A sodium hypochlorite purification device

Abstract

This utility model belongs to the technical field of purification equipment, specifically relating to a sodium hypochlorite purification device, including a purification tank, a heating jacket fitted around the outside of the purification tank, a motor fixedly installed on the top cover of the purification tank, a filter screen installed inside the purification tank, a purification component disposed inside the purification tank, an adsorption cylinder connected to the bottom of the purification tank via a connecting pipe, and a discharge pipe connected to the top of the adsorption cylinder, the discharge pipe being connected to an ion exchange chamber. This sodium hypochlorite purification device, through the use of the heating jacket, purification component, adsorption cylinder, and ion exchange chamber, causes the less soluble NaCl to crystallize and precipitate. Simultaneously, the crystals enter the adsorption cylinder, where the modified resin adsorbent filled in the adsorption cylinder selectively adsorbs NaOH in the solution without reacting with NaClO. The adsorbed solution then enters the ion exchange membrane assembly, achieving complete removal of NaClO3 and improving the purification effect of sodium hypochlorite.

Description

Technical Field

[0001] This utility model relates to the field of purification equipment technology, specifically a sodium hypochlorite purification device. Background Technology

[0002] Sodium hypochlorite (NaClO) is a highly effective disinfectant and bleaching agent, widely used in water treatment, food processing, and pharmaceuticals. Its effectiveness is highly dependent on its purity.

[0003] Traditional evaporation crystallization methods separate NaCl and NaClO by heating and concentrating sodium hypochlorite solution. However, due to limitations in technical principles and operating conditions, this method has significant drawbacks: First, sodium hypochlorite has poor thermal stability and is prone to decomposition during heating, generating impurities such as sodium chloride and sodium chlorate. This not only causes the loss of effective components but also increases the impurity content in the solution. Second, the solubility characteristics of NaOH and NaClO3 are highly similar to those of NaClO. During heating and concentration, the precipitation ranges of the three substances overlap significantly, making it difficult to achieve complete separation by simply controlling the crystallization temperature and concentration. Therefore, a sodium hypochlorite purification device is proposed. Utility Model Content

[0004] The main objective of this invention is to provide a sodium hypochlorite purification device that can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention proposes a sodium hypochlorite purification device, comprising a purification tank, a heating jacket fitted around the outside of the purification tank, a motor fixedly mounted on the top cover of the purification tank, a filter screen installed inside the purification tank, a purification assembly disposed inside the purification tank, an adsorption cylinder connected to the bottom of the purification tank via a connecting pipe, a discharge pipe connected to the top of the adsorption cylinder, and the discharge pipe connected to an ion exchange chamber. The purification assembly includes: A rotating shaft is fixedly connected to the output shaft of a motor, and helical blades are fixedly connected to the outer wall of the rotating shaft; Gear 1, which is penetrated by and fixedly connected to a rotating shaft, meshes with gear 2, and gear 2 meshes with a toothed ring; A fixed cylinder is fixedly connected to the lower side of the toothed ring. An outlet is provided on the outer wall of the fixed cylinder, and an inclined stirring blade is fixedly connected to the outer wall of the fixed cylinder.

[0006] Preferably, the second gear is rotatably connected to the lower side of the lid of the purification tank via a connecting shaft, and the gear ring is rotatably connected to the lower side of the lid of the purification tank.

[0007] Preferably, a fixing ring is fixedly connected to the outer wall of the fixing cylinder, and an elastic scraper is fixedly connected to the outer wall of the fixing ring.

[0008] Preferably, the filter screen has an opening in the middle, the fixing cylinder passes through the opening, the fixing cylinder is rotatably connected to the filter screen, and a discharge pipe is fixedly connected to the filter screen.

[0009] Preferably, the elastic scraper is in contact with the upper surface of the filter screen.

[0010] Preferably, the lid of the purification tank is connected to an inlet pipe, and the lid of the purification tank is provided with a steam outlet.

[0011] Preferably, a heating tube is embedded in the heating jacket, the adsorption cylinder is filled with a modified resin adsorbent, and an ion exchange membrane assembly is fixedly installed in the ion exchange chamber.

[0012] This invention provides a sodium hypochlorite purification device. It has the following beneficial effects: (1) The sodium hypochlorite purification device uses a heating jacket, purification components, adsorption cylinder and ion exchange chamber to heat the temperature of the purification tank to 35-40 degrees Celsius. While avoiding the decomposition of sodium hypochlorite, it causes NaCl with low solubility to crystallize out and enter the adsorption cylinder. The modified resin adsorbent filled in the adsorption cylinder can selectively adsorb NaOH in the solution and does not react with NaClO. The adsorbed solution enters the ion exchange membrane component. Under the action of the electric field, NaClO3 in the solution migrates through the membrane to the dilute hydrochloric acid solution on the other side to generate Cl2 and water, thereby achieving complete removal of NaClO3 and improving the purification effect of sodium hypochlorite.

[0013] (2) The sodium hypochlorite purification device can transport the precipitated NaCl crystals to the discharge port through the spiral blades by using the purification components. After the NaCl crystals are filtered by the filter screen, they can be swept by the elastic scraper to the discharge pipe and discharged. This can effectively reduce the deposition of NaCl crystals at the bottom of the purification tank and facilitate the subsequent discharge of sodium hypochlorite solution.

[0014] (3) The sodium hypochlorite purification device uses a purification component and an elastic scraper to clean the NaCl crystals on the filter screen in real time, avoiding filter screen blockage and reducing the frequency of shutdown for cleaning. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the purification component structure of this utility model; Figure 4 This is a schematic diagram of the filter screen structure of this utility model.

[0017] Explanation of icon numbers: 1. Purification tank; 2. Heating jacket; 3. Motor; 4. Filter screen; 5. Purification assembly; 6. Connecting pipe; 7. Adsorption cylinder; 8. Discharge pipe; 9. Ion exchange chamber; 101. Addition pipe; 102. Steam outlet; 41. Port; 42. Discharge pipe; 51. Rotating shaft; 52. Gear one; 53. Gear two; 54. Gear ring; 55. Spiral blade; 56. Fixed cylinder; 57. Discharge outlet; 58. Stirring blade; 59. Fixed ring; 510. Elastic scraper.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4This utility model proposes a sodium hypochlorite purification device, including a purification tank 1. An inlet pipe 101 is connected to the cover of the purification tank 1. A steam outlet 102 is provided on the cover of the purification tank 1. A heating sleeve 2 is fitted around the outside of the purification tank 1, and a heating tube is embedded in the heating sleeve 2. A motor 3 is fixedly installed on the top cover of the purification tank 1. A filter screen 4 is installed inside the purification tank 1. A purification component 5 is provided inside the purification tank 1. An adsorption cylinder 7 is connected to the bottom of the purification tank 1 through a connecting pipe 6. The adsorption cylinder 7 is filled with a modified resin adsorbent. A discharge pipe 8 is connected to the top of the adsorption cylinder 7 and is connected to an ion exchange chamber 9. An ion exchange unit is fixedly installed in the ion exchange chamber 9. The membrane module, through the use of heating jacket 2, purification component 5, adsorption cylinder 7 and ion exchange chamber 9, can heat the temperature of purification tank 1 to 35-40 degrees Celsius. While avoiding the decomposition of sodium hypochlorite, it causes the less soluble NaCl to crystallize and precipitate. At the same time, the pretreated solution enters the adsorption cylinder 7. The modified resin adsorbent filled in the adsorption cylinder 7 can selectively adsorb NaOH in the solution without reacting with NaClO. The adsorbed solution enters the ion exchange membrane module. Under the action of an electric field, NaClO3 in the solution migrates through the membrane to the dilute hydrochloric acid solution on the other side, generating Cl2 and water, achieving complete removal of NaClO3 and improving the purification effect of sodium hypochlorite.

[0021] In this embodiment of the present invention, the purification component 5 includes a rotating shaft 51, a first gear 52, and a fixed cylinder 56. The rotating shaft 51 is fixedly connected to the output shaft of the motor 3. A spiral blade 55 is fixedly connected to the outer wall of the rotating shaft 51. The first gear 52 is penetrated by the rotating shaft 51 and fixedly connected to the rotating shaft 51. The first gear 52 meshes with a second gear 53, and the second gear 53 meshes with a gear ring 54. The second gear 53 is rotatably connected to the lower side of the cover of the purification tank 1 through a connecting shaft. The gear ring 54 is rotatably connected to the lower side of the cover of the purification tank 1. The fixed cylinder 56 is fixedly connected to the lower side of the gear ring 54. An outlet 57 is provided on the outer wall of the fixed cylinder 56. An inclined stirring blade 58 is fixedly connected to the outer wall of the fixed cylinder 56. The filter screen 4 is in the middle The part has an opening 41, through which a fixed cylinder 56 passes. The fixed cylinder 56 is rotatably connected to the filter screen 4. A discharge pipe 42 is fixedly connected to the filter screen 4. The output shaft of the motor 3 rotates, causing the rotating shaft 51 to rotate, which in turn drives the first gear 52 to rotate, which in turn drives the second gear 53 to rotate, causing the gear ring 54 to rotate. During the rotation of the rotating shaft 51, the spiral blades 55 rotate, conveying the crystallized NaCl at the bottom of the purification tank 1 to the discharge port 57 for discharge. At the same time, during the rotation of the gear ring 54, the fixed cylinder 56 rotates, so that the crystallized NaCl can be evenly discharged onto the filter screen 4. Furthermore, the stirring blades 58 can agitate the solution during the evaporation process, improving the evaporation effect of the solution.

[0022] Furthermore, a fixing ring 59 is fixedly connected to the outer wall of the fixing cylinder 56, and an elastic scraper 510 is fixedly connected to the outer wall of the fixing ring 59. The elastic scraper 510 is in contact with the upper surface of the filter screen 4. When the fixing cylinder 56 rotates, it can drive the fixing ring 59 and the elastic scraper 510 to rotate, sweeping the NaCl crystals to the discharge pipe 42 for discharge. This can effectively reduce the deposition of NaCl crystals at the bottom of the purification tank 1, facilitate the subsequent discharge of sodium hypochlorite solution, and prevent the filter screen 4 from clogging, reducing the frequency of shutdown for cleaning.

[0023] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The standard parts used in this application can all be purchased from the market. The specific connection methods of each part are all connected by conventional means such as riveting and welding that are mature in the prior art. The standard parts are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art.

[0024] In use, the solution is first added to the purification tank 1 through the addition pipe 101. Then, the heating pipe in the heating jacket 2 is activated to heat the temperature of the purification tank 1 to 35-40 degrees Celsius. This prevents the decomposition of sodium hypochlorite while causing the less soluble NaCl to crystallize and precipitate. At the same time, the motor 3 is started, and the output shaft of the motor 3 rotates, causing the rotating shaft 51 to rotate, which in turn drives the gear 1 52 to rotate, which in turn drives the gear 2 53 to rotate, causing the gear ring 54 to rotate. During the rotation of the rotating shaft 51, the spiral blade 55 rotates, conveying the crystallized NaCl at the bottom of the purification tank 1 to the discharge port 57 for discharge. At the same time, during the rotation of the gear ring 54, the fixed cylinder 56 rotates, allowing the crystallized NaCl to be evenly discharged onto the filter screen 4. Simultaneously, the rotation of the fixed cylinder 56 drives the fixed ring 59 and the elastic scraper 510 to rotate, sweeping the NaCl crystals to the discharge pipe 42 for discharge.

[0025] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sodium hypochlorite purification apparatus, comprising a purification tank (1), characterized in that: The purification tank (1) is fitted with a heating jacket (2), a motor (3) is fixedly installed on the top cover of the purification tank (1), a filter screen (4) is installed in the purification tank (1), a purification component (5) is provided in the purification tank (1), an adsorption cylinder (7) is connected to the bottom of the purification tank (1) through a connecting pipe (6), a discharge pipe (8) is connected to the top of the adsorption cylinder (7), and the discharge pipe (8) is connected to the ion exchange chamber (9). The purification component (5) includes: A rotating shaft (51) is fixedly connected to the output shaft of a motor (3), and a spiral blade (55) is fixedly connected to the outer wall of the rotating shaft (51). Gear 1 (52), which is penetrated by a rotating shaft (51) and fixedly connected to the rotating shaft (51), and gear 2 (53) meshes with gear 1 (52), and gear 2 (53) meshes with a toothed ring (54). A fixed cylinder (56) is fixedly connected to the lower side of the toothed ring (54). An outlet (57) is provided on the outer wall of the fixed cylinder (56). An inclined stirring blade (58) is fixedly connected to the outer wall of the fixed cylinder (56).

2. The sodium hypochlorite purification apparatus according to claim 1, characterized in that: The second gear (53) is rotatably connected to the lower side of the cover of the purification tank (1) via a connecting shaft, and the gear ring (54) is rotatably connected to the lower side of the cover of the purification tank (1).

3. The sodium hypochlorite purification apparatus according to claim 1, characterized in that: A fixing ring (59) is fixedly connected to the outer wall of the fixing cylinder (56), and an elastic scraper (510) is fixedly connected to the outer wall of the fixing ring (59).

4. The sodium hypochlorite purification apparatus according to claim 1, characterized in that: The filter screen (4) has an opening (41) in the middle, the fixed cylinder (56) passes through the opening (41), the fixed cylinder (56) is rotatably connected to the filter screen (4), and a discharge pipe (42) is fixedly connected to the filter screen (4).

5. The sodium hypochlorite purification apparatus according to claim 3, characterized in that: The elastic scraper (510) is attached to the upper surface of the filter screen (4).

6. The sodium hypochlorite purification apparatus according to claim 1, characterized in that: The lid of the purification tank (1) is connected to an inlet pipe (101), and the lid of the purification tank (1) is provided with a steam outlet (102).

7. The sodium hypochlorite purification apparatus according to claim 1, characterized in that: A heating tube is embedded in the heating sleeve (2), the interior of the adsorption cylinder (7) is filled with modified resin adsorbent, and an ion exchange membrane assembly is fixedly installed in the ion exchange chamber (9).

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