CN204361816U - A kind of containment atmospheric monitoring system blower motor heat dissipating housing - Google Patents
A kind of containment atmospheric monitoring system blower motor heat dissipating housing Download PDFInfo
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- CN204361816U CN204361816U CN201520093092.2U CN201520093092U CN204361816U CN 204361816 U CN204361816 U CN 204361816U CN 201520093092 U CN201520093092 U CN 201520093092U CN 204361816 U CN204361816 U CN 204361816U
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Abstract
The utility model discloses a kind of containment atmospheric monitoring system blower motor heat dissipating housing, comprise spiral case, be fixedly connected on the fire-proof motor on the left of described spiral case, explosion-proof motor junction box is provided with above described fire-proof motor, it is characterized in that: described fire-proof motor outside is provided with motor radiating cover, described motor radiating cover and spiral case are that static seal connects, between described motor radiating cover and fire-proof motor, there is the space being not less than 0.8 times of motor center height, make, between fire-proof motor and motor radiating cover, there is heat radiation cavity.A kind of containment atmospheric monitoring system blower motor heat dissipating housing that the utility model discloses, not only can separate motor and external environment physics, can also realize the Homogeneouslly-radiating of motor, ensures that motor bearings temperature rise does not exceed standard.
Description
Technical field
The utility model relates to a kind of heat dissipating housing, particularly relates to a kind of heat dissipating housing be used on containment atmospheric monitoring system blower motor.
Background technology
" containment atmospheric monitoring system blower fan " is the key equipment for China autonomous three generations 1,000,000 millions advanced pressurized water reactor nuclear power generating sets " No. Hua Longyi (ACP1000) " reactor " containment atmospheric monitoring system ", safety and reliability during this blower fan directly affects normal reactor operation and under loss-of-coolant accident (LOCA) condition, therefore has strict requirement to security reliability.
Motor in conventional design is directly exposed in external environment, after reactor generation loss-of-coolant accident (LOCA), a large amount of boric acid spray can be carried out to reactor cooling process in containment top, now boric acid can directly overlay motor surface, cause motor failure as boric acid enters motor internal in a large number thus make blower fan out of service, this just makes blower fan cannot extract out because boric acid runs into a large amount of hydrogen produced after high-temperature gas in reactor, hydrogen is made to exceed permissible value if hydrogen now cannot be extracted out, the blast that containment will occur as produced in Fukushima, Japan nuclear power plant accident.
Related data shows: in the whole world, existing all structure electric machines all cannot meet the requirement of degree of protection under this operating mode, if simply motor is covered, heat radiation when motor runs cannot solve, bearing temperature can increase to over permissible value rapidly, finally causes bearing damage to carry out that blower fan is run out of steam and cannot complete predetermined task.
Utility model content
Utility model object: be to provide one can by motor and external environment completely isolated, effectively can solve the motor radiating cover structure of motor radiating simultaneously.
Technical scheme: a kind of containment atmospheric monitoring system blower motor heat dissipating housing described in the utility model, comprise spiral case, be fixedly connected on the fire-proof motor on the left of described spiral case, explosion-proof motor junction box is provided with above described fire-proof motor, it is characterized in that: described fire-proof motor outside is provided with motor radiating cover, described motor radiating cover and spiral case are that static seal connects, between described motor radiating cover and fire-proof motor, there is the space being not less than 0.8 times of motor center height, make, between fire-proof motor and motor radiating cover, there is heat radiation cavity.
Described motor radiating cover entirety is cylindrical structural, and afterbody end socket adopts face molded line to be 1:1.5 elliptic arc end socket.
Described motor radiating cover adopts Q345 low-alloy structural steel.
Carry out support by bracing frame below described motor radiating cover to fix.
Beneficial effect: a kind of containment atmospheric monitoring system blower motor heat dissipating housing that the utility model discloses, by increasing heat dissipating housing at outside motor, effectively motor and extraneous realization are completely cut off, when guaranteeing loss-of-coolant accident, boric acid and hydrogen can not enter motor internal, ensure the smooth realization of motor predetermined function, heat dissipating housing adopts integral type cylindrical structural simultaneously, guarantee that circumference dispels the heat, the hot-air of motor radiating sheet circumferencial direction is made evenly to be evaporated to heat dissipating housing surface, elliptic arc end socket is adopted at heat dissipating housing afterbody, guaranteeing that comparatively slight drag makes hot-air can not form local eddy currents and assembles, and can ensure that again heat dissipating housing bearing strength reaches requirement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is air-flow of the present utility model and heat radiation schematic diagram.
Embodiment
Below in conjunction with accompanying drawing of the present invention, clear, complete description is carried out to the technical scheme of the embodiment of the present invention.
As shown in Figure 1, a kind of containment atmospheric monitoring system blower motor heat dissipating housing that the utility model discloses, mainly cover on containment atmospheric monitoring system blower fan outside, so carry out motor radiating while separating with the external world with motor, the structure of Safety Section's atmospheric monitoring system blower fan comprises spiral case 1, be located at the air inlet 2 in spiral case 1 front, be arranged on the impeller 3 of spiral case 1 inside, be located at the air outlet 8 above spiral case 1, the fire-proof motor 4 be connected with spiral case 1 and explosion-proof motor junction box 5, it is outside that described motor radiating cover 6 is coated on described fire-proof motor 4, and be that static seal is fixedly connected with the side of spiral case 1, keep not revealing for 10 minutes under can meeting the condition of pressure-bearing 0.63MPa, carry out support by bracing frame 7 below it to fix, described explosion-proof motor junction box 5 is located at described motor radiating cover 6 top, surrounding and motor radiating cover 6 are tightly connected, described fire-proof motor is connected with explosion-proof motor junction box 5 through motor radiating cover 6 by connecting line.
Described motor radiating cover 6 adopts Q345 low-alloy structural steel, its entirety is cylindrical structural, guarantee what circumference dispelled the heat, what be conducive to motor radiating sheet circumferencial direction hot-air is evenly evaporated to heat dissipating housing surface, afterbody adopts face molded line to be 1:1.5 elliptic arc end socket, guarantee that can not form local eddy currents compared with the hot-air of slight drag assembles, the section factor larger than general board-type shrouding can be ensured again thus reach bearing strength simultaneously, it is outside that described motor radiating cover 6 is arranged on fire-proof motor 4, and there is between fire-proof motor 4 space being not less than 0.8 times of motor center height, make, between fire-proof motor and motor radiating cover, there is heat radiation cavity, the even heat of fire-proof motor surface radiating gold to be radiated in cavity and to be evaporated to motor radiating cover surface, and then be dispersed in outside air, effective realization is to the isolated of motor and heat radiation.
As shown in Figure 2, a kind of containment atmospheric monitoring system blower motor heat dissipating housing that the utility model discloses, its principle is: fire-proof motor runs, gas sucks from air inlet, enter in blade passage through vane rotary, discharge outside containment by air outlet after accelerating to do manual work again, now fire-proof motor constantly works and produces a large amount of heat energy, and be evaporated to motor radiating cover surface, thus be dispersed into the external world by motor radiating cover, between motor radiating cover and fire-proof motor, there is certain cavity, heat load is made to reach poised state, thus meet the requirement of the bearing temperature rise restriction of fire-proof motor, guarantee that fire-proof motor normally works under nominal operating conditions, simultaneously because motor radiating cover and spiral case adopt static seal to connect, once there is loss-of-coolant accident, effectively can prevent boric acid from entering motor internal and destroy motor.
Technology contents of the present utility model and technical characteristic have disclosed as above; but those of ordinary skill in the art still may do all replacement and the modification that do not deviate from the utility model spirit based on announcement of the present utility model; therefore; the utility model protection range should be not limited to the content that embodiment discloses; and various do not deviate from replacement of the present utility model and modification should be comprised, and contained by present patent application claim.
Claims (4)
1. a containment atmospheric monitoring system blower motor heat dissipating housing, comprise spiral case, be fixedly connected on the fire-proof motor on the left of described spiral case, explosion-proof motor junction box is provided with above described fire-proof motor, it is characterized in that: described fire-proof motor outside is provided with motor radiating cover, described motor radiating cover and spiral case are that static seal connects, between described motor radiating cover and fire-proof motor, there is the space being not less than 0.8 times of motor center height, make, between fire-proof motor and motor radiating cover, there is heat radiation cavity.
2. containment atmospheric monitoring system blower motor heat dissipating housing according to claim 1, is characterized in that: described motor radiating cover entirety is cylindrical structural, and afterbody end socket adopts face molded line to be 1:1.5 elliptic arc end socket.
3. containment atmospheric monitoring system blower motor heat dissipating housing according to claim 1, is characterized in that: described motor radiating cover adopts Q345 low-alloy structural steel.
4. containment atmospheric monitoring system blower motor heat dissipating housing according to claim 1, is characterized in that: carry out support by bracing frame below described motor radiating cover and fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093092.2U CN204361816U (en) | 2015-02-10 | 2015-02-10 | A kind of containment atmospheric monitoring system blower motor heat dissipating housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093092.2U CN204361816U (en) | 2015-02-10 | 2015-02-10 | A kind of containment atmospheric monitoring system blower motor heat dissipating housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204361816U true CN204361816U (en) | 2015-05-27 |
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| CN201520093092.2U Active CN204361816U (en) | 2015-02-10 | 2015-02-10 | A kind of containment atmospheric monitoring system blower motor heat dissipating housing |
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| CN (1) | CN204361816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661365A (en) * | 2019-11-14 | 2020-01-07 | 衡阳韵翔电机有限公司 | Fan structure for explosion-proof motor |
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2015
- 2015-02-10 CN CN201520093092.2U patent/CN204361816U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661365A (en) * | 2019-11-14 | 2020-01-07 | 衡阳韵翔电机有限公司 | Fan structure for explosion-proof motor |
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