Pressure control method and system based on friction heat medical waste treatment equipment

Abstract

The present invention relates to the field of medical waste treatment technology, and aims to solve the problem in the prior art that the friction heat medical waste treatment equipment does not effectively monitor the negative pressure environment of the medical waste treatment chamber, which may affect the treatment effect of medical waste and the safety needs to be improved. To this end, the present invention provides a pressure control method and system based on the friction heat medical waste treatment equipment, the method comprising: judging whether there is a problem with the negative pressure environment in the medical waste treatment chamber; if so, judging that the medical waste treatment chamber has leaked and issuing an alarm prompt; obtaining the type of medical waste in the treatment chamber and determining the properties of the reactants generated during the treatment of the medical waste; retrieving all reactant diffusion models that meet the properties of the reactants; and judging the leakage of the medical waste treatment chamber based on all retrieved reactant diffusion models. The present invention can achieve effective monitoring of the negative pressure environment in the medical waste treatment chamber, ensure the treatment effect of medical waste and improve the safety of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of medical waste treatment, and in particular to a pressure control method and system based on friction heat medical waste treatment equipment. Background Art

[0002] In the field of medical waste treatment, with the increasing attention paid to environmental protection and public health safety, effective and safe medical waste treatment methods have become the focus of research. Traditional medical waste treatment methods, such as incineration and landfill, may not only cause secondary pollution to the environment, but also may cause the risk of disease transmission due to improper treatment. Therefore, a medical waste treatment device based on the principle of friction heat came into being. The device uses the heat generated by friction to sterilize and harmlessly treat medical waste at high temperature, thereby achieving safe and efficient treatment of medical waste. In this medical waste treatment process based on friction heat, the negative pressure environment in the treatment chamber is one of the key factors to ensure the treatment effect and safety of the treatment process. The negative pressure environment can effectively prevent the leakage of harmful gases and particles generated during the treatment process, protect the safety of operators and the surrounding environment, and at the same time, the negative pressure environment can also promote full contact between medical waste and friction heat source, and improve treatment efficiency.

[0003] However, existing medical waste treatment equipment based on friction heat has obvious deficiencies in monitoring and controlling the negative pressure environment in the treatment chamber. Specifically, these devices often only focus on the stability and treatment efficiency of the friction heat source, while ignoring the dynamic changes of the negative pressure environment in the treatment chamber. In the actual treatment process, due to the large differences in the types, quantities and forms of medical waste, as well as the influence of factors such as the sealing performance of the equipment itself and the working efficiency of the exhaust device, the negative pressure value in the treatment chamber often fluctuates.

[0004] When the negative pressure value in the treatment chamber is too high, it will not only affect the contact effect between medical waste and friction heat source, reduce the treatment efficiency, but also may damage the sealing performance and structure of the equipment. More seriously, if the treatment chamber leaks, the negative pressure environment will be destroyed, and harmful gases and particles may leak out, posing a serious threat to operators and the surrounding environment. In addition, due to the lack of real-time monitoring and control of the negative pressure environment in the treatment chamber, operators are often unable to timely and accurately understand the actual situation in the treatment chamber, and are unable to adjust and optimize the treatment process according to the actual situation. This not only affects the treatment effect and the service life of the equipment, but may also increase the workload and safety risks of operators.

[0005] In view of this, the art needs a pressure control method and system based on friction heat medical waste treatment equipment to solve the above problems. Summary of the invention

[0006] In order to solve the above technical problems, that is, to solve the problem that the friction heat medical waste treatment equipment in the prior art does not effectively monitor the negative pressure environment of the medical waste treatment chamber, which may affect the treatment effect of medical waste and the safety needs to be improved.

[0007] In a first aspect, the present invention provides a pressure control method for a friction heat medical waste treatment device, the pressure control method comprising:

[0008] Determine whether the negative pressure value in the medical waste treatment chamber is greater than the set upper limit value;

[0009] If the negative pressure value in the medical waste treatment chamber is greater than the set upper limit value, the rotation speed of the air extraction device is increased to a preset rotation speed;

[0010] After a set time, determine whether the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value;

[0011] If the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value, it is determined that the medical waste treatment chamber has leaked and an alarm is issued;

[0012] Obtain the type of medical waste in the medical waste treatment chamber;

[0013] Determine the nature of the reactants generated during medical waste treatment based on the type of medical waste;

[0014] Retrieving all reactant diffusion models that match the properties of the reactants;

[0015] Determine the leakage of the medical waste treatment chamber according to all the retrieved reactant diffusion models;

[0016] Wherein, the negative pressure in the medical waste treatment chamber is formed by exhausting air through the exhaust device, and the leakage condition includes at least one of the leakage position, leakage rate and leakage amount.

[0017] In certain preferred embodiments, the pressure control method further comprises:

[0018] Determining whether the negative pressure value in the medical waste treatment chamber is less than a set lower limit value;

[0019] If the negative pressure value in the medical waste treatment chamber is less than the set lower limit value, the rotation speed of the air extraction device is reduced.

[0020] In certain preferred embodiments, the pressure control method further comprises:

[0021] After the set time has passed, if it is determined that the negative pressure value in the medical waste treatment chamber is less than or equal to the set upper limit value, the exhaust device is kept running at the preset speed.

[0022] In certain preferred embodiments, the reactant properties include pathogen aerosol properties, drug residual vapor properties, toxic chemical reactant properties, radioactive reactant properties, and non-toxic chemical reactant properties;

[0023] The reactant diffusion model includes a pathogen aerosol diffusion model, a drug residue vapor diffusion model, a toxic chemical reactant diffusion model, a radioactive reactant diffusion model and a non-toxic chemical reactant diffusion model.

[0024] In certain preferred embodiments, the pathogen aerosol diffusion model is:

[0025]

[0026] in, , and are the spatial coordinates, is in position and time The pathogen aerosol concentration, is the pathogen aerosol source emission intensity, is the average wind speed of pathogen aerosol diffusion, , and Pathogen aerosol along , and The diffusion coefficient of the axis.

[0027] In certain preferred embodiments, the drug residue vapor diffusion model is:

[0028]

[0029] in, , and are the spatial coordinates, is in position The residual vapor concentration of the drug, is the emission intensity of drug residual vapor source, is the average wind speed of drug residual vapor diffusion, , and The residual vapor of the drug is , and The diffusion coefficient of the axis, It is the height of the release point of the residual vapor of the drug.

[0030] In certain preferred embodiments, the toxic chemical reactant diffusion model is:

[0031]

[0032] in, , and are the spatial coordinates, is in position The concentration of toxic chemical reactants, is the average wind speed at which toxic chemical reactants diffuse, is the diffusion coefficient of the toxic chemical reactant, is the chemical reaction rate constant of the toxic chemical reactant, is the gradient operator, is the Laplace operator;

[0033] The non-toxic chemical reactant diffusion model is:

[0034]

[0035] in, , and are the spatial coordinates, is in position The concentration of non-toxic chemical reactants, is the average wind speed at which non-toxic chemical reactants diffuse, is the diffusion coefficient of the non-toxic chemical reactant, is the gradient operator, is the Laplace operator.

[0036] In certain preferred embodiments, the radioactive reactant diffusion model is:

[0037]

[0038] in, , and are the spatial coordinates, is in position and time The concentration of radioactive reactants, is the initial release of radioactive reactants, is the radioactive decay constant, is the average wind speed at which radioactive reactants diffuse, is the diffusion coefficient of the radioactive reactant.

[0039] In certain preferred embodiments, the pressure control method further comprises:

[0040] Obtaining the friction heat temperature, friction heat pressure, friction heat time and humidity of the medical waste when the medical waste treatment equipment treats the medical waste;

[0041] The sterilization effect of the medical waste treatment equipment is determined according to the friction heat temperature, the friction heat pressure, the friction heat time, the waste humidity and the negative pressure value in the medical waste treatment chamber.

[0042] In a second aspect, the present invention also provides a pressure control system based on a friction heat medical waste treatment device, the pressure control system comprising:

[0043] The first judgment module is used to judge whether the negative pressure value in the medical waste treatment chamber is greater than a set upper limit value;

[0044] An air extraction control module, which is used to increase the rotation speed of the air extraction device to a preset rotation speed when the negative pressure value in the medical waste treatment chamber is greater than the set upper limit value;

[0045] A second judgment module, which is used to judge whether the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value after a set time;

[0046] A leakage determination prompt module, which is used to determine that the medical waste treatment chamber has leaked and issue an alarm prompt when the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value;

[0047] An acquisition module, which is used to acquire the type of medical waste in the medical waste treatment chamber;

[0048] A determination module, which is used to determine the properties of reactants generated during the treatment of medical waste according to the type of medical waste;

[0049] A calling module, which is used to call all reactant diffusion models that meet the properties of the reactants;

[0050] A determination module, which is used to determine the leakage of the medical waste treatment chamber according to all the retrieved reactant diffusion models;

[0051] Wherein, the negative pressure in the medical waste treatment chamber is formed by exhausting air through the exhaust device, and the leakage condition includes at least one of the leakage position, leakage rate and leakage amount.

[0052] It can be seen from the above that the pressure control method and system based on the friction heat medical waste treatment equipment provided by the present invention have the following beneficial technical effects:

[0053] The present invention can monitor the negative pressure value in the medical waste treatment chamber in real time and set an early warning upper limit. It can respond quickly when the negative pressure is abnormal, effectively prevent equipment damage and leakage of harmful gases and particles, thereby ensuring the safety of the treatment process. At the same time, according to the dynamic change of the negative pressure value, the rotation speed of the exhaust device is intelligently adjusted to maintain the stability of the negative pressure environment in the treatment chamber, which not only promotes the full contact between the medical waste and the friction heat source, improves the treatment efficiency and quality, but also reduces the damage to the equipment caused by negative pressure fluctuations, extends the service life of the equipment and reduces maintenance costs. In addition, when the negative pressure continues to be abnormal, the present invention can accurately diagnose the leakage of the treatment chamber by comprehensively analyzing the type of medical waste, the properties of the reactants and the corresponding reactant diffusion model, providing a reliable basis for timely adjustment and prevention, and greatly improving the convenience and accuracy of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0055] Figure 1 It is a flow chart of the pressure control method based on the friction heat medical waste treatment equipment of the present invention;

[0056] Figure 2 It is a schematic structural diagram of the pressure control system of the friction heat medical waste treatment equipment of the present invention. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0058] Based on the problem pointed out in the background technology that the friction heat medical waste treatment equipment in the prior art does not effectively monitor the negative pressure environment of the medical waste treatment chamber, which may affect the treatment effect of medical waste and the safety needs to be improved. The present invention provides a pressure control method and system based on the friction heat medical waste treatment equipment, which aims to achieve effective monitoring of the negative pressure environment in the medical waste treatment chamber, ensure the treatment effect of medical waste and improve the safety of the equipment.

[0059] like Figure 1 As shown, the pressure control method based on the friction heat medical waste treatment equipment of the present invention includes:

[0060] Determine whether the negative pressure value in the medical waste treatment chamber is greater than the set upper limit value;

[0061] If the negative pressure value in the medical waste treatment chamber is less than or equal to the set upper limit value, then determine whether the negative pressure value in the medical waste treatment chamber is less than the set lower limit value;

[0062] If the negative pressure value in the medical waste treatment chamber is less than the set lower limit, the rotation speed of the air extraction device is reduced. In this case, it means that the negative pressure in the medical waste treatment chamber is excessive and needs to be adjusted.

[0063] If the negative pressure value in the medical waste treatment chamber is greater than or equal to the set lower limit value, the current speed of the exhaust device is maintained, that is, the medical waste treatment chamber is in a normal negative pressure environment, and the exhaust device maintains the current speed;

[0064] If the negative pressure value in the medical waste treatment chamber is greater than the set upper limit value, the speed of the air extraction device is increased to the preset speed. In this case, it means that the negative pressure in the medical waste treatment chamber is insufficient and the negative pressure needs to be adjusted;

[0065] After a set time, it is determined whether the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value;

[0066] If the negative pressure value in the medical waste treatment chamber is less than or equal to the set upper limit value, the air extraction device is kept running at the preset speed. In this case, it means that the negative pressure environment of the medical waste treatment chamber is adjusted to normal, the air extraction device can play a regulating role, and the air extraction device runs at the preset speed;

[0067] If the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value, it is determined that the medical waste treatment chamber has leaked and an alarm is issued. In this case, it means that the negative pressure in the medical waste treatment chamber is still insufficient, indicating that the negative pressure environment in the medical waste treatment chamber is still abnormal, and the air extraction device cannot play a regulating role. The medical waste treatment chamber has leaked. At this time, buzzer alarms, light alarms, vibration alarms and / or monitoring platform display alarms can be used to alert the operator;

[0068] Obtain the type of medical waste in the medical waste treatment chamber;

[0069] Determine the nature of the reactants generated during medical waste treatment based on the type of medical waste;

[0070] Preferably, the reactant properties include pathogen aerosol properties, drug residual vapor properties, toxic chemical reactant properties, radioactive reactant properties, and non-toxic chemical reactant properties;

[0071] Retrieve all reactant diffusion models that match the properties of the reactants;

[0072] Preferably, the reactant diffusion model includes a pathogen aerosol diffusion model, a drug residue vapor diffusion model, a toxic chemical reactant diffusion model, a radioactive reactant diffusion model, and a non-toxic chemical reactant diffusion model;

[0073] The leakage situation of the medical waste treatment chamber is determined based on the retrieved diffusion models of all reactants; wherein, the negative pressure in the medical waste treatment chamber is formed by exhausting air through a vacuum device, and the leakage situation includes at least one of the leakage position, leakage rate and leakage amount. Of course, it is preferred that the leakage situation includes the leakage position, leakage rate and leakage amount at the same time, so that the operator can handle it accurately and promptly.

[0074] In the above, the pathogen aerosol diffusion model is:

[0075]

[0076] in, , and are the spatial coordinates, is in position and time The pathogen aerosol concentration, is the pathogen aerosol source emission intensity, is the average wind speed of pathogen aerosol diffusion, , and Pathogen aerosol along , and The diffusion coefficient of the axis;

[0077] The drug residue vapor diffusion model is:

[0078]

[0079] in, , and are the spatial coordinates, is in position The residual vapor concentration of the drug, is the emission intensity of drug residual vapor source, is the average wind speed of drug residual vapor diffusion, , and The residual vapor of the drug is , and The diffusion coefficient of the axis, is the height of the release point of the residual vapor of the drug;

[0080] The diffusion model of toxic chemical reactants is:

[0081]

[0082] in, , and are the spatial coordinates, is in position The concentration of toxic chemical reactants, is the average wind speed at which toxic chemical reactants diffuse, is the diffusion coefficient of the toxic chemical reactant, is the chemical reaction rate constant of the toxic chemical reactant, is the gradient operator, is the Laplace operator;

[0083] The diffusion model of non-toxic chemical reactants is:

[0084]

[0085] in, , and are the spatial coordinates, is in position The concentration of non-toxic chemical reactants, is the average wind speed at which non-toxic chemical reactants diffuse, is the diffusion coefficient of the non-toxic chemical reactant, is the gradient operator, is the Laplace operator;

[0086] The radioactive reactant diffusion model is:

[0087]

[0088] in, , and are the spatial coordinates, is in position and time The concentration of radioactive reactants, is the initial release of radioactive reactants, is the radioactive decay constant, is the average wind speed at which radioactive reactants diffuse, is the diffusion coefficient of the radioactive reactant.

[0089] Through the above-mentioned pathogen aerosol diffusion model, drug residue vapor diffusion model, toxic chemical reactant diffusion model, radioactive reactant diffusion model and non-toxic chemical reactant diffusion model, it is possible to accurately judge the leakage of medical waste treatment chambers when friction heat treatment is performed on various types of medical waste. When various concentration sensors are provided outside the medical waste treatment chamber, various diffusion models of the present invention can be combined with corresponding concentration sensors for judgment, thereby improving the accuracy of leakage judgment, avoiding leakage omission due to concentration sensor detection failure and leakage false alarm due to large concentration sensor detection deviation, and various diffusion models of the present invention can solve the problem of no concentration sensor detection and The problem that concentration sensors cannot fully cover all layout positions. When the outside of the medical waste treatment cabin is not equipped with various concentration sensors or the categories of concentration sensors are not all included, the various diffusion models of the present invention can independently determine whether the medical waste treatment cabin is leaking. In actual applications, even if various concentration sensors or a certain type of concentration sensor are arranged, the concentration sensors are generally arranged at locations prone to leakage, and the locations where concentration sensors are not arranged often become detection blind spots, resulting in leakage that can only be detected to a certain extent or cannot be detected at all. The various diffusion models of the present invention can judge the leakage situation without blind spots, and can calculate the leakage rate and leakage amount while accurately locating the leakage position.

[0090] Taking the pathogen aerosol diffusion model as an example, in a possible scenario, medical waste containing pathogen aerosols is being processed inside the medical waste treatment chamber. The medical waste treatment chamber is a relatively sealed space, but there may be a risk of leakage. Multiple monitoring points are set outside the medical waste treatment chamber to detect whether there is a pathogen aerosol leakage. Each monitoring point has a corresponding pathogen aerosol concentration sensor and position coordinates. Each pathogen aerosol concentration sensor can detect the pathogen aerosol concentration at the corresponding position. Each position coordinate can calculate the corresponding pathogen aerosol concentration through the pathogen aerosol diffusion model. If the pathogen aerosol concentration detected by the pathogen aerosol concentration sensor and the concentration calculated by the pathogen aerosol diffusion model exceed the set threshold, it means that the monitoring point has indeed leaked, or it can be judged by the concentration change trend, such as comprehensively analyzing the concentration of each monitoring point. If the concentrations of multiple monitoring points are high and show a certain distribution pattern, and are consistent with the trend predicted by the pathogen aerosol diffusion model, then it can be more certain that the treatment chamber has leaked. The leakage rate can be calculated based on the concentration predicted by the model at different times, for example Two concentrations are calculated at 15 seconds and 20 seconds respectively, and the difference in concentration is compared with the time difference of 20-15=5 seconds to get the leakage rate. The leakage amount can be obtained by integration based on the volume of the medical waste treatment chamber and the specific location of the leakage point. It can be measured by wind speed sensor. , and are variables, which are related to and determined based on environmental conditions and / or other influencing factors, such as temperature, humidity, air pressure and other parameters, and the emission intensity of pathogen aerosol sources. This can be obtained by conducting experiments on different medical wastes containing pathogen aerosols. In another possible scenario, there are no pathogen aerosol concentration sensors around the medical waste treatment chamber or some locations lack pathogen aerosol concentration sensors. The concentration calculated by the pathogen aerosol diffusion model can be compared with the set threshold alone. When the set threshold is exceeded, it is judged that the medical waste treatment chamber has leaked, and the leak position can be located, and the leak rate and leak amount can be calculated, which is convenient for operators to carry out repairs or maintenance.

[0091] Similarly, the drug residue vapor diffusion model, toxic chemical reactant diffusion model, radioactive reactant diffusion model and non-toxic chemical reactant diffusion model of the present invention can also be combined with corresponding concentration sensors to determine whether leakage of corresponding reactants occurs in the medical waste treatment chamber, or can be used alone to determine whether leakage of corresponding reactants occurs in the medical waste treatment chamber.

[0092] In a preferred embodiment, the pressure control method of the present invention further comprises:

[0093] Obtain the friction heat temperature, friction heat pressure, friction heat time and humidity of medical waste when the medical waste treatment equipment treats medical waste;

[0094] The sterilization effect of the medical waste treatment equipment is determined based on the friction heat temperature, friction heat pressure, friction heat time, waste humidity and the negative pressure value in the medical waste treatment cabin.

[0095] More preferably, the sterilization effect of the medical waste treatment equipment is determined based on the following formula:

[0096] ;

[0097] in, To calculate the sterilization effect value, is the friction heat temperature, is the reference temperature, is the frictional thermal pressure, is the reference pressure, is the friction heat time, is the reference time, is the humidity of medical waste, is the negative pressure value in the medical waste treatment chamber, is the reference negative pressure value, , and are the coefficients, , and are indices respectively;

[0098] If the sterilization effect value If it is greater than or equal to the preset sterilization value, the medical waste treatment equipment is operated with the current operating parameters;

[0099] If the sterilization effect value If it is less than the preset sterilization value, the medical waste treatment equipment will adjust the current operating parameters.

[0100] It should be noted that the method of the present invention can be performed by a single device, such as a computer or a server. The method of the present invention can also be applied in a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the present invention, and the multiple devices will interact with each other to complete the described method.

[0101] It should be noted that the above specific embodiments of the present invention are described. Other embodiments are within the scope of the present invention. In some cases, the actions or steps recorded in the present invention can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the process depicted in the accompanying drawings does not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0102] Based on the same purpose, corresponding to any of the above-mentioned embodiments and methods, the embodiment of the present invention also provides a pressure control system based on a friction heat medical waste treatment device, such as Figure 2 As shown, the pressure control system includes:

[0103] The first judgment module 100 is used to judge whether the negative pressure value in the medical waste treatment chamber is greater than a set upper limit value;

[0104] The air extraction control module 200 is used to increase the rotation speed of the air extraction device to a preset rotation speed when the negative pressure value in the medical waste treatment chamber is greater than a set upper limit value;

[0105] The second judgment module 300 is used to judge whether the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value after a set time;

[0106] A leakage determination prompt module 400, which is used to determine that the medical waste treatment chamber has leaked and issue an alarm prompt when the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value;

[0107] An acquisition module 500 is used to acquire the type of medical waste in the medical waste treatment chamber;

[0108] A determination module 600, which is used to determine the properties of reactants generated during the treatment of medical waste according to the type of medical waste;

[0109] A calling module 700 is used to call all reactant diffusion models that conform to the properties of the reactants;

[0110] A determination module 800, which is used to determine the leakage of the medical waste treatment chamber according to all the retrieved reactant diffusion models;

[0111] Wherein, the negative pressure in the medical waste treatment chamber is formed by exhausting air through an exhaust device, and the leakage situation includes at least one of the leakage position, leakage rate and leakage amount.

[0112] For the convenience of description, the above system is described as being divided into various modules according to their functions. Of course, when implementing the present invention, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0113] The system of the above embodiment is used to implement the corresponding control method in the above embodiment, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0114] For the convenience of description, the above system is described by dividing it into various units according to its functions. Of course, when implementing the present application, the functions of each unit can be implemented in the same or multiple software and / or hardware.

[0115] Those skilled in the art will appreciate that the embodiments of the present invention may be provided as methods, systems, etc. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects.

[0116] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0117] Each embodiment of the present invention is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0118] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0119] While the invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0120] One or more embodiments of the present invention are intended to cover all such replacements, modifications and variations that fall within the broad scope of the present invention. Therefore, any omissions, modifications, equivalent replacements, improvements, etc. made within the spirit and principles of one or more embodiments of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure control method for medical waste treatment equipment based on friction heat, characterized in that: The pressure control method comprises: Determine whether the negative pressure value in the medical waste treatment chamber is greater than the set upper limit value; If the negative pressure value in the medical waste treatment chamber is greater than the set upper limit value, the rotation speed of the air extraction device is increased to a preset rotation speed; After a set time, determine whether the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value; If the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value, it is determined that the medical waste treatment chamber has leaked and an alarm is issued; Obtain the type of medical waste in the medical waste treatment chamber; Determine the nature of the reactants generated during medical waste treatment based on the type of medical waste; Retrieving all reactant diffusion models that match the properties of the reactants; Determine the leakage of the medical waste treatment chamber according to all the retrieved reactant diffusion models; Wherein, the negative pressure in the medical waste treatment chamber is formed by exhausting air through the exhaust device, and the leakage condition includes at least one of the leakage position, leakage rate and leakage amount; The properties of the reactants include properties of pathogen aerosols, properties of drug residual vapors, properties of toxic chemical reactants, properties of radioactive reactants, and properties of non-toxic chemical reactants; The reactant diffusion model includes a pathogen aerosol diffusion model, a drug residue vapor diffusion model, a toxic chemical reactant diffusion model, a radioactive reactant diffusion model and a non-toxic chemical reactant diffusion model; The pathogen aerosol diffusion model is: in, , and are the spatial coordinates, is in position and time The pathogen aerosol concentration, is the pathogen aerosol source emission intensity, is the average wind speed of pathogen aerosol diffusion, , and Pathogen aerosol along , and The diffusion coefficient of the axis.

2. The pressure control method based on friction heat medical waste treatment equipment according to claim 1 is characterized in that: The pressure control method further comprises: Determining whether the negative pressure value in the medical waste treatment chamber is less than a set lower limit value; If the negative pressure value in the medical waste treatment chamber is less than the set lower limit value, the rotation speed of the air extraction device is reduced.

3. The pressure control method based on friction heat medical waste treatment equipment according to claim 1 is characterized in that: The pressure control method further comprises: After the set time has passed, if it is determined that the negative pressure value in the medical waste treatment chamber is less than or equal to the set upper limit value, the exhaust device is kept running at the preset speed.

4. The pressure control method based on friction heat medical waste treatment equipment according to claim 1 is characterized in that: The drug residue vapor diffusion model is: in, , and are the spatial coordinates, is in position The residual vapor concentration of the drug, is the emission intensity of drug residual vapor source, is the average wind speed of drug residual vapor diffusion, , and The residual vapor of the drug is , and The diffusion coefficient of the axis, It is the height of the release point of the residual vapor of the drug.

5. The pressure control method based on friction heat medical waste treatment equipment according to claim 1 is characterized in that: The toxic chemical reactant diffusion model is: in, , and are the spatial coordinates, is in position The concentration of toxic chemical reactants, is the average wind speed at which toxic chemical reactants diffuse, is the diffusion coefficient of the toxic chemical reactant, is the chemical reaction rate constant of the toxic chemical reactant, is the gradient operator, is the Laplace operator; The non-toxic chemical reactant diffusion model is: in, , and are the spatial coordinates, is in position The concentration of non-toxic chemical reactants, is the average wind speed at which non-toxic chemical reactants diffuse, is the diffusion coefficient of the non-toxic chemical reactant, is the gradient operator, is the Laplace operator.

6. The pressure control method based on friction heat medical waste treatment equipment according to claim 1 is characterized in that: The radioactive reactant diffusion model is: in, , and are the spatial coordinates, is in position and time The concentration of radioactive reactants, is the initial release of radioactive reactants, is the radioactive decay constant, is the average wind speed at which radioactive reactants diffuse, is the diffusion coefficient of the radioactive reactant.

7. The pressure control method based on friction heat medical waste treatment equipment according to any one of claims 1 to 6, characterized in that: The pressure control method further comprises: Obtaining the friction heat temperature, friction heat pressure, friction heat time and humidity of the medical waste when the medical waste treatment equipment treats the medical waste; The sterilization effect of the medical waste treatment equipment is determined according to the friction heat temperature, the friction heat pressure, the friction heat time, the waste humidity and the negative pressure value in the medical waste treatment chamber.

8. A pressure control system based on friction heat medical waste treatment equipment, characterized in that: The pressure control system comprises: The first judgment module is used to judge whether the negative pressure value in the medical waste treatment chamber is greater than a set upper limit value; An air extraction control module, which is used to increase the rotation speed of the air extraction device to a preset rotation speed when the negative pressure value in the medical waste treatment chamber is greater than the set upper limit value; A second judgment module, which is used to judge whether the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value after a set time; A leakage determination prompt module, which is used to determine that the medical waste treatment chamber has leaked and issue an alarm prompt when the negative pressure value in the medical waste treatment chamber is still greater than the set upper limit value; An acquisition module, which is used to acquire the type of medical waste in the medical waste treatment chamber; A determination module, which is used to determine the properties of reactants generated during the treatment of medical waste according to the type of medical waste; A calling module, which is used to call all reactant diffusion models that meet the properties of the reactants; A determination module, which is used to determine the leakage of the medical waste treatment chamber according to all the retrieved reactant diffusion models; Wherein, the negative pressure in the medical waste treatment chamber is formed by exhausting air through the exhaust device, and the leakage condition includes at least one of the leakage position, leakage rate and leakage amount; The properties of the reactants include properties of pathogen aerosols, properties of drug residual vapors, properties of toxic chemical reactants, properties of radioactive reactants, and properties of non-toxic chemical reactants; The reactant diffusion model includes a pathogen aerosol diffusion model, a drug residue vapor diffusion model, a toxic chemical reactant diffusion model, a radioactive reactant diffusion model and a non-toxic chemical reactant diffusion model; The pathogen aerosol diffusion model is: in, , and are the spatial coordinates, is in position and time The pathogen aerosol concentration, is the pathogen aerosol source emission intensity, is the average wind speed of pathogen aerosol diffusion, , and Pathogen aerosol along , and The diffusion coefficient of the axis.

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