Device for treating water by using sodium hypochlorite

Abstract

The utility model provides a device for treating water by using sodium hypochlorite, which comprises an iron and manganese removal filter, a water feeding pump arranged at the top of the iron and manganese removal filter, one end of a water passing pipe connected to the water feeding pump, a raw water tank connected to the other end of the water passing pipe, a water inlet arranged on one side of the raw water tank, and a first water valve arranged in the water inlet, one end of the first water valve is connected with a pipeline mixer through a connecting water pipe, a raw water inlet pipe connected with a deep water pump is arranged at the other end of the pipeline mixer, a dosing assembly is arranged on one side of the raw water tank and comprises a dosing device capable of injecting sodium hypochlorite into the raw water inlet pipe, and the dosing device is arranged on one side of the raw water tank; a residual chlorine detection assembly is arranged outside the raw water tank; through the arrangement of the dosing assembly and the residual chlorine detection assembly, water treatment is carried out through sodium hypochlorite oxidation and manganese sand filtration, the problem that subsequent treatment is affected by aeration is avoided, filter material blockage is prevented, and the overall operation cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of water treatment equipment, and more specifically, particularly relates to a device for water treatment using sodium hypochlorite. Background Art

[0002] Traditional iron and manganese removal equipment usually adopts the methods of drop aeration or oxygenation forced aeration to promote the oxidation of iron and manganese ions contained in groundwater, and then filters through an iron and manganese removal filter to achieve the purpose of removing iron ions and manganese ions in groundwater.

[0003] However, in the case of insufficient aeration of raw groundwater, the oxidation of iron and manganese ions is incomplete, which will have an adverse effect on the treatment effect of subsequent filtration equipment; even if forced aeration is used to ensure the complete oxidation of iron and manganese ions, the high-intensity aeration will cause incomplete gas-liquid separation in the subsequent filtration equipment, resulting in more gas in the treated water, thereby interfering with the subsequent pipeline water supply; at the same time, the high-intensity aeration method also increases the power consumption of the aeration equipment and improves the operation cost of the equipment.

[0004] Due to the operation and aeration methods of traditional filter tanks, to completely remove iron and manganese in groundwater, it is often necessary to invest a relatively high equipment operation cost, such as the electricity cost generated by the aeration air compressor, etc.; moreover, even if the iron and manganese ions are removed from the filtered groundwater, according to the requirements of the "Sanitary Standards for Drinking Water", it still needs to be disinfected; among the commonly used disinfectants, liquid chlorine, sodium hypochlorite, chlorine dioxide, etc. are relatively common choices. Summary of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a device for water treatment using sodium hypochlorite, so as to solve the technical problems in the prior art that insufficient aeration of traditional aeration water treatment devices will lead to incomplete oxidation of iron and manganese ions, affecting the treatment effect of subsequent filtration equipment; while forced aeration can ensure complete oxidation, but high-intensity aeration will cause incomplete gas-liquid separation in the subsequent filtration equipment, with more gas in the water, interfering with the subsequent pipeline water supply.

[0006] The purpose and efficacy of the device for water treatment using sodium hypochlorite of the utility model are achieved by the following specific technical means:

[0007] A device for water treatment using sodium hypochlorite, comprising an iron and manganese removal filter. A water supply pump is arranged at the top of the iron and manganese removal filter. One end of a water pipe is connected to the water supply pump, and the other end of the water pipe is connected to a raw water tank. An inlet is arranged on one side of the raw water tank, and a first water valve is arranged in the inlet. One end of the first water valve is connected to a pipeline mixer through a connecting water pipe. The other end of the pipeline mixer is provided with a raw water inlet pipe connected to a deep water pump. A chemical dosing assembly is arranged on one side of the raw water tank. The chemical dosing assembly includes a chemical dosing device capable of injecting sodium hypochlorite into the raw water inlet pipe. The chemical dosing device is arranged on one side of the raw water tank, and a residual chlorine detection assembly is arranged outside the raw water tank.

[0008] In a preferred embodiment, two groups of placement brackets are fixedly connected to one side of the raw water tank. The chemical dosing device is clamped on one group of the placement brackets, and a liquid storage cavity for containing the sodium hypochlorite is arranged in the chemical dosing device.

[0009] In a preferred embodiment, a first joint is arranged on the raw water inlet pipe, and the chemical dosing device is connected to the first joint through a liquid injection pipe.

[0010] In a preferred embodiment, a through hole communicating with the liquid storage cavity is arranged at the top of the chemical dosing device, and a liquid level float is arranged in the liquid storage cavity. The top of the liquid level float passes through the through hole; a disinfection and cleaning tank is clamped on the other group of the placement brackets.

[0011] In a preferred embodiment, the residual chlorine detection assembly includes a residual chlorine detector. The residual chlorine detector is arranged outside the raw water tank. Second joints are arranged on both the connecting water pipe and the water pipe. Chlorine detection heads are respectively arranged in the two second joints, and the two chlorine detection heads are electrically connected to the residual chlorine detector.

[0012] In a preferred embodiment, a sediment cleaning assembly is arranged in the raw water tank. The sediment cleaning assembly includes a sediment collection frame. A raw water trough is arranged at the top of the raw water tank, and a guiding inclined surface is arranged at the bottom of the raw water trough. The sediment collection frame is arranged on one side of the guiding inclined surface.

[0013] In a preferred embodiment, two groups of limit clamping parts are arranged at the top of the raw water trough. A lifting rack and a positioning sliding rod are arranged at the top of the sediment collection frame. The lifting rack and the positioning sliding rod are respectively slidably arranged in the two limit clamping parts.

[0014] In a preferred embodiment, the sediment cleaning assembly further includes a lifting motor. An installation bracket is arranged on one side of the raw water tank, and the lifting motor is arranged on the installation bracket. A gear meshing with the lifting rack is arranged on the main shaft of the lifting motor.

[0015] In a preferred embodiment, two groups of rotatable switch top covers are provided at the opening at the top of the original water tank.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. Through the setting of the chemical dosing component, when using the device, the water treatment is carried out by means of reagent oxidation and manganese sand filtration, and sodium hypochlorite is introduced into the raw water treatment link. This not only ensures the disinfection effect of the effluent, prevents the blockage of the filter media, but also reduces the demand for subsequent disinfection equipment to a certain extent, thus significantly reducing the construction and operation costs of the overall system. At the same time, sodium hypochlorite has strong oxidation ability, which also helps the oxidation precipitation of iron and manganese ions in the raw water, solving the problems of incomplete oxidation of iron and manganese ions due to insufficient aeration volume in traditional aeration water treatment devices, or incomplete gas-liquid separation caused by forced aeration, and further improving the filtration effect. Through the setting of the residual chlorine detection component, the dosing dose of the chemical feeder is adjusted by monitoring with two groups of chlorine detection heads to ensure that the dosing amount of sodium hypochlorite is sufficient and not excessive.

[0018] 2. Through the setting of the precipitation cleaning component, when using the device, the precipitates can be centrally collected through the guiding inclined plane and the precipitation collection frame. When cleaning is required, the lifting motor is started to drive the gear to rotate, so that the lifting rack drives the precipitation collection frame to rise to clean the pollutants collected in the precipitation collection frame, improving the cleaning efficiency. And a disinfection and cleaning tank is installed on one side of the original water tank, which is convenient for regularly cleaning and disinfecting the water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a device for water treatment using sodium hypochlorite according to the utility model;

[0020] Figure 2 It is an exploded view of a device for water treatment using sodium hypochlorite according to the utility model;

[0021] Figure 3 It is a schematic structural diagram of the disassembled chemical dosing component in a device for water treatment using sodium hypochlorite according to the utility model;

[0022] Figure 4 It is a schematic structural diagram of the assembled precipitation cleaning component in a device for water treatment using sodium hypochlorite according to the utility model;

[0023] Figure 5 is Figure 4 the disassembled schematic structural diagram.

[0024] In the figure, the corresponding relationship between the component names and the drawing reference numerals is:

[0025] 11. Iron and manganese removal filter; 12. Feed water pump; 13. Water pipe; 14. Raw water tank; 15. Water inlet; 16. First water valve; 17. Pipe mixer; 18. Raw water inlet pipe; 19. Disinfection and cleaning tank; 21. Chemical feeder; 22. Placing bracket; 23. Liquid storage cavity; 24. First joint; 25. Liquid injection pipe; 26. Liquid level float; 31. Residual chlorine detector; 32. Second joint; 33. Chlorine detection head; 41. Precipitation collection frame; 42. Raw water tank; 43. Guide slope; 44. Limit clamping part; 45. Lifting rack; 46. Positioning slide bar; 47. Lifting motor; 48. Top cover. Detailed implementation mode

[0026] The following further describes the implementation mode of the present utility model in detail in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0027] Embodiment:

[0028] As shown in the attached Figure 1 to the attached Figure 5 shown:

[0029] The present utility model provides a device for water treatment using sodium hypochlorite, including an iron and manganese removal filter 11. A feed water pump 12 is arranged on the top of the iron and manganese removal filter 11, which is responsible for pumping raw water from the raw water tank 14 to the filter. The water pipe 13 connects the feed water pump 12 and the raw water tank 14 to provide a channel for water flow. A water inlet 15 is opened on one side of the raw water tank 14, and a first water valve 16 is arranged in the water inlet 15 to control the water inlet. One end of the first water valve 16 is connected to the pipe mixer 17 through a connecting water pipe, and the other end of the pipe mixer 17 is provided with a raw water inlet pipe 18 connected to a deep water pump. A chemical addition component is also arranged on one side of the raw water tank 14. The chemical addition component includes a chemical feeder 21, and the chemical feeder 21 can inject sodium hypochlorite into the raw water inlet pipe 18 to realize the oxidation and disinfection treatment of raw water through sodium hypochlorite. At the same time, a residual chlorine detection component is also arranged outside the device.

[0030] Please refer to as Figure 2 and Figure 3As shown in the figure, two groups of placement brackets 22 are fixed on one side of the original water tank 14. A chemical feeder 21 is clamped on one group of placement brackets 22. A liquid storage cavity 23 for containing sodium hypochlorite is arranged in the chemical feeder 21, which improves the convenience of adding medicine and ensures the safe storage of sodium hypochlorite. The chemical feeder 21 is connected to the first joint 24 on the raw water inlet pipe 18 through a liquid injection pipe 25, realizing the automatic injection of sodium hypochlorite. As an inorganic chlorine-containing disinfectant, the aqueous solution of sodium hypochlorite has strong alkalinity and oxidizing property and is widely used in water purification treatment. It reacts with iron ions to form ferric hydroxide precipitate and with manganese ions to form manganese dioxide precipitate. Compared with other disinfectants, when the content of sodium hypochlorite solution is less than 5%, it does not belong to dangerous chemicals and has the advantages of convenient use and low cost. Therefore, it is selected as the main disinfectant in many water purification plants. The sodium hypochlorite solution reacts with iron ions in the raw water to form ferric hydroxide precipitate and with manganese ions to form manganese dioxide precipitate. The reaction equations are as follows:

[0031] Iron removal: 6Fe2+ + 3CIO- + 3H2O = 2Fe(OH)3↓ + 4Fe3+ + 3CI-

[0032] Manganese removal: Mn2+ + C IO- + 2OH- —— MnO2 + C l- + H2O.

[0033] Please refer to as Figure 3 As shown in the figure, a through hole communicating with the liquid storage cavity 23 is opened at the top of the chemical feeder 21, which provides convenience for liquid level detection. A liquid level float 26 is arranged inside the liquid storage cavity 23, and its top extends out through the through hole. The operator only needs to observe the floating situation of the liquid level float 26 to intuitively master the liquid level change of sodium hypochlorite, so as to supplement it in time, avoid the problem of insufficient medicine addition caused by too low liquid level, and improve the use convenience.

[0034] Please refer to as Figure 2 As shown in the figure, the residual chlorine detection component includes a residual chlorine detector 31. The residual chlorine detector 31 is arranged outside the original water tank 14. In addition, two groups of second joints 32 are respectively arranged on the connecting water pipe and the water passing pipe 13, and a chlorine detection head 33 is arranged inside. These two groups of chlorine detection heads 33 and the chemical feeder 21 are both electrically connected to the residual chlorine detector 31. By detecting the residual chlorine content in the water in real time, the chemical dosage of the chemical feeder 21 is dynamically adjusted to ensure that the addition of sodium hypochlorite is neither excessive nor insufficient. It ensures that the residual chlorine concentration before the water from the original water tank 14 enters the iron and manganese removal filter 11 meets the standard, avoids the damage to the filter media biofilm, and at the same time maximizes the stability and reliability of the water treatment effect.

[0035] Please refer to as Figure 2 、 Figure 4 and Figure 5As shown, in order to effectively deal with the impurity precipitation in the raw water, a precipitation cleaning component is provided in the raw water tank 14. The precipitation cleaning component includes a precipitation collection frame 41, which is arranged at the bottom of the raw water tank 42 opened at the top of the raw water tank 14. The bottom of the raw water tank 42 is also equipped with a guiding inclined surface 43 for guiding the precipitates to gather towards the precipitation collection frame 41. During operation, the impurities will gradually precipitate under the action of water flow, and the guiding inclined surface 43 can effectively concentrate these precipitates into the precipitation collection frame 41, facilitating subsequent cleaning. This not only improves the collection efficiency of the precipitates but also greatly reduces the workload of subsequent cleaning, ultimately ensuring the stable and efficient operation of the entire water treatment device.

[0036] Please refer to as Figure 4 And Figure 5 As shown, in order to further improve the collection and cleaning efficiency of the precipitates, two groups of limit clamping parts 44 are also provided at the top of the raw water tank 42, and there are a lifting rack 45 and a positioning slide rod 46 at the top of the precipitation collection frame 41. The two can slide freely within the limit clamping parts 44, enabling the precipitation collection frame 41 to be lifted up and down as needed. Specifically, a lifting motor 47 is installed on one side of the raw water tank 14, and a gear meshing with the lifting rack 45 is provided on its main shaft. When it is necessary to clean the precipitates, just start the lifting motor 47 to drive the precipitation collection frame 41 to rise by the lifting rack 45 to clean the pollutants collected in the precipitation collection frame 41, improving the cleaning efficiency. In addition, a top cover 48 with a rotatable switch is also provided at the top of the raw water tank 42 to facilitate regular inspection and maintenance of the inside of the tank. At the same time, in order to facilitate the cleaning and disinfection of the entire raw water tank 14, a disinfection and cleaning tank 19 is also installed on one side of the raw water tank 14, which is convenient for regularly cleaning and disinfecting the tank.

[0037] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A device for treating water using sodium hypochlorite, comprising an iron and manganese removal filter (11), characterized in that: A water supply pump (12) is arranged on the top of the iron and manganese removal filter (11). One end of a water pipe (13) is connected to the water supply pump (12). The other end of the water pipe (13) is connected to a raw water tank (14). A water inlet (15) is provided on one side of the raw water tank (14). A first water valve (16) is arranged in the water inlet (15). One end of the first water valve (16) is connected to a pipeline mixer (17) through a connecting water pipe. The other end of the pipeline mixer (17) is provided with a raw water inlet pipe (18) connected to a deep water pump. A dosing component is arranged on one side of the raw water tank (14). The dosing component includes a dosing device (21) that can inject sodium hypochlorite into the raw water inlet pipe (18). The dosing device (21) is arranged on one side of the raw water tank (14). A residual chlorine detection component is arranged on the outside of the raw water tank (14).

2. A device for water treatment using sodium hypochlorite as claimed in claim 1, characterized in that: Two groups of placement brackets (22) are fixedly connected to one side of the raw water tank (14), one group of the placement brackets (22) being provided with the doser (21), and the doser (21) is provided with a liquid storage chamber (23) for containing the sodium hypochlorite.

3. A device for water treatment using sodium hypochlorite as claimed in claim 2, characterized in that: The raw water inlet pipe (18) is provided with a first joint (24), and the dosing device (21) is connected to the first joint (24) via a liquid injection pipe (25).

4. A device for water treatment using sodium hypochlorite as claimed in claim 3, characterized in that: The top of the dosing device (21) is provided with a through hole connected to the liquid storage chamber (23); a liquid level float (26) is arranged in the liquid storage chamber (23); the top of the liquid level float (26) passes through the through hole; and a disinfection cleaning tank (19) is clamped on another group of the placement brackets (22).

5. A device for water treatment using sodium hypochlorite as claimed in claim 1, characterized in that: The residual chlorine detection component comprises a residual chlorine detector (31), the residual chlorine detector (31) is arranged on the outside of the raw water tank (14), the connecting water pipe and the water pipe (13) are both provided with a second joint (32), two groups of the second joints (32) are both penetrated with a chlorine detection head (33), and the two groups of the chlorine detection heads (33) are both electrically connected to the residual chlorine detector (31).

6. A device for water treatment using sodium hypochlorite as claimed in claim 1, characterized in that: A sediment cleaning component is arranged in the raw water tank (14), and the sediment cleaning component comprises a sediment collecting frame (41). A raw water tank (42) is provided at the top of the raw water tank (14), a guide slope (43) is provided at the bottom of the raw water tank (42), and the sediment collecting frame (41) is provided on one side of the guide slope (43).

7. A device for water treatment using sodium hypochlorite as claimed in claim 6, characterized in that: Two groups of limit clamps (44) are arranged on the top of the raw water tank (42), and a lifting rack (45) and a positioning slide bar (46) are arranged on the top of the sediment collection frame (41). The lifting rack (45) and the positioning slide bar (46) are respectively slidably arranged in the two groups of limit clamps (44).

8. A device for water treatment using sodium hypochlorite as claimed in claim 7, characterized in that: The sediment cleaning assembly also includes a lifting motor (47). A mounting bracket is provided on one side of the raw water tank (14). The lifting motor (47) is provided on the mounting bracket. A gear meshing with the lifting rack (45) is provided on the main shaft of the lifting motor (47).

9. A device for water treatment using sodium hypochlorite as claimed in claim 8, characterized in that: Two sets of top covers (48) with rotatable switches are arranged at the opening at the top of the raw water tank (42).

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