CN213569664U

CN213569664U - Device for accurately adding coagulant

Info

Publication number: CN213569664U
Application number: CN202021992039.3U
Authority: CN
Inventors: 倪健; 石大江; 陈军
Original assignee: Zhejiang Zcen Water Treatment Technology Co ltd
Current assignee: Zhejiang Zcen Water Treatment Technology Co ltd
Priority date: 2020-09-13
Filing date: 2020-09-13
Publication date: 2021-06-29
Anticipated expiration: 2030-09-13

Abstract

The utility model provides a device for accurately adding coagulant, which aims to solve the problems that the existing device for adding coagulant has poor feeding precision and the feeding amount is difficult to control accurately. The device for accurately adding the coagulant comprises a water inlet pump, a mixing reaction tank, a sedimentation tank and a coagulant dispenser; the coagulant dispenser comprises a shell, a driving motor, a threaded sleeve, a core rod, a piston cylinder and a tee joint, wherein the threaded sleeve is rotatably arranged on the shell, and a speed reducing mechanism is arranged between the driving motor and the threaded sleeve; the threaded sleeve is sleeved outside the core rod through threads, one end of the core rod is provided with a piston, the other end of the core rod is an anti-rotation part, the piston is arranged in the piston cylinder, the shell is provided with a mandrel guide groove, and the anti-rotation part is arranged in the mandrel guide groove in a sliding manner; and the three ports of the tee joint are respectively connected with a piston cylinder, a water inlet check valve and a water outlet check valve. Compared with the existing coagulant dispenser, the transmission ratio is larger, so that the coagulant dispenser can have higher accuracy on the coagulant filling amount.

Description

Device for accurately adding coagulant

Technical Field

The disclosure belongs to the technical field of water treatment, and particularly relates to a device for accurately adding a coagulant.

Background

In the tap water treatment process, one treatment link is to add a coagulant into a mixed reaction tank; the addition amount of the coagulant is added according to the amount of the flocculated flocks; however, in many current water treatment processes, most of the adopted coagulant adding devices do not add the coagulant according to the amount of the flocculated flocks, but add the coagulant quantitatively; in addition, the existing coagulant dispenser has poor dispensing precision during dispensing, and the precision can be further reduced after long-time use. Because the adding amount is difficult to control accurately, the actual demand amount and the adding amount have errors, and the water treatment effect is not ideal or the coagulant is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model provides a device for accurately adding coagulant, which aims to solve the problems that the existing device for adding coagulant has poor adding precision, the adding quantity is difficult and easy to control accurately, the actual demand quantity and the adding quantity have errors, and the water treatment effect is not ideal or the coagulant is wasted.

In order to solve the technical problem, the technical scheme adopted by the disclosure is as follows: a device for accurately adding a coagulant comprises a water inlet pump, a mixing reaction tank, a sedimentation tank and a coagulant dispenser; the water inlet pump is connected with the mixed reaction tank through a water inlet pipe, and the sedimentation tank is connected with a water outlet of the mixed reaction tank; a flocculation velvet image acquisition sensor is arranged in the mixed reaction tank; the coagulant dispenser comprises a shell, a driving motor, a threaded sleeve, a core rod, a piston cylinder and a tee joint, wherein the threaded sleeve is rotatably arranged on the shell, and a speed reducing mechanism is arranged between the driving motor and the threaded sleeve; the threaded sleeve is sleeved outside the core rod through threads, one end of the core rod is provided with a piston, the other end of the core rod is an anti-rotation part, the piston is arranged in the piston cylinder, the shell is provided with a mandrel guide groove, and the anti-rotation part is arranged in the mandrel guide groove in a sliding manner; the piston cylinder is connected with one connector of the tee joint in a sealing way, and the other two connectors of the tee joint are respectively connected with a water inlet one-way valve which is conducted from outside to inside and a water outlet one-way valve which is conducted from inside to outside in a sealing way.

The further improved scheme is as follows: the speed reducing mechanism comprises a driving gear connected with an output shaft of the driving motor and a driven gear arranged on the outer side wall of the threaded sleeve, and the diameter of the reference circle of the driven gear is larger than that of the driving gear.

The further improved scheme is as follows: the anti-rotation part of the core rod is a square part, and the mandrel guide groove is a square groove. The rotation prevention portion adopts a square portion, the mandrel guide groove is a square groove, and the threaded sleeve can be prevented from driving the mandrel to rotate when rotating.

The further improved scheme is as follows: the flocculation flock image acquisition sensors are provided with a plurality of flocculation flock image acquisition sensors which are scattered at different positions of the mixing reaction tank. The amount of flocculated flocks can be accurately measured.

The further improved scheme is as follows: the driving motor is a servo motor.

The further improved scheme is as follows: the device for accurately adding the coagulant also comprises a computer control end, and the flocculated pile body image acquisition sensor and the driving motor are connected with the computer control end.

The beneficial effect of this disclosure does: the content of the flocculated flocks can be measured by the flocculated flocks image acquisition sensor, so that the coagulant dispenser dispenses a corresponding amount of coagulant according to the content of the flocculated flocks. In addition, in the coagulant dispenser disclosed by the disclosure, when the driving motor rotates, the rotation of the threaded sleeve is converted into the linear motion of the core rod through the first speed reduction of the speed reduction mechanism and the threaded sleeve and the core rod, so that the core rod drives the piston to reciprocate in the piston cylinder; the mechanism needs a driving motor to rotate for more turns, the core bar can reach a specified stroke, the transmission ratio of the mechanism is higher compared with that of the conventional coagulant dispenser, and therefore, compared with the conventional coagulant dispenser, the coagulant dispenser disclosed by the invention can enable the coagulant dispenser to have higher accuracy on the coagulant injection amount, and the influence on the dispensing accuracy of the coagulant dispenser disclosed by the invention is smaller even if parts are worn after long-time use; and the coagulant dispenser in this disclosure is also simpler in structure while the accuracy is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present disclosure and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings may be obtained from the drawings without inventive effort.

Fig. 1 is a schematic diagram of the structure of a coagulant dispenser of the present disclosure.

Fig. 2 is a schematic diagram of a framework structure of an apparatus for accurately adding a coagulant in the present disclosure.

The reference numbers in the figures illustrate:

1-driving a motor; 2-a drive gear; 3-a driven gear; 4-a threaded sleeve; 5-core bar; 6-a piston; 7-a piston cylinder; 8-a tee joint; 9-water inlet one-way valve; 10-water outlet one-way valve.

Detailed Description

The technical solution in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. It should be understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the disclosure without inventive step, are within the scope of the disclosure.

Referring to fig. 1 and 2, the device for accurately adding the coagulant comprises a water inlet pump, a mixing reaction tank, a sedimentation tank and a coagulant dispenser; the water inlet pump is connected with the mixed reaction tank through a water inlet pipe, and the sedimentation tank is connected with a water outlet of the mixed reaction tank; a flocculation velvet image acquisition sensor is arranged in the mixed reaction tank; the coagulant dispenser comprises a shell, a driving motor 1, a threaded sleeve 4, a core bar 5, a piston cylinder 7 and a tee joint 8, wherein the threaded sleeve 4 is rotatably arranged on the shell, and a speed reducing mechanism is arranged between the driving motor 1 and the threaded sleeve 4; the threaded sleeve 4 is sleeved outside the core rod 5 through threads, one end of the core rod 5 is provided with a piston 6, the other end of the core rod is an anti-rotation part, the piston 6 is arranged in a piston cylinder 7, a core shaft guide groove is formed in the shell, and the anti-rotation part is arranged in the core shaft guide groove in a sliding mode; the piston cylinder 7 is hermetically connected with one connector of the tee joint 8, and the other two connectors of the tee joint 8 are respectively hermetically connected with a water inlet one-way valve 9 communicated from outside to inside and a water outlet one-way valve 10 communicated from inside to outside. The piston 6 can be a plurality of existing pistons 6 or a diaphragm type.

The speed reducing mechanism can adopt a speed reducing mechanism such as a gear mechanism and the like; as one of the specific modes: the reduction gears include the driving gear 2 that links to each other with 1 output shaft of driving motor and set up driven gear 3 on the threaded sleeve 4 lateral wall, and driven gear 3's reference circle diameter is greater than the reference circle diameter of driving gear 2.

On the basis of the scheme, the cross section of the rotation preventing part of the core rod 5 can be in a non-circular structure such as a pentagon structure, a hexagon structure and the like, and the mandrel guide groove is matched with the rotation preventing part. As one of the specific modes: the anti-rotation part of the core rod 5 is a square part, and the mandrel guide groove is a square groove. The rotation prevention portion adopts a square portion, and the mandrel guide groove is a square groove, so that the threaded sleeve 4 can be prevented from driving the mandrel to rotate when rotating.

In order to accurately measure the amount of the flocculated pile bodies, on the basis of the scheme, a plurality of flocculated pile body image acquisition sensors are arranged and distributed at different positions of the mixing reaction tank; the specific arrangement of the amount of the flocculent flocks can be accurately measured, and the dependent arrangement can be carried out according to specific environments such as the shape of the mixed reaction cell. In addition, the flocculation flock image acquisition sensor belongs to the existing sensor, and the sensor is not improved, so that the detailed description is omitted.

Wherein, the driving motor 1 is a servo motor.

On the basis of the scheme, the device for accurately adding the coagulant further comprises a computer control end, and the flocculation flock image acquisition sensor and the driving motor 1 are connected with the computer control end. The output quantity of the driving motor 1 is converted by a control program of a computer control end according to data acquired by the flocculation pile body image acquisition sensor at present, the method belongs to the conventional technology, the control program of the computer control end is not improved, and the method is not repeated; the present disclosure is only to realize a specific output of the drive motor 1 by using this existing control program.

The disclosure is further illustrated below in conjunction with the working principle:

referring to fig. 1 and 2, water enters the mixing reaction tank through a water inlet pump, and the content of the flocculated pile is detected by the flocculated pile image acquisition sensor, so that the rotation angle of the driving motor 1 is controlled by the computer control end; the rotation of the driving motor 1 firstly drives the threaded sleeve 4 to rotate through the speed reducing mechanism, then the threaded sleeve 4 converts the rotation into the linear motion of the core bar 5, the core bar 5 drives the piston 6 to move, so that the coagulant enters the tee joint 8 and the piston cylinder 7 through the water inlet check valve 9 until the coagulant with the content corresponding to the content of the flocculent velvet body is sucked, and then the driving motor 1 reversely rotates at the same angle until the coagulant with the sucked amount is discharged into the mixing reaction tank through the water outlet check valve 10.

The present disclosure is not limited to the above optional embodiments, and on the premise of no conflict, the schemes can be combined arbitrarily; any other products in various forms can be obtained in the light of the present disclosure, but any changes in shape or structure thereof fall within the scope of the present disclosure, which is defined by the claims.

Claims

1. The device for accurately adding the coagulant is characterized in that: comprises a water inlet pump, a mixing reaction tank, a sedimentation tank and a coagulant dispenser; the water inlet pump is connected with the mixed reaction tank through a water inlet pipe, and the sedimentation tank is connected with a water outlet of the mixed reaction tank; a flocculation velvet image acquisition sensor is arranged in the mixed reaction tank; the coagulant dispenser comprises a shell, a driving motor, a threaded sleeve, a core rod, a piston cylinder and a tee joint, wherein the threaded sleeve is rotatably arranged on the shell, and a speed reducing mechanism is arranged between the driving motor and the threaded sleeve; the threaded sleeve is sleeved outside the core rod through threads, one end of the core rod is provided with a piston, the other end of the core rod is an anti-rotation part, the piston is arranged in the piston cylinder, the shell is provided with a mandrel guide groove, and the anti-rotation part is arranged in the mandrel guide groove in a sliding manner; the piston cylinder is connected with one connector of the tee joint in a sealing way, and the other two connectors of the tee joint are respectively connected with a water inlet one-way valve which is conducted from outside to inside and a water outlet one-way valve which is conducted from inside to outside in a sealing way.

2. The apparatus for accurately adding coagulant according to claim 1, characterized in that: the speed reducing mechanism comprises a driving gear connected with an output shaft of the driving motor and a driven gear arranged on the outer side wall of the threaded sleeve, and the diameter of the reference circle of the driven gear is larger than that of the driving gear.

3. The apparatus for accurately adding coagulant according to claim 1, characterized in that: the anti-rotation part of the core rod is a square part, and the mandrel guide groove is a square groove.

4. The apparatus for accurately adding coagulant according to claim 1, characterized in that: the flocculation flock image acquisition sensors are provided with a plurality of flocculation flock image acquisition sensors which are scattered at different positions of the mixing reaction tank.

5. The apparatus for accurately adding coagulant according to claim 1, characterized in that: the driving motor is a servo motor.

6. The apparatus for accurately adding coagulant according to claim 1 or 5, wherein: the flocculation velvet image acquisition sensor and the driving motor are connected with the computer control end.