventing device comprises a beam box 1, circuit breaker poles 2, support columns 3, a heating device and a temperature control device, wherein three circuit breaker poles 2 are arranged on the beam box 1 at intervals, arc extinguishing chambers are arranged in each circuit breaker pole 2, a pipeline capable of communicating the three arc extinguishing chambers is arranged in the beam box 1, the support column 3 is arranged on the lower side of the beam box 1, the heating device is arranged on the beam box 1 and comprises inner heating sheets 4 and outer heating sheets 5, at least one outer heating sheet 5 is arranged on the outer side of the beam box 1 at intervals, at least one inner heating sheet 4 is arranged in the beam box 1 and staggered with the outer heating sheet 5, the temperature control device comprises an environmental temperature sensor 6, an inner temperature sensor, a control box 8 and a temperature controller 7 positioned in the control box 8, the control box 8 is fixedly arranged on the support column 3 through a hoop, an environment temperature sensor 6 is arranged on the lower side of the control box 8, an inner temperature sensor is arranged in the crossbeam box 1, the environment temperature sensor 6 and the inner temperature sensor are both connected with a temperature controller 7, and the temperature controller 7 is respectively connected with each inner heating piece 4 and each outer heating piece 5.
According to the requirement, waterproof glue is coated and a waterproof joint is adopted in the connection process of the beam box 1 and the heating plate temperature and humidity sensor, and the like, so that water is prevented from entering the beam box 1 and the control box 8; the temperature controller 7 adopts the prior known technology, for example, the model is HDT-3200-YD-P; an automatic control air switch 11 is arranged between the temperature controller 7 and the power supply.
When the temperature control device is used, the temperature parameters of the temperature controller 7 are firstly set, the temperature parameters comprise start-stop temperature values of the inner heating piece 4 and the outer heating piece 5, when the first temperature controller receives that the ambient temperature detected by the ambient temperature sensor 6 is lower than minus 25 ℃, the inner heating piece 4 and the outer heating piece 5 are controlled to be electrified to start heating, when the ambient temperature detected by the ambient temperature sensor 6 is higher than minus 5 ℃, the temperature controller 7 controls the inner heating piece 4 and the outer heating piece 5 to stop heating, and when the inner temperature sensor detects that the temperature in the crossbeam box 1 is higher than 80 ℃, the temperature controller 7 controls the inner heating piece 4 and the outer heating piece 5 to stop heating. The adoption of the temperature control and heating mode is simpler and more convenient, and the inside and the outside of the beam box 1 can be simultaneously heated, so that the internal temperature of the beam box is ensuredThe degree is always higher than SF6Liquefaction temperature of gas to avoid maintenance of SF6The insulating property of gas reduces the potential safety hazard that the circuit breaker trouble exists.
The low-temperature liquefaction preventing device of the porcelain column type circuit breaker can be further optimized or/and improved according to actual needs:
example two: as shown in fig. 1 and 2, the heating device further comprises a forced start air switch 12, and the forced start air switch 12 is respectively connected with the outer heating sheet 5 and the inner heating sheet 4. With such an arrangement, manual control heating can be performed when the automatic control fails.
Example three: as shown in fig. 1 and 2, a ground wire is provided in the control box 8. Potential safety hazards caused by electrification of the control box 8 and internal electric appliances of the control box can be avoided through the arrangement.
Example four: as shown in fig. 1 and 2, an insulating layer 9 is arranged on the outer side of the beam box 1, and the outer heating sheet 5 is positioned in the insulating layer 9. The heat preservation layer 9 is arranged to reduce the temperature reduction speed, so that the use of the heating sheet can be reduced.
Example five: as shown in fig. 1 and 2, the temperature control device further comprises a temperature and humidity controller 10, a temperature and humidity sensor and a drying heating sheet 13, the temperature and humidity controller 10 and the temperature and humidity sensor are respectively arranged in the control box 8, and the drying heating sheet 13 and the temperature and humidity sensor are respectively connected with the temperature and humidity controller 10. When the temperature and humidity controller is used, the temperature and humidity in the control box 8 can be kept through the arrangement, when the temperature and humidity in the control box 8 is lower than a set value, the drying heating sheet 13 is controlled to start heating through the temperature and humidity controller 10, and when the temperature and humidity is higher than the set temperature, the heating is stopped, so that the normal work of electric components in the control box 8 can be kept.
The technical characteristics form an embodiment of the invention, which has strong adaptability and implementation effect, and unnecessary technical characteristics can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (8)
1. A porcelain column type circuit breaker low temperature liquefaction prevention device is characterized by comprising a beam box, circuit breaker pole columns, support columns, a heating device and a temperature control device, wherein three circuit breaker pole columns are arranged on the beam box at intervals, arc extinguish chambers are arranged in each circuit breaker pole column, a pipeline capable of communicating the three arc extinguish chambers is arranged in the beam box, the support column is arranged at the lower side of the beam box, the heating device is arranged on the beam box and comprises an inner heating sheet and an outer heating sheet, at least one outer heating sheet is arranged at the outer side of the beam box at intervals, at least one inner heating sheet is arranged in the beam box and staggered with the outer heating sheet, the temperature control device comprises an environment temperature sensor, an inner temperature sensor, a control box and a temperature controller positioned in the control box, the control box is fixedly installed on the support columns through hoops, the environment temperature sensor is arranged at the lower side of the control box, and the inner temperature sensor is arranged in the beam box, the environment temperature sensor and the inner temperature sensor are connected with a temperature controller, and the temperature controller is connected with each inner heating piece and each outer heating piece respectively.
2. The apparatus of claim 1, further comprising a forced start air switch connected to the outer heating plate and the inner heating plate, respectively.
3. The apparatus of claim 1 or 2, wherein a ground line is provided in the control box.
4. The apparatus of claim 1 or 2, wherein the beam box is provided at an outer side thereof with an insulation layer, and the outer heating plate is located in the insulation layer.
5. The apparatus of claim 3, wherein the beam box is provided with an insulation layer on an outer side thereof, and the outer heating plate is disposed in the insulation layer.
6. The device for preventing low-temperature liquefaction of the porcelain knob type circuit breaker according to claim 1, 2 or 5, wherein the temperature control device further comprises a temperature and humidity controller, a temperature and humidity sensor and a drying heating plate, the temperature and humidity controller and the temperature and humidity sensor are respectively arranged in the control box, and the drying heating plate and the temperature and humidity sensor are respectively connected with the temperature and humidity controller.
7. The device for preventing low-temperature liquefaction of a porcelain knob type circuit breaker as claimed in claim 3, wherein the temperature control device further comprises a temperature and humidity controller, a temperature and humidity sensor and a drying heating plate, the temperature and humidity controller and the temperature and humidity sensor are respectively arranged in the control box, and the drying heating plate and the temperature and humidity sensor are respectively connected with the temperature and humidity controller.
8. The device for preventing low-temperature liquefaction of a porcelain knob type circuit breaker as claimed in claim 4, wherein the temperature control device further comprises a temperature and humidity controller, a temperature and humidity sensor and a drying heating plate, the temperature and humidity controller and the temperature and humidity sensor are respectively arranged in the control box, and the drying heating plate and the temperature and humidity sensor are respectively connected with the temperature and humidity controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210504955.5A CN114724884A (en) | 2022-05-10 | 2022-05-10 | Low-temperature liquefaction prevention device for porcelain column type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210504955.5A CN114724884A (en) | 2022-05-10 | 2022-05-10 | Low-temperature liquefaction prevention device for porcelain column type circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN114724884A true CN114724884A (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210504955.5A Pending CN114724884A (en) | 2022-05-10 | 2022-05-10 | Low-temperature liquefaction prevention device for porcelain column type circuit breaker |
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| CN (1) | CN114724884A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925084A (en) * | 2006-09-11 | 2007-03-07 | 浙江华仪电器科技股份有限公司 | Porcelain knob breaker |
| CN202013833U (en) * | 2011-01-26 | 2011-10-19 | 新疆电力公司奎屯电业局 | Self-temperature-limit heating insulation sleeve of SF6 circuit breaker |
| CN106971899A (en) * | 2017-05-05 | 2017-07-21 | 郑州大学 | One kind prevents the liquefied intelligent temperature control system of extremely frigid zones SF6 breaker arc extinguishing media |
-
2022
- 2022-05-10 CN CN202210504955.5A patent/CN114724884A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925084A (en) * | 2006-09-11 | 2007-03-07 | 浙江华仪电器科技股份有限公司 | Porcelain knob breaker |
| CN202013833U (en) * | 2011-01-26 | 2011-10-19 | 新疆电力公司奎屯电业局 | Self-temperature-limit heating insulation sleeve of SF6 circuit breaker |
| CN106971899A (en) * | 2017-05-05 | 2017-07-21 | 郑州大学 | One kind prevents the liquefied intelligent temperature control system of extremely frigid zones SF6 breaker arc extinguishing media |
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