Sealing door for freeze dryer and freeze dryer

Abstract

The utility model provides a closing door for freeze dryer and freeze dryer wherein the closing door comprises a door body and a driving assembly, the driving assembly is used for driving the door body to open or close, a liquid flow channel is arranged in the door body, and the liquid flow channel is used for the circulation of heating liquid or cooling liquid. The temperature of the sealing door can be timely returned to the normal temperature, the surface of the sealing door is prevented from being dewed, the whole medicine drying period is shortened, and the overall productivity is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of freeze dryers, in particular to a closed door for a freeze dryer and the freeze dryer. Background Art

[0002] At present, freeze dryers have the following shortcomings: the closed door only has conventional insulation solutions, and cannot be returned to room temperature in time after pre-freezing, resulting in condensation on the surface of the closed door; when the online sterilization system is finished sterilizing, the closed door is hot and the cooling rate is slow, which increases the entire drug drying cycle and reduces production capacity; the closed door is hot after the online sterilization system is finished sterilizing, resulting in decomposition of hydrogen peroxide vapor during sterilization of the entire closed door, thereby increasing the risk of excessive bacteria in the isolator.

[0003] The utility model with publication number CN212457629U discloses a small door for a freeze dryer and a freeze dryer, including an outer frame, a cantilever, a driving mechanism, a small door body and a locking mechanism. However, the small door for the freeze dryer cannot be restored to normal temperature in time after pre-freezing or sterilization, resulting in condensation on the surface of the closed door or increasing the entire drug drying cycle. Utility Model Content

[0004] The utility model aims to solve the defects in the prior art and provide a closed door for a freeze dryer and a freeze dryer, so that the closed door can be returned to normal temperature in time to avoid condensation on the surface of the closed door.

[0005] To achieve the above-mentioned purpose, the utility model provides a closed door for a freeze dryer, comprising a door body and a drive assembly, wherein the drive assembly is used to drive the door body to open or close, and a liquid flow channel is provided in the door body, wherein the liquid flow channel is used for the circulation of heating liquid or cooling liquid.

[0006] After the freeze dryer is pre-frozen or the sterilization system is sterilized, the door body is closed and the liquid flow channel is opened so that the heating liquid or cooling liquid flows in the liquid flow channel, so that the door body is quickly restored to normal temperature.

[0007] The utility model can solve the problem of condensation on the door surface due to the failure to return to normal temperature in time after pre-freezing by providing a liquid flow channel for the circulation of heating liquid or cooling liquid in the door body; it can also increase the door body cooling rate after sterilization by the sterilization system, reduce the entire drug drying cycle, increase the overall production capacity, and avoid the decomposition of hydrogen peroxide vapor during VHP sterilization in the isolator, thereby reducing the risk of excessive bacteria in the isolator. In the utility model, the door body temperature control is stable, the leakage detection of the isolator and the vacuum fluctuation value are reduced, reducing the verification risk.

[0008] Optionally, the liquid flow channel is arranged in a serpentine shape, which can evenly heat or cool the door body.

[0009] Optionally, the door body is provided with a liquid inlet pipe and a liquid outlet pipe respectively connected to the two ends of the liquid flow channel.

[0010] Optionally, the liquid inlet pipe and the liquid outlet pipe are both covered with a first sealing sleeve to prevent leakage of the heating liquid or the cooling liquid and contamination of the sterile environment of the freeze dryer.

[0011] Optionally, the driving assembly includes a driving member and a push rod disposed on the driving member, and the push rod is connected to the door body.

[0012] Optionally, the outer sleeve of the push rod is provided with a second sealing sleeve for isolating the push rod from the environment of the freeze dryer to prevent the push rod from polluting the environment inside the freeze dryer, so as to maintain the stability of the internal environment of the freeze dryer.

[0013] Optionally, the driving member is a driving motor.

[0014] The utility model also provides a freeze dryer, comprising the above-mentioned closed door for the freeze dryer

[0015] Beneficial effects:

[0016] After the freeze dryer is pre-frozen or the sterilization system is sterilized, the door body is closed and the liquid flow channel is opened so that the heating liquid or cooling liquid flows in the liquid flow channel, so that the door body is quickly restored to normal temperature.

[0017] The utility model can solve the problem of condensation on the door surface due to the failure to return to normal temperature in time after pre-freezing by providing a liquid flow channel for the circulation of heating liquid or cooling liquid in the door body; it can also increase the door body cooling rate after sterilization by the sterilization system, reduce the entire drug drying cycle, increase the overall production capacity, and avoid the decomposition of hydrogen peroxide vapor during VHP sterilization in the isolator, thereby reducing the risk of excessive bacteria in the isolator. In the utility model, the door body temperature control is stable, the leakage detection of the isolator and the vacuum fluctuation value are reduced, reducing the verification risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 This is a structural diagram of a closed door for a freeze dryer disclosed in the utility model;

[0020] Figure 2 The utility model is a structural diagram of a closed door for a freeze dryer in an open state.

[0021] Figure numerals: 1 door body; 2 liquid flow channel; 3 liquid inlet pipe; 4 liquid outlet pipe; 5 first sealing sleeve; 6 driving member; 7 push rod; 8 second sealing sleeve.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model based on the specific content of the technical solution.

[0025] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0026] Embodiment 1:

[0027] See also Figure 1 and 2 According to the first embodiment of the utility model, a closed door for a freeze dryer includes a door body 1 and a driving assembly, wherein the driving assembly is used to drive the door body 1 to open or close, and a liquid flow channel 2 is provided in the door body 1, wherein the liquid flow channel 2 is used for the circulation of a heating liquid or a cooling liquid.

[0028] Specifically, after pre-freezing in the freeze dryer or sterilization in the sterilization system, the door body 1 is closed, and the liquid flow channel 2 is opened so that the heating liquid or the cooling liquid flows in the liquid flow channel 2, so that the door body 1 is quickly restored to normal temperature.

[0029] The utility model can solve the problem of condensation on the surface of the door body 1 due to the failure to return to normal temperature in time after pre-freezing by providing a liquid flow channel 2 for circulating a heating liquid or a cooling liquid in the door body 1; it can also increase the cooling rate of the door body 1 after sterilization by the sterilization system, reduce the entire drug drying cycle, increase the overall production capacity, and avoid the decomposition of hydrogen peroxide vapor during VHP sterilization in the isolator, thereby reducing the risk of excessive bacteria in the isolator. In the utility model, the temperature control of the door body 1 is stable, the leakage detection of the isolator and the vacuum fluctuation value are reduced, and the verification risk is reduced.

[0030] See also Figure 1 and 2 In some embodiments of the present invention, the liquid flow channel 2 is arranged in a serpentine shape, which can make the door body 1 evenly heated or cooled.

[0031] See also Figure 1 and 2 In some embodiments of the utility model, the door body 1 is provided with a liquid inlet pipe 3 and a liquid outlet pipe 4 respectively connected to the two ends of the liquid flow channel 2, and the external liquid supply device is connected to the liquid inlet pipe 3 and the liquid outlet pipe 4 respectively.

[0032] See also Figure 1 and 2 In some embodiments of the utility model, the liquid inlet pipe 3 and the liquid outlet pipe 4 are both covered with a first sealing sleeve 5 to prevent leakage of the heating liquid or the cooling liquid and contamination of the sterile environment of the freeze dryer.

[0033] See also Figure 1 and 2 In some embodiments of the utility model, the driving assembly includes a driving member 6 and a push rod 7 disposed on the driving member 6, and the push rod 7 is connected to the door body 1. The driving member 6 is used to drive the push rod 7 to extend and retract, thereby lifting and lowering the door body 1 to open or close the freeze dryer.

[0034] See also Figure 1 and 2 In some embodiments of the utility model, the push rod 7 is provided with a second sealing sleeve 8 on the outside to isolate the push rod 7 from the environment of the freeze dryer, thereby preventing the push rod 7 from polluting the environment inside the freeze dryer and maintaining the stability of the internal environment of the freeze dryer.

[0035] See also Figure 1 and 2 In some embodiments of the present invention, the driving member 6 is a driving motor.

[0036] Embodiment 2:

[0037] The freeze dryer according to the second embodiment of the utility model comprises the above-mentioned closed door for the freeze dryer.

[0038] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A closed door for a freeze dryer, characterized in that: The invention comprises a door body (1) and a driving component, wherein the driving component is used to drive the door body (1) to open or close, wherein a liquid flow channel (2) is provided inside the door body (1), and the liquid flow channel (2) is used for the circulation of a heating liquid or a cooling liquid; the liquid flow channel (2) is arranged in a serpentine shape, and the door body (1) is provided with a liquid inlet pipe (3) and a liquid outlet pipe (4) respectively connected to two ends of the liquid flow channel (2), and the outside of the liquid inlet pipe (3) and the liquid outlet pipe (4) are both covered with a first sealing sleeve (5).

2. The closed door according to claim 1, characterized in that: The driving assembly comprises a driving member (6) and a push rod (7) arranged on the driving member (6), and the push rod (7) is connected to the door body (1).

3. The closed door according to claim 2, characterized in that: The push rod (7) is externally sleeved with a second sealing sleeve (8).

4. The closed door according to claim 2, characterized in that: The driving member (6) is a driving motor.

5. A freeze dryer, characterized in that: A closed door for a freeze dryer comprising any one of claims 1 to 4.

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