Non-Seal High Temperature Canned Motor Pump

H Type High Temperature Canned Motor Pump

DESCRIPTION

High temperature type :The temperature of the conveying medium can reach up to 450 ℃. Usually, a cooling water jacket is added outside the Canned motor and a cooling sleeve is added in the external circulation pipe to cool the high-temperature circulating liquid to reduce the temperature of the motor and bearings. In situations where the power is not high, some manufacturers do not use coolant, but instead install heat dissipation fins and special windings on the outside of the motor to adapt to the working conditions, and the operating temperature generally cannot exceed 400 ℃. It adopts international standard design, the maximum operating flow is 1200m3/h, the maximum head is 600m, the temperature range is -120-350°C, and the maximum pressure of the system design is 20MPa.

ADVANTAGES

(1) Long service life, automatic hydraulic thrust balance system combined with silicon carbide bearings to obtain high service life;

(2) High efficiency, optimized motor design and high-efficiency hydraulic research, achieved excellent energy efficiency;

(3) High reliability, advanced processing technology, high-tech CNC equipment and perfect testing to ensure the stability of product performance;

(4) Monitor bearing wear to realize online monitoring and automatic control;

(5) Secondary sealing to ensure the safety to the environmental even in the accident situation.

FEATURES

Canned motor pump is composed by canned motor and pump, the inner surface of the stator and the outer surface of the rotor are covered by a thin-walled non-magnetic corrosion-resistant metal, so the stator winding, the rotor core will not be eroded by the conveying liquid, due to they are completely separated. In addition, the impeller is directly installed at the shaft extension of the rotor, the entire rotor is immersed in the conveying liquid, no rotating parts extend outside, is a structure without leakage, so it has the following advantages.

(1) Leak free, it is suitable for transporting toxic, explosive, flammable, purified, corrosive liquids;

(2) Complete seal, it is suitable for transporting liquids which is easy to oxidize;

(3) No mechanical seal, it is suitable for conveying high system pressure liquids, high melting point liquids, high temperature liquids, and low temperature liquids.

(4) Using medium as the lubrication, no need grease, no contamination to the transported liquid, no need of grease injection and drainage, either;

(5) Due to the motor and pump are coaxial integration, it is space saving, light in weight, compact design, easy to maintain and dismantle;

(6) The motor adopts water cooling or natural cooling, no fan, so the running vibration is less and the noise is lower.

Characteristics of canned pump:
1. The integrated structure of the motor and pump adopts static sealing, making the electric pump completely leak free.
2. The fully enclosed and leak free structure can transport toxic and harmful liquid substances.
3. The use of a shielded water-cooled motor and the elimination of a cooling fan make the pump operate with low noise and silence, suitable for situations with high environmental noise requirements.
4. The use of graphite sliding bearings lubricated with conveying media reduces operating noise and eliminates the need for manual refueling, reducing maintenance costs. In recent years, bearing materials have also increased, such as silicon carbide (SIC) and superhard, with a service life better than graphite bearings.
5. The vertical structure can be installed on the pipeline like a valve, making installation convenient and fast. During maintenance, only the motor and impeller need to be pulled out without the need to remove the pipeline.
6. It can be installed and operated in conjunction with shock absorbers or shock pads, making the noise of the electric pump lower during operation.

Common faults and maintenance of canned pumps

1. Canned motor pump cannot pump medium: There is a problem with the suction pipeline, such as blockage or air leakage. Whether the suction or output pipeline valves are closed and whether the management configuration is correct.
Solution: Users can solve the above problems by closing, cleaning, and configuring correctly. There is another situation where theCanned MotorPump cannot extract the medium, which is that the suction pressure head is too low. The corresponding problem can be solved by increasing the suction pressure head.
2. Canned motor pump flow rate too small or too large: There are many reasons for this type of malfunction, which may be blockage or scaling of pipelines, filters, or impellers.
Solution: Just remove the scale and blockages. If the pump is not fully filled with liquid or the inlet valve is not fully opened, simply perform the corresponding operation. If the flow rate is too high, then all you need to do is turn down the outlet valve. Also, if the head of the canned pump is too small, it is a system problem and you need to contact the manufacturer of the canned pump to help resolve it.
3. When the Canned MotorPump is working, the noise is relatively loud or unstable: then it is necessary to consider whether the parts inside the pump, such as bearings, are worn, and whether there are foreign objects inside the Canned motor pump
Solution: If such a situation occurs, it is necessary to contact the manufacturer or professional maintenance personnel for disassembly and repair.
4. The resistance value of the motor winding coil is normal, but the pump cannot rotate: the reason is dry grinding caused by running without liquid, and the rotor shaft sleeve and graphite bearing are stuck. Or due to other mechanical faults causing jamming.
Solution: Disassemble the Canned MotorPump, clean the accessories, and find the fault point. Repair or replace accessories.
5. The motor is fine, but the operating current is too high: the reason is that there is not enough liquid to be conveyed. There is a dry grinding situation. Or there may be mechanical jamming and deviation in the fastening of the motor end cover.
Solution: After decomposition. Clean and reassemble.
Precautions for using Canned motor pump:
1. During normal operation, the outlet valve should not be closed tightly and should be kept slightly open to prevent air blockage in the pump.
2. It is strictly prohibited to operate without liquid or for more than 1 minute to prevent damage to the motor and bearings.
3. It is strictly prohibited to run in reverse for more than 1 minute, as reverse operation may cause abnormal wear of the bearings.
4. It is strictly prohibited to operate under cavitation conditions, otherwise it may cause early wear of the bearings.

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MODEL DESCRIPTION

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More than 10,000+ customers in chemical, pharmaceutical, new energy, electronic aluminum foil and other industries have chosen RICITE products (magnetic drive pumps, chemical canned motor pumps, diaphragm pumps, mechanical seal centrifugal pumps, etc.), and Ricite (Zhejiang) Science & Technology Co., Ltd. has taken part in editing several industry technical standards and specifications, and won the honors of high-tech, energy-saving products and many other patents. Ricite (Zhejiang) Science & Technology Co., Ltd. is committed to manufacturing leak-free pumps, and adheres to the goal of developing magnetic drive pumps, chemical canned motor pumps, and other pumps, and pursues the technological innovation and providing reliable, high cost-efficient and energy-saving pumps and services to customers.

Website: www.ricitepump.com