阅读说明：本技术 一种消杀设备的处理方法、装置及计算机存储介质 (Processing method and device of killing equipment and computer storage medium ) 是由 唐昶宇 罗晓阳 邵虹 刘颖彘 王维学 胡丹 陈勇前 于 2021-02-24 设计创作，主要内容包括：本发明公开了一种消杀设备的处理方法、装置及计算机存储介质,消杀设备设有用于容纳防疫废弃物的密闭空间,处理方法包括：在第一预设时间内向密闭空间通入臭氧并对密闭空间照射185nm波长和254nm波长的紫外线进行第一阶段消杀；在第一阶段消杀开始后,向密闭空间通入羟基自由基水雾,并在第一阶段消杀结束之前停止通入羟基自由基水雾；在第一阶段消杀结束后,在第二预设时间内对密闭空间加热并照射254nm波长的紫外线进行第二阶段消杀。本发明能够在进行臭氧消杀期间同时进行羟基自由基消杀,因此无需长时间通入高浓度臭氧,可以在较低臭氧浓度下实现消杀,进而降低能耗和危害性。(The invention discloses a treatment method and a treatment device of sterilizing equipment and a computer storage medium, wherein the sterilizing equipment is provided with a closed space for accommodating epidemic-prevention wastes, and the treatment method comprises the following steps: introducing ozone into the closed space within a first preset time, and irradiating ultraviolet rays with the wavelength of 185nm and the wavelength of 254nm to the closed space for first-stage disinfection; after the first-stage killing begins, introducing hydroxyl radical water mist into the closed space, and stopping introducing the hydroxyl radical water mist before the first-stage killing is finished; and after the first-stage disinfection is finished, heating the closed space within a second preset time and irradiating 254nm ultraviolet rays for second-stage disinfection. The method can simultaneously carry out hydroxyl radical sterilization during ozone sterilization, so that high-concentration ozone does not need to be introduced for a long time, sterilization can be realized under lower ozone concentration, and further energy consumption and harmfulness are reduced.)

1. A method of treating a sterilizing apparatus provided with a closed space for accommodating epidemic-prevention wastes, comprising:

introducing ozone into the closed space within a first preset time, and irradiating ultraviolet rays with 185nm and 254nm wavelengths to the closed space for first-stage disinfection;

after the first-stage killing is started, introducing hydroxyl radical water mist into the closed space, and stopping introducing the hydroxyl radical water mist before the first-stage killing is finished;

and after the first-stage disinfection is finished, heating the closed space within a second preset time and irradiating 254nm ultraviolet rays for second-stage disinfection.

2. The automatic control method according to claim 1, characterized in that said first preset time is 20-40 minutes and said second preset time is 20 minutes.

3. The treatment method according to claim 2, wherein the duration of the introduction of the hydroxyl radical water mist is 10 minutes.

4. The treatment process according to claim 3, wherein the hydroxyl radical water mist is introduced 10 minutes after the start of the first-stage killing.

5. The process according to claim 1, wherein the killing apparatus is provided with a hatch door capable of opening the enclosed space, the hatch door being provided with an electrically controlled door lock, the process further comprising:

and after the second-stage killing is finished, collecting the ozone concentration of the closed space, controlling the electric control door lock to unlock when the ozone concentration is lower than a safety threshold, and repeating the second-stage killing when the ozone concentration is not lower than the safety threshold.

6. The treatment method according to claim 1, wherein the first-stage killing and the second-stage killing are performed by collecting the concentration, humidity and temperature of ozone in the enclosed space and recording the time-varying curves of the concentration, humidity and temperature of ozone.

7. A killing control device of a killing apparatus provided with a closed space for containing epidemic-prevention wastes, characterized in that the killing control device comprises a processor and a memory, the memory having stored therein a computer program for executing the computer program to realize the steps of the processing method according to any one of claims 1 to 6.

8. A computer storage medium, characterized in that it stores a computer program executable to implement the steps of the processing method according to any one of claims 1 to 6.

Technical Field

The invention relates to the technical field of epidemic prevention and killing, in particular to a processing method and a processing device of killing equipment and a computer storage medium.

Background

The epidemic prevention waste refers to waste which is generated in the process of epidemic situation prevention and control and has direct or indirect infectivity, toxicity and other harmfulness, and may contain a large amount of pathogenic microorganisms, so the epidemic prevention waste is an important risk factor causing disease transmission or related public health problems. Therefore, the epidemic prevention waste must be sterilized.

At present, the common sterilizing and killing equipment in the market collects abandoned waste into a closed space, and adopts a mode of introducing ozone and irradiating ultraviolet rays for a long time to sterilize and kill epidemic-prevention waste. However, such a sterilization method has some disadvantages, namely, firstly, ozone is introduced for a long time, which easily causes too high ozone concentration and has certain harm to human body, secondly, ultraviolet rays are usually generated by an ultraviolet lamp tube, which reduces the service life when the ultraviolet lamp tube is opened for a long time, and thirdly, the sterilization effect of ultraviolet rays on spores, cysts and viruses is poor, because the spores, cysts and viruses have high tolerance, it is difficult to ensure that the spores, cysts and viruses are completely killed.

Disclosure of Invention

The invention aims to provide a treatment method and a treatment device of sterilizing equipment and a computer storage medium, which can simultaneously perform hydroxyl radical sterilization during ozone sterilization, so that high-concentration ozone does not need to be introduced for a long time, sterilization can be realized under a lower ozone concentration, and further energy consumption and harmfulness are reduced; can decompose ozone after killing to reduce the harm that ozone dissipates to operating personnel brought when airtight space is opened.

In order to solve the technical problems, the invention adopts a technical scheme that: there is provided a method of treating a sterilizing apparatus provided with a closed space for accommodating epidemic-prevention wastes, comprising:

introducing ozone into the closed space within a first preset time, and irradiating ultraviolet rays with 185nm and 254nm wavelengths to the closed space for first-stage disinfection;

after the first-stage killing is started, introducing hydroxyl radical water mist into the closed space, and stopping introducing the hydroxyl radical water mist before the first-stage killing is finished;

and after the first-stage disinfection is finished, heating the closed space within a second preset time and irradiating 254nm ultraviolet rays for second-stage disinfection. Preferably, the first preset time is 20-40 minutes, and the second preset time is 20 minutes.

Preferably, the duration of the introduction of the hydroxyl radical water mist is 10 minutes.

Preferably, the aqueous mist of hydroxyl radicals is introduced 10 minutes after the start of the first-stage killing.

Preferably, the killing device is provided with a cabin door capable of opening the closed space, the cabin door is provided with an electric control door lock, and the processing method further comprises the following steps:

and after the second-stage killing is finished, collecting the ozone concentration of the closed space, controlling the electric control door lock to unlock when the ozone concentration is lower than a safety threshold, and repeating the second-stage killing when the ozone concentration is not lower than the safety threshold.

Preferably, when the first-stage killing and the second-stage killing are carried out, the ozone concentration, the humidity and the temperature of the closed space are collected, and the time-varying curves of the ozone concentration, the humidity and the temperature are recorded.

In order to solve the technical problem, the invention adopts another technical scheme that: there is provided a sterilizing control device for sterilizing equipment provided with a closed space for accommodating epidemic-prevention wastes, comprising a processor and a memory, wherein the memory stores a computer program, and the processor is used for executing the computer program to realize the steps of the processing method of any one of the preceding claims.

In order to solve the technical problem, the invention adopts another technical scheme that: there is provided a computer storage medium storing a computer program executable to implement the steps of the processing method of any one of the preceding claims.

Different from the prior art, the invention has the beneficial effects that:

1. the killing is divided into two stages, ozone killing is carried out only in the first stage, and hydroxyl radical killing is carried out while ozone killing is carried out, so that the killing effect can be improved, the ozone concentration can be reduced, and the harmfulness is reduced.

2. The hydroxyl radical water mist is introduced during the first-stage killing period, so that the ozone and the hydroxyl radical water mist can be fully mixed, and the killing effect can be further improved.

3. The second stage disinfection makes ozone in the closed space decompose at an accelerated speed by raising the temperature of the closed space and irradiating ultraviolet rays in a matched manner, so that the harm to operators caused by ozone dissipation when the closed space is opened can be reduced, and the disinfection effect can be further improved by irradiating ultraviolet rays while heating.

4. The closed space can be opened only when the concentration of ozone is lower than the safety threshold value, so that the safety of operators can be further protected

Drawings

Fig. 1 is a schematic flow chart of a processing method of a killing apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic block diagram of a killing control device of the killing apparatus according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic flow chart of a processing method of the killing apparatus according to the embodiment of the present invention. In the embodiment of the invention, the sterilizing and killing equipment is provided with a closed space for accommodating epidemic prevention waste, and the treatment method comprises the following steps:

s1: and introducing ozone into the closed space within a first preset time, and irradiating ultraviolet rays with the wavelength of 185nm and the wavelength of 254nm to the closed space for first-stage disinfection.

In this embodiment, ozone may be generated by an ozone generator, and ultraviolet rays having a wavelength of 185nm and a wavelength of 254nm may be generated by an ultraviolet lamp tube. The ozone generator and the ultraviolet lamp tube can be a part of the sterilizing equipment or can be independent of the sterilizing equipment. The ultraviolet lamp tubes can be multiple, and can irradiate ultraviolet rays to the closed space from different directions to inactivate bacteria and viruses. The ozone is blown in the closed space, can be attached to the surface of the epidemic prevention waste, can permeate from the gaps among the epidemic prevention waste, and can inactivate bacteria and viruses of the epidemic prevention waste in the whole closed space.

S2: and after the first-stage killing is started, introducing the hydroxyl radical water mist into the closed space, and stopping introducing the hydroxyl radical water mist before the first-stage killing is finished.

The hydroxyl radical water mist is pumped into the closed space and then floats in the closed space, can be attached to the surface of epidemic prevention waste, and can permeate from gaps among the epidemic prevention waste to inactivate bacteria and viruses together with ozone. In this example, a mist of hydroxyl radical water is produced by an ultrasonic atomizer. The ultrasonic atomizer can make the ozone and the hydroxyl radical water smoke that fly upward move along with the ultrasonic to prevent the liquid drop to condense, ensured that ozone and hydroxyl radical water smoke have stronger penetrability, the epidemic prevention discarded object that more permeates the bottom combines with it to disinfect, thereby further improve disinfection effect.

S3: and after the first-stage disinfection is finished, heating the closed space within a second preset time and irradiating 254nm ultraviolet rays for second-stage disinfection.

The temperature of the closed space can be raised by heating the closed space, ozone is decomposed in an accelerated manner before the closed space is opened, so that the purpose of eliminating the ozone is achieved, new active free radicals can be generated, residual viruses can be further inactivated by irradiating ultraviolet rays while heating, and the killing effect can be further enhanced. In this embodiment, the enclosed space is heated by an infrared heater.

The sterilizing equipment is provided with a cabin door capable of opening the closed space, and the cabin door is provided with an electric control door lock. In the killing process, the electric control door lock is locked, the cabin door cannot be opened, and the closed space is in a closed state. In order to prevent the higher concentration of ozone from escaping when the enclosed space is open, in this embodiment, the treatment method further comprises:

s4: and after the second-stage killing is finished, collecting the ozone concentration of the closed space, controlling the electric control door lock to unlock when the ozone concentration is lower than a safety threshold, and repeating the second-stage killing when the ozone concentration is not lower than the safety threshold.

Wherein the ozone concentration can be collected by a corresponding sensor. The safety threshold can be set according to actual needs, for example, 2 ppm. When the ozone concentration is lower than the safety threshold, the electric control door lock can be unlocked, the closed space can be opened, otherwise, the second-stage disinfection is repeated until the ozone concentration is lower than the safety threshold.

In order to facilitate tracing of the killing condition and evaluation of the killing effect, in the embodiment, the ozone concentration, humidity and temperature of the closed space are collected when the first-stage killing and the second-stage killing are carried out, and the time-varying curves of the ozone concentration, humidity and temperature are recorded.

In the specific implementation of the processing method of this embodiment, the first preset time is 20-40 minutes, and the second preset time is 20 minutes. During the first-stage killing, the duration of the introduction of the hydroxyl radical water mist was 10 minutes. The hydroxyl radical water mist can be introduced 10 minutes after the first stage of killing begins.

The user need not too much operation when operation equipment of killing, only need open the power, selects the start button of killing, and the equipment of killing can accomplish the killing automatically, and the time of killing is 1 hour, and its flow is:

introducing ozone into the sealed space from 0 to 40 minutes and irradiating the sealed space with ultraviolet rays with the wavelength of 185nm and the wavelength of 254nm for first-stage disinfection;

introducing hydroxyl radical water mist into the closed space from 10 minutes to 20 minutes;

heating the sealed space and irradiating 254nm ultraviolet ray for the second stage sterilization from 40 min to 60 min.

The treatment method disclosed by the embodiment of the invention combines the ozone oxidation technology with the hydroxyl radical oxidation technology, and fully combines the advantages of the ozone oxidation technology and the hydroxyl radical oxidation technology. The molecular structure of ozone is unstable at normal temperature and pressure, and the ozone is quickly decomposed into oxygen (O)₂) And a single oxygen atom (O); the ozone broad-spectrum sterilization performance is excellent, and the ozone broad-spectrum sterilization agent has quite strong inactivation capacity on all germ propagules, spores, viruses (including hepatitis B virus, avian influenza virus, hand-foot-and-mouth disease virus, H7N9 avian influenza virus and H1N1 influenza A virus), molds and fungi; the killing rate of common coliform bacteria, fecal streptococcus and staphylococcus aureus is more than 99.99 percent. The national P3 laboratory has proved that the inactivation rate of ozone to SARS virus is 99.22%, and the effect is significant. The hydroxyl free radical has strong activity, has oxidation capability higher than that of the conventional chemical disinfectant, can directly react with bacteria and viruses to destroy organelles and ribonucleic acid of the bacteria and viruses, decompose macromolecular polymers such as DNA, RNA, protein, lipid, polysaccharide and the like, and play a role in sterilization and disinfection (sterilization rate)>99%) and no toxic residue is present after the reaction. Therefore, the combination of the two can oxidize organic matters synergistically, compared with the traditional ozone disinfection, the ozone disinfection device has stronger bacterium and virus inactivation capacity, and can avoid secondary ozone pollution.

The treatment method of the invention and the conventional ozone disinfection method are used for carrying out disinfection test on the same amount of simulated waste, and the test strain adopts bacillus subtilis (ATCC6633) according to the 2002 edition of the technical Specification for disinfection of the Ministry of public health. Taking spore suspension, and adjusting the concentration of the bacterial liquid to the bacterial content of about 1 × 108 cfu/mL-5 × 108cfu/mL according to the counting result. The sterilized carrier sheet (filter paper or plastic fabric) is spread in a sterile plate, and bacterial liquid is dripped one by one. The drop amount of the bacteria is 10 μ L per tablet. Negative control plus 10. mu.LPBS. The bacterial tablets are placed in a sterile plate, then the sterile plate is placed in a closed space to be subjected to sterilization treatment for different time, then the spore killing rate is tested and calculated, and the sterilization test data are shown in table 1.

TABLE 1 data of the sterilization test of the treatment method of this example and the conventional ozone sterilization method

As can be seen from the table, under the condition of the same ozone concentration (45ppm) and killing time, the treatment method of the invention has much higher killing rate on bacillus on the surfaces of filter paper and fabric, and the result also shows the strong sterilization capability of the hydroxyl free water mist, and the hydroxyl free water mist can well diffuse and permeate into the surface of the fabric to deeply kill bacteria; the conventional ozone disinfection method has insufficient killing capacity on bacillus, particularly poor killing capacity on bacteria on the surface of plastic fabric, insufficient permeability, and can improve the killing rate only by prolonging the killing time and the ozone concentration, even if the killing rate on the bacteria on the surface of the fabric is not high. In addition, the invention can realize 100% killing of bacillus under the condition of prolonging the killing time, and the ozone concentration is reduced to be below the safe concentration before the closed space is opened; however, a large amount of ozone still remains after the conventional ozone disinfection method is finished, and once the closed space is opened, the safety of operators is affected.

The invention also provides a killing control device of the killing equipment, the killing equipment is provided with a closed space for accommodating epidemic-prevention wastes, please refer to fig. 2, and the killing control device comprises a processor 21 and a memory 22. The memory 22 stores therein a computer program, and the processor 21 is configured to execute the computer program to implement the steps of the processing method of the foregoing embodiment.

The processor 21 may be a Central Processing Unit (CPU). Or may be an integrated circuit chip having computing (including determining) and control capabilities, and the processor 22 may be a general purpose processor, an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components, and so forth, and is not limited in this respect. A general purpose processor may be a microprocessor or any conventional processor or the like.

The memory 22 may be any electronic, magnetic, optical, or other physical storage device that can contain or store information such as executable instructions, data, and the like. For example, the Memory 21 may include a RAM (Random Access Memory), a Volatile Memory, a NVM (Non-Volatile Memory), a flash Memory, a storage drive (e.g., a hard disk drive), a solid state drive, any type of storage disk (e.g., a compact disk, a dvd, etc.), or similar storage medium, or a combination thereof.

For the logical procedures of the automatic control method of the foregoing embodiment, it may exist in the form of a computer program, and thus the present invention also protects a computer storage medium having stored therein a computer program that can be executed to implement the steps of the processing method of the foregoing embodiment.

The computer storage medium may be a medium that can store program instructions, such as a U-disk, a removable hard disk, a ROM (Read-Only Memory), a RAM (Random Access Memory), a magnetic disk, or an optical disk, or may also be a server that stores the program instructions, and the server may send the stored program instructions to other devices for operation, or may also automatically execute the stored program instructions.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.