CN219307468U - Vaporized hydrogen peroxide sterilizing device of freeze dryer - Google Patents
Vaporized hydrogen peroxide sterilizing device of freeze dryer Download PDFInfo
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- CN219307468U CN219307468U CN202320492988.2U CN202320492988U CN219307468U CN 219307468 U CN219307468 U CN 219307468U CN 202320492988 U CN202320492988 U CN 202320492988U CN 219307468 U CN219307468 U CN 219307468U
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Abstract
The utility model relates to the technical field of sterilization of freeze-drying machines, in particular to a vaporized hydrogen peroxide sterilization device of a freeze-drying machine, which comprises a device shell, wherein the outer wall of the device shell is hinged with a sealing door, a sterilization cavity is arranged in the device shell, a sealing block is arranged on the inner wall of the sterilization cavity, a sealing gasket is connected in the sealing block, a hydrogen peroxide liquid storage tank is arranged on one side of the sterilization cavity, a conveying pump is arranged on the upper surface of the hydrogen peroxide liquid storage tank, the input end of the conveying pump is connected with a connecting pipe, the output end of the conveying pump is connected with a conveying pipe, and the outer wall of the conveying pipe is provided with a first electromagnetic valve. According to the utility model, the hydrogen peroxide liquid in the hydrogen peroxide liquid storage tank can be pumped out through the delivery pump arranged on the hydrogen peroxide liquid storage tank under the cooperation of the connecting pipe, and the first electromagnetic valve is opened, so that the vaporized hydrogen peroxide liquid can enter the sterilization cavity, and thus the sterilization operation is performed.
Description
Technical Field
The utility model relates to the technical field of sterilization of freeze-drying machines, in particular to a vaporized hydrogen peroxide sterilization device of a freeze-drying machine.
Background
In the process of medicine production and in biological laboratories, articles and space environments in a certain space are usually required to be sterilized and disinfected, and the accuracy of product quality and experimental effect is ensured, VHP sterilization refers to the sterilization of a freeze dryer by gasified hydrogen peroxide, so that the components of cells are changed to achieve the aim of sterilization, the freeze dryer has wide application in the fields of bioengineering, medical industry, food industry and the like, the freeze dryer needs to be sterilized, and the online sterilization methods of the current freeze dryer comprise steam sterilization, ethylene oxide sterilization, vaporized hydrogen peroxide sterilization and the like.
The utility model discloses a method and a device for online sterilization of a freeze dryer, as disclosed in the publication No. CN102631692B, and the utility model discloses a method and a device for online sterilization of a freeze dryer, which comprises a hydrogen peroxide liquid storage bottle, a compressed air inlet port, a vaporizer for mixing hydrogen peroxide liquid and compressed air into hydrogen peroxide vapor, a PLC electric appliance control system and a shell for fixing all parts. The compressed air is changed into hydrogen peroxide vapor after being mixed by the hydrogen peroxide liquid in the vaporizer, and the inner surfaces of the drying chamber, the vacuum condensing chamber and the related pipelines of the freeze dryer are sterilized, so that a sterile environment suitable for medicine production is created, and the risk of microbial contamination to medicines in the freeze drying process is avoided. The method and the device for online sterilization of the freeze dryer have the advantages of good repeatability of the sterilization process, no harm and no pollution after sterilization, and the like.
In summary, the following technical problems exist in the prior art: when the existing sterilization device is used, the inside sterilization space of the existing sterilization device needs to be cleaned after the use is completed, the protective door needs to be opened, the sealing performance between the protective door and the sterilization space is poor, and therefore outside air is easy to enter the sterilization space and inconvenient to use.
Disclosure of Invention
The utility model aims to provide a vaporized hydrogen peroxide sterilizing device of a freeze dryer, so as to solve the problems in the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a freeze dryer vaporization hydrogen peroxide sterilization apparatus, includes the device shell, the outer wall of device shell articulates there is the sealing door, the inside of device shell is provided with the sterilization chamber, the inner wall in sterilization chamber is provided with the sealing block, the internal connection of sealing block has sealing gasket, one side in sterilization chamber is provided with the hydrogen peroxide liquid reserve tank, the last surface mounting of hydrogen peroxide liquid reserve tank has the delivery pump, the input of delivery pump is connected with the connecting pipe, the output of delivery pump is connected with the conveyer pipe, the outer wall of conveyer pipe is provided with first solenoid valve.
Preferably, the sealing door forms a sealing structure with the sterilization cavity through a sealing gasket and a sealing block, and the hydrogen peroxide liquid storage tank is fixedly connected with the device shell.
Preferably, the conveying pump and the hydrogen peroxide liquid storage tank form a communication structure through a connecting pipe, and the sterilizing cavity forms a communication structure through the conveying pipe and the first electromagnetic valve.
Preferably, the conveying pipe is further provided with:
the vaporizer is arranged on the outer wall of the conveying pipe and is close to one side of the first electromagnetic valve, a preheating piece is arranged above the vaporizer, and a heating pipe is arranged in the preheating piece.
Preferably, the vaporizer is fixedly connected with the conveying pipe, and the heating pipe is fixedly connected with the preheating piece.
Preferably, the sterilization chamber is further provided with:
the heater, it sets up the lower surface in sterilization chamber, sterilization chamber's internally mounted has hydrogen peroxide gas sensor, sterilization chamber's upper surface installs the evacuation pump, one side of evacuation pump is provided with the second solenoid valve, the output of evacuation pump is connected with the blast pipe.
Preferably, the hydrogen peroxide gas sensor is connected with the sterilization cavity through screws, and the sterilization cavity is communicated with the vacuumizing pump through a second electromagnetic valve.
The above description shows that, by the above technical solution of the present application, the technical problem to be solved by the present application can be necessarily solved.
Meanwhile, through the technical scheme, the utility model has at least the following beneficial effects:
according to the utility model, the sealing door can seal the sterilization cavity through the sealing block arranged in the sterilization cavity under the cooperation of the sealing gasket, so that external impurities can be effectively reduced from entering the sterilization cavity, and the practicability is improved; the hydrogen peroxide liquid in the hydrogen peroxide liquid storage tank can be pumped out through a delivery pump arranged on the hydrogen peroxide liquid storage tank under the cooperation of the connecting pipe, and the first electromagnetic valve is opened, so that the vaporized hydrogen peroxide liquid can enter the sterilization cavity, and sterilization operation is performed;
according to the utility model, the vaporizer is arranged to vaporize the hydrogen peroxide liquid, and the heating pipe arranged in the preheating piece is used to preheat the hydrogen peroxide liquid, so that the subsequent vaporization is convenient; through the evacuation pump that sets up, can take out the air in the sterilization chamber, the second solenoid valve is opened in step and is made the air discharge to outside through the blast pipe, can carry out the evacuation operation to sterilization intracavity portion like this to create a sterile environment to the sterilization chamber.
Drawings
FIG. 1 is a schematic perspective view of the housing of the device of the present utility model;
FIG. 2 is a schematic cross-sectional view of the housing of the device of the present utility model;
FIG. 3 is an enlarged schematic view of a portion of FIG. 2A in accordance with the present utility model;
fig. 4 is a schematic cross-sectional view of a preheating member according to the present utility model.
In the figure: 1. a device housing; 2. sealing the door; 3. a sterilization chamber; 4. a sealing block; 5. a sealing gasket; 6. a hydrogen peroxide reservoir; 7. a transfer pump; 8. a connecting pipe; 9. a delivery tube; 10. a first electromagnetic valve; 11. a heater; 12. a vaporizer; 13. a preheating piece; 14. heating pipes; 15. a hydrogen peroxide gas sensor; 16. a vacuum pump; 17. a second electromagnetic valve; 18. and an exhaust pipe.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Description of the preferred embodiments
As shown in fig. 1-3, the present utility model provides a technical solution: the utility model provides a freeze dryer vaporization hydrogen peroxide sterilization apparatus, including device shell 1, the outer wall of device shell 1 articulates there is sealing door 2, the inside of device shell 1 is provided with sterilization chamber 3, sterilization chamber 3's inner wall is provided with sealing block 4, sealing block 4's internal connection has sealing gasket 5, one side of sterilization chamber 3 is provided with hydrogen peroxide liquid reserve tank 6, hydrogen peroxide liquid reserve tank 6's upper surface mounting has delivery pump 7, delivery pump 7's input is connected with connecting pipe 8, delivery pump 7's output is connected with conveyer pipe 9, conveyer pipe 9's outer wall is provided with first solenoid valve 10.
Example two
The scheme in the first embodiment is further described below in conjunction with a specific working manner, and the details are described below:
as shown in fig. 1, 2 and 3, as a preferred embodiment, on the basis of the above manner, further, the sealing door 2 forms a sealing structure between the sealing gasket 5 and the sealing block 4 and the sterilization cavity 3, the hydrogen peroxide liquid storage tank 6 is fixedly connected with the device housing 1, and the sealing door 2 can seal the sterilization cavity 3 under the cooperation of the sealing gasket 5 through the sealing block 4 arranged in the sterilization cavity 3, so that external impurities can be effectively reduced from entering the sterilization cavity 3, and the practicability is improved; the delivery pump 7 passes through the connecting pipe 8 and constitutes the communication structure between hydrogen peroxide liquid storage tank 6, and the sterilization chamber 3 passes through the delivery pipe 9 and constitutes the communication structure between first solenoid valve 10 and the delivery pump 7, through the delivery pump 7 that sets up on the hydrogen peroxide liquid storage tank 6, under the cooperation of connecting pipe 8, can take out the hydrogen peroxide liquid in the hydrogen peroxide liquid storage tank 6, the first solenoid valve 10 of setting opens for the hydrogen peroxide liquid after the vaporization can get into sterilization chamber 3 in, thereby carries out sterilization operation.
As shown in fig. 1, 2 and 4, as a preferred embodiment, further, a vaporizer 12 is disposed on the outer wall of the conveying pipe 9 and near one side of the first electromagnetic valve 10, the vaporizer 12 is fixedly connected with the conveying pipe 9, a preheating piece 13 is disposed above the vaporizer 12, a heating pipe 14 is mounted in the preheating piece 13, the heating pipe 14 is fixedly connected with the preheating piece 13, hydrogen peroxide liquid can be vaporized through the disposed vaporizer 12, and the hydrogen peroxide liquid can be preheated through the heating pipe 14 disposed in the preheating piece 13, so that subsequent vaporization is facilitated; the heater 11, it sets up the lower surface in sterilization chamber 3, the internally mounted in sterilization chamber 3 has hydrogen peroxide gas sensor 15, be screw connection between hydrogen peroxide gas sensor 15 and the sterilization chamber 3, the last surface mounting in sterilization chamber 3 has evacuation pump 16, one side of evacuation pump 16 is provided with second solenoid valve 17, the output of evacuation pump 16 is connected with blast pipe 18, constitute the communication structure between sterilization chamber 3 and the evacuation pump 16 through second solenoid valve 17, through the evacuation pump 16 of setting, can take out the air in the sterilization chamber 3, the synchronous opening of second solenoid valve 17 makes the air discharge outside through blast pipe 18, like this can carry out the evacuation operation to sterilization chamber 3 inside, thereby create a sterile environment to sterilization chamber 3.
From the above, it can be seen that:
the utility model aims at the technical problems that: when the existing sterilization device is used, the sterilization space inside the sterilization device needs to be cleaned after the use is completed, the protective door needs to be opened, and the sealing property between the protective door and the sterilization space is poor, so that external air is easy to enter the sterilization space, and the use is inconvenient; the technical scheme of each embodiment is adopted. Meanwhile, the implementation process of the technical scheme is as follows:
before the hydrogen peroxide sterilizing device is vaporized by the freeze dryer, the device shell 1 is placed at a proper position, the inner wall of the sterilizing cavity 3 can be cleaned by opening the sealing door 2 on the device shell 1, when the sealing door 2 is closed, the sealing block 4 and the sealing gasket 5 are matched to play a role in sealing, external impurities can be effectively reduced to enter the sterilizing cavity 3, when the hydrogen peroxide sterilizing device is used, the vacuumizing pump 16 arranged on the sterilizing cavity 3 is controlled by the PLC controller to start, the air in the sterilizing cavity 3 can be pumped out, meanwhile, the second electromagnetic valve 17 is controlled to be synchronously opened to enable the air to be discharged to the outside through the exhaust pipe 18, so that the vacuumizing operation can be carried out on the inside of the sterilizing cavity 3, a sterile environment is created for the sterilizing cavity 3, the conveying pump 7 is controlled by the conveying pump 7 arranged on the hydrogen peroxide liquid storage tank 6, under the cooperation of the connecting pipe 8, the hydrogen peroxide liquid in the hydrogen peroxide liquid storage tank 6 can be pumped out and sent to the preheating piece 13 through the conveying pipe 9, under the cooperation of the heating pipe 14, the hydrogen peroxide liquid can be preheated, then the hydrogen peroxide liquid is gasified through the gasifier 12, meanwhile, the first electromagnetic valve 10 is controlled to be opened, so that the gasified hydrogen peroxide liquid can enter the sterilizing cavity 3 to perform sterilizing operation, the heater 11 arranged in the sterilizing cavity 3 can heat the gasified hydrogen oxide liquid to improve sterilizing effect, the hydrogen peroxide gas sensor 15 can detect the gasified hydrogen oxide liquid in the sterilizing cavity 3, when the concentration is detected to be set, the PLC controller controls the conveying pump 7 to be closed, when the concentration is detected to be reduced, the PLC is arranged to control the conveying pump 7 to convey the hydrogen oxide liquid again until sterilization is completed.
Through above-mentioned setting, this application must solve above-mentioned technical problem, simultaneously, realizes following technical effect:
according to the utility model, the sealing block 4 arranged in the sterilization cavity 3 is matched with the sealing gasket 5, so that the sealing door 2 can seal the sterilization cavity 3, external impurities can be effectively reduced from entering the sterilization cavity 3, and the practicability is improved; the hydrogen peroxide liquid in the hydrogen peroxide liquid storage tank 6 can be pumped out through the delivery pump 7 arranged on the hydrogen peroxide liquid storage tank 6 under the cooperation of the connecting pipe 8, and the first electromagnetic valve 10 is opened, so that the vaporized hydrogen peroxide liquid can enter the sterilization cavity 3, and sterilization operation is performed;
according to the utility model, the vaporizer 12 is arranged to vaporize the hydrogen peroxide liquid, and the heating pipe 14 arranged in the preheating piece 13 is used to preheat the hydrogen peroxide liquid, so that the subsequent vaporization is convenient; through the vacuum pump 16 that sets up, can take out the air in the sterilization chamber 3, the synchronous opening of second solenoid valve 17 makes the air discharge outside through blast pipe 18, can carry out the evacuation operation to sterilization chamber 3 inside like this to create a sterile environment to sterilization chamber 3.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The freeze dryer vaporization hydrogen peroxide sterilization apparatus, its characterized in that includes:
device shell (1), the outer wall of device shell (1) articulates there is sealing door (2), the inside of device shell (1) is provided with sterilization chamber (3), the inner wall in sterilization chamber (3) is provided with sealing block (4), the internal connection of sealing block (4) has sealing gasket (5), one side in sterilization chamber (3) is provided with hydrogen peroxide liquid reserve tank (6), the last surface mounting of hydrogen peroxide liquid reserve tank (6) has delivery pump (7), the input of delivery pump (7) is connected with connecting pipe (8), the output of delivery pump (7) is connected with conveyer pipe (9), the outer wall of conveyer pipe (9) is provided with first solenoid valve (10).
2. The vaporized hydrogen peroxide sterilizing device of a freeze dryer according to claim 1, wherein the sealing door (2) forms a sealing structure with the sterilizing cavity (3) through a sealing gasket (5) and a sealing block (4), and the hydrogen peroxide liquid storage tank (6) is fixedly connected with the device shell (1).
3. The vaporized hydrogen peroxide sterilizing device according to claim 1, wherein the delivery pump (7) and the hydrogen peroxide liquid storage tank (6) form a communicating structure through a connecting pipe (8), and the sterilizing chamber (3) and the delivery pump (7) form a communicating structure through a delivery pipe (9) and a first electromagnetic valve (10).
4. The lyophilizer vaporizing hydrogen peroxide sterilization apparatus according to claim 1, wherein the transport pipe (9) is further provided with:
the vaporizer (12) is arranged on the outer wall of the conveying pipe (9) and is close to one side of the first electromagnetic valve (10), a preheating piece (13) is arranged above the vaporizer (12), and a heating pipe (14) is arranged in the preheating piece (13).
5. The vaporized hydrogen peroxide sterilizing apparatus according to claim 4, wherein the vaporizer (12) is fixedly connected with the delivery pipe (9), and the heating pipe (14) is fixedly connected with the preheating piece (13).
6. The freeze dryer vaporized hydrogen peroxide sterilization apparatus according to claim 1, wherein the sterilization chamber (3) is further provided with:
the heater (11) is arranged on the lower surface of the sterilization cavity (3), a hydrogen peroxide gas sensor (15) is arranged in the sterilization cavity (3), a vacuumizing pump (16) is arranged on the upper surface of the sterilization cavity (3), a second electromagnetic valve (17) is arranged on one side of the vacuumizing pump (16), and an exhaust pipe (18) is connected with the output end of the vacuumizing pump (16).
7. The vaporized hydrogen peroxide sterilizing device of the freeze dryer according to claim 6, wherein the hydrogen peroxide gas sensor (15) is connected with the sterilizing chamber (3) through a screw, and the sterilizing chamber (3) is communicated with the vacuumizing pump (16) through a second electromagnetic valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320492988.2U CN219307468U (en) | 2023-03-15 | 2023-03-15 | Vaporized hydrogen peroxide sterilizing device of freeze dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320492988.2U CN219307468U (en) | 2023-03-15 | 2023-03-15 | Vaporized hydrogen peroxide sterilizing device of freeze dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219307468U true CN219307468U (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320492988.2U Active CN219307468U (en) | 2023-03-15 | 2023-03-15 | Vaporized hydrogen peroxide sterilizing device of freeze dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219307468U (en) |
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- 2023-03-15 CN CN202320492988.2U patent/CN219307468U/en active Active
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