Screw pump concept and working principle

1. The concept of single screw pump Single screw pump is a new type of internal rotary reciprocating positive displacement pump. The main working parts are eccentric screw (rotor) and fixed bushings (stator). Compared with other pumps, the advantages of single-screw pump Compared with the centrifugal pump, single-screw pump does not require valves installed, and flow is a stable linear flow. Compared with the plunger pump, single screw pump has better self-suction capacity. Compared with the diaphragm pump, single screw pump can convey a variety of mixed impurities, containing gas and solid particles or fibers of the medium, but also convey a variety of corrosive substances. Compared with the gear pump, single screw pump can deliver high viscosity substances. Unlike plunger pumps, diaphragm pumps and gear pumps, single-screw pumps can be used for filling and metering medications. 2. The basic working principle of screw pump rod pump is the use of screw rotation to suction and discharge liquid. Figure 1 shows a cross-sectional view of a three-screw pump. In the picture, the middle screw is the active screw which is driven by the prime mover. The screw on both sides is the driven screw, which rotates reversely with the active screw. The main, driven screw thread are double-headed thread. Due to the mutual engagement of the screws and the close cooperation of the screw with the inner wall of the liner, one or more sealed spaces are separated between the suction and discharge of the pump. As the screw is rotated and engaged, these sealed spaces are constantly formed at the suction side of the pump, sealing the liquid in the suction chamber therein and continuously displacing in the axial direction of the screw from the suction chamber to the discharge end to be closed in the respective spaces Continued discharge of liquid, like a nut in the screw rotation is constantly moving forward, as the case, which is the basic working principle of the screw pump. The sealing surface between the screw and the housing is a curved surface. There are unsealed areas such as ab or de on this surface and a number of triangular notches abc, def with the groove portion of the screw. The notches of these triangles form a passage for the liquid, allowing the drive screw groove A to communicate with the grooves B, C in the driven screw. The grooves B, C, along with their spiral around the back, respectively, and the back of the grooves D, E communicated. Since there are also triangular notches a'b'c 'similar to the front face on the sealing surfaces where the grooves D, E engage with the groove F (which belongs to the other thread), D, F, E will also communicate. In this way, the groove ABCDEA also form a "∞" -shaped sealing space (such as the use of single-head thread, the groove will be along the axial disk Rao screw, the suction port through, can not form a seal). Not hard to imagine, in such a screw, will form a number of independent "∞" -shaped sealed space, each sealed space occupies the axial length exactly equal to the lead of the tired rod t. Therefore, in order to make the suction and discharge of the screw, the length of the screw thread should be longer than one lead.

Led Aquarium Light For Plants

Philizon enjoys a high reputation in grow led lamp and Aquarium Led Light fields throughout Europe and America, Philizon also insists on taking high technology to design the newest&best led Grow Light and Aquarium Light constantly as the market request. Our R&D team with more than 10 people has rich experience in appearance design, electronic structure,heat dissipation simulation analysis, optical lens design, lightcontrol system etc. Most of our hydroponics full spectrum led grow lighting and Led Aquarium Algae are private modules,we have 10 more design patent and utility model patent till now.

Our Led Aquarium Algae is popular in led market, cause its elegant outlook and its high quality and competitive price.

Item Display

Key Features

1.The lifespan is over 50000 hours,low maintenance costs.

2.Energy conservation,saving over 80% energy than the traditional HPS.

3.High light efficiency,90% of the light will be absorbed by the aquatic plants,while just 8%-10% to the HPS.

4.Build-in cooling system,could solve the heat dissipation excellently.

5.Built-in power supply, CE approved, No setup required, just simpler and safer plugs directly into AC85V-264V, no reflector & ballast needed.

Convenient in using lights at the same time.

Package Include

1 X LED Aquarium Light

1 X Free Hanging Kit

1X Free Power Cord

Quality Control systems and after-sales

All the lamps have passed strict quality examination and are packed carefully before shipping. In order that our customers get high quality lamps,we attach importance to every details.

Application

1. coral reef lighting,fish tank lighting,coral reef tank lighting

2. aquarium lighting,aquarium art,aquarium shop,aquarim centre

3. fish bowl lighting,fish lighting,freshwater lighting,saltwater lighting

Our Company

Philizon Advantages

Professional: we are professional LED Grow Lights and LED aquarium light manufactuer here in China,you will get Professional and High quality LED Grow Lights and Led Aquarium Algae from us and get good guarantee.

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Long term warranty: Don`t worry about the quality and we guarantee you 3years warranty for all the LED Plant Grow Light and coral reef led aquarium light.

Best buying experience: you will get the tiptop serive you have ever had,just have a try and you`ll see.

Trade Terms

Payment: T/T, L/C, Paypal, 30% deposits before production, 70% balance to be paid before deliverying(Western Union are welcome)

Sample will be delivered within 7 working days.

Discounts are offered based on order quanlityes.

MOQ:sample order are acceptable

Delivery ways:DHL,UPS,FedEx,TNT, door to door,by sea,by air,etc.

Our products ranges:
LED plant grow lights for agricultural lighting;
LED aquarium lights for fish tanks,corals,etc;

Warmly welcome to take a visit on our factory at any time and we will pick you up at the airport in Shenzhen.

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Shenzhen Phlizon Technology Co.,Ltd. , https://www.philizon.com