CN205700192U - Micro-resistance pipe-line mixer - Google Patents

Abstract

The utility model discloses a micro-resistance pipeline mixer, which comprises a mixing tube provided with a feeding part. The mixing tube includes a feeding section at the front and a flaring section connected with the feeding section. The flaring The section is provided with vanes that can make the medium form a vortex, and the flow rate of the medium in the flared section is greater than or equal to the flow rate in the narrowed section. The energy consumption of the medium in the mixing tube of the utility model is small, the water head loss is reduced, the flow rate of the medium is guaranteed, the effective mixing area of the medicine and the medium is large, the mixing time is long, the mixing precision is high, and the mixing effect is good.

Description

Micro resistance pipeline mixer

technical field

The utility model belongs to the field of dosing and mixing devices in water treatment, in particular to a micro-resistance pipeline mixer.

Background technique

In the water treatment process, pipeline mixers are widely used because of their simple structure, no mechanical moving parts, "no power required" and simple management and maintenance. In order to achieve superior results in water purification treatment, chemical liquid is usually added to the front of the pipeline mixer. The mixing effect of raw water and chemical liquid and the choice of mixer are directly related to the treatment of the entire water treatment project.

Existing pipeline mixers usually have blades in the mixing tube, and the medium hits the blades to form a vortex to improve the mixing effect of the medicament and the medium. However, a large amount of water flow is blocked and restricted by cross fixed blades, and a large amount of water head, water volume and energy consumption are lost.

In order to lengthen the mixing path of the material and the medium, make the two fully mixed, and improve the mixing uniformity of the two, Chinese patent CN 204429124 discloses a static mixer. Larger than the diameter of the two ports, a plurality of mixing blades are installed in the middle part of the pipe, and the mixing blades are connected to each other at 90° crossing end to end. The mixing blade lengthens the path of liquid mixing, so that the two liquids are fully mixed. However, in this patent, the inner diameter of the mixing blade extends to the entire middle part. During the circulation process, the liquid continuously hits the mixing blade, resulting in a large loss of water head, and the speed of the water flow is slowed down, and the energy consumption is large, so it is not suitable for use in the field of water treatment.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a micro-resistance pipeline mixer with good mixing effect and low energy consumption.

The technical solution adopted by the utility model to solve the technical problem is: a micro-resistance pipeline mixer, including a mixing tube with a feeding part, the mixing tube includes a feeding section at the front and is connected to the feeding section The flaring section is provided with vanes that can make the medium form a vortex, and the flow rate of the medium in the flaring section is greater than or equal to the flow rate in the constricting section.

In the utility model, the vane is arranged at the center of the mixing tube, the diameter of the flaring section of the mixing tube is larger than that of the feeding section, there is a large space between the blade and the inner wall of the mixing tube, and most of the medium can be attached to the inside of the mixing tube The wall smoothly flows in this space, the flow in the flaring section will not decrease compared with the feeding section, the flow velocity of the medium in the flaring section will not slow down, and the head loss in the mixing tube is reduced, reducing energy consumption ; Moreover, the rest of the small part of the medium cross-flows between the blades to form a vortex, which prolongs the stroke of the agent, prolongs the mixing time of the agent and the medium, and realizes the full and uniform mixing of the agent and the medium; The medium forms turbulent flow, which further agitates the medium, improves the mixing accuracy of the medicament and the medium, and improves the mixing effect of the medicament and the medium; secondly, the medium flows from the feeding section to the flaring section, and at the junction of the feeding section and the flaring section At the place, due to the sudden increase of the diameter of the pipe, the water flow will form a large turbulence, forming a velocity gradient of the water flow, which strengthens the mixing effect of the medium and the agent, and the mixing uniformity is better and the mixing precision is higher.

Further, the feeding part is arranged in the feeding section. The feeding part is set in the feeding section with a relatively small diameter in front of the flaring section, so that the medicine can flow through the junction of the feeding section and the flaring section. Under the action of turbulent flow at the junction, the mixing effect of the medicine and the medium Even better, and the feeding part is set at the front part of the mixing tube, which prolongs the circulation stroke of the medicament and prolongs the mixing time of the medicament and the medium.

Further, a discharge section is provided at the rear of the mixing tube, and the flow rate of the discharge section is equal to the flow rate of the feed section. The pipe diameter of the discharge section is equal to the pipe diameter of the feed section, which is smaller than the pipe diameter of the flared section, so that the junction of the flared section and the discharge section forms a larger turbulence again, which further improves the mixing of the agent and the medium Effect.

Further, the vanes are arranged at intervals along the flow direction of the medium. The blades form a certain resistance to the medium, thereby forming a vortex on the blades, which improves the mixing accuracy of the medium and the medicament, and the blades are arranged at intervals along the length of the mixing tube to make the medium and the medicament in the flared section mix more uniformly , has little effect on the flow rate of the medium.

Further, the mixing tube is provided with a material distribution channel, and the side wall of the material distribution channel is densely covered with discharge holes connecting the mixing tube and the feeding part. The medicament flows to the medium in the mixing tube along the discharge hole, which not only increases the mixing area between the medium and the medicament, prolongs the contact time between the medicament and the medium, and expands the mixing area, but also can be applied to the situation where the flow rate of the medium in the mixing tube is small.

Further, the distribution channel includes three pipes arranged at an angle to the flow direction of the medium. The mixing area of the medium and the medicament in the mixing tube is evenly distributed and the mixing area is large.

Further, the pipe bodies are evenly arranged along the direction perpendicular to the flow of the medium. The medicament enters the mixing tube at an angle perpendicular to the flow direction of the medium, the impact force and impact speed of the medium on the medicament reach the maximum, and the mixing effect is the best.

Further, the feeding part includes a first feeding port, a second feeding port and a third feeding port respectively connected to the three pipe bodies. The three tubes are not connected to each other, and each tube is equipped with an independent feeding port, and the mixing tube is fed from three directions to ensure that the medicament can flow through the entire tube, increasing the mixing area of the medium and the medicament in the mixing tube, and the medicament Mixes more evenly with medium for better mixing.

Further, the three tubes communicate with each other. The structure is simple, and only one feeding port needs to be set at the end of the pipe body.

Further, the material distributing channel is a single tube structure, and one end of the single tube communicates with the feeding part. The structure is simple, and the number of feeding ports is reduced.

The beneficial effects of the utility model are: the energy consumption of the medium in the mixing tube is small, the head loss is reduced, the flow velocity of the medium is ensured, the effective mixing area of the medicament and the medium is large, the mixing time is long, and the mixing precision is high, so that the mixing effect is good .

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic cross-sectional structure diagram of the utility model.

Figure 3 is a schematic diagram of the cross-sectional structure of the feed section.

Figure 4 is the second schematic cross-sectional structure of the feed section.

Fig. 5 is a schematic diagram of the cross-sectional structure of the distribution channel and the mixing tube.

Fig. 6 is the second schematic diagram of the cross-sectional structure of the distribution channel and the mixing tube.

Fig. 7 is the third schematic diagram of the cross-sectional structure of the distribution channel and the mixing tube.

Fig. 8 is a schematic diagram 4 of the cross-sectional structure of the distribution channel and the mixing tube.

Fig. 9 is a schematic diagram of the cross-sectional structure of the material distribution channel and the mixing tube V.

detailed description

In order to enable those skilled in the art to better understand the scheme of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the utility model. Obviously, the described The embodiments are only some of the embodiments of the present utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

Embodiment one

Referring to Figures 1-5, a micro-resistance pipeline mixer includes a mixing tube 1, the mixing tube 1 includes a feed port 16 and a discharge port, and a flow channel 12 for medium circulation is formed in the mixing tube 1. The circulation channel 12 communicates with the feed port 16 and the discharge port, and the mixing tube 1 includes a feed section 13, a flaring section 14 and a discharge section 15 along the flow direction of the medium, wherein the inner diameters of the feed section 13 and the discharge section 15 The same, and less than the inner diameter of the flaring section 14, the flaring section 14 is provided with a vane 3, when the medium flows to the vane 3, a vortex can be formed, and the flow rates of the feed section 13 and the discharge section 15 are equal, and the flaring The flow in section 14 is greater than or equal to the flow in feed section 13 .

The feeding section 13 is provided with a feeding portion 11 , which can be a through-hole structure opened on the side wall of the mixing tube 1 , or a tube structure communicating with the flow channel 12 in the mixing tube 1 . A distributing channel 2 is provided below the feeding part 11 in the mixing tube 1 , and discharge holes 21 are evenly and densely arranged on the side walls of the material distributing channel 2 .

As shown in Figure 5, the material distribution channel 2 is three pipe bodies 22 arranged radially along the mixing tube 1, and the angles between the three pipe bodies 22 are all 120°. Any number of tube bodies within 1. The three pipe bodies 22 are arranged at a certain angle with the flow direction of the medium. Of course, the best form is that the three pipe bodies 22 are perpendicular to the flow direction of the medium, and the three pipe bodies 22 are independently arranged, that is, the three pipe bodies 22 is not connected, but the ends of the three tubes 22 are connected, at this time the blade 3 can be fixedly connected to the support rod 31 extending along the length direction of the mixing tube 1, and one end of the support rod 31 is fixedly connected to the three The joint of the pipe body 22 has a simpler structure. The other ends of the three pipe bodies 22 are respectively connected to three independent feeding ports, that is, the first feeding port 111, the second feeding port 112 and the third feeding port 113 are evenly arranged along the outer wall of the mixing tube 1, so that when adding the medicament, through The first feeding port 111 pours into a tube, the medicine flows into the mixing tube 1 through the discharge holes 21 densely distributed on the side wall of the tube body, and pours into the other tube through the second feeding port 112, and the medicine passes through the densely distributed in the tube. The discharge hole on the side wall of the body flows into the mixing tube 1, and pours into the remaining tube body through the third feeding port 113, and the medicament flows into the mixing tube 1 through the discharge holes densely distributed on the side wall of the tube body. At this time, The length of the tube body 22 is relatively short, and the medicament can flow through the entire tube body 22 .

The medium flows from the feed port 16 through the flow channel 12 to the discharge port, and the adjusted medicine enters the flow channel 12 in the mixing tube 1 through the three feed ports arranged on the feed section 13, and the distribution channel 2 extends the entire The inner diameter of the mixing tube 1 is provided with three tube bodies 22, and the medicament is injected into the circulation channel 12 perpendicular to the flow direction of the medium through the discharge holes 21 uniformly densely distributed on the side walls of the tube bodies 22. The medium mixed with medicament flows from the feed section 13 to the flaring section 14. At the junction of the feed section 13 and the flaring section 14, due to the sudden increase of the pipe diameter, a large turbulent flow is formed, which makes the mixing of the medicament and the medium easier. Uniformity, enhanced mixing effect, most of the medium with medicament flows smoothly along the inner wall of the mixing tube 1, the flow rate of the flared section 14 is not reduced, the head loss is small, the energy consumption is low, and the flow rate of the flared section 14 is maintained The flow rate of the feeding section 13 is equal to or greater than the flow rate of the feeding section 13; the remaining small part of the medium mixed with the medicament flows along the center of the mixing tube 1, and hits the blade 3 located in the center of the flared section 14 to form a vortex, which prolongs the medicament The mixing time with the medium realizes the uniform mixing of the medicament and the medium, further enhancing the mixing effect, and the medium with the medicament continues to flow. When it flows to the junction of the flaring section 14 and the discharge section 15, due to the pipe The diameter suddenly narrows, resulting in a sudden decrease in the flow rate, which makes the turbulent flow form again at the junction, and strengthens the mixing effect of the agent and the medium again, so that the agent is evenly mixed in the medium flowing out of the outlet.

Embodiment two

The difference between this embodiment and the first embodiment is that, as shown in FIG. 6 , three pipe bodies 22 are connected to each other, so that only one of the pipe bodies needs to be provided with a feeding portion 11 at the end. At this time, the ends of the other two pipe bodies that are not connected to the feeding part 11 can be extended to the inner wall of the mixing tube 1, or can be set to have a certain distance from the inner wall of the mixing tube 1. At this time, the ends can be It has an open structure and can also be closed.

Embodiment Three

The difference between this embodiment and Embodiment 1 is that, as shown in Figure 7, the material distribution channel 2 is a single tube 23 structure, and the side walls of the single tube 23 are uniformly and densely covered with discharge holes 21, that is, the single tube 23 extends the entire The inner diameter of the mixing tube 1 is set, one end is connected to the feeding part 11, and the other end can be extended to the inner wall of the mixing tube 1, or it can be set so that there is a certain distance between the other end and the inner wall of the mixing tube 1. At this time, its end The portion can be open or closed.

Embodiment four

As shown in FIG. 8 , the distribution channel 2 can be an L-shaped bent tube 23 , a part of the bent tube 23 is set perpendicular to the flow direction of the medium, and the other part is set parallel to the flow direction of the medium. Of course, as shown in FIG. 9 , a part of the bent pipe 23 is arranged perpendicular to the flow direction of the medium, and the other part is arranged at a certain oblique angle to the flow direction of the medium.

The above-mentioned specific embodiments are used to explain the utility model, rather than to limit the utility model. Within the spirit of the utility model and the scope of protection of the claims, any modifications and changes made to the utility model fall into the scope of the utility model. scope of protection.

Claims (10)

1. A micro-resistance pipeline mixer, including a mixing tube (1) provided with a feeding part (11), characterized in that: the mixing tube (1) includes a feeding section (13) at the front and is connected to the feeding section The material section (13) is connected with the flaring section (14). The flaring section (14) is equipped with blades (3) that can make the medium form a vortex. The flow rate of the flaring section (14) is greater than or equal to that of the inlet The flow rate of material section (13). 2. The micro-resistance pipeline mixer according to claim 1, characterized in that: the feeding part (11) is arranged in the feeding section (13). 3. The micro-resistance pipeline mixer according to claim 1, characterized in that: the rear part of the mixing tube (1) is provided with a discharge section (15), and the flow rate of the discharge section (15) is different from that of the feed Segment (13) has equal flow. 4. The micro-resistance pipeline mixer according to claim 1, characterized in that: the blades (3) are arranged at intervals along the flow direction of the medium. 5. The micro-resistance pipeline mixer according to claim 1, characterized in that: the mixing tube (1) is provided with a material distribution channel (2), and the side wall of the material distribution channel (2) is densely covered with communicating The mixing tube (1) and the discharge hole (21) of the feeding part (11). 6 . The micro-resistance pipeline mixer according to claim 5 , characterized in that: the distribution channel ( 2 ) includes three pipe bodies ( 22 ) arranged at angles to the flow direction of the medium. 7 . 7. The micro-resistance pipeline mixer according to claim 6, characterized in that: the pipe body (22) is evenly arranged along the direction perpendicular to the flow of the medium. 8. The micro-resistance pipeline mixer according to claim 6, characterized in that: the feeding part (11) includes a first feeding port (111), a second feeding port ( 112) and the third feeding port (113). 9. The micro-resistance pipeline mixer according to claim 7, characterized in that: the three pipe bodies (22) communicate with each other. 10. The micro-resistance pipeline mixer according to claim 5, characterized in that: the distribution channel (2) is a single tube (23) structure, and one end of the single tube (23) is connected to the feeding part (11) connected.