Pharmaceutical vacuum drying box capable of being uniformly heated

Abstract

The utility model discloses a pharmaceutical vacuum drying oven capable of being uniformly heated. The pharmaceutical vacuum drying oven comprises a drying oven body, a tray placing frame, a vacuumizing pipeline, a carbon fiber heating pipe, a reflecting cover and an annular heating pipe, the tray placing frame is arranged in the drying box body, the carbon fiber heating pipes are arranged on the two side walls of the drying box body, and the reflecting cover is arranged on the carbon fiber heating pipes in a half-surrounding mode. The annular heating pipe can generate heat and radiate the heat upwards to the tray placing frame so as to provide the heat for the tray placing frame in the vertical direction, and the reflecting cover is of a C-shaped structure and can reflect the heat generated by the carbon fiber heating pipe to the tray placing frame so as to provide the heat for the tray placing frame in the horizontal direction. Therefore, the tray placing rack is uniformly heated; meanwhile, the heat conduction gaps are formed in the bearing parts of the tray placing frame, and heat in the vertical direction can be more uniformly transmitted to the bearing parts of different layers through the heat conduction gaps, so that the heating uniformity of the tray placing frame is improved.

Description

Technical Field

[0001] The utility model relates to the field of vacuum drying ovens, in particular to a pharmaceutical vacuum drying oven which can be heated evenly. Background Art

[0002] The vacuum drying oven is specially designed for drying heat-sensitive, easily decomposable and easily oxidizable substances. It can maintain a certain vacuum degree in the working chamber during operation and can fill the interior with inert gas. In particular, some items with complex components can also be dried quickly. It is widely used in research and application fields such as biochemistry, chemical pharmaceuticals, medical care and health, and is particularly suitable for fast and efficient drying of heat-sensitive, easily decomposable, easily oxidizable substances and items with complex components.

[0003] In the prior art, when a vacuum drying oven is used to dry some API powders, the API powders are usually placed in a tray, and then the tray is pushed into the tray compartment of the vacuum drying oven for drying. However, when there are a large number of trays, the trays are often placed in layers, and since the heat fluidity between the upper and lower tray compartments is poor, this leads to differences in the heating conditions of the API powders in different layers, thereby affecting the uniformity of the drying of the API powders. In addition, when there are a large number of trays, operators are also required to place or take out the trays one by one in the vacuum drying oven, thereby affecting the loading and unloading operation efficiency of the vacuum drying oven.

[0004] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a pharmaceutical vacuum drying oven which has the advantages of convenient operation, good heat fluidity and uniform heating.

[0006] To achieve this purpose, the utility model adopts the following technical scheme: a pharmaceutical vacuum drying oven capable of evenly heating, comprising a drying oven body, a tray placement rack, a vacuum evacuation pipeline, a carbon fiber heating tube, a reflective cover and a ring heating tube;

[0007] The drying box has a containing chamber, the tray placement rack is arranged in the drying box, and the tray placement rack is used to place a loading tray equipped with raw material drug powder;

[0008] A guide rail is provided at the bottom of the drying box body, and a pulley is provided at the bottom of the tray placement rack, and the pulley can move along the guide rail to allow the tray placement rack to slide into or out of the accommodating chamber;

[0009] The vacuum pipe is arranged on the top of the drying box and communicates with the accommodating chamber, and the vacuum pipe is used for vacuuming the accommodating chamber;

[0010] The annular heating pipe is arranged at the bottom of the drying box, and is used to generate heat and radiate it upward to the tray placement rack;

[0011] The carbon fiber heating tube is arranged on the two side walls of the drying box body, the reflective cover is semi-enclosed by the carbon fiber heating tube, the reflective cover is in a C-shaped structure, the opening of the reflective cover is arranged toward the tray placement rack, and the reflective cover is used to reflect the heat generated by the carbon fiber heating tube to the tray placement rack.

[0012] By adopting the above technical solution, in the pharmaceutical vacuum drying oven capable of being heated evenly, the tray placement rack is provided with a plurality of supporting parts spaced apart from each other in the upper and lower parts;

[0013] The supporting part includes a supporting rod and a connecting plate. The multiple supporting rods are horizontally arranged, and a heat-conducting gap is formed between two adjacent supporting rods. The connecting plate is longitudinally arranged on the supporting rods to connect the multiple supporting rods.

[0014] By adopting the above-mentioned technical solutions, in the pharmaceutical vacuum drying oven that can be heated evenly, a sink is provided at the bottom of the drying oven body, a plurality of tube clamping positioning plates are provided on the sink, and the tube clamping positioning plates are provided with clamps for clamping the annular heating tube.

[0015] By adopting the above-mentioned technical solutions, the pharmaceutical vacuum drying oven that can be heated evenly also includes a ramp, which is arranged at the front end of the drying oven body to allow the tray placement rack to be pushed into or pulled out of the accommodating chamber.

[0016] By adopting the above-mentioned technical solutions, in the pharmaceutical vacuum drying oven that can be heated evenly, a door is provided at the front end of the drying oven body, the door is hingedly connected to the drying oven body, and a handle for a person to hold is provided on the door.

[0017] By adopting the above-mentioned technical solutions, the pharmaceutical vacuum drying oven capable of being heated evenly also includes a temperature sensor and a vacuum pressure gauge;

[0018] The temperature sensor and the vacuum pressure gauge pass through the box door and extend into the accommodating chamber. The temperature sensor is used to detect the temperature in the accommodating chamber, and the vacuum pressure gauge is used to detect the vacuum degree in the accommodating chamber.

[0019] By adopting the above-mentioned technical solutions, in the pharmaceutical vacuum drying oven capable of being heated evenly, a knob locking member is further provided between the drying oven body and the oven door;

[0020] The knob locking member is used to lock the box door when the box door is in a closed state.

[0021] By adopting the above-mentioned technical solutions, in the pharmaceutical vacuum drying oven capable of being heated evenly, the reflective cover is made of aluminum plate.

[0022] By adopting the above-mentioned technical solutions, in the pharmaceutical vacuum drying oven that can be heated evenly, the oven door is also provided with a transparent observation window for convenient observation of the internal conditions.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] The annular heating tube of the utility model can generate heat and radiate upward to the pallet placement rack to provide heat to the pallet placement rack in the vertical direction. The reflective cover has a C-shaped structure, which can reflect the heat generated by the carbon fiber heating tube to the pallet placement rack to provide heat to the pallet placement rack in the horizontal direction, thereby achieving uniform heating of the pallet placement rack; at the same time, a heat conduction gap is provided on the supporting part of the pallet placement rack, and the heat conduction gap can make the heat in the vertical direction be more evenly transferred to the supporting parts of different layers, thereby improving the heating uniformity of the pallet placement rack; in addition, a guide rail is provided at the bottom of the drying box body, and a pulley is provided at the bottom of the pallet placement rack, and the pulley can move along the guide rail. Such a configuration allows the operator to easily push or pull the pallet placement rack into or out of the vacuum drying box, thereby improving the convenience of loading and unloading operations, saving operation time, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0027] Figure 1 This is a schematic diagram of the installation structure of the pallet placement rack of the utility model;

[0028] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 3This is a schematic diagram of the internal structure of the drying box of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the tray placement rack of the present utility model. DETAILED DESCRIPTION

[0031] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in 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.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0033] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0034] like Figures 1 to 4 As shown, the embodiment of the utility model provides a pharmaceutical vacuum drying oven that can be heated evenly, including a drying box body 1, a tray placement rack 2, a vacuum pipe 3, a carbon fiber heating tube 4, a reflective cover 5 and a ring heating tube 6; the drying box body 1 has a accommodating chamber 10, the tray placement rack 2 is arranged in the drying box body 1, the tray placement rack 2 is used to place a loading tray (not shown) equipped with raw material medicine powder, the bottom of the drying box body 1 is provided with a guide rail 11, the bottom of the tray placement rack 2 is provided with a pulley 21, the pulley 21 can be moved along the guide rail 11, so that the tray placement rack 2 can slide into or out of the accommodating chamber 10; the setting of the pulley 21 and the guide rail 11 allows the operator to easily push the tray placement rack 2 into or pull out of the drying box body 1, thereby improving the convenience of loading and unloading operations, saving operation time, and improving work efficiency.

[0035] like Figure 1As shown in the figure, the vacuum pipe 3 is arranged on the top of the drying box 1 and is connected with the accommodating chamber 10. The vacuum pipe 3 is used to vacuum the accommodating chamber 10. The air in the accommodating chamber 10 can be evacuated by vacuum treatment to provide a vacuum environment. Under the vacuum state, the oxygen and moisture in the air will be greatly reduced to reduce the oxidation reaction of the raw material drug powder and avoid oxidative degradation, thereby improving the drying effect of the raw material drug powder. In addition, the vacuum treatment can also reduce the presence of microorganisms and other pollutants in the air, avoid the raw material drug powder from external contamination, and maintain the purity of the raw material drug powder.

[0036] like Figure 1 and Figure 3 As shown, the annular heating tube 6 is arranged at the bottom of the drying box 1, and the annular heating tube 6 is used to generate heat and radiate upward to the tray rack 2. The carbon fiber heating tube 4 is arranged on the two side walls of the drying box 1, and the reflector 5 is semi-enclosed and arranged on the carbon fiber heating tube 4. The reflector 5 is in a C-shaped structure, and the opening of the reflector 5 is arranged toward the tray rack 2. The reflector 5 is used to reflect the heat generated by the carbon fiber heating tube 4 to the tray rack 2. The annular heating tube 6 can generate heat and radiate upward to the tray rack 2 to provide heat to the tray rack 2 in the vertical direction. The reflector 5 is in a C-shaped structure, and the heat generated by the carbon fiber heating tube 4 can be reflected to the tray rack 2 to provide heat to the tray rack 2 in the horizontal direction, thereby realizing uniform heating of the tray rack 2. In addition, the setting of the reflector 5 can effectively reflect the heat generated by the carbon fiber heating tube 4 to the area that needs to be heated, thereby improving the utilization rate of thermal energy.

[0037] like Figure 4 As shown, further, the tray placement rack 2 is provided with a plurality of support parts 22 spaced apart from each other, the support parts 22 include support rods 221 and connecting plates 222, the plurality of support rods 221 are horizontally arranged, a heat-conducting gap 220 is formed between two adjacent support rods 221, and the connecting plates 222 are longitudinally arranged on the support rods 221 to connect the plurality of support rods 221. Through the heat-conducting gaps 220, the heat in the vertical direction can be more evenly transferred to the support parts 22 of different layers, thereby improving the heating uniformity of the tray placement rack 2.

[0038] like Figure 3 As shown, further, a sink 12 is provided at the bottom of the drying box body 1, and a plurality of tube clamping positioning plates 13 are provided on the sink 12. The tube clamping positioning plates 13 are provided with clamping openings 130 for clamping the annular heating tube 6. The setting of the tube clamping positioning plates 13 can improve the installation stability of the annular heating tube 6.

[0039] like Figure 1 As shown, further, a ramp 7 is included, which is arranged at the front end of the drying box 1, so as to allow the tray rack 2 to be pushed into or pulled out of the accommodating chamber 10. The arrangement of the ramp 7 allows the tray rack 2 to move along the inclined surface of the ramp 7 when being pushed in or pulled out, thereby reducing resistance during operation and making the operation smoother and easier.

[0040] like Figure 2 As shown, further, a door 14 is provided at the front end of the drying box 1, and the door 14 is connected to the drying box 1 by a hinge. A handle 141 for a person to hold is provided on the door 14.

[0041] like Figure 2 As shown, further, a temperature sensor 81 and a vacuum pressure gauge 82 are included, the temperature sensor 81 and the vacuum pressure gauge 82 pass through the box door 14 and extend into the accommodating chamber 10, the temperature sensor 81 is used to detect the temperature in the accommodating chamber 10, and the vacuum pressure gauge 82 is used to detect the vacuum degree in the accommodating chamber 10. The temperature sensor 81 can monitor the temperature in the accommodating chamber 10 in real time, so that the control system can adjust the power of the carbon fiber heating tube 4 and the annular heating tube 6 according to the real-time temperature data to maintain a constant temperature and improve the accuracy and consistency of drying; the vacuum pressure gauge 82 can monitor the vacuum degree in the vacuum drying box in real time to avoid the situation where the vacuum is too high or too low.

[0042] like Figure 1 and Figure 2 As shown, further, a knob locking member 15 is provided between the drying box body 1 and the box door 14, and the knob locking member 15 is used to lock the box door 14 when the box door 14 is in a closed state, so as to enhance the sealing between the box door 14 and the drying box body 1 and prevent pressure release.

[0043] Furthermore, the reflector 5 is made of an aluminum plate.

[0044] like Figure 2 As shown, further, the box door 14 is provided with a transparent observation window 142 for convenient observation of the internal conditions.

[0045] As described above, 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 aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A pharmaceutical vacuum drying oven capable of uniform heating, characterized in that: It includes a drying box, a tray placement rack, a vacuum pipe, a carbon fiber heating tube, a reflective cover and a ring heating tube; The drying box has a containing chamber, the tray placement rack is arranged in the drying box, and the tray placement rack is used to place a loading tray equipped with raw material drug powder; A guide rail is provided at the bottom of the drying box body, and a pulley is provided at the bottom of the tray placement rack, and the pulley can move along the guide rail to allow the tray placement rack to slide into or out of the accommodating chamber; The vacuum pipe is arranged on the top of the drying box and communicates with the accommodating chamber, and the vacuum pipe is used for vacuuming the accommodating chamber; The annular heating pipe is arranged at the bottom of the drying box, and is used to generate heat and radiate it upward to the tray placement rack; The carbon fiber heating tube is arranged on the two side walls of the drying box body, the reflective cover is semi-enclosed by the carbon fiber heating tube, the reflective cover is in a C-shaped structure, the opening of the reflective cover is arranged toward the tray placement rack, and the reflective cover is used to reflect the heat generated by the carbon fiber heating tube to the tray placement rack.

2. The pharmaceutical vacuum drying oven capable of uniform heating according to claim 1, characterized in that: The tray placement rack is provided with a plurality of supporting parts spaced apart from each other in an upper and lower direction; The supporting part includes a supporting rod and a connecting plate. The multiple supporting rods are horizontally arranged, and a heat-conducting gap is formed between two adjacent supporting rods. The connecting plate is longitudinally arranged on the supporting rods to connect the multiple supporting rods.

3. The pharmaceutical vacuum drying oven capable of uniform heating according to claim 1, characterized in that: A sink is provided at the bottom of the drying box body, a plurality of tube clamping positioning plates are provided on the sink, and clamping openings for clamping the annular heating tube are provided on the tube clamping positioning plates.

4. The pharmaceutical vacuum drying oven capable of uniform heating according to claim 1, characterized in that: The invention also comprises a ramp, which is arranged at the front end of the drying box body and is used for the tray placement rack to be pushed into or pulled out of the accommodating chamber.

5. The pharmaceutical vacuum drying oven capable of uniform heating according to claim 1, characterized in that: A box door is provided at the front end of the drying box body. The box door is connected to the drying box body through a hinge, and a handle for a person to hold is provided on the box door.

6. The pharmaceutical vacuum drying oven capable of uniform heating according to claim 5, characterized in that: It also includes a temperature sensor and a vacuum pressure gauge; The temperature sensor and the vacuum pressure gauge pass through the box door and extend into the accommodating chamber. The temperature sensor is used to detect the temperature in the accommodating chamber, and the vacuum pressure gauge is used to detect the vacuum degree in the accommodating chamber.

7. The pharmaceutical vacuum drying oven capable of uniform heating according to claim 5, characterized in that: A knob locking member is also provided between the drying box body and the box door; The knob locking member is used to lock the box door when the box door is in a closed state.

8. The pharmaceutical vacuum drying oven capable of uniform heating according to claim 5, characterized in that: The reflector is made of aluminum plate.

9. The pharmaceutical vacuum drying oven capable of uniform heating according to claim 5, characterized in that: The box door is also provided with a transparent observation window for convenient observation of the internal conditions.

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