CN201049080Y - Ozone sterilization cabinet - Google Patents

Abstract

The utility model provides a sterilization cabinet which comprises an ozone generator, a sterilization filter, an ozone tail gas decomposer, a vacuum pressure pump, a humidity regulator and a PLC controller. The vacuum pressure pump can be used to pump the cabinet into vacuum, the ozone generator works with certain pressure, so the concentrate of the ozone can be improved to ensure that the ozone can quickly permeate the interior of the container to be disinfected to achieve the effect of synchronous disinfection of the inner surface and the outer surface; with the humidity regulator, the humidity in the cabinet is regulated, and the effect of disinfection and sterilization can be improved.

Description

Ozone Sterilizer

technical field

The invention relates to an ozone sterilizing cabinet, in particular to an ozone sterilizing cabinet suitable for sterilizing small-diameter containers.

Background technique

In the pharmaceutical, daily chemical and food industries, the traditional methods for sterilizing the inner surface of small-diameter containers are high-temperature steam sterilization and ethylene oxide sterilization. The high-temperature steam sterilization method has high energy consumption, complex equipment configuration, cumbersome operation process, great danger and high cost; ethylene oxide is a broad-spectrum sterilant that can kill various microorganisms at room temperature , including spores, Mycobacterium tuberculosis, bacteria, viruses, fungi, etc. The ethylene oxide sterilizer uses its strong bactericidal properties to add an appropriate amount of ethylene oxide gas into the airtight cabinet to sterilize the items in the cabinet. There are still residues after ethylene oxide sterilization, which needs ventilation to replace the residues. Ethylene oxide is a flammable, explosive and toxic gas. When the concentration is too high, it can cause an explosion, and the control system is complex and the process is cumbersome. It is necessary to control the dosage, time, temperature, humidity, and ventilation. The use management of ethylene oxide sterilizer has its special requirements.

The existing general-purpose ozone disinfection cabinet is to pass into a certain concentration of ozone gas under normal pressure in a sealed cabinet for disinfection. Its disadvantages are as follows: (1) Ozone gas has no penetrability, and cannot effectively sterilize the inner surface of the container. Only relying on high concentration to sterilize the outer surface of the container, the disinfection is not thorough, and the sterilization requirements cannot be met. (2) The relative humidity in the cabinet cannot be controlled, and when ozone sterilizes relatively dry containers, the sterilization effect will be seriously affected. (3) Ordinary ozone disinfection cabinets have not strictly treated the gas source that generates ozone, and are prone to produce other by-products, causing secondary pollution.

Contents of the invention

Technical problem: the technical problem to be solved by the present invention is to provide an ozone sterilizer, by making the sterilizer work in a vacuum and a certain pressure environment, not only the outer surface of the disinfection container can be sterilized, but also it can The inner surface of the container is sterilized and sterilized to achieve the effect of sterilization.

Technical solutions:

In order to achieve the above object, the technical scheme adopted by the present invention is: the air outlet end of the ozone sterilizing cabinet chamber of the present invention is connected with the suction end of the vacuum pressure pump, the air inlet end of the cabinet chamber is connected with the air outlet end of the ozone generator, A sterilizing filter is connected in series between the vacuum pressure pump and the ozone generator to form a closed loop; the humidification port of the cabinet is connected to the moisture outlet of the humidity regulator, and the tail gas discharge port of the cabinet is connected to the ozone tail gas decomposer The air inlet connection of the PLC controller; the first control output of the PLC controller is connected to the power output of the ozone generator, the control output of the second PLC controller is connected to the power output of the vacuum pressure pump, and the third control output of the PLC controller The end is connected to the power output end of the humidity regulator, and the fourth control output end of the PLC controller is connected to the power output end of the ozone tail gas decomposer.

Preferably, an air dryer, a cooler and a gas-water separator are connected in series between the air inlet end of the sterilizing filter and the outlet end of the vacuum pressure pump; The medium-efficiency filter is connected in series, and the fifth control output end of the PLC controller is connected with the power output end of the air dryer.

Beneficial effect:

The ozone sterilization cabinet of the present invention includes a cabinet room, an ozone generator, a sterilizing filter, an ozone tail gas decomposer, a vacuum pressure pump, a humidity regulator, and a PLC controller, so the cabinet room can be evacuated by a vacuum pressure pump , and make the ozone generator work under a certain pressure, so the ozone concentration can be increased, so that the ozone can quickly penetrate into the interior of the container to be disinfected, and achieve the effect of disinfecting the inner and outer surfaces together. Due to the function of the humidity regulator, the humidity in the cabinet is adjusted Humidity can improve the effect of disinfection and sterilization.

In a preferred embodiment of the present invention, since it also includes an air dryer, a medium-efficiency filter, a sterilizing filter, a cooler, and a gas-water separator, the effect of disinfection and sterilization can be better improved.

Therefore, because the present invention adopts the high vacuum-pressure conversion technology, the ozone concentration is high, and the ozone can quickly penetrate into the inner cavity of the container, so that the ozone concentration on the inner and outer surfaces is consistent, so as to achieve the purpose of disinfection and sterilization on the inner surface; it has atomization The humidification function can adjust the relative humidity in the sterilization cabinet and improve the ozone sterilization effect. The invention is equipped with an ozone tail gas catalytic decomposition device, which can replace and reduce ozone gas to meet continuous production requirements. The invention has an integrated design structure, does not need auxiliary equipment, has low operation cost and wide application range.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment;

Fig. 1 is a schematic diagram of the circuit structure of an embodiment of the ozone sterilizing device of the present invention;

Fig. 2 is a schematic diagram of the circuit structure of another embodiment of the ozone sterilizing device of the present invention.

Detailed ways

As shown in Figure 1, the gas outlet 12 of the ozone sterilizing device cabinet chamber 101 is connected with the suction port 91 of the vacuum pressure pump 109, and the gas inlet 11 of the cabinet chamber 101 is connected with the gas outlet 41 of the ozone generator 104, in vacuum The sterilization filter 105 is connected in series between the pressure pump 109 and the ozone generator 104 to form a closed circuit; the humidification port 13 of the cabinet room 101 is connected with the moisture outlet port 81 of the humidity regulator 108, and the tail gas of the cabinet room 101 is discharged Mouth 14 is connected with the inlet end 31 of ozone tail gas decomposer 103; The first control output end 21 of PLC controller 102 is connected the power supply output end 43 of ozone generator 104, and the second control output end 22 of PLC controller 102 is connected vacuum The power supply output 93 of the pressure pump 109, the third control output 23 of the PLC controller 102 is connected to the power output 82 of the humidity regulator 108, and the fourth control output 24 of the PLC controller 102 is connected to the ozone tail gas decomposer 103 power output End 32.

As shown in Figure 2, air dryer 106, cooler 110 and gas-water separator 111 are connected in series between the air inlet port 52 of sterilizing filter 105 and the outlet port 92 of vacuum pressure pump 109; The medium-efficiency filter 107 is connected in series between the end 12 and the inlet end 91 of the vacuum pressure pump 109 , and the control output end 25 of the PLC controller 102 is connected with the power output end 63 of the air dryer 106 .

Among them, the model of medium-efficiency filter 107 is M-107A; the model of vacuum pressure pump 109 is ZW400F; the model of cooler 110 is FNH-0.6-2.1; the model of gas-water separator 111 is AF-104A; The model of the device 105 is OM-107; the model of the humidity regulator 108 is NRWT-11; the model of the PLC controller 102 is K7M/K120S.

In one embodiment of the present invention, when the container to be sterilized is to be sterilized, the disinfection and sterilization time in the cabinet chamber 101 and the vacuum degree that the cabinet chamber 101 should reach and the working pressure of the cabinet chamber 101 are preset; Under the control of 102, the vacuum pressure pump 109 starts to work, and the cabinet 101 is evacuated. When the preset vacuum degree is reached, the vacuum pressure pump 109 is under the control of the PLC controller 102, and the working state is converted into a positive pressure gas supply state At the same time, the ozone generator 104, the humidity regulator 108, the sterilizing filter 105, under the control of the PLC controller 102, the ozone generator 104 transports ozone to the cabinet room 101, and the humidity regulator 108 regulates the inside of the cabinet room 101. Humidity can improve the effect of disinfection and sterilization.

Under the control of the PLC automatic controller 102, if the preset disinfection and sterilization time has been reached, the disinfection is stopped, and the vacuum pressure pump 109 is converted from the working state of the positive pressure air supply to the suction working state, and the ozone in the cabinet chamber 101 The gas is discharged through the ozone tail gas decomposer 103, and the outside atmosphere enters the cabinet room 101 to replace the air and prepare for the next disinfection.

In another embodiment of the present invention, when the vacuum pressure pump 109 is under the control of the PLC controller 102, when the working state is converted into a positive pressure air supply state, the medium-efficiency filter 107, cooler 110, gas-water separator 111, The air dryer works simultaneously with the ozone generator 104 and the humidity regulator 108, which can improve the effect of disinfection and sterilization.

Claims (2)

1. A kind of ozone sterilizing cabinet, it is characterized in that the outlet end (12) of cabinet chamber (101) is connected with the suction end (91) of vacuum pressure pump (109), the inlet end (11) of cabinet chamber (101) ) is connected with the gas outlet (41) of the ozone generator (104), and between the gas outlet (92) of the vacuum pressure pump (109) and the air inlet (42) of the ozone generator (104), the sterilizing filter is connected in series (105), forming a closed loop; the humidification port (13) of the cabinet room (101) is connected with the moisture outlet port (81) of the humidity regulator (108), and the tail gas discharge port (14) of the cabinet room (101) ) is connected with the inlet end (31) of the ozone tail gas decomposer (103); the first control output end (21) of the PLC controller (102) is connected with the power output end (43) of the ozone generator (104), and the PLC control The second control output (22) of the device (102) is connected to the power output (93) of the vacuum pressure pump (109), and the third control output (23) of the PLC controller (102) is connected to the humidity regulator (108) The power supply output terminal (82), the fourth control output terminal (24) of the PLC controller (102) is connected to the power supply output terminal (32) of the ozone tail gas decomposer (103). 2. The ozone sterilizing cabinet as claimed in claim 1, characterized in that, it is connected in series between the air inlet end (52) of the sterilizing filter (105) and the air outlet end (92) of the vacuum pressure pump (109) Air dryer (106), cooler (110) and gas-water separator (111); in series connection between the output end (12) of cabinet chamber (101) and the inlet end (91) of vacuum pressure pump (109) Efficient filter (107); the fifth control output end (25) of PLC controller (102) is connected with the power supply output end (63) of air drier (106).

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