CN201204503Y

CN201204503Y - Dry-type waterproof type flame-proof diving dual-function motor

Info

Publication number: CN201204503Y
Application number: CNU2008201169939U
Authority: CN
Inventors: 张万忠; 韩素茹; 侯陆军; 杨新臣; 李红旗; 朱福文; 陈会峰; 张天一; 李维熙
Original assignee: 张万忠
Priority date: 2008-05-24
Filing date: 2008-05-24
Publication date: 2009-03-04
Anticipated expiration: 2018-05-24

Abstract

The utility model discloses a dry-type flameproof and diving dual function motor, comprising a motor shaft, a shaft, a shaft sealing, a front bearing, a front end cover, a flameproof ring, a motor incoming line, a motor shell, a stator winding, a heating detecting device, an inner fan, a back end cover, a back bearing, an outer blower and a rotor; the motor shaft penetrates in the motor shell and is supported by the front bearing and the back bearing; the inner fan is fixed on the motor shaft in the motor shell; the shaft sealing utilizes machine clutch sealing device structure; the machine clutch sealing device is composed of a transition cover, a moving ring, a static ring, a sealing seat and so on; the moving ring is fixedly arranged on the motor shaft; the static ring is arranged in the sealing seat; the transition ring composed the annular hydro cylinder; the annual piston is arranged on the transition cover; the annular hydro cylinder is connected with the exterior hydraulic system; the utility model has the characteristics of realizing steadily and reliably works in a long period under the detonating gas and diving environment .

Description

The dry type water proof type flame proof difunctional motor of diving under water

Technical field:

The utility model relate to a kind of can be at the dry type water proof type flame proof of mine explosive gas atmosphere and the submersible environment long-term stable operation difunctional motor of diving under water.

Background technology:

Existing phase asynchronous flame-proof electric motor can be in explosive gas atmosphere operate as normal, its explosion-proof mechanism is: the damp in the motor cavity is in case blast, the high temperature and high pressure gas of its generation discharges to the outside through flame proof gap on the motor field frame, in the pressure leak process since explosion suppresion surface to the cooling effect of gas, its temperature is reduced to below the explosion gas burning-point, can not light motor extraneous explosion gas.But in water environment,, cause motor winding and connecting portion decreasing insulating, turn-to-turn short circuit or punch-through over the ground, make the motor can't operate as normal because the flame proof gap easily causes water inlet in the motor cavity.So the motor of this type can't drag submersible horizontal multi-stage centrifugal drain pump emergency drainage at mine generation floods and by under the situation of flooding.

Though existing submersible electric motor can be worked under submersible environment, but because the cooling heat dissipation of its stator, rotor must be realized by internal water circulation and the mobile method that heat is taken away of outside water, so can't be implemented in operation under the explosive gas atmosphere, and operational efficiency is lower.Horizontal flame-proof electric motor will be reorganized and outfit technological progress and safe anti-disaster ability generation significant impact to whole mining industry if can be implemented in reliably working steady in a long-term under two kinds of environment of damp and diving.

The utility model content:

The purpose of this utility model just provide a kind of both can be at the mine explosive gas atmosphere, again can be at the dry type water proof type flame proof of the submersible environment reliably working steady in a long-term difunctional motor of diving under water.

To achieve these goals, the utility model comprises: motor shaft, shaft seal, fore bearing, front end housing, the flame proof ring, the motor inlet wire, motor casing, stator module, add heat detecting device, internal fan, rear end cap, rear bearing, outer blower fan, rotor, motor shaft penetrates into motor casing inside and is supported by fore bearing and rear bearing, internal fan is fixed on the motor shaft of motor casing inside, the mechanical clutch sealing device structure is adopted in shaft seal, the mechanical clutch sealing device is by spacer shell, rotating ring, stationary ring, formations such as seal receptacle, rotating ring is fixedly mounted on the motor shaft, stationary ring is installed in the seal receptacle, spacer shell looping oil cylinder, annular piston is installed on the spacer shell, and annular cylinder is connected with the hydraulic system of outside.

Like this, in normaling burst property gaseous environment, motor is the flame-proof type motor.Flooding the well transducer in the mine safety system sends when flooding log signal, motor enters the waterproof operating state, by the withdrawal of HYDRAULIC CONTROL SYSTEM annular cylinder piston, realizes the closure of radial double mechanical seal stationary ring and rotating ring, motor interior is advanced not anhydrate, and guarantees that the motor winding insulation is good.Motor possessed and dragged the submersible horizontal multi-stage centrifugal drain pump ability of draining by force under water this moment, and can start at any time and shut down.When finish at the mine drainage complex ore, when entering the production phase, by stretching out of HYDRAULIC CONTROL SYSTEM annular cylinder piston, realize separating of radial double mechanical seal stationary ring and rotating ring, make the mechanical clutch sealing device state of deactivating, motor is converted to flameproof motor, enters normal explosion-proof operating condition.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the mechanical clutch schematic diagram of sealing device.

Embodiment:

As seen from Figure 1, Figure 2, utility model comprises: motor shaft 1, shaft seal 2, fore bearing 3, front end housing 4, flame proof ring 13, motor inlet wire 5, motor casing 6, stator module 7, add heat detecting device 8, internal fan 9, rear end cap 10, rear bearing 11, outer blower fan 12, rotor 14.Motor shaft 1 penetrates into motor casing 6 inside and is supported by fore bearing 3 and rear bearing 11, and internal fan 9 is fixed on the motor shaft 1 of motor casing inside, and the mechanical clutch sealing device structure is adopted in shaft seal, and sealing mechanism is the balanced type radial double mechanical seal.The mechanical clutch sealing device is made of spacer shell 17, rotating ring 16, stationary ring 19, seal receptacle 20 etc., the rotating ring of mechanical seal is a carbide alloy, and rotating ring 16 is fixedly mounted on the motor shaft 1, rotates with axle, install V-seal 15 additional in the joint portion, anti-sealing directly enters motor from here.Stationary ring 19 is installed in the seal receptacle 20, and the twice stationary ring is a flexible material, and radial arrangement is installed in the seal receptacle, and the afterbody mounting spring 21 of stationary ring, stationary ring structure are stairstepping, is provided with and installs sealing ring respectively between stationary ring 19 and the seal receptacle 20.During mechanical seal work, rotating ring contacts with stationary ring, and stationary ring is pressed onto on the rotating ring tightly.Twice stationary ring and rotating ring, seal receptacle constitute an annular seal space.In annular seal space, inject the circulation sealing fluid of certain pressure.The circulation sealing fluid flows between the twice stationary ring in order, and its loop direction is determined by dividing plate.Stationary ring is spring-loaded not only, and is subjected to action of hydraulic force.During mechanical seal work,, cut off the leakage path of mechanical seal front and back in the acting in conjunction of sealed fluid pressure and spring force.Spacer shell 17 looping oil cylinders, annular piston 18 is installed on the spacer shell, and the axial line of annular cylinder is concentric with motor reel, and annular cylinder is connected with the hydraulic system of outside.Internal fan and rotor coaxial keep motor interior heat balance during rotation.Outer blower fan independently is provided with, and guarantees the motor casing efficiently radiates heat.

During practical application, motor interior is installed wetness sensor, in case the motor water inlet, wetness sensor electric motor operated supervisory control system earthward sends signal, motor shuts down, and the heat radiation cooling of motor relies on inner air circulation and outside water convection current to finish.Points for attention in the implementation process: the open and close of mechanical clutch sealing device, must carry out in the following situation that motor stops operating; Mechanical clutch sealing device emptying sealing fluid at first before opening, after confirming that the mechanical sealing linkage ring stationary ring is in disengaged position, can actuating motor; After confirming that mechanical clutch sealing device rotating ring stationary ring enters closure state, must at first inject the circulation sealing fluid to annular seal space, then can actuating motor.

Claims

1, a kind of dry type water proof type flame proof difunctional motor of diving under water, comprise: motor shaft (1), shaft seal (2), fore bearing (3), front end housing (4), flame proof ring (13), motor inlet wire (5), motor casing (6), stator module (7), add heat detecting device (8), internal fan (9), rear end cap (10), rear bearing (11), outer blower fan (12), rotor (14), motor shaft (1) penetrates into motor casing (6) inside and is supported by fore bearing (3) and rear bearing (11), internal fan (9) is fixed on the motor shaft (1) of motor casing inside, it is characterized in that shaft seal employing mechanical clutch sealing device structure, the mechanical clutch sealing device is by spacer shell (17), rotating ring (16), stationary ring (19), seal receptacle formations such as (20), rotating ring (16) is fixedly mounted on the motor shaft (1), stationary ring (19) is installed in the seal receptacle (20), spacer shell (17) looping oil cylinder, annular piston (18) is installed on the spacer shell, and annular cylinder is connected with the hydraulic system of outside.