CN102188865A - Explosion-proof pulse control instrument - Google Patents
Explosion-proof pulse control instrument Download PDFInfo
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- CN102188865A CN102188865A CN2011101357934A CN201110135793A CN102188865A CN 102188865 A CN102188865 A CN 102188865A CN 2011101357934 A CN2011101357934 A CN 2011101357934A CN 201110135793 A CN201110135793 A CN 201110135793A CN 102188865 A CN102188865 A CN 102188865A
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- explosion
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- circuit board
- casing
- pulse control
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Abstract
Provided is an explosion-proof pulse control instrument which comprises a control circuit board and a casing used to accommodate the control circuit board. The casing is made by metal materials and comprises a pedestal and a top cover in a seal buckling with the pedestal. Neither the wall thickness of the pedestal nor that of the top cover is less than 5mm. The control circuit board is sealed in the casing so that the sparks which are possible to be produced in the using process are separated from an external gas or dust environment to prevent explosions caused by the produced sparks. Moreover, even though explosions happen to the circuit board in the casing, explosions out of the casing are not caused because the explosions happened are sealed in the casing. Therefore, the production safety in the dust places is substantially improved.
Description
Technical field
The present invention relates to a kind of explosion-proof pulse control instrument.
Background technology
Pulse control instrument is mainly used in the Comprehensive Control of the low pressure auxiliary electrical equipment of sack cleaner, is the important component part of sack cleaner, and the efficiency of dust collection of deduster is played an important role.Growing along with the Environmental Protection in China industry, dust pelletizing system is also through being usually used in many volatile fuel gas and dust environment.At present because pulse control instrument does not also relate to explosion-proof field, in deduster work might since pulse control instrument and explosion caused, this has brought very big potential safety hazard to production.
Summary of the invention
The object of the present invention is to provide a kind of pulse control instrument with explosion prevention function.
For addressing the above problem the technical solution used in the present invention be: a kind of explosion-proof pulse control instrument, the casing that it comprises control circuit board and is used to hold control circuit board, described casing is made by metal material, it comprises the loam cake that base and base sealing fasten, and the wall thickness of described base and loam cake all is not less than 5mm.
Described loam cake of optimizing and base adopt the fine finishining steel plate to make, and have improved the explosion-proof performance of casing.
The periphery of described loam cake and base is respectively arranged with upper flange and lower flange, and described upper flange and lower flange fit tightly.
For improving the sealing of casing, show to offer seal groove on the described lower flange around base, be filled with sealing ring in the described seal groove, described seal groove width is 2～4mm, described lower flange edge to the outward flange of seal groove distance greater than 17mm.
Further, described upper flange and lower flange offer a plurality of corresponding screwed holes, are provided with the bolt that connects loam cake and base in each described screwed hole, and the minimum distance of described base outer wall and screwed hole inwall is not less than 9mm.
Further, better in order to make box sealing, be coated with the butter that is useful on sealing on the faying face of described upper flange and lower flange.
Further, the upper surface of the bottom surface of described base is provided with at least one back-up block that is used for fixing control circuit board, and the distance of the bottom surface of described control circuit board and base is not less than 10mm.
Described base side wall is provided with the introducing device of at least one lead, and described lead is with the equipment conducting of control circuit board and control circuit board control.
For guaranteeing that casing closely is connected with rotary switch, described base side wall is provided with the rotary power source switch, and the axle of described rotary power source switch is outer to be made by brass.
Owing to adopt such scheme, the present invention has the following advantages: control circuit board is sealed in the casing, the spark that control circuit board in use might be produced is separated with extraneous gas or dust atmosphere, prevent that effectively the spark that produces from setting off an explosion, even the circuit board in the casing is blasted, owing to be enclosed in the casing, and casing has certain explosion-proof performance, makes the blast in the casing can not cause the blast that casing is outer.Improved the security that the dust place produces greatly.
Description of drawings
Accompanying drawing 1 is casing front view of the present invention;
Accompanying drawing 2 is circuit left view of the present invention;
Accompanying drawing 3 is the A-A cutaway view of Fig. 1;
Accompanying drawing 4 is the partial view A of Fig. 3;
Accompanying drawing 5 is the partial view B of Fig. 3;
Wherein 1, casing; 2, control circuit board; 11, loam cake; 12, base; 111, display window; 112, control button; 113, upper flange; 121, lower flange; 122, back-up block; 123, introducing device; 124, rotary power source switch; 125, locating piece; 1111, bulge loop; 1112, safety glass; 1113, pressure ring; 1121, screwed hole; 1122, bolt; 1211, seal groove; 1212, sealing ring.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further details:
Shown in Fig. 2,3, it comprises control circuit board 2 and the casing 1 that control circuit board 2 is sealed, and described casing 1 is isolated with issuable spark or blast and extraneous gas or dust atmosphere on the control circuit board 2, can effectively must play explosion-proof.Casing 1 comprises base 12 and the loam cake 11 that is fastened on the base 12.Be printed with control circuit on the described control circuit board 2, this control circuit comprises, the main control module, with main control module input the button control module of control connection and the display circuit that is electrically connected with main control module output (because control circuit board 2 belongs to prior art, just do not do do not give unnecessary details at this) mutually.
In the present embodiment, loam cake 11 all adopts the fine finishining steel plate to make with base 12.As shown in Figure 3, wall thickness is to offer and the corresponding display window 111 in the position of described display circuit display tube on the loam cake 11 of 5mm, the workman just can be by the state of display window 111 monitoring in real time or adjusting controller, and this display window 111 has the bulge loop 1111 that extends to the center of display window 111, capping has safety glass 1112 in display window 111 and bulge loop 1111 formed spaces, casing 1 inner and be positioned at described display window 111 around be provided with the fixedly pressure ring 1113 of safety glass 1112, this pressure ring 1113 is fixed on by screw and covers; And be the sealing property that further improves casing 1, watering envelope between display window 111 and the safety glass 1112 has epoxy resin; In order to guarantee casing 1 antidetonation strength, the width of bulge loop 1111 is set at 11mm simultaneously, and the thickness setting of safety glass 1112 is 10mm; Also be provided with the control button 112 of button control module on the loam cake 11, and this control button 112 is a mechanical button, itself and control circuit board 2 tie points are positioned at casing 1 inside, and issuable spark is sealed in the casing 1 in feasible the controlling, and has further improved explosion-proof performance.
The upper surface of the bottom surface of base 12 is provided with four fixedly back-up blocks 122 of control circuit board 2, control circuit board 2 be fixed on the back-up block 122 and with the distance of base be 10mm; Described base 12 sidewalls are provided with the introducing device 123 of three leads, and described lead is with the equipment conducting of control circuit board 2 with control circuit board 2 controls; Described base 12 sidewalls are provided with rotary power source switch 124, and the axle of described rotary power source switch 124 is outer to be made by brass.The wall thickness of described base 12 is 5mm.
For further improving the anti-knock properties and the sealing of casing 1, the periphery of loam cake 11 and base 12 is respectively arranged with upper flange 113 and lower flange 121, upper flange 113 is one-body molded with loam cake 11, lower flange 121 is one-body molded with base 12, upper flange 113 and lower flange 121 fit tightly and scribble butter on the face, have improved the sealing of casing 1; As shown in Figure 1, upper flange 113 and lower flange 121 borders evenly offer 18 corresponding screwed holes 1121, be provided with the bolt 1122 that connects loam cake 11 and base 12 in each described screwed hole 1121, the distance of base 12 outer walls and screwed hole 1121 inwalls is 9mm.And offer the seal groove 1211 around base 12 on the upper surface of lower flange 121, be filled with sealing ring 1212 in the seal groove 1211, seal groove 1211 width are 2mm, and lower flange 121 edges to the outward flange distance of seal groove 1211 is 17mm.
The foregoing description only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this; can not limit protection scope of the present invention with this; all equivalences that spirit essence is done according to the present invention change or modify; as change the making material of casing; change position of control button or the like for another example, all should be encompassed within protection scope of the present invention.
Claims (10)
1. explosion-proof pulse control instrument, the casing (1) that it comprises control circuit board (2) and is used to hold control circuit board (2), it is characterized in that: described casing (1) is made by metal material, it comprises the loam cake (11) that base (12) and base (12) sealing fasten, and described base (12) all is not less than 5mm with the wall thickness of loam cake (11).
2. explosion-proof pulse control instrument as claimed in claim 1 is characterized in that: described loam cake (11) adopts the fine finishining steel plate to make with base (12).
3. explosion-proof pulse control instrument as claimed in claim 1, it is characterized in that: the periphery of described loam cake (11) and base (12) is respectively arranged with upper flange (113) and lower flange (121), and described upper flange (113) and lower flange (121) fit tightly.
4. explosion-proof pulse control instrument as claimed in claim 3, it is characterized in that: show to offer seal groove (1211) on the described lower flange (121) around base (12), be filled with sealing ring (1212) in the described seal groove (1211), described seal groove (1211) width is 2～4mm, described lower flange (121) edge to the outward flange of seal groove (1211) distance greater than 17mm.
5. explosion-proof pulse control instrument as claimed in claim 4, it is characterized in that: described upper flange (113) and lower flange (121) offer a plurality of corresponding screwed holes (1121), be provided with the bolt (1122) that connects loam cake (11) and base (12) in each described screwed hole (1121), the minimum distance of described base (12) outer wall and screwed hole (1121) inwall is not less than 9mm.
6. explosion-proof pulse control instrument as claimed in claim 5 is characterized in that: be coated with the butter that is useful on sealing on the faying face of described upper flange (113) and lower flange (121).
7. explosion-proof pulse control instrument as claimed in claim 1, it is characterized in that: described display window (111) has the bulge loop (1111) that extends to the center of display window (111), capping has safety glass (1112) in described display window (111) and the formed space of bulge loop (1111), described casing (1) is inner and be positioned at described display window (111) and be provided with the fixedly pressure ring (1113) of safety glass (1112) on every side, water envelope between described display window (111) and the safety glass (1112) epoxy resin is arranged, the width of described bulge loop (1111) is greater than 10mm, and the thickness of described safety glass (1112) is not less than 10mm.
8. explosion-proof pulse control instrument as claimed in claim 1, it is characterized in that: the upper surface of the bottom surface of described base (12) is provided with at least one back-up block that is used for fixing control circuit board (2) (122), and described control circuit board (2) is not less than 10mm with the distance of the bottom surface of base (12).
9. explosion-proof pulse control instrument as claimed in claim 1, it is characterized in that: described base (12) sidewall is provided with the introducing device (123) of at least one lead, and described lead is with the equipment conducting of control circuit board (2) with control circuit board (2) control.
10. explosion-proof pulse control instrument as claimed in claim 1 is characterized in that: described base (12) sidewall is provided with rotary power source switch (124), and the axle of described rotary power source switch (124) is outer to be made by brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101357934A CN102188865A (en) | 2011-05-24 | 2011-05-24 | Explosion-proof pulse control instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101357934A CN102188865A (en) | 2011-05-24 | 2011-05-24 | Explosion-proof pulse control instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102188865A true CN102188865A (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101357934A Pending CN102188865A (en) | 2011-05-24 | 2011-05-24 | Explosion-proof pulse control instrument |
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| Country | Link |
|---|---|
| CN (1) | CN102188865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552722A (en) * | 2017-09-25 | 2019-04-02 | 株式会社东芝 | The occlusive method of opening portion in container and container |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2131274Y (en) * | 1992-07-02 | 1993-04-28 | 大连经济技术开发区宏图机电技术工程公司 | Air-tight electrical control cabinet |
| CN201533460U (en) * | 2009-09-28 | 2010-07-21 | 重庆汉瞻仪器有限公司 | Explosion-proof electric apparatus control box |
| CN202096838U (en) * | 2011-05-24 | 2012-01-04 | 苏州协昌环保科技有限公司 | Anti-explosion pulse control instrument |
-
2011
- 2011-05-24 CN CN2011101357934A patent/CN102188865A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2131274Y (en) * | 1992-07-02 | 1993-04-28 | 大连经济技术开发区宏图机电技术工程公司 | Air-tight electrical control cabinet |
| CN201533460U (en) * | 2009-09-28 | 2010-07-21 | 重庆汉瞻仪器有限公司 | Explosion-proof electric apparatus control box |
| CN202096838U (en) * | 2011-05-24 | 2012-01-04 | 苏州协昌环保科技有限公司 | Anti-explosion pulse control instrument |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552722A (en) * | 2017-09-25 | 2019-04-02 | 株式会社东芝 | The occlusive method of opening portion in container and container |
| CN109552722B (en) * | 2017-09-25 | 2021-06-01 | 株式会社东芝 | Container and method for closing opening in container |
| CN113002915A (en) * | 2017-09-25 | 2021-06-22 | 株式会社东芝 | Fuel-clad pipe and method for closing opening in fuel-clad pipe |
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Application publication date: 20110921 |