Inclined tube packing water purification in recent years, city water supply enterprise vigorous development, formed from shallow pool principle of theory development of inclined tube settling basin has also become more widely used. Separation in China started in 1965 to clarify the pool area and the experiment of inclined plate, and water plant in fuzhou in 1968 did the inclined tube bed cleaning test, 1972 on the first productive to flow inclined tube sedimentation tank officially put into use. With the deepening of the theoretical research and production practice of continuous accumulation, quanxing inclined pipe and setting technology is evolving. Inclined tube packing water purification is inclined tube packing factory specializing in the production and installation

   Set inclined tube sedimentation tank pool for L long, pool horizontal flow velocity V, particles sink velocity u0, ideally, L/H = V/u0. Visible L and V at constant value, the shallow pool body, can be to remove the suspended particles is smaller. If use horizontal clapboard, H is divided into three layers, each layer upon layer deep H / 3, under the condition of constant u0 and v, just L / 3, can remove u0 of particles. Also the total volume can be reduced to 1/3 of the original. Long constant, if the pool because the pool was deeply H / 3, 3 v, horizontal velocity can is still sinking speed for u0 particles to remove it, namely enhanced processing times. At the same time settling basin can be divided into n layers can increase the processing capacity of n times. This is the beginning of the 20th century, the true (Hazen) put forward the theory of shallow pool.

   In order to create the ideal laminar flow conditions, improve the removal rate, the need to control the thunder are provided for Re =, inclined tube due to wet long weeks p, so the Re can be controlled under 200. Is far less than 500 laminar flow lines. From froude number Fr =, due to the long P, W, Fr number can reach the 10-3-10-4.

Differential flow inclined tube sedimentation tank of hydraulic calculation can be summarized as the following three types:

   According to precipitate the most ignored the end face of separable sinking velocity obtained by usc relationship with us as follows: usc = us, s is a constant. S value is known as the characteristic parameter of the inclined tube, though the cross section shape.

   Considering the particle sedimentation in the process of flocculation factor, assuming that particles sinking speed to accelerate change, such as sink and set the starting speed is zero. Considering the flow rate of the tube division, the inclined tube length is: -d * tg theta

   Type a is granule sinking speed in the acceleration of change, namely a = du/dt

   Appeal three methods, each have shortcomings, in there is no perfect calculation method of the inclined tube sedimentation tank before, think separation particle diameter can be used as the starting point of inclined pipe and setting calculation.

  3. The inclined tube sedimentation tank flow design

The inclined tube sedimentation tank design needs the following parameters:

   The difference of inclined tube filler sedimentation tank in interior decorating, will affect the design of intercept speed value. Generally the larger inclined tube sedimentation tank, due to its water distribution and water collection it's not easy to ensure uniform. And design appropriate selection index is lower than the smaller inclined tube sedimentation tank. In the design of current to flow in different inclined tube sedimentation tank, intercept speed is generally 0.15 0.40 mm/s.

   At present domestic differential flow inclined tube sedimentation tank section almost adopt line is hexagonal, general use cut inside diameter as the pipe diameter. Vision of the currently used in water treatment to the flow of inclined tube sedimentation tank diameter for 25 to 35 mm.

   Less than 50 cm, the length of the inclined tube depends on the processing and inclined tube sedimentation tank, deep pool.

    Inclined tube packing water purification in recent years, city water supply enterprise vigorous development, formed from shallow pool principle of theory development of inclined tube settling basin has also become more widely used. Separation in China started in 1965 to clarify the pool area and the experiment of inclined plate, and water plant in fuzhou in 1968 did the inclined tube bed cleaning test, 1972 on the first productive to flow inclined tube sedimentation tank officially put into use. With the deepening of the theoretical research and production practice of continuous accumulation, quanxing inclined pipe and setting technology is evolving. Inclined tube packing water purification is inclined tube packing factory specializing in the production and installation

    Set inclined tube sedimentation tank pool for L long, pool horizontal flow velocity V, particles sink velocity u0, ideally, L/H = V/u0. Visible L and V at constant value, the shallow pool body, can be to remove the suspended particles is smaller. If use horizontal clapboard, H is divided into three layers, each layer upon layer deep H / 3, under the condition of constant u0 and v, just L / 3, can remove u0 of particles. Also the total volume can be reduced to 1/3 of the original. Long constant, if the pool because the pool was deeply H / 3, 3 v, horizontal velocity can is still sinking speed for u0 particles to remove it, namely enhanced processing times. At the same time settling basin can be divided into n layers can increase the processing capacity of n times. This is the beginning of the 20th century, the true (Hazen) put forward the theory of shallow pool.

    In order to create the ideal laminar flow conditions, improve the removal rate, the need to control the thunder are provided for Re =, inclined tube due to wet long weeks p, so the Re can be controlled under 200. Is far less than 500 laminar flow lines. From froude number Fr =, due to the long P, W, Fr number can reach the 10-3-10-4.

Differential flow inclined tube sedimentation tank of hydraulic calculation can be summarized as the following three types:

According to precipitate the most ignored the end face of separable sinking velocity obtained by usc relationship with us as follows: usc = us, s is a constant. S value is known as the characteristic parameter of the inclined tube, though the cross section shape.

    Considering the particle sedimentation in the process of flocculation factor, assuming that particles sinking speed to accelerate change, such as sink and set the starting speed is zero. Considering the flow rate of the tube division, the inclined tube length is: -d * tg theta

    Type a is granule sinking speed in the acceleration of change, namely a = du/dt

    Appeal three methods, each have shortcomings, in there is no perfect calculation method of the inclined tube sedimentation tank before, think separation particle diameter can be used as the starting point of inclined pipe and setting calculation.

  3. The inclined tube sedimentation tank flow design

   The inclined tube sedimentation tank design needs the following parameters:

   The difference of inclined tube filler sedimentation tank in interior decorating, will affect the design of intercept speed value. Generally the larger inclined tube sedimentation tank, due to its water distribution and water collection it's not easy to ensure uniform. And design appropriate selection index is lower than the smaller inclined tube sedimentation tank. In the design of current to flow in different inclined tube sedimentation tank, intercept speed is generally 0.15 0.40 mm/s.

    At present domestic differential flow inclined tube sedimentation tank section almost adopt line is hexagonal, general use cut inside diameter as the pipe diameter. Vision of the currently used in water treatment to the flow of inclined tube sedimentation tank diameter for 25 to 35 mm.

    Less than 50 cm, the length of the inclined tube depends on the processing and inclined tube sedimentation tank, deep pool.