CN204759143U - Defeated wire and cable of 110KV connects explosion -proof equipment - Google Patents
Defeated wire and cable of 110KV connects explosion -proof equipment Download PDFInfo
- Publication number
- CN204759143U CN204759143U CN201520400445.9U CN201520400445U CN204759143U CN 204759143 U CN204759143 U CN 204759143U CN 201520400445 U CN201520400445 U CN 201520400445U CN 204759143 U CN204759143 U CN 204759143U
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- Prior art keywords
- cable
- explosion
- pressure relief
- extinguishing device
- protection equipment
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- 238000004880 explosion Methods 0.000 title abstract description 12
- 230000001012 protector Effects 0.000 claims description 40
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 11
- 239000002775 capsule Substances 0.000 claims description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 claims description 2
- 238000005422 blasting Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Abstract
The utility model discloses a explosion -proof equipment that the defeated wire and cable of 110KV connects, include: cable joint box (1), bimetallic strip temperature detect switch (2), pressure relief device (3), extinguishing device (4) and controller (5) be connected respectively with cable joint box (1), bimetallic strip temperature detect switch (2) set up on the shell of cable joint box (1), controller (5) are connected with bimetallic strip temperature detect switch (2), pressure relief device (3), extinguishing device (4) in proper order, form control circuit, pressure relief device (3) inside with cable joint box (1) but inside UNICOM, extinguishing device (4) inside with cable joint box (1) but inside UNICOM. The utility model discloses simple structure can in time put out a fire when blasting the conflagration, effectively explosion -proof, has guaranteed the safety of personnel with equipment, can also keep watch on cable joint's operating condition, timely feedback and early warning are dropped the loss to minimum.
Description
Technical field
The utility model relates to cable splice protection field, specifically refers to a kind of 110KV power line cable joint explosion-protection equipment.
Background technology
In the use procedure of 110KV power transmission line, cable splice event on fire from explosion is often sent out.Although the shank of power cable is enclosed in cable-joint protector box usually, but cause cable overheated or make moist thus the insulating property of insulating material and mechanical property are reduced and even lose because poor sealing in box, joint connect the reason such as not tight, run into and puncture, form short circuit, cause on fire from explosion.The cable splice normal working temperature of 110KV power transmission line is no more than 90 DEG C, when cable continuous high temperature or ambient humidity larger time, just there is hidden danger on fire from explosion.Existing cable connector box adopts metal shell mostly, once blast, metal fragment disperses everywhere, surrounding devices can be caused to damage, even threaten personal security.How explosion-proof cable splice is, becomes a problem demanding prompt solution.
Utility model content
The purpose of this utility model is to provide a kind of 110KV power line cable joint explosion-protection equipment, stamp out the flames in time when can ensure that cable splice occurs on fire, can prevent again cable-joint protector box from bursting and the device damage even casualties that causes, can also monitor cable-joint protector box inner chamber situation, for overhaul of the equipments provides reference.
The utility model is achieved through the following technical solutions: the bimetal plate temperature controling switch, pressure relief device, extinguishing device and the controller that comprise cable-joint protector box, be connected respectively with cable-joint protector box; Described bimetal plate temperature controling switch is arranged on the shell of cable-joint protector box; Described controller is connected with bimetal plate temperature controling switch, pressure relief device, extinguishing device successively, formation control loop; Described pressure relief device is inner can UNICOM with cable-joint protector box inner chamber; Described extinguishing device is inner can UNICOM with cable-joint protector box inner chamber.
The utility model explosion prevention function is mainly realized by pressure relief device, and fire-extinguishing function concurrently is mainly realized by extinguishing device.In blast process, the instantaneous rising of the temperature in cable-joint protector box, bimetal plate temperature controling switch closes, and forms loop; Rapid startup pressure relief device guides the gas expanded to enter pressure relief device, thus reduces the air pressure in cable-joint protector box, effectively avoids the personnel because cable-joint protector box blast produces and equipment damage.In addition, blast is usually with phenomenon on fire, and extinguishing device and pressure relief device start simultaneously, put out the flare in cable-joint protector box, damage are down to minimum.
Further, described pressure relief device comprises the blowdown valve be connected in control loop and the pressure release capsule be connected with blowdown valve.
During pressure release capsule original state, only there is a small amount of air inside, and by the inner chamber UNICOM of blowdown valve and cable-joint protector box, after blowdown valve is opened, the gas in cable-joint protector box can enter in pressure release capsule.
Further, described extinguishing device is dry-chemical extinguisher, comprises the air valve be connected with cable-joint protector box and the pressure measuring cylinder connecting air valve; Fire extinguishing dry powder in described extinguishing device adopts sodium chloride dry powder, graphite dry powder or sodium chloride and graphite mixed powder; Driving gas in described extinguishing device adopts carbon dioxide.
Due to the singularity of ignition of cable, select dry-chemical extinguisher, especially select the sodium chloride dry powder, the graphite dry powder that are driven by carbon dioxide, isolated air after both can having put out flare, can also the heat in air be absorbed rapidly and reduce environment temperature, there is good extinguishing effect.In fire extinguishing procedure, do not introduce liquid, also do not produce poisonous and harmful substance, safe and environmentally friendly.
Further, described explosion-protection equipment also comprises temperature sensor, humidity sensor and warning lamp; Described warning lamp comprises temperature warning lamp and humidity warning lamp; Described temperature sensor is connected with pressure relief device, extinguishing device, controller, temperature warning lamp successively; Described humidity sensor is connected with controller, humidity warning lamp successively.
Pressure relief device and extinguishing device are all the urgent countermeasures just started time on fire from explosion, and be provided with temperature sensor and humidity sensor, the state of cable splice is monitored in real time, if abnormal state, when even reaching the higher precarious position of probability on fire from explosion, can give warning in advance, be convenient to maintenance personal and investigate hidden danger in time, effective Accident prevention occurs.
Further, described temperature sensor, humidity sensor all adopt probe sensor, and probe inserts cable-joint protector box inner chamber.
The sensing point of sensor is arranged on the inner chamber of cable-joint protector box, measurement data is more accurate.
Further, the connection of described pressure relief device, extinguishing device, temperature sensor, humidity sensor and cable-joint protector box is airtight connection.
Further, temperature applicable range-10 DEG C ~ 100 DEG C during described bimetal plate temperature controling switch duty.
Further, the material of described pressure release capsule adopts the Heveatex or neoprene that expansion coefficient is larger.Heveatex or chloroprene rubber material have larger expansion coefficient, when ambient atmos enters pressure release capsule, can load more gas, reduce risk of explosion further in pressure release capsule.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model is by setting up extinguishing device, puts out flare in time when cable splice is on fire; The dry powder no liquid selected, nontoxic, safe and environmentally friendly.
(2) the utility model is by setting up pressure relief device, is dredged out outside box by the expanding gas in cable-joint protector box in time, thus the pressure in average box, prevent cable-joint protector box from bursting; And then the safety of support personnel's equipment;
(3) the utility model is by setting up temperature sensor, humidity sensor and warning lamp, carries out early warning to cable splice condition on fire, reminds related personnel to get rid of hidden danger in time, loss is down to minimum;
(4) the utility model two-circuit is arranged, and ensures the timely reaction of pressure relief device and extinguishing device, the normal operation of safeguards system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is main circuit schematic equivalent circuit of the present utility model.
Wherein: 1-cable-joint protector box; 2-bimetal plate temperature controling switch; 3-pressure relief device; 31-blowdown valve; 32-pressure release capsule; 4-extinguishing device; 41-air valve; 42-pressure measuring cylinder; 5-controller; 6-temperature sensor; 7-humidity sensor; 8-warning lamp; 81-temperature warning lamp; 82-humidity warning lamp.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
An explosion-protection equipment for 110KV power line cable joint, is characterized in that: the bimetal plate temperature controling switch (2), pressure relief device (3), extinguishing device (4) and the controller (5) that comprise cable-joint protector box (1), be connected respectively with cable-joint protector box (1); Described bimetal plate temperature controling switch (2) is arranged on the shell of cable-joint protector box (1); Described controller (5) is connected with bimetal plate temperature controling switch (2), pressure relief device (3), extinguishing device (4) successively, formation control loop; Described pressure relief device (3) is inner can UNICOM with cable-joint protector box (1) inner chamber; Described extinguishing device (4) is inner can UNICOM with cable-joint protector box (1) inner chamber.
The utility model explosion prevention function is mainly realized by pressure relief device 3, and fire-extinguishing function concurrently is mainly realized by extinguishing device 4.First KST flashing temperature adjustable bimetal sheet temperature detect switch (TDS) 2 is adopted according to the cable end working temperature (not higher than 90 DEG C) of setting, adjustment bimetal plate temperature controling switch 2 temperature of reaction to 100 DEG C; Described bimetal plate temperature controling switch 2 is arranged on the shell of cable-joint protector box 1, then pressure relief device 3, extinguishing device 4 is connected successively with controller 5, formation control loop; Described pressure relief device 3 is inner can UNICOM with cable-joint protector box 1 inner chamber, and extinguishing device 4 is inner can UNICOM with cable-joint protector box 1 inner chamber.
Once blast, the instantaneous rising of the temperature in cable-joint protector box 1, bimetal plate temperature controling switch 2 closes, and forms loop; Rapid startup pressure relief device 3, blowdown valve 31 is opened, and the gas of expansion is filled with in pressure release capsule 32, thus reduces the air pressure in cable-joint protector box 1, effectively avoids the personnel because cable-joint protector box 1 blast produces and equipment damage.Meanwhile, extinguishing device 4 starts, and air valve 41 is opened, and the carbon dioxide of compression is mingled with a large amount of sodium chloride dry powders, the ejection of graphite dry powder, covers flame and isolated air, also absorbs a large amount of heats, effectively control the intensity of a fire.The principle of extinguishing device is identical with existing flame snuffer principle of work, is known technology art, therefore repeats no more.
Embodiment 2:
The present embodiment increases temperature sensor 6 and temperature warning lamp 81 on the basis of embodiment 1.Temperature signal is transferred to controller 5 by temperature sensor 6, analyzes through controller 5: temperature is (0 DEG C-70 DEG C) in setting range, and green light (HG) is bright; Temperature is close to critical value (70 DEG C-80 DEG C); Amber light (HY) is bright; Temperature exceedes setting maximum temperature (90 DEG C), and red light (HR) is bright.Optimal design, when red light lights, warning device sounds the alarm.Other parts of the present embodiment are identical with embodiment 1, repeat no more.
Embodiment 3:
As shown in Figure 2, pressure relief device 3 and extinguishing device 4 are also connected to temperature sensor 6 with the loop of controller 5 in the present embodiment.If run on fire from explosion and bimetal plate temperature controling switch 2 fault fails to react in time, pressure SB4 closes by controller 5, loop UNICOM, starts pressure relief device 3 and extinguishing device 4.Other parts of the present embodiment are identical with embodiment 1, repeat no more.
The above; it is only preferred embodiment of the present utility model; not do any pro forma restriction to the utility model, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present utility model, all falls within protection domain of the present utility model.
Claims (8)
1. an explosion-protection equipment for 110KV power line cable joint, is characterized in that: the bimetal plate temperature controling switch (2), pressure relief device (3), extinguishing device (4) and the controller (5) that comprise cable-joint protector box (1), be connected respectively with cable-joint protector box (1); Described bimetal plate temperature controling switch (2) is arranged on the shell of cable-joint protector box (1); Described controller (5) is connected with bimetal plate temperature controling switch (2), pressure relief device (3), extinguishing device (4) successively, formation control loop; Described pressure relief device (3) is inner can UNICOM with cable-joint protector box (1) inner chamber; Described extinguishing device (4) is inner can UNICOM with cable-joint protector box (1) inner chamber.
2. the explosion-protection equipment of 110KV power line cable joint according to claim 1, is characterized in that: described pressure relief device (3) comprises the blowdown valve (31) be connected in control loop and the pressure release capsule (32) be connected with blowdown valve (31).
3. the explosion-protection equipment of 110KV power line cable joint according to claim 1, it is characterized in that: described extinguishing device (4) is dry-chemical extinguisher, comprise the air valve (41) be connected with cable-joint protector box (1) and the pressure measuring cylinder (42) connecting air valve (41); Fire extinguishing dry powder in described extinguishing device (4) adopts sodium chloride dry powder, graphite dry powder or sodium chloride and graphite mixed powder; Driving gas in described extinguishing device (4) adopts carbon dioxide.
4. the explosion-protection equipment of 110KV power line cable joint according to claim 1, is characterized in that: described explosion-protection equipment also comprises temperature sensor (6), humidity sensor (7) and warning lamp (8); Described warning lamp comprises temperature warning lamp (81) and humidity warning lamp (82); Described temperature sensor (6) is connected with pressure relief device (3), extinguishing device (4), controller (5), temperature warning lamp (81) successively; Described humidity sensor (7) is connected with controller (5), humidity warning lamp (82) successively.
5. the explosion-protection equipment of 110KV power line cable joint according to claim 4, is characterized in that: described temperature sensor (6), humidity sensor (7) all adopt probe sensor, and probe inserts cable-joint protector box (1) inner chamber.
6. the explosion-protection equipment of the 110KV power line cable joint according to claim 4 or 5, is characterized in that: described pressure relief device (3), extinguishing device (4), temperature sensor (6), humidity sensor (7) are airtight connection with the connection of cable-joint protector box (1).
7. the explosion-protection equipment of 110KV power line cable joint according to claim 1, is characterized in that: temperature applicable range-10 DEG C ~ 100 DEG C during described bimetal plate temperature controling switch (2) duty.
8. the explosion-protection equipment of 110KV power line cable joint according to claim 1, is characterized in that: the material of described pressure release capsule (32) adopts Heveatex or neoprene that expansion coefficient is larger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520400445.9U CN204759143U (en) | 2015-06-11 | 2015-06-11 | Defeated wire and cable of 110KV connects explosion -proof equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520400445.9U CN204759143U (en) | 2015-06-11 | 2015-06-11 | Defeated wire and cable of 110KV connects explosion -proof equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204759143U true CN204759143U (en) | 2015-11-11 |
Family
ID=54473830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520400445.9U Active CN204759143U (en) | 2015-06-11 | 2015-06-11 | Defeated wire and cable of 110KV connects explosion -proof equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN204759143U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310564A (en) * | 2016-10-18 | 2017-01-11 | 上海市政工程设计研究总院（集团）有限公司 | Flame spread preventing method for cable tunnel fires |
| CN109282906A (en) * | 2018-09-28 | 2019-01-29 | 国网山东省电力公司潍坊供电公司 | A kind of generated at connector of high-voltage line overheat automatic prompting device |
| CN110021907A (en) * | 2019-04-24 | 2019-07-16 | 安徽伊法拉电气有限公司 | A kind of 10KV cable joint protector |
| CN110501793A (en) * | 2019-07-01 | 2019-11-26 | 国网浙江省电力有限公司衢州供电公司 | The good cable splice closure of sealing effect |
| CN110501794A (en) * | 2019-07-01 | 2019-11-26 | 国网浙江省电力有限公司衢州供电公司 | Cable splice closure with humidity detecting function |
| CN113253075A (en) * | 2021-06-24 | 2021-08-13 | 广东电网有限责任公司中山供电局 | Monitoring device based on optical fiber sensor cable joint |
| CN115033034A (en) * | 2022-03-23 | 2022-09-09 | 四川宏源电力设计咨询有限公司 | Cable joint temperature control device |
-
2015
- 2015-06-11 CN CN201520400445.9U patent/CN204759143U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310564A (en) * | 2016-10-18 | 2017-01-11 | 上海市政工程设计研究总院（集团）有限公司 | Flame spread preventing method for cable tunnel fires |
| CN109282906A (en) * | 2018-09-28 | 2019-01-29 | 国网山东省电力公司潍坊供电公司 | A kind of generated at connector of high-voltage line overheat automatic prompting device |
| CN110021907A (en) * | 2019-04-24 | 2019-07-16 | 安徽伊法拉电气有限公司 | A kind of 10KV cable joint protector |
| CN110501793A (en) * | 2019-07-01 | 2019-11-26 | 国网浙江省电力有限公司衢州供电公司 | The good cable splice closure of sealing effect |
| CN110501794A (en) * | 2019-07-01 | 2019-11-26 | 国网浙江省电力有限公司衢州供电公司 | Cable splice closure with humidity detecting function |
| CN110501794B (en) * | 2019-07-01 | 2020-06-05 | 国网浙江省电力有限公司衢州供电公司 | Optical cable joint box with humidity detection function |
| CN110501793B (en) * | 2019-07-01 | 2020-07-17 | 国网浙江省电力有限公司衢州供电公司 | Optical cable joint box with good sealing effect |
| CN113253075A (en) * | 2021-06-24 | 2021-08-13 | 广东电网有限责任公司中山供电局 | Monitoring device based on optical fiber sensor cable joint |
| CN113253075B (en) * | 2021-06-24 | 2021-09-24 | 广东电网有限责任公司中山供电局 | Monitoring device based on optical fiber sensor cable joint |
| CN115033034A (en) * | 2022-03-23 | 2022-09-09 | 四川宏源电力设计咨询有限公司 | Cable joint temperature control device |
| CN115033034B (en) * | 2022-03-23 | 2023-12-12 | 四川宏源电力设计咨询有限公司 | Cable joint temperature control device |
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| GR01 | Patent grant |