Doser device of dosing system

Abstract

The utility model belongs to the technical field of water treatment, and particularly relates to a chemical feeder device of a chemical feeding system, which comprises a chemical feeding shell, a water inlet, a water outlet and a deflation valve, the water inlet, the water outlet and the deflation valve are arranged on the surface of the chemical feeding shell, a first connector is mounted on the lower surface of the chemical feeding shell, an internal thread is arranged inside the first connector, and a second connector is mounted on the lower surface of the chemical feeding shell. An additive inlet pipe is arranged on the lower surface of the dosing shell, a second connector fixedly sleeves the outer surface of the upper end of the additive inlet pipe, an external thread is arranged on the outer surface of the second connector, and the internal thread is in threaded connection with the external thread. According to the doser device of the dosing system, the additive inlet pipe is made of a polyamide fiber material, so that pipeline corrosion and water leakage caused by contact between high-concentration liquid medicine and the pipe wall due to direct contact between the agent of the dosing system and the pipe wall in the pipeline conveying process are prevented, and pipeline corrosion and maintenance and replacement frequency can be conveniently reduced in the use process; the number of spare parts is reduced, and the operation economy and safety reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a dosing device of a dosing system. Background Art

[0002] In order to ensure the water quality of circulating cooling water, reduce equipment corrosion and scaling of the circulating cooling water system, maintain the stability and continuity of the circulating cooling water system operation, and improve the heat exchange rate, while discharging part of the wastewater, it is also necessary to appropriately add fungicides, corrosion inhibitors, scale inhibitors, acids and alkalis and other chemicals to the circulating cooling water. Therefore, sewage discharge devices and dosing devices are also one of the indispensable devices of the circulating cooling water system.

[0003] The dosing system is mainly used for industrial water recycling and decomposition of water ions. The chemical mainly decomposes the electrolytic ions in the water to remove scale from the water. Since the chemical decomposes the metal ions in the water, it has a corrosive effect. Therefore, it is easy for high-concentration chemicals to come into contact with the pipe wall, causing pipeline corrosion and leakage, affecting the normal use of the dosing system, resulting in production downtime and losses. Utility Model Content

[0004] Based on the above-mentioned existing technical problems, the utility model proposes a dosing device for a dosing system.

[0005] The utility model proposes a dosing system dosing device, comprising a dosing shell and a water inlet, a water outlet and an air release valve arranged on the surface of the dosing shell. A first connector is installed on the lower surface of the dosing shell, and an internal thread is provided inside the first connector. An additive inlet pipe is provided on the lower surface of the dosing shell, and a second connector is fixedly sleeved on the outer surface of the upper end of the additive inlet pipe. The outer surface of the second connector is provided with an external thread, and the internal thread and the external thread are threadedly connected.

[0006] A plunger motor is installed on the inner wall of the dosing shell, one end of the plunger of the plunger motor is fixedly connected to a conical piston, and a feeding mechanism is provided on the surface of the conical piston. The feeding mechanism includes feed ports distributed in an annular array and opened on the surface of the conical piston.

[0007] Preferably, the outer surface of the external thread is threadedly connected with a hexagonal nut, and a sealing gasket is provided on the surface of the hexagonal nut on one side close to the first connector.

[0008] The above technical solution facilitates sealing the connection between the first connector and the second connector to prevent the drug solution from overflowing.

[0009] Preferably, a liquid inlet is provided on the lower surface of the dosing housing, and the liquid inlet passes through the first connector and is connected to the additive inlet pipe.

[0010] Through the above technical solution, the drug liquid enters the drug-adding shell from the liquid inlet through the additive inlet pipe, so that the drug liquid and the liquid are mixed together.

[0011] Preferably, a sealing ball is fixedly sleeved on the surface of the plunger of the plunger motor, and the sealing ball is slidably connected to the inner wall of the liquid inlet.

[0012] Through the above technical solution, the expansion and contraction of the plunger of the plunger motor drives the conical piston and the sealing ball connected thereto to move up and down.

[0013] Preferably, the sealing ball, the tapered piston and the additive inlet pipe are made of polyamide fiber.

[0014] Through the above technical solutions, polyamide fiber, commonly known as nylon, has good resistance to most chemicals and can effectively resist corrosion.

[0015] Preferably, the feeding mechanism also includes a servo motor fixedly mounted on the inner wall of the conical piston, a turntable fixedly mounted on one end of the output shaft of the servo motor, the surface of the turntable is mounted on the inner wall of the conical piston through a bearing, and sealing plates are installed on the surface of the turntable in an annular array, and the surface of the sealing plate is slidably connected to the surface of the conical piston.

[0016] Through the above technical solution, the rotation of the servo motor output shaft drives the turntable connected to it to rotate, and the rotation of the turntable drives the sealing plate connected to it to rotate along the outer surface of the conical piston, thereby facilitating the opening or closing of the feed port through the sealing plate.

[0017] The beneficial effects of the present invention are:

[0018] 1. By using polyamide fiber material to make the additive inlet pipe, it prevents the dosing system reagent from directly contacting the pipe wall during pipeline transportation, causing high-concentration liquid to contact the pipe wall and cause pipeline corrosion and leakage. It is convenient to reduce pipeline corrosion and maintenance and replacement frequency during use, reduce the number of spare parts used, and improve operation economy and safety and reliability.

[0019] 2. By setting up a feeding mechanism, liquid is prevented from entering the additive inlet pipe through the liquid inlet, so that the liquid is placed in the liquid inlet by the conical trough body and the sealing ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a dosing device for a dosing system proposed in the present invention;

[0021] Figure 2 This is a three-dimensional diagram of the structure of a plunger motor of a dosing device of a dosing system proposed by the present invention;

[0022] Figure 3 This is a three-dimensional diagram of the additive inlet pipe structure of a dosing device of a dosing system proposed by the present invention;

[0023] Figure 4 This is a three-dimensional diagram of the sealing ball structure of a dosing device of a dosing system proposed by the utility model;

[0024] Figure 5 This is a three-dimensional diagram of the tapered piston structure of a dosing device of a dosing system proposed by the utility model;

[0025] Figure 6 This is a three-dimensional diagram of the servo motor structure of a dosing device of a dosing system proposed by the present invention.

[0026] In the figure: 1. Dosing shell; 11. Water inlet; 12. Water outlet; 13. Air release valve; 14. Liquid inlet; 2. First connector; 3. Additive inlet pipe; 4. Second connector; 5. Plunger motor; 6. Conical piston; 7. Feed port; 71. Sealing ball; 72. Servo motor; 73. Turntable; 74. Sealing plate; 8. Hexagonal nut; 9. Sealing gasket. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figures 1-6 A dosing system dosing device includes a dosing shell 1 and a water inlet 11, a water outlet 12 and an air release valve 13 arranged on the surface of the dosing shell 1. A first connector 2 is installed on the lower surface of the dosing shell 1, and an internal thread is provided inside the first connector 2. An additive inlet pipe 3 is provided on the lower surface of the dosing shell 1. A second connector 4 is fixedly sleeved on the outer surface of the upper end of the additive inlet pipe 3. The outer surface of the second connector 4 is provided with an external thread, and the internal thread and the external thread are threadedly connected.

[0029] In order to make the connection between the internal thread and the external thread tighter, a hexagonal nut 8 is threadedly connected to the outer surface of the external thread, and a sealing gasket 9 is provided on the side surface of the hexagonal nut 8 close to the first connector 2 to prevent the drug solution from overflowing.

[0030] In order to facilitate the entry of the drug solution into the dosing shell 1 through the additive inlet pipe 3, a liquid inlet 14 is opened on the lower surface of the dosing shell 1. The liquid inlet 14 passes through the first connector 2 and is connected to the additive inlet pipe 3, so that the drug solution and the liquid are mixed together to achieve a descaling effect.

[0031] A plunger motor 5 is installed on the inner wall of the dosing shell 1, and one end of the plunger of the plunger motor 5 is fixedly connected to a conical piston 6. A feeding mechanism is provided on the surface of the conical piston 6, and the feeding mechanism includes feed ports 7 distributed in an annular array and opened on the surface of the conical piston 6.

[0032] In order to seal the liquid inlet 14, a sealing ball 71 is fixedly sleeved on the surface of the plunger of the plunger motor 5. The sealing ball 71 is slidably connected to the inner wall of the liquid inlet 14. The extension and contraction of the plunger of the plunger motor 5 drives the conical piston 6 and the sealing ball 71 connected thereto to move up and down.

[0033] In order to avoid corrosion of the pipes in contact with the liquid medicine, the sealing ball 71, the tapered piston 6 and the additive inlet pipe 3 are made of polyamide fiber. Polyamide fiber is usually called nylon, which has good resistance to most chemical substances and can effectively resist corrosion.

[0034] By making the additive inlet pipe 3 out of polyamide fiber material, the dosing system prevents the chemicals from directly contacting the pipe wall during pipeline transportation, which may cause high-concentration chemical liquid to contact the pipe wall and cause pipeline corrosion and leakage. This is convenient for reducing pipeline corrosion and maintenance and replacement frequency during use, reducing the number of spare parts used, and improving operational economy and safety and reliability.

[0035] In order to prevent the liquid from entering the additive inlet pipe 3 through the liquid inlet 14, the feeding mechanism also includes a servo motor 72 fixedly mounted on the inner wall of the conical piston 6, and a turntable 73 is fixedly mounted on one end of the output shaft of the servo motor 72. The surface of the turntable 73 is mounted on the inner wall of the conical piston 6 through a bearing. The surface of the turntable 73 is distributed in an annular array and is installed with a sealing plate 74. The surface of the sealing plate 74 is slidingly connected to the surface of the conical piston 6. The rotation of the output shaft of the servo motor 72 drives the turntable 73 connected thereto to rotate, and the rotation of the turntable 73 drives the sealing plate 74 connected thereto to rotate along the outer surface of the conical piston 6, so as to facilitate the opening or closing of the feed port 7 through the sealing plate 74, separate the medicine liquid and the liquid through the conical piston 6, and facilitate the pressure difference under the action of the plunger motor 5 to allow the medicine liquid to enter the dosing shell 1 through the feed port 7.

[0036] By providing the feeding mechanism, the liquid is prevented from entering the additive inlet pipe 3 through the liquid inlet 14 , so that the liquid is placed in the liquid inlet 14 by the conical trough body and the sealing ball 71 .

[0037] Working principle: When in use, the first connector 2 and the second connector 4 are connected together through the threaded connection of the internal thread and the external thread, and the connection between the first connector 2 and the second connector 4 is sealed by the hexagonal nut 8 and the sealing gasket 9;

[0038] Then the plunger motor 5 is started, and the contraction of the plunger of the plunger motor 5 drives the sealing ball 71 and the tapered piston 6 to move upward, so that the sealing ball 71 is away from the liquid inlet 14;

[0039] Then start the servo motor 72. The rotation of the output shaft of the servo motor 72 drives the turntable 73 connected thereto to rotate. The rotation of the turntable 73 drives the sealing plate 74 connected thereto to rotate along the outer surface of the tapered piston 6, thereby opening the feed port 7.

[0040] The medicine liquid enters the medicine-dosing shell 1 through the feed port 7, and then the output shaft of the servo motor 72 is started to rotate in the opposite direction, so that the sealing plate 74 closes the feed port 7, and then the plunger motor 5 is started. The extension of the plunger of the plunger motor 5 drives the conical piston 6 and the sealing ball 71 connected thereto to move downward, so that the sealing ball 71 seals the liquid inlet 14 again.

[0041] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dosing system dosing device, comprising a dosing shell (1) and a water inlet (11), a water outlet (12) and an air release valve (13) arranged on the surface of the dosing shell (1), characterized in that: A first connector (2) is installed on the lower surface of the dosing shell (1), and an internal thread is provided inside the first connector (2). An additive inlet pipe (3) is provided on the lower surface of the dosing shell (1), and a second connector (4) is fixedly sleeved on the outer surface of the upper end of the additive inlet pipe (3). An external thread is provided on the outer surface of the second connector (4), and the internal thread and the external thread are threadedly connected; A plunger motor (5) is installed on the inner wall of the dosing housing (1), one end of the plunger of the plunger motor (5) is fixedly connected to a conical piston (6), and a feeding mechanism is provided on the surface of the conical piston (6), and the feeding mechanism includes feeding ports (7) distributed in an annular array and opened on the surface of the conical piston (6); A liquid inlet (14) is provided on the lower surface of the dosing shell (1), and the liquid inlet (14) passes through the first connector (2) and is connected to the additive inlet pipe (3); A sealing ball (71) is fixedly sleeved on the surface of the plunger of the plunger motor (5), and the sealing ball (71) is slidably connected to the inner wall of the liquid inlet (14); The sealing ball (71), the tapered piston (6) and the additive inlet pipe (3) are made of polyamide fiber.

2. A dosing system dosing device according to claim 1, characterized in that: The outer surface of the external thread is threadedly connected with a hexagonal nut (8), and a sealing gasket (9) is provided on a surface of the hexagonal nut (8) close to the first connector (2).

3. The dosing device of the dosing system according to claim 1, characterized in that: The feeding mechanism further comprises a servo motor (72) fixedly mounted on the inner wall of the conical piston (6), a turntable (73) fixedly mounted on one end of the output shaft of the servo motor (72), the surface of the turntable (73) being mounted on the inner wall of the conical piston (6) via a bearing, and sealing plates (74) being mounted on the surface of the turntable (73) in an annular array, the surface of the sealing plate (74) being in sliding connection with the surface of the conical piston (6).

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