CN220002461U - Small intelligent direct-injection type steam hydrogen peroxide sterilizer - Google Patents

Abstract

The utility model relates to a small intelligent direct-injection type steam hydrogen peroxide sterilizer, which comprises: a housing; a control device; the gas generating device comprises a disinfectant bottle bin, a metering pump, a liquid flow sensor, at least one flash evaporator and a diffusion fan which are connected in sequence; the sensor device comprises a hydrogen peroxide concentration sensor and a temperature and humidity sensor, the hydrogen peroxide concentration sensor is arranged between the flash evaporator and the diffusion fan, and the temperature and humidity sensor is arranged in the shell; and the wireless communication device is used for communicating with external equipment. The small intelligent direct-injection type gas hydrogen peroxide sterilizer can achieve the technical effects of rapidly generating hydrogen peroxide gas and rapidly diffusing the hydrogen peroxide gas into the surrounding space and rapidly sterilizing the surrounding space.

Description

Small intelligent direct-injection type steam hydrogen peroxide sterilizer

Technical Field

The present disclosure relates to the field of disinfection appliances, and in particular to a small intelligent direct-injection type vapor hydrogen peroxide sterilizer.

Background

For the space disinfection and sterilization requirements, at present, a plurality of traditional gas fumigation modes such as formaldehyde, ozone, peracetic acid and the like are adopted in China, and a plurality of hydrogen peroxide aerosol and dry hydrogen peroxide gas sterilization modes are adopted. The hydrogen peroxide aerosol is a disinfection and sterilization mode which adopts high-speed airflow to blow liquid hydrogen peroxide into a closed space to be sterilized in a fog state and utilizes the strong oxidizing capability of the hydrogen peroxide to inactivate microorganisms in the space, and the dry hydrogen peroxide gas sterilization mode needs to dehumidify a room or the closed space in advance, and meanwhile, hydrogen peroxide gas generated by equipment is also introduced into the space to be sterilized through a conduit after being subjected to drying and dehumidification treatment, so that the operation is troublesome.

Disclosure of Invention

The utility model provides a small intelligent direct-injection type steam hydrogen peroxide sterilizer, which aims at solving at least one of the technical problems in the prior art.

The technical scheme of the utility model is a small intelligent direct-injection type steam hydrogen peroxide sterilizer, which is characterized by comprising the following components: a housing; the control device is arranged in the shell; the device comprises a gas generating device, wherein the gas generating device comprises a disinfectant bottle bin, a metering pump, a liquid flow sensor, at least one flash evaporator and a diffusion fan which are sequentially connected, the disinfectant bottle bin is connected with a liquid inlet of the metering pump through a first connecting pipe, a liquid outlet of the metering pump is connected with a liquid inlet of the liquid flow sensor through a second connecting pipe, an outlet of the liquid flow sensor is connected with a liquid inlet of the flash evaporator through a third connecting pipe, the liquid inlet of the flash evaporator is connected with a liquid outlet needle tube, the liquid outlet needle tube is arranged above the flash evaporator, the liquid outlet needle tube comprises a plurality of liquid outlet needle heads, the liquid outlet needle heads are used for spraying hydrogen peroxide solution onto a heating surface of the flash evaporator, and the diffusion fan is arranged above the flash evaporator, and the liquid flow sensor is electrically connected with the control device; the sensor device comprises a hydrogen peroxide concentration sensor and a temperature and humidity sensor, the hydrogen peroxide concentration sensor is arranged between the flash evaporator and the diffusion fan, the temperature and humidity sensor is arranged in the shell, and the hydrogen peroxide concentration sensor and the temperature and humidity sensor are respectively and electrically connected with the control device; the wireless communication device is used for communicating with external equipment, and is arranged in the shell and electrically connected with the control device.

Further, a flow dividing valve is arranged on the liquid outlet needle tube.

Further, the wireless communication device comprises a signal processing board and an antenna, and the antenna, the signal processing board and the control device are sequentially connected.

Further, the outer side of the shell is also provided with a liquid adding window, the upper part of the disinfectant bottle bin is provided with a liquid adding hole and a first through hole used for being connected with the first connecting pipe, and the horizontal position of the liquid adding hole and the first through hole is higher than that of the liquid adding window.

Further, the device also comprises a degradation device, wherein the degradation device is arranged in the shell and is electrically connected with the control device.

Further, the degradation device comprises a degradation device power interface arranged on the outer side of the shell, and the degradation device power interface is electrically connected with the degradation device.

Further, the power supply device is electrically connected with the control device, and comprises a power interface arranged on the outer side of the shell, a power circuit board electrically connected with the power interface and a power indicator arranged on the outer side of the shell, wherein the power indicator is electrically connected with the power circuit board, and the power circuit board is electrically connected with the control device.

Further, the control device is a PLC controller.

Further, the heat dissipation device also comprises a heat dissipation hole, wherein the heat dissipation hole is arranged on the outer side of the shell; the air-cooling device further comprises a vent hole, wherein the vent hole is arranged on the outer side of the shell, and the vent hole is arranged above the setting position of the diffusion fan.

Further, the portable electric power generating device further comprises a handle, wherein the handle is arranged on the outer side of the shell.

The utility model has the advantages that,

the utility model provides a small intelligent direct-injection type gas hydrogen peroxide sterilizer, which can achieve the technical effects of rapidly generating hydrogen peroxide gas and rapidly diffusing the gas into a peripheral space to rapidly sterilize the peripheral space. The method solves the contradiction of 'gas generation amount in unit time' and 'fog formation prevention' which determine the sterilization time and the sterilization range, and also ensures that the sterilizer is small enough to be placed in the cavity of the equipment to be sterilized, thereby being convenient for sterilizing the cavity of the equipment.

Drawings

Fig. 1 is a schematic front side view of a small intelligent direct injection gaseous hydrogen peroxide sterilizer according to the present utility model.

Fig. 2 is a rear schematic view of a small intelligent direct-injection gaseous hydrogen peroxide sterilizer according to the present utility model.

Fig. 3 is a schematic top view (hidden enclosure) of a small intelligent direct-injection vapor hydrogen peroxide sterilizer according to the present utility model.

Fig. 4 is a schematic rear side view (hidden enclosure) of a small intelligent direct-injection vapor hydrogen peroxide sterilizer according to the present utility model.

Fig. 5 is a schematic view of the other side of the rear of the small intelligent direct-injection gaseous hydrogen peroxide sterilizer (hidden housing) according to the present utility model.

Fig. 6 is a schematic view (hidden enclosure) of the other side of the front of the small intelligent direct-injection vapor hydrogen peroxide sterilizer according to the present utility model.

Fig. 7 is a schematic diagram of a conventional flash evaporator single point evaporation mode of a small intelligent direct injection type vapor hydrogen peroxide sterilizer according to the present utility model.

Fig. 8 is a schematic diagram of hydrogen peroxide vaporization efficiency of a small intelligent direct-injection vapor hydrogen peroxide sterilizer in accordance with the present utility model.

Fig. 9 is a schematic diagram of a multi-point split scheme of a flash vessel of a small intelligent direct injection gaseous hydrogen peroxide sterilizer according to the present utility model.

Fig. 10 is a schematic diagram of a multiple evaporator multipoint split scheme of a flash evaporator of a small intelligent direct injection vapor hydrogen peroxide sterilizer in accordance with the present utility model.

In the above figures, 100, the casing; 110. a liquid adding window; 120. a heat radiation hole; 130. a vent hole; 140. a handle; 200. a control device; 300. a gas generating device; 310. a disinfectant bottle bin; 311. a liquid adding hole; 312. a first through hole; 320. a metering pump; 330. a flow sensor; 340. a flash evaporator; 350. a diffusion fan; 360. a first connection pipe; 370. a second connection pipe; 380. a third connection pipe; 400. a wireless communication device; 410. an antenna; 500. a power supply device; 510. a power interface; 520. a power indicator light; 530. and a power interface of the degradation device.

Description of the embodiments

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, aspects, and effects of the present utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, top, bottom, etc. used in the present utility model are merely with respect to the mutual positional relationship of the respective constituent elements of the present utility model in the drawings.

Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any combination of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could also be termed a second element, and, similarly, a second element could also be termed a first element, without departing from the scope of the present disclosure.

Referring to fig. 1 to 6, the present utility model provides a small-sized intelligent direct-injection type vapor hydrogen peroxide sterilizer, comprising: a housing 100; a control device 200, wherein the control device 200 is arranged in the casing 100; the gas generating device 300, the gas generating device 300 includes a disinfectant bottle bin 310, a metering pump 320, a liquid flow sensor 330, at least one flash evaporator 340 and a diffusion fan 350 which are sequentially connected, the disinfectant bottle bin 310 and the liquid inlet of the metering pump 320 are connected through a first connecting pipe 360, the liquid outlet of the metering pump 320 and the liquid inlet of the liquid flow sensor 330 are connected through a second connecting pipe 370, the outlet of the liquid flow sensor 330 and the liquid inlet of the flash evaporator 340 are connected through a third connecting pipe 380, the liquid inlet of the flash evaporator 340 is connected with a liquid outlet needle tube, the liquid outlet needle tube is arranged above the flash evaporator 340, the liquid outlet needle tube includes a plurality of liquid outlet needles, the liquid outlet needles are used for spraying hydrogen peroxide solution onto the heating surface of the flash evaporator 340, the diffusion fan 350 is arranged above the flash evaporator 340, and the liquid flow sensor 330 is electrically connected with the control device 200; the sensor device comprises a hydrogen peroxide concentration sensor and a temperature and humidity sensor, the hydrogen peroxide concentration sensor is arranged between the flash evaporator 340 and the diffusion fan 350, the temperature and humidity sensor is arranged in the casing 100, and the hydrogen peroxide concentration sensor and the temperature and humidity sensor are respectively electrically connected with the control device 200; the wireless communication device 400 is configured to communicate with an external device, the wireless communication device 400 is disposed in the casing 100, and the wireless communication device 400 is electrically connected to the control device 200.

Specifically, before the operation starts, the user puts the small intelligent direct-injection type gas hydrogen peroxide sterilizer in a room or equipment to be sterilized, pours a proper amount of hydrogen peroxide sterilizing solution into the sterilizing bottle bin 310, connects the power interface 510 and the degradation power interface 530, opens the power switch of the small intelligent direct-injection type gas hydrogen peroxide sterilizer, operates external equipment, establishes communication connection with the control device 200 through the wireless communication device 400, sets a sterilizing program, starts the metering pump 320, the flash evaporator 340 and the diffusion fan 350 when the sterilization starts, the hydrogen peroxide sterilizing solution in the sterilizing bottle bin 310 is transferred to the metering pump 320 through the first connecting pipe 360, is transferred to the flow sensor 330 through the second connecting pipe 370, is transferred to the flash evaporator 340 through the third connecting pipe 380, and the flash evaporator 340 heats the hydrogen peroxide sterilizing solution to a gasification state, and blows out the hydrogen peroxide gas through the diffusion fan 350, thereby achieving the technical effect of sterilization.

The utility model has the advantages that,

the small intelligent direct-injection type gas hydrogen peroxide sterilizer can achieve the technical effects of rapidly generating hydrogen peroxide gas and rapidly diffusing the hydrogen peroxide gas into the surrounding space and rapidly sterilizing the surrounding space. The method solves the contradiction of 'gas generation amount in unit time' and 'fog formation prevention' which determine the sterilization time and the sterilization range, and also ensures that the sterilizer is small enough to be placed in the cavity of the equipment to be sterilized, thereby being convenient for sterilizing the cavity of the equipment.

The liquid inlet of the flash evaporator is connected with a liquid outlet needle tube, the liquid outlet needle tube is arranged above the flash evaporator and comprises a plurality of liquid outlet needle heads, and a flow dividing valve is arranged on the liquid outlet needle tube. The principle of the small intelligent direct-injection type vapor hydrogen peroxide sterilizer is that a machine quickly evaporates a hydrogen peroxide solution into hydrogen peroxide gas, and hydrogen peroxide gas molecules kill microorganisms. Therefore, the effect and efficiency of the device are critical: how to generate as many hydrogen peroxide gas molecules as possible in a limited time.

Both the flash evaporator and the evaporator described herein are devices for heating and evaporating the hydrogen peroxide solution.

Hydrogen peroxide is readily decomposed into water and oxygen, which decomposition results in the absence of efficient hydrogen peroxide gas molecules, thereby affecting the disinfection efficiency and performance of the machine. Factors affecting the decomposition of hydrogen peroxide:

1. the heating temperature is too low to be easily evaporated, and too high to be easily splashed liquid can not be effectively evaporated;

2. contact time, the longer the hydrogen peroxide solution contacts the heating plate, the easier it is to decompose;

3. heating plate temperature stability, the more stable the heating plate temperature, the better the evaporation effect.

Referring to fig. 7, conventional evaporation is single-point evaporation, and a hydrogen peroxide solution is introduced through a liquid outlet needle tube, and drops of the solution are vaporized on an evaporator drop by drop. The evaporator is a component containing a heating wire and a PT100 temperature probe, the temperature fed back by the control device PLC according to the PT100 is compared with an evaporation temperature value set by a program, the heating wire is electrified to heat the heating wire to raise the temperature, and the evaporator is powered off to cool the evaporator when the temperature is higher, so that the temperature of the evaporator is ensured to be within a certain range.

Problems of the conventional mode:

1. the evaporating temperature can only be set to be lower than the most suitable temperature;

referring to fig. 8, the optimal evaporation temperature of hydrogen peroxide is about 145-150 ℃, the leidenfrost phenomenon is easy to occur when the temperature of the evaporator exceeds 170 ℃, the dripped liquid beads roll around to splash out, the hydrogen peroxide cannot be effectively evaporated, and hydrogen peroxide steam cannot be generated;

the traditional equipment adopts single tube dropwise add solution evaporation, exists time difference between two continuous drops solution at low speed, and last drop solution evaporation heat absorption leads to the heating rod temperature to descend, and controlling means PLC is the heating rod energization heating this moment, and the temperature that will cut off the power supply and stop the heating up until PT100 feedback has reached the evaporation temperature of setting. But the heating rod can continue to heat at the moment of power failure due to the generated heat. If the subsequent solution is not dripped at this time, the temperature of the evaporator may be increased continuously, for example, by more than 170 ℃, and once the liquid drops are dripped, splashing occurs due to the leidenfrost phenomenon, and effective evaporation is not generated, so that the performance of the machine is seriously affected;

therefore, in order to ensure smooth operation at low speed in consideration of machine performance, the evaporator temperature is generally set to be lower, so that the problems of exceeding temperature and the like cannot occur at low speed, but the performance of the machine for dripping solution at high speed is affected, and when a certain large space is disinfected, disinfectant is required to be dripped at high speed for quick evaporation, at the moment, the evaporating temperature is lower, but liquid is continuously dripped at high speed, so that liquid cannot be quickly evaporated and liquid is accumulated on the evaporator, the contact time of a hydrogen peroxide solution and the high-temperature evaporator is greatly prolonged, boiling phenomenon can occur, hydrogen peroxide is quickly decomposed, and a large amount of effective hydrogen peroxide gas is difficult to generate.

2. Single point evaporation

The traditional evaporator is to drop hydrogen peroxide dropwise to a heating plate fixed point, a plurality of strip-shaped heating rods are arranged in the evaporator, and the evaporator is heated integrally. If the reagent is only dripped to a fixed position, the temperature at the point is inhibited, and the heat at other positions can only be lost, so that the heating efficiency is low and the energy consumption is high. Meanwhile, the temperature of the store is difficult to effectively increase, and once the speed is increased, the phenomenon of effusion is easy to occur.

In order to solve the problems, a scheme of multi-point split evaporation is designed, so that the problems can be effectively solved:

1. with a thinner outlet tube, a 20-34G dispensing needle can be used, which can have one inlet and one outlet, and split the liquid to different outlet needle ports. Different liquid outlets can be dripped into different positions of the evaporator for simultaneous multi-point evaporation.

2. These hollow needles are relatively thin, typically 0.60-0.06mm in diameter. The liquid outlet needles with different numbers are distributed according to the speed of adding the reagent, so that the liquid inlet speed is higher than the liquid outlet speed, the hydrogen peroxide solution is ensured to form obvious micro jet flow from each liquid outlet needle, the hydrogen peroxide solution is continuously and uninterruptedly sprayed onto the evaporator to form a diffusion liquid level by impact, and the high-concentration hydrogen peroxide vapor can be quickly evaporated.

3. The hydrogen peroxide solution is continuously impacted on the surface of the evaporator through jet flow multiple points, and the continuous evaporation consumption heat is relatively uniform and stable, so that the heating rod can be heated more stably by adjusting the heating rod by the control device PLC, and the tailing phenomenon is avoided. Therefore, the temperature of the evaporator can be set to the optimal evaporation temperature, such as 145-150 ℃, and the phenomenon of liquid splashing caused by overhigh temperature can be avoided.

4. The control of the shunt valve is used for adapting different running speeds of the peristaltic pump or the metering pump 320 so as to keep the evaporation efficiency consistent; the traditional evaporator generally has the problems that the hydrogen peroxide solution is difficult to well evaporate at low speed and high speed, the evaporation effect at high speed can be ensured by increasing the temperature of the evaporator, but the time between the dropping of liquid drops at low speed is prolonged, and the problems of high-temperature alarm, liquid drop splashing and the like can occur; if the evaporation temperature is regulated down, for example, between 120 and 140 ℃, the evaporation can be smoothly carried out at a low speed, and then the phenomenon of effusion is easy to occur at a high speed; we adopt a plurality of liquid outlet needles and a flow dividing valve to control:

at a typical low speed, which is within 5g/min, we use a single or double needle to discharge, ensuring that the liquid is sprayed onto the generator in a jet, see fig. 9, with needle 1 and needle 2. As the speed is gradually increased, the liquid inlet is still lifted due to the fact that the liquid outlet is small and liquid outlet is limited, the pressure in the liquid flow pipeline continuously rises, if the liquid outlet is not increased, the imagination of pipe explosion easily occurs, and the liquid flow pipeline is broken and leaked at the joint;

the way of adding the flow dividing valve is designed, at the speed of more than 8g/min, the flow dividing valve is opened, and the liquid outlet needle 3 and the liquid outlet needle 4 at the rear end can flow out, so that the situation that the liquid outlet needle 1 and the liquid outlet needle 2 are simultaneously evaporated at four points is equivalent to the situation.

Along with the further improvement of the speed, the rear end of the device can be continuously added with a flow dividing valve and a liquid outlet needle;

the intermediate speed treatment, some intermediate speeds, the diverter valve does not open and uses 1-2 liquid outlet needles, can cause the long-time operation of the tube explosion; opening the diverter valve, 2-4 liquid outlet needles may cause insufficient liquid flow speed, and jet stable injection cannot be formed; this speed is generally between 5 and 8 g;

by half time: assuming that the machine needs to run at an intermediate speed V for T minutes, the settings are as follows:

v t=5 g/min t1+ g/min T2, and t1+t2=t,

the same time evaporation of the hydrogen peroxide reagent with the same volume is completed, wherein 5g/min corresponds to the speed under the condition of closing the flow dividing valve, at the moment, the liquid outlet needle heads are less, the jet flow is stable, 8g/min corresponds to the opening of the flow dividing valve, the liquid outlet needle heads are more, the speed is high enough for all jet ports to form the jet flow, and therefore the stable evaporation problem of the intermediate speed can be well solved.

5. The evaporation problem at a higher speed is solved, the traditional evaporator is single-generator single-point evaporation, and the multi-point efficient evaporation design can be used for efficiently evaporating hydrogen peroxide at a high speed and a low speed; if the heating efficiency of the individual evaporators is difficult to satisfy in the case of further increasing the speed, referring to fig. 10, it is possible to cope with by adding a plurality of evaporators.

Further, a flow dividing valve is arranged on the liquid outlet needle tube.

Further, the wireless communication device 400 includes a signal processing board and an antenna 410, and the antenna 410, the signal processing board and the control device 200 are sequentially connected. In a specific embodiment, the external device is a remote controller, and the remote controller and the wireless communication device 400 are connected wirelessly. The remote controller is arranged to avoid changing the existing structure of the small intelligent direct-injection type vapor hydrogen peroxide sterilizer. The remote controller comprises a human-computer interface, a user can establish connection with the wireless communication device 400 by operating the human-computer interface, and then establish connection with the control device 200, the human-computer interface can start an unmanned mode by one key, can efficiently utilize a machine design sterilization program to the greatest extent, and automatically realizes sterilization operation.

Specifically, the remote control includes a thermal printer. The thermal printer records operation data of the sterilization process in real time, stores the data and supports external reading of the data. The thermal printer is designed according to GMP specifications, and the thermal printer prints collected data such as temperature, humidity, hydrogen peroxide concentration, running time, alarm signals and the like in real time, so that the data cannot be lost due to system breakdown.

Further, referring to fig. 1 to 3, a filling window 110 is further provided on the outer side of the housing 100, a filling hole 311 and a first through hole 312 for connecting with the first connecting tube 360 are provided on the upper portion of the disinfectant tank 310, and the filling hole 311 and the first through hole 312 are provided at a level higher than that of the filling window 110. The heating window can facilitate the operation of filling the disinfectant into the disinfectant liquid bin by a user.

Further, the device further comprises a degradation device, the degradation device is disposed in the casing 100, and the degradation device is electrically connected with the control device 200. The degradation device is used for decomposing residual hydrogen peroxide gas after the sterilization purpose is finished so as to reduce the use state of the equipment. The degradation device adopts a catalyst, and H13-level HEPA high-efficiency blocking dust particles are arranged in the degradation device, so that the degradation device can quickly decompose hydrogen peroxide gas into water vapor and oxygen, the degradation stage time which occupies the longest time in the whole sterilization cycle is shortened, and particles which influence the purification environment of a region to be sterilized are not generated.

Further, the degradation device includes a degradation power interface 530 disposed outside the casing 100, and the degradation power interface 530 is electrically connected to the degradation device.

Further, referring to fig. 1 to 6, the power supply device 500 is electrically connected to the control device 200, the power supply device 500 includes a power interface 510 disposed on the outer side of the casing 100, a power circuit board electrically connected to the power interface 510, and a power indicator 520 disposed on the outer side of the casing 100, the power indicator 520 is electrically connected to the power circuit board, and the power circuit board is electrically connected to the control device 200.

Further, referring to fig. 4 and 5, the control device 200 is a PLC controller. The PLC controller is used for collecting data of the sensor device, communicating with the wireless communication device 400 and external devices, and controlling the operation state of the gas generating device 300.

Further, referring to fig. 1 and 2, the heat dissipation device further includes a heat dissipation hole 120, and the heat dissipation hole 120 is disposed at an outer side of the casing 100. The heat dissipation holes 120 facilitate heat dissipation of the flash evaporator 340; and a vent hole 130, the vent hole 130 being disposed at an outer side of the cabinet 100, the vent hole 130 being disposed above a location where the diffusion fan 350 is disposed. The vent 130 facilitates the diffusion fan 350 to blow out vaporized peroxide gas, increasing the volume of sterilization as much as possible.

Further, referring to fig. 1 and 2, the portable electronic device further includes a handle 140, where the handle 140 is disposed on the outer side of the casing 100. The handle 140 facilitates the user to move the small intelligent direct-injection type vapor hydrogen peroxide sterilizer.

The room is sterilized at normal temperature, including large-volume spaces such as rooms and small-volume spaces such as cavities of the equipment. The sterilization of a small space requires that the amount of a sterilizing machine body is small enough to be placed into a cavity of equipment to finish the sterilization task; the sterilization mode is environment-friendly and has no residue, and meanwhile, the broad-spectrum, high-efficiency and high-reduction-rate inactivation of microorganisms can be realized; the sterilization process is to be completed by simple control without changing the existing structure of the small volume space.

The small intelligent direct-injection type gas hydrogen peroxide sterilizer can ensure that the sterilizing equipment outputs pure hydrogen peroxide gas at the maximum flow rate which can be borne by 30% hydrogen peroxide solution in a flash evaporation mode, simultaneously monitors that the generated wet and hot hydrogen peroxide gas is sprayed into a space to be sterilized and forms a layer of microcondensed film on any surface which can be contacted with the space, wherein the thickness of the microcondensed film is about 2-6 microns, and the microcondensed film cannot be too thick to form supersaturated liquid flow. The hydrogen peroxide gas molecules separate out two hydroxyl (OH-) ions in the micro-thin condensation layer, the hydroxyl ions with the micro-diameter of picometer level have stronger electron capturing capability, and the hydroxyl ions are easier to invade the cells, envelopes, cytoplasm, DNA and RNA of the microorganism from mould to spore to carry out multidirectional attack, so that the more efficient and reliable sterilization effect is achieved.

The core of the small intelligent direct-injection type vapor hydrogen peroxide sterilizer is that a flash evaporator 340 is arranged. The flash evaporator 340 can instantaneously gasify the hydrogen peroxide solution by changing the flow of the hydrogen peroxide solution and improving the temperature response efficiency of the flash plate. The internal airflow configuration can ensure that the generated hydrogen peroxide gas can be timely carried out, and the phenomenon of liquid drop formation caused by the return of supersaturation due to retardation is avoided. The flash evaporator 340 can generate a large amount of hydrogen peroxide gas as much as possible in a unit time, thereby shortening the time consumed for one sterilization cycle, improving the sterilization efficiency, and expanding the sterilization area covered by the sterilizer.

The small intelligent direct-injection type gas hydrogen peroxide sterilizer has small duty volume, but the provided sensors necessary for judgment comprise temperature and humidity, hydrogen peroxide gas concentration, flash evaporation temperature, liquid flow condition and the like of a monitoring environment, so that the system can timely sense abnormal conditions in the sterilization process, and the sterilization task can be reliably completed. The sensor device can monitor the temperature and humidity, the air supply temperature and the hydrogen peroxide gas concentration of the environment in the area in real time, and can achieve an effective and proper microcondensed effect through a preset sterilization method by combining the parameters of the related area volume and the like input by a user through the human-computer interface, thereby ensuring the repeatability and the verifiability of the sterilization effect and the process.

The present utility model is not limited to the above embodiments, but can be modified, equivalent, improved, etc. by the same means to achieve the technical effects of the present utility model, which are included in the spirit and principle of the present disclosure. Are intended to fall within the scope of the present utility model. Various modifications and variations are possible in the technical solution and/or in the embodiments within the scope of the utility model.

Claims (10)

1. A small intelligent direct-injection type vapor hydrogen peroxide sterilizer, which is characterized by comprising:

a housing (100);

-a control device (200), said control device (200) being arranged within said housing (100);

the device comprises a gas generating device (300), wherein the gas generating device (300) comprises a disinfectant bottle bin (310), a metering pump (320), a liquid flow sensor (330), at least one flash evaporator (340) and a diffusion fan (350) which are sequentially connected, the disinfectant bottle bin (310) and a liquid inlet of the metering pump (320) are connected through a first connecting pipe (360), a liquid outlet of the metering pump (320) and a liquid inlet of the liquid flow sensor (330) are connected through a second connecting pipe (370), an outlet of the liquid flow sensor (330) is connected with a liquid inlet of the flash evaporator (340) through a third connecting pipe (380), a liquid outlet needle tube is connected with the liquid inlet of the flash evaporator (340), the liquid outlet needle tube is arranged above the flash evaporator (340), the liquid outlet needle tube comprises a plurality of liquid outlet needles, the liquid outlet needles are used for spraying hydrogen peroxide solution onto a heating surface of the flash evaporator (340), and the diffusion fan (350) is arranged above the flash evaporator (340), and the liquid flow sensor (330) is electrically connected with the control device (200).

The sensor device comprises a hydrogen peroxide concentration sensor and a temperature and humidity sensor, wherein the hydrogen peroxide concentration sensor is arranged between the flash evaporator (340) and the diffusion fan (350), the temperature and humidity sensor is arranged in the shell (100), and the hydrogen peroxide concentration sensor and the temperature and humidity sensor are respectively and electrically connected with the control device (200);

the wireless communication device (400) is used for communicating with external equipment, the wireless communication device (400) is arranged in the shell (100), and the wireless communication device (400) is electrically connected with the control device (200).

2. The small intelligent direct-injection type gas hydrogen peroxide sterilizer as claimed in claim 1, wherein,

and a flow dividing valve is arranged on the liquid outlet needle tube.

3. The small intelligent direct-injection type gas hydrogen peroxide sterilizer as claimed in claim 1, wherein,

the wireless communication device (400) comprises a signal processing board and an antenna (410), wherein the antenna (410), the signal processing board and the control device (200) are sequentially connected.

4. The small intelligent direct-injection type gas hydrogen peroxide sterilizer as claimed in claim 1, wherein,

the utility model discloses a disinfectant bottle, including casing (100) and disinfectant bottle storehouse, the outside of casing (100) has still set up liquid feeding window (110), the upper portion of disinfectant bottle storehouse (310) has set up liquid feeding hole (311) and is used for with first through-hole (312) that first connecting pipe (360) are connected, liquid feeding hole (311) with the horizontal position that first through-hole (312) set up is higher than the horizontal position of liquid feeding window (110).

5. The small intelligent direct-injection type gas hydrogen peroxide sterilizer as claimed in claim 1, wherein,

the device also comprises a degradation device, wherein the degradation device is arranged in the shell (100) and is electrically connected with the control device (200).

6. The small intelligent direct-injection type gas hydrogen peroxide sterilizer as claimed in claim 5, wherein,

the degradation device comprises a degradation device power interface (530) arranged on the outer side of the machine shell (100), and the degradation device power interface (530) is electrically connected with the degradation device.

7. The small intelligent direct-injection type gas hydrogen peroxide sterilizer as claimed in claim 1, wherein,

the power supply device comprises a shell (100), and is characterized by further comprising a power supply device (500), wherein the power supply device (500) is electrically connected with the control device (200), the power supply device (500) comprises a power supply interface (510) arranged on the outer side of the shell (100), a power supply circuit board electrically connected with the power supply interface (510) and a power supply indicator lamp (520) arranged on the outer side of the shell (100), the power supply indicator lamp (520) is electrically connected with the power supply circuit board, and the power supply circuit board is electrically connected with the control device (200).

8. The small intelligent direct-injection type gas hydrogen peroxide sterilizer as claimed in claim 1, wherein,

the control device (200) is a PLC controller.

9. The small intelligent direct-injection type gas hydrogen peroxide sterilizer as claimed in claim 1, wherein,

the heat dissipation device further comprises a heat dissipation hole (120), wherein the heat dissipation hole (120) is arranged on the outer side of the shell (100);

the air conditioner further comprises a vent hole (130), wherein the vent hole (130) is arranged on the outer side of the casing (100), and the vent hole (130) is arranged above the arrangement position of the diffusion fan (350).

10. The small intelligent direct-injection type gas hydrogen peroxide sterilizer as claimed in claim 1, wherein,

the portable electric power box further comprises a handle (140), and the handle (140) is arranged on the outer side of the machine shell (100).