CN210613411U - A tubular static mixer for water treatment and medicine system thereof - Google Patents

Abstract

The utility model discloses a tubular static mixer for water treatment and a dosing system thereof, which comprises a mixer tube, wherein the mixer tube is of a round tube structure, and two ends of the mixer tube are opened; two SK type structural unit blades which are vertical to each other are arranged inside the mixer tube; and a medicine adding pipe is arranged on the mixer pipe and used for adding the medicine into the mixer pipe. The utility model provides an among the prior art static mixer and medicament throw with the great, longer problem of hybrid distance of the head loss that exists of in-process, both improved the mixing performance of medicament with rivers, reduced the head loss again effectively to the hybrid distance has been shortened.

Description

A tubular static mixer for water treatment and medicine system thereof

Technical Field

The utility model belongs to the technical field of water treatment, concretely relates to a tubular static mixer for water treatment and medicine system thereof.

Background

The static mixer is a pipeline type mixer formed by fixing static mixing elements in a pipeline in a certain arrangement mode, and consists of embedded blades and a pipeline, wherein the blades play a role in cutting, folding and twisting water flow and recombine the water flow, so that the medicament and the water flow are uniformly mixed. Compared with a mechanical mixer, the static mixer has the advantages of small space requirement, low production cost and installation cost, suitability for mixing with low shear rate, good self-cleaning capability and low operation and maintenance cost.

Because the static mixer does not need to be provided with an additional structure, the occupied area can be saved, and the civil engineering investment can be reduced, so that most water plants adopt the static mixer to mix and add the medicament and the raw water, and the mixing effect and the energy consumption of the static mixer directly influence the treatment effect and the operation cost of the whole water plant. However, the existing static mixer has the defects of large head loss, high operation energy consumption, poor mixing effect when the flow change is small, easy damage of mixing elements, inconvenient maintenance and management and the like.

The application number is "201621237548.9", the chinese utility model patent of name "pipeline formula flocculation reaction static mixer" discloses a pipeline static mixer, mainly includes blender pipeline body, water inlet and delivery port, and it is equipped with mixed vortex pipeline on blender pipeline body internal surface, and vortex pipeline internal surface is the churning structure of convex-concave connection in turn, is equipped with a set of medicine nozzle of installing in corresponding concave platform circle on mixing the vortex pipeline. This patent is added medicine and is made medicament and raw water intermixture through the vortex effect of vortex structure on the hybrid tube length direction at the multiple spot on hybrid tube length direction, and the shortcoming of this patent is that spout medicine nozzle is in large quantity, is difficult for supervisory control, and blocks up easily to the vortex effect is not showing notably, mixes the effect not ideal.

The Chinese utility model patent with the application number of '201721238474.5' and the name of 'a compound tubular static mixer' discloses a compound tubular static mixer, including the static mixer pipe, it has connect into the pencil to connect on it, advances the pencil rear end and is equipped with the fin that stretches out to the rear end to one side, and the fin rear end is provided with dextrorotation unit piece and levogyration unit piece in turn. The shortcoming of this patent is that the single-point adds the medicine, adds the medicine inhomogeneous, is unfavorable for the quick and even mixture of medicament and water, and the fin that adopts damages easily, increases the maintenance cost, this patent moreover static mixer head loss great, the operation energy consumption is higher.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem and the shortcoming that exists among the prior art, the utility model provides a tubular static mixer for water treatment and medicine system thereof has solved among the prior art that static mixer and medicament are thrown and have thrown the great, longer problem of hybrid distance of the head loss that exists among the feed process, has both improved the mixing performance of medicament and rivers, has reduced the head loss again effectively to the hybrid distance has been shortened.

Therefore, the utility model adopts the following technical scheme:

a tubular static mixer for water treatment comprises a mixer tube, wherein the mixer tube is of a round tube type structure and is open at two ends; two SK type structural unit blades perpendicular to each other are arranged inside the mixer tube.

Preferably, the shape of the SK type structural unit blade is a spiral twisted by 180 degrees, and the overall length-diameter ratio of the two unit blades is 4: 3.

Preferably, the mixing elements of the blades of the SK-type structural unit are attached in the duct of the mixer tube with a thickness determined according to the strength requirements of the actual application.

Preferably, both ends of the mixer tube are provided with connecting flanges for disassembling, cleaning and replacing the static mixer.

According to the dosing system of the tubular static mixer for water treatment, the dosing pipe is arranged on the mixer pipe and used for adding the medicament into the mixer pipe.

Preferably, the dosing pipes are hollow round pipes, the number of the dosing pipes is three, the dosing pipes are annularly arranged around the central shaft of the mixer pipe, and the adjacent dosing pipes form an included angle of 120 degrees; when the diameter of the mixer tube is DN600, the distance from the orifice of the dosing tube to the inner wall of the mixer tube is 190 mm.

Preferably, the tail end of the medicine feeding pipe is provided with an inclined plane with an inclination angle of 45 degrees, and the outflow direction of liquid medicine on the inclined plane is consistent with the water flow direction.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the blade design of the SK type mixer is selected for fitting streamline, the head loss is small, and the occupied area is small. Three-point dosing is adopted to improve the mixing effect and shorten the length of the pipe section.

(2) The SK type static mixer is used as an optimized prototype, the pipe diameter of the static mixer is determined by the scale of a water plant, and the size parameters of the static mixer and a dosing system of the static mixer are calculated by using CFD simulation to compare the factors of water mixing uniformity, pressure drop, installation length, consumable material and the like in the SK type static mixer with different length-diameter ratios, torsion angles, dosing forms and unit numbers.

(3) The blade form that this product adopted can reduce head loss, and the pressure drop only has 51% of traditional SY type tubular static mixer, can save a large amount of power consumptions for the water works. Simultaneously because this product blade volume is less than traditional SY type tubular static mixer, consequently the blade consumptive material reduces to 30% of SY type, can practice thrift tubular static mixer's cost of manufacture.

(4) The medicine mode that this product adopted is under the less condition of influence to trunk line pressure drop, has improved mixed effect by a wide margin, and the required distance of medicament misce bene has shortened 50% with traditional SY type tubular static mixer, can reduce water plant area.

(5) The product is suitable for mixing raw water in water treatment with a coagulating agent, a disinfecting agent and the like, can effectively reduce the consumption of manufacturing materials, reduce the floor area and the civil engineering cost, and can save a large amount of electric charge compared with mechanical stirring requiring additional power and a traditional SY type static mixer, thereby achieving the purposes of energy conservation and emission reduction.

Drawings

FIG. 1 is a middle longitudinal section structure view of a tubular static mixer for water treatment and a dosing system thereof provided by the present invention.

Fig. 2 is a schematic cross-sectional structural view of a tubular static mixer for water treatment and a dosing system thereof provided by the present invention.

Fig. 3 is a schematic perspective view of a tubular static mixer for water treatment and a dosing system thereof according to the present invention.

Description of reference numerals: 1. a connecting flange; 2. a medicine feeding pipe; 3. an SK-type structural unit blade; 4. a mixer tube.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are only used for explaining the present invention, but not for limiting the present invention.

As shown in fig. 1-3, the utility model discloses a tubular static mixer for water treatment, which comprises a mixer tube 4, wherein the mixer tube 4 is of a round tube structure and is open at two ends; inside the mixer tube 4 are arranged two SK-type building block blades 3 perpendicular to each other.

Specifically, the shape of the SK type structural unit blade 3 is a spiral twisted by 180 degrees, and the overall length-diameter ratio of the two unit blades is 4: 3.

In particular, the mixing elements of the SK-type structural unit blades 3 are received in the ducts of the mixer tube 4, the thickness of which is determined by the strength requirements of the actual application.

Specifically, both ends of the mixer tube 4 are provided with connecting flanges 1 for disassembling, cleaning and replacing the static mixer.

The utility model also discloses a charge system of foretell tubular static mixer for water treatment, be equipped with on the mixer tube 4 and add pencil 2 for add the medicament in to mixer tube 4.

Specifically, the dosing pipes 2 are hollow round pipes, the number of the dosing pipes is three, the dosing pipes are annularly arranged around the central axis of the mixer pipe 4, and the adjacent dosing pipes form an included angle of 120 degrees; when the diameter of the mixer tube 4 is DN600, the orifice of the dosing tube 2 is 190mm from the inner wall of the mixer tube 4.

Specifically, the tail end of the medicine feeding pipe 2 is provided with an inclined plane with an inclination angle of 45 degrees, and the outflow direction of the liquid medicine on the inclined plane is consistent with the water flow direction.

Examples

The utility model provides a tubular static mixer and medicine system for water treatment, includes mixer tube 4, is connected with on the static mixer tube 4 and adds pencil 2, is provided with two SK type constitutional unit blades 3 of mutually perpendicular in the static mixer tube 4 of static mixer tube 4 and the static mixer tube 4 inside of adding pencil 2 junction rear end. The dosing pipe 2 adopts a hollow round pipe, the dosing pipes 2 with the same diameter are annularly arranged around the central axis of the main pipeline of the mixer pipe 4, the adjacent dosing pipes form an included angle of 120 degrees, and when the diameter of the mixer pipe 4 is DN600, the distance between the pipe orifice of the dosing pipe 2 and the inner wall of the mixer pipe 4 is 190 mm. The tail end of the medicine adding pipe 2 is cut into an inclined plane with an inclination angle of 45 degrees, and the outflow direction of liquid medicine on the inclined plane is consistent with the water flow direction, so that the medicine is favorably added.

Two SK type structure unit blades 3 perpendicular to each other are composed: each unit blade is in a spiral shape twisted by 180 degrees, and the overall length-diameter ratio of the two unit blades is 4: 3. The mixing element is connected in the pipe, and the thickness of the mixing element is determined according to the strength requirement of practical application. Both ends of the static mixer tube 4 are provided with connecting flanges 1, and the static mixer can be disassembled, cleaned and replaced when necessary.

In the use process, raw water enters from the port of the static mixer tube 4, and finally flows out from the other port after being treated. The medicament is uniformly added into the raw water through the medicament adding pipe 2, and the fluids in different flow directions can be dispersed and mixed. The three-tube dosing mode can greatly shorten the mixing length without obviously increasing the pressure drop. Raw water and medicament pass through two SK type constitutional unit blades 3 that are mutually perpendicular, and the effect that the blade plays cutting, folding, torsion to rivers in the pipeline makes medicament and rivers further misce bene.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle scope of the present invention should be included within the protection scope of the present invention.

Claims (6)

1. A tubular static mixer for water treatment, comprising a mixer tube (4), characterized in that: the mixer tube (4) is of a circular tube type structure, and two ends of the mixer tube are open; two SK type structural unit blades (3) which are vertical to each other are arranged inside the mixer tube (4); the shape of the SK type structural unit blade (3) is a spiral twisted by 180 degrees, and the overall length-diameter ratio of the two unit blades is 4: 3.

2. A tubular static mixer for water treatment according to claim 1, characterized in that: the mixing elements of the SK-type unit blades (3) are connected in the duct of the mixer tube (4), and the thickness of the mixing elements is determined according to the strength requirement of practical application.

3. A tubular static mixer for water treatment according to any of claims 1 to 2, characterized in that: and both ends of the mixer tube (4) are provided with connecting flanges (1) for disassembling, cleaning and replacing the static mixer.

4. A dosing system for a static mixer of the tubular type for water treatment according to any of the claims from 1 to 3, characterized in that: the mixer tube (4) is provided with a medicine adding tube (2) for adding medicine into the mixer tube (4).

5. The dosing system for a static mixer of the tubular type for water treatment according to claim 4, characterized in that: the drug feeding pipes (2) are hollow round pipes, the number of the drug feeding pipes is three, the drug feeding pipes are annularly arranged around the central shaft of the mixer pipe (4), and the adjacent drug feeding pipes form an included angle of 120 degrees; when the diameter of the mixer tube (4) is DN600, the distance between the opening of the dosing tube (2) and the inner wall of the mixer tube (4) is 190 mm.

6. The dosing system for a static mixer of the tubular type for water treatment according to claim 5, characterized in that: the tail end of the medicine feeding pipe (2) is provided with an inclined plane with an inclination angle of 45 degrees, and the outflow direction of liquid medicine on the inclined plane is consistent with the water flow direction.

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