CN201340277Y - Wall-hanging explosion-proof digital display control instrument - Google Patents
Wall-hanging explosion-proof digital display control instrument Download PDFInfo
- Publication number
- CN201340277Y CN201340277Y CNU2009200178066U CN200920017806U CN201340277Y CN 201340277 Y CN201340277 Y CN 201340277Y CN U2009200178066 U CNU2009200178066 U CN U2009200178066U CN 200920017806 U CN200920017806 U CN 200920017806U CN 201340277 Y CN201340277 Y CN 201340277Y
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- 238000004880 explosion Methods 0.000 claims abstract description 10
- 239000002360 explosive Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 230000001629 suppression Effects 0.000 abstract 2
- 238000012544 monitoring process Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000008676 import Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
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Abstract
The utility model provides a wall-hanging explosion-proof digital display control instrument, comprising an explosion-proof casing, an explosion-proof panel, an LED, an explosion-proof display window, a inch key, an explosion-proof operating key, a connection terminal, a cable leading-in hole, an installation member, a sensitive switch and an observe and control line mainboard. The installation members are fixed at upper and lower end of the rear panel of the explosion-proof casing, and the explosion-proof casing and the explosion-proof panel forms a enclosed explosion suppression structure together. An instrument core is fixed in the explosion-proof casing, the combination part betweent the explosion-proof operating key and the explosion-proof panel is an explosion suppression surface, bolt holes corresponding to the bolt holes at circumference of the explosion-proof casing for fixing is fixed at circumference of the explosion-proof panel, and the explosion-proof casing and the explosion-proof panel are both fixed by the bolts for sealing. The instrument of the utility model has advantages of simple structure, convenient operation and use, good stability and high reliability, which can satisfy the technical requirements of Petroleum and Chamistry Electric Appliance Product Quality Monitoring and Test Center.
Description
Technical field:
The utility model relates to explosion-proof digital display control unit, relates in particular to wall-hanging explosion-proof digital display controller.
Background technology:
Technical parameter in inflammable and explosive district to production runes such as temperature, pressure, liquid level, flow, electric current, voltage, frequency, rotating speeds carries out on-line measurement and control, usually adopt following two kinds of methods: the one, adopt Flameproof box, be non-explosion-proof common digital display controller table to be installed in one be not less than in the Flameproof box that the steel plate of 5mm or other metal material make with thickness, positive inner edge tempered glass is used to observe the shown data of digital display meter, and the case lid periphery compresses sealing with tens bolts.Adopt this technology, the Flameproof box volume is bigger; After installation was come into operation, each technical parameter in the digital display meter can not be adjusted or revise at any time, makes the maintenance work meeting bother very much, and use cost is higher.The 2nd, adopt the positive-pressure type explosion-proof tank: will non-explosion-proof common digital display meter be contained in one more airtight, adopt in the explosion-proof tank that is not less than the thick steel plate making of 3mm, positive double-deck protective door, inside door is used for box sealing, and external door glazing window is observed the shown data of digital display meter.Explosion-proof tank to keep the box house malleation, prevents that outside inflammable gas from entering in the explosion-proof tank by the pressurized air of outside air compressor machine feeding through dedusting, dehumidifying.The positive-pressure type explosion-proof tank also should dispose pressure control and low-voltage protection device.Adopt this technology, invest huge.The workload of installing, moving and safeguard is bigger, especially more uneconomical under the less situation of digital display meter.
The utility model content:
The purpose of this utility model is, overcome the deficiencies in the prior art part, a kind of wall-hanging explosion-proof digital display controller is provided, with explosion-proof digital display controller self explosion-proof structure and performance, exempt the making of explosion-proof tank, make explosion-proof digital display controller described in the utility model can be directly installed on inflammable and explosive regional on-line operation.
Wall-hanging explosion-proof digital display controller described in the utility model, also can be referred to as wall-hanging digital display controller, explosion-proof digital display measurement and control instrument or explosion-proof digital display meter, include explosion-proof casing, explosion-proof panel, explosion-proof display window, fine motion button, long cable section of ingoing line hole, light-emitting diode display, microswitch, connection terminal and detection and control circuitry mainboard and form.Explosion-proof casing comprises housing and protecgulum, is the main component of wall-hanging explosion-proof digital display controller described in the utility model, and integral body is the rectangular parallelepiped profile, and the upper and lower side of explosion-proof casing rear panel is provided with fabricated section, and the scene of being convenient to installs and fixes.Explosion-proof casing is relative airtight flame-proof type structure with explosion-proof panel common combination.Be provided with the instrument core in the explosion-proof casing, comprise the circuit mainboard, light-emitting diode display, fine motion button and connection terminal are formed.The circuit mainboard is the information processing centre of this instrument; Light-emitting diode display is used to show measured process parameter value, for example: temperature value, force value etc.; The technical parameter of Displaying Meter, for example: setting value, alarming value etc.Be provided with 4 explosive operation keys on the explosion-proof panel, can operate, adjust the instrumental technique parameter under the state of instrument energising operation in explosion-proof district; The junction of explosive operation key and explosion-proof panel is designed to explosion suppresion surface, and the width of explosion suppresion surface and machining precision can satisfy the requirement of GB3836.2-2000 standard " inside ignite not propagation of explosion ".The fine motion button is used for setting and modifying instrumental technique parameter; Connection terminal is used to import, the wiring of output signal line and instrument power line.The front shroud of explosion-proof casing is an explosion-proof panel of the present utility model, and the periphery of explosion-proof panel is provided with the fixed-use bolt hole corresponding with the bolt hole of explosion-proof casing periphery, and explosion-proof casing and explosion-proof panel are tightened fixing with bolt, guarantees sealing.Used bolt is recommended to use hexagon socket head cap screw, to guarantee attractive in appearance and safety.On the top of explosion-proof panel explosion-proof display window is set, is used to observe the shown value of inner light-emitting diode display.At the middle part of explosion-proof panel, be provided with the explosive operation key corresponding with inner fine motion button, said explosive operation key adopts the driven type press-key structure, thereby adjusts or revise the parameter of instrument at any time by the inner fine motion button of this driven type button operation.Be provided with the anti-explosion cable entrance hole in explosion-proof casing bottom, be used to import, the inlet wire of output signal line and instrument power line.
Wall-hanging explosion-proof digital display controller described in the utility model has adopted the meter housing with flame proof function, and built-in telemetry circuit plate etc. not only make it move in inflammable and explosive zone in IIB, IIA class, again can be in its redjustment and modification instrument parameter in service.And manufacturing cost decreases, and the expense of especially installing, moving and safeguard can reduce greatly, and reliability improves greatly.This explosion-proof meter housing design, making are according to GB GB3836.1-2000, GB3836.2-2000, GBT14048.1-2000 and GB/T6031-1998.The utility model one-piece construction is simple, and is easy for operation, good stability, and the reliability height meets the " technical requirement of oil and chemical industry electric equipment products quality supervision and test " center ".
Description of drawings:
Accompanying drawing 1 is the structural representation of the described wall-hanging explosion-proof digital display controller of utility model; Accompanying drawing 2 is front elevations.
The explosion-proof display window 5-of 1-explosion-proof casing 2 quick-fried panel 3-LED display 4-fine motion button 6-explosive operation key 7-connection terminal 8-long cable section of ingoing line hole 9-fabricated section
Embodiment:
Referring now to accompanying drawing 1 and accompanying drawing 2, be described as follows in conjunction with the embodiments: wall-hanging explosion-proof digital display controller described in the utility model, also can be referred to as wall-hanging digital display controller, explosion-proof digital display measurement and control instrument or explosion-proof digital display meter, include explosion-proof casing 1, explosion-proof panel 2, light-emitting diode display 3, explosion-proof display window 4, fine motion button 5, explosive operation key 6, connection terminal 7, long cable section of ingoing line hole 8, fabricated section 9, microswitch and detection and control circuitry mainboard and form.Explosion-proof casing 1 comprises housing and protecgulum, is the main component of wall-hanging explosion-proof digital display controller described in the utility model, and integral body is the rectangular parallelepiped profile, and the upper and lower side of explosion-proof casing 1 rear panel is provided with fabricated section 9, and the scene of being convenient to installs and fixes.Explosion-proof casing 1 is relative airtight flame-proof type structure with explosion-proof panel 2 common combinations.Be provided with the instrument core in the explosion-proof casing 1, comprise light-emitting diode display 3, fine motion button 5, connection terminal 7 and circuit mainboard composition.The circuit mainboard is the information processing centre of this instrument; Light-emitting diode display 3 is used to show measured process parameter value, for example: temperature value, force value etc.; The technical parameter of Displaying Meter, for example: setting value, alarming value etc.Be provided with 4 explosive operation keys 6 on the explosion-proof panel 2, can operate, adjust the instrumental technique parameter under the state of instrument energising operation in explosion-proof district; Explosive operation key 6 is designed to explosion suppresion surface with the junction of explosion-proof panel 2, and the width of explosion suppresion surface and machining precision can satisfy the requirement of GB3836.2-2000 standard " inside ignite not propagation of explosion ".Fine motion button 5 is used for setting and modifying instrumental technique parameter; Connection terminal 7 is used to import, the wiring of output signal line and instrument power line.The front shroud of explosion-proof casing 1 is an explosion-proof panel 2 of the present utility model, and the periphery of explosion-proof panel 2 is provided with the fixed-use bolt hole corresponding with the bolt hole of explosion-proof casing 1 periphery, and explosion-proof casing 1 and explosion-proof panel 2 both tighten fixingly with bolt, guarantee sealing.Used bolt is recommended to use hexagon socket head cap screw, to guarantee attractive in appearance and safety.On the top of explosion-proof panel 2 explosion-proof display window 4 is set, is used to observe the shown value of inner light-emitting diode display 3.At the middle part of explosion-proof panel 2, be provided with the explosive operation key 6 corresponding with inner fine motion button 5, said explosive operation key 6 adopts the driven type press-key structures, thereby adjusts or revise the parameter of instrument at any time by the inner fine motion button 5 of this driven type button operation.Be provided with explosion-proof type long cable section of ingoing line hole 8 in explosion-proof casing 1 bottom, be used to import, the inlet wire and the outlet of output signal line and instrument power line.Wall-hanging explosion-proof digital display controller described in the utility model has adopted the meter housing with flame proof function, and built-in telemetry circuit plate etc. not only make it move in inflammable and explosive zone in IIB, IIA class, again can be in its redjustment and modification instrument parameter in service.And manufacturing cost decreases, and the expense of especially installing, moving and safeguard can reduce greatly, and reliability improves greatly.This explosion-proof meter housing design, making are according to GB GB3836.1-2000, GB3836.2-2000, GBT14048.1-2000 and GB/T6031-1998.The utility model one-piece construction is simple, and is easy for operation, good stability, and the reliability height meets the " technical requirement of oil and chemical industry electric equipment products quality supervision and test " center ".
Claims (5)
1, wall-hanging explosion-proof digital display controller is characterized in that explosion-proof casing (1) is relative airtight flame-proof type structure with explosion-proof panel (2) common combination; Explosion-proof casing is provided with the instrument core in (1), comprises light-emitting diode display (3), fine motion button (5), connection terminal (7) and circuit mainboard composition; Explosion-proof panel (2) is provided with explosive operation key (6), explosive operation key (6) is designed to explosion suppresion surface with the junction of explosion-proof panel (2), on the top of explosion-proof panel (2) explosion-proof display window (4) is set, is used to observe the shown value of inner light-emitting diode display (3).
2, wall-hanging explosion-proof digital display controller according to claim 1 is characterized in that the upper and lower side of explosion-proof casing (1) rear panel is provided with fabricated section (9), and the scene of being convenient to installs and fixes.
3, wall-hanging explosion-proof digital display controller according to claim 1 is characterized in that at the middle part of explosion-proof panel (2), is provided with the explosive operation key (6) corresponding with inner fine motion button (5), and said explosive operation key (6) adopts the driven type press-key structure.
4, wall-hanging explosion-proof digital display controller according to claim 1, the periphery that it is characterized in that explosion-proof panel (2) is provided with the bolt hole corresponding fixed-use bolt hole peripheral with explosion-proof casing (1), and explosion-proof casing (1) and explosion-proof panel (2) both tighten fixing with bolt.
5, wall-hanging explosion-proof digital display controller according to claim 1 is characterized in that explosion-proof casing (1) bottom is provided with explosion-proof type long cable section of ingoing line hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200178066U CN201340277Y (en) | 2009-01-08 | 2009-01-08 | Wall-hanging explosion-proof digital display control instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200178066U CN201340277Y (en) | 2009-01-08 | 2009-01-08 | Wall-hanging explosion-proof digital display control instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201340277Y true CN201340277Y (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200178066U Expired - Fee Related CN201340277Y (en) | 2009-01-08 | 2009-01-08 | Wall-hanging explosion-proof digital display control instrument |
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| CN (1) | CN201340277Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104204733A (en) * | 2012-03-30 | 2014-12-10 | 克洛纳测量技术有限公司 | Measuring device housing having a viewing pane |
| RU169978U1 (en) * | 2016-08-08 | 2017-04-11 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | EXPLOSION-PROOF DEVICE FOR CONTROL AND MEASURING EQUIPMENT |
| CN108882590A (en) * | 2018-07-27 | 2018-11-23 | 扬中市南方矿用电器有限公司 | A kind of explosion-proof type mining display |
| CN109451687A (en) * | 2018-12-26 | 2019-03-08 | 南阳市中通防爆电机电器有限公司 | Novel intelligent positive pressure controller |
-
2009
- 2009-01-08 CN CNU2009200178066U patent/CN201340277Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104204733A (en) * | 2012-03-30 | 2014-12-10 | 克洛纳测量技术有限公司 | Measuring device housing having a viewing pane |
| CN104204733B (en) * | 2012-03-30 | 2016-08-24 | 克洛纳测量技术有限公司 | Measurement apparatus casing with observation window |
| RU169978U1 (en) * | 2016-08-08 | 2017-04-11 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | EXPLOSION-PROOF DEVICE FOR CONTROL AND MEASURING EQUIPMENT |
| CN108882590A (en) * | 2018-07-27 | 2018-11-23 | 扬中市南方矿用电器有限公司 | A kind of explosion-proof type mining display |
| CN109451687A (en) * | 2018-12-26 | 2019-03-08 | 南阳市中通防爆电机电器有限公司 | Novel intelligent positive pressure controller |
| CN109451687B (en) * | 2018-12-26 | 2023-08-11 | 南阳市中通防爆电机电器有限公司 | New Intelligent Positive Pressure Controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20100208 |