CN2252441Y - Ventilator explosion-proof electric machine positive-pressure coolant mechanism - Google Patents
Ventilator explosion-proof electric machine positive-pressure coolant mechanism Download PDFInfo
- Publication number
- CN2252441Y CN2252441Y CN96215878U CN96215878U CN2252441Y CN 2252441 Y CN2252441 Y CN 2252441Y CN 96215878 U CN96215878 U CN 96215878U CN 96215878 U CN96215878 U CN 96215878U CN 2252441 Y CN2252441 Y CN 2252441Y
- Authority
- CN
- China
- Prior art keywords
- explosion
- ventilator
- proof
- electric machine
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a ventilator explosion-proof electric machine positive-pressure coolant mechanism, comprising a coolant ventilator, a funnel transition segment with changeable diameter, a wing-shaped ventilator pipe, and is characterized in that the funnel transition section with changeable diameter is butt-jointed with the wing-shaped ventilator pipe fixed between the outer shell of a ventilator and the shell of an explosion-proof electric machine through a flange plate. The utility model can compulsorily cool the ventilated air in the electric machine with the method of positive ventilation to cool the inner part of the explosion-proof ventilator.
Description
The utility model relates to a kind of temperature control of axial fan fire-proof motor.It is a kind of cooling device of ventilation blower fire-proof motor of essential safe type.
The present explosion-proof fan of producing, the temperature rise control of its motor is mainly by natural cooling, promptly diffuse heat by means of convection current, radiation and the conduction of motor explosion-proof shell inner air and outer air, though cooling fan is installed in the motor explosion-proof shell that has, but hot-air can only circulate in shell, can not fundamentally solve the intensification problem of motor.Therefore, motor overheating often occurs, temperature surpasses the phenomenon of limit temperature regulation, even the motor accident occurs burning.
The purpose of this utility model is to provide a kind of axial fan fire-proof motor cooling device of safe, reliable, good cooling effect.This device utilizes small-sized auxiliary ventilator (title cooling blower) and ventilation duct, to implementing forced draft in the motor explosion-proof shell, forces hot air circulate in the shell, and discharges outside the shell, realizes the exchange of interior air of shell and surrounding air, reaches the purpose of abundant cooling.
The purpose of this utility model is achieved in that a kind of ventilation blower fire-proof motor forced draft cooling device, and it comprises cooling blower (4), reducing funnel transition segment (5), wing ventilation duct (7) and computer temperature control device.Be characterized in that described cooling blower places the outer fresh air of main ventilated enclosure, by special reducing funnel transition segment (5), docks with the wing ventilation duct that is fixed between ventilation blower shell (1) and the motor explosion-proof shell (2) with ring flange (6).This device adopts the forced draft working method, when cooling blower turns round, produces the normal pressure that is higher than atmospheric pressure in its exit, forces the interior hot-air of explosion-proof shell to flow out by adding a flank shape ventilation duct, reaches the purpose that reduces motor temperature.Simultaneously, because the interior air of motor explosion-proof shell (2) is in barotropic state, shell outer air (be in the runner between ventilation blower shell (1) and the motor explosion-proof shell (2) distinguished and admirable) is in negative pressure state, helps preventing that pernicious gas from entering in the explosion-proof shell, has improved the explosion-proof performance of blower fan.
Owing to adopted such scheme, not only solved the cooling problem of fire-proof motor, also further improved the explosion-proof performance of motor.Has the advantage that equipment is simple, cooling rate is fast, controllability is strong, fail safe is good.Help ventilation blower safe handling reliably and with long-term.
Below in conjunction with drawings and Examples the utility model is further elaborated:
The overall structure figure of the ventilation fire-proof motor forced draft cooling device that Fig. 1 relates to for the utility model;
Fig. 2 is about the profile of Fig. 1 along the A-A direction.
Among the figure: 1-ventilation blower shell; 2-motor explosion-proof shell; The 3-fire-proof motor; The 4-cooling blower; 5-reducing funnel transition segment; The 6-ring flange; The wing ventilation duct of 7-; The 8-connection box for motor; 9-ventilation blower support; The 10-electric machine support
When the motor temperature of main ventilation blower surpasses limit temperature regulation, computer temperature control device action, the power circuit of connection cooling blower (4), cooling blower running.Fresh distinguished and admirable from cooling off fans entrance, enter in the motor explosion-proof shell (2) through reducing funnel (5) and wing ventilation duct (7), after carrying out sufficient heat exchange with the shell inner circulating air, by the wing ventilation duct effusion of opposite side atmosphere (wind direction is shown in arrow among Fig. 2), finish cooling effect together to motor.After motor temperature recovered normally, the computer temperature control device transferred the state treated to by operate condition, and cut off the power circuit of cooling blower, and cooling blower shuts down.
Claims (2)
1, a kind of ventilation blower fire-proof motor forced draft cooling device, it comprises cooling blower (4), reducing funnel transition segment (5), wing ventilation duct (7) and computer temperature control device, it is characterized in that described reducing funnel transition segment (5) docks with the wing ventilation duct (7) that is fixed between ventilation blower shell (1) and the motor explosion-proof shell (2) by ring flange (6).
2, ventilation blower fire-proof motor forced draft cooling device according to claim 1 is characterized in that above-mentioned reducing funnel transition segment (5), and cooling blower (4) is set on its base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96215878U CN2252441Y (en) | 1996-07-30 | 1996-07-30 | Ventilator explosion-proof electric machine positive-pressure coolant mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96215878U CN2252441Y (en) | 1996-07-30 | 1996-07-30 | Ventilator explosion-proof electric machine positive-pressure coolant mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2252441Y true CN2252441Y (en) | 1997-04-16 |
Family
ID=33897553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96215878U Expired - Fee Related CN2252441Y (en) | 1996-07-30 | 1996-07-30 | Ventilator explosion-proof electric machine positive-pressure coolant mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2252441Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094859A (en) * | 2010-12-20 | 2011-06-15 | 无锡气动技术研究所有限公司 | Anti-explosion and ventilation control system of pneumatic control motor |
| EP3300220A1 (en) * | 2016-09-27 | 2018-03-28 | Siemens Aktiengesellschaft | Electric machine with an integrated over-pressure system |
| CN108423455A (en) * | 2017-09-20 | 2018-08-21 | 汝州市中鼎科技有限公司 | A kind of meeting papery data material sending machine |
-
1996
- 1996-07-30 CN CN96215878U patent/CN2252441Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094859A (en) * | 2010-12-20 | 2011-06-15 | 无锡气动技术研究所有限公司 | Anti-explosion and ventilation control system of pneumatic control motor |
| CN102094859B (en) * | 2010-12-20 | 2013-02-27 | 无锡气动技术研究所有限公司 | Anti-explosion and ventilation control system of pneumatic control motor |
| EP3300220A1 (en) * | 2016-09-27 | 2018-03-28 | Siemens Aktiengesellschaft | Electric machine with an integrated over-pressure system |
| CN108423455A (en) * | 2017-09-20 | 2018-08-21 | 汝州市中鼎科技有限公司 | A kind of meeting papery data material sending machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Cheng Shaoxian Document name: Notice of termination |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |