A cistern dosing device

Abstract

The utility model provides a kind of water pool dosing device, including the medicine inlet pipe of the pool wall of vertical and close to water pool setting, the upper port of the medicine inlet pipe is import, connecting medicine jar, simultaneously, air compressor is connected with the upper port of this medicine inlet pipe, the lower port of the medicine inlet pipe is export, and it is below that the liquid surface of water pool is stretched, and the lower port is connected with dosing pipe by pipe fitting, the pipe fitting is provided with check valve, and the dosing pipe wall is provided with several medicine outlet holes. In the utility model, the whole device will not appear freezing problem, realizes according to need to dosing in water pool at any time, improves dosing operation convenience in water pool.

Description

Technical Field

[0001] This utility model belongs to the field of water purification, and in particular relates to a water tank dosing device. Background Technology

[0002] In urban water supply systems, chemicals are added to water tanks containing urban water as needed to ensure the cleanliness and hygiene of the water supply. Common water tank dosing devices include an inlet pipe, which is vertically installed close to the tank wall. The upper end of the inlet pipe connects to a chemical tank containing prepared chemicals, and the lower end of the inlet pipe extends below the water surface in the tank. When chemicals need to be added to the water source in the tank, the chemicals from the tank are discharged into the tank through the inlet pipe to disinfect the water.

[0003] However, in cold environments, such as winters in the north, when using this conventional dosing device, it was found that even after the air compressor was used to drain the liquid from the inlet pipe after dosing, according to the principle of communicating vessels, the water in the pool would flow back into the inlet pipe. The water level in the inlet pipe would be the same as the water level in the pool. Due to the cold environment, the water in the inlet pipe would not flow, causing the water in the inlet pipe to freeze at the water level and block the inlet pipe. This would prevent the subsequent dosing of the liquid into the pool and would require manual clearing, making dosing inconvenient. Utility Model Content

[0004] In view of this, the present invention aims to provide a water tank dosing device to prevent water freezing in the inlet pipe and facilitate the dosing of chemicals into the water tank.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A water tank dosing device includes a vertically mounted dosing pipe that is close to the tank wall. The upper end of the dosing pipe is an inlet connected to a medicine tank, and an air compressor is connected to the upper end of the dosing pipe. The lower end of the dosing pipe is an outlet that extends below the water surface in the tank. The lower end is connected to a dosing pipe through a fitting. The fitting is equipped with a check valve, and the dosing pipe has several outlet holes on its wall.

[0007] Furthermore, the lower end of the drug inlet tube is provided with a tee fitting, and the fitting has two parts connected to the other two interfaces of the tee fitting. The drug delivery tube has two parts, each connected to a fitting.

[0008] Furthermore, the lower end of the inlet pipe extends to a position close to the bottom of the pool, the dosing pipe is vertically set with its lower end being the inlet and flush with the lower end of the inlet pipe, the upper end of the dosing pipe is closed and its position is set according to the dosing depth of the pool, and the fitting is horizontally set to connect the lower end of the dosing pipe and the lower end of the inlet pipe.

[0009] Furthermore, the pipe fittings and dosing pipes are all tightly attached to the wall of the pool.

[0010] Furthermore, the inlet pipe and the dosing pipe are fixed to the pool wall by pipe fixing brackets, respectively.

[0011] Compared with existing technologies, the water tank dosing device described in this utility model has the following advantages:

[0012] (1) In this utility model, the lower end of the inlet pipe extends to the bottom of the pool and is connected to the dosing pipe. A check valve is installed at the lower end. After the liquid in the inlet pipe is drained, the check valve prevents the water in the pool from flowing back into the inlet pipe, keeping the inlet pipe dry. Even in cold environments, the water in the inlet pipe will not freeze and block the inlet pipe, keeping the inlet pipe unobstructed. Since the dosing pipe is arranged from the bottom of the pool upwards and its top is below the liquid surface of the pool, the dosing pipe will not freeze. Therefore, the entire device will not freeze, allowing the dosing to be added to the pool as needed, thus improving the convenience of adding drugs to the pool. Attached Figure Description

[0013] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0014] Figure 1 This is a front view of a water tank dosing device according to an embodiment of the present utility model;

[0015] Figure 2 This is a left view of a water tank dosing device according to an embodiment of the present utility model.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1-Water tank; 2-Inlet pipe; 3-Connecting pipe; 4-Dosing pipe; 5-Tee fitting; 6-Check valve; 7-Fittings. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] like Figure 1 , Figure 2As shown, a water tank dosing device includes a vertically mounted dosing pipe 2 that is closely attached to the wall of a water tank 1. The dosing pipe 2 is fixed to the water tank wall via a pipe fixing bracket. The upper port of the dosing pipe 2 is the inlet, and the lower port is the outlet. The upper port is connected to the medicine tank of a base station via a connecting pipe 3. At the same time, an air compressor is also connected in parallel to the connecting pipe 3. That is, the air compressor and the medicine tank are connected in parallel and both are connected to the inlet of the dosing pipe 2. The medicine tank contains liquid medicine, which can be output to the water tank through the dosing pipe 2 to dosing medicine into the water tank 1. After the dosing is completed, the air compressor blows a high-pressure airflow into the dosing pipe 2 to drain the liquid medicine in the dosing pipe 2 completely. The lower end of the inlet pipe 2 is the outlet, extending below the water surface in the pool and close to the bottom. A three-way connector 5 is installed at this lower end. The other two ports of the three-way connector 5 are connected to a fitting 7, and each fitting 7 contains a check valve 6, ensuring that the solution in the inlet pipe 2 can only flow into the pool in one direction, preventing backflow of water from the pool into the inlet pipe 2. The distal ends of the two fittings 7, i.e., the ends furthest from the three-way connector 5, are outlets. Each outlet of the two fittings 7 is vertically connected to a dosing pipe 4. The upper end of the dosing pipe 4 is closed, and its position corresponds to the dosing depth in the pool. The dosing depth in the pool is set according to the required water depth; since the dosing depth is less than the water depth, the dosing position is located below the water surface.

[0023] In this invention, the tee connector 5 is a T-type tee connector. Therefore, after installation, the two pipe fittings 7 are horizontally and symmetrically arranged on both sides of the inlet pipe 2. Both pipe fittings 7 and the two dosing pipes 4 are tightly attached to the wall of the water tank 1 and are fixed to the water tank wall by pipe fixing brackets. The lower ends of the two dosing pipes 4 are inlets and flush with the lower ends of the inlet pipe 2. The pipe fittings 7 connect the lower ends of the dosing pipes 4 and the lower ends of the inlet pipe 2.

[0024] With this invention, the lower end of the inlet pipe 2 extends to the bottom of the water tank, and the dosing pipe faces upwards, corresponding to the dosing depth of the water tank. The liquid medicine enters the fitting 7 downwards through the inlet pipe 2, then flows upwards into the dosing pipe 4, and is discharged through the outlet hole provided in the wall of the dosing pipe 4, thus realizing the dosing into the water tank. After the dosing is completed, the air compressor drains the liquid medicine from the inlet pipe 2 completely. The check valve in the fitting 7 prevents water from flowing into the inlet pipe 2, ensuring that the inlet pipe 2 remains empty and water-free at all times. This prevents the problem of water freezing and clogging the inlet pipe 2. At the same time, since the dosing pipe 4 is located below the liquid surface, the water in the water tank is in a flowing state and cannot freeze at this location. Therefore, the entire device will not be blocked by water freezing, and the entire device can remain unobstructed, facilitating the dosing operation into the water tank.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water tank dosing device, characterized in that: The device includes a vertical inlet pipe (2) that is close to the wall of the pool (1). The upper end of the inlet pipe (2) is the inlet and is connected to the medicine tank. An air compressor is connected to the upper end of the inlet pipe (2). The lower end of the inlet pipe (2) is the outlet and extends to the bottom of the liquid surface in the pool. The lower end is connected to the dosing pipe (4) through a fitting (7). A check valve (6) is installed inside the fitting (7). Several outlet holes are provided on the wall of the dosing pipe (4).

2. The water tank dosing device according to claim 1, characterized in that: The lower end of the drug inlet tube (2) is provided with a three-way pipe connector (5), and the pipe fitting (7) is provided in two and connected to the other two interfaces of the three-way pipe connector (5). The drug delivery tube (4) is provided in two, each connected to a pipe fitting (7).

3. The water tank dosing device according to claim 1, characterized in that: The lower end of the inlet pipe (2) extends to the bottom of the pool (1) near the water tank. The dosing pipe (4) is vertically set with its lower end being the inlet and flush with the lower end of the inlet pipe (2). The upper end of the dosing pipe (4) is closed and its position is set according to the dosing depth of the pool. The fitting (7) is horizontally set to connect the lower end of the dosing pipe (4) and the lower end of the inlet pipe (2).

4. The water tank dosing device according to claim 1, characterized in that: The pipe fitting (7) and the dosing pipe (4) are both in close contact with the wall of the pool (1).

5. A water tank dosing device according to claim 1, characterized in that: The inlet pipe (2) and the dosing pipe (4) are fixed to the wall of the pool (1) by pipe fixing brackets, respectively.

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