Anti-siphon device for circulating water dosing system

Abstract

The utility model relates to an anti-siphon device for a circulating water dosing system, which comprises a box body, a water inlet pipe and a water outlet pipe are respectively arranged on the outer walls of two sides of the box body, the horizontal position of the water inlet pipe is higher than that of the water outlet pipe, an anti-overflow component and a mixing component are arranged in the box body, and an anti-siphon component is arranged on the water inlet pipe. The anti-siphon assembly comprises a mounting ring connected to the water inlet pipe and an anti-siphon pipe arranged at the top of the water inlet pipe, the anti-siphon pipe is communicated into the box body, sealing pieces are hinged to the two sides of the inner wall of the mounting ring and are of semicircular structures, springs are connected to the sides, away from the anti-siphon pipe, of the sealing pieces, and the other ends of the springs are connected with the inner wall of the mounting ring. Two limiting blocks are arranged on the side, where the spring is located, of the inner wall of the mounting ring, and the limiting blocks are attached to the sealing piece. The anti-siphon backflow device can play a role in preventing siphon backflow in the water circulation treatment process, and avoids medicine dilution caused by the fact that water added with medicine is mixed with water not added with medicine.

Description

Technical Field

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

[0002] There are two main types of circulating water: industrial and household. The main purpose of both is to save water. Circulating water means that the used wastewater is recycled after a series of treatments to achieve the purpose of saving water. Circulating water reduces the waste of water resources to a certain extent. In the process of circulating water treatment, some drugs need to be added to purify the wastewater. At this time, the circulating water will be input into the storage container through a pipeline and then the drugs will be added for unified treatment.

[0003] However, the existing circulating water dosing device is not equipped with an anti-siphon component. Siphoning may occur during the circulating water transportation process, causing the circulating water with added drugs in the storage container to be quickly emptied, resulting in the mixing of circulating water mixed with drugs and circulating water without drugs, causing drug dilution and affecting the purification of the circulating water. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provides a siphon prevention device for a circulating water dosing system.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A device for preventing siphonage in a circulating water dosing system comprises a box body, wherein an inlet pipe and an outlet pipe are respectively arranged on the outer walls on both sides of the box body, the horizontal position of the inlet pipe is higher than the horizontal position of the outlet pipe, an anti-overflow component and a mixing component are arranged inside the box body, the inlet pipe is arranged with an anti-siphon component, the anti-siphon component comprises a mounting ring connected to the inlet pipe and an anti-siphon pipe arranged on the top of the inlet pipe, the anti-siphon pipe leads into the box body, sealing sheets are hinged on both sides of the inner wall of the mounting ring, the sealing sheet is a semicircular structure, a spring is connected to the side of the sealing sheet away from the anti-siphon pipe, the other end of the spring is connected to the inner wall of the mounting ring, two limit blocks are arranged on the inner wall of the mounting ring at the side where the spring is located, and the limit blocks are fitted with the sealing sheet.

[0007] A sealing gasket is arranged on the periphery of the sealing sheet, the sealing gasket is matched with the sealing sheet, and the thickness of the sealing gasket is smaller than the thickness of the sealing sheet.

[0008] A dosing pipe is arranged on the top of the box body, and a pipe cover is installed on the top of the dosing pipe.

[0009] The overflow prevention component includes an overflow prevention tube arranged at one end of the top outer wall of the box body, an overflow prevention rod is slidably installed on the inner wall of the overflow prevention tube, a pressure sensor is installed on the top of the overflow prevention tube, an alarm is installed on the top outer wall of the box body, the pressure sensor is connected to a PLC controller through a wire, and the PLC controller is connected to the alarm through a wire.

[0010] The top of the anti-overflow rod is provided with an anti-dropping trigger ball inside the anti-overflow pipe, and the bottom of the anti-overflow rod is provided with a floating ball inside the box.

[0011] The mixing assembly comprises a stirring shaft rotatably mounted on the inner wall of the box body, a stirring blade is arranged on the stirring shaft, and the stirring shaft is connected to a servo motor which is mounted on the top of the box body.

[0012] The beneficial effect of the utility model is that the utility model can play a role in preventing siphon backflow in the process of water circulation treatment, thereby preventing the water with added medicine from mixing with the water without added medicine to cause the dilution of the medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the anti-siphon component in the utility model;

[0015] Figure 3 It is a schematic diagram of the initial state of the overflow prevention component in the utility model;

[0016] Figure 4 It is a schematic diagram of the overflow prevention component of the utility model when it is at its maximum limit;

[0017] In the figure: 1, box body; 2, water inlet pipe; 3, water outlet pipe; 4, mounting ring; 5, anti-siphon pipe; 6, sealing sheet; 7, spring; 8, sealing pad; 9, anti-overflow pipe; 10, anti-overflow rod; 11, pressure sensor; 12, alarm; 13, dosing pipe; 14, pipe cover; 15, observation window; 16, stirring shaft; 17, servo motor; 18, limit block; 19, anti-drop trigger ball; 20, floating ball; 21, stirring blade;

[0018] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0020] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] A device for preventing siphonage in a circulating water dosing system comprises a housing 1, a water inlet pipe 2, a water outlet pipe 3, a mounting ring 4, an anti-siphon pipe 5, a sealing sheet 6, a spring 7, a sealing pad 8, an anti-overflow pipe 9, an anti-overflow rod 10, a pressure sensor 11, an alarm 12, a dosing pipe 13, a pipe cover 14, an observation window 15, a stirring shaft 16, a servo motor 17, a limit block 18, an anti-drop trigger ball 19, a floating ball 20 and a stirring blade 21.

[0024] An inlet pipe 2 and an outlet pipe 3 are respectively arranged on the outer walls of both sides of the box body 1. The horizontal position of the inlet pipe 2 is higher than that of the outlet pipe 3. An anti-overflow component and a mixing component are arranged inside the box body 1. The inlet pipe 2 is provided with an anti-siphon component. The anti-siphon component includes a mounting ring 4 connected to the inlet pipe 2 and an anti-siphon pipe 5 arranged on the top of the inlet pipe 2. The anti-siphon pipe 5 passes into the interior of the box body 1. Sealing sheets 6 are hinged on both sides of the inner wall of the mounting ring 4. The sealing sheet 6 is a semicircular structure. A spring 7 is connected to the side of the sealing sheet 6 away from the anti-siphon pipe 5. The other end of the spring 7 is connected to the inner wall of the mounting ring 4. Two limit blocks 18 are arranged on the inner wall of the mounting ring 4 on the side where the spring 7 is located. The limit blocks 18 are fitted with the sealing sheet 6.

[0025] A sealing gasket 8 is arranged on the periphery of the sealing sheet 6 . The sealing gasket 8 is matched with the sealing sheet 6 , and the thickness of the sealing gasket 8 is smaller than the thickness of the sealing sheet 6 .

[0026] A dosing pipe 13 is arranged on the top of the box body 1 , and a pipe cover 14 is installed on the top of the dosing pipe 13 .

[0027] An observation window 15 is provided on the front of the box body 1 .

[0028] The water inlet pipe 2 injects water into the box body 1, and the water outlet pipe 3 discharges the water in the box body 1, thereby forming a water circulation. During the water circulation process, the sealing piece 6 opens along the direction of the water flow in the water inlet pipe 2. When the water flow impacts, the spring 7 is stretched, so that the sealing piece 6 is separated, and the water flow can pass through. If siphoning occurs in the water inlet pipe 2 and causes the liquid in the box body 1 to reflux, under the action of the limit block 18, the sealing piece 6 cannot be opened in the opposite direction, thereby playing a role in preventing siphon reflux, and the refluxed water flows back to the box body 1 through the anti-siphon pipe 5. Compared with the traditional device, the utility model can prevent liquid reflux and avoid mixing of water with added drugs and water without added drugs to cause drug dilution.

[0029] The overflow prevention component includes an overflow prevention tube 9 arranged at one end of the top outer wall of the box body 1, an overflow prevention rod 10 is slidably installed on the inner wall of the overflow prevention tube 9, the overflow prevention rod 10 is made of hollow plastic material, a pressure sensor 11 is installed on the top of the overflow prevention tube 9, an alarm 12 is installed on the top outer wall of the box body 1, the pressure sensor 11 is connected to the PLC controller through a wire, and the PLC controller is connected to the alarm 12 through a wire.

[0030] The PLC controller may be a conventional product, for example, a Siemens S7-200 product.

[0031] As the water level inside the box 1 rises, the anti-overflow rod 10 gradually rises. When the top of the anti-overflow rod 10 touches the pressure sensor 11, the alarm 12 sounds an alarm to remind the staff to drain the water in time to prevent excessive pressure caused by excessive liquid in the box 1, which may cause the liquid to overflow.

[0032] An anti-drop trigger ball 19 is provided at the top of the anti-overflow rod 10 inside the anti-overflow tube 9 , and a floating ball 20 is provided at the bottom of the anti-overflow rod 10 inside the box body 1 .

[0033] The mixing assembly includes a stirring shaft 16 rotatably mounted on the inner wall of the box 1, a stirring blade 21 is provided on the stirring shaft 16, and a servo motor 17 is connected to the stirring shaft 16, and the servo motor 17 is mounted on the top of the box 1. After the drug is added, the servo motor 17 drives the stirring shaft 16 and the stirring blade 21 to stir the liquid, so that the drug can be quickly mixed with water, accelerate the reaction, and improve the water treatment efficiency.

[0034] The working principle of the utility model is as follows:

[0035] The water inlet pipe 2 injects water into the box body 1, and the water outlet pipe 3 guides the water in the box body 1, thereby forming a water cycle. During the water circulation process, the sealing piece 6 opens along the direction of the water flow of the water inlet pipe 2. When the water flow impacts, the spring 7 is stretched, so that the sealing piece 6 is separated, and the water flow can pass through. If the water inlet pipe 2 is siphoned and causes the liquid in the box body 1 to reflux, the sealing piece 6 cannot be opened in the opposite direction under the action of the limit block 18, thereby playing a role in preventing siphon reflux, and the refluxed water flows back to the box body 1 through the anti-siphon pipe 5. Compared with the traditional device, it can prevent the liquid from reflux and avoid the mixing of water with added drugs and water without added drugs to cause drug dilution;

[0036] As the water level inside the box 1 rises, the anti-overflow rod 10 gradually rises. When the top of the anti-overflow rod 10 touches the pressure sensor 11, the alarm 12 sounds an alarm to remind the staff to drain the water in time to prevent the excessive pressure caused by excessive liquid in the box 1, which may cause the liquid to overflow. The pipe cover 14 closes the dosing pipe 13 to prevent overflow. The dosing pipe 13 facilitates the addition of drugs into the box 1. After the drugs are added, the servo motor 17 drives the stirring shaft 16 and the stirring blades 21 to stir the liquid, so that the drugs can be quickly mixed with water, accelerating the reaction and improving the water treatment efficiency.

[0037] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A device for preventing siphonage in a circulating water dosing system, comprising a box (1), wherein the outer walls on both sides of the box (1) are respectively provided with an inlet pipe (2) and an outlet pipe (3), wherein the horizontal position of the inlet pipe (2) is higher than the horizontal position of the outlet pipe (3), and wherein: An anti-overflow component and a mixing component are arranged inside the box body (1); an anti-siphon component is arranged on the water inlet pipe (2); the anti-siphon component comprises a mounting ring (4) connected to the water inlet pipe (2) and an anti-siphon pipe (5) arranged on the top of the water inlet pipe (2); the anti-siphon pipe (5) leads into the box body (1); sealing sheets (6) are hingedly connected on both sides of the inner wall of the mounting ring (4); the sealing sheet (6) is a semicircular structure; a spring (7) is connected to the side of the sealing sheet (6) away from the anti-siphon pipe (5); the other end of the spring (7) is connected to the inner wall of the mounting ring (4); two limit blocks (18) are arranged on the inner wall of the mounting ring (4) on the side where the spring (7) is located; the limit blocks (18) and the sealing sheet (6) are arranged in close contact with each other.

2. The device for preventing siphonage of a circulating water dosing system according to claim 1, characterized in that: A sealing gasket (8) is arranged on the periphery of the sealing sheet (6); the sealing gasket (8) is adapted to the sealing sheet (6); and the thickness of the sealing gasket (8) is smaller than the thickness of the sealing sheet (6).

3. The device for preventing siphonage of a circulating water dosing system according to claim 1, characterized in that: A drug adding pipe (13) is arranged on the top of the box body (1), and a pipe cover (14) is installed on the top of the drug adding pipe (13).

4. The device for preventing siphonage of a circulating water dosing system according to claim 1, characterized in that: An observation window (15) is provided on the front side of the box body (1).

5. The device for preventing siphonage of a circulating water dosing system according to claim 1, characterized in that: The overflow prevention component comprises an overflow prevention pipe (9) arranged at one end of the top outer wall of the box body (1), an overflow prevention rod (10) is slidably installed on the inner wall of the overflow prevention pipe (9), a pressure sensor (11) is installed at the top of the overflow prevention pipe (9), an alarm (12) is installed on the top outer wall of the box body (1), the pressure sensor (11) is connected to a PLC controller via a wire, and the PLC controller is connected to the alarm (12) via a wire.

6. The device for preventing siphonage of a circulating water dosing system according to claim 5, characterized in that: The top of the overflow prevention rod (10) is provided with an anti-drop trigger ball (19) inside the overflow prevention tube (9), and the bottom of the overflow prevention rod (10) is provided with a floating ball (20) inside the box body (1).

7. The device for preventing siphonage of a circulating water dosing system according to claim 1, characterized in that: The mixing assembly comprises a stirring shaft (16) rotatably mounted on the inner wall of a box body (1), a stirring blade (21) is provided on the stirring shaft (16), and the stirring shaft (16) is connected to a servo motor (17), which is mounted on the top of the box body (1).

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