Product Description
Working theory
The vacuum in dry screw pumps is created by way of 2 parallel-arranged screw rotors that rotate in reverse instructions. These rotors lure the fuel coming in through the inlet and produce it to the gas discharge or pressure facet. As the fuel is acquiring compressed, there is no make contact with amongst the rotors. This does absent with any want for the compression chamber to have any working fluids or lubrication.
The lubricant utilized to lubricate the gears and shaft seal is sealed in the gearbox by the shaft seal. The pump can be cooled both right by circulating cooling h2o or by a cooling device with fan and radiator.
The dry screw vacuum pump adopts a unique rotor pitch layout, in comparison with the ordinary rotor pitch layout, lessen the vitality consumption by about thirty%, the temperature rise of the exhaust conclude is reduced by about 100 ºC, the dependability and stability of the procedure of the merchandise is drastically enhanced, can be suited for any working conditions of vacuum.
The dry screw pumps can be broadly utilised in solvent recovery, vacuum drying, focus, crystallization, distillation and other procedures in the chemical and pharmaceutical industries, vacuum extrusion and molding in the plastic and rubber industries, vacuum degassing in the metallurgical sector vacuum degassing and drying in the photo voltaic energy, microelectronics, lithium battery and other industries.
Pump human body and conclude caps: substantial-strength cast iron.
Pump body and end caps: large energy solid iron.
Screw rotor: ductile solid iron.
Anti-corrosion coating: corrosion-resistant Hastelloy.
Synchronous gears: alloy metal.
Radial lip seal: imported PTFE mixture or
high-temperature resistant fluorine rubber
Seal bushings: stainless steel area coated with ceramic.
Flow chart
Major attributes
one. The screw rotor is created with variable pitch framework, the greatest vacuum can reach under 1Pa, which can meet all sorts of vacuum processing from atmosphere to large vacuum.
two. Oil cost-free – Adapt to numerous particular doing work situations for trustworthy use.
3. It can run reliably in the pressure variety from ambiance to numerous Pa.
4. No friction amongst relocating areas, easy construction, lower procedure and servicing cost.
five. Nitrogen seal and CZPT seal layout is optional, which has the benefit of very good dependability, low cost of use, straightforward routine maintenance.
6. The rotor is dynamically well balanced at substantial velocity and the motor is connected by flange, with substantial concentricity, lower vibration and low sounds.
seven. Hastelloy anti-corrosion coating is optional for rotor surface, condensable content is not simple to condense in the pump cavity, better corrosion resistance.
8. Compared with oil seal pump, liquid ring pump, there is no squander gas, no squander liquid, no squander oil emission, power conserving and environmental helpful.
It can be employed by yourself or with Roots vacuum pump, air-cooled Roots vacuum pump, molecular vacuum pump, and many others. to acquire an oil-totally free substantial vacuum method.
The advantage of dry screw vacuum pump when compared to liquid ring vacuum pump:
-Shorten the method cycle and improve generation efficiency
-Decrease water use
-Save energy
-Enhance item top quality
-Can recover solvent by reducing the drying time of products
-Lessen the cost of wastewater and squander gas treatment method
A Case in a pharmaceutical factory
Method introduction:The penicillin sodium salt solution is fed into the crystallization tank by means of vacuum. By steam heating, agitator stirring, and adding butanol, the drinking water and butanol in the penicillin remedy are pumped into the condenser and condensed into the liquid accumulating tank, which can be reused.
Process demands:
1. The quantity of crystallization tank is 7.5mthree, and about 4.5m3 penicillin solution is included in the method.
2. Before coming into the crystallization tank, the water articles of penicillin remedy is about twenty%, and after crystallization, the water content is essential to be about 1%.
three. Vacuum feeding for 2h, then introducing butanol for 30min, and then beginning to crystallize. The process requires reduced temperature and rapidly speed, and the decrease the temperature, the much better the quality of penicillin. The shorter the response time, the much better.
4. Vacuum degree requirements: the vacuum degree shall be retained previously mentioned -.097MPa. Higher vacuum degree can decrease the reaction temperature and shorten the response time.
The prior vacuum method was 2BE1252+air ejector, which is now reworked into a dry screw vacuum pump. The comparison desk of examination info is as follows:
| vacuum technique | 2BE1252+ejector | DVP 1600 screw pump |
| Feeding time (h) | 2 | one.5 |
| Liquid temperature at the starting of crystallization (ºC) | 31.five | 16.6 |
| Crystallization time (h) | six | four.five |
| Time from crystallization to liquid coming out (min) | 30 | 15 |
| Crystal top quality | common | very good |
| Electrical power use (KW) | 45 | 37 |
| Water use (m3) | 26.4 | .72 |
Financial advantage analysis:
| Value saving(USD) | Remark | |
| H2o consumption and treatment | one hundred thirty | Water cost: $.65/m3, water treatment: 30/m3 |
| Power | 15 | $.15/Kwh |
| Labor, production effectiveness | forty three | Lowered from 6 hour to 4.5 hour |
| Sum up | 188 |
You should speak to us for a thorough report of economic reward examination for your applications!
Configuration
Regular configuration:
Machine base, pump head, coupling, motor, driving monitor, air inlet connector, check out valve, vacuum gauge, guide filling valve exhaust port muffler.
Optional equipment:
Inlet filter, inlet condenser, solvent flushing device, nitrogen purging unit, nitrogen sealing device, exhaust port condenser, solenoid filling valve, cooling water movement switch, temperature sensor, pressure transmitter.
Programs
| Leak Detection | Metallurgy | Industrial furnace | Lithium Battery |
| Chemical, pharmaceutical | Wind tunnel test | Electrical power Market | Vacuum coating |
| Microelectronics market | Drying Process | Packaging and Printing | Solar Vitality |
| Exhaust gas recovery |
Solution Parameters
Technical info of Variable pitch Dry screw vacuum pump
| Spec. Model |
Nominal pumping speed(50Hz) | Greatest pressure | Nominal motor score (50Hz) | Nominal motor speed (50Hz) | Sound level Lp | Maximum cooling h2o essential |
Suction Relationship size | Discharge Relationship dimensions | Bodyweight (Without having Motor) |
| m³/h | Pa | kw | rpm | dB(A) | L/min | mm | mm | Kg | |
| DVP-a hundred and eighty | 181 | two | four | 2900 | 82 | eight | fifty | 40 | 280 |
| DVP-360 | 354 | two | seven.five | 2900 | 83 | ten | fifty | 40 | 400 |
| DVP-540 | 535 | two | eleven | 2900 | 83 | 10 | fifty | 40 | 500 |
| DVP-650 | 645 | 1 | fifteen | 2900 | eighty four | 20 | sixty five | 50 | 600 |
| DVP-800 | 780 | one | 22 | 2900 | 86 | thirty | 100 | 80 | 800 |
| DVP-1600 | 1450 | one | 37 | 2900 | 86 | 40 | 125 | a hundred | 1200 |
Specialized data of Continuous pitch Dry screw vacuum pump
| Spec. Design |
Nominal pumping pace(50Hz) | Final force | Nominal motor score (50Hz) | Nominal motor speed (50Hz) | Noise level Lp | Optimum cooling drinking water necessary |
Suction Connection dimension | Discharge Connection measurement | Excess weight (Without having Motor) |
| m³/h | Pa | kw | rpm | dB(A) | L/min | mm | mm | Kg | |
| DSP-one hundred forty | 143 | 5 | four | 2900 | 82 | 10 | fifty | 40 | 240 |
| DSP-280 | 278 | five | 7.5 | 2900 | eighty three | 20 | fifty | 40 | 350 |
| DSP-540 | 521 | 5 | fifteen | 2900 | eighty three | 30 | sixty five | 50 | 550 |
| DSP-650 | 617 | 5 | eighteen.5 | 2900 | eighty four | forty five | sixty five | 50 | 630 |
| DSP-720 | 763 | 5 | 22 | 2900 | 85 | fifty five | 80 | 80 | 780 |
| DSP-one thousand | 912 | five | thirty | 2900 | 86 | 70 | 100 | 80 | 880 |
Observe: The cooling water quantity of the dry screw vacuum pump supplied in the desk is the volume underneath 20ºC place temperature drinking water. When the dry screw vacuum pump makes use of cooling device, the cooling h2o will be improved, the variation of inlet and outlet drinking water temperature is usually controlled beneath 7ºC is acceptable.
Dimension
FAQ
Q: What details should I provide for an inquiry?
A: You can inquire based mostly on the model directly, but it is usually recommended that you speak to us so that we can support you to check out if the pump is the most appropriate for your application.
Q: Can you make a custom-made vacuum pump?
A: Indeed, we can do some unique patterns to meet up with buyer purposes. This sort of as customized sealing techniques, speical floor treatment method can be applied for roots vacuum pump and screw vacuum pump. You should contact us if you have specific demands.
Q: I have troubles with our vacuum pumps or vacuum techniques, can you offer you some support?
A: We have application and layout engineers with a lot more than 30 years of expertise in vacuum programs in diverse industries and assist a good deal of clients solve their troubles, these kinds of as leakage issues, strength-saving solutions, more environment-friendly vacuum methods, and so forth. You should get in touch with us and we will be really pleased if we can supply any assist to your vacuum system.
Q: Can you design and make tailored vacuum systems?
A: Sure, we are excellent for this.
Q: What is your MOQ?
A: 1 piece or 1 set.
Q: How about your shipping time?
A: 5-10 doing work days for the common vacuum pump if the quantity is beneath twenty parts, 20-thirty operating days for the conventional vacuum program with much less than 5 sets. For far more amount or special demands, make sure you contact us to check the lead time.
Q: What are your payment terms?
A: By T/T, 50% advance payment/deposit and fifty% paid out prior to cargo.
Q: How about the warranty?
A: We supply 1-12 months warranty (except for the wearing parts).
Q: How about the service?
A: We offer you remote video specialized assistance. We can send out the provider engineer to the website for some specific requirements.
| After-sales Service: | Online Video Instruction |
|---|---|
| Warranty: | 1 Year |
| Nominal Pumping Speed(50Hz): | 181 M3/H |
| Ultimate Pressure: | 2 PA |
| Nominal Motor Rating(50Hz): | 4 Kw |
| Nominal Motor Speed(50Hz): | 2900 Rpm |
###
| vacuum system | 2BE1252+ejector | DVP 1600 screw pump |
| Feeding time (h) | 2 | 1.5 |
| Liquid temperature at the beginning of crystallization (ºC) | 31.5 | 16.6 |
| Crystallization time (h) | 6 | 4.5 |
| Time from crystallization to liquid coming out (min) | 30 | 15 |
| Crystal quality | average | good |
| Power consumption (KW) | 45 | 37 |
| Water consumption (m3) | 26.4 | 0.72 |
###
| Cost saving(USD) | Remark | |
| Water consumption and treatment | 130 | Water cost: $0.65/m3, water treatment: 30/m3 |
| Power | 15 | $0.15/Kwh |
| Labor, production efficiency | 43 | Reduced from 6 hour to 4.5 hour |
| Sum up | 188 |
###
| Leak Detection | Metallurgy | Industrial furnace | Lithium Battery |
| Chemical, pharmaceutical | Wind tunnel test | Power Industry | Vacuum coating |
| Microelectronics industry | Drying Process | Packaging and Printing | Solar Energy |
| Exhaust gas recovery |
###
| Spec. Model |
Nominal pumping speed(50Hz) | Ultimate pressure | Nominal motor rating (50Hz) | Nominal motor speed (50Hz) | Noise level Lp | Maximum cooling water required |
Suction Connection size | Discharge Connection size | Weight (Without Motor) |
| m³/h | Pa | kw | rpm | dB(A) | L/min | mm | mm | Kg | |
| DVP-180 | 181 | 2 | 4 | 2900 | 82 | 8 | 50 | 40 | 280 |
| DVP-360 | 354 | 2 | 7.5 | 2900 | 83 | 10 | 50 | 40 | 400 |
| DVP-540 | 535 | 2 | 11 | 2900 | 83 | 10 | 50 | 40 | 500 |
| DVP-650 | 645 | 1 | 15 | 2900 | 84 | 20 | 65 | 50 | 600 |
| DVP-800 | 780 | 1 | 22 | 2900 | 86 | 30 | 100 | 80 | 800 |
| DVP-1600 | 1450 | 1 | 37 | 2900 | 86 | 40 | 125 | 100 | 1200 |
###
| Spec. Model |
Nominal pumping speed(50Hz) | Ultimate pressure | Nominal motor rating (50Hz) | Nominal motor speed (50Hz) | Noise level Lp | Maximum cooling water required |
Suction Connection size | Discharge Connection size | Weight (Without Motor) |
| m³/h | Pa | kw | rpm | dB(A) | L/min | mm | mm | Kg | |
| DSP-140 | 143 | 5 | 4 | 2900 | 82 | 10 | 50 | 40 | 240 |
| DSP-280 | 278 | 5 | 7.5 | 2900 | 83 | 20 | 50 | 40 | 350 |
| DSP-540 | 521 | 5 | 15 | 2900 | 83 | 30 | 65 | 50 | 550 |
| DSP-650 | 617 | 5 | 18.5 | 2900 | 84 | 45 | 65 | 50 | 630 |
| DSP-720 | 763 | 5 | 22 | 2900 | 85 | 55 | 80 | 80 | 780 |
| DSP-1000 | 912 | 5 | 30 | 2900 | 86 | 70 | 100 | 80 | 880 |
| After-sales Service: | Online Video Instruction |
|---|---|
| Warranty: | 1 Year |
| Nominal Pumping Speed(50Hz): | 181 M3/H |
| Ultimate Pressure: | 2 PA |
| Nominal Motor Rating(50Hz): | 4 Kw |
| Nominal Motor Speed(50Hz): | 2900 Rpm |
###
| vacuum system | 2BE1252+ejector | DVP 1600 screw pump |
| Feeding time (h) | 2 | 1.5 |
| Liquid temperature at the beginning of crystallization (ºC) | 31.5 | 16.6 |
| Crystallization time (h) | 6 | 4.5 |
| Time from crystallization to liquid coming out (min) | 30 | 15 |
| Crystal quality | average | good |
| Power consumption (KW) | 45 | 37 |
| Water consumption (m3) | 26.4 | 0.72 |
###
| Cost saving(USD) | Remark | |
| Water consumption and treatment | 130 | Water cost: $0.65/m3, water treatment: 30/m3 |
| Power | 15 | $0.15/Kwh |
| Labor, production efficiency | 43 | Reduced from 6 hour to 4.5 hour |
| Sum up | 188 |
###
| Leak Detection | Metallurgy | Industrial furnace | Lithium Battery |
| Chemical, pharmaceutical | Wind tunnel test | Power Industry | Vacuum coating |
| Microelectronics industry | Drying Process | Packaging and Printing | Solar Energy |
| Exhaust gas recovery |
###
| Spec. Model |
Nominal pumping speed(50Hz) | Ultimate pressure | Nominal motor rating (50Hz) | Nominal motor speed (50Hz) | Noise level Lp | Maximum cooling water required |
Suction Connection size | Discharge Connection size | Weight (Without Motor) |
| m³/h | Pa | kw | rpm | dB(A) | L/min | mm | mm | Kg | |
| DVP-180 | 181 | 2 | 4 | 2900 | 82 | 8 | 50 | 40 | 280 |
| DVP-360 | 354 | 2 | 7.5 | 2900 | 83 | 10 | 50 | 40 | 400 |
| DVP-540 | 535 | 2 | 11 | 2900 | 83 | 10 | 50 | 40 | 500 |
| DVP-650 | 645 | 1 | 15 | 2900 | 84 | 20 | 65 | 50 | 600 |
| DVP-800 | 780 | 1 | 22 | 2900 | 86 | 30 | 100 | 80 | 800 |
| DVP-1600 | 1450 | 1 | 37 | 2900 | 86 | 40 | 125 | 100 | 1200 |
###
| Spec. Model |
Nominal pumping speed(50Hz) | Ultimate pressure | Nominal motor rating (50Hz) | Nominal motor speed (50Hz) | Noise level Lp | Maximum cooling water required |
Suction Connection size | Discharge Connection size | Weight (Without Motor) |
| m³/h | Pa | kw | rpm | dB(A) | L/min | mm | mm | Kg | |
| DSP-140 | 143 | 5 | 4 | 2900 | 82 | 10 | 50 | 40 | 240 |
| DSP-280 | 278 | 5 | 7.5 | 2900 | 83 | 20 | 50 | 40 | 350 |
| DSP-540 | 521 | 5 | 15 | 2900 | 83 | 30 | 65 | 50 | 550 |
| DSP-650 | 617 | 5 | 18.5 | 2900 | 84 | 45 | 65 | 50 | 630 |
| DSP-720 | 763 | 5 | 22 | 2900 | 85 | 55 | 80 | 80 | 780 |
| DSP-1000 | 912 | 5 | 30 | 2900 | 86 | 70 | 100 | 80 | 880 |
How to Use Sprocket for Conversion Optimization
The sprocket is usually attached to the shaft with one or more set screws. These set screws are usually ANSI standard sizes. However, these standards are not always suitable for all applications. Therefore, it is important to find a supplier who understands the correct keyway size for a specific application.
Typical sprocket
Typical sprocket hardnesses range from 35 to 40 HRC, depending on the application. However, some applications require lower hardness levels. The hardness level is determined by the material used to manufacture the sprocket. Further tempering can further reduce the hardness level. For example, conveyor sprockets with long pitch line thicknesses may not require hardening.
Steel is the most commonly used material for standard sprockets. However, many types of materials can also be used. The material used to make the sprocket depends largely on the type of equipment and tools used to make the sprocket. Steel is the most common building material because of its versatility and hardness and its use in a variety of applications. Bronze is another common material used for sprockets, usually in non-magnetic environments.
Another common material used for sprockets is reinforced plastic. While sprockets may look similar to gears, the main difference is their teeth and their ability to interlock with the chain. This allows simple rotational movement of large equipment and machinery.
The number of teeth on the sprocket is measured according to the number specified by the standard. An example is the ISO-DIN standard. A typical sprocket has an odd number of teeth to prevent the teeth from wearing out and causing the chain to slip.
A typical sprocket has rollers on the bottom and teeth on the top. When the chain meshes with the sprockets, the rollers get caught on the teeth. The rollers then pull the strap back, removing the extra force. However, if the bottom half of the chain is slack, the rollers will sit on the teeth and the chain will jump forward one tooth.
Function
Sprocket is an important feature for optimizing the user experience of your website. It works by analyzing user behavior on your website and delivering personalized interactions at the right time. This feature can also help you increase the conversion rate of your website. In this article, we’ll explore how to use Sprocket for conversion optimization.
The easiest way to explain the function of a chainring is to imagine a bicycle. The large sprocket is mounted on the pedal axle of the bike, and it drives the chain, which in turn drives the small sprocket on the rear wheel. The same principle is used for motorcycles and some other motor vehicles.
element
Sprocket assemblies are wheel-shaped assemblies that hold gears and other components in place. They allow precise rotation of large gears. They can be made of metal or reinforced plastic. Different designs are available to suit different applications. Here are some examples. Sprockets are used for heavy duty rollers.
The components 12 and 14 slide together in the axial direction relative to the drive shaft 18 . The protrusions 22 on one part fit into complementary shaped grooves on the other part. Usually, the two parts are the same, but they can be different. For example, jigsaw-shaped protrusions may fit into grooves in opposing portions.
Sprocket components are usually made of metal or reinforced plastic. They resemble gears due to their wheel-shaped design and teeth. However, sprockets interact with different types of chains. Most sprocket chain systems operate similarly to bicycle chain assemblies. To ensure proper performance, choose the correct one for your specific application.
Whether you’re buying sprockets for an electric car, bike, or construction project, make sure you choose the right sprocket. Sprockets are versatile. A single sprocket may have one or two teeth, while a triple sprocket may have two or more.
Put on
Proper maintenance of your bicycle’s chain and sprockets is critical to the performance and safety of your bicycle. These components wear out over time and should be replaced in the correct order. A well-maintained bike can go from 20,000 to 30,000 miles on one set of components. Mileage depends on the quality of the chain and sprockets and the type of riding style. For your safety and the performance of your bike, it is recommended to replace these components every few thousand miles.
Identifying a worn sprocket is easy; you can easily notice when a sprocket’s teeth are cut off. A badly worn sprocket will be unusable and your chain will end up stuck between the teeth. If the chain is damaged by worn sprockets, you should replace the chain.
When a chain or sprocket needs to be replaced, it is important to ensure that the sprocket is properly lubricated. Oiling will make the chain and sprocket more efficient and reduce the risk of damage. A good rule of thumb is to use anti-rust oil to protect your bike from corrosion.
In order to maintain the sprocket, you should follow the manufacturer’s maintenance instructions. You must replace them in the correct order. The first step is to remove the old sprocket and discard it. Old sprockets cannot be mixed with new sprockets.
It is also important to replace the front and rear sprockets when returning the chain. You should also lubricate the chain to prevent rust. Before lubricating, you can clean the chain with a non-petroleum-based cleaner. Don’t use oil as it doesn’t protect the chain from water and is more viscous.
editor by czh2022-11-25