Medicine conveying structure

Abstract

The utility model discloses a medicine conveying structure which comprises an upper box body, a lower box body, a conveying device and a refrigerating device. Through the design of the blowing cover capable of dynamically adjusting the height, the cold air spraying distance can be adjusted in real time according to the stacking height of the medicine boxes, the problem that the cooling efficiency of the upper layer of stacked medicine is reduced due to the fixed distance is solved, and it is ensured that the interiors of the medicine boxes with different heights can obtain the stable and uniform cooling effect; cold air closed-loop circulation is constructed through an axial flow fan and a pipeline system, traditional one-way lost cold air is recycled, the energy consumption of continuous full-load operation of a refrigeration device is remarkably reduced, meanwhile, cold air waste is reduced, and the energy efficiency optimization requirement of medicine cold chain conveying is met; when the refrigerating device is shut down accidentally, the cold storage material can quickly release cold energy to maintain the low-temperature environment in the box body, and the conveying safety of the heat-sensitive medicine is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to medicine delivery technical field especially relates to a medicine delivery structure. BACKGROUND

[0002] In the medicine production process, some medicines need to provide low temperature environment to ensure the drug efficacy, for example, probiotic drugs, peptide hormone drugs, in the production and transportation link, the existing low temperature conveying belt adopts cold air direct blowing cooling, and the single wind direction is not conducive to the uniform cooling of the medicines in the medicine box, therefore, a cold temperature conveying device is disclosed, which comprises a rack, a conveying belt, a cold air tank, a standby cooling tank, the rack is internally provided with the conveying belt, the rack top is fixedly provided with the cold air tank, the cold air tank bottom is fixedly provided with two standby cooling tanks, the cold air tank comprises a refrigeration device, an upper guard plate, an exhaust plate, a side plate, the upper guard plate two ends are provided with a side plate respectively, the side plates are provided with the exhaust plate between, the exhaust plate one side is provided with a baffle, the upper guard plate bottom is fixedly provided with the refrigeration device, the exhaust plate interior is provided with an exhaust grid, the cold temperature conveying device generates cold air through the refrigeration device, the generated cold air is cooled and conveyed on the conveying belt through the exhaust plate in the cold air tank, and the cold air enters the standby cooling tank through the air hole, a plurality of air strips are formed in the standby cooling tank side wall, the cold air is blown out from the conveying belt side through the standby cooling tank, and the cold air can be blown out from different directions, so that the medicines can be uniformly cooled.

[0003] However, the above-mentioned disclosed technology still has the following defects in actual application: the exhaust plate and the conveying belt have fixed distance, the blowing distance cannot be dynamically adjusted according to the height of the medicine box, when the stacking height of the medicines exceeds 20cm, the upper layer cold air is greatly reduced due to distance attenuation, the cold air only flows out in one direction through the air strip, a closed loop circulation system is not established, the refrigeration device needs to be continuously operated at full load, and the energy consumption is very high, the standby cooling tank only serves as an air flow channel and lacks phase change cold storage material. When the refrigeration device fails, the temperature in the tank rises rapidly, and the requirement of "cold chain interruption less than or equal to 5 minutes" in the GMP specification cannot be met, the air flow speed difference between the exhaust grid and the air strip is large, the standard deviation of the medicine box surface temperature is large, and the stability of the heat-sensitive medicines is affected.

[0004] In view of the above, it is necessary to further improve and optimize the medicine delivery structure to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a medicine delivery structure.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a medicine conveying structure, including upper box, lower box, conveying device, refrigeration plant, the upper box lower wall is fixedly connected with the upper wall of lower box, the inside of lower box is provided with a plurality of sets of cold accumulation block, the left and right two side walls of lower box are close to the position of front wall and are provided with first axial flow fan, two groups first axial flow fan are through a group of air suction pipe and the lower wall of upper box, the right wall of lower box is close to the position of rear wall and is provided with second axial flow fan, second axial flow fan is through air supply pipe and is connected with the upper wall of upper box, the one end of air supply pipe is away from second axial flow fan and is fixedly connected with the air bellow that penetrates the upper wall of upper box, the inside of upper box is provided with the air blower cover through the cylinder, the lower wall of air blower cover is provided with a plurality of sets of air blowing hole, the upper wall of air blower cover is provided with a plurality of sets of air inlet connector, the side wall of air bellow is provided with a plurality of sets of air outlet connector, a plurality of sets air outlet connector is through the hose and is connected with a group of air inlet connector respectively, the inside cavity of air blower cover is provided with multilayer air uniform net, the inside wall of lower box and the inside wall of upper box are all fixedly connected with the heat insulating layer.

[0007] As a further description of the above technical solution:

[0008] The front wall of the lower box is provided with a cold air supplement pipe close to the lower wall, and the lower box is connected with the refrigeration device through the cold air supplement pipe.

[0009] As a further description of the above technical solution:

[0010] The cold accumulation block is composed of an aluminum alloy container, a honeycomb grid and a paraffin-based phase change material filled in the aluminum alloy container, and the filling rate of the honeycomb grid in the aluminum alloy container is 85%-90%.

[0011] As a further description of the above technical solution:

[0012] The cylinder is fixedly connected to the upper wall of the upper box, the cylinder extends through the upper wall of the upper box and into the inside of the upper box, the air blower cover is fixedly connected to the end of the cylinder extending shaft, and the air blower cover and the upper wall of the upper box are connected through two groups of guide rods.

[0013] As a further description of the above technical solution:

[0014] The mesh of the multilayer air uniform net gradually decreases from the air inlet connector to the air blowing hole.

[0015] As a further description of the above technical solution:

[0016] At least one side of the front wall, the rear wall, the left wall and the right wall of the upper box is provided with a temperature sensor.

[0017] As a further description of the above technical solution:

[0018] The heat insulation layer is aerogel, and the heat insulation layer covers 80-95% of the surface area of the inner side wall of the lower box and the inner side wall of the upper box.

[0019] Further description of the above technical solution:

[0020] The upper box is provided with openings on the front and rear sides, the conveying device is arranged to penetrate through the two groups of openings, and the inner side walls of the two groups of openings are provided with door curtains.

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1. Compared with the prior art, the medicine conveying structure can adjust the cold air injection distance in real time according to the stacking height of the medicine boxes by means of the height-adjustable blowing cover design, solves the problem of cooling efficiency attenuation of the upper layer of stacked medicines caused by fixed spacing, ensures that the inside of the medicine boxes of different heights can obtain stable and uniform cooling effect, and is especially suitable for medicine stacking scenes in the height interval of 5-30 cm.

[0023] 2. Compared with the prior art, the medicine conveying structure constructs a cold air closed loop circulation through the axial flow fan and the pipeline system, recycles the traditional one-way lost cold air, significantly reduces the energy consumption of the refrigeration device under continuous full load operation, reduces the waste of cold air, and meets the energy efficiency optimization demand of the medicine cold chain conveying.

[0024] 3. Compared with the prior art, the medicine conveying structure adopts the combined design of phase change cold storage material and heat insulation structure, and when the refrigeration device is accidentally stopped, the cold storage material can quickly release cold energy to maintain the low-temperature environment inside the box, effectively prolongs the temperature out-of-control buffer time, ensures that the key requirement that the cold chain interruption does not exceed 5 minutes in the GMP specification is met, and guarantees the safety of the transportation of heat-sensitive medicines. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model proposes a whole structure schematic view of a medicine conveying structure;

[0026] Figure 2 The utility model proposes a partial sectional view of the internal structure of the lower box of the medicine conveying structure;

[0027] Figure 3 The utility model proposes a partial sectional view of the side surface of the upper box, the blowing cover and the cylinder connecting structure of the medicine conveying structure;

[0028] Figure 4 The utility model proposes a partial sectional view of the side surface of the upper box, the blowing cover and the cylinder connecting structure of the medicine conveying structure; Figure 3 The utility model proposes a partial enlarged view of the position A;

[0029] Figure 5The utility model provides a kind of blowing cover structure schematic diagram of medicine conveying structure.

[0030] Legend:

[0031] 1, upper box body;2, temperature sensor;3, conveying device;4, door curtain;5, lower box body;6, cold air supplement pipe;7, first axial flow fan;8, air suction pipe;9, second axial flow fan;10, air supply pipe;11, guide rod;12, air cylinder;13, heat insulation layer;14, cold storage block;15, blowing cover;16, blowing hole;17, air inlet connector;18, air bellow;19, air outlet connector;20, air uniforming net. Specific embodiments

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Reference Figures 1 to 5 The utility model provides a kind of medicine conveying structure: including upper box body 1, lower box body 5, conveying device 3, refrigerating plant, upper box body 1 lower wall is fixedly connected with the upper wall of lower box body 5, and the front wall of lower box body 5 is close to the position of lower wall and is provided with cold air supplement pipe 6, and lower box body 5 is through cold air supplement pipe 6 and is communicated with refrigerating plant;

[0034] conveying device 3 is used to convey medicine, when temperature sensor 2 detects that the temperature in lower box body 5 is higher than set threshold value, refrigerating plant is conveyed to the cold air in the box through cold air supplement pipe 6, simultaneously, cold storage block 14 absorbs and stores cold energy, realizes cold air on-demand supplement and energy buffering, reduces the start-stop frequency of refrigerating plant, prolongs the service life of equipment;

[0035] To meet the real-time monitoring requirement of GMP specification to medicine conveying temperature, at least one side of the front wall, rear wall, left wall and right wall of upper box body 1 is provided with temperature sensor 2, and the corresponding side wall of lower box body 5 is provided with temperature sensor 2;

[0036] Temperature sensor 2 is used to monitor the temperature inside the box in real time, when temperature is abnormal, the system automatically adjusts the rotating speed of first axial flow fan 7 and second axial flow fan 9 or starts refrigerating plant to supplement cold air, to ensure that the standard deviation of temperature distribution in the box is small, to meet the stability requirement of heat-sensitive medicine;

[0037] In order to solve the problem of rapid temperature rise in the box when the refrigeration device fails, a plurality of groups of cold storage blocks 14 are arranged in the lower box body 5, the cold storage block 14 is composed of an aluminum alloy container embedded with a honeycomb grid filled with paraffin-based phase change material, and the filling rate of the honeycomb grid in the aluminum alloy container of the cold storage block 14 is 85%-90%;

[0038] The cold storage block 14 absorbs and stores cold when the refrigeration device is normally running, and when the equipment is powered off or fails, the phase change material releases cold, combined with the heat preservation effect of the heat insulation layer 13, the temperature rise in the box can be ≤2℃ within 10 minutes, which meets the tolerance requirement of "cold chain interruption ≤5 minutes" in GMP specification;

[0039] In order to reduce the loss of cold air at the inlet and outlet of the conveying device 3, the upper box body 1 is provided with openings on the front and rear sides, and the conveying device 3 is arranged in the two groups of openings. The inner side walls of the two groups of openings are provided with door curtains 4;

[0040] The door curtain 4 is made of flexible silica gel material, which forms an elastic seal with the surface of the conveying device 3 after natural drooping, and the cold air leakage is reduced by about 75%, while allowing the medicine box to pass smoothly and avoiding mechanical jamming;

[0041] In order to adapt to different height medicine box stacking scenes and improve the uniformity of cold air coverage, the upper box body 1 is provided with a blowing cover 15 inside through a gas cylinder 12. The gas cylinder 12 is fixedly connected to the upper wall of the upper box body 1. The extension shaft of the gas cylinder 12 penetrates the upper wall of the upper box body 1 and extends into the interior of the upper box body 1. The blowing cover 15 is fixedly connected to the end of the extension shaft of the gas cylinder 12. The blowing cover 15 and the upper wall of the upper box body 1 are slidingly connected through two groups of guide rods 11;

[0042] According to the stacking height of the medicine box (5-30cm), the gas cylinder 12 drives the blowing cover 15 to rise and fall along the guide rod 11, so that the distance between the blowing hole 16 and the surface of the medicine box is kept within the range of 50-150mm, and the airflow is balanced step by step with the multi-layer air distribution net 20, so that the temperature difference on the surface of the medicine box is greatly compressed;

[0043] In order to construct a cold air closed loop circulation system and reduce cold air loss and energy waste, first axial flow fans 7 are arranged on the left and right side walls of the lower box body 5 close to the front wall. Two groups of first axial flow fans 7 are respectively connected to the lower wall of the upper box body 1 through a group of air suction pipes 8. A second axial flow fan 9 is arranged on the right wall of the lower box body 5 close to the rear wall. The second axial flow fan 9 is connected to the upper wall of the upper box body 1 through an air supply pipe 10. One end of the air supply pipe 10 away from the second axial flow fan 9 penetrates the upper wall of the upper box body 1 and is fixedly connected with a wind box 18. A plurality of blowing holes 16 are arranged on the lower wall of the blowing cover 15. A plurality of air inlet joints 17 are arranged on the upper wall of the blowing cover 15. A plurality of air outlet joints 19 are arranged on the side wall of the wind box 18. The plurality of air outlet joints 19 are respectively connected to a group of air inlet joints 17 through a hose;

[0044] The first axial flow fan 7 sucks the residual cold air in the upper box 1 into the lower box 5, and after being cooled by the cold storage block 14, the second axial flow fan 9 re-transport the cold air to the blowing cover 15 through the air supply pipe 10, forming a closed loop circulation, and the repeated utilization rate of the cold air is greatly improved;

[0045] In order to eliminate the difference in cold air injection speed and improve the uniformity of the medicine box, the internal cavity of the blowing cover 15 is provided with a plurality of uniform air nets 20, and the mesh of the plurality of uniform air nets 20 gradually decreases from the air inlet joint 17 to the blowing hole 16;

[0046] After the cold air enters the blowing cover 15 through the air inlet joint 17, it successively passes through the uniform air nets 20 with gradually increasing mesh density, and the airflow speed is layered and balanced, and the speed difference of the air blown out from the blowing hole 16 is ≤0.5m / s, and the uniformity of the surface temperature of the medicine box is improved by more than 50%;

[0047] In order to block the heat exchange between the inside and outside of the box and prevent the condensation of external water vapor, the inner side wall of the lower box 5 and the inner side wall of the upper box 1 are fixedly connected with the heat insulation layer 13, and the heat insulation layer 13 is aerogel, and the heat insulation layer 13 covers 80%-95% of the surface area of the inner side wall of the lower box 5 and the inner side wall of the upper box 1;

[0048] The thermal conductivity of the aerogel heat insulation layer 13 is ≤0.02W / (m·K), which can greatly reduce the influence of the external environment on the internal temperature of the box, and can effectively inhibit the surface condensation of the box.

[0049] Working principle: the medicine is transported by the conveying device 3, when the temperature sensor 2 detects that the temperature in the lower box 5 is higher than the set threshold, the refrigeration device transports cold air into the box through the cold air supplement pipe 6, at the same time, the cold storage block 14 absorbs and stores the cold energy, the cold air is supplemented on demand and the energy is buffered, the refrigeration device start-stop frequency is reduced, and the service life of the equipment is prolonged; the temperature sensor 2 monitors the temperature inside the box in real time, when the temperature is abnormal, the system automatically adjusts the rotating speed of the first axial flow fan 7 and the second axial flow fan 9 or starts the refrigeration device to supplement cold air, so that the standard deviation of the temperature distribution in the box is small, and the stability requirement of the heat-sensitive medicine is met; the cold storage block 14 absorbs and stores the cold energy when the refrigeration device is normally operated, when the equipment is powered off or fails, the phase change material releases the cold energy, combined with the heat preservation effect of the heat insulation layer 13, the temperature rise in the box is less than or equal to 2 DEG C within 10 minutes, and the tolerance requirement of "cold chain interruption is less than or equal to 5 minutes" in the GMP specification is met; the door curtain 4 is made of flexible silica gel material, and after natural falling, the door curtain 4 forms elastic sealing with the surface of the conveying device 3, the cold air leakage amount is reduced by about 75%, and at the same time, the medicine box can smoothly pass through, and mechanical jamming is avoided; according to the stacking height (5-30 cm) of the medicine box, the air cylinder 12 drives the air blowing cover 15 to ascend and descend along the guide rod 11, so that the distance between the air blowing hole 16 and the surface of the medicine box is kept within the range of 50-150 mm, and the airflow is balanced step by step in cooperation with the multi-layer air uniforming net 20, so that the temperature difference on the surface of the medicine box is greatly compressed; the first axial flow fan 7 sucks the residual cold air in the upper box 1 into the lower box 5, after being cooled by the cold storage block 14, the second axial flow fan 9 re-transport the cold air to the air blowing cover 15 through the air supply pipe 10, a closed loop circulation is formed, and the cold air reuse rate is greatly improved; after the cold air enters the air blowing cover 15 through the air inlet joint 17, the airflow speed is layered and balanced by passing through the air uniforming nets 20 with gradually increasing mesh density in sequence, and the wind speed difference of the air blown out from the air blowing hole 16 is less than or equal to 0.5 m / s, and the uniformity of the surface temperature of the medicine box is improved by more than 50%; the thermal conductivity of the aerogel heat insulation layer 13 is less than or equal to 0.02 W / (m K), the influence of the external environment of the box on the internal temperature is greatly reduced, and the surface dew condensation of the box can be effectively inhibited.

[0050] Finally, it should be pointed out that: the above only preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or some technical features are replaced, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A drug delivery arrangement, characterized by: The application relates to a refrigeration device, which comprises an upper box (1), a lower box (5) and a conveying device (3), wherein the lower wall of the upper box (1) is fixedly connected with the upper wall of the lower box (5), a plurality of groups of cold storage blocks (14) are arranged in the lower box (5), first axial flow fans (7) are arranged on the left and right side walls of the lower box (5) close to the front wall, two groups of the first axial flow fans (7) are respectively connected with the lower wall of the upper box (1) through a group of air suction pipes (8), a second axial flow fan (9) is arranged on the right wall of the lower box (5) close to the rear wall, the second axial flow fan (9) is connected with the upper wall of the upper box (1) through an air supply pipe (10), one end of the air supply pipe (10) away from the second axial flow fan (9) penetrates through the upper wall of the upper box (1) and is fixedly connected with a wind box (18), a blowing cover (15) is arranged in the upper box (1) through an air cylinder (12), a plurality of groups of blowing holes (16) are arranged on the lower wall of the blowing cover (15), a plurality of groups of air inlet joints (17) are arranged on the upper wall of the blowing cover (15), a plurality of groups of air outlet joints (19) are arranged on the side wall of the wind box (18), a plurality of groups of the air outlet joints (19) are respectively connected with a group of the air inlet joints (17) through hoses, a plurality of layers of uniform air distribution nets (20) are arranged in the cavity of the blowing cover (15), and heat insulation layers (13) are fixedly connected to the inner side walls of the lower box (5) and the upper box (1).

2. A drug delivery arrangement according to claim 1, wherein: A cold air supplement pipe (6) is arranged on the front wall of the lower box (5) close to the lower wall, and the lower box (5) is connected with the refrigeration device through the cold air supplement pipe (6).

3. A drug delivery arrangement according to claim 2, wherein: The cold storage block (14) is composed of an aluminum alloy container, a honeycomb grid and a paraffin-based phase change material, the filling rate of the honeycomb grid in the aluminum alloy container is 85%-90%, and the paraffin-based phase change material is filled in the honeycomb grid.

4. A drug delivery arrangement according to claim 3, wherein: The air cylinder (12) is fixedly connected to the upper wall of the upper box (1), the extending shaft of the air cylinder (12) penetrates through the upper wall of the upper box (1) and extends into the upper box (1), the blowing cover (15) is fixedly connected to the extending shaft end of the air cylinder (12), and the blowing cover (15) is slidably connected to the upper wall of the upper box (1) through two groups of guide rods (11).

5. A drug delivery arrangement according to claim 4, wherein: The mesh of the multiple layers of the uniform air distribution net (20) gradually decreases from the air inlet joint (17) to the blowing hole (16).

6. A drug delivery arrangement according to claim 5, wherein: At least one side of the front wall, the rear wall, the left wall and the right wall of the upper box (1) is provided with a temperature sensor (2) corresponding to the side wall of the lower box (5).

7. A drug delivery arrangement according to claim 6, wherein: The heat insulation layer (13) is aerogel, and the heat insulation layer (13) covers 80%-95% of the surface area of the inner side walls of the lower box (5) and the upper box (1).

8. A drug delivery arrangement according to claim 7, wherein: The upper box (1) is provided with openings on the front and rear sides, the conveying device (3) is arranged in the two groups of openings, and the inner side upper walls of the two groups of openings are provided with door curtains (4).

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