CN112254250A - Portable ventilation and oxygen supply device for closed space - Google Patents
Portable ventilation and oxygen supply device for closed space Download PDFInfo
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- CN112254250A CN112254250A CN202011187400.XA CN202011187400A CN112254250A CN 112254250 A CN112254250 A CN 112254250A CN 202011187400 A CN202011187400 A CN 202011187400A CN 112254250 A CN112254250 A CN 112254250A
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- air supply
- box body
- air
- supply box
- battery
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- 238000009423 ventilation Methods 0.000 title claims abstract description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000001301 oxygen Substances 0.000 title claims abstract description 32
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 32
- 238000005192 partition Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000005030 aluminium foil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000036284 oxygen consumption Effects 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0209—Ducting arrangements characterised by their connecting means, e.g. flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
- F24F2013/205—Mounting a ventilator fan therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/12—Details or features not otherwise provided for transportable
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a portable ventilation and oxygen supply device for a closed space, which adopts a structure of an air supply box body, wherein a battery and an air supply machine are arranged in the air supply box body to form a portable and movable air supply structure, the battery is connected with the air supply machine, a switch is arranged on the outer side of the air supply box body, the on-off of the air supply machine is controlled by the switch, an air inlet hole is formed in the side wall of one side of the air supply box body, an air outlet pipeline opening is formed in the side wall of the other side of the air supply box body, and the air outlet pipeline opening is connected with an air supply pipe.
Description
Technical Field
The invention belongs to the field of pit well exhaust construction, and particularly relates to a portable ventilation and oxygen supply device for a closed space.
Background
In the electric power engineering construction and operation, the deep foundation pit operation is the basic environment of foundation pouring operation, an operator needs to enter the deep foundation pit to operate, toxic gas, combustible gas, oxygen and the like are insufficient in a closed space, the gas can cause great safety risk to the operator in the space, ventilation treatment and gas detection are required before the operation, the qualified part to be detected can work, and how to effectively ventilate and send oxygen is particularly important; the ventilation and oxygen supply problem of closed spaces such as deep mountain or outdoor power line deep foundation pit operation and the like is caused by geographical positions or environments, the existing market lacks of shaped portable closed space ventilation and oxygen supply devices, the ventilation and oxygen supply devices aiming at the oxygen deficiency of power system deep foundation pit operation and petrochemical industry, food processing, urban pipelines and toxic and harmful gas focusing environments are few, the existing closed space ventilation and oxygen supply devices mostly use tunnel fixed air draft oxygen supply as the main part, and the requirements of movable portable ventilation and oxygen supply of newly developed or newly operated outdoor power line deep foundation pits, channels and other tank body closed environment operations cannot be met.
Disclosure of Invention
The invention aims to provide a portable ventilation and oxygen supply device for a closed space, which overcomes the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a portable airtight space ventilation oxygen delivery device, includes the air supply box, installs battery and forced draught blower in the air supply box, and the battery is connected in and the forced draught blower, and the air supply box outside is equipped with the switch, and the switch is used for controlling the start-up or closing of forced draught blower, and air supply box one side lateral wall is equipped with the fresh air inlet, and air supply box opposite side lateral wall is equipped with the air-out pipeline mouth, and air-out pipeline mouth outer end is used for connecting the blast pipe.
Furthermore, the battery is connected with an inverter, the inverter is connected with the air feeder, and the lower end of the air feeding box body is provided with a supporting leg.
Furthermore, the air supply box body is divided into a battery compartment, an inverter compartment and a fan compartment by a vertical partition plate and a transverse partition plate, and ventilation openings are formed in the side walls of the battery compartment, the inverter compartment and the fan compartment; a fan junction box is arranged on the inner wall of the inverter bin, and a wiring port connected to the inverter through a wire is arranged in the fan junction box; the inner wall of the battery compartment is provided with a battery junction box, and a wiring port connected with the inverter through a wire is arranged in the battery junction box.
Further, the air feeder is fixed in the air feeding box body through the fan mounting seat, and the air feeder is fixedly connected with the fan mounting seat through bolts.
Furthermore, a slide rail is arranged in the air supply box body, a sliding groove matched with the slide rail to slide is formed in the bottom of the fan mounting seat, a limiting block and a locking block are arranged on the slide rail, the fan mounting seat is located between the limiting block and the locking block, and the locking block is fixed with the bottom of the air supply box body through a locking bolt.
Furthermore, a box door is arranged on the air supply box body, the air outlet pipeline opening is arranged on the box door, the box door is located on the side wall of one side, opposite to the air inlet hole, of the air supply box body, the inner side of the air outlet pipeline opening is connected to the air outlet of the air supply machine through a connecting hose, and the two ends of the connecting hose are connected with the inner side of the air outlet pipeline opening and the air outlet of the air supply machine through locking buckles respectively.
Furthermore, the battery is fixed in the air supply box body through a jacking device.
Further, the jacking device comprises a top plate and a top rod with threads, one end of the top rod is fixedly connected with the top plate, a guide hole is formed in the box wall of the air supply box body, the other end of the top rod is arranged in the guide hole, a jacking nut is arranged on the top rod, and the battery is located between the top plate and the box wall of the air supply box body.
Furthermore, the upper end of the air supply box body is provided with a strap fixing ring for fixing straps, the outer side wall of the air supply box body is provided with a groove, a handle for lifting is arranged in the groove, the handle is rotatably connected with the air supply box body through a rotating pin shaft, and a torsion spring is arranged between the handle and the rotating pin shaft.
Furthermore, the outer end of the air outlet pipeline opening is provided with a clamp used for fixing the air supply pipe, a limiting groove is formed in the clamp, and a clamping ring capable of being arranged in the limiting groove is arranged at the connecting end of the air supply pipe.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention relates to a portable ventilation and oxygen supply device for a closed space, which adopts a structure of an air supply box body, wherein a battery and an air supply machine are arranged in the air supply box body to form a portable movable air supply structure, the battery is connected with the air supply machine, a switch is arranged on the outer side of the air supply box body, the on-off of the air supply machine is controlled by the switch, an air inlet hole is formed in the side wall of one side of the air supply box body, an air outlet pipeline opening is formed in the side wall of the other side of the air supply box body, and the air outlet pipeline opening is connected with an air supply pipe.
Furthermore, the battery is connected with an inverter, and the inverter is connected with the air feeder, so that the output voltage of the battery can be improved, and the air feeder is suitable for different motors.
Furthermore, the air supply box body is divided into a battery compartment, an inverter compartment and a fan compartment by a vertical partition plate and a transverse partition plate, and ventilation openings are formed in the side walls of the battery compartment, the inverter compartment and the fan compartment; a fan junction box is arranged on the inner wall of the inverter bin, and a wiring port connected to the inverter through a wire is arranged in the fan junction box; the inner wall of battery compartment is equipped with the battery terminal box, is equipped with in the battery terminal box to connect in the wiring mouth of dc-to-ac converter through the wire, and simple structure, the wiring of being convenient for has improved wiring safety, and the group battery of being convenient for is dismantled, is changed and charges, and at the internal formation space of air-supply box, the coupling hose of being convenient for is accomodate in the case.
Furthermore, the air feeder is fixed in the air feeding box body through the fan mounting seat, and the air feeder is fixedly connected with the fan mounting seat through bolts, so that the structure is simple, and the connection is stable.
Further, the air supply box body is internally provided with a slide rail, the bottom of the fan installation seat is provided with a slide groove matched with the slide rail to slide, the slide rail is provided with a limiting block and a locking block, the fan installation seat is positioned between the limiting block and the locking block, the locking block and the bottom of the air supply box body are fixed through a locking bolt, a motor convenient to put into the air supply box body reduces the box body volume, and a large space required by the laying process is not needed.
Furthermore, a box door is arranged on the air supply box body, an air outlet pipeline opening is arranged on the box door, and the box door is positioned on the side wall of the air supply box body opposite to the air inlet hole, so that the fan can be conveniently installed and connected.
Further, the jacking device comprises a top plate and a top rod with threads, the structure is simple, the battery is convenient to fixedly mount, and a mounting space can be reserved.
Furthermore, the upper end of the air supply box body is provided with a strap fixing ring for fixing straps, the outer side wall of the air supply box body is provided with a groove, and a lifting handle is arranged in the groove, so that the air supply box is convenient to carry.
Further, the outer end of air outlet pipe mouth is equipped with the clamp that is used for fixed blast pipe, is equipped with spacing recess on the clamp, and the link of blast pipe is equipped with the snap ring that can arrange spacing recess in, can prevent effectively that air supply in-process blast pipe hand pulling force from droing, has improved connection stability.
Drawings
Fig. 1 is a schematic structural diagram in an embodiment of the present invention.
FIG. 2 is a side view of an embodiment of the present invention.
Fig. 3 is a schematic structural view of an air outlet duct in the embodiment of the present invention.
Wherein, 1, the air supply box body; 2. a battery; 3. a blower; 4. an air inlet hole; 5. an air outlet duct outlet; 6. a switch; 7. an air supply pipe; 8. a connecting hose; 9. a fan mounting base; 10. an inverter; 11. a fan junction box; 12. a battery junction box; 13. a bolt; 14. a slide rail; 15. a limiting block; 16. a locking block; 17. locking the bolt; 18. supporting legs; 19. a top rod; 20. a top plate; 21. tightly pushing the nut; 22. a base plate; 23. a handle; 24. a strap fixing ring; 25. clamping a hoop; 26. a first locking portion; 27. a second locking portion; 28. a snap ring.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, a portable ventilation and oxygen supply device for enclosed space comprises an air supply box body 1, a battery 2 and an air supply blower 3 are installed in the air supply box body 1, the battery 2 is connected with the air supply blower 3, a switch 6 is arranged on the outer side of the air supply box body 1, the switch 6 is used for controlling the starting or closing of the air supply blower, an air inlet 4 is arranged on the side wall of one side of the air supply box body 1, an air outlet pipe opening 5 is arranged on the side wall of the other side of the air supply box body 1, and the outer end of the air outlet pipe.
As shown in fig. 1, the battery 2 is connected with an inverter 10, the inverter 10 is connected with the blower 3, and the low output voltage can be inverted into the high voltage required by the blower, so that the power of the blower can be improved; the lower end of the air supply box body 1 is provided with a supporting leg 18. The inside of the air supply box body 1 is divided into a battery compartment, an inverter compartment and a fan compartment by a vertical partition plate and a transverse partition plate, and ventilation openings are formed in the side walls of the battery compartment, the inverter compartment and the fan compartment. The inner wall of the inverter bin is provided with a fan junction box 11, a wiring port connected to the inverter through a wire is arranged in the fan junction box 11 and used for quick wiring of the blower 3, the structure is simple, wiring is convenient, winding trouble is avoided, and wiring, disassembly and maintenance of the fan are facilitated; the inner wall of the battery compartment is provided with a battery junction box 12, and a wiring port connected with the inverter through a wire is arranged in the battery junction box 12 and used for connecting the battery with the inverter, so that the structure is simplified, and the battery can be conveniently detached and replaced when the battery is used without electricity.
The blower 3 is fixed in the blower box body 1 through a blower mounting seat 9, and the blower 3 is fixedly connected with the blower mounting seat 9 through a bolt 13; a slide rail 14 is arranged in the air supply box body 1, a slide groove matched with the slide rail 14 to slide is arranged at the bottom of the fan mounting seat 9, a limiting block 15 and a locking block 16 are arranged on the slide rail 14, when the air supply box body is locked and mounted, the fan mounting seat 9 is positioned between the limiting block 15 and the locking block 16, and the locking block 16 and the bottom of the air supply box body 1 are fixed through a locking bolt 17; during the installation, be fixed in fan mount pad 9 with forced draught blower 3 on, then with fan mount pad 9 push up to fan mount pad 9 one end and stopper 15 contact on slide rail 14, then slide latch segment 16 along slide rail 14 to with the contact of fan mount pad 9 other end, then it is fixed with latch segment 16 locking through locking bolt 17 to realize forced draught blower 3's fixed mounting, then be connected air outlet and air outlet duct mouth 5 of forced draught blower 3.
A box door is arranged on the air supply box body 1, as shown in fig. 2, an air outlet pipe mouth 5 is arranged on the box door, the box door is positioned on the side wall of the air supply box body 1 opposite to an air inlet hole 4, the inner side of the air outlet pipe mouth 5 is connected with an air outlet of the air supply machine 3 through a connecting hose 8, two ends of the connecting hose 8 are respectively connected with the inner side of the air outlet pipe mouth 5 and the air outlet of the air supply machine 3 through locking buckles, the air supply machine 3 is communicated with the inner side of the air outlet pipe mouth 5 through the connecting hose 8, the installation space can be reduced in the air supply box body 1, the volume of the air supply box body 1 can be reduced, when in use, the air supply machine 3 is fixed in the air supply box body 1, then the inner side of the air outlet pipe mouth 5 is connected with the air outlet of the air supply machine 3 through the connecting hose 8, is beneficial to the miniaturization of the whole equipment.
As shown in fig. 1, the battery 2 is fixed in the air supply box 1 through a tightening device, the tightening device comprises a top plate 20 and a top rod 19 with threads, one end of the top rod 19 is fixedly connected with the top plate 20, a guide hole is formed in the box wall of the air supply box 1, the other end of the top rod 19 is arranged in the guide hole, a tightening nut 21 is arranged on the top rod 19, the battery 2 is located between the top plate 20 and the box wall of the air supply box 1, and the top plate 20 is pushed by rotating the tightening nut 21 to clamp the battery 2; as shown in fig. 1, in the present application, a guide hole is formed in a vertical partition plate in the air supply box body 1, and the other end of the ejector rod 19 is placed in the guide hole in the vertical partition plate. Be equipped with backing plate 22 between the tank wall of battery 2 and air supply box 1, backing plate 22 terminal surface is less than the 2 terminal surfaces of battery rather than the contact, can make battery 2 atress even through backing plate 22, during the installation, can have the space to be convenient for the battery to place and dismantle, the space size of whole equipment has been reduced, the space is too little, unable fixed battery, also be unfavorable for getting and putting the battery, through backing plate and top tight device, reserve installation operating space at the battery mounted position, can also provide heat dissipation channel for the battery simultaneously, avoid battery high temperature to take place dangerously.
The lateral wall of air supply box 1 is equipped with the handle 23 that is used for lifting and puts, and air supply box 1 upper end is equipped with the solid fixed ring 24 of braces that is used for fixed braces, and is concrete, as shown in fig. 1, air supply box 1's lateral wall is equipped with the recess, and handle 23 rotates through the axis of rotation round pin with air supply box 1 and is connected, is equipped with the torsional spring between handle 23 and the axis of rotation round pin, and handle 23 is located the recess for handle 23 self return prevents handle 23 collision in the work progress.
As shown in fig. 2 and 3, the outer end of the air outlet duct opening 5 is provided with a clamp 25 for fixing the air supply pipe 7, the air supply pipe 7 is fixed on the air outlet duct opening 5 through the clamp 25, the air supply pipe 7 is prevented from being directly connected with the air feeder, the stress of the air feeder is prevented from being applied when the air supply pipe 7 is pulled by stress, and the connection stability is improved.
Specifically, the hoop 25 adopts two half hoops, one end of each half hoop is rotationally fixed on the outer wall of the air supply box body 1, and the other ends of the two half hoops are connected in a locking manner; specifically, the other end of one of the half-hoops is provided with a first locking portion 26, the other end of the other half-hoop is provided with a second locking portion 27, and the first locking portion 26 and the second locking portion 27 are in locking connection. The first locking portion 26 may be a chuck and the second locking portion 27 may be a turn bolt and nut structure, which is locked by turning a bolt and nut to the chuck and then turning the nut.
As shown in fig. 2, be equipped with spacing recess on clamp 25, spacing recess sets up along clamp 25 circumference, and the link of blast pipe 7 is equipped with the snap ring 28 that can arrange spacing recess in, during the installation, locates the outer end of air outlet duct mouth 5 with the link cover of blast pipe 7, then merges two half clamps, makes snap ring 28 be located spacing recess, can prevent effectively that air supply in-process 7 hand power of blast pipe from droing, has improved connection stability.
The common digging type foundation opening has the aperture of 2 meters and the depth of 5 to 12 meters. Taking a deep foundation pit with the aperture of 2 meters and the depth of 12 meters as an example for data analysis, the space of the deep foundation pit is about: v2 pi r h 3.14 1 12 74.12 cubic meters.
According to the size of the used space, a 130W booster fan or an 80W booster fan is adopted. The rotating speed of the 130W booster type fan can reach 2800 revolutions per minute, and the wind speed can reach 1200 cubic meters per hour (20 cubic meters per minute):
l (wind volume) ═ V (wind speed) × T (ventilation time)
The replacement of the foundation pit air can be completed in the condition that the ventilation time T1 (air volume)/V (wind speed) is 74.12 (cubic meter)/20 (cubic meter/minute) 3.7 minutes for the air volume of 74.12 cubic meters.
The rotating speed of the 80W booster type fan can reach 2550 revolutions per minute, and the wind speed can reach 540 cubic meters per hour (9 cubic meters per minute):
l (wind volume) ═ V (wind speed) × T (ventilation time)
For example, the ventilation time T1 ═ L (air volume)/V (wind speed) ═ 74.12 (cubic meter)/9 (cubic meter per minute) ═ 8.2 minutes is required for 74.12 cubic meters of air volume, so that the replacement of foundation pit air can be completed.
The oxygen consumption of the human body is 200-. Assuming that the oxygen content of the delivered air is 21% (normal air), a man with a weight of 100KG works. Assuming two people are working simultaneously, the oxygen consumption is 18.8 (liters) in 1 minute.
The 130W fan can supply air for 20 cubic meters in 1 minute, wherein the oxygen content is as follows: v (20 cubic meters oxygen content) ═ 20 × 21% >, 4200 (liters) >18.8 (liters). (Note: 1 cubic meter 1000L)
The 80W fan can supply air for 9 cubic meters in 1 minute, wherein the oxygen content is as follows: v (9 cubic meters oxygen content) ═ 9 × 21% > 1890 (liter) >18.8 (liter). The air can be supplied intermittently or constantly, and the normal operation can be guaranteed as long as the normal operation requirement is met.
The 80W blower and the 130W blower are expected to operate for 4 hours to 8 hours. W (80W fan) 80(W) × 8(h) ═ 640W/h, W (130W fan) 130(W) × 4(h) ═ 520W/h.
The blast pipe 7 adopts retractable aluminium foil tuber pipe, can select the 125mm/100mm retractable aluminium foil tuber pipe of 6 meters, 12 meters and 18 meters according to the difference of deep basal pit hole footpath and degree of depth, and the fine stringing of aluminium foil glass can be high temperature resistant, scalable, fire-retardant acid and alkali-resistance, but S-shaped, 360 degrees bending are applicable to various environment.
The battery adopts a lithium battery, a 12V battery pack is selected, the capacity is 0.51 degrees (kW/h), and the weight is 3.5 kg. The continuous service time of the 130W and 80W fans can reach 3.9 hours and 6.3 hours, and the power supply problem of long-time outdoor operation can be solved; the purpose of boosting and capacity increasing is achieved through the series connection of the battery packs. The lithium battery has the unique advantages of 1. the lithium battery has long service life, and the cycle life is more than 2000 times. 2. The use is safe. 3. The charging is fast. 4. The capacity of the lithium battery is large. 5. The lithium battery is green and environment-friendly, nontoxic, pollution-free, wide in raw material source and low in price. Through 12V lithium cell group through 220V dc-to-ac converter output voltage, utilize booster type fan to provide wind-force and pass through the aluminium foil pipe and send wind to deep basal pit in, reach ventilation's purpose, recycle gas detector real-time detection deep basal pit in data such as gaseous oxygen content, toxic gas content, if abnormal detection appearance can send out the suggestion of police dispatch newspaper sound immediately.
This application simple structure is in the same place fan and battery integration, portable, high-power, last operating time is long, can effectively solve transmission line deep basal pit operation, cable tunnel operation and other airtight space outdoor operations's ventilation problem, improves airtight space operation personnel's safety.
Claims (10)
1. The utility model provides a portable airtight space ventilation oxygen delivery device, a serial communication port, including air supply box (1), install battery (2) and forced draught blower (3) in the air supply box (1), battery (2) are connected in with forced draught blower (3), air supply box (1) outside is equipped with switch (6), switch (6) are used for controlling the start-up or closing of forced draught blower, air supply box (1) one side lateral wall is equipped with fresh air inlet (4), air supply box (1) opposite side lateral wall is equipped with air-out pipeline mouth (5), air-out pipeline mouth (5) outer end is used for connecting blast pipe (7).
2. A portable closed space ventilation and oxygen supply device according to claim 1, wherein the battery (2) is connected with an inverter (10), the inverter (10) is connected with the blower (3), and the lower end of the blower box body (1) is provided with a supporting leg (18).
3. The portable ventilation and oxygen supply device for the closed space according to claim 1 or 2, wherein the inside of the air supply box body (1) is divided into a battery compartment, an inverter compartment and a fan compartment by a vertical partition plate and a transverse partition plate, and the side walls of the battery compartment, the inverter compartment and the fan compartment are provided with ventilation openings; a fan junction box (11) is arranged on the inner wall of the inverter bin, and a wiring port connected to the inverter through a wire is arranged in the fan junction box (11); the inner wall of the battery compartment is provided with a battery junction box (12), and a wiring port connected with the inverter through a lead is arranged in the battery junction box (12).
4. The portable closed space ventilation and oxygen supply device as claimed in claim 1, wherein the blower (3) is fixed in the blower box body (1) through a blower mounting seat (9), and the blower (3) is fixedly connected with the blower mounting seat (9) through a bolt (13).
5. The portable ventilation and oxygen supply device for the closed space according to claim 4, wherein a slide rail (14) is arranged in the air supply box body (1), a slide groove which is matched with the slide rail (14) to slide is arranged at the bottom of the fan mounting seat (9), a limit block (15) and a locking block (16) are arranged on the slide rail (14), the fan mounting seat (9) is arranged between the limit block (15) and the locking block (16), and the locking block (16) is fixed with the bottom of the air supply box body (1) through a locking bolt (17).
6. The portable closed space ventilation and oxygen supply device according to claim 1, wherein a box door is arranged on the air supply box body (1), the air outlet pipe port (5) is arranged on the box door, the box door is arranged on the side wall of the air supply box body (1) opposite to the air inlet hole (4), the inner side of the air outlet pipe port (5) is connected to the air outlet of the air feeder (3) through a connecting hose (8), and two ends of the connecting hose (8) are respectively connected with the inner side of the air outlet pipe port (5) and the air outlet of the air feeder (3) through locking buckles.
7. A portable closed space ventilation and oxygen supply device according to claim 1, wherein the battery (2) is fixed in the air supply box body (1) by a tightening device.
8. The portable ventilation and oxygen supply device for the closed space as claimed in claim 7, wherein the tightening device comprises a top plate (20) and a top rod (19) with screw thread, one end of the top rod (19) is fixedly connected with the top plate (20), the wall of the air supply box body (1) is provided with a guide hole, the other end of the top rod (19) is arranged in the guide hole, the top rod (19) is provided with a tightening nut (21), and the battery (2) is positioned between the top plate (20) and the wall of the air supply box body (1).
9. The portable ventilation and oxygen supply device for the enclosed space as claimed in claim 1, wherein the upper end of the air supply box body (1) is provided with a strap fixing ring (24) for fixing a strap, the outer side wall of the air supply box body (1) is provided with a groove, a lifting handle (23) is arranged in the groove, the handle (23) is rotatably connected with the air supply box body (1) through a rotating pin shaft, and a torsion spring is arranged between the handle (23) and the rotating pin shaft.
10. A portable closed space ventilation and oxygen supply device as claimed in claim 1, wherein the outer end of the outlet duct outlet (5) is provided with a clamp (25) for fixing the blast pipe (7), the clamp (25) is provided with a limit groove, and the connecting end of the blast pipe (7) is provided with a snap ring (28) capable of being placed in the limit groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011187400.XA CN112254250A (en) | 2020-10-29 | 2020-10-29 | Portable ventilation and oxygen supply device for closed space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011187400.XA CN112254250A (en) | 2020-10-29 | 2020-10-29 | Portable ventilation and oxygen supply device for closed space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112254250A true CN112254250A (en) | 2021-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011187400.XA Pending CN112254250A (en) | 2020-10-29 | 2020-10-29 | Portable ventilation and oxygen supply device for closed space |
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| Country | Link |
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| CN (1) | CN112254250A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071864A (en) * | 2021-04-21 | 2021-07-06 | 合肥泰禾卓海智能科技有限公司 | Totally-enclosed visible light device for dry separation of coal |
-
2020
- 2020-10-29 CN CN202011187400.XA patent/CN112254250A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071864A (en) * | 2021-04-21 | 2021-07-06 | 合肥泰禾卓海智能科技有限公司 | Totally-enclosed visible light device for dry separation of coal |
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