CN106075510B

CN106075510B - Gas sterilization equipment

Info

Publication number: CN106075510B
Application number: CN201610622042.8A
Authority: CN
Inventors: 刘万忠
Original assignee: HUBEI HOPE PHARMACEUTICAL CO Ltd
Current assignee: HUBEI HOPE PHARMACEUTICAL CO Ltd
Priority date: 2016-08-02
Filing date: 2016-08-02
Publication date: 2022-04-01
Anticipated expiration: 2036-08-02
Also published as: CN106075510A

Abstract

The invention discloses a gas sterilization device, comprising: the disinfection device comprises a liquid storage system, a buffer system, a detection system, a first ventilation system, a second ventilation system and a control system, wherein different disinfection gases can be generated to disinfect a space to be disinfected, the used disinfection gases can be introduced into the liquid storage system through the second ventilation system, and the liquid in the liquid storage system is absorbed and decomposed to prevent the used disinfection gases from diffusing to a workplace to cause damage to human bodies or animals; the invention has reasonable design, simple structure, convenient operation and lower cost, and different liquids can be correspondingly arranged in the liquid storage system according to different disinfection gases to treat various disinfection gases, thus having convenient use; in addition, the detection system can detect the disinfection gas at the outlet of the buffer system in real time, so that the concentration of the disinfection gas and the like can be monitored conveniently.

Description

Gas sterilization equipment

Technical Field

The invention relates to the field of sanitation and disinfection, in particular to gas sterilization equipment.

Background

Because a lot of pathogenic microorganisms exist in the space, under a certain characteristic condition, all microorganisms on an object are required to be killed by the disinfectant so as to achieve the aim of disinfection and sterilization, but the same disinfectant can generate drug resistance to bacteria after being used for a long time, so that different disinfectants must be replaced regularly to achieve the disinfection and sterilization effect.

At present, when space disinfection is carried out, common disinfectants are formaldehyde, hydrogen peroxide, chlorine dioxide and the like. Changing different disinfectants requires the simultaneous change of different disinfection devices. In addition, the gaseous disinfectant residues are mostly removed by a direct exhaust fan and discharged into the atmosphere. However, it is difficult to install a straight blower system in small devices such as a transfer window because it is expensive to install a straight blower system while maintaining sterility, and the direct discharge of the disinfectant into the air also causes atmospheric pollution. Although some devices can decompose the disinfectant through chemical catalytic reaction, such as hydrogen peroxide catalytic decomposition systems carried by gasification hydrogen peroxide sterilization devices on the market, the selling price of the devices is generally as high as hundreds of thousands of yuan RMB, the removing effect is not ideal, and the removing time is long. If the residual disinfectant after disinfection is not absorbed or digested and decomposed, and the gaseous disinfectant is dispersed in a workplace, the human body or the animal can be injured.

In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:

there is a lack of a suitable device for absorbing residual disinfectant.

Disclosure of Invention

In order to solve the problem that the prior art lacks a proper device for absorbing residual disinfectant, the embodiment of the invention provides a gas sterilization device. The technical scheme is as follows:

a gas sterilization apparatus, comprising: stock solution system, buffer system, detecting system, first ventilation system, second ventilation system and control system, buffer system is located stock solution system top, just buffer system with stock solution system connects, stock solution system is used for depositing reaction and uses liquid, first ventilation system with buffer system connects, second ventilation system with stock solution system connects, buffer system's export is used for discharge gas, detecting system is used for detecting the gas in buffer system's exit, control system with first ventilation system the second ventilation system detecting system all connects.

Preferably, the liquid storage system comprises a liquid storage tank and a liquid discharge pipe, liquid for reaction is stored in the liquid storage tank, the liquid storage tank is connected with the second ventilation system, the top of the liquid storage tank is connected with the buffer system, a liquid discharge hole is formed in the bottom of the liquid storage tank, the liquid discharge pipe is connected to the position of the liquid discharge hole, and a control valve and/or a liquid pump are/is arranged at the position of the liquid discharge hole.

Preferably, the first ventilation system comprises a first fan, an inlet end of the first fan is a first air inlet, an outlet end of the first fan is a first air outlet, and the first air outlet is connected with the side portion of the buffer system.

Preferably, the second ventilation system comprises a second fan, an inlet end of the second fan is a second air inlet, an outlet end of the second fan is a second air outlet, and the second air outlet is connected with the liquid storage tank.

Further, gaseous sterilization equipment still includes air inlet tee bend and check valve, air inlet tee bend's first end is used for the air inlet, air inlet tee bend's second end, third end respectively with first air intake the second air intake connection, just first air outlet with between the buffer system the second air outlet with all be provided with between the liquid reserve tank the check valve.

Preferably, at least one cavity is arranged in the buffer system, the side part of the cavity is connected with the first air outlet, the bottom of the cavity is connected with the liquid storage tank, and the outlet is arranged at the upper part of the cavity.

Preferably, the detection system comprises a sensing device, a signal processing device and a display device which are connected in sequence, and the sensing device is used for sensing the gas at the outlet.

Furthermore, the gas sterilization equipment further comprises a gas outlet tee joint, a first end of the gas outlet tee joint is connected with the outlet, the sensing device is arranged at a second end of the gas outlet tee joint, and a third end of the gas outlet tee joint is used for leading out gas at the outlet.

Furthermore, the gas sterilization equipment further comprises a shell, the liquid storage system, the buffer system, the detection system, the first ventilation system, the second ventilation system and the control system are all arranged inside the shell, and a plurality of rollers are arranged at the bottom of the shell.

Preferably, the shell is provided with at least three openings, and the openings are respectively connected with the third end of the air outlet tee joint, the first end of the air inlet tee joint and the end part of the liquid discharge pipe.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

the reaction solution capable of generating the disinfection gas is added into the liquid storage system, the generated disinfection gas is introduced into the buffer system through the second ventilation system, and the disinfection gas is discharged from the outlet of the buffer system to disinfect the space to be disinfected; the invention can also lead the sterilizing gas generated by other sterilizing equipment into the buffer system through the first ventilation system and is discharged from the outlet of the buffer system to sterilize the space to be sterilized; the liquid storage system can also store solution capable of absorbing the disinfection gas, the used disinfection gas is introduced into the liquid storage system through the second ventilation system, and the liquid in the liquid storage system is absorbed and decomposed, so that the used disinfection gas is prevented from diffusing to a workplace to cause harm to human bodies or animals; the invention has reasonable design, simple structure, convenient operation and lower cost, and different liquids can be correspondingly arranged in the liquid storage system according to different disinfection gases to treat various disinfection gases, thus having convenient use; in addition, the detection system can detect the disinfection gas at the outlet of the buffer system in real time, so that the concentration of the disinfection gas and the like can be monitored conveniently.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a gas sterilization apparatus provided in an embodiment of the present invention;

FIG. 2 is a schematic connection diagram of a gas sterilization apparatus according to another embodiment of the present invention;

fig. 3 is a schematic connection diagram of a gas sterilization apparatus according to another embodiment of the present invention.

Wherein: 1 a liquid storage system, 11 liquid storage tanks, 12 liquid discharge holes, 13 liquid discharge pipes,

2 a first ventilation system, 21 a first air inlet, 22 a first fan, 23 a first air outlet,

3 a second ventilating system, 31 a second air inlet, 32 a second fan, 33 a second air outlet,

4 an air inlet tee joint,

5 a one-way valve is arranged on the upper part of the valve,

6 buffer system, 61 cavity, 62 outlet,

7, detecting the position of the system to be detected,

8, an air outlet tee joint is arranged,

9 the outer shell, 91 the rollers,

b, a nano-mist disinfection and sterilization instrument,

and C, equipment to be disinfected and sterilized.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, an embodiment of the present invention provides a gas sterilization apparatus including: stock solution system 1, buffer system 6, detecting system 7, first ventilation system 2, second ventilation system 3 and control system, buffer system 6 is located stock solution system 1 top, just buffer system 6 with stock solution system 1 is connected, stock solution system 1 is used for depositing reaction and uses liquid, first ventilation system 2 with buffer system 6 is connected, second ventilation system 3 with stock solution system 1 is connected, buffer system 6's export 62 is used for the exhaust gas, detecting system 7 is used for detecting the gas of buffer system 6's export 62 department, control system with first ventilation system 2 second ventilation system 3 detecting system 7 all connects.

The invention can be used as a sterilizing gas generating device and can also be used as a sterilizing gas absorbing and decomposing device. When the disinfection gas is absorbed and decomposed by using the disinfection gas absorption and decomposition device, namely, liquid which correspondingly absorbs and decomposes the disinfection gas is firstly added into the liquid storage system 1, the disinfection gas generated by other disinfection equipment is firstly introduced into the buffer system 6 through the first ventilation system 2, at the moment, the disinfection gas can disinfect the interior of the buffer system 6, then the disinfection gas is discharged from the outlet 62 of the buffer system 6 to a space to be disinfected for disinfection, after the disinfection is finished, the used disinfection gas is introduced into the liquid storage system 1 through the second ventilation system 3, and the disinfection gas is absorbed and decomposed through the liquid in the liquid storage system 1, so that the used disinfection gas is prevented from being diffused into a workplace to cause damage to human bodies or animals;

when the disinfection gas generator is used as disinfection gas generating equipment, liquid capable of generating the disinfection gas can be added into the liquid storage system 1, the disinfection gas generated by the liquid storage system 1 is driven to the buffer system 6 through the second ventilation system 3, and is discharged from the outlet 62 of the buffer system 6 to disinfect the space to be disinfected;

the invention has reasonable design, simple structure, convenient operation and lower cost, and different liquids can be correspondingly arranged in the liquid storage system 1 according to different disinfection gases to absorb and decompose various disinfection gases or correspondingly generate different disinfection gases, so that the invention has multiple functions and convenient use, not only can be used for absorbing, digesting, decomposing and destroying gaseous disinfectants such as hydrogen peroxide, chlorine dioxide or formaldehyde, but also can be used as a generator of disinfection gases such as chlorine dioxide and formaldehyde for space disinfection; in addition, detecting system 7 can detect the gaseous disinfection of export 62 department of buffer system 6 in real time, is convenient for monitor the concentration of gaseous disinfection etc. and when liquid through in the stock solution system 1 absorbed gaseous disinfection and decompose, if the gaseous disinfection of discharging is not up to standard, can reintroduce stock solution system 1 and carry out circulation treatment, until the residual concentration of gaseous disinfection reaches safe range.

As shown in fig. 1, preferably, the liquid storage system 1 includes a liquid storage tank 11 and a liquid discharge pipe 13, liquid for reaction is stored in the liquid storage tank 11, the liquid storage tank 11 is connected to the second ventilation system 3, the top of the liquid storage tank 11 is connected to the buffer system 6, a liquid discharge hole 12 is formed in the bottom of the liquid storage tank 11, the liquid discharge pipe 13 is connected to the liquid discharge hole 12, and a control valve and/or a liquid pump is arranged at the liquid discharge hole 12.

Wherein, the reaction liquid can be a liquid for absorbing and decomposing the sterilizing gas and can also be a liquid for generating the sterilizing gas; the liquid storage tank 11 may be circular, square or any other shape, a control valve and/or a liquid pump may be disposed at the bottom liquid discharge hole 12, the control valve may be a two-way valve, the liquid pump may be a micro electric pump, the bottom opening of the liquid discharge pipe 13 may be used for discharging or injecting a reaction solution, and an opening may be disposed at the side surface or the upper portion of the liquid storage tank 11 and respectively communicated with the second air outlet 33 of the second fan 32 of the second ventilation system 3 and the cavity 61 of the gas buffer system 6. A tank 11 is located at the bottom of the entire apparatus of the invention for storing a solution of a sterilizing gas or a liquid of a gaseous sterilizing agent which digests the decomposition.

As shown in fig. 1, preferably, the first ventilation system 2 includes a first fan 22, an inlet end of the first fan 22 is a first air inlet 21, an outlet end of the first fan 22 is a first air outlet 23, and the first air outlet 23 is connected to a side portion of the buffer system 6.

As shown in fig. 1, preferably, the second ventilation system 3 includes a second fan 32, an inlet end of the second fan 32 is a second air inlet 31, an outlet end of the second fan 32 is a second air outlet 33, and the second air outlet 33 is connected to the liquid storage tank 11.

As shown in fig. 1, further, the gas sterilization equipment further includes an air inlet tee joint 4 and a check valve 5, a first end of the air inlet tee joint 4 is used for air inlet, a second end and a third end of the air inlet tee joint 4 are respectively connected with the first air inlet 21 and the second air inlet 31, and the check valve 5 is arranged between the first air outlet 23 and the buffer system 6 and between the second air outlet 33 and the liquid storage tank 11.

As shown in fig. 1, preferably, at least one cavity 61 is provided inside the buffer system 6, a side portion of the cavity 61 is connected to the first air outlet 23, a bottom portion of the cavity 61 is connected to the reservoir 11, and the outlet 62 is provided at an upper portion of the cavity 61.

The cavity 61 may be circular, square or any other shape, the bottom of the cavity 61 is connected to the liquid storage tank 11 of the liquid storage system 1 through a pipe or a partition with a hole, and the upper part or the side of the cavity 61 includes an outlet 62 for communicating with the detection system 7.

As shown in fig. 1, the detection system 7 preferably includes a sensing device, a signal processing device and a display device, which are connected in sequence, and the sensing device is used for sensing the gas at the outlet 62.

As shown in fig. 1, further, the gas sterilization apparatus further includes a gas outlet tee 8, a first end of the gas outlet tee 8 is connected to the outlet 62, the sensing device is disposed at a second end of the gas outlet tee 8, and a third end of the gas outlet tee 8 is used for guiding out the gas at the outlet 62.

As shown in fig. 1, further, the gas sterilization apparatus further includes a housing 9, the liquid storage system 1, the buffer system 6, the detection system 7, the first ventilation system 2, the second ventilation system 3, and the control system are all disposed inside the housing 9, and a plurality of rollers 91 are disposed at the bottom of the housing 9. A part of the circuit control keys is also arranged on the panel of said housing 9.

As shown in fig. 1, preferably, the housing 9 is provided with at least three openings, and the openings are respectively connected with the third end of the outlet tee 8, the first end of the inlet tee 4, and the end of the liquid discharge pipe 13.

The control system of the circuit is connected with the two ventilation systems, the gas detection system 7 and the micro electric pump through leads.

Before the equipment is used specifically, the solution capable of generating the sterilizing gas or the solution capable of digesting and decomposing the disinfectant is added into the liquid storage tank 11 of the liquid storage system 1 through the outlet 62 of the buffer system 6 at the upper end of the equipment, and can also be injected into the liquid storage tank 11 through the bottom opening of the liquid discharge pipe 13 of the liquid storage system 1.

During the disinfection operation, a gaseous disinfectant, such as hydrogen peroxide nano mist (or dry mist), chlorine dioxide gas or formaldehyde, enters the air through the first end of the air inlet tee 4, directly enters the cavity 61 of the buffer system 6 through the first air inlet 21 and the air inlet pipeline of the first ventilation system 2, the first fan 22 and the one-way valve 5 (at this time, the second fan 32 of the second ventilation system 3 is closed), then enters the detection system 7 through the outlet 62 of the cavity 61 of the buffer system 6 at the second end of the air outlet tee 8, passes through the sensing device, generally a gas sensor to detect the concentration of the gaseous disinfectant, and then enters the closed equipment to be disinfected or the inlet of the gas generator through the third end of the air outlet tee 8 to be disinfected for circular disinfection;

when the requirement of the disinfection time is met, the disinfected gaseous disinfectant enters air through the first end of the air inlet tee joint 4, enters the liquid storage tank 11 of the liquid storage system 1 through the second air inlet 31 of the second ventilation system 3 and the air inlet pipeline through the second fan 32 and the one-way valve 5 to be digested, decomposed and destroyed (at the moment, the first fan 22 of the first ventilation system 2 is closed), the rest disinfected gas is input into the cavity 61 of the buffer system 6 through the top opening of the liquid storage system 1, enters the detection system 7 through the outlet 62 of the buffer system 6, the residual concentration of the disinfected gas is detected through the gas sensor, and then is input into the closed equipment to be disinfected or the inlet of the gas generator through the third end of the air outlet tee joint 8 again to be repeatedly absorbed, digested and decomposed until the residual concentration of the gaseous disinfectant in the system reaches the safety range.

As shown in fig. 1, the liquid storage tank 11 of the liquid storage system 1 in this embodiment preferably has at least three openings, wherein the bottom of the three openings has at least one liquid discharge hole 12 for discharging waste liquid or injecting reaction solution, and the other two openings can be disposed anywhere in the liquid storage system 1, as long as the gaseous disinfectant fed into the liquid storage system 1 through the openings can be sufficiently absorbed, digested and decomposed by the added reaction solution.

As shown in fig. 1, the buffering system 6 in this embodiment preferably includes at least one cavity 61, and may include two or more cavities 61. The shape of the cavity 61 can be round, square or any other shape, when two or more cavities 61 are contained, the cavities 61 can be communicated with each other through a pipeline or a partition plate with holes, and in any communication mode, the added various solutions can be ensured to completely flow into the liquid storage tank 11 of the liquid storage device without obvious residue. The upper part of the cavity 61 comprises an outlet 62 for communicating with the detection system 7, and the bottom part of the cavity 61 also comprises an opening for communicating with the upper end of the reservoir system 1, and the design of the buffer system 6 has the following advantages:

1. when the disinfection operation is carried out, the gaseous disinfectant can be prevented from being absorbed by the solution in the liquid storage system 1, so that the use concentration of the disinfectant is reduced, and the disinfection effect is influenced;

2. when the disinfectant residue removing operation is carried out, the digestive decomposition liquid in the liquid storage tank 11 of the liquid storage system 1 can be prevented from sputtering everywhere to corrode the gas sensor and interfere the detection result, because most of the chemical gas sensors have poor corrosion resistance, and the digestive decomposition liquid sputtered into the buffer system 6 can flow back to the liquid storage tank 11 of the liquid storage system 1 through the structural design;

3. when used as a chlorine dioxide or formaldehyde gas generator, it is also possible to prevent the reaction liquid in the liquid storage tank 11 of the liquid storage system 1 from sputtering around to corrode the chemical gas sensor and interfere with the monitoring result; similarly, the structural design can also lead the reaction liquid sputtered into the buffer system 6 to flow back to the liquid storage tank 11 of the liquid storage system 1; more importantly, when used as a chlorine dioxide gas generator, the cavity 61 has a good buffering effect to prevent the explosion of chlorine dioxide due to too fast reaction, because spontaneous explosion occurs when the chlorine dioxide gas content in the air exceeds 10% by volume.

As shown in fig. 1, preferably, the two fans used in the two ventilation systems are high-speed fans capable of generating certain heat, and the generated hot air can heat the liquid in the liquid storage system 1 during operation, so as to accelerate the generation of the sterilizing gas or accelerate the decomposition and destruction of the sterilizing agent. More importantly, when the high-speed fan is used as a chlorine dioxide gas generator, the high-speed fan can quickly introduce air to dilute the generated chlorine dioxide gas and can prevent explosion caused by overhigh concentration of the chlorine dioxide gas.

As shown in fig. 1, further, at least three through holes are provided on the device housing 9, wherein a first end of the inlet tee 4 is communicated with the outside through the 1 st through hole, a third end of the outlet tee 8 connected to the outlet 62 of the buffer system 6 is communicated with the outside through the 2 nd through hole, an opening at the bottom end of the liquid discharge pipe 13 of the liquid storage system 1 is communicated with the outside through the 3 rd through hole, and the lower end of the housing 9 can be fixed on the base.

As shown in fig. 1, further, the apparatus is used as a chlorine dioxide gas generator for space disinfection, and has the advantages of rapidness, safety, low cost and the like, and the specific use method is as follows:

1. before starting up, adding chlorine dioxide activator solution into the equipment to the liquid storage tank 11 of the liquid storage system 1 through the 2 nd perforation on the shell 9 communicated with the outside through a pipeline and the outlet 62 of the buffer system 6;

2. turning off the first fan 22 of the first ventilation system 2;

3. the sodium hypochlorite solution is injected into the opening of the liquid discharge pipe 13 at the bottom of the liquid storage tank 11 of the liquid storage system 1 at regular intervals, the second fan 32 in the second ventilation system 3 is started simultaneously, high-speed hot air passes through the second air outlet 33 and the one-way valve 5 of the second fan 32 and is input into the reaction solution of the liquid storage tank 11 of the liquid storage system 1, and chlorine dioxide gas generated by reaction is input into the gas detection system 7 through the cavity 61 of the buffer system 6 to be subjected to concentration detection and then is input into a space to be disinfected through the equipment air outlet.

As shown in fig. 1, further, when the device is used as a formaldehyde gas generator for space disinfection, the device also has the advantages of rapidness, safety and the like, and the specific use method is similar to that of the device used as a chlorine dioxide gas generator, except that the added reaction liquid is different:

1. before starting up, firstly adding formaldehyde solution into the equipment to the liquid storage tank 11 of the liquid storage system 1 through the 2 nd perforation on the shell 9 communicated with the outside through a pipeline with the outlet 62 of the buffer system 6;

2. turning off the first fan 22 of the first ventilation system 2;

3. regularly inject potassium permanganate solution through 11 bottom fluid-discharge tubes 13 openings of stock solution tank of stock solution system 1, open the second fan 32 in the second ventilation system 3 simultaneously, with high-speed hot-blast second air outlet 33 and the check valve 5 through second fan 32, input to the reaction solution of stock solution tank 11 of stock solution system 1, the formaldehyde gas that produces the reaction is inputed to gaseous detecting system 7 through cavity 61 of buffer system 6 and is carried out concentration detection in the back and inputed to the space of treating the disinfection by the equipment air outlet.

As shown in FIG. 2, the embodiment of the invention is a communication mode between the nano-mist sterilizer B and equipment C to be sterilized, wherein the nano-mist sterilizer B is a commercially available NMW-1 type nano-mist sterilizer. The specific operation flow is as follows:

1. before starting the machine, adding hydrogen peroxide disinfectant (sporicide) or other disinfectant, such as chlorine dioxide or formaldehyde disinfectant, into the nano-mist disinfection sterilizer B;

2. before starting the machine, adding a solution capable of absorbing or digesting and decomposing a disinfectant into the equipment;

3. the nano-mist disinfection and sterilization instrument B is started to generate a nano-mist disinfectant, at the moment, a fan of the second ventilation system 3 is closed, a fan of the first ventilation system 2 is started, so that the generated nano-mist disinfectant enters the cavity of the equipment C to be disinfected from an air outlet of the nano-mist disinfection and sterilization instrument B and an air inlet of the equipment C to be disinfected, the objects in the cavity and the cavity are exposed and disinfected, the nano-mist disinfectant enters the buffer system 6 through the air outlet of the equipment C to be disinfected and the air inlet of the equipment C to be disinfected through the first ventilation system 2, the concentration of gaseous disinfectant is detected through the detection system 7, and the nano-mist disinfectant and sterilization instrument B is connected and communicated with the air inlet of the nano-mist disinfection and sterilization instrument B through the outlet 62 of the invention, and a closed-cycle disinfection loop is finally formed.

4. When the closed circulating disinfection loop reaches the concentration of the required gaseous disinfectant, the time required for atomization or the volume of the required atomized disinfectant, the motor of the nano-mist disinfection and sterilization instrument B is closed, atomization is stopped, and the space in the equipment C to be disinfected and sterilized and objects in the space are exposed and sterilized.

5. After the closed exposure sterilization reaches the set time, the fan of the first ventilation system 2 is closed, the fan of the second ventilation system 3 is opened, the gaseous disinfectant in the equipment C to be sterilized is injected into the liquid storage system 1 through the air outlet and the air inlet, after the solution in the liquid storage system 1 is absorbed, digested, decomposed and destroyed, the solution enters a buffer system 6 and a detection system 7 in sequence, after the concentration of the residual disinfectant is detected, the residual disinfectant enters the cavity of the nano mist disinfection and sterilization instrument B through the outlet 62 and the air inlet of the nano mist disinfection and sterilization instrument B, finally enters the cavity of the equipment C to be disinfected and sterilized through the air outlet of the nano mist disinfection and sterilization instrument B and the air inlet of the equipment C to be disinfected and sterilized, and finally forms a closed circulating loop to repeatedly absorb, digest and decompose the residual disinfectant.

6. When the concentration of the residual disinfectant detected by the detection system 7 reaches a safe range, all ventilation systems of the invention are closed, and the operations of disinfection, digestion and decomposition are completed.

As shown in FIG. 3, in the preferred embodiment of the present invention, two apparatuses A1 and A2 according to the present invention are connected in communication with each other, and an apparatus C to be sterilized such as a transfer window is provided. The specific operation flow is as follows:

1. before starting the device A1 of the present invention as a gas generator, chlorine dioxide activator solution such as potassium persulfate solution or acidic solution such as oxalic acid solution or sodium bisulfate solution is added into the liquid storage tank 11 of the liquid storage system 1 through the outlet 62 of the connecting pipe, and the power of the first ventilation system 2 of the present invention is turned off;

2. before starting the device, adding a solution capable of digesting and decomposing chlorine dioxide gas into the liquid storage tank 11 of the liquid storage system 1 through the outlet 62 of the connecting pipeline to the device A2 for removing disinfectant residues, and turning off the power supply of the second ventilation system 3 of the device A2;

3. periodically injecting sodium hypochlorite solution through a liquid discharge pipe 13 opening at the bottom of a liquid storage tank 11 of a liquid storage system 1 of the device A1, simultaneously, a fan in the second ventilation system 3 of the device A1 is started, high-speed ventilation air is input into the reaction solution in the liquid storage tank 11, chlorine dioxide gas generated by the reaction is input into the gas buffer system 6 and the detection system 7 through blowing, and then input into the equipment C to be disinfected and sterilized such as the cavity of a transmission window through the outlet 62 of the equipment A1, exposing and sterilizing the space of the cavity and objects in the cavity, then entering the gas buffer system 6 through the air outlet of the equipment C to be sterilized, the air inlet of the equipment A2 and the first ventilation system 2, and after the concentration of the gaseous disinfectant is detected by the gas detection system 7, the gaseous disinfectant passes through the outlet 62 of the equipment A2 and is communicated with the air inlet of the equipment A1, and finally a closed circulating disinfection loop is formed.

4. When the gas disinfectant in the closed circulation reaches the specified concentration, all motors of the ventilation systems of the equipment A1 and the equipment A2 are closed, the blowing is stopped, and the space and objects in the equipment C to be disinfected and sterilized are exposed and sterilized.

5. After the sealed exposure and disinfection reach the set time, the first ventilation system 2 of the equipment A1 is opened, the second ventilation system 3 of the equipment A2 is opened, the first ventilation system 2 is closed, the gas disinfectant in the equipment C to be disinfected and sterilized is input into the liquid storage system 1 through the air outlet of the gas disinfectant and the air inlet of the equipment A2, the gas disinfectant passes through the solution in the liquid storage system 1 to be absorbed, digested, decomposed and damaged, then sequentially enters the buffer system 6 and the detection system 7, the concentration of the residual disinfectant is detected, the gas disinfectant passes through the outlet 62 of the equipment A2 and the air inlet of the equipment A1 to enter the cavity 61 of the invention, finally passes through the outlet 62 to enter the cavity of the equipment C to be disinfected and sterilized through the air inlet of the equipment C to be disinfected and sterilized, and finally a closed circulating loop is formed to repeatedly absorb and absorb the disinfectant, Digesting and decomposing.

6. And when the concentration of the residual disinfectant detected by the detection system 7 in the equipment A2 reaches a safe range, closing the fans of the ventilation systems of the equipment A1 and the equipment A2 to finish the operations of disinfection, digestion and decomposition.

Furthermore, formaldehyde can be used for replacing chlorine dioxide to disinfect and sterilize the closable space, and the using method is similar to that of the chlorine dioxide.

In summary, the invention has the following advantages:

1. different from other methods for decomposing the residual sterilizing substances by using solid catalysts, the equipment of the invention adopts liquid substances as the absorbing and digesting decomposing agent of the disinfectant, thereby reducing the manufacturing cost and the using cost of the equipment, leading the residual sterilizing and decomposing of the disinfectant to be quicker and more thorough and saving the time of the sterilizing operation.

2. The liquid storage system 1 is very convenient and quick to replace the solution, and different gaseous disinfectants can be absorbed, decomposed and damaged as long as the solution in the liquid storage system is replaced, so that the residual of the different disinfectants can be removed by one device.

3. The ventilation system adopts a high-speed heating fan, can heat the decomposition solution in the liquid storage system 1 through the generated hot air, accelerates the decomposition reaction, shortens the time for decomposing and destroying the disinfectant, avoids the additional installation of a heating system in the equipment, and simplifies the structure of the equipment.

4. Because the ventilation system is provided with a double-channel ventilation system and a one-way valve which are respectively communicated with the liquid storage system 1 and the buffer system 6, if the first ventilation system 2 is closed and the second ventilation system 3 is started to be communicated with the liquid storage system 1, the system can be used for decomposing and destroying used gaseous disinfection substances; if the solution in the liquid storage system 1 is replaced by a substance capable of generating a sterilizing gas, such as chlorine dioxide or formaldehyde, the solution can be used as a generator of the sterilizing gas for sterilizing various spaces, thereby reducing the equipment purchase cost of enterprises and really achieving multiple purposes.

5. The invention can be used for removing the residual disinfectant in small-sized closed spaces such as a freeze dryer, a delivery window, a biological safety cabinet and the like during disinfection and sterilization, and can also be used as a disinfection gas generator for disinfection and sterilization in large-sized spaces such as a GMP purification workshop, a hospital operating room and an ICU ward.

6. The invention is used as a disinfection gas generator for disinfection and sterilization, particularly used as a chlorine dioxide gas generator for disinfection and sterilization, has the advantages of safety, high efficiency, uninterrupted disinfection and sterilization process, short cycle, no harm to human bodies, no harm to the surfaces of equipment, walls and ground and the like, and is a green and environment-friendly disinfection method which can completely replace formaldehyde disinfection.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A gas sterilization apparatus, characterized in that it comprises: the device comprises a liquid storage system, a buffer system, a detection system, a first ventilation system, a second ventilation system and a control system, wherein the buffer system is positioned above the liquid storage system, the buffer system is connected with the liquid storage system, the liquid storage system is used for storing liquid for reaction, the first ventilation system is connected with the buffer system, the second ventilation system is connected with the liquid storage system, an outlet of the buffer system is used for discharging gas, the detection system is used for detecting the gas at the outlet of the buffer system, and the control system is connected with the first ventilation system, the second ventilation system and the detection system;

the liquid storage system comprises a liquid storage tank and a liquid discharge pipe, wherein liquid for reaction is stored in the liquid storage tank, the liquid storage tank is connected with the second ventilation system, the top of the liquid storage tank is connected with the buffer system, a liquid discharge hole is formed in the bottom of the liquid storage tank, the liquid discharge pipe is connected to the liquid discharge hole, and a control valve and/or a liquid pump are/is arranged at the liquid discharge hole;

the first ventilation system comprises a first fan, the inlet end of the first fan is a first air inlet, the outlet end of the first fan is a first air outlet, and the first air outlet is connected with the side part of the buffer system;

the second ventilation system comprises a second fan, the inlet end of the second fan is a second air inlet, the outlet end of the second fan is a second air outlet, and the second air outlet is connected with the liquid storage tank;

the gas sterilization equipment further comprises an air inlet tee joint and a one-way valve, wherein a first end of the air inlet tee joint is used for air inlet, a second end and a third end of the air inlet tee joint are respectively connected with the first air inlet and the second air inlet, and the one-way valve is arranged between the first air outlet and the buffer system and between the second air outlet and the liquid storage tank;

at least one cavity is arranged in the buffer system, the side part of the cavity is connected with the first air outlet, the bottom of the cavity is connected with the liquid storage tank, and the upper part of the cavity is provided with the outlet;

the gas sterilization equipment can be connected with a plurality of same equipment and/or harmful gas decomposition equipment in series for common use;

the reaction liquid may be any one of a sterilizing gas absorbing liquid or a sterilizing gas generating liquid.

2. The gas sterilization apparatus of claim 1, wherein the detection system comprises a sensing device, a signal processing device and a display device connected in series, the sensing device being configured to sense the gas at the outlet.

3. The gas sterilization apparatus according to claim 2, further comprising a gas outlet tee, wherein a first end of the gas outlet tee is connected to the outlet, the sensing device is disposed at a second end of the gas outlet tee, and a third end of the gas outlet tee is used for guiding out gas at the outlet.

4. The gas sterilization apparatus of claim 3, further comprising a housing, wherein the liquid storage system, the buffer system, the detection system, the first ventilation system, the second ventilation system, and the control system are all disposed inside the housing, and a plurality of rollers are disposed at a bottom of the housing.

5. The gas sterilization apparatus according to claim 4, wherein the housing is provided with at least three openings, and the openings are respectively connected with a third end of the outlet tee, a first end of the inlet tee and an end of the drain pipe.