A medical atomization sterilization ventilation fan and a sterilization ventilation system

Abstract

The present invention belongs to the technical field of ventilation equipment, and specifically discloses a medical atomization sterilization ventilation fan and a sterilization ventilation system. By arranging a liquid outlet pipe and a liquid guide groove, utilizing the rotation of an impeller, through the impact of the impeller and the blowing effect of wind force, a fogging effect covering the entire ventilation surface is formed, which can not only ensure that the medicine is evenly distributed in the air duct without dead angles, but also does not require a nozzle that is reasonably designed and adapted to the system, and will not reduce the atomization effect due to slight wear or scale adhesion at the nozzle outlet, and can maintain the atomization effect for a long time without degradation; utilizing the cold and heat generated by the refrigeration component to heat the medicine liquid to be atomized, and condense the air to be discharged, the heated medicine liquid is conducive to atomization, and the bactericidal activity of the medicine is improved; by heating up first and then condensing, the temperature difference between the air and the condensation network is greatly increased, the condensation effect is effectively improved, and the drug residue is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of ventilation equipment, and in particular relates to a medical atomization sterilization ventilation fan and a sterilization ventilation system. Background Art

[0002] In the medical field, the ventilation system in the hospital is crucial. Good ventilation can not only ensure the indoor air quality, but also effectively prevent cross infection. However, the existing hospital ventilation sterilization and disinfection technology has many shortcomings. At present, there are various common ventilation sterilization and disinfection methods, but most of them are not satisfactory and the cost is high. For example, some traditional physical disinfection methods, such as ultraviolet disinfection, have the problems of incomplete disinfection and limited range of action. Although the method of using spraying agents for disinfection is considered to be a better and lower-cost solution, it brings new problems.

[0003] Conventional spraying methods inevitably result in uneven distribution of the agent in the air duct, which may result in a dead angle for disinfection. The atomization effect depends on the design of the nozzle itself. A good atomization effect requires a nozzle with a reasonable design that is compatible with the spray system. During long-term use, slight wear or scale adhesion at the nozzle outlet will significantly reduce the atomization effect.

[0004] In addition, the prior art only uses a conventional demister to demist the exhausted air, thereby reducing drug residues in the air, and the effect is limited. Summary of the invention

[0005] In view of the above-mentioned defects, the purpose of the present invention is to provide a medical atomization sterilization ventilation fan and a sterilization ventilation system. By setting a liquid outlet pipe and a liquid guide groove, the rotation of the impeller is utilized, and the impact of the impeller and the blowing effect of the wind force are used to form a fogging effect throughout the ventilation surface. It can not only ensure that the medicine is evenly distributed in the air duct without dead ends, but also does not require a nozzle that is reasonably designed and adapted to the system. The atomization effect will not be reduced due to slight wear or scale adhesion at the nozzle outlet, and the atomization effect can be maintained for a long time without degradation; the cold and heat generated by the refrigeration component are used to heat the medicine liquid to be atomized, and the air to be discharged is condensed. The heated medicine liquid helps to atomize and improves the bactericidal activity of the medicine; by heating up first and then condensing, the temperature difference between the air and the condensation network is greatly increased, which effectively improves the condensation effect and reduces drug residues.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a medical atomization sterilization ventilation fan, including a wind cylinder, a rotating base is fixedly connected to the middle of the wind cylinder, an impeller is rotatably connected to the rotating base, a liquid outlet component is arranged in the middle of the impeller, and the liquid outlet component relies on centrifugal action to spray liquid medicine to the rotating area of ​​the impeller around, the blades scatter the sprayed liquid medicine, and the airflow generated by the impeller blows the liquid medicine away.

[0007] Furthermore, the liquid outlet assembly includes a plurality of liquid outlet pipes, the number of which is equal to the number of blades, and a liquid outlet pipe is provided at the inner end of each blade. A liquid guide groove is provided on each blade, and the liquid guide groove diverges from the middle of the impeller to the surroundings, and the flow area gradually narrows until it disappears. The liquid outlet pipe extends radially from the middle of the impeller to the surroundings, and the outlet is located at the inner end of the liquid guide groove. Under the action of centrifugal force, the liquid medicine flows out of the liquid outlet pipe, flows along the liquid guide groove, and gradually overflows from the liquid guide groove.

[0008] Furthermore, the liquid guiding groove is arranged on the windward side of the blade. The blade is also provided with a strip-shaped arc-shaped protrusion, and the liquid guiding groove is arranged on the arc-shaped protrusion.

[0009] Furthermore, the liquid outlet assembly also includes an annular liquid collecting tank. The outlet of the medical atomization sterilization ventilation fan is arranged upward, and the annular liquid collecting tank is arranged around the inner side of the wind tube and is located below the impeller. The annular liquid collecting tank is connected to each liquid outlet pipe through a drainage pipe.

[0010] A sterilization ventilation system includes the above-mentioned medical atomization sterilization ventilation fan, and also includes an air duct, a refrigeration component, a heater, a condensation net, and a defogger. The medical atomization sterilization ventilation fan is arranged upstream of the air duct, and the condensation net and the defogger are arranged in sequence downstream of the air duct. The cold end of the refrigeration component provides coldness for the condensation net, and the hot end provides heat for the heater, and the heater is used to heat the liquid medicine sprayed by the medical atomization sterilization ventilation fan.

[0011] Furthermore, it also includes an exhaust fan, which is arranged downstream of the condensation network to extract air in the air duct from the upstream and transport it to the downstream. The medical atomization sterilization ventilation fan is a driven fan, which rotates driven by the airflow in the air duct.

[0012] Furthermore, the air duct includes a disinfection condensation channel and multiple air inlet disinfection channels. The disinfection condensation channel is vertically arranged, and the outlet is located at the top. The condensation net and the defogger are arranged in the disinfection condensation channel from bottom to top. The bottom of the disinfection condensation channel is closed and provided with a water collection low point, and the water collection low point is connected to a liquid storage tank downward. Each air inlet disinfection channel is connected to the side of the bottom of the disinfection condensation channel, and each air inlet disinfection channel is provided with a medical atomization sterilization ventilation fan. The liquid storage tank is connected to the liquid outlet assembly of each air inlet disinfection channel. The heater is located in the liquid storage tank.

[0013] Furthermore, the exhaust fan is located between the condensation net and the demister, and the condensation net is rigidly connected to the housing of the exhaust fan.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention forms a fogging effect throughout the entire ventilation surface by setting a liquid outlet pipe and a liquid guide groove, utilizing the rotation of the impeller, the impact of the impeller and the blowing effect of the wind, which can not only ensure that the medicine is evenly distributed in the air duct without dead angles, but also does not require a nozzle that is reasonably designed and adapted to the system, and will not reduce the atomization effect due to slight wear or scale adhesion at the nozzle outlet, and can maintain the atomization effect for a long time. In addition, the rotation speed of the fan in the present invention is directly related to the flow rate of the liquid medicine, so that the amount of fogging is adapted to the delivery power of the fan. The liquid guide groove directly engraved on the surface of the blade of the present invention is integrated with the fan system, occupies a small space, does not increase the additional volume and weight, has little impact on the layout and installation of the entire equipment, and has a relatively low cost, and is suitable for civil disinfection and ventilation scenes with small air volume requirements such as ward ventilation. The present invention is of pioneering significance and provides for the first time a new and unique atomizing and sterilizing ventilation fan that integrates fogging and airflow delivery functions. Compared with the traditional technology that relies on nozzles to generate mist, this innovative equipment has both advantages and disadvantages. Traditional nozzle technology has shown its unique advantages in certain specific occasions, and the new type of atomizing sterilization ventilation fan provided by the present invention also plays an excellent role in its specific application scenarios. After reasonable adjustment or careful improvement, the new equipment of the present invention can form a good complementary relationship with the existing nozzle technology in applicable scenarios, thereby greatly enriching the technical means and solutions, and providing a new and more diverse choice for the vast number of technicians when facing different needs and actual application scenarios.

[0016] By arranging strip-shaped arc-shaped ridges on the blades, the airflow is accelerated when passing through the arc-shaped ridges, and a turbulent effect is generated, thereby increasing the impact and dispersion effect of the airflow on the liquid overflowing the liquid guide groove, thereby improving the atomization effect.

[0017] The present invention makes full use of the cold and heat generated by the refrigeration component to heat the medicine liquid to be atomized and condense the air to be discharged, and has the following effects: the heated medicine liquid helps to atomize and form finer droplets, and these fine droplets can penetrate deeper into the air, thereby improving the efficiency of sterilization and disinfection; because the medicine liquid is heated, its activity and bactericidal ability may be further enhanced; by heating up first and then condensing, the temperature difference between the air and the condensation network is greatly increased, which effectively improves the condensation effect and reduces drug residues; even after condensation, the discharged air is still close to room temperature.

[0018] By setting the medical atomization sterilization ventilation fan as a driven fan, negative pressure can be formed in the air duct to prevent the gas in the air duct from overflowing and polluting the surrounding environment. However, it is difficult to form an effective negative pressure in the air duct by relying solely on the wind resistance of an ordinary impeller, and the process of atomizing the liquid medicine by the medical atomization sterilization ventilation fan consumes kinetic energy. The kinetic energy of the medical atomization sterilization ventilation fan comes from the airflow, that is, the air pressure difference before and after the medical atomization sterilization ventilation fan. Therefore, the atomization function of the liquid medicine requires a greater air pressure difference to drive the fan to reach the designed rotation speed, thereby making the negative pressure in the air duct more obvious. The kinetic energy of the airflow comes from the exhaust fan. The operation of the entire system can be realized by inputting kinetic energy into the entire system through the exhaust fan, and the layout of the energy supply system can also be simplified.

[0019] By rigidly connecting the condensation net to the housing of the exhaust fan, the vibration generated by the exhaust fan is used to cause the vibration of the condensation net, thereby promoting the condensate on the condensation net to fall off from the condensation net and maintaining the condensation effect of the condensation net. In the process of falling low-temperature droplets along the disinfection condensation channel, the air can be initially condensed and some mist droplets can be carried down together, reducing the condensation pressure of the condensation net and the defogger pressure of the defogger. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the medical atomization sterilization ventilation fan of the present invention;

[0021] Figure 2 This is a diagram of the internal structure of the medical atomization sterilization ventilation fan of the present invention;

[0022] Figure 3 Another internal structure diagram of the medical atomization sterilization ventilation fan of the present invention;

[0023] Figure 4 This is a disassembly diagram of the medical atomization sterilization ventilation fan of the present invention;

[0024] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a structural diagram of the blades of the medical atomization sterilization ventilation fan of the present invention;

[0026] Figure 7 Another structural diagram of the medical atomization sterilization ventilation fan blade of the present invention;

[0027] Figure 8 It is a schematic diagram of the sterilization ventilation system of the present invention.

[0028] In the figure: 110-air cylinder, 120-rotating base, 130-impeller, 131-liquid guide groove, 132-arc-shaped ridge, 140-liquid outlet assembly, 141-liquid outlet pipe, 142-annular liquid collecting trough, 143-drainage pipe, 210-disinfection and condensation channel, 220-air inlet and disinfection channel, 230-refrigeration assembly, 240-condensation net, 250-demister, 260-exhaust fan, 270-liquid storage tank. DETAILED DESCRIPTION

[0029] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of this embodiment, it should also be noted that, unless otherwise clearly specified and limited, the terms “set”, “connected” and “connected” should be understood in a broad sense.

[0031] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Embodiment 1

[0033] Reference Figures 1 to 6 The present embodiment discloses a medical atomization sterilization ventilation fan, including a wind tube 110, a rotating base 120 is fixedly connected to the middle of the wind tube 110, an impeller 130 is rotatably connected to the rotating base 120, a liquid outlet component 140 is arranged in the middle of the impeller 130, and the liquid outlet component 140 sprays liquid medicine to the rotating area of ​​the impeller 130 around by centrifugal action, the blades scatter the sprayed liquid medicine, and the airflow generated by the impeller 130 blows the liquid medicine away.

[0034] The form of the liquid outlet assembly 140 may adopt existing technologies, such as a centrifugal spray disc, a rotary atomizer, etc. This embodiment provides a new technical solution.

[0035] In this embodiment, the liquid outlet assembly 140 includes a plurality of liquid outlet pipes 141, the number of which is equal to the number of blades, and a liquid outlet pipe 141 is provided at the inner end of each blade. A liquid guide groove 131 is provided on each blade, and the liquid guide groove 131 diverges from the middle of the impeller 130 to the surroundings, and the flow area gradually narrows until it disappears. The liquid outlet pipe 141 extends radially from the middle of the impeller 130 to the surroundings, and the outlet is located at the inner end of the liquid guide groove 131. Under the action of centrifugal force, the liquid medicine flows out of the liquid outlet pipe 141 and flows along the liquid guide groove 131, and gradually overflows from the liquid guide groove 131. Specifically, the liquid guide groove 131 may include a main groove body, which extends radially, and a plurality of sub-grooves extend circumferentially along the main groove body, thereby increasing the area where the mist is generated. Both the main groove body and the sub-grooves gradually narrow and become shallower.

[0036] When the present embodiment is in use, through the rotation of the impeller 130, under the action of centrifugal force, the liquid medicine flows out of the liquid outlet pipe 141 and flows along the liquid guide groove 131. As the flow area of ​​the liquid guide groove 131 is continuously reduced, the liquid medicine gradually overflows from the liquid guide groove 131 and separates from the blades. Through the impact of the impeller 130 and the blowing effect of the wind, a fogging effect is formed throughout the entire ventilation surface. The present embodiment can not only ensure that the medicine is evenly distributed in the air duct without dead angles, but also does not require a nozzle that is reasonably designed and adapted to the system, and will not reduce the atomization effect due to slight wear or scale adhesion at the nozzle outlet, and can maintain the atomization effect for a long time. In addition, the rotation speed of the fan in the present embodiment is directly related to the flow rate of the liquid medicine, so that the amount of fogging is adapted to the delivery power of the fan. The liquid guide groove 131 directly engraved on the surface of the blade in the present embodiment is integrated with the fan system, occupies a small space, does not increase additional volume and weight, has little impact on the layout and installation of the entire equipment, and has a relatively low cost.

[0037] As a further solution of this embodiment: the liquid guide groove 131 is provided on the windward side of the blade. The blade is also provided with a strip-shaped arc-shaped protrusion 132, and the liquid guide groove 131 is provided on the arc-shaped protrusion 132. By providing the arc-shaped protrusion 132, the flow velocity of the airflow is accelerated when passing through the arc-shaped protrusion 132, and a turbulent effect is generated, thereby improving the impact and dispersion effect of the airflow on the liquid medicine overflowing the liquid guide groove 131, and improving the atomization effect.

[0038] As a further solution of this embodiment: the liquid outlet assembly 140 also includes an annular liquid collecting tank 142. The outlet of the medical atomization sterilization ventilation fan is arranged upward, and the annular liquid collecting tank 142 is arranged around the inner side of the wind tube 110 and is located below the impeller 130. The annular liquid collecting tank 142 is connected to each liquid outlet pipe 141 through a drainage pipe 143. The annular liquid collecting tank 142 is used to collect the liquid medicine thrown from the impeller 130 to the inner wall of the wind tube 110, and is connected to each liquid outlet pipe 141 through the drainage pipe 143 to reintroduce the liquid medicine into the liquid outlet pipe 141.

[0039] Embodiment 2

[0040] Reference Figure 7 On the basis of the first embodiment, this embodiment further provides a sterilization ventilation system, including the medical atomization sterilization ventilation fan of the first embodiment, and also including an air duct, a refrigeration component 230, a heater, a condensation net 240, and a defogger 250. The medical atomization sterilization ventilation fan is arranged upstream of the air duct, and the condensation net 240 and the defogger 250 are arranged in sequence downstream of the air duct. The cold end of the refrigeration component 230 provides coldness for the condensation net 240, and the hot end provides heat for the heater, and the heater is used to heat the liquid medicine sprayed by the medical atomization sterilization ventilation fan. The refrigeration component 230 can adopt existing technologies, such as semiconductor refrigeration, refrigerant circulation refrigeration, etc.

[0041] This embodiment makes full use of the cold and heat generated by the refrigeration component 230 to heat the medicine liquid to be atomized and condense the air to be discharged, which has the following effects: the heated medicine liquid helps to atomize and form smaller droplets, which can penetrate deeper into the air and improve the efficiency of sterilization and disinfection; because the medicine liquid is heated, its activity and bactericidal ability may be further enhanced; by heating up first and then condensing, the temperature difference between the air and the condensation network 240 is greatly increased, which effectively improves the condensation effect and reduces drug residues; even after condensation, the discharged air is still close to room temperature.

[0042] As a further solution of this embodiment: it also includes an exhaust fan 260, which is arranged downstream of the condensation network 240, extracting air from the upstream in the air duct and conveying it to the downstream. The medical atomization sterilization ventilation fan is a driven fan, which rotates driven by the airflow in the air duct. With this technical solution, negative pressure can be formed in the air duct to prevent the gas in the air duct from overflowing and polluting the surrounding environment. However, it is difficult to form an effective negative pressure in the air duct by relying solely on the wind resistance of an ordinary impeller, and the process of atomizing the liquid medicine by the medical atomization sterilization ventilation fan consumes kinetic energy. The kinetic energy of the medical atomization sterilization ventilation fan comes from the airflow push, that is, the air pressure difference before and after the medical atomization sterilization ventilation fan. Therefore, the atomization function of the liquid medicine requires a greater air pressure difference to drive the fan to reach the designed rotation speed, thereby making the negative pressure in the air duct more obvious. The kinetic energy of the airflow comes from the exhaust fan 260. The operation of the entire system can be realized by inputting kinetic energy to the entire system through the exhaust fan 260, and the layout of the energy supply system can also be simplified.

[0043] As a further solution of this embodiment: the air duct includes a disinfection condensation channel 210 and multiple air inlet disinfection channels 220, and the air inlet disinfection channels 220 are connected to each ward. The disinfection condensation channel 210 is arranged vertically, and the outlet is located at the top. The condensation net 240 and the defogger 250 are arranged in the disinfection condensation channel 210 from bottom to top. The bottom of the disinfection condensation channel 210 is closed and provided with a water collection low point, and the water collection low point is connected to the liquid storage tank 270 downward. The condensed medicine liquid in the condensation net 240 and the disinfection condensation channel 210 flows into the liquid storage tank 270 under the action of gravity to realize the recovery of the medicine liquid. Each air inlet disinfection channel 220 is connected to the side of the bottom of the disinfection condensation channel 210, and each air inlet disinfection channel 220 is provided with a medical atomization sterilization ventilation fan. The liquid storage tank 270 is connected to the liquid outlet component 140 of each air inlet disinfection channel 220 to reuse the recovered medicine liquid. The liquid medicine should also be replenished according to the consumption of the liquid medicine, and the liquid medicine should be replaced regularly. These operations and related structures are conventional techniques and will not be expanded in this embodiment. The heater is located in the liquid storage tank 270 to directly heat the liquid medicine.

[0044] As a further solution of this embodiment: the exhaust fan 260 is located between the condensation net 240 and the defogger 250, and the condensation net 240 is rigidly connected to the housing of the exhaust fan 260. By rigidly connecting the condensation net 240 to the housing of the exhaust fan 260, the vibration generated by the operation of the exhaust fan 260 is used to cause the vibration of the condensation net 240, thereby promoting the condensation liquid on the condensation net 240 to fall off from the condensation net 240, and maintaining the condensation effect of the condensation net 240. In the process of falling low-temperature droplets along the disinfection condensation channel 210, the air can be preliminarily condensed, and some mist droplets can be carried down together, reducing the condensation pressure of the condensation net 240 and the defogger pressure of the defogger 250.

[0045] This embodiment can fully atomize and disinfect the air flowing through the air duct and control the drug residue in the exhaust air, and is more suitable for ventilation of wards with highly infectious bacteria.

[0046] The above only describes in detail the preferred embodiments of the present invention, which is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sterilization ventilation system, characterized in that: A medical atomization sterilization ventilation fan is provided, the ventilation fan comprising a wind tube (110), a rotating base (120) is fixedly connected to the middle of the wind tube (110), an impeller (130) is rotatably connected to the rotating base (120), and the characteristic is that a liquid outlet component (140) is provided in the middle of the impeller (130), the liquid outlet component (140) sprays liquid medicine to the rotating area of ​​the impeller (130) around by centrifugal action, the blades disperse the sprayed liquid medicine, and the airflow generated by the impeller (130) disperses the liquid medicine; The liquid outlet assembly (140) comprises a plurality of liquid outlet pipes (141), the number of the liquid outlet pipes (141) being equal to the number of blades, and the inner end of each blade being provided with a liquid outlet pipe (141); each blade being provided with a liquid guide groove (131), the liquid guide groove (131) radiating from the middle of the impeller (130) to the surroundings, and the flow area gradually narrowing until it disappears; the liquid outlet pipe (141) radially extending from the middle of the impeller (130) to the surroundings, and the outlet being located at the inner end of the liquid guide groove (131); under the action of centrifugal force, the liquid medicine flows out of the liquid outlet pipe (141), flows along the liquid guide groove (131), and gradually overflows from the liquid guide groove (131); It also includes an air duct, a refrigeration component (230), a heater, a condensation net (240), and a demister (250); the medical atomization sterilization ventilation fan is arranged upstream of the air duct, and the condensation net (240) and the demister (250) are arranged in sequence downstream of the air duct; the cold end of the refrigeration component (230) provides cold energy for the condensation net (240), and the hot end provides heat for the heater, and the heater is used to heat the liquid medicine sprayed by the medical atomization sterilization ventilation fan; It also includes an exhaust fan (260), which is arranged downstream of the condensation net (240) and extracts air in the air duct from the upstream and transports it to the downstream; the medical atomization sterilization ventilation fan is a driven fan, which rotates under the drive of the airflow extracted by the exhaust fan (260); The air duct comprises a sterilization condensation channel (210) and a plurality of air inlet sterilization channels (220); the sterilization condensation channel (210) is vertically arranged with the outlet at the top, and the condensation net (240) and the defogger (250) are arranged in the sterilization condensation channel (210) from bottom to top; the bottom of the sterilization condensation channel (210) is closed and provided with a water collection low point, and the water collection low point is downwardly connected to a liquid storage tank (270); each of the air inlet sterilization channels (220) is connected to the side of the bottom of the sterilization condensation channel (210), and each of the air inlet sterilization channels (220) is provided with a medical atomization sterilization ventilation fan; the liquid storage tank (270) is connected to the liquid outlet component (140) of each of the air inlet sterilization channels (220); and the heater is located in the liquid storage tank (270).

2. The sterilization ventilation system according to claim 1, characterized in that: The liquid-conducting groove (131) is provided on the windward side of the blade; a strip-shaped arc-shaped protrusion (132) is also provided on the blade, and the liquid-conducting groove (131) is provided on the arc-shaped protrusion (132).

3. The sterilization ventilation system according to claim 1, characterized in that: The liquid outlet assembly (140) further comprises an annular liquid collecting trough (142); the outlet of the medical atomization sterilization ventilation fan is arranged upward, and the annular liquid collecting trough (142) is arranged around the inner side surface of the wind cylinder (110) and is located below the impeller (130); the annular liquid collecting trough (142) is connected to each of the liquid outlet pipes (141) through a drainage pipe (143).

4. The sterilization ventilation system according to claim 1, characterized in that: The exhaust fan (260) is located between the condensation net (240) and the demister (250), and the condensation net (240) is rigidly connected to a housing of the exhaust fan (260).

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