Condensing box liquid collecting device of freeze dryer

Abstract

The utility model relates to a liquid collecting device for a condensing box of a freeze dryer, which comprises the condensing box, a connecting pipe is arranged at the bottom of the condensing box, the connecting pipe is connected with a collecting barrel, a liquid inlet electromagnetic valve is arranged on the connecting pipe, a liquid discharging pipe is arranged at the bottom of the collecting barrel, and an emptying electromagnetic valve is arranged on the liquid discharging pipe. The condensing box is simple in structure and low in cost, the vacuum degree and the material capturing capacity of the condensing box can be greatly improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of freeze dryers, and particularly relates to a liquid collection device for a condensation box of a freeze dryer. Background Art

[0002] The function of the condensation box of a freeze dryer is to capture and solidify substances such as sublimated water and attach them to the condensation pipe. When there are substances such as ethanol in the material, since the freezing point of ethanol (-117.3°C) is lower than the lowest refrigeration point of the freeze dryer (-80°C), ethanol cannot be solidified and captured, so ethanol will always remain in the condensation box, which is likely to cause problems such as an increase in the vacuum degree of the condensation box, a decrease in the capture ability, and emulsification of the vacuum pump oil. Content of the Utility Model

[0003] (I) Purpose of the Utility Model

[0004] In order to overcome the above deficiencies, the purpose of the utility model is to provide a liquid collection device for a condensation box of a freeze dryer to solve the above technical problems.

[0005] (II) Technical Solution

[0006] To achieve the above purpose, the technical solution provided by this application is as follows:

[0007] A liquid collection device for a condensation box of a freeze dryer includes a condensation box. A connecting pipe is provided at the bottom of the condensation box, and the connecting pipe is connected to a collection cylinder. A liquid inlet solenoid valve is provided on the connecting pipe. A drain pipe is provided at the bottom of the collection cylinder, and an evacuation solenoid valve is provided on the drain pipe.

[0008] Preferably, the condensation box includes a box body and condensation pipes uniformly arranged in the box body.

[0009] Preferably, a visible manhole is provided on the box body.

[0010] Preferably, the condensation pipes are arranged in a snake shape in the condensation box.

[0011] Preferably, the collection cylinder is connected to an air mixing pipe, an air mixing solenoid valve is provided on the air mixing pipe, and the end of the air mixing pipe receives filtered air in the clean area.

[0012] Preferably, a pressure sensor and a liquid level gauge are provided on the collection cylinder.

[0013] Advantageous Effects:

[0014] The structure of the utility model is simple and the cost is low, but it can greatly improve the vacuum degree of the condensation box and the material capture ability, and improve the working efficiency. Description of the Drawings

[0015] Figure 1is a schematic structural view of the present utility model;

[0016] Figure 2 is an internal structural view of the condensation box and the collection cylinder of the present utility model. Detailed implementation manners

[0017] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following combines with the detailed implementation manners and refers to the appended Figure 1-2 , and further elaborates on the present utility model in detail. It should be understood that these descriptions are only exemplary and do not intend to limit the scope of the present utility model. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0018] A liquid collection device for the condensation box of a freeze dryer provided by the present utility model includes a condensation box 1. The condensation box 1 includes a box body 9 and condensation tubes 10 uniformly arranged in the box body 9. Through the arrangement of the condensation tubes 10, it is possible to set a visual manhole 12 on the box body 9. Through the visual manhole 12, it is convenient to observe the sublimation state of moisture in the condensation box 9. The condensation tubes 10 are arranged in a serpentine shape in the box body 9 of the condensation box, which is convenient for capturing and sublimating substances such as moisture into a solid state and adhering to the condensation tubes 10.

[0019] A connecting pipe 13 is provided at the bottom of the condensation box 1. The connecting pipe 13 is connected to the collection cylinder 3. The non-solidifying liquid in the condensation box 1 flows into the collection cylinder 3 through the connecting pipe 13, which does not affect the capture of materials in the condensation box. An inlet liquid solenoid valve 7 is provided on the connecting pipe 13. A drain pipe 5 is provided at the bottom of the collection cylinder 3. An emptying solenoid valve 6 is provided on the drain pipe 5. The collection cylinder 3 is connected to an air mixing pipe 11. An air mixing solenoid valve 2 is provided on the air mixing pipe 11. The end of the air mixing pipe receives filtered air from the clean area. A pressure sensor 8 and a liquid level gauge 4 are provided on the collection cylinder 3.

[0020] When the present utility model is in use, the connecting pipe of the collection cylinder is set at the lowest point of the condensation box. During the operation of the equipment, the inlet liquid solenoid valve is opened, and the air mixing solenoid valve and the emptying solenoid valve are closed. The non-solidifying liquid flows into the collection cylinder. When the liquid level of the non-solidifying liquid in the collection cylinder is higher than the set value of the liquid level gauge of the collection cylinder, the inlet liquid solenoid valve is closed and the emptying solenoid valve is closed, and the air mixing solenoid valve is opened. The filtered air from the clean area enters the collection cylinder, making the pressure in the collection cylinder balanced with the outside world, preventing external air and other substances from entering the collection cylinder due to the air pressure in the collection cylinder being lower than the outside air pressure, resulting in pollution; after the pressure in the collection cylinder is balanced with the outside world, the inlet liquid solenoid valve is closed, and the air mixing solenoid valve and the emptying solenoid valve are opened, and the non-solidifying liquid flows out of the collection cylinder; when the liquid level of the non-solidifying liquid is lower than the set value of the liquid level gauge of the collection cylinder; the air mixing solenoid valve and the emptying solenoid valve are closed, and the inlet liquid solenoid valve is opened, and the collection of non-solidifying liquid begins.

[0021] The structure of the utility model is simple and the cost is relatively low. However, it can greatly improve the vacuum degree of the condensation box and the material capturing ability, thus improving the working efficiency.

[0022] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0023] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A condensation tank liquid collection device for a freeze dryer, characterized in that: It comprises a condensation box, the bottom of which is provided with a connecting pipe, the connecting pipe is connected to a collecting tube, the connecting pipe is provided with a liquid inlet solenoid valve, the bottom of the collecting tube is provided with a liquid discharge pipe, the liquid discharge pipe is provided with an emptying solenoid valve.

2. The condensation tank liquid collecting device of a freeze dryer according to claim 1, characterized in that: The condensation box comprises a box body and condensation pipes evenly arranged in the box body.

3. The condensation tank liquid collecting device of a freeze dryer according to claim 2, characterized in that: The box body is provided with a visible manhole.

4. The condensation tank liquid collecting device of a freeze dryer according to claim 2, characterized in that: The condenser tube is arranged in a serpentine shape in the condenser box.

5. The condensation tank liquid collecting device of a freeze dryer according to claim 1, characterized in that: The collecting cylinder is connected to an aeration pipe, an aeration solenoid valve is arranged on the aeration pipe, and the end of the aeration pipe receives filtered air from the clean area.

6. The condensation tank liquid collecting device of a freeze dryer according to claim 1, characterized in that: The collecting cylinder is provided with a pressure sensor and a liquid level meter.

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