Do you pay attention to the installation of stainless steel fan?

Stainless steel fan for industrial field, is a common equipment in this industry, is also very important, the key, so in order to better use, we first have to do is the correct installation, so that the equipment can play a normal role.

The following is the installation precautions of stainless steel centrifugal fan:

1. Check the outline size of the foundation and the center size of each reserved hole; The size deviation of the foundation exterior should be within the range of ±20mm, and the size deviation of the center of each reserved hole should be between ±10mm; Underline the foundation. Based on the base point of the main factory building or the vertical and horizontal center line of the boiler, the deviation of the vertical and horizontal main center line of the foundation should be ±10mm, the distance deviation of the center line should be ±3mm, and the elevation of the foundation should be between ±5mm.

2. Chisel the foundation, place the anchor bolts and arrange the cushion iron. The cushion iron group is generally 2 flat, 1 inclined and 3 pay the cushion iron, and the thick one is put below. It should be welded firmly and not loose after it is straightened. The iron cushion should be placed on the main loading platform of the equipment, the vertical ribs of the frame or both sides of the anchor bolts. It should be as close to the anchor bolt holes as possible without affecting the secondary grouting.

3. Rough positioning of the lower part of the housing: pay attention to the manufacturer's installation marks, usually "A", "B" each one, pay attention to distinguish the relationship with the import and export duct, impeller rotation, etc., before being in place.

4. Insert the bell mouth of the collector into the impeller and fix it with iron wire, then lift the whole rotating group into the predetermined position; When installing anchor bolts, the bending degree of anchor bolts should be less than or equal to L /100(L is the length of anchor bolts). The bottom of anchor bolts should not touch the bottom or wall of holes. The anchor bolt should be stressed evenly, and the bolt should be exposed to 2 ~ 3 buttons, and then loosen the iron wire, the lower part of the collector and the lower part of the housing with bolts fixed to preliminarily adjust the clearance between the impeller and the flare.

Stainless steel fan

5. Fan rotation group leveling and aligning: the verticality between the fan spindle and the bearing seat shall be aligning in the following ways: Stick the magnetic seat on the spindle, and point the dial indicator head to the outer ring of the bearing or the elastic position end face of the bearing seat (i.e. the upper end cover machining surface). At this time, rotate the spindle for more than one week, the dial reading is not greater than 0, 15mm, the reading value is the bearing seat and the spindle vertical situation.

6. Motor leveling and alignment: adjust the coaxiality of fan and motor spindle (that is, coupling leveling and alignment). With three dial indicator to find positive, axial two pieces, a radial piece, each disk axis 90 degrees, record the data, measure the reading about its up and down, adjust the coaxiality, so that the error is less than 0, 05mm, and between the two back wheel should be 10mm gap, find positive, review the center height of the shaft and other parts of the data, record.

7. After the fan is aligned, install the upper half of the housing cover, the collector and the housing in place. Asbestos rope should be placed between the two housing, and the connecting bolts should be tightened.

8. Install the air intake box, the entrance adjusting baffle door and the rest of the fan. The adjusting baffle shall rotate flexibly, otherwise, lubricating oil shall be added to rotate until the rotation is flexible. When installing, the blade should be fixed firmly, with sufficient expansion gap with the shell, the adjusting and operating device should be flexible and correct, the action is consistent, the opening indication mark is consistent with the actual, pay attention to the opening direction, cannot be reversed, the intake direction and the impeller rotation direction are the same.

9. The layout of cooling water and lubricating oil pipelines shall meet the requirements of the drawings, be correct and beautiful, and there shall be no debris in the pipelines.