CN109888639A - A kind of digitlization well site explosion-proof electrical distribution box - Google Patents
A kind of digitlization well site explosion-proof electrical distribution box Download PDFInfo
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- CN109888639A CN109888639A CN201910207377.7A CN201910207377A CN109888639A CN 109888639 A CN109888639 A CN 109888639A CN 201910207377 A CN201910207377 A CN 201910207377A CN 109888639 A CN109888639 A CN 109888639A
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Abstract
The invention discloses a kind of digitlization well site explosion-proof electrical distribution boxes of distribution box technical field, including cabinet, seal groove, limiting slot, shaft, locking device, telescopic rod, purification device, fan, filter plate, air hose, wireless receiving module, door-plate, connection buckle, sealing strip, link block, sealing hole, check-valves, processor, gas sensor, power module, display module, display, control button and wireless sending module, the cabinet includes seal groove and limiting slot, the shaft is in be transversely mounted on the inner cavity of limiting slot, the locking device is mounted on the intracavity bottom of cabinet, two telescopic rods are mounted on the inner cavity left and right sidewall of cabinet in symmetry shape, pass through the combination of the modules such as the purification device installed on device and processor, the air of cabinets cavity is purified, and gas detection information is shown in display On, to reach self-clearing purpose, property loss is reduced, the safety of staff is improved.
Description
Technical field
The present invention relates to distribution box technical field, specially a kind of digitlization well site explosion-proof electrical distribution box.
Background technique
Oil drilling is a high investment, high risk industry, there are field work, puts the spies such as more, wide, complex process
Point.Along with renovating for equipment, oil drilling well site electrical equipment protective grounding reliability, safety seem more prominent
Out.Since drilling machine type is varied, electrical equipment configuration is also not quite similar, and country, industry have also worked out relevant criterion.
Electrical equipment needs when configuring using distribution box, and in the environment in well site, compared to normal occupancy ring in air
There are excessive combustibles in border, contact with conventional distribution box, are easy to produce the case where fire even causes explosion, therefore
It needs to be equipped with explosion-proof electrical distribution box in well site, the explosion-proof principle of explosion-proof electrical distribution box is to increase its leakproofness in existing traditional technology, is kept away
Exempt from oxygen or air enters in shell, in this way, in the presence of not oxygen, it, will not even if shell body temperature is excessively high
Vigorous combustion occurs, explosion also just has no way of having occurred, and also a kind of is exactly the structural strength for increasing shell, for example, traditional technology
Middle that shell is made using plastic material, plastics not only have combustibility, and structural strength is relatively low, and the intracorporal original part of shell occurs quick-fried
It is fried to be easy to break through plastic housing, and then second of explosion (plastic housing explosion) occurs, serious consequence is caused, more by plastic housing
It is changed to metal shell, the structural strength of metal shell is larger, once its inside is exploded, explosion can be limited in shell
Portion will not impact the external world.
Being limited in that for both the above method can only be detected afterwards, cannot carry out explosion prevention in advance, then
Crisis is released, results in and generates staff that before exploding near distribution box being in danger but and do not know always no
Feelings, the life safety of the staff greatly damaged, while be easy to causeing the loss of property.
Summary of the invention
The purpose of the present invention is to provide a kind of digitlization well site explosion-proof electrical distribution boxes, to solve to mention in above-mentioned background technique
The advance preventing that is unable to out explodes and is easy the problem of damaging the life safety of staff while causing any property loss.
To achieve the above object, the invention provides the following technical scheme: a kind of digitlization well site explosion-proof electrical distribution box, including
Cabinet, seal groove, limiting slot, shaft, locking device, telescopic rod, purification device, fan, filter plate, air hose, wireless receiving mould
Block, door-plate, connection buckle, sealing strip, link block, sealing hole, check-valves, processor, gas sensor, power module, display mould
Block, display, control button and wireless sending module, the cabinet include seal groove and limiting slot, and the seal groove is opened in case
The front side wall of body, the limiting slot are opened at the top of the front side wall of cabinet, and the shaft is in be transversely mounted on the inner cavity of limiting slot, institute
The intracavity bottom that locking device is mounted on cabinet is stated, two telescopic rods are mounted on the inner cavity left and right sides of cabinet in symmetry shape
Wall, the purification device run through the top of cabinet, and the purification device includes fan, filter plate, air hose and wireless receiving module,
Two fans are mounted on one end of air hose, and the other end of the air hose is located at the bottom of purification device, and the filter plate is in
It is transversely mounted on the inside of purification device and runs through air hose, the door-plate is mounted on the front side wall of cabinet, the connection buckle installation
At the top of door-plate, the sealing strip is mounted on the front side wall of door-plate, and two link blocks are mounted on the front side wall two of door-plate
Side, the sealing hole are opened in the front side wall bottom of door-plate, and the check-valves is mounted on the front side wall bottom of door-plate, the processor
It is mounted in the middle part of the front side wall of door-plate, the gas sensor, power module, display module and wireless sending module pass through company
Wiring and processor electric connection, the display and control button are installed in the rear wall of door-plate, and the display passes through
Connecting line and display module are electrically connected, and the control button is connect by connecting line with processor, the wireless sending module
It is wirelessly connected wireless receiving module.
Preferably, the position of the connection buckle and the position of shaft are corresponding, the position of the sealing strip and the position of seal groove
Correspondence is set, one end of the telescopic rod is connect with link block.
Preferably, the front side wall bottom of the door-plate is equipped with handle.
Preferably, the rear wall of the gas sensor is equipped with adhesive sheet, and the rear wall and door-plate of the adhesive sheet are viscous
It connects.
Preferably, the filter plate includes frame, screen board and sponge plate, and the screen board and sponge plate are separately mounted to
At the top and bottom of the inner wall of frame.
Preferably, the locking device includes fixed plate, spring and rubber sheet gasket, and the fixed plate is connect with cabinet, institute
The top that spring is mounted on fixed plate is stated, the rubber sheet gasket is mounted on the top of spring.
Compared with prior art, the beneficial effects of the present invention are: passing through a kind of digitlization well site explosion-proof electrical distribution box
Setting, it is reasonable in design, the rubber sheet gasket on locking device is taken out from sealing hole, door-plate is lifted by handle, by stretching
Contracting bar end of door plate is supported, and by the shaft of connection buckle and top of the box at the top of door-plate, makes to connect between door-plate and cabinet,
In normal use, pass through the connection gap between seal groove and the combination end of door plate and cabinet of sealing strip between door-plate and cabinet
It is sealed, prevents air from entering, the rubber sheet gasket on locking device is extracted out from sealing hole, the elastic force of spring is by rubber sheet gasket
It retracts, so that end of door plate generates the movement of tightening, the gas installed on door-plate front side wall while rubber sheet gasket seals sealing hole
Body sensor detects the gas of cabinets cavity, when generating special gas or gas density is more than setting value, will believe
Breath is transferred to processor, and processor, which issues, executes order to wireless sending module and display module, and display module shows information
Over the display, it is checked for staff, wireless sending module is sent to wireless receiving mould for signal is executed by wireless transmission
Block, wireless receiving module receive control fan rotation after signal, and outside air is transported to cabinets cavity by air hose by fan, together
When be filtered by air of the filter plate to conveying so that the air of cabinets cavity carries out circulation replacement, the air of replacement from
Check-valves outflow, to achieve the purpose that prevent the case where causing cabinet to explode due to gas to cabinet inner air-cleaning
Occur, facilitates the reception of information, improve the safety of personnel, reduce loss.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is purification device structural schematic diagram of the present invention；
Fig. 3 is door-plate front side wall structural schematic diagram of the present invention；
Fig. 4 is door-plate rear wall structural schematic diagram of the present invention.
In figure: 100 cabinets, 110 seal grooves, 120 limiting slots, 121 shafts, 130 locking devices, 140 telescopic rods, 200 are only
Makeup set, 210 fans, 220 filter plates, 230 air hoses, 240 wireless receiving modules, 300 door-plates, 310 connection buckles, 320 sealing strips,
330 link blocks, 340 sealing holes, 350 check-valves, 360 handles, 400 processors, 410 gas sensors, 420 adhesive sheets, 430 electricity
Source module, 440 display modules, 441 displays, 450 control buttons, 460 wireless sending modules.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The invention provides the following technical scheme: a kind of digitlization well site explosion-proof electrical distribution box, is used for advance preventing distribution box
The explosion generated due to gas improves distribution box safety, please refers to Fig. 1-4, including cabinet 100, seal groove 110, limit
Position slot 120, shaft 121, locking device 130, telescopic rod 140, purification device 200, fan 210, filter plate 220, air hose 230,
Wireless receiving module 240, door-plate 300, connection buckle 310, sealing strip 320, link block 330, sealing hole 340, check-valves 350, place
Manage device 400, gas sensor 410, power module 430, display module 440, display 441, control button 450 and wireless transmission
Module 460；
Referring to Fig. 1, cabinet 100 includes seal groove 110 and limiting slot 120, and seal groove 110 is opened in cabinet 100
Front side wall, limiting slot 120 are opened at the top of the front side wall of cabinet 100, and shaft 121 is in be transversely mounted on the inner cavity of limiting slot 120, envelope
The intracavity bottom that device 130 is mounted on cabinet 100 is closed, two telescopic rods 140 are mounted on the inner cavity or so of cabinet 100 in symmetry shape
Side wall, specifically, shaft 121 is welded on the inner cavity of limiting slot 120, locking device 130 is welded on the intracavity bottom of cabinet 100,
Telescopic rod 140 is welded on the inner cavity left and right sidewall of cabinet 100 in symmetry shape, and cabinet 100 is used to protect the device of inner cavity, seal groove
110 seal for cooperating with sealing strip 320, and limiting slot 120 is used for fixing connection buckle for installing connection buckle 310, shaft 121
310；
Referring to Fig. 2, purification device 200 runs through the top of cabinet 100, and purification device 200 includes fan 210, mistake
Filter plate 220, air hose 230 and wireless receiving module 240, two fans 210 are mounted on one end of air hose 230, air hose 230 it is another
End is located at the bottom of purification device 200, and filter plate 220 is in the inside for being transversely mounted on purification device 200 and runs through air hose 230,
Specifically, fan 210 includes flabellum and motor, the rear wall of motor is bolted limit plate, and limit plate is welded on air hose 230
Inner wall, filter plate 220 are slidably connected with purification device 200, and the motor of wireless receiving module 240 and fan 210 passes through connecting line
Connection, motor connect with external power supply, purification device 200 for being purified to 100 inner cavity air of cabinet, fan 210 with divide
Pipe is used for the flowing of air, and filter plate 220 is used to be filtered purification, wireless receiving module 240 to the air for entering air hose 230
Transmission for information；
Referring to Fig. 3-4, door-plate 300 is mounted on the front side wall of cabinet 100, and connection buckle 310 is mounted on door-plate 300
Top, sealing strip 320 are mounted on the front side wall of door-plate 300, and two link blocks 330 are mounted on the front side wall two sides of door-plate 300, close
Sealing of hole 340 is opened in the front side wall bottom of door-plate 300, and check-valves 350 is mounted on the front side wall bottom of door-plate 300, specifically, door-plate
It is attached in the shaft 121 being buckled in limiting slot 120 between 300 and cabinet 100 by connection buckle 310, sealing strip 320 and door
Plate 300 is bonded, and link block 330 is welded on the front side wall two sides of door-plate 300, and check-valves 350 is bolted with door-plate 300, door-plate
300 are sealed cabinet 100 for connecting with cabinet 100, and connection buckle 310 is used to cooperate end of door plate 300 to carry out with shaft 121
Rotation, sealing strip 320 are used to cooperate the junction of end of door plate 300 and cabinet 100 to be sealed processing with seal groove 110, connect
Block 330 is used to cooperate end of door plate 300 to be supported with telescopic rod 140, and sealing hole 340 is used for and the rubber on locking device 130
Washer cooperation is sealed processing, and check-valves 350 is used for 100 inner cavity air circulation of cabinet；
Referring to Fig. 3, processor 400 is mounted in the middle part of the front side wall of door-plate 300, gas sensor 410, power supply mould
Block 430, display module 440 and wireless sending module 460 are electrically connected by connecting line and processor 400,441 He of display
Control button 450 is installed in the rear wall of door-plate 300, and display 441 is electrically connected by connecting line and display module 440,
Control button 450 is connect by connecting line with processor 400, and wireless sending module 460 is wirelessly connected wireless receiving module 240,
Specifically, processor 400, power module 430, display module 440 and wireless sending module 460 are mounted on door-plate by bolt
In the middle part of 300 front side wall, gas sensor 410 uses linear sensor, and display 441 and control button 450 pass through spiral shell
Bolt runs through door-plate 300, and power module 430 is made of battery pack and transformer, and processor 400 is processed and executed for information,
Gas sensor 410 is used for the detection of light concentration gas, and power module 430 is for being powered electronic component, display module
440 for converting image information for digital signal, and wireless sending module 460 is used for the wireless transmission of information, for it is wireless
Receiving module 240 is used cooperatively, and control button 450 is used for the operation of staff, and display 441 is for the aobvious of image information
Show.
In the specific use process, the rubber sheet gasket on locking device 130 is taken out from sealing hole 340, passes through handle 360
Door-plate 300 is lifted, is supported by 140 end of door plate 300 of telescopic rod, the connection buckle 310 and cabinet of 300 napex of door-plate are passed through
The shaft 121 at 100 tops, makes to connect between door-plate 300 and cabinet 100, in normal use, between door-plate 300 and cabinet 100
It is sealed by the connection gap between seal groove 110 and combination end of door plate 300 and the cabinet 100 of sealing strip 320, prevents sky
Gas enters, and the rubber sheet gasket on locking device 130 is extracted out from sealing hole 340, and the elastic force of spring retracts rubber sheet gasket, so that
End of door plate 300 generates the movement of tightening, the gas installed on 300 front side wall of door-plate while rubber sheet gasket seals sealing hole 340
Body sensor 410 detects the gas of 100 inner cavity of cabinet, when generation special gas or gas density are more than setting value
When, processor 400 is transmitted information to, processor 400 is issued to execute and be ordered to wireless sending module 460 and display module 440,
Display module 440 shows information on display 441, checks for staff, and wireless sending module 460 passes through wireless transmission
Signal will be executed and be sent to wireless receiving module 240, control fan 210 rotates after wireless receiving module 240 receives signal, fan
Outside air is transported to 100 inner cavity of cabinet by air hose 230 by 210, while the air conveyed by 220 Duis of filter plate carried out
Filter, so that the air of 100 inner cavity of cabinet carries out circulation replacement, the air of replacement is flowed out from check-valves 350, to reach to cabinet
The purpose of 100 inner air-cleanings prevents the case where causing cabinet 100 to explode due to gas, facilitates the reception of information,
The safety of raising personnel reduces loss.
Referring to Fig. 1 and Fig. 3, the linkage in order to facilitate door-plate 300 and cabinet 100 seals and the folding of door-plate 300,
The position of connection buckle 310 is corresponding with the position of shaft 121, and the position of sealing strip 320 is corresponding with the position of seal groove 110, stretches
One end of bar 140 is connect with link block 330；
Referring to Fig. 4, in order to facilitate the operation of staff, the front side wall bottom of door-plate 300 is equipped with handle
360；
Referring to Fig. 3, in order to facilitate the installation and replacement of gas sensor 410, the rear wall of gas sensor 410
Adhesive sheet 420 is installed, the rear wall of adhesive sheet 420 is Nian Jie with door-plate 300；
Referring to Fig. 2, in order to improve the air cleaning performance of filter plate 220, filter plate 220 includes frame, gauze
Plate and sponge plate, screen board and sponge plate are separately mounted at the top and bottom of the inner wall of frame；
Referring to Fig. 1, in order to improve the leakproofness of door-plate 300 Yu cabinet 100, locking device 130 include fixed plate,
Spring and rubber sheet gasket, fixed plate are connect with cabinet 100, and spring is mounted on the top of fixed plate, and rubber sheet gasket is mounted on spring
Top.
Although hereinbefore having been made with reference to some embodiments, present invention is described, of the invention not departing from
In the case where range, various improvement can be carried out to it and can be with equivalent without replacement component therein.Especially, as long as not
There are structural conflict, the various features in presently disclosed each embodiment can be combined with each other by any way
It uses, the description for not carrying out exhaustion to the case where these combinations in the present specification is only to be in omit length and economize on resources
The considerations of.Therefore, the invention is not limited to specific embodiments disclosed herein, and including falling within the scope of the appended claims
All technical solutions.
Claims (6)
1. a kind of digitlization well site explosion-proof electrical distribution box, it is characterised in that: including cabinet (100), seal groove (110), limiting slot
(120), shaft (121), locking device (130), telescopic rod (140), purification device (200), fan (210), filter plate
(220), air hose (230), wireless receiving module (240), door-plate (300), connection buckle (310), sealing strip (320), link block
(330), sealing hole (340), check-valves (350), processor (400), gas sensor (410), power module (430), display
Module (440), display (441), control button (450) and wireless sending module (460), the cabinet (100) include sealing
Slot (110) and limiting slot (120), the seal groove (110) are opened in the front side wall of cabinet (100), and the limiting slot (120) is opened in
At the top of the front side wall of cabinet (100), the shaft (121) is in the inner cavity for being transversely mounted on limiting slot (120), the locking device
(130) it is mounted on the intracavity bottom of cabinet (100), two telescopic rods (140) are mounted on the interior of cabinet (100) in symmetry shape
Chamber left and right sidewall, the purification device (200) run through the top of cabinet (100), and the purification device (200) includes fan
(210), filter plate (220), air hose (230) and wireless receiving module (240), two fans (210) are mounted on air hose
(230) one end, the other end of the air hose (230) are located at the bottom of purification device (200), and the filter plate (220) is in cross
To the inside for being mounted on purification device (200) and run through air hose (230), the door-plate (300) is mounted on the front side of cabinet (100)
Wall, the connection buckle (310) are mounted on the top of door-plate (300), and the sealing strip (320) is mounted on the front side of door-plate (300)
Wall, two link blocks (330) are mounted on the front side wall two sides of door-plate (300), and the sealing hole (340) is opened in door-plate
(300) front side wall bottom, the check-valves (350) are mounted on the front side wall bottom of door-plate (300), the processor (400)
Be mounted in the middle part of the front side wall of door-plate (300), the gas sensor (410), power module (430), display module (440) and
Wireless sending module (460) is electrically connected by connecting line and processor (400), the display (441) and control button
(450) it is installed in the rear wall of door-plate (300), the display (441) is electrically connected by connecting line with display module (440)
It connects, the control button (450) is connect by connecting line with processor (400), and the wireless sending module (460) is wirelessly connected
Wireless receiving module (240).
2. a kind of digitlization well site explosion-proof electrical distribution box according to claim 1, it is characterised in that: the connection buckle
(310) position is corresponding with the position of shaft (121), the position of the sealing strip (320) and the position pair of seal groove (110)
It answers, one end of the telescopic rod (140) is connect with link block (330).
3. a kind of digitlization well site explosion-proof electrical distribution box according to claim 1, it is characterised in that: the door-plate (300)
Front side wall bottom handle (360) are installed.
4. a kind of digitlization well site explosion-proof electrical distribution box according to claim 1, it is characterised in that: the gas sensor
(410) rear wall is equipped with adhesive sheet (420), and the rear wall of the adhesive sheet (420) is Nian Jie with door-plate (300).
5. a kind of digitlization well site explosion-proof electrical distribution box according to claim 1, it is characterised in that: the filter plate
It (220) include frame, screen board and sponge plate, the screen board and sponge plate are separately mounted at the top of the inner wall of frame and bottom
Portion.
6. a kind of digitlization well site explosion-proof electrical distribution box according to claim 1, it is characterised in that: the locking device
It (130) include fixed plate, spring and rubber sheet gasket, the fixed plate is connect with cabinet (100), and the spring is mounted on fixed plate
Top, the rubber sheet gasket is mounted on the top of spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910207377.7A CN109888639A (en) | 2019-03-13 | 2019-03-13 | A kind of digitlization well site explosion-proof electrical distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910207377.7A CN109888639A (en) | 2019-03-13 | 2019-03-13 | A kind of digitlization well site explosion-proof electrical distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109888639A true CN109888639A (en) | 2019-06-14 |
Family
ID=66932929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910207377.7A Pending CN109888639A (en) | 2019-03-13 | 2019-03-13 | A kind of digitlization well site explosion-proof electrical distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109888639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116093788A (en) * | 2022-12-30 | 2023-05-09 | 国家电投集团云南国际电力投资有限公司 | Feed-in protection cabinet for direct-current micro-grid |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136685A (en) * | 2010-12-29 | 2011-07-27 | 上海一开电气集团有限公司 | Safety distribution cabinet |
| CN107386887A (en) * | 2017-07-25 | 2017-11-24 | 合肥九晟机械有限公司 | A kind of electric extendable door of button fly front type glove box |
| CN207455840U (en) * | 2017-04-24 | 2018-06-05 | 盛世乐居（亚东）智能科技有限公司 | It is a kind of to automatically control domestic purification system for home environment air quality |
| CN208119087U (en) * | 2018-02-02 | 2018-11-20 | 海门市三电晟宇汽车零部件有限公司 | A kind of door wiring harness prevents Scuff guard |
-
2019
- 2019-03-13 CN CN201910207377.7A patent/CN109888639A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136685A (en) * | 2010-12-29 | 2011-07-27 | 上海一开电气集团有限公司 | Safety distribution cabinet |
| CN207455840U (en) * | 2017-04-24 | 2018-06-05 | 盛世乐居（亚东）智能科技有限公司 | It is a kind of to automatically control domestic purification system for home environment air quality |
| CN107386887A (en) * | 2017-07-25 | 2017-11-24 | 合肥九晟机械有限公司 | A kind of electric extendable door of button fly front type glove box |
| CN208119087U (en) * | 2018-02-02 | 2018-11-20 | 海门市三电晟宇汽车零部件有限公司 | A kind of door wiring harness prevents Scuff guard |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116093788A (en) * | 2022-12-30 | 2023-05-09 | 国家电投集团云南国际电力投资有限公司 | Feed-in protection cabinet for direct-current micro-grid |
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Application publication date: 20190614 |