Tubular water treatment device

Abstract

The utility model relates to a tubular water treatment device which comprises a heat exchange shell, a tubular reactor is coiled in the shell, one end of the tubular reactor is connected with a heat medium inlet pipeline, and the other end of the tubular reactor is connected with a discharge pipeline; a water inlet and a water outlet of the tubular reactor are respectively close to a heat medium inlet end and a heat medium outlet end of the heat exchange shell and are connected with a water inlet pump and a water storage container through a water inlet pipe and a water outlet pipe; a water inlet electric control valve and a medicament adding device are arranged on the water inlet pipe, a water outlet electric control valve is arranged on the water outlet pipe, and the two valves are connected with a PLC (programmable logic controller) to realize automatic control. The device has the technical effects that the chemical reaction efficiency is enhanced through the mixed flow design, the sufficient reaction of pollutants is ensured through long reaction time, the occupied area is small, the space is saved, meanwhile, the optimal chemical reaction temperature condition is kept, and the efficient, stable and compact water treatment effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water treatment, and particularly relates to a shell-and-tube water treatment device. Background Art

[0002] Especially for those persistent organic pollutants with high toxicity and difficult degradation, their high concentration and difficult biodegradability make it difficult for traditional water treatment technologies to cope. Such pollutants are not only difficult to treat, but also traditional treatment equipment often has a large floor area, high operating costs, and the treatment effect is often not satisfactory.

[0003] In view of such difficult-to-treat organic pollutants, advanced oxidation technology has gradually received wide attention because it can effectively mineralize pollutants. Advanced oxidation technology can oxidize organic substances into inorganic substances through the action of strong oxidants or catalysts, so as to achieve the purpose of purifying water quality. However, at present, advanced oxidation technology is mainly realized by chemical methods, which has the disadvantages of long chemical reaction time, large equipment floor area, and the need for temperature control. At the same time, due to the high content and difficult treatment of organic substances in water, the hydraulic retention time of chemical oxidation is long, further increasing the treatment difficulty and cost.

[0004] To solve the above problems, the utility model provides a novel shell-and-tube water treatment device. Content of the Utility Model

[0005] Aiming at the problems existing in the prior art, the utility model provides a shell-and-tube water treatment device. The device has a mixed-flow characteristic, can enhance the chemical reaction efficiency, and at the same time has a small floor area, can maintain the optimal chemical reaction temperature conditions, so as to effectively treat high-concentration and difficult-to-degrade organic pollutants, and improve the water treatment efficiency and the water quality compliance rate.

[0006] The present utility model is realized as follows. A tubular water treatment device includes a heat exchange outer shell, and a tubular reactor is coiled inside the heat exchange outer shell. One end of the heat exchange outer shell is connected to a heat medium medium inlet pipeline, and the other end of the heat exchange outer shell is connected to a heat medium medium discharge pipeline; the heat medium medium inlet end close to the heat exchange outer shell is the water inlet of the tubular reactor, and the heat medium medium discharge end close to the heat exchanger outer shell is the water outlet of the tubular reactor; the water inlet is connected to a water inlet pump through a water inlet pipe, and the water inlet pump is connected to a waste water source; a water inlet electric control valve is installed on the water inlet pipe, and the water inlet electric control valve is used to control the opening degree of the water inlet pipe; a chemical agent adding device for adjusting the pH value of the waste water is connected to the water inlet pipe between the water inlet electric control valve and the water inlet pump; the water inlet electric control valve is connected to a PLC controller; the water outlet is connected to a water storage container through a water outlet pipe, and a water outlet electric control valve is installed on the water outlet pipe, and the water outlet electric control valve is used to control the opening degree of the water outlet pipe; the water inlet electric control valve and the water outlet electric control valve are connected to the PLC controller, and the PLC controller controls the operating states of the water inlet electric control valve and the water outlet electric control valve according to a preset program or a real-time feedback signal.

[0007] Preferably, a flow meter is installed on the water inlet pipe near the water inlet pump side.

[0008] Preferably, the tubes of the tubular reactor are coiled along an S-shaped path.

[0009] The advantages and technical effects of the present utility model: The tubular water treatment device provided by the present utility model achieves remarkable technical effects through a unique design. First, the S-shaped path design of the tubular reactor prolongs the contact time between the waste water and the chemical agent and the reaction residence time, enhances the chemical reaction efficiency, enables the pollutants in the waste water to react more fully with the chemical agent, and thus improves the treatment effect. Second, the heat exchange outer shell can accurately control the temperature inside the tubular reactor, maintain the optimal chemical reaction temperature condition, and further improve the stability and efficiency of the chemical reaction. In addition, the device has a compact structure and a small floor area, and saves more space compared with traditional water treatment devices. Finally, the application of the PLC controller realizes the automatic management of the entire water treatment process, improves the operation efficiency and the intelligent level. In summary, the present utility model provides an efficient, stable, compact and intelligent water treatment solution. Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of the present utility model.

[0011] In the figure, 1. Heat exchange outer shell; 2. Tubular reactor; 3. Heat medium medium inlet pipeline; 4. Heat medium medium discharge pipeline; 5. Water inlet; 6. Water outlet; 7. Water inlet pump; 8. Water inlet electric control valve; 9. Water outlet electric control valve; 10. PLC controller; 11. Flow meter; 12. Chemical agent adding device. Detailed implementation mode

[0012] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0013] Please refer to Figure 1 , a shell-and-tube water treatment device, including a heat exchange housing 1, a shell-and-tube reactor 2 is coiled inside the heat exchange housing. One end of the heat exchange housing is connected to a heat medium medium inlet pipeline 3, and the other end of the heat exchange housing is connected to a heat medium medium outlet pipeline 4; the water inlet 5 of the shell-and-tube reactor is close to the heat medium medium inlet end of the heat exchange housing, and the water outlet 6 of the shell-and-tube reactor is close to the heat medium medium outlet end of the heat exchanger housing; the water inlet is connected to a water inlet pump 7 through a water inlet pipe 7-1, and the water inlet pump is connected to a waste water source; an inlet electric control valve 8 is installed on the water inlet pipe, and the inlet electric control valve is used to control the opening of the water inlet pipe; a chemical agent adding device 12 for adjusting the pH value of the waste water is connected to the water inlet pipe between the inlet electric control valve and the water inlet pump, and the chemical agent adding is used to add necessary chemical agents into the water inlet pipe, which belongs to the prior art; the inlet electric control valve is connected to a PLC controller 10; the water outlet is connected to a water storage container through a water outlet pipe 6-1, and an outlet electric control valve 9 is installed on the water outlet pipe, and the outlet electric control valve is used to control the opening of the water outlet pipe; the inlet electric control and the outlet electric control valve are connected to the PLC controller, and the PLC controller controls the operating states of the inlet electric control valve and the outlet electric control valve according to a preset program or a real-time feedback signal.

[0014] Preferably, a flow meter 11 is installed on the water inlet pipe close to the water inlet pump side. The flow meter 11 can monitor the waste water flow in the water inlet pipe in real time and provide accurate flow data for the PLC controller. By monitoring the waste water flow, possible faults in the water inlet pump or the water inlet pipeline, such as blockage, leakage, etc., can be detected in time, so as to be repaired in time to avoid affecting the operation of the entire water treatment device.

[0015] Preferably, the tubes of the shell-and-tube reactor are coiled along an S-shaped path. The design of the S-shaped path makes the flow path of the waste water in the shell-and-tube reactor longer, thereby increasing the contact time between the waste water and the chemical agent and the reaction residence time. This helps the pollutants in the waste water to react more fully with the chemical agent and improves the treatment effect. The design of the S-shaped path makes more eddies and mixed flows formed during the flow of the waste water, increasing the mixing degree of the waste water and the chemical agent and further improving the efficiency of the chemical reaction. The design of the S-shaped path enables the shell-and-tube reactor to provide a longer reaction path in a limited space, thereby optimizing the space utilization and making the entire water treatment device more compact.

[0016] Analysis of Working Principle:

[0017] Inlet Water and Pretreatment:

[0018] The wastewater is pumped from the wastewater source by the inlet pump and enters the inlet pipe. On the inlet pipe between the inlet electric control valve and the inlet pump, a chemical agent adding device is connected to adjust the pH value of the wastewater and / or add other chemical agents (such as hydrogen peroxide) to achieve the pretreatment of the wastewater. The inlet electric control valve adjusts the opening degree of the inlet pipe according to the instruction of the PLC controller, thereby controlling the flow rate of the wastewater and the speed of entering the tube reactor.

[0019] Treatment Inside the Tube Reactor:

[0020] The pretreated wastewater enters the tube reactor through the inlet. The tube reactor is coiled inside the heat exchange outer shell. The tube reactor serves as a chemical reaction functional area, providing sufficient space and time for the pollutants in the wastewater to react with the added chemical agents. One end of the heat exchange outer shell is connected to the heat medium medium inlet pipeline, and the other end is connected to the heat medium medium discharge pipeline. The tube reactor is heated or cooled by circulating the heat medium medium to maintain the optimal chemical reaction temperature conditions.

[0021] Outlet Water and Post-treatment:

[0022] The water treated by the chemical reaction flows out through the outlet and enters the outlet pipe. The outlet electric control valve adjusts the opening degree of the outlet pipe according to the instruction of the PLC controller, thereby controlling the discharge of the treated water or storing it in the water storage container. A control valve and a drainage pump are installed on the discharge pipeline to further control the discharge of the treated water.

[0023] Effect Analysis:

[0024] Mixed Flow and Reaction Efficiency:

[0025] The design of the tube reactor enables the wastewater to form a mixed flow inside the tube, increasing the contact area and time between the wastewater and the chemical agent, thereby enhancing the chemical reaction efficiency.

[0026] Long Reaction Time:

[0027] The tube is long. As a chemical reactor, it provides sufficient reaction residence time, enabling the pollutants in the wastewater to react more fully with the chemical agent.

[0028] Temperature Regulation:

[0029] The heat exchange outer shell can heat and lower the temperature, maintaining the optimal chemical reaction temperature conditions inside the tube reactor and improving the stability and efficiency of the chemical reaction.

[0030] Small Floor Area:

[0031] Compared with traditional water treatment devices, the shell-and-tube water treatment device has a more compact structure and occupies less floor space.

[0032] Intelligent control:

[0033] The PLC controller controls the operating states of the inlet electric control valve and the outlet electric control valve according to the preset program or real-time feedback signals, realizing the automatic management of the entire water treatment process.

[0034] In summary, through design features such as mixed flow, enhanced chemical reaction efficiency, long reaction time, small footprint, and maintaining the optimal chemical reaction temperature conditions, the shell-and-tube water treatment device achieves efficient, stable, and compact water treatment effects.

[0035] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tubular water treatment device, characterized in that: The invention comprises a heat exchange shell, in which a shell-and-tube reactor is coiled, one end of the heat exchange shell is connected to a heat medium inlet pipeline, and the other end of the heat exchange shell is connected to a heat medium outlet pipeline; the heat medium inlet end close to the heat exchange shell is the water inlet of the shell-and-tube reactor, and the heat medium outlet end close to the heat exchange shell is the water outlet of the shell-and-tube reactor; the water inlet is connected to a water inlet pump through a water inlet pipe, and the water inlet pump is connected to a wastewater source; an electric water inlet control valve is installed on the water inlet pipe, and the electric water inlet control valve is used to control the water inlet pipe. opening; a water inlet pipe is connected between the water inlet electric control valve and the water inlet pump to a reagent adding device for adjusting the pH value of the wastewater; the water inlet electric control valve is connected to a PLC controller; the water outlet is connected to a water storage container through an outlet pipe, and a water outlet electric control valve is installed on the outlet pipe, and the water outlet electric control valve is used to control the opening of the water outlet pipe; the water inlet electric control and water outlet electric control valves are connected to a PLC controller, and the PLC controller controls the operating status of the water inlet electric control valve and the water outlet electric control valve according to a preset program or a real-time feedback signal.

2. The shell-and-tube water treatment device according to claim 1, characterized in that: A flow meter is installed on the water inlet pipe close to the water inlet pump side.

3. The shell-and-tube water treatment device according to claim 1, characterized in that: The tubes of the tube reactor are wound along an S-shaped path.

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