Product details
Product Introduction:
The BQS series mine flameproof submerged sand discharge pump is composed of a water-filled submersible three-phase asynchronous motor and a multi-stage centrifugal pump. Execute the GB 3836.1, GB 3836.2, MT/T671 standard. Compared with the traditional centrifugal pump, it has the advantages of convenient installation and maintenance, not afraid of water, safe and reliable operation, stable performance, low vibration noise, high efficiency, compact structure and low operating cost. According to the actual application environment, the flow guide can be added to the outside of the unit to increase its operational reliability. Because the inner cavity of the motor is filled with clear water, it will not generate electric sparks and explode when working in the water. The pump and motor of the electric pump are split structure, which can be transported separately and can be installed vertically, horizontally and obliquely.
Features
The BQS series of Mine Flameproof Submersible Sand Pumps take the integrated structure of the motor and the water pump. Two mechanical seals are set between the motor and the pump casing to prevent water from entering the inner cavity of the motor. From the lower end of the motor, they use "O" seals, ring and rubber compression sleeve sealing devices to prevent water from entering the junction box. A cover is set outside the motor housing, and the water discharged from the pump all flows out through the interlayer between the motor housing and the cover, which realizes the characteristics of water cooling of the motor, thus ensuring that the water pump can run for dehydration in a short time, and can automatically drain when there is water. Compared with the clean water pump, the sand pump impeller is correspondingly increased with a sand prevention ring, which can discharge sand containing solid particles slag sewage and does not affect efficiency.
Structure
BQS series has two types of suction design: single suction, and double suction. Both two types of pumps have two group impellers in back-to-back position. For the double suction structure, suction is on the top of the pump, and another one is on the bottom of the pump. In principle, the thrust force is zero as the two suctions are opposite, and the numbers of the impeller are the same for two sides. For the single-suction type, it has single-suction on the bottom of the pump. If the impeller is even, the numbers of the two groups are the same, and the suction direction is the same. So, the thrust force is zero. If the impeller numbers are singular, the impeller of lower suction is one stage more and the extra impeller has balance holes and a trust balance ring. It can balance the thrust force mostly, so the trust force is nearly zero also. The designs can lower the thrust force of the motor bearing and can help the motor running stable and prolong the service life.
Model
Note: Head can be specified by single-stage head × stages
The motor pump is Explore-proof type, the mark is "ExdbI"
Details
1. Power supply: Three Phase, rated voltage 660V, 1140V, 6000V, 10000V, permit voltage wave: ±5%
2. Permit environment temperature: 0℃~40℃;
3. Max. liquid Temperature: 40℃
4. The PH value should be 6~8.
5. The solid content should be less than 2%;
6. The Max. submersed depth should be less than 70m.
7. The vertical installation is recommended. Buthorizontal installation design is available also in special application. The operation model continues running.
8. The pump can operate in the area where content firedamp or other explosive gas in the air. It can operate in the area where content gas.
The above condition is the general application condition. The pump should be special design and produce for special conditions.
Technical Character
1. Applied standard
2. Main parameters of BQS pump
The main performance parameters of 6000V and 10000V series pump see table 1, the motor performance parameters see Table 2.
The main performance parameters of 660V and 1140V series pump see table 1, the motor performance parameters see the table 2.
Supply Scope
1. Motor pump: BQS series pump, YBQ series submersible motor, cooling jacket, Tramcar.
2. Pipe: Short pipe, delivery pipe, elbow, seal washer, fittings, Non-return valve for the delivery pipe.
3. Cable: Power cable and cable connection material.
4. Control panel: Control panel, Automatic control system.
Installation type
BQS series submersible motor pump has two type of installation: vertical and horizontal. It can be combine with tramcar as complete set of drainage system for mining drainage purpose. The sketch as following
http://www.lutseepumps.com/
