CN202017658U - Upward exhausting type anti-explosion fan - Google Patents
Upward exhausting type anti-explosion fan Download PDFInfo
- Publication number
- CN202017658U CN202017658U CN201120079439XU CN201120079439U CN202017658U CN 202017658 U CN202017658 U CN 202017658U CN 201120079439X U CN201120079439X U CN 201120079439XU CN 201120079439 U CN201120079439 U CN 201120079439U CN 202017658 U CN202017658 U CN 202017658U
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- motor
- wall
- air
- casing
- out type
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Abstract
The utility model discloses an upward exhausting type anti-explosion fan, which comprises a casing and a motor arranged in the casing. The motor is connected with an impeller via a spindle, the casing is provided with an inner wall and an outer wall, a passage from bottom to top is arranged between the inner wall and the outer wall, a flow guide mechanism is arranged at the lower end of the inner wall, and the flow guide mechanism and the impeller are arranged inside the outer wall. The upward exhausting type anti-explosion fan has the advantages that 1, gas in a danger area is eliminated by the aid of the passage between the inner wall and the outer wall, the motor is arranged on the inner side of the inner wall, so that gas cannot pass the motor, and safety is guaranteed;2, the spindle and the inner wall are sealed by stuffing boxes, and thereby safety is further guaranteed, and dangerous gas is prevented from overflowing from the spindle connecting the motor with the impeller;3, the motor is preferably an explosion isolation motor, so that when dangerous gas mixed into the environment after overflowing from other places, danger is reduced; and 4, the motor is arranged outside the casing of the fan so as to be easy to repair and maintain.
Description
Technical field
The utility model relates to a kind of explosion-proof fan, relates in particular to a kind of last air-out type explosion-proof fan that is used for boats and ships.
Background technique
Boats and ships have very high requirement for ventilation, and are especially all the more so for the cargo area of oil tanker and chemical tanker.
Blower fan is by motor-driven, and motor easily produces spark in rotary course, if blower fan is directly put into the environment that contains oil gas or flammable explosive gas, and easily produces blast.
For these reasons, be necessary to develop a kind of new explosion-proof fan, avoid the generation of above-mentioned accident.
The model utility content
Technical problem to be solved in the utility model provides a kind of air-out type explosion-proof fan of going up, effectively avoid cargo hold contain oil gas or flammable explosive gas directly contacts with blower fan.
The utility model adopts following technical proposal to solve the problems of the technologies described above:
A kind of air-out type explosion-proof fan of going up, comprise a casing and be arranged at the interior motor of casing, motor connects impeller by a main shaft, described casing has inner and outer wall, be passage from bottom to top between the inner and outer wall, and being provided with a deflector in the inwall lower end, deflector and impeller are positioned at outer wall.
In order further to guarantee safety, prevent that the main shaft of hazardous gas process connection motor and impeller from overflowing, described main shaft is installed in sealing in the stuffing box, connects motor by main shaft one end again, and the other end connection impeller has further guaranteed Security.
On the such scheme basis, described deflector comprises a guide plate, and this guide plate is fixed on the stuffing box place, and wherein, guide plate is connected with the inwall lower end, passes through packing box seal between guide plate and the main shaft.
Described impeller lower end connects an air guide sleeve.
Be connected by a coupling between described main shaft and the motor, also can main shaft be connected with motor by other Placements.
Described motor is fixed in the casing by a motor seat board.
In order to make air current flow more smooth and easy, the outer rim of described guide plate is outward-dipping from bottom to top arc tube.
In order to make air current flow more smooth and easy, the week edge of described air guide sleeve is an arc.
In order further to guarantee safety, described motor is an explosion-proof motor.
The utility model has the advantages that, 1. the gas of deathtrap is got rid of through the passage in the middle of the inner and outer wall, and motor is in the inwall inboard that promptly air-flow and without motor has so just guaranteed Security.2. pass through packing box seal between main shaft and the inwall, further guaranteed safety, prevent that the main shaft of hazardous gas process connection motor and impeller from overflowing.3. selection of Motor flame-proof type, if the hazardous gas that overflow in other places is mixed in the environment, motor itself is a flame-proof type, has also reduced danger; 4. motor is in the Blower Housing outside, is easy to the maintenance and the maintenance of motor.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model;
Fig. 2 is the plan view of Fig. 1.
Description of symbols among the figure
1---casing; 11---inwall;
12---outer wall; 2---air guide sleeve;
3---impeller; 4---main shaft;
5---stuffing box; 6---guide plate;
7---coupling; 8---motor seat board;
9---motor.
Embodiment
As depicted in figs. 1 and 2, a kind of air-out type explosion-proof fan of going up, comprise a casing 1 and the motor 9 that is arranged in the casing 1, motor 9 connects impeller 3 by a main shaft 4, described casing 1 has inwall 11 and outer wall 12, be passage from bottom to top between inwall 11 and the outer wall 12, and be provided with a deflector in inwall 11 lower ends, deflector and impeller 3 are positioned at outer wall 12.
For preventing that the main shaft 4 of flammable explosive gas through connecting motor 9 and impeller 3 from overflowing, and is installed in sealing in the stuffing box 5 with main shaft 4.
Described deflector comprises a guide plate 6,, this guide plate 6 is fixed on outside the stuffing box 5, and wherein, guide plate 6 is connected with inwall 11 lower ends, seals by stuffing box 5 between guide plate 6 and the main shaft 4.
Described impeller 3 lower ends connect an air guide sleeve 2.
Be connected by a coupling 7 between described main shaft 4 and the motor 9, also can main shaft 4 be connected with motor 9 by other on-link mode (OLM)s.
Described motor 9 is arranged in the casing 1 by a motor seat board 8.
In order to make air current flow more smooth and easy, the outer rim of described guide plate 6 is outward-dipping arc tube.
In order to make air current flow more smooth and easy, the week edge of described air guide sleeve 2 is an arc.
In order further to guarantee safety, described motor 9 is an explosion-proof motor.
Guide plate 6 and air guide sleeve 2 profiles all adopt the arc that meets air current flow, have reduced resistance, have increased the flow of blower fan, have also reduced energy consumption simultaneously.
Claims (9)
1. go up air-out type explosion-proof fan for one kind, comprise a casing and be arranged at the interior motor of casing, motor connects impeller by a main shaft, it is characterized in that: described casing has inner and outer wall, be passage from bottom to top between the inner and outer wall, and being provided with a deflector in the inwall lower end, deflector and impeller are positioned at outer wall.
2. the air-out type explosion-proof fan of going up according to claim 1 is characterized in that: described main shaft is installed in sealing in the stuffing box, connects motor by main shaft one end again, and the other end connects impeller.
3. the air-out type explosion-proof fan of going up according to claim 1 and 2, it is characterized in that: described deflector comprises a guide plate, and this guide plate is fixed on the stuffing box place, and guide plate is connected with the inwall lower end, passes through packing box seal between guide plate and the main shaft.
4. the air-out type explosion-proof fan of going up according to claim 3 is characterized in that: the outer rim of described guide plate is outward-dipping arc tube from bottom to top.
5. the air-out type explosion-proof fan of going up according to claim 1 and 2, it is characterized in that: described impeller lower end connects an air guide sleeve.
6. the air-out type explosion-proof fan of going up according to claim 5 is characterized in that: the week of described air guide sleeve is along being arc.
7. the air-out type explosion-proof fan of going up according to claim 1 and 2 is characterized in that: be connected by a coupling between described main shaft and the motor.
8. the air-out type explosion-proof fan of going up according to claim 1 and 2, it is characterized in that: described motor is arranged in the casing by a motor seat board.
9. the air-out type explosion-proof fan of going up according to claim 8, it is characterized in that: described motor is an explosion-proof motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120079439XU CN202017658U (en) | 2011-03-23 | 2011-03-23 | Upward exhausting type anti-explosion fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120079439XU CN202017658U (en) | 2011-03-23 | 2011-03-23 | Upward exhausting type anti-explosion fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202017658U true CN202017658U (en) | 2011-10-26 |
Family
ID=44811328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120079439XU Expired - Fee Related CN202017658U (en) | 2011-03-23 | 2011-03-23 | Upward exhausting type anti-explosion fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202017658U (en) |
-
2011
- 2011-03-23 CN CN201120079439XU patent/CN202017658U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111026 Termination date: 20120323 |