CN101358740B - High voltage insulation spark plug and explosion suppression junction box of ignition cable interface - Google Patents
High voltage insulation spark plug and explosion suppression junction box of ignition cable interface Download PDFInfo
- Publication number
- CN101358740B CN101358740B CN2008101961049A CN200810196104A CN101358740B CN 101358740 B CN101358740 B CN 101358740B CN 2008101961049 A CN2008101961049 A CN 2008101961049A CN 200810196104 A CN200810196104 A CN 200810196104A CN 101358740 B CN101358740 B CN 101358740B
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- Prior art keywords
- spark plug
- shell
- pressure cap
- junction box
- high voltage
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- 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.)
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- 238000009413 insulation Methods 0.000 title claims abstract description 21
- 238000004880 explosion Methods 0.000 title claims abstract description 12
- 230000001629 suppression Effects 0.000 title claims description 11
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 210000004907 gland Anatomy 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract 3
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 238000010304 firing Methods 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 5
- 231100001261 hazardous Toxicity 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Abstract
The present invention relates to a high-voltage insulation spark plug and ignition cable interface explosion-separation junction box, which is characterized in that the explosion-separation junction box consists of a shell (5) and a pressing cap (2), wherein, the front end of the shell (5) is connected with the rear end of the pressing cap (2); a sealing ring I (3) is embedded at the connection place between the front end of the shell (5) and the pressing cap (2); a sealing ring II (10) is embedded between the pressing cap (2) and an insulation bushing of a spark plug of the high-voltage insulation spark plug component; the rear end of the shell (5) is provided with a blind hole; sealing stuff (6) and a pressing cover (9) are arranged inside the blind hole, and a compression nut (8) is arranged behind the pressing cover (9); the compression nut (8) is connected with the blind hole at the rear end of the shell (5) in threading way. The explosion-separation junction box has anti-explosion function.
Description
(1) technical field
The present invention relates to the terminal box that is connected between a kind of high voltage insulation spark plug and the firing cable, be mainly used in the ignition system safety problem of the combustion apparatus that uses in classes such as solving oil field, colliery, offshore platform or two class hazardous areas and zone, be specially adapted to HTHP combustion apparatus-composite heat carrier generator product.The technical field that belongs to combustion apparatus.
(2) background technology
The high-energy ignition system course of work is as follows usually: power supply adopts 220V or 110V/50HZ alternating current, through transformer boost and the silicon stack rectification after become direct current, charge to energy-storage capacitor through current-limiting resistance again.Through behind the certain hour, when the voltage on the energy-storage capacitor reaches the discharge tube breakdown voltage, discharge tube is breakdown and discharge, energy stored on the energy-storage capacitor is added on the semiconductor spark plug by discharge tube, inductance, firing cable, conducting rod, and make semiconductor spark plug metal end face produce strong spark, thereby the mixture of fire fuel and oxygen-containing gas.After the energy on the energy-storage capacitor had discharged, discharge tube recovered blocking state, repeats the above-mentioned course of work later on.
In the actual ignition process, energy on the energy-storage capacitor discharges by semiconductor spark plug metal end face and produces spark, because the whole outer metallic surface of semiconductor spark plug is an one, therefore, when the high-energy ignition system worked, whole semiconductor spark plug outer metallic surface became the negative pole of high-energy ignition system.Like this, when the spark plug metal surface directly links to each other by screw thread or method of clamping with equipment, can cause the negative pole of ignition system directly to communicate with ground wire, thereby when spark plug internal semiconductor performance variation or when other problem occurring, connect the loose contact position at spark plug, spark plug and igniting interface and other and exist externally sparking dangerous, in the hazardous area that has natural gas, coal gas and other hazardous gas and the zone can't use.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, a kind of novel high-pressure insulation spark plug and explosion suppression junction box of ignition cable interface with flame proof function is provided.
The object of the present invention is achieved like this: a kind of novel high-pressure insulation spark plug and explosion suppression junction box of ignition cable interface, described explosion-proof connection box is surrounded by shell and pressure cap, the shell front end is connected with the pressure cap rear end, and set sealing ring I at shell front end and pressure cap composition surface place, between the insulating sleeve on the spark plug of pressure cap and described spark plug assembly, set sealing ring II, sealing ring I is used to strengthen sealing effectiveness, prevents that external leaks gas from entering terminal box inside.Simultaneously, for guaranteeing the other end sealing, prevent that hazardous gas enters interface position in the external environment condition, be provided with a blind hole at described outer casing back, be equipped with airtight and watertight padding and gland in the blind hole, be provided with clamp nut behind the gland, this clamp nut is connected with the blind threaded of outer casing back.Form hermetically-sealed construction by airtight and watertight padding, gland and clamp nut.Like this, the connecting interface of whole spark plug and firing cable has just been realized the flame proof protection by foregoing invention.
The present invention is a kind of flame proof design that connecting interface carried out between the metal threaded and firing cable to the semiconductor spark plug afterbody, can effectively solve the sparking hidden danger at interface position, make it Secure Application in a class or two class hazardous area and zones such as natural gas, coal gas, offshore platforms.
(4) description of drawings
Fig. 1 is the general structure schematic diagram of high voltage insulation spark plug of the present invention and explosion suppression junction box of ignition cable interface.
Fig. 2 is structure one schematic diagram of pressure cap of the present invention.
Fig. 3 is the A-A cut-away view of Fig. 2.
Fig. 4 is structure two schematic diagrames of pressure cap of the present invention.
Fig. 5 is the B-B cut-away view of Fig. 4.
Among the figure: high voltage insulation spark plug assembly 1, pressure cap 2, sealing ring I 3, interface module 4, shell 5, airtight and watertight padding 6, firing cable 7, clamp nut 8, gland 9, sealing ring II 10.
(5) specific embodiment
Referring to Fig. 1, Fig. 1 is high voltage insulation spark plug of the present invention and explosion suppression junction box of ignition cable interface structural representation.As can be seen from the figure, interface module 4 is connecting interfaces of high voltage insulation spark plug assembly 1 and firing cable 7, by this kind connected mode, the outer metallic surface of high voltage insulation spark plug effectively can be connected together with the 3rd layer of gauze screen of firing cable 7 by screw thread.For preventing the exposed sparking of 4 pairs of external environment conditions of interface module, be outside equipped with an explosion-proof connection box at described interface module 4, this explosion-proof connection box is surrounded by the pressure cap 2 of shell 5 and high voltage insulation spark plug assembly 1, described shell 5 front ends are shaped on external screw thread, be threaded by the internal thread of this external screw thread with described pressure cap 2 rear ends, and set sealing ring I 3 at shell 5 front ends and pressure cap 2 composition surfaces place, between the insulating sleeve on the spark plug of pressure cap 2 and described high voltage insulation spark plug assembly 1, set sealing ring II 10.Simultaneously, be provided with a blind hole, be equipped with airtight and watertight padding 6 and gland 9 in the blind hole, be provided with clamp nut 8 behind the gland 9, the blind threaded connection of this clamp nut 8 and shell 5 rear ends in described shell 5 rear ends.Form hermetically-sealed construction by airtight and watertight padding 6, gland 9 and clamp nut 8.
Described pressure cap 2 has two kinds of versions, and a kind of is that pressure cap 2 front and back two ends are shaped on external screw thread and internal thread respectively, and outer surface is shaped on pulling mouthful so that install, as Fig. 2～3 of four jiaos, hexagonal or other form; Another kind is that pressure cap 2 front ends are shaped on external screw thread, and ring flange is made in the rear end, and outer surface is shaped on pulling mouthful so that install of four jiaos, hexagonal or other form.Described shell 5 front ends are shaped on ring flange, are connected sealing by bolt and liner with described pressure cap 2.As Fig. 4～5.To guarantee the flame proof protection of spark plug tailing screw flight and firing cable interface.
Claims (5)
1. high voltage insulation spark plug and explosion suppression junction box of ignition cable interface, it is characterized in that described explosion-proof connection box is surrounded by shell (5) and pressure cap (2), described shell (5) front end is connected with pressure cap (2) rear end, and set sealing ring I (3) at shell (5) front end and pressure cap (2) composition surface place, between the insulating sleeve on the spark plug of pressure cap (2) and described high voltage insulation spark plug assembly, set sealing ring II (10), be provided with a blind hole in described shell (5) rear end, be equipped with airtight and watertight padding (6) and gland (9) in the blind hole, be provided with clamp nut (8) behind the gland (9), the blind threaded connection of this clamp nut (8) and shell (5) rear end.
2. a kind of high voltage insulation spark plug according to claim 1 and explosion suppression junction box of ignition cable interface, it is characterized in that described pressure cap (2) rear end is shaped on internal thread, shell (5) front end is shaped on external screw thread, is threaded by the internal thread of this external screw thread with described pressure cap (2) rear end.
3. a kind of high voltage insulation spark plug according to claim 2 and explosion suppression junction box of ignition cable interface is characterized in that described pressure cap (2) outer surface is shaped on four jiaos or hexagonal and pulls mouth.
4. high voltage insulation spark plug according to claim 1 and explosion suppression junction box of ignition cable interface, it is characterized in that: described pressure cap (2) rear end is shaped on ring flange, shell (5) front end is shaped on ring flange, and described ring flange is connected sealing by bolt and liner with described pressure cap (2).
5. a kind of high voltage insulation spark plug according to claim 4 and explosion suppression junction box of ignition cable interface is characterized in that described pressure cap (2) outer surface is shaped on four jiaos or hexagonal and pulls mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101961049A CN101358740B (en) | 2008-09-09 | 2008-09-09 | High voltage insulation spark plug and explosion suppression junction box of ignition cable interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101961049A CN101358740B (en) | 2008-09-09 | 2008-09-09 | High voltage insulation spark plug and explosion suppression junction box of ignition cable interface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101358740A CN101358740A (en) | 2009-02-04 |
| CN101358740B true CN101358740B (en) | 2010-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101961049A Expired - Fee Related CN101358740B (en) | 2008-09-09 | 2008-09-09 | High voltage insulation spark plug and explosion suppression junction box of ignition cable interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101358740B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780187A (en) * | 2012-06-06 | 2012-11-14 | 三一重型装备有限公司 | Cable connection device and explosion-proof electric control box |
| CN105526601A (en) * | 2014-10-09 | 2016-04-27 | 李秋达 | Vertical-hole housing and vertical-hole wire-outgoing igniter |
| CN108879581A (en) * | 2018-06-27 | 2018-11-23 | 中国石油天然气股份有限公司 | Cable connecting arrangement and cable connection methods |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201282323Y (en) * | 2008-09-09 | 2009-07-29 | 江苏大江石油科技有限公司 | Flame proof wiring box for spark plug and ignition cable interface |
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2008
- 2008-09-09 CN CN2008101961049A patent/CN101358740B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201282323Y (en) * | 2008-09-09 | 2009-07-29 | 江苏大江石油科技有限公司 | Flame proof wiring box for spark plug and ignition cable interface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101358740A (en) | 2009-02-04 |
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Owner name: JIANGSU DAJIANG PETROLEUM TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIANGSU XINDA PETROLEUM TECHNOLOGY SERVICE CO., LTD. Effective date: 20111014 |
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Effective date of registration: 20111014 Address after: 214446, 6, stone garden park, Jiangsu, Jiangyin Patentee after: Jiangsu Dajiang Petrotech Co., Ltd. Address before: 214446 No. 1240 West Binjiang Road, Jiangsu, Jiangyin Patentee before: Jiangsu Xinda Petroleum Technology Co., Ltd. |
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