Sterile feeding isolator capable of purifying hydrogen peroxide

Abstract

The utility model discloses a sterile feeding isolator capable of purifying hydrogen peroxide, which comprises an isolation box, operating gloves arranged on the isolation box and a purification device arranged on the isolation box, and the purification device is further communicated with the isolation box so as to introduce purified hydrogen peroxide steam into the isolation box for sterilization; the purification device comprises a flash evaporator, a vacuum pump and a first valve, the flash evaporator is connected to a solution bottle in which hydrogen peroxide is stored through the first valve, the flash evaporator is connected to an isolation box, and the vacuum pump is communicated with the isolation box; when the first valve is opened, the vacuum pump sucks hydrogen peroxide in the solution bottle into the flash evaporator through negative pressure; and when the first valve is closed, the vacuum pump reduces the air pressure in the flash evaporator through negative pressure. According to the scheme, the hydrogen peroxide disinfection solution can be purified before steam disinfection through the hydrogen peroxide disinfection solution, the disinfection effect can be improved through a hydrogen peroxide purification mode under the condition that the low cost is kept, and meanwhile the problem of water accumulation is solved.

Description

Technical Field

[0001] The utility model relates to a cell culture device, in particular to a sterile feeding isolator capable of purifying hydrogen peroxide. Background Art

[0002] Aseptic feeding isolator is generally a device that uses isolation gloves to operate the internal sterile environment from the outside. The internal sterile environment of this type of equipment needs to be maintained through regular disinfection, and the internal sterile environment is generally maintained through steam disinfection with hydrogen peroxide.

[0003] However, the current hydrogen peroxide disinfection solution is generally not pure enough. If the purity is insufficient, it is easy to have excessive water vapor, which will cause water vapor condensation in the sterile feeding isolator and partial water accumulation. However, if you buy high-purity hydrogen peroxide disinfection solution, the cost will increase too much. Therefore, we still need to overcome the problem of how to maintain a low disinfection cost, increase the disinfection effect, and reduce the problem of water accumulation. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a sterile feeding isolator that can purify hydrogen peroxide, which can purify the hydrogen peroxide disinfection solution before sterilizing it with the steam of the hydrogen peroxide disinfection solution. This can increase the disinfection effect by purifying hydrogen peroxide while maintaining a low cost, while reducing the problem of water accumulation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sterile feeding isolator capable of purifying hydrogen peroxide, comprising an isolation box, operating gloves arranged on the isolation box, and a purification device arranged on the isolation box, wherein the purification device is also connected to the isolation box so as to pass the purified hydrogen peroxide vapor into the isolation box for disinfection; the purification device comprises a flash evaporator, a vacuum pump, and a first valve, wherein the flash evaporator is connected to a solution bottle containing hydrogen peroxide via the first valve, the flash evaporator is connected to the isolation box, and the vacuum pump is connected to the isolation box; when the first valve is opened, the vacuum pump sucks the hydrogen peroxide in the solution bottle into the flash evaporator through negative pressure; when the first valve is closed, the vacuum pump reduces the air pressure in the flash evaporator through negative pressure.

[0006] As a further improvement of the utility model, the flash evaporator is also connected to a second valve.

[0007] The second valve is connected to the outside atmosphere through a filter, so as to cooperate with a vacuum pump to extract the outside air and filter it before sending the sterilizing steam in the flash evaporator into the isolation box; or

[0008] The second valve is connected to the vacuum pump through a filter to cooperate with the vacuum pump to form a disinfection steam cycle to disinfect the isolation box.

[0009] As a further improvement of the present invention, a third valve is further provided between the flash evaporator and the isolation box. After the third valve is closed, it is used to cooperate with the vacuum pump to maintain the gas pressure in the flash evaporator.

[0010] As a further improvement of the utility model, the isolation box is also connected to a fourth valve and a fifth valve. The fourth valve delivers clean and dry compressed air to the isolation box through a filter, and the fifth valve is used to cooperate with the fourth valve to discharge the compressed air delivered to the isolation box.

[0011] As a further improvement of the present invention, a heating component is provided in the isolation box for heating the interior of the isolation box.

[0012] The beneficial effect of the utility model is that it can realize long-term purification without increasing too much cost of the equipment itself. Purification can be carried out through simple operation before each disinfection process. Moreover, since the water vapor has been released in advance, it is more convenient to process the water vapor, which can reduce the problem of water vapor condensation in the disinfection process and has great use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the principle diagram of the utility model.

[0014] Figure numbers: 1. Isolation box; 11. Heating component; 2. Purification device; 21. Flash evaporator; 22. Vacuum pump; 23. First valve; 24. Second valve; 25. Third valve; 26. Fourth valve; 27. Fifth valve; 3. Solution bottle. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0016] Reference Figure 1 As shown,

[0017] A sterile feeding isolator capable of purifying hydrogen peroxide comprises an isolation box, operating gloves arranged on the isolation box, and a purification device 2 arranged on the isolation box, wherein the purification device 2 is also connected to the isolation box so as to pass the purified hydrogen peroxide vapor into the isolation box for disinfection; the purification device 2 comprises a flash evaporator 21, a vacuum pump 22, and a first valve 23, wherein the flash evaporator 21 is connected to a solution bottle 3 containing hydrogen peroxide via the first valve 23, the flash evaporator 21 is connected to the isolation box, and the vacuum pump 22 is connected to the isolation box; when the first valve 23 is opened, the vacuum pump 22 sucks the hydrogen peroxide in the solution bottle 3 into the flash evaporator 21 through negative pressure; when the first valve 23 is closed, the vacuum pump 22 reduces the air pressure in the flash evaporator 21 through negative pressure.

[0018] In this solution, when the isolation box needs to be disinfected, the hydrogen peroxide is first purified by the purification device 2. The proposed method can be to open the first valve 23 first, and then the vacuum pump 22 starts to work to extract air. At this time, negative pressure will be generated in the flash evaporator 21. Based on the negative pressure, the hydrogen peroxide in the solution bottle 3 can be sucked into the flash evaporator 21. The amount absorbed here is the target amount to be purified. After the absorption is completed, the first valve 23 is closed, and the flash evaporator 21 is heated. The vacuum pump 22 continues to extract air to generate negative pressure in the flash evaporator 21 and reduce the air pressure. The reduced air pressure in the flash evaporator 21 can reduce the boiling point of water and evaporate the water. After the evaporation reaches the target time, the purification of the hydrogen peroxide solution in the flash evaporator 21 is completed, and the evaporated water can be extracted by exhausting air to discharge it, for example, it can be extracted by the vacuum pump 22, or it can be dehumidified by a dehumidifier. After purification, the vacuum pump 22 no longer evacuates the negative pressure of the flash evaporator 21, and the flash evaporator 21 returns to normal atmospheric pressure. The flash evaporator 21 continues to heat to increase the temperature, thereby vaporizing the hydrogen peroxide and entering the isolation box for disinfection.

[0019] The above structure is operated in accordance with the principle of saturated vapor pressure, and can reduce the gas pressure through the vacuum pump 22, and heat the flash evaporator 21 itself through its own heating function, so that the water escapes first, thereby achieving purification.

[0020] Based on this purification function, the equipment itself can achieve long-term purification without increasing too much cost. It can be purified through simple operations before each disinfection process. Moreover, since the water vapor has been released in advance, it is more convenient to handle the water vapor, which can reduce the problem of water vapor condensation during the disinfection process and has great use value.

[0021] In order to allow the sterilizing steam in the flash evaporator 21 to have a better diffusion effect, a second valve 24 is also connected to the flash evaporator 21.

[0022] The second valve 24 is connected to the outside atmosphere through the filter, so as to cooperate with the vacuum pump 22 to extract the outside air and filter it before sending the sterilizing steam in the flash evaporator 21 into the isolation box; or

[0023] The second valve 24 is connected to the vacuum pump 22 through a filter to cooperate with the vacuum pump 22 to form a sterilizing steam cycle to sterilize the isolation box.

[0024] The second valve 24 can be used to connect with the outside atmosphere, and when negative pressure needs to be generated in the flash evaporator 21, it can be closed to make it easier to generate negative pressure. When the sterilizing steam needs to be diffused, the second valve 24 can be opened, and it can be connected with the outside atmosphere or circulated with the vacuum pump 22, and then the vacuum pump 22 can be used to diffuse the sterilizing steam and accelerate the sterilization efficiency.

[0025] In order to make the flash evaporator 21 more effective in evaporating water, a third valve 25 is provided between the flash evaporator 21 and the isolation box. After the third valve 25 is closed, it is used to cooperate with the vacuum pump 22 to maintain the air pressure in the flash evaporator 21.

[0026] The third valve 25 can be closed after the vacuum pump 22 draws air to reduce the air pressure in the flash evaporator 21. At this time, the flash evaporator 21 can be in a closed space and maintain a negative pressure state. At this time, the heating effect of the flash evaporator 21 can make it easier for the internal water to reach the boiling point. After a certain period of time, that is, after the water in the flash evaporator 21 reaches the boiling point, the third valve 25 is opened to evaporate the water and purify the hydrogen dioxide after it escapes.

[0027] After the disinfection steam is used to disinfect the isolation box, some residue may still remain. Therefore, in order to further improve the environment of the isolation box, the isolation box is also connected to a fourth valve 26 and a fifth valve 27. The fourth valve 26 delivers clean and dry compressed air to the isolation box through a filter. The fifth valve 27 is used to cooperate with the fourth valve 26 to discharge the compressed air delivered to the isolation box.

[0028] The fourth valve 26 and the fifth valve 27 can work synchronously, closed together or opened together. When closed together, they are in the disinfection process and need to maintain a certain sealing state. When opened together, they can be used for residual discharge. Clean and dry compressed air can come from a compressed air tank, or pre-treated air, and enter the isolation box through the solenoid valve after passing through the filter, and then discharged after passing through the fifth valve 27, thereby taking away the residual disinfection steam in the isolation box.

[0029] In order to make the sterilizing steam more effective in sterilizing and draining water, a heating component 11 is provided in the isolation box for heating the interior of the isolation box.

[0030] Heating the isolation box before the water evaporates can prevent the water from condensing quickly in the isolation box after evaporation, which makes it impossible for the water to be discharged normally. It can also prevent the disinfection steam from condensing in the isolation box, which makes it difficult for the water to be discharged.

[0031] The waste liquid in the flash evaporator 21 can be discharged through the cooperation of a drain valve and a peristaltic pump.

[0032] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A sterile feeding isolator for purifying hydrogen peroxide, characterized in that: It includes an isolation box, operating gloves arranged on the isolation box, and a purification device arranged on the isolation box, the purification device is also connected to the isolation box so as to pass the purified hydrogen peroxide vapor into the isolation box for disinfection; the purification device includes a flash evaporator, a vacuum pump, and a first valve, the flash evaporator is connected to a solution bottle with hydrogen peroxide stored therein through the first valve, the flash evaporator is connected to the isolation box, and the vacuum pump is connected to the isolation box; when the first valve is opened, the vacuum pump sucks the hydrogen peroxide in the solution bottle into the flash evaporator through negative pressure; when the first valve is closed, the vacuum pump reduces the air pressure in the flash evaporator through negative pressure.

2. The aseptic feeding isolator for purifying hydrogen peroxide according to claim 1, characterized in that: The flash evaporator is also connected to a second valve. The second valve is connected to the outside atmosphere through a filter, so as to cooperate with a vacuum pump to extract the outside air and filter it before sending the sterilizing steam in the flash evaporator into the isolation box; or The second valve is connected to the vacuum pump through a filter to cooperate with the vacuum pump to form a disinfection steam cycle to disinfect the isolation box.

3. The aseptic feeding isolator for purifying hydrogen peroxide according to claim 2, characterized in that: A third valve is also provided between the flash evaporator and the isolation box. After the third valve is closed, it is used to cooperate with the vacuum pump to maintain the air pressure in the flash evaporator.

4. The aseptic feeding isolator for purifying hydrogen peroxide according to claim 3, characterized in that: The isolation box is also connected to a fourth valve and a fifth valve. The fourth valve delivers clean and dry compressed air to the isolation box through a filter. The fifth valve is used to cooperate with the fourth valve to discharge the compressed air delivered to the isolation box.

5. The aseptic feeding isolator capable of purifying hydrogen peroxide according to claim 4, characterized in that: A heating component is arranged in the isolation box for heating the inside of the isolation box.

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