Automatic dosing device for circulating water

Abstract

The utility model relates to an automatic circulating water dosing device which comprises a self-sucking pump, a scale inhibitor tank, a scale inhibitor dosing pump, a stripping agent tank, a stripping agent dosing pump and a circulating water pool, the self-sucking pump is respectively connected with the scale inhibitor tank and the scale inhibitor dosing pump through pipelines, and the scale inhibitor tank is connected with the scale inhibitor dosing pump through a pipeline. According to the automatic circulating water dosing device, chemicals are respectively added into the scale inhibitor chemical box and the stripping agent chemical box through the self-priming pump, and then are respectively injected into the circulating water tank through the metering dosing pump; in addition, a circulating water system is designed to dilute the agent box when equipment fails, so that the system safety is ensured, the agent waste is reduced, the problem of uniformly adding the agent in 24 hours is solved, the field environment is improved, the post labor intensity is reduced, and the agent use amount is reduced by 25Kg / day.

Description

Technical Field

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

[0002] Circulating water system is widely used in all walks of life in modern industry. In the production process, water is continuously recycled in the circulating system. Due to the combined effect of various factors such as changes in water temperature and flow rate, water evaporation, and external dust and debris pollution, various inorganic ions and organic matter are concentrated, resulting in sediment attachment and breeding of a large number of microorganisms, blocking pipelines and corroding equipment, which have serious adverse effects on the safety and operation efficiency of circulating water cooling system, greatly shortening the service life of equipment, reducing heat exchange efficiency, and causing great economic losses to enterprises. In order to inhibit scaling or corrosion, it is necessary to add chemicals to the water to improve the pH value of circulating water and kill microorganisms, alleviate corrosion and prevent scaling. The traditional circulating water dosing process mainly relies on manual operation. The amount of artificial drug addition cannot be changed accordingly with the changes in the water quality of circulating water and various process parameters. Too much drug addition often causes water pollution and increased drug costs; or insufficient drug addition causes substandard water quality and affects production.

[0003] For example, the document with publication number CN114229930B discloses a fully automatic and precise dosing control device for circulating water. This application realizes the absorption and detection of water at different depths in the circulating water tank by the sampling water pipe as the moving seat moves on the ramp frame and the detection mechanism detects the extracted water, thereby improving the accuracy of circulating water component detection and thus improving the accuracy of dosing.

[0004] However, the existing circulating water system has the following design defects:

[0005] 1. The circulating water system is not designed with a dosing system;

[0006] 2. When adding medicine, employees need to carry it to the water pool;

[0007] 3. In summer, the water temperature is high, and continuous sewage discharge is required, which causes some chemicals to be discharged with sewage, affecting the use effect and increasing the workload of employees;

[0008] 4. The economic losses caused by the epidemic are huge. Utility Model Content

[0009] 1. Technical issues to be solved

[0010] In order to solve the above technical problems, the utility model provides an automatic dosing device for circulating water.

[0011] (II) Technical solution

[0012] Based on this, the utility model provides the following technical solutions: a circulating water automatic dosing device, comprising a self-priming pump, a scale inhibitor tank, a scale inhibitor dosing pump, a stripping agent tank, a stripping agent dosing pump, and a circulating water pool, the self-priming pump is connected to the scale inhibitor tank and the scale inhibitor dosing pump by pipelines, respectively, the scale inhibitor tank is connected to the scale inhibitor dosing pump by pipelines, the scale inhibitor dosing pump is connected to the circulating water pool by pipelines, the stripping agent tank is connected to the stripping agent dosing pump by pipelines, and the stripping agent dosing pump is connected to the circulating water pool by pipelines.

[0013] Preferably, liquid level floats are provided in both the antiscalant tank and the stripping agent tank.

[0014] Preferably, the liquid level float is used to control the liquid level height of the medicine box. The self-priming pump is stopped when the liquid level is high and started when the liquid level is low. The liquid level heights in the antiscalant tank and the stripping agent tank are designed according to actual use, and the high liquid level threshold and the low liquid level threshold are pre-set according to daily use, and are not limited here.

[0015] Preferably, a valve is provided at the connection between the self-priming pump and the antiscalant tank and the stripping agent tank, for blocking the connection between the self-priming pump and the antiscalant tank and the stripping agent tank when a device failure or agent leakage occurs.

[0016] Preferably, the antiscalant tank and the stripping agent tank are connected to the self-circulating water pipeline by pipelines, and the pipelines of the antiscalant tank and the stripping agent tank are respectively provided with a solenoid valve YV1 and a solenoid valve YV2 to facilitate automatic control.

[0017] Preferably, the common terminal M1 on the antiscalant dosing pump is electrically connected to the thermal relay FR1, the thermal relay FR1 is electrically connected to the AC contactor KM1, the AC contactor KM1 is electrically connected to the circuit breaker QF2, the circuit breaker QF2 is electrically connected to the three-phase power grid system, and the circuit breaker QF1 is provided on the three-phase power grid system.

[0018] Preferably, the common terminal M2 on the stripping agent dosing pump is electrically connected to the thermal relay FR2, the thermal relay FR2 is electrically connected to the AC contactor KM2, the AC contactor KM2 is electrically connected to the circuit breaker QF3, and the circuit breaker QF3 is electrically connected to the three-phase power grid system.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the utility model provides a circulating water automatic dosing device with the following features:

[0021] Beneficial effects:

[0022] The automatic dosing device for circulating water adds chemicals into the scale inhibitor box and the stripping agent box respectively through a self-priming pump, and then injects them into the circulating water pool respectively through a metering dosing pump. In addition, a circulating water system is designed to dilute the chemical box when equipment fails, thereby ensuring system safety, reducing chemical waste, solving the problem of evenly adding chemicals for 24 hours, improving the on-site environment, reducing job labor intensity, and reducing chemical usage by 25Kg / day. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is the circuit connection diagram of the antiscalant dosing pump and the stripping agent dosing pump of the utility model;

[0025] Figure 3 This is the control circuit connection diagram of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 3 A circulating water automatic dosing device comprises a self-priming pump, a scale inhibitor tank, a scale inhibitor dosing pump, a stripping agent tank, a stripping agent dosing pump and a circulating water pool, wherein the self-priming pump is connected to the scale inhibitor tank and the scale inhibitor dosing pump by pipelines, the scale inhibitor tank is connected to the scale inhibitor dosing pump by pipelines, the scale inhibitor dosing pump is connected to the circulating water pool by pipelines, the stripping agent tank is connected to the stripping agent dosing pump by pipelines, and the stripping agent dosing pump is connected to the circulating water pool by pipelines.

[0028] In this embodiment, the antiscalant tank and the stripping agent tank are both provided with liquid level floats, and the liquid level floats are used to control the liquid level height of the medicine box. The self-priming pump is stopped when the liquid level is high, and the self-priming pump is started when the liquid level is low. The liquid level heights in the antiscalant tank and the stripping agent tank are designed according to actual use, and the high liquid level threshold and the low liquid level threshold are pre-set according to daily use conditions, which are not limited here. A valve is provided at the connection between the self-priming pump and the antiscalant tank and the stripping agent tank, which is used to block the connection between the self-priming pump and the antiscalant tank and the stripping agent tank when a device failure occurs or the agent leaks. The antiscalant tank and the stripping agent tank are respectively connected to the self-circulating water pipeline by pipes, and the pipes of the antiscalant tank and the stripping agent tank are The road is respectively provided with a solenoid valve YV1 and a solenoid valve YV2 to facilitate automatic control, the common terminal M1 on the scale inhibitor dosing pump is electrically connected to the thermal relay FR1, the thermal relay FR1 is electrically connected to the AC contactor KM1, the AC contactor KM1 is electrically connected to the circuit breaker QF2, the circuit breaker QF2 is electrically connected to the three-phase power grid system, and the three-phase power grid system is provided with a circuit breaker QF1, the common terminal M2 on the stripping agent dosing pump is electrically connected to the thermal relay FR2, the thermal relay FR2 is electrically connected to the AC contactor KM2, the AC contactor KM2 is electrically connected to the circuit breaker QF3, and the circuit breaker QF3 is electrically connected to the three-phase power grid system.

[0029] In summary, when in use, the chemicals are added to the scale inhibitor and stripping agent boxes respectively through the self-priming pump, and then injected into the circulating water pool respectively through the metering dosing pump; in addition, the circulating water system is designed to dilute the chemical box in case of equipment failure to ensure system safety;

[0030] And the chemicals are added into the scale inhibitor and stripping agent tanks through the self-priming pump. The tank liquid level float controls the tank liquid level. The self-priming pump is stopped when the liquid level is high, and is started when the liquid level is low.

[0031] The antiscalant and stripping agent are added into the circulating water pool according to the amount through the antiscalant dosing pump and the stripping agent dosing pump respectively;

[0032] When the device fails or the reagent leaks, the solenoid valve YV1 and the solenoid valve YV2 on the circulating water are automatically opened, and the self-circulating water pipe is connected with the antiscalant tank and the stripping agent tank to dilute the reagents in the antiscalant tank and the stripping agent tank to avoid overflow of the reagents.

[0033] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0034] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circulating water automatic dosing device, characterized in that: It includes a self-priming pump, an antiscalant tank, an antiscalant dosing pump, a stripping agent tank, a stripping agent dosing pump and a circulating water pool. The self-priming pump is connected to the antiscalant tank and the antiscalant dosing pump by pipelines, respectively; the antiscalant tank is connected to the antiscalant dosing pump by pipelines, the antiscalant dosing pump is connected to the circulating water pool by pipelines, the stripping agent tank is connected to the stripping agent dosing pump by pipelines, and the stripping agent dosing pump is connected to the circulating water pool by pipelines.

2. The automatic dosing device for circulating water according to claim 1 is characterized in that: Liquid level floats are arranged in the antiscalant tank and the stripping agent tank.

3. The automatic dosing device for circulating water according to claim 2 is characterized in that: The liquid level float is used to control the liquid level height of the medicine box. The self-priming pump is stopped when the liquid level is high, and the self-priming pump is started when the liquid level is low.

4. The automatic dosing device for circulating water according to claim 1 is characterized in that: A valve is provided at the connection between the self-priming pump and the antiscalant tank and the stripping agent tank.

5. The automatic dosing device for circulating water according to claim 1 is characterized in that: The antiscalant tank and the stripping agent tank are connected to the self-circulating water pipeline by pipelines, and the pipelines of the antiscalant tank and the stripping agent tank are respectively provided with a solenoid valve YV1 and a solenoid valve YV2.

6. The automatic dosing device for circulating water according to claim 1, characterized in that: The common terminal M1 on the antiscalant dosing pump is electrically connected to the thermal relay FR1, the thermal relay FR1 is electrically connected to the AC contactor KM1, the AC contactor KM1 is electrically connected to the circuit breaker QF2, the circuit breaker QF2 is electrically connected to the three-phase power grid system, and the circuit breaker QF1 is provided on the three-phase power grid system.

7. The automatic dosing device for circulating water according to claim 1 is characterized in that: The common terminal M2 on the stripping agent dosing pump is electrically connected to the thermal relay FR2, the thermal relay FR2 is electrically connected to the AC contactor KM2, the AC contactor KM2 is electrically connected to the circuit breaker QF3, and the circuit breaker QF3 is electrically connected to the three-phase power grid system.

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