Energy-saving circulating water dosing device

Abstract

The utility model relates to the technical field of dosing devices, in particular to an energy-saving circulating water dosing device which comprises a dosing water tank, a negative pressure pipe, a drainage tee joint, a circulating water pool and a water inlet pipe, a manhole is formed in the top of the dosing water tank, dosing and overhauling are convenient, and the dosing water tank is connected with the circulating water pool through the negative pressure pipe, the drainage tee joint and the water inlet pipe. A circulating water pump and a circulating water inlet valve are sequentially arranged on the water inlet pipe, the circulating water pump is connected with unit equipment through a switching valve, when the circulating water pump operates in a conventional long period, the pressure of circulating water can be increased, and the circulating water is conveyed to the direction of the unit equipment, the end, away from the water inlet pipe, of the circulating water inlet valve is connected with a dosing water tank, and a blow-down valve is arranged below the dosing water tank. The water inlet pipe is provided with the power valve, the two water inlet ends of the drainage tee joint are connected with the power valve on the water inlet pipe and the negative pressure pipe on the dosing water tank respectively, the problems of manual or mechanical carrying and the like are avoided, and the equipment is simple in structure and free of equipment maintenance problems.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical dosing devices, in particular to an energy-saving circulating water chemical dosing device. Background Art

[0002] Circulating water devices are widely used in industrial production. To save space and meet the high-efficiency water use requirements, the circulating water tank is set at a high position or the cofferdam is raised to maintain a high liquid level. During the operation of the circulating water, various water treatment chemicals need to be added to ensure the normal operation of the water system.

[0003] For the existing equipment, workers need to carry the chemicals to a high workbench above the liquid level of the circulating water tank to perform the chemical dosing operation. This has a high labor intensity, low efficiency, and there are safety risks. When using a chemical dosing water tank with a chemical dosing pump, there are situations such as the chemical dosing water tank overflowing, the motor of the chemical dosing pump running dry, and the motor being damaged and unable to dose chemicals, which increases the difficulty of operation and maintenance. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the utility model provides an energy-saving circulating water chemical dosing device, which solves the technical problems that for the existing equipment, workers need to carry the chemicals to a high workbench above the liquid level of the circulating water tank to perform the chemical dosing operation, with high labor intensity, low efficiency, and there are safety risks. When using a chemical dosing water tank with a chemical dosing pump, there are situations such as the chemical dosing water tank overflowing, the motor of the chemical dosing pump running dry, and the motor being damaged and unable to dose chemicals, which increases the difficulty of operation and maintenance.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0006] An energy-saving circulating water chemical dosing device includes a chemical dosing water tank, a negative pressure pipe, a diversion three-way, a circulating water tank, and a water inlet pipe. A manhole is opened at the top of the chemical dosing water tank. The chemical dosing water tank is connected to the circulating water tank through the negative pressure pipe, the diversion three-way, and the water inlet pipe. A circulating water pump and a circulating water inlet valve are sequentially arranged on the water inlet pipe.

[0007] Preferably: The circulating water pump is connected to the unit equipment through a transfer valve.

[0008] Preferably: One end of the circulating water inlet valve away from the water inlet pipe is connected to the chemical dosing water tank.

[0009] Preferably: A sewage discharge valve is arranged below the chemical dosing water tank.

[0010] Preferably: A power valve is arranged on the water inlet pipe.

[0011] Preferably: The two water inlet ends of the diversion three-way are respectively connected to the power valve on the water inlet pipe and the negative pressure pipe on the chemical dosing water tank, and the water outlet end is connected to the circulating water tank.

[0012] The utility model has the following beneficial effects: medicines can be placed in the medicine-adding water tank in advance according to the required amount, and because the circulating water pump is always on, the water-adding valve is opened to mix the medicines in the medicine-adding water tank evenly and then closed, and then the power valve is fully opened to allow the circulating water to mix the medicine liquid through the drainage tee and send it to the circulating water pool; then, the above-mentioned operation method is adopted, and the pouring, stirring and adding of medicines are all performed on the ground, avoiding the problems of manual or mechanical handling, and because the equipment has a simple structure, there is no equipment maintenance problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Legend: 1. Dosing water tank; 2. Circulating water inlet valve; 3. Power valve; 4. Negative pressure pipe; 5. Drainage tee; 6. Drain valve; 7. Circulating water pump; 8. Circulating water pool; 9. Water inlet pipe. DETAILED DESCRIPTION

[0016] The embodiment of the present application provides an energy-saving circulating water dosing device, which effectively solves the problem that in the existing equipment, manual labor is required to carry the medicine to a workbench above the liquid surface of the circulating water pool in order to perform the medicine adding operation, which is labor-intensive, inefficient, and has safety risks. Instead, a dosing water tank is used to set a dosing pump, and there are problems such as the dosing water tank overflowing, the dosing pump motor being emptied, and the motor being damaged and unable to add medicine, which increases the difficulty of operation and maintenance. The medicine can be pre-placed in the dosing water tank according to the required amount. Since the circulating water pump is a normally open device, the water adding valve is opened to mix the medicine in the dosing water tank evenly and then closed. Then, the power valve is fully opened to allow the circulating water to mix the medicine liquid through the drainage tee and send it to the circulating water pool. Then, the above-mentioned operation method is adopted, and the pouring, stirring and dosing operations of the medicine are all on the ground, avoiding problems such as manual or mechanical transportation, and since the equipment has a simple structure, there is no equipment maintenance problem. Example

[0017] like Figure 1As shown, the technical solution in the embodiment of the present application effectively solves the problem that the existing equipment requires manual labor to carry the medicine to a workbench above the liquid level of the circulating water pool in order to perform the medicine adding operation, which is labor-intensive, inefficient, and has safety risks. Instead, a dosing water tank is used to set a dosing pump, but there are technical problems such as the dosing water tank overflowing, the dosing pump motor being emptied, and the motor being damaged and unable to add medicine, which increases the difficulty of operation and maintenance. The overall idea is as follows: an energy-saving circulating water dosing device, including a dosing water tank 1, a negative pressure pipe 4, a drainage tee 5, a circulating water pool 8 and a water inlet pipe 9. A manhole is provided on the top of the dosing water tank 1 to facilitate dosing and maintenance. The dosing water tank 1 is connected to the circulating water pool 8 through the negative pressure pipe 4, the drainage tee 5 and the water inlet pipe 9. The water inlet pipe 9 is sequentially provided with a circulating water pump 7 and a circulating water inlet valve 2. The circulating water pump 7 is connected to the unit equipment through a switching valve. When the circulating water pump 7 is in normal long-term operation, the circulating water will be increased in pressure and sent to the machine In the direction of the equipment assembly, the end of the circulating water inlet valve 2 away from the water inlet pipe 9 is connected to the dosing water tank 1, a drain valve 6 is arranged below the dosing water tank 1, a power valve 3 is arranged on the water inlet pipe 9, the two water inlet ends of the drainage tee 5 are respectively connected to the power valve 3 on the water inlet pipe 9 and the negative pressure pipe 4 on the dosing water tank 1, and the water outlet end is connected to the circulating water pool 8. You can first add an appropriate amount of medicine into the dosing water tank 1, and then open the circulating water inlet valve 2. When the water volume inside the dosing water tank 1 is appropriate, Close the circulating water inlet valve 2, mix the liquid medicine evenly, fully open the power valve 3, and the circulating water will flow to the circulating water pool 8 at a high flow rate. When passing through the drainage tee 5, the high flow rate of the water here causes negative pressure. Therefore, the liquid medicine in the dosing water tank 1 will enter the drainage tee 5 through the negative pressure pipe 4, and mix with the circulating water from the power valve 3 and enter the circulating water pool 8. If the dosing water tank 1 is dirty and needs to be cleaned or has other maintenance problems, the water can be drained through the drain valve 6 and entered for maintenance.

[0018] In view of the problems existing in the prior art, the utility model provides an energy-saving circulating water dosing device, which can first place the medicine in the dosing water tank in advance according to the required amount. Since the circulating water pump is a normally open device, the water adding valve is opened to mix the medicine in the dosing water tank evenly and then closed. Then the power valve is fully opened to allow the circulating water to pass through the drainage tee to mix the medicine liquid and send it to the circulating water pool. Then, the above-mentioned operation method is adopted, and the pouring, stirring and dosing operations of the medicine are all on the ground, avoiding the problems of manual or mechanical transportation, and because the equipment has a simple structure, there is no equipment maintenance problem.

[0019] Working principle:

[0020] In the first step, a proper amount of medicine can be added into the dosing water tank 1, and then the circulating water inlet valve 2 is opened. When the amount of water in the dosing water tank 1 is appropriate, the circulating water inlet valve 2 is closed to mix the medicine liquid evenly;

[0021] Second step, fully open the power valve 3. The circulating water flows at a high velocity towards the circulating water tank 8. When passing through the diversion tee 5, the high water velocity here causes a negative pressure. As a result, the liquid medicine in the chemical dosing tank 1 will enter the diversion tee 5 through the negative pressure pipe 4, mix with the circulating water coming from the power valve 3, and then enter the circulating water tank 8 together. If the chemical dosing tank 1 gets dirty and needs to be cleaned or there are other maintenance problems, the water can be drained through the drain valve 6 and then enter for maintenance.

[0022] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An energy-saving circulating water dosing device, comprising a dosing water tank (1), a negative pressure pipe (4), a drainage tee (5), a circulating water pool (8) and a water inlet pipe (9), characterized in that: A manhole is provided on the top of the dosing water tank (1). The dosing water tank (1) is connected to a circulating water pool (8) via a negative pressure pipe (4), a drainage tee (5) and a water inlet pipe (9). A circulating water pump (7) and a circulating water inlet valve (2) are provided on the water inlet pipe (9) in sequence.

2. An energy-saving circulating water dosing device as claimed in claim 1, characterized in that: The circulating water pump (7) is connected to the unit equipment via a switching valve.

3. An energy-saving circulating water dosing device as claimed in claim 1, characterized in that: The end of the circulating water inlet valve (2) away from the water inlet pipe (9) is connected to the dosing water tank (1).

4. An energy-saving circulating water dosing device as claimed in claim 3, characterized in that: A drain valve (6) is provided below the dosing water tank (1).

5. An energy-saving circulating water dosing device as claimed in claim 3, characterized in that: The water inlet pipe (9) is provided with a power valve (3).

6. An energy-saving circulating water dosing device as claimed in claim 5, characterized in that: The two water inlet ends of the drainage tee (5) are respectively connected to the power valve (3) on the water inlet pipe (9) and the negative pressure pipe (4) on the dosing water tank (1), and the water outlet end is connected to the circulating water pool (8).

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