44 results about "Hydrogen Peroxide Sterilization" patented technology

The embodiment of the invention discloses a correction method for the detection humidity of a sterile isolation environment. The correction method comprises the following steps: acquiring the internal saturated water pressure of a sterile isolation area through the detection temperature of a temperature sensor; hydrogen peroxide water vapor partial pressure of the sterile isolation area is obtained through the detection concentration of a hydrogen peroxide concentration sensor; the moisture partial pressure of the sterile isolation area is obtained through the detection humidity of a humidity sensor with a coating and the internal saturated water pressure; calculating the mixed humidity of water vapor and hydrogen peroxide in the sterile isolation area according to the internal saturated water pressure, the hydrogen peroxide water-vapor partial pressure and the water-vapor partial pressure; and correcting the display humidity of the display according to the mixed humidity to enable the display to display the corrected display humidity. According to the embodiment of the invention, the humidity sensor with the coating can accurately detect the mixed humidity of water and hydrogen peroxide under the condition of hydrogen peroxide sterilization, and the problem that the difference between the display humidity of the humidity sensor with the coating and the actual humidity in a sterile isolation area in an isolator is large in the prior art is solved.

The utility model relates to a visual hydrogen peroxide sterilization verification device, and belongs to the technical field of medical instruments. Comprising a partition plate, shells symmetrically arranged on the two sides of the partition plate and a resistance hollow pipe, the two shells are in sealed connection with the partition plate, cabins are arranged in the middles of the shells, through holes corresponding to the cabins are formed in the partition plate, the two cabins define a cavity, an indicator is loaded in the cavity, and one end of each cabin is communicated with one end of the resistance hollow pipe. The resistance hollow pipe surrounds the periphery of the cabin body and is arranged in a continuous concentric-square shape, and the other end of the resistance hollow pipe is communicated with the outside. The device is simple in structure, the production cost is reduced, the sterilization effect is verified by simulating the most difficult sterilization state, and the verification reliability is improved, so that the purpose of batch release is achieved.

The invention discloses a residual gas treatment device of a hydrogen peroxide sterilizer, and relates to the technical field of gas treatment devices.The residual gas treatment device is technically characterized by comprising a treatment shell, a gas inlet pipe is fixedly connected to one side of the treatment shell, an exhaust pipe is fixedly connected to the upper end of the treatment shell, and a filtering assembly is arranged on one side of the gas inlet pipe; a plurality of catalyst plates distributed in a crossed mode are fixedly connected to the inner wall of the treatment shell, a preheating assembly is fixedly connected to the outer side wall of the treatment shell, the filtering assembly comprises a filtering box, a filtering net is installed on the inner wall of the frame, and a baffle is fixedly connected to one side of the filtering net; a cleaning assembly is arranged on the inner wall of the filter box and located on one side of the filter screen. Residual gas entering the treatment shell is preliminarily filtered through the filtering assembly, impurities such as solid particles in the gas can be effectively intercepted, pore channel blockage and active site loss caused by the fact that the impurities make contact with the catalyst plate are avoided, and it is ensured that the catalyst plate is always kept in an efficient catalysis state.

1. The name of the design product: hydrogen peroxide sterilizer (L200). 2. The use of the design product: for hydrogen peroxide sterilization equipment. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The invention discloses a chemical indicator card for monitoring low-temperature steam formaldehyde sterilization, which belongs to the technical field of medical treatment and public health sterilization monitoring, and is composed of a Tyvek paper carrier and chemical indicator ink mixed by multiple chemicals, and the carrier has the length of 70.4 + / -1mm and the width of 8.8 + / -0.5 mm; the indicating ink can generate controllable color change according to the concentration, temperature and time of formaldehyde sterilization by adjusting the component proportion; the indicator card is matched with a semicircular loading box made of an ABS (Acrylonitrile Butadiene Styrene) material, a polytetrafluoroethylene tube with a specific size is arranged in the box, when the color is successfully changed, 0.9 ml of hydrogen peroxide is injected, and sterilization is carried out for 210 seconds, and when the color is failed, 0.6 ml of hydrogen peroxide is injected at the same temperature at the same time. The indicator card is simple in structure and convenient to use, adapts to PCD scenes, fills up related gaps in China, improves the sterilization monitoring accuracy and provides guarantee for sterilization of lumen type instruments.

The utility model belongs to the technical field of sterilization verification devices, and particularly relates to a universal hydrogen peroxide sterilization chemical verification device, which comprises a tube body, a sealing plug and at least two verification tube groups with different lengths, the sealing plug is sealed and detachably installed at the opening end of the inner cylinder, the shell is tightly and rotatably arranged outside the inner cylinder in a sleeving mode, the verification pipe sets are fixedly connected to the shell, each verification pipe set comprises two thin pipes with the same length, the thin pipes are communicated with the interior of the shell, the two thin pipes are connected to the two ends of the shell respectively, and the two thin pipes are communicated with the interior of the shell. The two ends of the inner cylinder are each provided with a hole channel, and the two hole channels are correspondingly formed in the positions of the two thin pipes of the verification pipe sets on the shell respectively. The verification device can be suitable for lumen instruments with different lengths and structures, the verification device does not need to be replaced, the operation process is simplified, the verification efficiency and accuracy are improved, and the labor intensity of operators is reduced.

The utility model discloses a hydrogen peroxide sterilizer with a filtering function, which comprises an air input pipe, and is characterized in that the middle of the air input pipe is fixedly connected with a pressure gauge, the bottom of the air input pipe is in threaded connection with a sanitary ball valve, the lower end of the sanitary ball valve is fixedly connected with a hose connecting piece, and the hose connecting piece is connected with the pressure gauge. A connecting hose is arranged at the bottom of the hose connecting piece, a front air filter is arranged on one side of the connecting hose, an air output pipe is connected to one side of the front air filter, a hydrogen peroxide sterilization device is connected to the other side of the air output pipe, and a rubber gasket is fixedly connected to one end of the air input pipe. The front air filter is provided with a vacuum pressure gauge, the air input pipe and the air output pipe are both hoses, and the problems of an air filtering device of a current hydrogen peroxide sterilizer are solved.

The invention belongs to the technical field of disinfection and sterilization, and particularly relates to a vaporized hydrogen peroxide sterilization device which is characterized in that the vaporized hydrogen peroxide sterilization device comprises a base and a transfer tank, the transfer tank is rotatably connected to the top of the base, a spray pipe is arranged at the bottom of the transfer tank, a limiting plate is fixedly connected to one side of the top of the base, and a pressing shell is slidably connected to one side of the limiting plate; the transfer tank is sleeved with the pressing shell, a pressing rod is fixedly connected to the outer wall of the top of the pressing shell, a first steam inlet pipe is inserted into the top of one side of the pressing shell, and a steam inlet is fixedly connected to the end, away from the pressing shell, of the first steam inlet pipe. According to the hydrogen peroxide spraying device, the pressing shell is driven by the pressing rod, and the transfer tank and the spraying pipe can spray vaporized hydrogen peroxide outwards in a rotating state through a series of transmission structures. By means of the design, continuous rotary spraying of the spraying pipe is achieved, a sterilization area can be covered in all directions, sterilization dead angles possibly existing in traditional fixed-angle spraying are avoided, and the sterilization efficiency and effect are improved.

The utility model discloses a dry type hydrogen peroxide sterilization system, which belongs to the technical field of sterilization facilities and comprises hydrogen peroxide sterilization equipment and a plurality of humidity sensors in a sterile workshop, and a heater, an evaporator and a dehumidifier are arranged in the hydrogen peroxide sterilization equipment. Gas in the sterile workshop is dehumidified through a dehumidifier, damp and hot gas is exhausted, and liquid hydrogen peroxide is vaporized into VHP gas through an evaporator; the heater is used for preheating the evaporator and providing a heat source for the dehumidifier, so that regeneration of an internal dehumidizer is realized; fresh air is supplemented to the sterile workshop through the fresh air pipe, and pressure balance of the sterile workshop is guaranteed. According to the hydrogen peroxide sterilization equipment, dehumidification can be continuously carried out in the sterilization process through the dehumidifier in the hydrogen peroxide sterilization equipment, the humidity of a sterile workshop is detected in real time through the humidity sensor, and it is guaranteed that the humidity of a space to be sterilized is always lower than a risk value Rh0, so that condensation is avoided, a color steel plate and equipment cannot be corroded, and the service life of the hydrogen peroxide sterilization equipment is prolonged. And the sterilization process is safer and more reliable.

The present invention is of a sterilizer system for providing a steam sterilization cycle and a vaporized hydrogen peroxide sterilization cycle. The sterilizer system features a sterilization chamber for sterilizing at least one item, a system for providing steam sterilization to the sterilization chamber and a system for providing vaporized hydrogen peroxide sterilization to the sterilization chamber. In addition, the present invention is of methods of sterilization of at least one item with a steam sterilization cycle or a vaporized hydrogen peroxide sterilization cycle using the sterilizer system of the present invention.

The utility model discloses a stably supported hydrogen peroxide sterilizer, which is provided with a sterilizer body, the bottom of the sterilizer body is connected with a detachable base, and the lower end face of the base is provided with moving wheels; comprising a locking mechanism which is arranged at the edge of the top of the base and can stably limit a sterilizer body in the base; the radiator is installed on the bottom face of the base, the air outlet end of the base communicates with a fixing cavity, and the fixing cavity is formed in the base; the guide mechanism is arranged in the base, and the guide mechanism and the sterilizer body are matched with each other to be used for adjusting whether air flows out of the radiator or not. According to the hydrogen peroxide sterilizer capable of being stably supported, after the sterilizer is mounted on the base, a structure for locking the sterilizer is arranged, so that the sterilizer is more stable when the device moves, and a space is formed between the sterilizer and the base, so that heat generated during operation of the sterilizer can be discharged from the bottom, and the heat dissipation effect of the sterilizer is improved.

The present application provides a concentration detection method and system for a hydrogen peroxide sterilization system, which relates to the technical field of hydrogen peroxide concentration detection. The method collects absorbance data at a preset characteristic wavelength during color development, determines the concentration equilibrium constraint when correcting the current concentration in the hydrogen peroxide sterilization chamber through the absorbance data and the conditioned environmental parameters in the sterilization chamber, determines the fitted concentration information between the extreme value change degrees of the multi-salt solution at constant humidity and dew point equilibrium based on the color development mutual interference deviation, synchronously couples the fitted concentration information, and obtains the coupling compensation trend when different concentrations are colored in the hydrogen peroxide sterilization chamber; generates the color development registration index when the equivalent concentration of the hydrogen peroxide solution produces a color development peak offset based on the concentration equilibrium constraint and the coupling compensation trend, and performs a collaborative judgment. The present application can dynamically compensate the color development signal of the hydrogen peroxide solution under the synergistic influence of multiple salt ions and constant humidity and dew point equilibrium to improve the stability of concentration detection in the sterilization chamber.

The utility model discloses a hydrogen peroxide sterilization device, comprising a sterilizer body, a sterilization chamber is arranged in the sterilizer body, a can inserting slot is arranged on the top surface of the sterilizer body, the number of the can inserting slots is two, and the two can inserting slots are arranged on two sides, a sterilization tank and a clean water tank are inserted in the two can inserting slots respectively, the bottoms of the two can inserting slots are interconnected and provided with liquid pipelines, an atomizing nozzle is arranged at the middle position of the liquid pipeline, a micro air pump is arranged above the atomizing nozzle, the atomizing nozzle is connected with the micro air pump through an air pressure pipeline, small hot air blowers are respectively arranged at the angles of the two walls on the top of the sterilization chamber, an exhaust mechanism is arranged above the small hot air blower, and a liquid discharge port is arranged on the bottom surface of the sterilization chamber; the utility model adopts the combination of the atomizing nozzle and the small hot air blower, utilizes the heat flow to evenly distribute the sterilizing hydrogen peroxide to perform more effective sterilization, and the exhaust mechanism is arranged to help discharge the residual gas and moisture, maintain the cleanliness of the sterilization environment and reduce the safety hazard caused by the excessive decomposition of oxygen.

The utility model discloses a hydrogen peroxide sterilization chemical verification device with multiple detection positions and belongs to the technical field of medical instruments. Which comprises a substrate (2), a resistance pipe is arranged on the surface of the substrate (2), one end of the resistance pipe is communicated with the outside, the other end of the resistance pipe is connected with detection positions, and chemical indicator cards are arranged in the detection positions, and is characterized in that a plurality of detection positions are arranged on the surface of the substrate (2), and the resistance pipe is simultaneously connected with the plurality of detection positions which are arranged at intervals on an extension path of the resistance pipe. According to the hydrogen peroxide sterilization chemical verification device with the multiple detection positions, the multiple spaced detection positions are arranged in the resistance pipe, and the sterilization effects of different sterilization procedures can be verified at the same time, so that the hydrogen peroxide sterilization chemical verification device can meet the requirements of different scenes. The upper shell and the lower shell are made of transparent materials, so that the detection position is designed visually, and the sterilization effect can be judged more visually.

The present application relates to a kind of sterile composite film for hydrogen peroxide sterilization and its preparation method and application.The sterile composite film includes surface layer, nylon layer and polyethylene layer sequentially stacked from outside to inside;The polyethylene layer includes heat-seal layer, intermediate layer and composite layer sequentially arranged from inside to outside;The heat-seal layer includes acidic resin and metallocene polyethylene, and the heat-seal layer is away from the side of intermediate layer as a corona treatment surface.The sterile composite film has excellent interlayer bonding force, good surface wettability, high barrier property, reliable heat-sealability, good yellowing resistance and low odor, and can be well applied to online hydrogen peroxide sterilization.

The invention discloses a preparation method of a microbial standard substance for characterizing the sterilization performance of hydrogen peroxide, and belongs to the technical field of biological detection.The preparation method comprises the following steps that S1, raw materials are selected, specifically, indicator microorganisms, a carrier, modified chitosan, modified mesoporous nano-silica and tannic acid are included; s2, preparing a composite protection solution: dissolving the modified chitosan in a phosphate buffer solution, and adding a tannic acid solution; then adding the modified mesoporous nano silicon dioxide; s3, preparing a spore protection suspension; s4, inoculating and drying the carrier; and S5, packaging and storing. The method solves the problems of inaccurate, unstable and unreliable mass value of the microbial standard substance in the existing hydrogen peroxide sterilization performance evaluation.

The invention provides a hydrogen peroxide cold evaporation sterilization system, which relates to the technical field of hydrogen peroxide sterilization and comprises a liquid storage device, a cold evaporation device, a sterilization bin, a circulating fan and an ionization device. Wherein the liquid storage device is used for storing a hydrogen peroxide solution; the cold evaporation device is connected with the liquid storage device and the compressed air source and is used for atomizing the hydrogen peroxide solution into a dry fog state; the sterilization bin is used for containing to-be-sterilized materials, the air inlet end of the sterilization bin is communicated with the cold evaporation device, and the air outlet end is communicated with the cold evaporation device through the circulating fan to form a circulating air path; the ionization device is at least partially arranged in the sterilization bin and is used for ionizing the hydrogen peroxide in the dry fog state so as to increase the concentration of free radicals. Therefore, the sterilizing agent has the advantages of being capable of compensating free radical decay, improving free radical concentration and being stable in sterilizing effect.

This utility model provides a combined hydrogen peroxide and formaldehyde disinfection device, belonging to the field of disinfection device technology. It includes a chassis, a liquid storage system, and a distribution and transmission system. The liquid storage system comprises two storage tanks: a first storage tank and a second storage tank. The first storage tank contains hydrogen peroxide sterilization solution, and the second storage tank contains formaldehyde solution. Both the first and second vaporization delivery pipes are connected to the air conditioning duct. The beneficial effects of this utility model are: this combined disinfection device integrates two independent vaporization generation systems, combining hydrogen peroxide sterilization and formaldehyde fumigation functions into one. Furthermore, targeting the toxic gases remaining after formaldehyde sterilization, it utilizes the highly reactive hydroxyl radicals (·OH) generated after hydrogen peroxide vaporization to initiate a chain reaction with formaldehyde molecules in the air. This significantly shortens the ventilation and residual formaldehyde removal time after sterilization, reducing the harm to operators and environmental pollution caused by residual formaldehyde.

The application discloses a kind of microbial standard substance preparation methods of characterizing hydrogen peroxide sterilization performance, belong to biological detection technical field, comprising the following steps: S1, raw material selection: including indicating microorganism, carrier, modified chitosan, modified mesoporous nanometer silicon dioxide and tannic acid;S2, preparation composite protective solution: modified chitosan is dissolved in phosphate buffer solution, add tannic acid solution;Again add modified mesoporous nanometer silicon dioxide;S3, preparation spore protection suspension;S4, the inoculation and drying of carrier;S5, packaging and storage;The application solves the problem that microbial standard substance quality value is not accurate, unstable, unreliable in the existing hydrogen peroxide sterilization performance evaluation.

The invention relates to a rechargeable portable hydrogen peroxide plasma surgical instrument sterilization device, and belongs to the technical field of hydrogen peroxide sterilization devices.The rechargeable portable hydrogen peroxide plasma surgical instrument sterilization device comprises a packaging box, a box door is hinged to the top of the packaging box through hinges, a sterilization mechanism is installed in the packaging box, and a portable mechanism is installed on the outer side of the packaging box; the sterilization mechanism comprises a heat dissipation hole formed in the left side of the packaging box, a hydrogen peroxide injection hole is formed in the left side of the packaging box, an external buckle is arranged between the opposite sides of the packaging box and the box door, a handle is arranged on the front face of the packaging box, and an air circulation inlet and a hydrogen peroxide outlet are formed in the right side wall of the packaging box. And a cooling fan is fixedly mounted on the left inner side wall of the packaging box. The rechargeable portable hydrogen peroxide plasma surgical instrument sterilization device is convenient to carry, and can be powered by a self power supply and an external power supply at the same time, so that instrument sterilization can be carried out on a disaster rescue site without depending on water and electricity.

The invention relates to a special storage bag for a platelet-rich plasma preparation device, which belongs to the technical field of biomedicine and comprises an upper bag and a lower bag which are connected through a sealing structure. The bag surface of the upper bag is made of dialyzing paper permeable to sterilization gas, and the upper bag is used for treating contents in the upper bag in a gas permeation sterilization mode; the bag surface of the lower bag is made of a chemical corrosion-resistant polyethylene material and is used for treating the outer part of the lower bag in a hydrogen peroxide sterilization manner; the sealing structure is an openable sealing structure; the upper bag is made of dialyzing paper permeable to sterilizing gas, the lower bag is made of a polyethylene material resistant to chemical corrosion, and an ethylene oxide gas sterilization mode and a hydrogen peroxide sterilization mode are matched respectively, so that synchronous or step-by-step sterile treatment of contents in the upper bag and the outer part of the lower bag is realized; the risk of cross contamination caused by repeated plasma transfer in the traditional preparation process is avoided, the operation process is simplified, and the preparation efficiency is improved.

An ultrasonic-assisted hydrogen peroxide sterilization method and device are provided. The sterilization device includes a vaporization chamber, which has an inlet at an upper side and an outlet at a lower side, and a packaging film can be extended into the vaporization chamber from the inlet and extended out of the vaporization chamber from the outlet. An ultrasonic atomizer is arranged at a top of the vaporization chamber, which is externally connected to a liquid storage tank through a pipeline with a valve, liquid hydrogen peroxide is stored in the liquid storage tank, and the liquid hydrogen peroxide is atomized into hydrogen peroxide steam through an ultrasonic atomizer vibrator. A slit nozzle is arranged at an atomization outlet of the ultrasonic atomizer, through which the hydrogen peroxide steam is sprayed on a surface of the packaging film in the vaporization chamber, thus achieving rapid sterilization of the packaging film.

The utility model provides a portable hydrogen peroxide space sterilizer which relates to the technical field of hydrogen peroxide sterilization and comprises a shell, a disinfectant bottle, a fan, a nozzle, a steam outlet and an air outlet, a containing groove is formed in the side portion of the shell, a liquid bottle connector used for being connected with the disinfectant bottle is formed in the containing groove, a vaporization cavity is formed in the shell, and the fan is arranged in the vaporization cavity. The air outlet surrounds the interior of the vaporization cavity and is connected with the draught fan, the nozzle is arranged in the vaporization cavity and is connected with the liquid bottle connector, the steam outlet corresponds to the vaporization cavity, and the disinfection device is characterized in that a supporting assembly used for assisting installation of a disinfectant bottle is arranged in the containing groove. According to the portable hydrogen peroxide space sterilizer, when a disinfectant bottle is installed, only the disinfectant bottle needs to be placed on the two supporting rollers, the top of the disinfectant bottle is pressed by a hand, the disinfectant bottle is pushed upwards to be fixed to a liquid bottle connector, then the disinfectant bottle is twisted in the screwing direction, the disinfectant bottle is screwed into the liquid bottle connector, and the two hands do not need to stretch into the two sides of the disinfectant bottle.

The utility model discloses a hydrogen peroxide sterilizer for disinfectant gasification, which comprises a displacement box, a box cover is fixedly mounted on the side surface of the displacement box, a spraying cylinder is mounted at the upper end of the displacement box, a fan is fixedly mounted in the displacement box, an atomizing mechanism is arranged in the displacement box, and a water outlet is formed in the upper end of the displacement box. The device is used for realizing constant-temperature stable gasification of the hydrogen peroxide solution. According to the hydrogen peroxide sterilizer for disinfectant gasification, the heating disc is driven by the rotating disc to rotate, and the contact column is in contact with the contact plate to be electrified and started, so that the temperature of the heating disc is appropriate when the heating disc rotates to the position below the dropping funnel, and the evaporation efficiency of liquid hydrogen peroxide is improved; the heating speed is guaranteed in the mode that the multiple heating discs conduct evaporation alternately, gaseous hydrogen peroxide generated in the displacement box is exhausted upwards to the fan through rotation of the flow guide blades, and the situation that airflow driven by the fan influences the temperature of the heating discs is avoided.

The utility model discloses a hydrogen peroxide sterilizer with a rotating function, and relates to the technical field of hydrogen peroxide sterilization. The device comprises a sterilization box, a plurality of supporting parts are arranged on the side wall of the sterilization box, the upper side of the sterilization box is open, a sealing mechanism is arranged on the open side of the sterilization box, a feeding mechanism is arranged on one side of the sterilization box, and a hydrogen peroxide concentration detector is fixedly installed on the side wall of the sterilization box. A control mechanism is arranged on the side wall of the sterilization box, the control mechanism is electrically connected with the feeding mechanism, and a rotary power mechanism is arranged on the side wall of the bottom end of the sterilization box. According to the utility model, the disinfection effects of the solution on each area of the article are approximately the same, so that the situation that the local disinfection is not in place is avoided, and the disinfection effects of the solution on each area of the article are approximately the same, so that the situation that the local disinfection is not in place is avoided.

The utility model discloses a double-layer sealed hydrogen peroxide sterilization cabinet, and relates to the technical field of sterilization equipment. The double-layer sealed hydrogen peroxide sterilization cabinet comprises a sealing box, an outer sealing door, a drawing basket and an inner sealing door, the outer sealing door is connected to the outer side of the sealing box, the drawing basket and the inner sealing door are located on the inner side of the sealing box, the inner sealing door is located on the outer side of the drawing basket, and the outer sealing door comprises a first door plate. The outer side of the first door plate is connected with a first lantern ring. According to the double-layer sealed hydrogen peroxide sterilization cabinet, the outer sealing door and the inner sealing door are arranged, the first sealing ring is clamped to the inner side of the outer sealing door, the second sealing ring is connected to the outer side of the inner sealing door in a sleeving mode, the first sealing ring is used for abutting against the shell for sealing, the second sealing ring is used for abutting against the sterilization box for sealing, and the sterilization box is subjected to double sealing; the sealing effect is good; and sealing is conducted in an abutting mode, abrasion of a sealing piece is greatly reduced, frequent replacement of the sealing ring is avoided, and the use cost is reduced.

1. The name of the design product: dry fog hydrogen peroxide sterilizer (G300). 2. The use of the design product: for dry fog hydrogen peroxide sterilization equipment. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model discloses a hydrogen peroxide control device used on an aseptic packaging machine, and belongs to the field of aseptic packaging. The control device comprises a hydrogen peroxide sterilization pool used for sterilization of packaging materials, a water bath heating tank used for purifying polluted hydrogen peroxide and a circulating pump arranged between the hydrogen peroxide sterilization pool and the water bath heating tank and used for hydrogen peroxide circulation, and the water bath heating tank comprises an outer layer and an inner layer suspended in the outer layer. The open end of the outer layer is fixedly connected with the open end of the inner layer. According to the hydrogen peroxide control device used on the sterile packaging machine, hydrogen peroxide is indirectly heated and purified through the water bath heating tank, it is guaranteed that the hydrogen peroxide is recycled within the constant safe temperature range, impurities and waste gas in the hydrogen peroxide are effectively removed, the purity of the hydrogen peroxide in the hydrogen peroxide sterilization pool is maintained, and the continuous and stable sterilization effect is guaranteed.

The utility model discloses a freeze dryer with hydrogen peroxide sterilization, which comprises a freeze-drying component, a hydrogen peroxide sterilization component, a hydrogen peroxide sterilization component and a hydrogen peroxide sterilization component, and the freeze-drying component comprises a support frame and a placing tray positioned on the surface of the support frame; the limiting assembly comprises a limiting frame, a limiting plate, a connecting column and a movable frame; the limiting frame is fixed to the upper surface of any set of containing discs, the limiting plate is slidably connected to the interior of the limiting frame, the connecting column is fixed to the outer surface of the limiting plate, the movable frame is fixed to the outer surface of the supporting frame, and the connecting column is located in the movable frame. According to the scheme, through the arranged limiting assembly, when a containing disc is placed on one layer of a supporting frame, pushing force is applied to a connecting column, the connecting column moves in a movable frame, a limiting plate is pushed into a limiting frame, under the action of a rotating column, turning force is applied to a connecting rod, and one side of the connecting rod is clamped and fixed into the connecting frame. And each layer of placing disc is stably fixed at a required position, so that the temperature and the vacuum degree uniformly act on each sample.

The invention discloses a hydrogen peroxide sterilization method which comprises the following steps: calculating the actual flow of a delivery pump according to the actual consumption of hydrogen peroxide obtained by weighing in a container in unit time; according to the ratio of the actual rotating speed to the actual flow of the conveying pump, the actual slope K1 of the rotating speed-flow curve of the conveying pump is obtained; obtaining a target flow according to the ratio of the set target consumption to the set target time of the hydrogen peroxide; according to the difference value between the set target consumption and the actual consumption of the hydrogen peroxide, obtaining the target consumption which is lacked currently; deviation flow is obtained according to the ratio of the lacked target consumption to the remaining target time; summing the target flow and the deviation flow to obtain corrected flow; the corrected rotating speed of the conveying pump is obtained according to the ratio of the corrected flow to the actual slope K1; according to the ratio of the corrected flow to the corrected rotating speed, the corrected slope K2 of the corrected rotating speed-flow curve of the conveying pump is obtained. The hydrogen peroxide sterilization method can be repeatedly carried out, and the injection accuracy and stability can be improved.