It can also be Deep Well Pumps Factory of ordinary cast iron, stainless steel and other materials according to various usage conditions; the conveying temperature can reach 250 ℃; and it has different heating structures, and the theoretical flow rate can reach 2000 cubic meters/hour..The advantages of twin-screw pumps: wide pressure and flow range; wide range of liquid types and viscosity; because the rotating parts in the pump have low inertia force,
high speeds can be used; good suction performance, with Self-priming capability; uniform and continuous flow, low vibration and low noise; compared with other rotary pumps, it is less sensitive to incoming gas and dirt; solid structure, easy to install and maintain. Features of external bearing twin-screw pump:
There is a side gap between the structure of this pump and the screw, and the independently lubricated external bearing allows it to transport various non-lubricating media. Features: The twin screw pump is a positive displacement pump, and the suction chamber in the pump should be tightly separated from the discharge chamber. This is also one of the very unique advantages of twin-screw pumps; twin-screw pumps can also run dry: because the moving parts do not touch each other during work, Therefore, the short-term dry running will not damage the pump components.
The advantages of the three-screw pump: wide pressure and flow range; wide range of transport liquids and viscosity; because the rotating parts in the pump have low inertia force, high speeds can be used; good suction performance, with Self-priming capability; uniform and continuous flow, low vibration and low noise; compared with other rotary pumps, it is less sensitive to incoming gas and dirt; solid structure, easy to install and maintain.
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high speeds can be used; good suction performance, with Self-priming capability; uniform and continuous flow, low vibration and low noise; compared with other rotary pumps, it is less sensitive to incoming gas and dirt; solid structure, easy to install and maintain. Features of external bearing twin-screw pump:
There is a side gap between the structure of this pump and the screw, and the independently lubricated external bearing allows it to transport various non-lubricating media. Features: The twin screw pump is a positive displacement pump, and the suction chamber in the pump should be tightly separated from the discharge chamber. This is also one of the very unique advantages of twin-screw pumps; twin-screw pumps can also run dry: because the moving parts do not touch each other during work, Therefore, the short-term dry running will not damage the pump components.
The advantages of the three-screw pump: wide pressure and flow range; wide range of transport liquids and viscosity; because the rotating parts in the pump have low inertia force, high speeds can be used; good suction performance, with Self-priming capability; uniform and continuous flow, low vibration and low noise; compared with other rotary pumps, it is less sensitive to incoming gas and dirt; solid structure, easy to install and maintain.
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The effective area of the filter screen should be 3 to 4 times the area of the inlet pipe to ensure the free flow of liquid. 5. 2. The installation steps of the multi-stage pump series: 1. For direct installation, the pump can China Surface Pumps Manufacturers be placed on the foundation with a height of 30-40 mm (prepared to be filled with grout). If you need to expand the diameter of the mouth, please use the eccentric reducer connector.
Check the integrity of the multi-stage pump and the motor before installation. 3. For the convenience and safety of maintenance and use, install a regulating valve on the inlet and outlet pipes of the pump and a pressure gauge near the outlet of the pump to ensure that the pump runs within the rated range and ensure the normal operation and use of the pump life. When installing the pipeline, the multi-stage vertical centrifugal pump and the outlet pipeline should have their own support, and the flange of the pump should not be subjected to it.
The pump is used in occasions with suction, the end of the water inlet pipe should be equipped with a bottom valve and the inlet and outlet pipes should not have too many bends. After the cement dries out for 3 to 5 days. A filter screen must be installed on the mouth pipeline to prevent impurities from entering the interior of the impeller. At the same time, there should be no water or air leakage. 7.
There are two ways to install the pump and the base, one is a rigid connection directly installed on the cement foundation, and the other is a flexible connection installed with a shock absorber. The pump installation location should be as close as possible to the water source. 9. 6. Then, make corrections, wear the anchor bolts, and fill with cement mortar. Large pipe weight. Re-calibrate, after the cement is completely dry, tighten the nut of the anchor bolt
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Check the integrity of the multi-stage pump and the motor before installation. 3. For the convenience and safety of maintenance and use, install a regulating valve on the inlet and outlet pipes of the pump and a pressure gauge near the outlet of the pump to ensure that the pump runs within the rated range and ensure the normal operation and use of the pump life. When installing the pipeline, the multi-stage vertical centrifugal pump and the outlet pipeline should have their own support, and the flange of the pump should not be subjected to it.
The pump is used in occasions with suction, the end of the water inlet pipe should be equipped with a bottom valve and the inlet and outlet pipes should not have too many bends. After the cement dries out for 3 to 5 days. A filter screen must be installed on the mouth pipeline to prevent impurities from entering the interior of the impeller. At the same time, there should be no water or air leakage. 7.
There are two ways to install the pump and the base, one is a rigid connection directly installed on the cement foundation, and the other is a flexible connection installed with a shock absorber. The pump installation location should be as close as possible to the water source. 9. 6. Then, make corrections, wear the anchor bolts, and fill with cement mortar. Large pipe weight. Re-calibrate, after the cement is completely dry, tighten the nut of the anchor bolt
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After the China wholesale deep well borehole pumps is turned on, the end face is swayed and rubbed once per revolution, and the moving ring runs out of concentricity, causing the end face to vaporize and overheat and wear. Injury and fail. When a sealing surface lags behind and cannot track the rotation, the instantaneous high temperature causes the sealing surface to be damaged. ②The shutdown of the high-temperature pump should be carried out in accordance with the provisions of the equipment technical documents.
The damage form must be analyzed comprehensively to find the root cause to ensure the long-term operation of the mechanical seal.2020-02-28 Centrifugal pump shutdown is mainly caused by the failure of the mechanical seal. ②
The coaxiality of the transmission parts of the pump is poor. For example, the high-speed pump speed is 20445r/min, the center diameter of the sealing surface is 7cm, and the linear speed of the pump is as high as 75 m/s after operation. ③The liquid medium has poor lubricity, and the operating pressure is overloaded, and the tracking and rotation of the two sealing surfaces are not synchronized..
The main reasons are: the flatness and roughness of the end surface does not meet the requirements, or the surface is scratched; there is particulate matter between the end surfaces, causing two The end face cannot be operated in the same way; the installation is not in place and the way is incorrect. ②The leakage of the sealing ring of the compensation ring is mainly due to the deformation of the gland and uneven pre-tightening force; incorrect installation; the quality of the sealing ring does not meet the standard; the selection of the sealing ring is incorrect. The corrosion of the sealing element by the liquid medium, stress concentration, soft and hard material coordination, erosion, auxiliary sealing O-ring, V-ring, concave ring and liquid medium incompatibility, deformation, etc.
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The damage form must be analyzed comprehensively to find the root cause to ensure the long-term operation of the mechanical seal.2020-02-28 Centrifugal pump shutdown is mainly caused by the failure of the mechanical seal. ②
The coaxiality of the transmission parts of the pump is poor. For example, the high-speed pump speed is 20445r/min, the center diameter of the sealing surface is 7cm, and the linear speed of the pump is as high as 75 m/s after operation. ③The liquid medium has poor lubricity, and the operating pressure is overloaded, and the tracking and rotation of the two sealing surfaces are not synchronized..
The main reasons are: the flatness and roughness of the end surface does not meet the requirements, or the surface is scratched; there is particulate matter between the end surfaces, causing two The end face cannot be operated in the same way; the installation is not in place and the way is incorrect. ②The leakage of the sealing ring of the compensation ring is mainly due to the deformation of the gland and uneven pre-tightening force; incorrect installation; the quality of the sealing ring does not meet the standard; the selection of the sealing ring is incorrect. The corrosion of the sealing element by the liquid medium, stress concentration, soft and hard material coordination, erosion, auxiliary sealing O-ring, V-ring, concave ring and liquid medium incompatibility, deformation, etc.
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The single screw pump can achieve the purpose of conveying medium containing trace solid particles. When the pump is working, the sealing line can effectively prevent gas from passing through, so as to achieve the purpose of conveying gas; when the medium contains solid particles, if the solid particles are squeezed in the sealing line, the rubber surface of the stator is compressed due to the elastic action of the rubber stator.
The pressure difference of each group of springs at the specified compression length shall meet the requirements, and the pressure error of each group of springs at the specified compression length shall meet the requirements. After long-term operation of the mechanical seal, the moving ring and the static ring are worn, the spring and shaft are corroded and worn, the sealing rubber ring is worn, aging, deformed, etc. The thickness of the adjustment pad is measured with a micrometer.
The working principle of the single screw pump: the rotor of the outer profile and the stator of the inner profile mesh to form a special contact line, the stator cavity is separated, and the contact line is called the sealing line. In oil production, a certain amount of natural gas, water and solid particles are often accompanied by oil well production. The sealing line will disappear at one end, and a new sealing line will be generated from the other end. 2.
The nature and China wholesale sewage pumps of the medium conveyed by the general single screw pump are relatively complicated, which may cause blockage in the pipeline. In the design of the mixed transportation system, fully analyze the characteristics of the mixed transportation medium and the single screw mixed transportation pump to ensure that the system is safe, reliable and scientific.
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The pressure difference of each group of springs at the specified compression length shall meet the requirements, and the pressure error of each group of springs at the specified compression length shall meet the requirements. After long-term operation of the mechanical seal, the moving ring and the static ring are worn, the spring and shaft are corroded and worn, the sealing rubber ring is worn, aging, deformed, etc. The thickness of the adjustment pad is measured with a micrometer.
The working principle of the single screw pump: the rotor of the outer profile and the stator of the inner profile mesh to form a special contact line, the stator cavity is separated, and the contact line is called the sealing line. In oil production, a certain amount of natural gas, water and solid particles are often accompanied by oil well production. The sealing line will disappear at one end, and a new sealing line will be generated from the other end. 2.
The nature and China wholesale sewage pumps of the medium conveyed by the general single screw pump are relatively complicated, which may cause blockage in the pipeline. In the design of the mixed transportation system, fully analyze the characteristics of the mixed transportation medium and the single screw mixed transportation pump to ensure that the system is safe, reliable and scientific.
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Test the insulation China Submersible Sewage Pumps Manufacturers of the motor every half a month, and the resistance value is not less than 0. (2) Assembly of the submersible pump: fix the shaft and the water inlet section on the mounting seat, use the disassembly cylinder to fix the impeller and the cone sleeve on the shaft, and then install the deflector shell and the impeller; Finish the upper casing, check valve, etc. The valve should be used to adjust the flow and head, and no overload operation is allowed. 6.
Assembly of deep well submersible pump: Check and clean the rust and sludge of all parts before assembly. 4.. (During the lifting and dismantling process, it is found that there is a jam and cannot be lifted forcibly. Adjust the stud to make the motor shaft extension meet the specified requirements. 3. Always observe the meter and check the electrical equipment
Canned motor pump product use: 1. 4. The anti-corrosion type of shielded pipeline pump is used to transport liquids that do not contain solid particles, are corrosive, and have a viscosity similar to water. Its vertical structure has a small installation area, stable operation, and installation without adjustment. It is suitable for energy, metallurgy, chemical industry, textile and papermaking, hotels, restaurants, bathrooms, boilers, hot water pressurized circulation and cities
5 meters. It is installed on the outlet pipe of the pump. Strictly check that the electrostatic grounding resistance of the pump casing and pipeline meets its specified requirements during installation. 4. In order to maintain a certain amount of storage fluid in the pump body to achieve better self-priming ability and prevent dry friction of the mechanical seal, the pump inlet must be higher than the centerline of the pump shaft. 7..
When conditions permit, the installation height of the suction inlet should be as low as possible below the artificial water storage level of the pool, and the suction pipe should be as short as possible Length, less elbows are installed, which helps shorten the self-priming time and improve the self-priming function. The pump bearing body is equipped with a cooling water joint of the cooling chamber device for the hose or plastic pipe with an inner hole of \; 12, and its thread size is M12 times; 1.
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Assembly of deep well submersible pump: Check and clean the rust and sludge of all parts before assembly. 4.. (During the lifting and dismantling process, it is found that there is a jam and cannot be lifted forcibly. Adjust the stud to make the motor shaft extension meet the specified requirements. 3. Always observe the meter and check the electrical equipment
Canned motor pump product use: 1. 4. The anti-corrosion type of shielded pipeline pump is used to transport liquids that do not contain solid particles, are corrosive, and have a viscosity similar to water. Its vertical structure has a small installation area, stable operation, and installation without adjustment. It is suitable for energy, metallurgy, chemical industry, textile and papermaking, hotels, restaurants, bathrooms, boilers, hot water pressurized circulation and cities
5 meters. It is installed on the outlet pipe of the pump. Strictly check that the electrostatic grounding resistance of the pump casing and pipeline meets its specified requirements during installation. 4. In order to maintain a certain amount of storage fluid in the pump body to achieve better self-priming ability and prevent dry friction of the mechanical seal, the pump inlet must be higher than the centerline of the pump shaft. 7..
When conditions permit, the installation height of the suction inlet should be as low as possible below the artificial water storage level of the pool, and the suction pipe should be as short as possible Length, less elbows are installed, which helps shorten the self-priming time and improve the self-priming function. The pump bearing body is equipped with a cooling water joint of the cooling chamber device for the hose or plastic pipe with an inner hole of \; 12, and its thread size is M12 times; 1.
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The pump can be used vertically or obliquely, with a small footprint, the volute needs to be buried in the working medium, easy to start, no water diversion, and the direction of rotation China JET pumps manufacturers should be clockwise from the tail of the motor. The volute, pump seat, motor seat, and impeller nut are cast iron with good corrosion resistance and corrosion resistance, and the processing technology is convenient.2020-03-30Structural characteristics of the sewage slurry pump: the vertical slurry pump is a single-stage single-suction vertical centrifugal pump.
The main components are volute, impeller, pump seat, and pump casing.. Sludge, etc. There are four skeleton oil seals and shaft sleeves in the pump seat to prevent shaft wear and extend shaft life
When the pump shaft rotates, the screw rotates around its own axis on the one hand, and on the other hand, it rolls along the outline of the bushing, so as to form the sealed chamber of the pump. The screw pump has the advantages of small size, light weight, low noise, simple structure and convenient maintenance; 8.
The installation position of the screw pump can be arbitrarily inclined; 6.2020-03-31 Sewage treatment is the process of collecting waste water and sewage in the sewage tank, lifting it by pump, and transporting it to the sewage treatment equipment to achieve separation, purification and recycling. Screw pump has uniform flow and stable pressure, which is more obvious at low speed; 3..
The pressure of the sludge pump determines the water content of the sludge pumped by the sludge pump, which has a direct impact on the sludge treatment of the subsequent filter press. Its working principle is driven by an electric idea. Energy industry: all kinds of fuel oil, coal oil slurry, coal water slurry, coal slime and nuclear waste. The screw pump is a screw type transport pump
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The main components are volute, impeller, pump seat, and pump casing.. Sludge, etc. There are four skeleton oil seals and shaft sleeves in the pump seat to prevent shaft wear and extend shaft life
When the pump shaft rotates, the screw rotates around its own axis on the one hand, and on the other hand, it rolls along the outline of the bushing, so as to form the sealed chamber of the pump. The screw pump has the advantages of small size, light weight, low noise, simple structure and convenient maintenance; 8.
The installation position of the screw pump can be arbitrarily inclined; 6.2020-03-31 Sewage treatment is the process of collecting waste water and sewage in the sewage tank, lifting it by pump, and transporting it to the sewage treatment equipment to achieve separation, purification and recycling. Screw pump has uniform flow and stable pressure, which is more obvious at low speed; 3..
The pressure of the sludge pump determines the water content of the sludge pumped by the sludge pump, which has a direct impact on the sludge treatment of the subsequent filter press. Its working principle is driven by an electric idea. Energy industry: all kinds of fuel oil, coal oil slurry, coal water slurry, coal slime and nuclear waste. The screw pump is a screw type transport pump
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They are also very suitable for China JET pumps manufacturers systems or certain applications that do not require suction lifts. On the other hand, positive displacement pumps can move water and generate pressure when necessary. Since centrifugal pumps have very few moving parts, they require very little maintenance.?020-10-12 When working in an industrial facility, one of the important equipment that may need to be installed in a building is an industrial water pump.
Industrial water pumps come in many different types and sizes, allowing you to choose the pump that meets your exact needs. Your industrial facility can use many different positive displacement pumps, which can be expanded to: peristaltic pumps, plunger pumps, plunger pumps, diaphragm pumps, metering pumps, and flexible impeller pumps. These liquids include resin, paint and oil.
The main problem with the use of centrifugal pumps in industrial environments is that these pumps need to recirculate the liquid to avoid the problem of system overheating due to low flow rates. Centrifugal pumps Although centrifugal pumps have great potential to meet the needs of industrial facilities, these pumps are also very simple and contain only a few moving parts. The only problem with positive displacement pumps is that they don’t have much space between the edge of the system and the rotary pump, resulting in slow rotation.
Positive displacement pumps do not use impellers, but are equipped with reciprocating or rotating parts designed to move water while also increasing the pressure around the discharge side of the pump. If you want to make a purchase decision to buy an industrial water pump, it is recommended that you contact a reliable and reputable supplier. When such damage occurs, the repair cost may be much higher than the repair cost..
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Industrial water pumps come in many different types and sizes, allowing you to choose the pump that meets your exact needs. Your industrial facility can use many different positive displacement pumps, which can be expanded to: peristaltic pumps, plunger pumps, plunger pumps, diaphragm pumps, metering pumps, and flexible impeller pumps. These liquids include resin, paint and oil.
The main problem with the use of centrifugal pumps in industrial environments is that these pumps need to recirculate the liquid to avoid the problem of system overheating due to low flow rates. Centrifugal pumps Although centrifugal pumps have great potential to meet the needs of industrial facilities, these pumps are also very simple and contain only a few moving parts. The only problem with positive displacement pumps is that they don’t have much space between the edge of the system and the rotary pump, resulting in slow rotation.
Positive displacement pumps do not use impellers, but are equipped with reciprocating or rotating parts designed to move water while also increasing the pressure around the discharge side of the pump. If you want to make a purchase decision to buy an industrial water pump, it is recommended that you contact a reliable and reputable supplier. When such damage occurs, the repair cost may be much higher than the repair cost..
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Natural rubber: has excellent flex resistance, good abrasion resistance, cold resistance and insulation, and high tear strength. It has poor aging resistance, poor weather resistance, oil resistance and solvent resistance. The rubber pump made of natural rubber compound has a suitable working temperature below 78℃. It is suitable for conveying a variety of abrasive slurries and weak acid and weak alkali solutions, but not suitable for conveying strong acid, oil, aliphatic and aromatic solutions.
Nitrile rubber: It is currently the most widely used oil-resistant rubber variety. It has a series of superior properties. Its wear resistance is 30-45% higher than natural rubber, and its high temperature resistance is better than natural rubber and styrene-butadiene rubber. But nitrile rubber has poor weather resistance. The rubber pump made of nitrile rubber compound has a maximum operating temperature of 95℃. The rubber pump of this type of rubber is resistant to various animal and vegetable oils, mineral oils and glycols.
Butyl rubber: rubber-lined pump parts made of butyl rubber compound, suitable for acid mud work. The maximum operating temperature is 100℃, which can withstand strong acids and alkalis (such as hydrochloric acid, sodium hydroxide), but high concentrations of oxidizing strong acids (such as concentrated sulfuric acid, concentrated nitric acid) will degrade butyl rubber.
Rubber O-rings are commonly used in pumps. Because of its very simple shape, it is easy to manufacture and low in cost. No matter how large the overall size of the O-ring, its cross-sectional size is very small (only a few millimeters), so it is light in weight, consumes less materials, is simple to use, and is easy to install and disassemble , The more prominent advantage is that the O-ring has a good sealing ability and a wide range of applications.
The working Self-priming Surface Pumps Manufacturers of static seal can reach more than 100MPa, and the dynamic seal can reach 30Mpa. The applicable temperature is -60～200℃, which can meet the requirements of various media. Therefore, it is more and more widely used in pump design.
The O-ring seal is installed between the groove and the sealed surface with a certain amount of compression, and the resulting rebound force gives the sealed smooth surface and the bottom of the groove an initial compressive stress. So as to play a sealing role.
When the pressure of the sealed liquid increases, the deformation of the O-ring also increases, so that the pressure transmitted to the sealing surface also increases, and the sealing effect increases. This is the reason why O-rings have good sealing capabilities.
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Nitrile rubber: It is currently the most widely used oil-resistant rubber variety. It has a series of superior properties. Its wear resistance is 30-45% higher than natural rubber, and its high temperature resistance is better than natural rubber and styrene-butadiene rubber. But nitrile rubber has poor weather resistance. The rubber pump made of nitrile rubber compound has a maximum operating temperature of 95℃. The rubber pump of this type of rubber is resistant to various animal and vegetable oils, mineral oils and glycols.
Butyl rubber: rubber-lined pump parts made of butyl rubber compound, suitable for acid mud work. The maximum operating temperature is 100℃, which can withstand strong acids and alkalis (such as hydrochloric acid, sodium hydroxide), but high concentrations of oxidizing strong acids (such as concentrated sulfuric acid, concentrated nitric acid) will degrade butyl rubber.
Rubber O-rings are commonly used in pumps. Because of its very simple shape, it is easy to manufacture and low in cost. No matter how large the overall size of the O-ring, its cross-sectional size is very small (only a few millimeters), so it is light in weight, consumes less materials, is simple to use, and is easy to install and disassemble , The more prominent advantage is that the O-ring has a good sealing ability and a wide range of applications.
The working Self-priming Surface Pumps Manufacturers of static seal can reach more than 100MPa, and the dynamic seal can reach 30Mpa. The applicable temperature is -60～200℃, which can meet the requirements of various media. Therefore, it is more and more widely used in pump design.
The O-ring seal is installed between the groove and the sealed surface with a certain amount of compression, and the resulting rebound force gives the sealed smooth surface and the bottom of the groove an initial compressive stress. So as to play a sealing role.
When the pressure of the sealed liquid increases, the deformation of the O-ring also increases, so that the pressure transmitted to the sealing surface also increases, and the sealing effect increases. This is the reason why O-rings have good sealing capabilities.
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