A device that can simultaneously achieve strong cleaning, dry sterilization, wet sterilization and drying

By designing air-water mixers and devices surrounding the injection system, the complex operation of multiple equipment is solved, and multi-functional cleaning, sterilization and drying are achieved, reducing costs and safety hazards.

CN115970013BActive Publication Date: 2025-08-19ZHENGZHOU JINNENG MECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202211502873.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-29
Publication Date
2025-08-19
Estimated Expiration
2042-11-29

AI Technical Summary

Technical Problem

In the prior art, there are many types of cleaning, drying and sterilization equipment, complex operation and management, safety hazards, and it is difficult to simplify the structure and reduce costs under conventional conditions.

Method used

Design a device that includes an air intake pipeline and a distilled water intake pipeline, and uses a dielectric air-water mixer and a surround injection system, combined with an electric heater and a flow regulating valve to achieve multi-functional operation of powerful cleaning, dry sterilization, wet sterilization and drying.

Benefits of technology

A variety of cleaning, sterilization and drying methods are realized through one device, reducing equipment costs and operational complexity, and improving safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A device that can simultaneously achieve strong cleaning, dry sterilization, wet sterilization and drying, which includes an air inlet pipeline and a distilled water inlet pipeline, wherein the air inlet pipeline is connected to the horizontal inlet of a pressure diffuser air-water mixer, and the distilled water inlet pipeline is connected to the vertical interface of the pressure diffuser air-water mixer; the horizontal outlet of the pressure diffuser air-water mixer is connected to the output pipeline, and an electric heater, a flow regulating valve and a surround spray system are sequentially arranged on the output pipeline, and the surround spray system is located in the cleaning, disinfection and drying chamber. The beneficial effects of the present invention are: it can be achieved by using one device to provide water cleaning, air blowing, spray strong cleaning, dry heat, wet heat two different sterilization methods and air drying, heating drying and other different drying methods according to different needs. It is also possible to provide sterilization parameters of different temperatures and pressures according to needs, so as to achieve the goal of one device with multiple functions.
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Description

Technical Field

[0001] The invention relates to a method for cleaning, sterilizing and drying medical equipment, experimental raw materials and other containers and heat exchangers, and more specifically to a method for simultaneously achieving strong cleaning, dry sterilization, wet sterilization and drying. Background Art

[0002] At present, cleaning, drying and sterilization equipment are widely used in many fields such as medical care, biopharmaceuticals, process manufacturing, and laboratories.

[0003] Cleaning methods include water washing, air purging, and spray cleaning. Drying generally involves air drying or heat drying. Sterilization primarily involves dry heat sterilization and moist heat sterilization. Moist heat sterilization and dry heat sterilization each have their own characteristics and overlapping but distinct applications. Their sterilization mechanisms differ. Dry heat sterilization primarily kills microorganisms through oxidation at high temperatures. Moist heat sterilization irreversibly destroys enzymes, structural proteins, and nucleic acids within microorganisms, causing protein coagulation and denaturation, leading to microbial death. Dry heat sterilization typically involves heating at 160-180°C for two hours, killing all microorganisms, including spore-forming bacteria. It is primarily used for sterilizing glassware and porcelain. Moist heat sterilization, on the other hand, typically operates at 60-134°C for 4-60 minutes, achieving varying sterilization results. It's difficult to completely replace moist heat sterilization with dry heat sterilization.

[0004] For these reasons, multiple cleaning, drying, and sterilization equipment are often required to be used simultaneously to meet the different cleaning, sterilization, and drying requirements of various raw materials, instruments, and devices. This leads to a wide variety of equipment, making operation, maintenance, and management difficult, and prone to potential safety hazards.

[0005] CN202097151U discloses a two-phase flow shock wave device for cleaning and rust removal of object surfaces. It includes a fluid supply mechanism, a connecting pipe, a regulating valve, and a shock wave generator, which are sealed and fixedly connected in sequence. An air hole communicating with the injection cavity is provided on the surface outside the injection cavity of the shock wave generator. The shock wave generator includes a water nozzle and a convergent-divergent nozzle. The water nozzle is sealed and fixedly connected to the inlet end of the convergent-divergent nozzle, and the tapered end of the water nozzle extends into the injection cavity. This scheme uses water and air as working media, takes advantage of the low-speed characteristics of two-phase flow, designs a shock wave generator, realizes two-phase supersonic flow and generates shock waves, and completes the treatment of the object surface through shock wave effect and cavitation effect.

[0006] The above scheme considers using water to drain air. Its basic principle is a "water jet vacuum pump," which uses the energy of a rapidly ejected water stream to draw air from a chamber, thereby creating a negative pressure inside the chamber and drawing in external air. Based on this principle, to draw the same volume of air, a significantly larger amount of drainage material (water) must be used than the material being drawn (air). This means that tens of cubic meters (weighing tens of tons) of water are needed to draw out tens of cubic meters of air (weighing tens of kilograms). The primary cleaning factor is the water itself, as well as the air bubbles mixed in it. To achieve the conditions for generating shock waves, the water must be heated on a large scale.

[0007] For this reason, the above solution requires the installation of a suction chamber. After suction, the liquid passes through a Laval nozzle (a converging-diverging nozzle) to accelerate mixing (the converging section) and then expand and separate (the diverging section). Therefore, this solution requires the expansion of the suction chamber and other equipment, and consumes a large amount of drainage material (water). Summary of the Invention

[0008] The technical problem to be solved by the invention is: how to simplify the structure and reduce the cost under normal conditions, so as to provide a device that can simultaneously achieve strong cleaning, dry sterilization, wet sterilization and drying.

[0009] The technical solution of the present invention is specifically as follows:

[0010] A device that can simultaneously achieve strong cleaning, dry sterilization, wet sterilization and drying, comprising an air inlet pipeline and a distilled water inlet pipeline, wherein the air inlet pipeline is connected to the horizontal inlet of a pressure diffuser air-water mixer, and the distilled water inlet pipeline is connected to the vertical interface of the pressure diffuser air-water mixer; the horizontal outlet of the pressure diffuser air-water mixer is connected to the output pipeline, and an electric heater, a flow regulating valve and a surrounding spray system are sequentially arranged on the output pipeline, and the surrounding spray system is located in the cleaning, disinfection and drying chamber.

[0011] An air compressor or fan and a compressed air switching valve are sequentially arranged on the air intake pipeline, and the outlet of the compressed air switching valve is connected to the horizontal inlet of the diffuser type air-water mixer through a pipeline; a distilled water switching valve is arranged on the distilled water inlet pipeline, and the outlet of the distilled water switching valve is also connected to the vertical interface of the diffuser type air-water mixer through a pipeline; the air compressor is not equipped with a cooling device.

[0012] The diffuser type air-water mixer is composed of a convergent-divergent nozzle and a pipe assembly located therein; wherein the convergent-divergent nozzle is composed of a large convergent tube and an expansion tube, and the pipe assembly is inserted into the connection between the large convergent tube and the expansion tube; the pipe assembly includes a small insertion diameter pipe, and the pipe outlet of the small insertion diameter pipe is toward the expansion tube side of the convergent-divergent nozzle.

[0013] The small-diameter insertion pipeline includes a vertical pipe and an elbow located at an end of the vertical pipe, wherein the elbow faces the expansion pipe side.

[0014] A small shrink tube is welded to the pipe outlet of the elbow.

[0015] The cleaning, disinfection and drying chamber is connected to an exhaust system and a drainage system; wherein, the exhaust system includes a filtering device located at the top of the cleaning, disinfection and drying chamber, and the gas is connected to the exhaust valve and the safety valve respectively after passing through the filtering device; the drainage system includes a steam trap located at the bottom of the cleaning, disinfection and drying chamber, and the steam trap is connected to the drain valve.

[0016] The bottom of the cleaning, disinfecting and drying chamber is provided with a slope, and a drain valve and a steam trap are provided at the lowest point of the slope.

[0017] Pressure and temperature measuring points and heating resistors are arranged on the side walls of the cleaning, disinfecting and drying chamber.

[0018] The electric heater is an instant heater that can heat water or air.

[0019] The present invention has the following advantages: a single device can be used to provide, according to different needs, different sterilization methods: water washing, air purging, spray cleaning, dry heat and wet heat, as well as different drying methods: air drying and heat drying. Sterilization parameters of different temperatures and pressures can also be provided as needed, achieving the goal of a single device with multiple functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall structural diagram of the present invention;

[0021] Figure 2 1 is a structural diagram of the pressure-expanding air-water mixer of the present invention;

[0022] Figure 3 This is a schematic diagram of the present invention. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0025] like Figure 1 As shown, a device that can simultaneously achieve strong cleaning, dry sterilization, wet sterilization and drying includes an air inlet pipeline and a distilled water inlet pipeline, wherein the air inlet pipeline is connected to the horizontal inlet of the pressure diffuser air-water mixer 15, and the distilled water inlet pipeline is connected to the vertical interface of the pressure diffuser air-water mixer 15; the horizontal outlet of the pressure diffuser air-water mixer 15 is connected to the output pipeline, and an electric heater 4, a flow regulating valve 5 and a surrounding injection system 6 are sequentially arranged on the output pipeline, and the surrounding injection system 6 is located in the cleaning, disinfection and drying chamber 7.

[0026] Among them, an air compressor or fan 1 and a compressed air switching valve 2 are arranged in sequence on the air intake pipeline; a distilled water switching valve 3 is arranged on the distilled water inlet pipeline. In this way, the outlet of the air compressor or fan 1 is connected to the compressed air switching valve 2, and the outlet of the compressed air switching valve 2 is connected to the horizontal inlet of the diffuser type air-water mixer 15 through a pipeline. At the same time, the outlet of the distilled water switching valve 3 is also connected to the vertical interface of the diffuser type air-water mixer 15 through a pipeline. During operation, the air intake pipeline and the distilled water inlet pipeline, these two pipelines can be opened separately or at the same time to meet different needs. The above-mentioned compressed air switching valve 2 and pipeline and distilled water switching valve 3 use shut-off valves with pressure regulating function.

[0027] It should be noted that the above-mentioned air compressor is not provided with a cooling device, and the outlet temperature of the compressed air of the air compressor is utilized.

[0028] Furthermore, the diffuser-type air-water mixer 15 consists of a convergent-divergent nozzle (Laval nozzle) and a pipe assembly positioned therein. The convergent-divergent nozzle (Laval nozzle) consists of a large converging tube 15a and an expanding tube 15b, with the pipe assembly inserted into the connection between the large converging tube 15a and the expanding tube 15b. The pipe assembly includes a small insertion diameter pipe 15c, the outlet of which faces the expanding tube 15b side of the convergent-divergent nozzle (Laval nozzle).

[0029] Furthermore, the small insertion diameter pipe 15c includes a vertical pipe and an elbow at the end of the vertical pipe, the elbow facing the expansion pipe 15b. Furthermore, a small shrink pipe 15d is welded to the pipe outlet of the elbow.

[0030] It should be noted that the diameters of the small insertion diameter pipe 15c, the elbow and the small contraction tube 15d are much smaller than the diameter of the convergent-divergent nozzle.

[0031] In addition, the large shrinkable tube 15a has a large diameter on the left side and a small diameter on the right side, and shrinks from the left side to the right side; the expansion tube 15b has a small diameter on the left side and a large diameter on the right side, and expands from the left side to the right side; the small shrinkable tube 15d has a large diameter on the left side and a small diameter on the right side, and shrinks from the left side to the right side.

[0032] Furthermore, the surrounding spray system 6 is located around the interior of the cleaning, disinfecting and drying chamber 7, that is, the surrounding spray system 6 is set up on the top, bottom, left and right sides of the cleaning, disinfecting and drying chamber. The surrounding spray system 6 includes a connecting pipe and a nozzle arranged on the pipe, and the nozzle is located in the cleaning, disinfecting and drying chamber.

[0033] Furthermore, the cleaning, disinfection, and drying chamber 7 is connected to an exhaust system and a drainage system; the exhaust system includes a filter device 12 located at the top of the cleaning, disinfection, and drying chamber 7. After the gas passes through the filter device 12, it is connected to the exhaust valve 9 and the safety valve 10 respectively. The drainage system includes a steam trap 11 located at the bottom of the cleaning, disinfection, and drying chamber 7, which is connected to the drain valve 8.

[0034] Furthermore, the bottom of the cleaning, disinfecting and drying chamber 7 is provided with a slope, and a drain valve 8 and a steam trap 11 are provided at the lowest point of the slope.

[0035] Furthermore, a pressure and temperature measuring point 13 and a heating resistor 14 are provided on the side wall of the cleaning, disinfecting and drying chamber 7 .

[0036] Furthermore, the electric heater 4 is an instantaneous heater capable of heating water or air. After the distilled water, compressed air, or atomized mixture is heated to the desired temperature by the electric heater 4, a flow control valve 5 is gradually opened, and the mixture is sprayed into the cleaning, disinfection, and drying chamber 7 via the surround spray system 6. The flow control valve 5 adjusts its opening according to the desired pressure and temperature of the cleaning, disinfection, and drying chamber 7.

[0037] When the pressure in the cleaning, disinfecting and drying chamber 7 exceeds the design value, the exhaust valve 9 is opened to ensure that the pressure in the cleaning and drying chamber 7 does not exceed the design value. If the pressure continues to rise and reaches a certain pressure, the safety valve 10 is opened to release the pressure. At the same time, the compressed air switching valve 2, the distilled water switching valve 3 and the electric heater 4 are all closed.

[0038] The opening of the flow regulating valve 5 is controlled by the signal feedback from the temperature and pressure measuring point 13. When the temperature and pressure are insufficient, the cleaning, disinfecting and drying chamber 7 can be auxiliary heated by the heating resistor 14 until the temperature and pressure requirements are met.

[0039] It should be noted that, for the convenience of control, the above-mentioned compressed air switching valve 2, distilled water switching valve 3, electric heater 4, flow regulating valve 5, drain valve 8, steam exhaust valve 9, safety valve 10, steam trap 11, pressure and temperature measuring point 13 and heating resistor 14 are all connected to the control system, and the control principle is a technology well known to those skilled in the art.

[0040] The working principle and working process of the present invention are:

[0041] When preparing for cleaning and maintenance, for ordinary cleaning, open the distilled water switching valve 3 alone for water cleaning, or open the air compressor or fan 1 alone, and the compressed air switching valve 2 for air blowing. The air compressor 1 is not equipped with a cooling device, and the compressed air outlet temperature can be fully utilized.

[0042] For instruments or containers with many stains and impurities or high cleaning requirements, first, the air compressor 1 and the compressed air switching valve 2 are turned on at the same time, and then the distilled water switching valve 3 is turned on. The distilled water and high-temperature compressed air can pass through the diffuser air-water mixer 15 to atomize and heat the water. When the conditions are met, the compressed air and water pass through the diffuser air-water mixer, and the local sound speed is greatly reduced due to the occurrence of gas-liquid two-phase flow, so that a strong transonic shock wave effect can be generated in the air-water mixture at a lower speed, further fully mixing and atomizing the compressed air and water, and increasing the temperature and pressure of the gas-water mixture. At the same time, since the air compressor 1 is not equipped with a cooling device, the compressed air outlet temperature can be fully utilized. According to the Dalton partial pressure principle, the atomized water will be heated and water vapor will be formed at a lower temperature, thereby producing a mixture of air, atomized water, and water vapor, which has a strong cleaning ability and can remove stubborn impurities.

[0043] During sterilization, two different sterilization methods, dry heat and wet heat, can be selected based on demand. If dry heat sterilization is selected, the air compressor or blower 1 is turned on, the compressed air switching valve 2 is activated, and the distilled water switching valve 3 is closed. The compressed air switching valve 2 adjusts the compressed air pressure based on feedback from the pressure measuring point 14 on the cleaning, disinfecting, and drying chamber 7. The compressed air enters the electric heater 4 for heating, and the power of the electric heater 4 is adjusted based on the temperature and pressure measuring point 13 on the cleaning, disinfecting, and drying chamber 7. The flow control valve 5 adjusts its opening based on the pressure and temperature measuring point 13 on the cleaning, disinfecting, and drying chamber 7. The exhaust valve 9 opens and closes accordingly based on the pressure feedback from the pressure and temperature measuring point 13 on the cleaning, disinfecting, and drying chamber 7 to control the pressure within the cleaning, disinfecting, and drying chamber 7. Dry air circulation maintains the temperature within the cleaning, disinfecting, and drying chamber 7 to achieve the desired sterilization effect. If the temperature and pressure are insufficient, the heating resistor 14 can be used to provide auxiliary heating to the cleaning, disinfecting, and drying chamber 7 until the required temperature and pressure are reached.

[0044] If moist heat sterilization is selected, the compressed air switching valve 2 is closed and the distilled water switching valve 3 is opened. The distilled water switching valve 3 adjusts the distilled water pressure based on the required hot water pressure or steam pressure in the cleaning, disinfection, and drying chamber 7 according to feedback from pressure measuring point 14. The distilled water enters the electric heater 4 for heating, and the heater power is adjusted based on pressure and temperature measuring point 13 in the cleaning, disinfection, and drying chamber 7. Hot water of varying temperatures or saturated steam at corresponding water pressures can be generated according to sterilization requirements. The flow control valve 5 adjusts its opening based on pressure and temperature measuring point 13 in the cleaning, disinfection, and drying chamber 7. The exhaust valve 9 opens and closes based on pressure feedback from pressure and temperature measuring point 13 to control the pressure in the cleaning, disinfection, and drying chamber 7 from exceeding the specified pressure. The drain valve 8 and steam trap 11 open to discharge condensed water from the steam, ensuring that the temperature and pressure in the cleaning, disinfection, and drying chamber 7 are maintained to achieve the desired sterilization effect. If the temperature and pressure are insufficient, the heating resistor 14 can be used to provide auxiliary heating to the cleaning, disinfection, and drying chamber 7 until the required temperature and pressure are reached.

[0045] If the mixture moist heat sterilization method is selected, the air compressor 1 and the compressed air switching valve 2 are first turned on, and then the distilled water switching valve 3 is turned on. Since the air compressor 1 does not have a cooling device, the compressed air outlet temperature can be fully utilized. The distilled water and high-temperature compressed air can be atomized and heated by the diffuser air-water mixer 15. When the conditions are met, the compressed air and water pass through the diffuser air-water mixer 15, and the local sound speed is greatly reduced due to the occurrence of gas-liquid two-phase flow. Therefore, a strong transonic shock wave effect can be generated in the air-water mixture at a lower speed, further fully mixing and atomizing the compressed air and water, and increasing the temperature and pressure of the gas-water mixture. At the same time, according to the Dalton partial pressure principle, the atomized water is heated to form water vapor at a lower temperature, thereby generating a mixture of air, atomized water, and water vapor, which enters the electric heater 4 for heating. The heater power is adjusted according to the pressure and temperature measuring point 13 on the cleaning and disinfection drying chamber 7. Based on Dalton's principle of partial pressure, a mixture of air and water vapor can form within the cleaning, disinfection, and drying chamber 7, rather than just water vapor, even at low heating temperatures. This allows for the generation of superheated steam at the appropriate partial pressure, without condensation, based on sterilization requirements. Drain valve 8 and steam trap 11 are closed to maintain the temperature and pressure within the cleaning, disinfection, and drying chamber 7 to achieve the desired sterilization effect. If the temperature and pressure are insufficient, heating resistor 14 can be used to provide auxiliary heating to the cleaning, disinfection, and drying chamber 7 until the required temperature and pressure are reached.

[0046] This patent application differs from the referenced documents in the background art. The referenced documents utilize a drainage relationship, using water to drain air. The basic principle is a "water jet vacuum pump," which utilizes the energy of rapidly ejected water to draw air from the chamber, thereby creating a negative pressure within the chamber and drawing in external air. Based on this principle, to draw the same volume of air, a drainage medium (water) significantly exceeding the volume of the object being drawn (air) must be used. This means that tens of cubic meters (weighing tens of tons) of water are required to draw tens of cubic meters of air (weighing tens of kilograms). The primary cleaning element is still the water and the bubbles mixed in it. To achieve the conditions for generating shock waves, the water must be heated on a large scale.

[0047] The medium of this patent application is a mixture of air, steam and water (referred to as gas-liquid two-phase flow or vapor-liquid two-phase flow). In this medium, the speed of sound will drop sharply to tens of meters per second. Therefore, it has the conditions to reach supersonic speed and generate shock waves under conventional speed conditions. At the same time, it also requires the cooperation of many factors such as pressure, environment (gas-liquid two-phase flow), and temperature.

[0048] Therefore, this patent application does not involve drainage. Its basic principle is "the location conditions required to generate shock waves," that is, creating the objective conditions that can generate shock waves and utilizing the shock wave phenomenon to achieve sufficient atomization and mixing of water. At the same time, because the mixture mainly consists of compressed air and a small portion is atomized water, according to the Dalton partial pressure principle, the water vapor partial pressure is low, and steam can be generated at a relatively low temperature (tens of degrees). The compressed air outlet temperature can be fully utilized to heat the atomized water, forming water vapor at a relatively low temperature, thereby producing a mixture of air, atomized water, and water vapor.

[0049] Based on its principle, there is no drainage relationship. It mainly uses high-temperature compressed air mixed with a small amount of atomized water and water vapor. Its main cleaning method is to use a mixture of air, atomized water and water vapor. The mixture is used as the main cleaning tool, which greatly saves water and energy.

[0050] Based on this, this patent application designs a Laval nozzle (a converging and diverging nozzle), and the distilled water inlet pipe is inserted into the connection between the large convergent tube 15a and the diverging tube 15b, that is, the throat of the converging and diverging nozzle. The flow velocity in this part is the highest, and the compressed air is first accelerated to above the critical sound speed of the mixture (tens of meters / second). At the same time, the distilled water inlet pipe inserted into the connection is also necked to accelerate it to above the critical sound speed of the mixture (tens of meters / second). At this time, since the air compressor is not equipped with a cooling device, the compressed air outlet temperature is relatively high (about 110 degrees), which will heat the atomized water. At the same time, according to the Dalton partial pressure principle, the water vapor partial pressure is relatively low, and steam can be generated at a relatively low temperature (tens of degrees), thereby forming the necessary environment for generating shock waves (gas-liquid two-phase flow). At this time, when many conditions of speed, pressure, environment (gas-liquid two-phase flow), and temperature are met, a shock wave generating section is formed, which is located at the rear of the throat section, generating a mixture of air, atomized water, and water vapor.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, and these should also be regarded as the scope of protection of the present invention.

Claims

1. A device capable of simultaneously achieving powerful cleaning, dry sterilization, wet sterilization and drying, characterized in that: It comprises an air inlet pipeline and a distilled water inlet pipeline, wherein the air inlet pipeline is connected to the horizontal inlet of a pressure-expanding air-water mixer (15), and the distilled water inlet pipeline is connected to the vertical interface of the pressure-expanding air-water mixer (15); the horizontal outlet of the pressure-expanding air-water mixer (15) is connected to an output pipeline, and an electric heater (4), a flow regulating valve (5) and a surrounding spray system (6) are sequentially arranged on the output pipeline, and the surrounding spray system (6) is located in a cleaning, disinfecting and drying chamber (7); An air compressor and a compressed air switching valve (2) are sequentially arranged on the air intake pipeline, and the air compressor is not provided with a cooling device; The diffuser-type air-water mixer (15) is composed of a convergent-divergent nozzle and a pipe assembly located therein; wherein the convergent-divergent nozzle is composed of a large convergent tube (15a) and an expansion tube (15b), and the pipe assembly is inserted into the connection between the large convergent tube (15a) and the expansion tube (15b); the pipe assembly includes a small insertion diameter pipe (15c), and the pipe outlet of the small insertion diameter pipe (15c) is oriented toward the expansion tube (15b) side of the convergent-divergent nozzle; The small insertion diameter pipe (15c) includes a vertical pipe and an elbow at the end of the vertical pipe, the elbow facing the expansion pipe (15b); A small shrink tube (15d) is welded to the pipe outlet of the elbow.

2. The device capable of simultaneously achieving strong cleaning, dry sterilization, wet sterilization and drying according to claim 1, characterized in that: The outlet of the compressed air switching valve (2) is connected to the horizontal inlet of the pressure-expanding air-water mixer (15) through a pipeline; a distilled water switching valve (3) is provided on the distilled water inlet pipeline, and the outlet of the distilled water switching valve (3) is also connected to the vertical interface of the pressure-expanding air-water mixer (15) through a pipeline.

3. The device capable of simultaneously achieving strong cleaning, dry sterilization, wet sterilization and drying according to claim 1, characterized in that: The cleaning, disinfecting and drying chamber (7) is connected to an exhaust system and a drainage system; wherein the exhaust system includes a filter device (12) located at the top of the cleaning, disinfecting and drying chamber (7), and the gas is connected to the exhaust valve (9) and the safety valve (10) respectively after passing through the filter device (12); the drainage system includes a steam trap (11) located at the bottom of the cleaning, disinfecting and drying chamber (7), and the steam trap (11) is connected to the drainage valve (8).

4. The device capable of simultaneously achieving strong cleaning, dry sterilization, wet sterilization and drying according to claim 3, characterized in that: The bottom of the cleaning, disinfecting and drying chamber (7) is provided with a slope, and a drain valve (8) and a steam trap (11) are provided at the lowest point of the slope.

5. The device capable of simultaneously achieving strong cleaning, dry sterilization, wet sterilization and drying according to claim 4, characterized in that: A pressure and temperature measuring point (13) and a heating resistor (14) are provided on the side wall of the cleaning, disinfecting and drying chamber (7).

6. The device capable of simultaneously achieving strong cleaning, dry sterilization, wet sterilization and drying according to claim 1, characterized in that: The electric heater (4) is an instantaneous heater that can heat water or air.

Citation Information

Patent Citations

  • Supersonic snow forming nozzle and indoor snow forming device

    CN113531968A

  • Two-phase flow shockwave device for performing cleaning and dust removal on object surface

    CN202097151U