CN209766142U - Semi-closed double-jet airflow arc extinguishing lightning protection device - Google Patents
Semi-closed double-jet airflow arc extinguishing lightning protection device Download PDFInfo
- Publication number
- CN209766142U CN209766142U CN201920515163.1U CN201920515163U CN209766142U CN 209766142 U CN209766142 U CN 209766142U CN 201920515163 U CN201920515163 U CN 201920515163U CN 209766142 U CN209766142 U CN 209766142U
- Authority
- CN
- China
- Prior art keywords
- arc extinguishing
- jet
- airflow
- semi
- protection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a semi-closed double-jet airflow arc extinguishing lightning protection device, which mainly comprises an arc extinguishing body and a jet airflow component; the inner part of the arc extinguishing body is of a hollow structure, and a partition plate is longitudinally arranged at the middle position in the arc extinguishing body and divides the inner space of the arc extinguishing body into two groups of jet airflow channels; the upper end of the left jet airflow channel is fixedly provided with a jet airflow component, and the lower end of the left jet airflow channel is provided with an airflow nozzle which extends vertically downwards; the upper end of the jet airflow channel on the right side is an airflow jet which extends towards the side face of the arc extinguishing body, and the lower end of the jet airflow channel is fixedly provided with a jet airflow component. The utility model can restrain and control the arc path, and eliminate the harm of arc drift; the utility model discloses application range is wide, and a time install, can long-term used repeatedly, and the running cost is low, and the sensitivity is high, is favorable to electric power safety in production.
Description
Technical Field
The utility model belongs to lightning protection device that power transmission and distribution overhead line used relates to a semi-enclosed pair and sprays air current arc extinguishing lightning protection device and uses thereof.
background
At present, lightning stroke accidents are frequent in areas such as overhead power transmission and distribution lines, transformer substations, power plants and the like, the accidents caused by lightning strokes bring great challenges to safe, stable and reliable operation of a power system, and great influences are brought to national economic development and the living standard of people. How to effectively extinguish arc and prevent lightning and improve the safety, stability and reliability of a power system is always the key research content of a power department, and the existing arc extinguishing and preventing lightning means mainly protects the power system by additionally arranging an arc extinguishing and preventing lightning device in a circuit of the power system; but required from lightning protection device technology: the comprehensive consideration and analysis of the points of safety, effectiveness, durability, economy and maintainability show that the technical level of the existing lightning protection device is difficult to achieve in one step.
In this regard, the applicant and the related inventors have conducted a great deal of research on the technical requirements of the lightning protection device, and found that the following problems still exist in the existing lightning protection device: firstly, the arc extinguishing effect is not good, the condensation pole effect is generated when the electric arc passes through, the gas generating effect is not good due to the gas generating material baked by the low-temperature electric arc, and the arc extinguishing effect is not good due to the contradiction between the condensation pole effect and the arc extinguishing formed by the gas generating material baked at high temperature; secondly, the arc extinguishing sensitivity is not high, the arc extinguishing effect is not good when small electric arcs pass through the lower multi-cavity chamber, the large electric arcs can act correctly only when larger electric arcs pass through the lower multi-cavity chamber, relay protection action is caused when large electric arcs circulate, and tripping accidents exist, so that the multi-cavity arc extinguishing sensitivity is not good; durability is not high, gas-generating materials need to be baked at high temperature to generate gas, and the gas-generating materials in the arc-extinguishing device are consumed at high temperature, so that the durability is not good; fourthly, under the influence of the operation mode, an arc extinguishing blind area exists, so that the arc extinguishing and lightning protection effects are poor.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a semi-enclosed pair sprays air current arc extinguishing lightning protection device and uses, the device possess better validity and durability.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
A semi-enclosed double-jet airflow arc extinguishing lightning protection device comprises an arc extinguishing body and a jet airflow component; the inner part of the arc extinguishing body is of a hollow structure, a partition plate is longitudinally arranged at the middle position in the arc extinguishing body, the partition plate divides the inner space of the arc extinguishing body into two groups of jet airflow channels, and wall electrodes are arranged on the partition plate; the upper end of the left jet airflow channel is fixedly provided with a jet airflow component, and the lower end of the left jet airflow channel is provided with an airflow nozzle which extends vertically downwards; the upper end of the right jet airflow channel is provided with an airflow jet extending to the side surface of the arc extinguishing body, and the lower end of the right jet airflow channel is fixedly provided with a jet airflow component; the jet airflow components are provided with electrodes; the electrodes are divided into an upper electrode mounted on the gas jet assembly of the gas jet channel which is vertically opened downwards and a lower electrode mounted on the gas jet assembly of the gas jet channel which is opened towards the side surface of the arc extinguishing body.
the utility model discloses further explain, the jet stream subassembly includes a jet cylinder, a gas generator and an electrode; the gas generator is fixedly arranged at the end part of the jet gas flow channel, so that the inner space of the arc extinguishing body forms two groups of semi-closed structures, and the electrodes are arranged on the gas generator. The electrode is made of metal or nonmetal with strong conductivity and can guide electric arc to enter the jet airflow channel; the injection cylinder is made of a high-strength and strong-pressure-resistant non-conductive metal material; arc extinguishing gas pills triggered by induction current are arranged in the gas generator. The gas generator in the utility model can adopt the gas generator in the solid-phase arc-extinguishing lightning-protection device series of the invention achievement applied by the inventor in advance, and can also adopt the existing gas generator products which are used for lightning-proof arc-extinguishing of the transmission line on the current market, and the like.
The utility model discloses explain further, it is equipped with the arc ring to spout a section of thick bamboo opening part. The arc guiding ring is made of metal or nonmetal with strong conductivity, and is matched with the wall electrode to guide the arc to rotate to the jet airflow channel on the other side.
The utility model discloses explain further, the surface of arc extinguishing body be equipped with the shirt rim. The skirt edge is arranged to enhance creepage distance and avoid electric arc creeping discharge.
The utility model discloses explain further, wall electrode adopt lower electrode slice or compression arc-extinguishing tube or recoil pipe. The wall electrode can effectively disperse the arc energy, so that the arc can be extinguished more easily.
The utility model discloses explain further, to the opening downward sloping of the air current spout that the arc extinguishing body side extended the setting. The downward opening can effectively prevent rainwater or dust from entering the interior of the air jet flow channel.
The utility model discloses can carry out the arc extinguishing lightning protection on transmission line, transformer substation, circuit breaker, transformer or series compensation device and use.
The utility model discloses in the practical application in-process, install a semi-enclosed two injection air current arc extinguishing lightning protection device respectively at the both ends of the insulator chain of transmission line through fixed gold utensil to the upper electrode of the semi-enclosed two injection air current arc extinguishing lightning protection device's of the directional insulator chain's of lower electrode of the semi-enclosed two injection air current arc extinguishing lightning protection device's of the low pressure end of insulator chain high-pressure end, there is air gap between these two semi-enclosed two injection air current lightning protection arc extinguishing devices promptly. The semi-closed double-jet current arc extinguishing lightning protection device is arranged at the low-voltage end of the insulator string, and an upper electrode of the semi-closed double-jet current arc extinguishing lightning protection device is electrically connected with the low-voltage end of the insulator string; and the lower electrode of the semi-closed double-jet current arc extinguishing lightning protection device is electrically connected with the high-voltage end of the insulator string.
Or a semi-closed double-injection airflow arc-extinguishing lightning-protection device is arranged at the low-voltage end of the insulator string of the power transmission line through a fixed fitting, and an upper electrode of the semi-closed double-injection airflow arc-extinguishing lightning-protection device is directly and electrically connected with the fixed fitting; a high-voltage electrode is fixedly arranged at the high-voltage end of an insulator string of the power transmission line; the lower electrode of the semi-closed double-jet airflow arc extinguishing lightning protection device points to the high-voltage electrode, namely an air gap exists between the semi-closed double-jet airflow arc extinguishing lightning protection device and the high-voltage electrode.
Set up the air gap that insulating properties is more weak next door at insulator chain, the thunderbolt overvoltage that produces when can guaranteeing thunderbolt shaft tower or lightning conductor punctures preferentially the utility model discloses a semi-enclosed pair of injection air current arc extinguishing lightning protection device stops the electric arc and directly flashover on insulator chain surface to furthest's protection insulator chain.
the utility model discloses a theory of operation:
The arc extinguishing lightning protection device of the utility model is arranged on one side or two sides of the insulator chain, so that a preferential flashover air gap is generated near the insulator chain; through insulating cooperation, the lightning overvoltage that produces when thunderbolt shaft tower or lightning conductor breaks down the air gap passageway parallelly connected with insulator chain in priority, thereby protect insulator chain, the electric arc of formation gets into semi-enclosed pair of injection air current arc extinguishing lightning protection device, inside electric arc can get into this device semi-enclosed injection air current subassembly through last electrode traction, the induction power of the interior circulating current trigger gas generator of last electrode can produce an induced current, induced current and then trigger the arc extinguishing gas ball action, produce high-speed high-pressure gas and act on electric arc, most electric arc is because injection air current generator action, electric arc suffers the destroy incomplete. The rest electric arc enters the semi-closed jet airflow component on the other side along the wall electrode, an arc guide ring is arranged at the position of a jet cylinder hole of a jet airflow generating device in the semi-closed jet airflow component, the rest electric arc enters the jet airflow component in the semi-closed jet airflow component on the other side under the action of the arc guide ring and the wall electrode, the circulating electric arc current triggers an induction power supply of a gas generator to generate an induction current, the induction current further triggers an arc extinguishing gas pill to act, high-speed high-pressure gas is generated to act on the rest electric arc, and the electric arc is completely extinguished.
The utility model has the advantages and beneficial effect as follows:
1. The utility model discloses can retrain and management and control electric arc route, electric arc can introduce arc extinguishing passageway, eliminates the harm of electric arc drift, improves the security performance.
2. The high air pressure generated in the semi-closed injection component of the utility model can accelerate the recovery strength of the medium and extinguish the electric arc more quickly; meanwhile, the wall electrode can effectively disperse the energy of the electric arc, so that the electric arc is more easily extinguished, and the arc extinguishing effect is better.
3. The utility model has wide application range and is not influenced by the arrangement of the conducting wires, the tower shape of the tower and the polarity effect; the composite insulator core rod can be repeatedly used for a long time after being installed once, and the aging influence of the composite insulator core rod does not exist; only the jet gas generator needs to be replaced regularly, and the operation cost is low.
4. When the utility model works, the arc is extinguished in the impact arc extinguishing section and destroys the power frequency arc building channel, and the relay protection device is ensured not to be perceived, and the sensitivity is high; meanwhile, the problem of insulator flashover can be effectively prevented, the lightning trip-out rate of the power equipment is reduced, the power facilities are protected, the reliability of a power grid is improved, and the safety production of power is facilitated.
Drawings
Fig. 1 is a schematic view of an overall structure of an embodiment of the present invention.
Fig. 2 is a schematic view of the jet air flow assembly of the present invention.
fig. 3 is a schematic view of an application installation position of the present invention.
Fig. 4 is a schematic view of an overall structure of another embodiment of the present invention.
Fig. 5 is a schematic view of an overall structure of another embodiment of the present invention.
fig. 6 is a schematic view of the overall structure of another embodiment of the present invention.
sequence numbers and corresponding names in the figures:
1-insulator string, 2-low voltage end, 3-high voltage end, 4-arc extinguishing body, 5-jet airflow component, 6-airflow jet orifice, 7-wall electrode, 8-clapboard, 9-jet airflow channel, 10-skirt edge, 11-arc guide ring, 12-jet cylinder, 13-gas generator, 14-electrode, 141-upper electrode and 142-lower electrode.
Detailed Description
The invention will be described in further detail with reference to the following drawings and detailed description:
Example 1:
as shown in fig. 1, a semi-enclosed double-jet gas flow arc extinguishing lightning protection device comprises an arc extinguishing body 4 and a jet gas flow component 5; the inner part of the arc extinguishing body 4 is of a hollow structure, a partition plate 8 is further longitudinally arranged in the middle of the inner part of the arc extinguishing body 4, the partition plate 8 partitions the inner space of the arc extinguishing body 4 into two groups of jet airflow channels 9, and wall electrodes 7 are arranged on the partition plate 8; the upper end of the left jet airflow channel is fixedly provided with a jet airflow component, and the lower end of the left jet airflow channel is provided with an airflow nozzle which extends vertically downwards; the upper end of the right jet airflow channel is provided with an airflow jet extending to the side surface of the arc extinguishing body, and the lower end of the right jet airflow channel is fixedly provided with a jet airflow component; the air jet assembly is provided with electrodes 14; the electrode 14 is divided into an upper electrode 141 mounted on the gas injection assembly of the gas injection passage opened vertically downward and a lower electrode 142 mounted on the gas injection assembly of the gas injection passage opened toward the arc extinguishing body side.
As shown in fig. 2, the jet air flow module 5 is mainly composed of a jet cylinder 12 and an air generator 13; the injection cylinder 12 is embedded on the inner wall of the end part of the injection airflow channel 9, one end of the injection cylinder is fixedly connected with the gas generator 13, the opening of the other end of the injection cylinder is communicated with the injection airflow channel 9, and the gas generator 13 is fixedly arranged at the end part of the injection airflow channel 9, so that the inner space of the arc extinguishing body 4 forms two groups of semi-closed structures. An opening of the injection cylinder 12 is provided with an arc guide ring 11. The outer surface of the arc extinguishing body 4 is provided with a skirt edge 10. The wall electrode 7 adopts a lower electrode plate.
The practical application of the embodiment is as follows:
As shown in fig. 3, a semi-closed double-injection airflow arc-extinguishing lightning protection device is respectively installed at two ends of an insulator string 1 of a power transmission line through fixing hardware fittings, and a lower electrode of the semi-closed double-injection airflow arc-extinguishing lightning protection device at a low-voltage end points to an upper electrode of the semi-closed double-injection airflow arc-extinguishing lightning protection device at a high-voltage end, that is, an air gap exists between the two semi-closed double-injection airflow arc-extinguishing lightning protection devices.
Example 2:
As shown in fig. 4, the structure and principle of this embodiment are substantially the same as those of embodiment 1, except that the wall electrode 7 is a compressed arc tube. The compression arc-extinguishing tube adopts a ceramic tube, and an arc-guiding metal ball is arranged in the middle of the tube.
Practical application of the embodiment:
A semi-closed double-injection airflow arc-extinguishing lightning protection device is arranged at the low-voltage end 2 of an insulator string 1 of the power transmission line through a fixed fitting, and an upper electrode of the semi-closed double-injection airflow arc-extinguishing lightning protection device is directly and electrically connected with the fixed fitting; a high-voltage electrode is fixedly arranged at a high-voltage end 3 of an insulator string 1 of the power transmission line; the lower electrode of the semi-closed double-jet airflow arc extinguishing lightning protection device points to the high-voltage electrode, namely an air gap exists between the semi-closed double-jet airflow arc extinguishing lightning protection device and the high-voltage electrode.
Example 3:
as shown in fig. 5, the structure and principle of this embodiment are substantially the same as those of embodiment 1, except that the wall electrode 7 is a back-flushing pipe. The recoil pipe is a semi-closed pipe body with one end open and the other end provided with a lightning receiving electrode.
Example 4:
As shown in fig. 6, the structure and principle of this embodiment are substantially the same as those of embodiment 3, except that the opening of the gas flow nozzle extending to the arc extinguishing body side is inclined downward.
Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. A semi-enclosed double-jet airflow arc extinguishing lightning protection device comprises an arc extinguishing body (4) and an airflow jet assembly (5); the method is characterized in that: the interior of the arc extinguishing body (4) is of a hollow structure, a partition plate (8) is longitudinally arranged in the middle of the interior of the arc extinguishing body (4), the partition plate (8) partitions the interior of the arc extinguishing body (4) into two jet airflow channels (9), and a wall electrode (7) is arranged on the partition plate (8); the upper end of the left jet airflow channel is fixedly provided with a jet airflow component, and the lower end of the left jet airflow channel is provided with an airflow nozzle which extends vertically downwards; the upper end of the right jet airflow channel is provided with an airflow jet extending to the side surface of the arc extinguishing body, and the lower end of the right jet airflow channel is fixedly provided with a jet airflow component; the jet airflow components are provided with electrodes (14); the electrode (14) is divided into an upper electrode (141) mounted on a gas jet assembly of a gas jet passage opened vertically downward and a lower electrode (142) mounted on a gas jet assembly of a gas jet passage opened toward the arc extinguishing body side.
2. The semi-enclosed dual-injection airflow arc extinguishing lightning protection device according to claim 1, characterized in that: the jet air flow component (5) mainly comprises a jet cylinder (12) and a gas generator (13); the spraying cylinder (12) is inlaid on the inner wall of the end part of the spraying gas flow channel (9), one end of the spraying cylinder is fixedly connected with the gas generator (13), the opening of the other end of the spraying gas flow channel is communicated with the spraying gas flow channel (9), the gas generator (13) is fixedly arranged at the end part of the spraying gas flow channel (9), so that the inner space of the arc extinguishing body (4) forms two groups of semi-closed structures, and the electrode (14) is arranged on the gas generator (13).
3. The semi-enclosed dual-injection airflow arc extinguishing lightning protection device according to claim 2, characterized in that: an opening of the injection cylinder (12) is provided with an arc guide ring (11).
4. The semi-enclosed dual-injection airflow arc extinguishing lightning protection device according to claim 1, characterized in that: the outer surface of the arc extinguishing body (4) is provided with a skirt edge (10).
5. the semi-enclosed dual-injection airflow arc extinguishing lightning protection device according to claim 1, characterized in that: the wall electrode (7) adopts a lower electrode plate or a compression arc extinguishing tube or a recoil tube.
6. The semi-enclosed dual-injection airflow arc extinguishing lightning protection device according to claim 1, characterized in that: and the opening of the airflow nozzle extending to the side surface of the arc extinguishing body inclines downwards.
7. the semi-enclosed double jet airflow arc extinguishing lightning protection device according to any one of claims 1-6, characterized in that: the arc extinguishing and lightning protection device is applied to an electric transmission line, a transformer substation, a circuit breaker, a transformer or a series compensation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920515163.1U CN209766142U (en) | 2019-04-16 | 2019-04-16 | Semi-closed double-jet airflow arc extinguishing lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920515163.1U CN209766142U (en) | 2019-04-16 | 2019-04-16 | Semi-closed double-jet airflow arc extinguishing lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209766142U true CN209766142U (en) | 2019-12-10 |
Family
ID=68759476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920515163.1U Active CN209766142U (en) | 2019-04-16 | 2019-04-16 | Semi-closed double-jet airflow arc extinguishing lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209766142U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834063A (en) * | 2019-04-16 | 2020-10-27 | 段小嬿 | Semi-closed double-jet airflow arc extinguishing lightning protection device and application thereof |
-
2019
- 2019-04-16 CN CN201920515163.1U patent/CN209766142U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834063A (en) * | 2019-04-16 | 2020-10-27 | 段小嬿 | Semi-closed double-jet airflow arc extinguishing lightning protection device and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107732663B (en) | Coulomb force traction ball-type compressed jet airflow arc extinguishing device and ball-type arcing horn | |
| CN203250598U (en) | Anti-thunder tension insulator | |
| CN209766142U (en) | Semi-closed double-jet airflow arc extinguishing lightning protection device | |
| CN209766140U (en) | Semi-closed double-jet airflow arc extinguishing lightning protection device without air gap | |
| CN210326484U (en) | Semi-closed double-recoil arc extinguishing lightning protection device without air gap | |
| CN209766141U (en) | Semi-closed double-recoil arc-extinguishing lightning protection device | |
| CN111834065A (en) | Semi-closed double-jet airflow arc extinguishing lightning protection device without air gap and application thereof | |
| CN208336809U (en) | A kind of arc extinguishing lightning protection device of the big compression ratio in segmented air gap | |
| CN111834064B (en) | Semi-closed double-recoil arc-extinguishing lightning protection device and application thereof | |
| CN111834063A (en) | Semi-closed double-jet airflow arc extinguishing lightning protection device and application thereof | |
| CN215978729U (en) | Multi-cavity lightning-protection insulating cross arm | |
| CN111834904B (en) | Semi-closed double-recoil arc-extinguishing lightning protection device without air gap and application thereof | |
| CN204360853U (en) | The insulator string that a kind of anti-graphite bomb destroys | |
| CN103474183B (en) | The even pressure type degree of depth suppresses power frequency continued flow electric arc lightning protection inter space device | |
| CN109638650A (en) | One kind being based on multi-chamber line thunder protection device | |
| CN111834900A (en) | Semi-closed recoil comprehensive arc extinguishing lightning arrester without air gap | |
| CN209658599U (en) | A kind of comprehensive arc extinguishing arrester of the semi-enclosed recoil of no the air gap | |
| CN111834893A (en) | Double-recoil compression combined arc extinguishing lightning protection device | |
| CN203119291U (en) | Water type arc extinguishing clearance protection device for middle/low voltage distribution network | |
| CN101465179B (en) | Line pole type lightning protection insulator | |
| CN112332220A (en) | Built-in series gap lightning arrester of distribution line | |
| CN203931675U (en) | The lightning protection inter space protective device that a kind of arc extinguishing air-flow timesharing triggers | |
| CN111834068A (en) | Semi-closed recoil comprehensive arc extinguishing lightning arrester | |
| CN205565709U (en) | Intelligence remote control prevents built on stilts insulation protection device | |
| CN210467450U (en) | Novel trapezoidal bipolar arc extinguishing lightning protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |