A pulse sterilizer based on micro-nano structured flow channel and its preparation method

Abstract

The present invention provides a pulse sterilizer based on a micro-nanostructured flow channel. The sterilizer comprises a titanium electrode sheet, an organic glass shell, bolts, and a titanium electrode rod. The organic glass shell is provided with four bolt holes, a titanium rod hole, and a water inlet / outlet. The bolts are located in the bolt holes. The titanium electrode sheet is provided with an electrode sheet center for welding the electrode rod. The titanium electrode rod is welded to the electrode sheet center and passes through the titanium rod hole. This invention achieves miniaturization of high-voltage pulse sterilization devices, making them easier to put into industrial production and more suitable for daily use.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-voltage pulse electric field sterilization, and specifically relates to a pulse sterilizer based on a micro-nano structured flow channel and a preparation method thereof. Background Art

[0002] Drinking water safety is a crucial safeguard for human health and life. Bacterial growth poses a significant challenge to drinking water safety at the point of use, making it a top priority for the development of water disinfection technologies worldwide. Currently, direct drinking water systems installed in universities, hospitals, high-speed rail stations, and other locations often detect excessive total bacterial counts. This may be due to the fact that existing direct drinking water systems use chlorine-containing disinfectants, which, while effective, often lack guaranteed efficacy at the point of use. Chlorine-containing disinfectants are unstable and rapidly self-decompose, resulting in limited sterilization effectiveness after passing through narrow, long drinking water pipes. Furthermore, bacteria found in drinking water dispenser systems, such as psychrophiles and thermophiles, thrive at extreme temperatures and can easily multiply at moderate temperatures. Therefore, developing novel sterilization methods to effectively eliminate these bacteria is crucial for ensuring drinking water safety. Existing sterilization technologies include ultraviolet (UV) disinfection, which lacks post-disinfection capabilities, is prone to secondary contamination, and has difficulty guaranteeing sterilization effectiveness. Sodium hypochlorite disinfection is also unstable and difficult to store, potentially producing inorganic byproducts. High-voltage pulsed electric field sterilization technology is an emerging non-thermal sterilization technology that can generate an instantaneous high-voltage electric field. It has a relatively thorough sterilization effect and has the excellent characteristics of short time, low heat, high efficiency and pollution-free. However, the existing sterilization technology requires extremely high pulse voltage. Although it is widely used in the food field, it is greatly limited in miniaturization. The sterilization devices are large in size and difficult to be put into large-scale industrial production. The extremely high voltage requirement makes it difficult to use in residents' daily lives. Summary of the Invention

[0003] The purpose of the present invention is to provide a pulse sterilizer based on a micro-nano structured flow channel and a preparation method thereof.

[0004] The technical solutions of the present invention are as follows:

[0005] A pulse sterilizer based on a micro-nano structured flow channel, the sterilizer consisting of a titanium electrode sheet, an organic glass shell, a bolt and a titanium electrode rod;

[0006] Among them, the organic glass shell is provided with four bolt holes, a titanium rod hole and a water inlet / outlet; the bolts are arranged on the bolt holes; the titanium electrode sheet is provided with an electrode sheet center for electrode rod welding, and the titanium electrode rod is welded at the electrode sheet center and passes through the titanium rod hole.

[0007] Furthermore, the titanium electrode sheet is cut with micro grooves of a certain size.

[0008] Furthermore, the organic glass shell is provided with an O-ring groove and a recessed portion, the titanium electrode sheet is installed and fixed in the recessed portion, and a portion of the volume of the O-ring is installed in the O-ring groove.

[0009] Furthermore, the organic glass shell is provided with a quick-connect joint interface with a thread, and the quick-connect straight-through joint is installed on the quick-connect joint interface and connected to the water inlet / outlet.

[0010] Furthermore, the organic glass shells are fitted together from top to bottom, and another portion of the volume of the O-ring enters the O-ring groove of the other organic glass shell under the pressure of the bolts and nuts.

[0011] The present invention also provides a method for preparing a pulse sterilizer based on a micro-nanostructured flow channel, the method comprising:

[0012] Electrode sheet material processing: Select two titanium electrode sheets and use wire cutting to cut out multiple transparent flow-guiding micro-grooves;

[0013] Organic glass shell processing: Two acrylic glass plates are processed separately. The middle area of ​​each rectangular acrylic plate is divided into a groove and a concave area at a certain depth. Four bolt holes are set around the shell. The two glass plates are respectively equipped with an inlet / outlet and a threaded quick-connect interface at one corner of the concave part. A transparent titanium electrode rod hole is set in the middle of the glass shell.

[0014] Device assembly: The quick-connect straight-through connector is installed on the quick-connect connector interface and tightly connected to the water inlet / outlet; two titanium electrode sheets are used as the positive and negative electrode sheets for applying voltage to the device, which are respectively arranged in the recessed parts of the organic glass shell and the two are tightly fitted. Four bolts are arranged in four bolt holes to fix the two organic glass shells, and the O-ring is arranged in the milled glass groove gap of the organic glass shell. The other part of the volume of the O-ring enters the glass groove gap of the other organic glass shell through the mechanical extrusion of the organic glass shell by the bolts and nuts.

[0015] Furthermore, the recessed area is square.

[0016] Furthermore, the diameter of the O-ring is greater than the width of the glass groove gap.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The present invention realizes the miniaturization of high-voltage pulse sterilization devices, which is easier to put into industrial production and fits in with daily life; the present invention utilizes electric energy for processing, has low energy consumption and low pollution, and conforms to the trend of energy utilization; the electric field has extremely strong penetration, overcomes the unevenness of sterilization treatment of some other technologies, and has a wide range of applications, meeting the sterilization needs of achieving clean water resources and healthy drinking water for people; the high-intensity electric field is concentrated in the sterilization treatment area, the electric field strength distribution is relatively uniform, the electric field distribution characteristics are ideal, and the sterilization effect in the treatment area is more significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings illustrate various embodiments generally by way of example and not limitation, and together with the description and claims, serve to explain embodiments of the invention. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive of the embodiments of the present apparatus or method.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of the titanium electrode sheet of the present invention is shown;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of the titanium electrode sheet of the present invention is shown;

[0022] Figure 3 Shows a schematic diagram of the three-dimensional structure of the organic glass shell of the present invention

[0023] Figure 4 shows a first overall structural schematic diagram of the present invention;

[0024] Figure 5 shows a second overall structural schematic diagram of the present invention;

[0025] Figure 6 A schematic diagram of the top view of the structure of the present invention is shown;

[0026] Figure 7 It shows a schematic diagram of the front cross-sectional structure of the present invention,

[0027] Among them, 1-titanium electrode sheet, 2-plexiglass shell, 3-bolt, 4-titanium electrode rod, 11-electrode sheet center, 12-guide micro groove, 13-thickness of titanium electrode sheet, 21-bolt hole, 22-quick connect connector interface, 23-titanium rod hole, 24-acrylic plate side, 25-water inlet / outlet, 26-O-ring groove, 27-O-ring recess, 28-thickness of O-ring recess. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] The embodiment of the present invention provides a pulse sterilizer based on a micro-nanostructured flow channel and a preparation method thereof;

[0030] The sterilizer comprises the following components: a titanium electrode sheet 1, on which microgrooves 12 of a certain size are cut;

[0031] The organic glass shell 2 is provided with four bolt holes 21 , a titanium rod hole 23 and a water inlet / outlet 25 ; the bolt 3 is provided on the bolt hole 21 ; the titanium electrode rod 4 is provided on the titanium rod hole 23 .

[0032] The titanium electrode sheet 1 is provided with an electrode sheet center 11 for electrode rod welding. The titanium electrode rod 4 is welded here and passes through the titanium rod hole 23 .

[0033] The organic glass housing 2 is provided with an O-ring groove 26 and a recess 27 . The titanium electrode sheet 1 is installed and fixed in the recess 27 . A portion of the O-ring is installed in the O-ring groove 26 .

[0034] The organic glass shell 2 is provided with a quick-connect joint interface 22 with threads. The quick-connect straight-through joint is installed on the quick-connect joint interface 22 and is tightly connected to the water inlet / outlet 25.

[0035] The present invention is composed of two organic glass shells 2 that are bonded together from top to bottom. The other part of the volume of the O-ring enters the O-ring groove of the other organic glass shell under the pressure of the bolt 3 and the nut.

[0036] The two plexiglass shells fit tightly together, and the O-ring blocks the gap between the two plexiglass plates and the outside world.

[0037] The method comprises:

[0038] (1) Electrode material processing: Select two titanium electrode sheets 1 with an area of ​​50*50 (mm 2 ), a plurality of transparent flow-guiding micro-grooves 12 are cut out on the titanium sheet by wire cutting;

[0039] (2) Processing of organic glass shell: Process two acrylic glass plates 2 at a height of about 30mm, with an area of ​​80*80mm 2Each rectangular acrylic plate has a groove 26 and a recess 27 in the middle of one side at a certain depth. The recess is square and has four bolt holes 21 around the shell. The two glass plates have water inlet / outlet 25 and threaded quick-connect connector 22 in one corner of the recess. A transparent titanium electrode rod hole 23 is set in the middle of the glass shell.

[0040] (3) Device assembly: The quick-connect straight-through connector is installed on the quick-connect connector interface 22 and is tightly connected to the water inlet / outlet. Two titanium electrode sheets 1 are used as the positive and negative electrode sheets for applying voltage to the device. They are respectively placed in the recess 27 of the organic glass shell 2 and the two are tightly fitted. There are micro grooves 12 cut by wire cutting on them for passing water to the processing chamber in the center of the electrode. Four bolts 3 are set in four bolt holes 21 to fix the two organic glass shells 2 and assemble the device. The O-type sealing ring is set in the glass groove gap 26 milled on the acrylic organic glass shell 2. The diameter of the O-type sealing ring is slightly larger than the width of the groove gap, so that part of the volume of the O-type sealing ring enters the glass groove gap 26 through mechanical extrusion, and the other part of the volume of the O-type sealing ring enters the glass groove gap 26 of the other organic glass shell 2 through the mechanical extrusion of the organic glass shell 2 by the bolts and nuts 3. At this time, it plays a sealing role for the gap between the two organic glass shells 2.

[0041] like Figure 2 As shown, it is a schematic diagram of the structure of the organic glass shell 2. The organic glass shell 2 is provided with a quick-connect joint interface 22 with a thread. The thread of the quick-connect joint interface 22 matches the quick-connect joint with a 2-point external thread*2-point pipe opening, and can fit tightly after assembly. The 2-point quick-connect joint is matched with a 2-point PE water purification pipe. One side of the water pipe is connected to the water source or faucet, and the other side is connected to the quick-connect joint, which can achieve a stable water supply to the central processing chamber of the device at a certain water flow rate.

[0042] The thickness 13 of the titanium electrode sheet is slightly smaller than the thickness 28 of the recess 27 of the organic glass shell. There is a certain thickness difference H between the two. When the two organic glass shells 2 are assembled together with the bolts 3, the spatial height of the central water resource sterilization treatment chamber is twice the thickness difference H.

[0043] Workflow:

[0044] Connect one side of the PE water pipe to the faucet and the other side to the quick-connect connector. Water flows into the water inlet. Use a pulse power generator to apply pulse power to the electrode rod to perform instantaneous pulse electric field sterilization on the inflowing water source. The water resources flowing through the central treatment chamber flow out through the outlet pipe.

[0045] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A pulse sterilizer based on micro-nano structured flow channel, characterized in that: The sterilizer is composed of a titanium electrode sheet, an organic glass shell, a bolt and a titanium electrode rod; The organic glass shell is provided with four bolt holes, a titanium rod hole and a water inlet / outlet; the bolts are provided on the bolt holes; the titanium electrode sheet is provided with an electrode sheet center for welding the electrode rod, the titanium electrode rod is welded at the electrode sheet center and passes through the titanium rod hole; the titanium electrode sheet is cut with a micro groove of a certain size; the area of ​​the titanium electrode sheet is 50*50mm 2 .

2. The pulse sterilizer based on micro-nanostructured flow channel according to claim 1, characterized in that: The organic glass shell is provided with an O-ring groove and a recessed portion, the titanium electrode sheet is installed and fixed in the recessed portion, and a portion of the volume of the O-ring is installed in the O-ring groove.

3. The pulse sterilizer based on micro-nanostructured flow channel according to claim 1, characterized in that: The organic glass shell is provided with a quick-connect joint interface with a thread, and the quick-connect straight-through joint is installed on the quick-connect joint interface and connected to the water inlet / outlet.

4. The pulse sterilizer based on micro-nanostructured flow channel according to claim 1, characterized in that: The organic glass shells are fitted together up and down, and the other part of the volume of the O-ring enters the O-ring groove of the other organic glass shell under the pressure of the bolt and the nut.

5. A method for preparing a pulse sterilizer based on a micro-nanostructured flow channel, characterized in that: The method comprises: Electrode sheet material processing: Select two titanium electrode sheets and use wire cutting to cut out multiple transparent flow-guiding micro-grooves; Organic glass shell processing: Two acrylic glass plates are processed separately. The middle area of ​​each rectangular acrylic plate is divided into a groove and a concave area at a certain depth. Four bolt holes are set around the shell. The two glass plates are respectively equipped with an inlet / outlet and a threaded quick-connect interface at one corner of the concave part. A transparent titanium electrode rod hole is set in the middle of the glass shell. Device assembly: The quick-connect straight-through connector is installed on the quick-connect connector interface and tightly connected to the water inlet / outlet; two titanium electrode sheets are used as the positive and negative electrode sheets for applying voltage to the device, which are respectively arranged in the recessed parts of the organic glass shell and the two are tightly fitted. Four bolts are arranged in four bolt holes to fix the two organic glass shells, and the O-ring is arranged in the milled glass groove gap of the organic glass shell. The other part of the volume of the O-ring enters the glass groove gap of the other organic glass shell through the mechanical extrusion of the organic glass shell by the bolts and nuts.

6. The method for preparing a pulse sterilizer based on a micro-nanostructured flow channel according to claim 5, characterized in that: The recessed area is square.

7. The method for preparing a pulse sterilizer based on a micro-nanostructured flow channel according to claim 5, characterized in that: The diameter of the O-ring is greater than the width of the glass groove gap.

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