Comparison Of Advantages And Disadvantages Of No - Engine Room Elevator And

- Sep 06, 2017-

No machine room elevator is relative to the organic room elevator in terms of, that is, the use of modern production technology will be the engine room equipment to maintain the original performance under the premise of miniaturization, eliminating the need for the engine room, the original room control cabinet, Traction machine, speed governor, etc. to move to the top of the elevator shaft or side of the hoistway, thus eliminating the traditional room. In order to meet the customer's height and roof of the special requirements.

First, no machine room elevator and organic room elevator compared to the advantages

1, the advantages of the machine room is to save space, you can only do in the host below a maintenance platform.

2, because there is no need for the engine room, the building structure and the cost of greater benefits, which makes the architect in the design has greater flexibility and convenience, to the designer with greater freedom, and because canceled Room, the owner, the machine room elevator than the organic room elevator construction costs lower.

3, due to the overall design of some antique building building and the requirements of the roof, must be effective in the height of the elevator to solve the problem, so the machine room elevator is very satisfied with the needs of such buildings, and in the scenic spots, Floor height, thus destroying its local ethnic exotic, if the use of non-machine room elevator, because do not have to set up the elevator main room, can effectively reduce the height of the building.

4, inconvenient to set the elevator room, such as hotels, hotel annex buildings, podium and so on.

Second, no machine room elevator and organic room compared to the shortcomings of the elevator

1, noise, vibration and use of limitations

There are two types of host placement in the machine room: one for the host on the top of the car, through the shaft guide wheel connection, no matter which way, the impact of noise is very large, because the use of steel connection , And the noise must be digested in the hoistway, plus the sound of the brake, the fan's voice will be enlarged. So the noise, the machine room is significantly larger than the organic room.

In addition, the rigid connection of the host, the resonance phenomenon inevitably spread to the car and rail, the impact of the car and the rail is relatively large, so the comfort of the machine room is significantly weaker than the organic room.

As a result of these two effects, no machine room elevator does not apply to high speed trapezoidal above 1.75 / s. In addition, due to the support of the shaft wall is limited, so the load of the engine room without the general load should not be greater than 1150 kg, too much load on the shaft wall carrying requirements are too high, and we usually reinforced concrete thickness of 200mm, brick structure Usually 240mm, not suitable for carrying too large, so in 1.75m / s, 1150 kilograms below the trapezoidal machine room can replace the organic room, and large load high-speed elevator, organic room elevator is better than no machine room elevator.

2, the temperature impact

The heat of the elevator is relatively large, while its variety of electronic components to withstand high temperature capacity are relatively poor, and now use the organic room elevator and non-machine room elevator are used permanent magnet synchronous gearless traction machine, the permanent magnet synchronous motor The temperature should not be too high, or easily lead to "loss of magnetic" phenomenon.

So now the national standard in the room temperature, exhaust air volume are clearly defined. The main room and other main heating parts are in the shaft, because there is no corresponding cooling and exhaust facilities, resulting in the temperature of the engine room without the impact of the host and the control cabinet is relatively large, especially the full transparent ladder is not suited to install No machine room elevator, elevator gathered in the hot air can not be discharged. So choose this type of elevator must pay attention.

3, fault repair and personnel rescue

No room maintenance and management of the elevator is not as convenient as the engine room elevator. No machine room elevator repair and debugging more trouble, because no matter how good the elevator will inevitably fail, and no machine room elevator as the host is mounted on the beam, the host in the hoistway, if the host (motor) problems are very troublesome, so , The national standard expressly stipulates that the elevator room safety window can be added without the addition, and the machine room must be added in order to rescue and repair, maintenance of the host's convenience and security, so the maintenance of the machine room elevator occupies an absolute advantage, if there is space or Recommended with organic room.

In addition, the staff rescue, no machine room elevator is also very troublesome, in the event of a power outage, you must install emergency power supply, the general emergency power supply elevator need to invest more money.

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