CN204421342U - A kind of mobile explosion-proof environment heating apparatus - Google Patents
A kind of mobile explosion-proof environment heating apparatus Download PDFInfo
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- CN204421342U CN204421342U CN201420834154.6U CN201420834154U CN204421342U CN 204421342 U CN204421342 U CN 204421342U CN 201420834154 U CN201420834154 U CN 201420834154U CN 204421342 U CN204421342 U CN 204421342U
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Abstract
The utility model discloses a kind of mobile explosion-proof environment heating apparatus, form and comprise snakelike ventilation duct (6), the air inlet of snakelike ventilation duct (6) is provided with ventilation blower (2), ventilation blower (2) is connected with fire-proof motor (1), the inwall of snakelike ventilation duct (6) is provided with the nichrome heating wire (3) of the stainless steel encapsulation be evenly arranged, the nichrome heating wire (3) of stainless steel encapsulation is connected with solid-state relay (5), and solid-state relay (5) is connected with PID temperature controller (4).The utility model can by heating safe and reliable for the cold air of hazardous environment, have that structure is simple, safe and reliable, temperature control accurately, the feature of energy-conserving and environment-protective.
Description
Technical field
the utility model relates to a kind of mobile explosion-proof environment heating apparatus, particularly a kind of in inflammable and explosive environment by even for cold air safe heating device.
Background technology
as everyone knows, once run into naked light or electric spark and will cause and fire in the environment of various oil, gas, dust, threat to life and property safety bring about great losses to factory.In order to the needs produced or test are heated to local microenvironment sometimes in dangerous situation, be breakneck by ambient temperature in inflammable and explosive environment.Heater car is normally placed on the region isolated with hazardous environment by solution in the past, be heat energy by electric energy conversion by heating wire in closed conduit, cold air suction closed conduit and naked heating wire are carried out heat exchange by ventilation blower by force, the hot-air of heating are sent into the local microenvironment needing to heat; Adopt naked heating wire heat exchange effect differential thermal equalization point too high; cause heating wire to be in superheat state for a long time easily to break down and cause potential safety hazard; simultaneously due to malleation must be kept in closed conduit to pour in down a chimney to avoid hazardous gas; therefore ventilation blower just necessary long continuous operation; just may cause once ventilation blower disorderly closedown and fire; because heater is isolated with by heating environment is relative; add the loss of pipeline input and energy; therefore the method cost is higher, temperature control is accurate not and energy consumption is comparatively large, is unfavorable for that factory safety is produced with energy-saving and cost-reducing.
Utility model content
the purpose of this utility model is, provides a kind of mobile explosion-proof environment heating apparatus.The utility model can by heating safe and reliable for the cold air of hazardous environment, have that structure is simple, safe and reliable, temperature control accurately, the feature of energy-conserving and environment-protective.
the technical solution of the utility model: a kind of mobile explosion-proof environment heating apparatus, it is characterized in that: comprise snakelike ventilation duct, the air inlet of snakelike ventilation duct is provided with ventilation blower, ventilation blower is connected with fire-proof motor, the inwall of snakelike ventilation duct is provided with the nichrome heating wire of the stainless steel encapsulation be evenly arranged, the nichrome heating wire of stainless steel encapsulation is connected with solid-state relay, and solid-state relay is connected with PID temperature controller.
in aforesaid mobile explosion-proof environment heating apparatus, the nichrome heating wire of described stainless steel encapsulation comprises stainless steel casing, is provided with nichrome heating wire, is provided with magnesium oxide sand in the space in stainless steel casing in stainless steel casing.
in aforesaid mobile explosion-proof environment heating apparatus, the nichrome heating wire of described stainless steel encapsulation is crisscross arranged on the inwall of snakelike ventilation duct.
in aforesaid mobile explosion-proof environment heating apparatus, the outer wall of described snakelike ventilation duct is provided with the temperature sensor connecting PID temperature controller.
in aforesaid mobile explosion-proof environment heating apparatus, the air inlet of described snakelike ventilation duct is provided with separation net, is provided with air regulating board above separation net.
compared with prior art, nichrome heating wire is encapsulated in stainless steel casing by the utility model, shell internal pore fills the magnesium oxide sand with good insulation thermal conductivity, avoid heating wire directly to contact with air, uniform thermal power is transmitted to stainless steel package casing and cold air carries out heat exchange by magnesium oxide sand; Electrical equipment all adopts explosion-proof type and is installed in positive-pressure explosion-proof regulator cubicle, and whole equipment is installed on moveable carriage and heater car can be positioned over by required heating environment nearby, saves pipeline thermal losses, safe and reliable and reduce use cost.
the utility model can by heating safe and reliable for the cold air of hazardous environment, have that structure is simple, safe and reliable, temperature control accurately, the feature of energy-conserving and environment-protective.
Accompanying drawing explanation
fig. 1 is structural representation of the present utility model;
fig. 2 is the structural representation of the nichrome heating wire of stainless steel encapsulation.
being labeled as in accompanying drawing: 1-fire-proof motor, 2-ventilation blower, the nichrome heating wire of 3-stainless steel encapsulation, 4-PID temperature controller, 5-solid-state relay, the snakelike ventilation duct of 6-, 7-stainless steel casing, 8-nichrome heating wire, 9-magnesium oxide sand, 10-temperature sensor, 11-separation net, 12-air regulating board.
Detailed description of the invention
below in conjunction with drawings and Examples, the utility model is further described, but not as the foundation limited the utility model.
embodiment.A kind of mobile explosion-proof environment heating apparatus, form as illustrated in fig. 1 and 2, comprise snakelike ventilation duct 6, the air inlet of snakelike ventilation duct 6 is provided with ventilation blower 2, ventilation blower 2 is connected with fire-proof motor 1, the inwall of snakelike ventilation duct 6 is provided with the nichrome heating wire 3 of the stainless steel encapsulation be evenly arranged, and the nichrome heating wire 3 of stainless steel encapsulation is connected with solid-state relay 5, and solid-state relay 5 is connected with PID temperature controller 4.
the nichrome heating wire 3 of described stainless steel encapsulation comprises stainless steel casing 7, and be provided with nichrome heating wire 8 in stainless steel casing 7, the space in stainless steel casing 7 is provided with magnesium oxide sand 9.Described nichrome heating wire 8 adopts silica gel sealing with connecting position of wires, heater element is isolated from the outside completely, stainless steel casing equivalence area of dissipation is greater than naked heating wire (nichrome heating wire 8), and therefore heat balance point extends the heater element life-span lower than direct naked electric-heating-wire-heating.
the nichrome heating wire 3 of described stainless steel encapsulation is crisscross arranged on the inwall of snakelike ventilation duct 6.
the outer wall of described snakelike ventilation duct 6 is provided with the temperature sensor 10 connecting PID temperature controller 4.By being arranged on the real-time induction tube wall temperature of temperature sensor on outer wall, once exceed setting value to get final product warning reminding, improve security.
the air inlet of described snakelike ventilation duct 6 is provided with separation net 11, is provided with air regulating board 12 above separation net 11.Can effectively prevent dust from entering by separation net, also can regulate intake by wind isolation board.
a kind of mobile explosion-proof environment heating method, ventilation blower is driven to suck cold air from the air inlet of snakelike ventilation duct by fire-proof motor, the nichrome heating wire being controlled stainless steel encapsulation by solid-state relay carries out heat exchange heating cold air, finally detects draught temperature by PID temperature controller able to programme.The nichrome heating wire of described stainless steel encapsulation is encapsulated in stainless steel casing by nichrome heating wire, and nichrome heating wire is evenly arranged along snakelike ventilation duct is axially staggered, the fill gaps magnesium oxide sand in stainless steel casing.By travelling car, snakelike ventilation duct is moved.
the utility model use principle is as follows: using nichrome heating wire as the heater being heat energy by electric energy conversion, utilizes the good insulation thermal conductivity of magnesium oxide sand that even heat is transmitted to stainless steel casing and cold air carries out heat exchange.Fire-proof motor is utilized to drive ventilation blower to be discharged by air outlet after air inlet sucks heating by cold air.Utilize programmable PID temperature controller to control solid-state relay and carry out temperature control.
detailed process is as follows, the structural representation of the utility model device as shown in Figure 1: ventilation blower 2 is connected with fire-proof motor 1 by shaft coupling, and fire-proof motor 1 drives ventilation blower 2 that cold air is transported to air outlet by the air inlet of coiled pipe 6; Programmable PID temperature controller 4 sends control instruction control solid-state relay 5 according to the temperature detecting required heating environment and is switched on or switched off, and the nichrome heating wire 3 that solid-state relay 5 is connected to stainless steel encapsulation heats.The heat that the nichrome heating wire 3 that stainless steel encapsulates sends and the cold air that ventilation blower 2 is carried carry out heat exchange, and the hot-air after heating is transported to required heating environment by coiled pipe 6.The element such as nichrome heating wire 3 grade that fire-proof motor 1 and stainless steel encapsulate avoids hazardous gas or dust and may produce pyrophoric element and contact, and makes whole equipment possess explosion prevention function.Whole equipment is arranged on and moveable carriage convenient, flexiblely can be applied to explosion-proof environment heats.
Claims (5)
1. a mobile explosion-proof environment heating apparatus, it is characterized in that: comprise snakelike ventilation duct (6), the air inlet of snakelike ventilation duct (6) is provided with ventilation blower (2), ventilation blower (2) is connected with fire-proof motor (1), the inwall of snakelike ventilation duct (6) is provided with the nichrome heating wire (3) of the stainless steel encapsulation be evenly arranged, the nichrome heating wire (3) of stainless steel encapsulation is connected with solid-state relay (5), and solid-state relay (5) is connected with PID temperature controller (4).
2. mobile explosion-proof environment heating apparatus according to claim 1, it is characterized in that: the nichrome heating wire (3) of described stainless steel encapsulation comprises stainless steel casing (7), be provided with nichrome heating wire (8) in stainless steel casing (7), the space in stainless steel casing (7) is provided with magnesium oxide sand (9).
3. mobile explosion-proof environment heating apparatus according to claim 1, is characterized in that: the nichrome heating wire (3) of described stainless steel encapsulation is crisscross arranged on the inwall of snakelike ventilation duct (6).
4. mobile explosion-proof environment heating apparatus according to claim 1, is characterized in that: the outer wall of described snakelike ventilation duct (6) is provided with the temperature sensor (10) connecting PID temperature controller (4).
5. the mobile explosion-proof environment heating apparatus according to any one of claim 1-4 claim, is characterized in that: the air inlet of described snakelike ventilation duct (6) is provided with separation net (11), and separation net (11) top is provided with air regulating board (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834154.6U CN204421342U (en) | 2014-12-25 | 2014-12-25 | A kind of mobile explosion-proof environment heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834154.6U CN204421342U (en) | 2014-12-25 | 2014-12-25 | A kind of mobile explosion-proof environment heating apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN204421342U true CN204421342U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420834154.6U Active CN204421342U (en) | 2014-12-25 | 2014-12-25 | A kind of mobile explosion-proof environment heating apparatus |
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| CN (1) | CN204421342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705193A (en) * | 2016-11-04 | 2017-05-24 | 天津玲华科技发展有限公司 | Novel fan heater used for heating and warming |
-
2014
- 2014-12-25 CN CN201420834154.6U patent/CN204421342U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705193A (en) * | 2016-11-04 | 2017-05-24 | 天津玲华科技发展有限公司 | Novel fan heater used for heating and warming |
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