CN212596514U

CN212596514U - Ejector for adding coagulant

Info

Publication number: CN212596514U
Application number: CN202021102379.4U
Authority: CN
Inventors: 丁建; 王祖武; 王淑惠
Original assignee: Jiangsu Hai Rong Thermal Energy Environmental Engineering Co ltd
Current assignee: Jiangsu Hairong Water Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-02-26
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses an injector for adding coagulant, which comprises an injection part, a mixing part and a diffusion part, wherein the mixing part comprises a mixing cylinder, a mixing cavity is formed in the mixing cylinder, and a suction pipe is obliquely arranged on the mixing cylinder; the spraying part comprises a liquid inlet pipe, the liquid inlet pipe is arranged at the inlet end of the mixing cylinder and extends into the mixing cavity, a contraction pipe is formed at one end of the liquid inlet pipe extending into the mixing cavity, and a nozzle is arranged at one end of the contraction pipe, which is far away from the liquid inlet pipe; the diffusion part comprises a body fixed at the outlet end of the mixing cylinder, a throat pipe communicated with the inside and the outside of the mixing cavity is arranged in the body, and one end of the throat pipe departing from the mixing cavity is formed into a diffusion pipe; the liquid inlet pipe, the contraction pipe, the nozzle, the throat pipe and the diffusion pipe extend along the axis direction and are coaxially arranged; along the flow direction of the fluid in the liquid inlet pipe, the distance between the first central axis of the liquid inlet pipe and the second central axis of the suction pipe is gradually reduced. The utility model discloses availability factor when can improve the medicament and put in.

Description

Ejector for adding coagulant

Technical Field

The utility model relates to an ejector for coagulant addition.

Background

In waste water treatment, need to add some medicaments that contain coagulant, flocculating agent or coagulant aid composition to the water in, deposit the particulate matter in the waste water, for the convenience of adding, the medicament is often made into the aqueous solution, then drop into the water with these medicaments, at present, for the convenience of adding, often establish the elevated tank by the pond, flow into the water with the medicament depending on gravity, though this mode of puting in the medicament is comparatively simple and convenient, it needs to rely on water self to spread to drop in the medicament, some medicaments come to not reach to accomplish the reaction with the water on every side and subside to the bottom, make the availability factor of medicament not high, need to put in the medicament of excess and can reach corresponding effect.

SUMMERY OF THE UTILITY MODEL

In order to improve the use efficiency when the medicament is put in, the utility model provides an injector for adding coagulant, which comprises an injection part, a mixing part and a diffusion part, wherein the mixing part comprises a mixing barrel extending along an axial direction, two opposite ends of the mixing barrel are respectively formed into an inlet end and an outlet end, a mixing cavity is formed in the mixing barrel, a suction pipe is arranged on the mixing barrel, and the suction pipe is obliquely arranged on the mixing barrel;

the spraying part comprises a liquid inlet pipe, the liquid inlet pipe is detachably arranged on the inlet end of the mixing cylinder and extends into the mixing cavity, a contraction pipe is formed at one end of the liquid inlet pipe extending into the mixing cavity, a nozzle is arranged at one end of the contraction pipe, which is far away from the liquid inlet pipe, and the contraction pipe is in a conical shape;

the diffusion part comprises a body fixed at the outlet end of the mixing cylinder, a throat pipe communicated with the inside and the outside of the mixing cavity is arranged in the body, one end of the throat pipe departing from the mixing cavity is formed into a diffusion pipe, and the side of the diffusion pipe is conical;

the liquid inlet pipe, the contraction pipe, the nozzle, the throat pipe and the diffusion pipe extend along the axis direction and are coaxially arranged;

this feed liquor pipe has first axis, and this suction tube has the second axis, and along the fluidic flow direction in this feed liquor pipe, the distance between this first axis and the second axis diminishes gradually. Preferably, the taper angle of the convergent tube is 15-35 ° and the taper angle of the divergent tube is 10-20 °.

The utility model discloses when using, the medicament enters into the mixing chamber from the feed liquor pipe to produce the negative pressure, make outside water enter into the mixing chamber by the suction tube, with the medicament jointly spout behind choke and diffusion tube, when from the diffusion tube blowout, owing to have higher speed, make the medicament can spread farther distance, increase the mixed effect of medicament and water. The utility model discloses in, the suction tube slope sets up to make the suction tube incline towards the fluidic flow direction in the feed liquor pipe, with the reduction from the interference of the liquid of suction tube entering to entering into the medicament from the feed liquor pipe. The setting of diffusion mouth can make spun liquid can be at bigger within range diffusion to form to stirring to the water on every side, accelerate the mixing velocity of medicament and water, avoid or reduce the medicament and subside the submarine volume, thereby improve the availability factor of medicament.

In order to make the liquid enter the throat pipe smoothly and reduce the resistance, the end surface of one end of the mixing cavity facing to the outlet end is in a cone shape protruding outwards. Preferably, the end face of the mixing chamber at the end facing the outlet end has a cone angle of 80-120 °.

To avoid interference of liquid entering from the suction tube with the medicament ejected from the nozzle, the intersection of the first central axis and the second central axis is located within the constriction. The design can ensure that the liquid entering the mixing cavity from the suction pipe can firstly impact the outer side surface of the contraction pipe or the nozzle, thereby reducing the impact force of the liquid, enabling the part of the liquid and the medicament to jointly enter the throat pipe and be sprayed out from the diffusion pipe, and completing the mixing.

Specifically, the included angle between the first central axis and the second central axis is 40-50 degrees. In this angular range, the interference of the liquid entering the mixing chamber from the suction tube with the medicament can be effectively reduced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

Referring to fig. 1, the arrow labeled N points in the axial direction.

An injector for adding a coagulant, comprising an injection part 10, a mixing part 20 and a diffusion part 30, wherein the mixing part 20 comprises a mixing cylinder 21 extending along an axial direction, two opposite ends of the mixing cylinder 21 are respectively formed into an inlet end 211 and an outlet end 212, a mixing cavity 23 is formed in the mixing cylinder 21, a suction pipe 22 is arranged on the mixing cylinder 21, and the suction pipe is obliquely arranged on the mixing cylinder; along the liquid inlet direction of the suction pipe, the suction pipe is inclined towards the outlet end direction of the mixing cylinder. The suction pipe 22 has a second central axis 221, the direction of the arrow on which indicates the direction of the feed of the suction pipe in the drawing.

This injection portion 10 includes a feed liquor pipe 11, and this feed liquor pipe adopts threaded connection to stretch into the mixing chamber 23 on the entrance point 211 of mixing drum in, stretch into one of mixing chamber in this feed liquor pipe 11 and be formed with shrink tube 12, is provided with spout 13 on one of deviating from the feed liquor pipe of shrink tube, and this shrink tube is the taper. In this embodiment, the taper angle α of the shrink tube 12 is 25 °, and it is understood that in other embodiments, the taper angle α of the shrink tube 12 may be 15 °, 20 °, or 35 °.

The diffuser 30 includes a body 31 fixed to the outlet end of the mixing cylinder, a throat 32 communicating the inside and the outside of the mixing chamber is formed in the body, one end of the throat facing away from the mixing chamber is formed as a diffuser 33, and the diffuser 33 is tapered. In this embodiment, the taper angle θ of the diffuser tube is 20 °, and it is understood that in other embodiments, the taper angle θ of the diffuser tube may also be 10 °, or 15 °.

The liquid inlet pipe 11, the contraction pipe 12, the nozzle 13, the throat 32 and the diffusion pipe 33 all extend along the axial direction and are coaxially arranged. The liquid inlet pipe has a first central axis 100, an arrow on the central axis 100 indicates a flow direction of a fluid in the liquid inlet pipe, and a distance between the first central axis 100 and the second central axis 221 gradually decreases along the flow direction of the fluid in the liquid inlet pipe. In the present embodiment, the included angle β between the first central axis 100 and the second central axis 221 is 45 °, and it is understood that the included angle β may be 40 ° or 50 ° in other embodiments.

In this embodiment, the end surface 231 of the mixing chamber facing the outlet end is tapered to protrude outward. The end surface of the mixing chamber facing the outlet end has a cone angle gamma of 110 deg.. It will be appreciated that in other embodiments the taper angle γ may also be 80 °, 90 ° or 120 °.

The intersection point of the first central axis and the second central axis is positioned in the contraction pipe.

Claims

1. An ejector for adding a coagulant, comprising an ejector part, a mixing part and a diffuser part, wherein the mixing part comprises a mixing cylinder extending along an axial direction, two opposite ends of the mixing cylinder are respectively formed into an inlet end and an outlet end, a mixing cavity is formed in the mixing cylinder, a suction pipe is arranged on the mixing cylinder, and the suction pipe is obliquely arranged on the mixing cylinder;

this feed liquor pipe has first axis, and this suction tube has the second axis, and along the fluidic flow direction in this feed liquor pipe, the distance between this first axis and the second axis diminishes gradually.

2. An injector as claimed in claim 1 wherein the mixing chamber has an end surface facing the outlet end tapered to project outwardly.

3. A coagulant addition injector as set forth in claim 2 wherein the end face of the mixing chamber at the end facing the outlet end has a cone angle of 80-120 °.

4. The ejector for coagulant addition according to claim 1, characterized in that,

5. An injector as claimed in claim 4, wherein the angle between the first central axis and the second central axis is 40-50 °.

6. The ejector for coagulant addition according to claim 1, characterized in that,

the cone angle of the contraction tube is 15-35 degrees, and the cone angle of the diffusion tube is 10-20 degrees.