Liquid pressure pipeline dosing device

Abstract

The utility model discloses a liquid pressure pipeline dosing device which comprises a bypass mixing pipe and a dosing pipe, the two ends of the bypass mixing pipe are communicated with a liquid pressure pipeline through a first branch pipe and a second branch pipe respectively, and the first branch pipe and the second branch pipe are communicated with the bypass mixing pipe through a first valve and a second valve respectively. The dosing pipe is communicated with the bypass mixing pipe, an exhaust pipe communicated with the atmosphere is arranged on the bypass mixing pipe, a third valve is arranged on the exhaust pipe, and a fourth valve is arranged on the dosing pipe. The liquid pressure pipeline dosing device disclosed by the utility model can be used for fully dissolving, better participating in cooling water circulation and exerting the medicament effect, and is suitable for other similar pressure pipeline systems.

Description

Technical Field

[0001] The utility model relates to the technical field of ship installation, in particular to a chemical dosing device for a liquid pressure pipeline. Background Art

[0002] High and low temperature cooling water needs to add chemicals daily to prevent the cooling water from scaling and inhibit corrosion, ensuring the long-term stable operation of the cooling water system and providing a strong guarantee for the safe navigation of the ship. The conventional design is to add the chemicals into the tank through the filling port of the expansion tank. Since the cooling water in the tank usually does not participate in the circulation, it will cause insufficient dissolution or failure to mix with the system water in time, affecting the effect of the chemicals. Summary of the Utility Model

[0003] To solve the above technical problems, the utility model provides a chemical dosing device for a liquid pressure pipeline, which can be fully dissolved, better participate in the cooling water circulation, play the effect of the chemicals, and is applicable to other similar pressure pipeline systems.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A chemical dosing device for a liquid pressure pipeline includes a bypass mixing pipe and a chemical dosing pipe. The two ends of the bypass mixing pipe are respectively connected to the liquid pressure pipeline through a first branch pipe and a second branch pipe. The first branch pipe and the second branch pipe are respectively connected to the bypass mixing pipe through a first valve member and a second valve member. The chemical dosing pipe is connected to the bypass mixing pipe. An exhaust pipe communicating with the atmosphere is provided on the bypass mixing pipe, and a third valve member is provided on the exhaust pipe. A fourth valve member is provided on the chemical dosing pipe.

[0006] Further, a chemical guiding device is connected to the upper end of the chemical dosing pipe.

[0007] Further, the chemical guiding device is a funnel.

[0008] Further, a drain pipe is provided on the lower side wall of the bypass mixing pipe, and a fifth valve member is provided on the drain pipe.

[0009] Further, the first valve member, the second valve member, the third valve member, the fourth valve member and the fifth valve member are all globe valves.

[0010] Further, the first valve member and the second valve member are respectively connected to the first branch pipe and the second branch pipe and the bypass mixing pipe through flanges; the third valve member is connected to the exhaust pipe through a flange, the fourth valve member is connected to the chemical dosing pipe through a flange, and the fifth valve member is connected to the drain pipe through a flange.

[0011] Further, the chemical dosing device is located directly above the liquid pressure pipe; the exhaust pipe is connected to the upper side wall of the bypass mixing pipe.

[0012] The liquid pressure pipeline dosing device of the utility model can inject the medicament into the pressurized cooling water system through the combined operation of simple valve parts. It can not only add liquid medicament, but also be used for adding powder medicament, and the dissolution is complete. Brief Description of the Drawings

[0013] Figure 1 is the liquid pressure pipeline dosing device of the utility model.

[0014] Wherein, 1 - liquid pressure pipe, 2 - bypass mixing pipe, 3 - dosing pipe, 4 - funnel, 5 - first branch pipe, 6 - second branch pipe, 7 - first valve part, 8 - second valve part, 9 - third valve part, 10 - fourth valve part, 11 - drain pipe, 12 - fifth valve part. Detailed Embodiment

[0015] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0016] As Figure 1 shown, a liquid pressure pipeline dosing device, the dosing device is located directly above the liquid pressure pipe 1, and includes a bypass mixing pipe 2 and a dosing pipe 3. A funnel 4 is connected to the upper end of the dosing pipe 3. Both ends of the bypass mixing pipe 2 are respectively connected to the liquid pressure pipe 1 through a first branch pipe 5 and a second branch pipe 6. The first branch pipe 5 and the second branch pipe 6 are respectively connected to the bypass mixing pipe 2 through a first valve part 7 and a second valve part 8. The dosing pipe 3 is connected to the bypass mixing pipe 2. An exhaust pipe 8 communicating with the atmosphere is provided on the bypass mixing pipe 2. The exhaust pipe 8 is connected to the upper side wall of the bypass mixing pipe 2. A third valve part 9 is provided on the exhaust pipe 8. A fourth valve part 10 is provided on the dosing pipe 3. A drain pipe 11 is provided on the lower side wall of the bypass mixing pipe 2. A fifth valve part 12 is provided on the drain pipe 11.

[0017] The first valve part 7 and the second valve part 8 are respectively connected to the first branch pipe 5 and the second branch pipe 6 and the bypass mixing pipe 2 through flanges; the third valve part 9 is connected to the exhaust pipe 8 through a flange, the fourth valve part 10 is connected to the dosing pipe 3 through a flange, and the fifth valve part 12 is connected to the drain pipe 11 through a flange; the first valve part 7, the second valve part 8, the third valve part 9, the fourth valve part 10 and the fifth valve part 12 are all globe valves.

[0018] When adding liquid medicine, first, keep the first dozen valve parts, the second valve and the fifth valve closed, open the third valve and the fourth valve, and slowly add the liquid medicine from the funnel into the bypass mixing pipe; then, close the third valve and the fourth valve, open the second valve, and slowly open the first valve to allow the medicine to slowly flow into the main pipeline through the bypass mixing pipe for mixing; after a period of time, close the first dozen valve parts and the second valve, open the third valve, the fourth valve and the fifth valve in sequence, empty the remaining liquid and then close all valves.

[0019] When adding powder medicine, first, open the third valve and slowly open the first valve to fill the bypass mixing pipe with liquid. After the liquid flows out of the third valve, quickly close the first valve; second, open the fourth valve and add the powder medicine into the funnel; third, open the fifth valve, use a cylindrical container to receive a certain amount of liquid multiple times and then close the fifth valve, pour the liquid into the funnel to mix with the powder medicine until the powder medicine is repeatedly dissolved; fourth, close the fourth valve and the third valve, open the second valve, and slowly open the first valve to allow the medicine to slowly flow into the main pipeline through the bypass mixing pipe for mixing; fifth, after a period of time, close the first valve and the second valve, open the fourth valve, the third valve and the fifth valve in sequence, empty the remaining liquid and then close all valves.

[0020] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid pressure pipeline chemical dosing device, characterized in that, It includes a bypass mixing pipe and a chemical dosing pipe. The two ends of the bypass mixing pipe are respectively communicated with a liquid pressure pipeline through a first branch pipe and a second branch pipe. The first branch pipe and the second branch pipe are respectively communicated with the bypass mixing pipe through a first valve member and a second valve member. The chemical dosing pipe is communicated with the bypass mixing pipe. An exhaust pipe communicated with the atmosphere is provided on the bypass mixing pipe. A third valve member is provided on the exhaust pipe. A fourth valve member is provided on the chemical dosing pipe.

2. The liquid pressure pipeline chemical dosing device according to claim 1, characterized in that, A chemical agent guiding device is connected to the upper end of the chemical dosing pipe.

3. The liquid pressure pipeline chemical dosing device according to claim 2, characterized in that, The chemical agent guiding device is a funnel.

4. A liquid pressure pipeline dosing device according to claim 1, characterized in that, A drain pipe is provided on the lower side wall of the bypass mixing pipe. A fifth valve member is provided on the drain pipe.

5. The liquid pressure pipeline medicine adding device according to claim 1, characterized in that, The first valve member, the second valve member, the third valve member, the fourth valve member and the fifth valve member are all globe valves.

6. The liquid pressure pipeline chemical dosing device according to claim 5, wherein The first valve member and the second valve member are respectively connected to the first branch pipe and the second branch pipe and the bypass mixing pipe through flanges; the third valve member is connected to the exhaust pipe through a flange, the fourth valve member is connected to the chemical dosing pipe through a flange, and the fifth valve member is connected to the drain pipe through a flange.

7. The liquid pressure pipeline medicine adding device according to claim 1, characterized in that, The chemical dosing device is located directly above the liquid pressure pipe; the exhaust pipe is connected to the upper side wall of the bypass mixing pipe.

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