Small freeze-drying testing machine

Abstract

The utility model relates to the technical field of freeze-drying, in particular to a small freeze-drying testing machine which comprises a freeze-drying machine body, a sealing bin door is hinged to the front side of the freeze-drying machine body, a vacuum suction machine is fixedly connected to the rear side of the freeze-drying machine body, and a heating mechanism is arranged in the freeze-drying machine body. The heating mechanism comprises a first partition plate, a second partition plate, a third partition plate, a fourth partition plate, a heating box and a circulating pump; a plurality of heating oil pipes are arranged in the first partition plate, the second partition plate, the third partition plate and the fourth partition plate; the multiple heating oil pipes are arranged in the partition plate, when silicone oil is injected, residual silicone oil in the heating oil pipes can be rapidly discharged outwards, silicone oil at different temperatures is prevented from being mixed, then the oil temperature in the partition plate is effectively guaranteed, the oil temperature adjusting speed is increased, the silicone oil is always in a circulating state through the circulating pump, and the service life of the silicone oil is prolonged. The silicone oil is in a constant-temperature state, and the product preparation efficiency and quality are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of freeze drying, in particular to a small freeze drying test machine. Background Art

[0002] Vacuum freeze-drying technology is becoming more and more popular due to its unparalleled advantages over other drying methods. In addition to being widely used in the fields of medicine, biological products, food, blood products, and active substances, its application scale and field are still expanding.

[0003] Freeze dryers mostly use silicone oil as a heat conduction medium, which is beneficial for saving energy, speeding up production, and is easy to clean. During use, the silicone oil is introduced into the interior of the partition, and then the material on the surface of the partition is freeze-dried. However, the interior of the partition of the existing freeze dryer is a whole chamber. When the silicone oil is introduced into the interior of the partition, the residual silicone oil in the partition cannot be completely discharged in time, and the injected silicone oil will be mixed with the residual silicone oil in the partition. The partition cannot be adjusted to the specified temperature in time, so that the temperature of the partition deviates from the set temperature, and the temperature control accuracy is low.

[0004] Therefore, it is necessary to invent a small freeze-drying test machine to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a small freeze-drying test machine to solve the problem that the interior of the existing freeze-drying machine partition is a whole chamber, and when silicone oil is introduced into the partition, the silicone oil remaining in the partition cannot be completely discharged in time, so that the injected silicone oil and the silicone oil remaining in the partition are mixed, and the partition cannot be adjusted to the specified temperature in time, so that the temperature of the partition deviates from the set temperature and the temperature control accuracy is low.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a small freeze-drying testing machine, comprising a freeze-drying machine body, a sealed compartment door hinged on the front side of the freeze-drying machine body, a vacuum suction machine fixedly connected to the rear side of the freeze-drying machine body, a heating mechanism is arranged inside the freeze-drying machine body, the heating mechanism comprises a first partition, a second partition, a third partition, a fourth partition, a heating box, and a circulating pump, a plurality of heating oil pipes are opened inside the first partition, the second partition, the third partition and the fourth partition, the three heating oil pipes form a group of heating chambers, and oil guide holes are opened at the left and right ends of each group of heating chambers.

[0007] By adopting the above technical scheme, the silicone oil is introduced into the interior of the heating oil pipe from the oil guide hole at the right end. Since multiple groups of heating oil pipes are provided, the residual silicone oil in the heating oil pipe can be quickly discharged outward when the silicone oil of the specified temperature is introduced, thereby avoiding the mixing of silicone oils of different temperatures, thereby effectively ensuring the oil temperature inside the partition, improving the speed of oil temperature regulation, and keeping the silicone oil in a circulating state at all times through the circulating pump to ensure that the silicone oil is in a constant temperature state, effectively improving the product preparation efficiency and preparation quality.

[0008] Optionally, the circulating pump is fixedly installed on the right side of the heating box, and a plurality of oil inlet pipes are fixedly connected to the rear side of the circulating pump, and a diversion pipe is fixedly connected to the end of the oil inlet pipe away from the circulating pump, and a plurality of oil delivery pipes are fixedly connected to the side of the diversion pipe, and the oil delivery pipe is fixedly connected to the right oil guide hole.

[0009] By adopting the above technical solution, the circulating pump transports the silicone oil to the inside of the diversion pipe through the oil inlet pipe, the diversion pipe evenly diverts the silicone oil to the inside of multiple groups of oil pipelines, and then the silicone oil enters the inside of the heating oil pipe through the oil guide hole.

[0010] Optionally, a plurality of oil outlet pipes are fixedly connected to the left side of the heating box, a plurality of oil collecting pipes are fixedly connected to the end of the oil outlet pipes away from the heating box, a plurality of oil drain pipes are fixedly connected to the side of the oil collecting pipes, and the oil drain pipes are fixedly connected to the left oil guide hole.

[0011] By adopting the above technical solution, when the circulating pump injects silicone oil from the right end, the residual silicone oil inside the heating pipe will be discharged through the oil guide hole at the left end and collected in the oil collecting pipe, and then the silicone oil will be transported to the interior of the heating box through the oil outlet pipe for heating treatment.

[0012] Optionally, two groups of support rods are fixedly connected between the front and rear inner walls of the freeze dryer body, two groups of positioning rods are fixedly connected to the upper surfaces of the two groups of support rods, and a hydraulic cylinder is fixedly installed on the inner top wall of the freeze dryer body, and the piston rod in the hydraulic cylinder is fixedly connected to the upper surface of the first partition.

[0013] By adopting the above technical solution, the hydraulic cylinder is used to adjust the distance between the partitions.

[0014] Optionally, the left and right side surfaces of the first partition are fixedly connected with two groups of first connecting blocks, the left and right side surfaces of the second partition are fixedly connected with two groups of second connecting blocks, the left and right side surfaces of the third partition are fixedly connected with two groups of third connecting blocks, and the left and right side surfaces of the fourth partition are fixedly connected with two groups of fourth connecting blocks.

[0015] Optionally, the first connecting block, the second connecting block, the third connecting block and the fourth connecting block are all slidably connected to the positioning rod.

[0016] By adopting the above technical solution, the first partition plate, the second partition plate, the third partition plate and the fourth partition plate slide up and down between the four groups of positioning rods through the first connecting block, the second connecting block, the third connecting block and the fourth connecting block.

[0017] Optionally, a first limiting rod is arranged between the first connecting block and the second connecting block, a first sliding groove is opened on the surface of the first limiting rod, a first positioning block is fixedly connected to the side of the first connecting block, and two groups of second positioning blocks are fixedly connected to the side of the second connecting block, and the first positioning block and the front second positioning block both pass through the first sliding groove and are slidably connected to the first limiting rod.

[0018] By adopting the above technical solution, the first limiting rod limits the position between the first partition plate and the second partition plate.

[0019] Optionally, a second limiting rod is arranged between the second connecting block and the third connecting block, a second sliding groove is opened on the surface of the second limiting rod, a third positioning block is fixedly connected to the side of the third connecting block, and the third positioning block and the rear second positioning block both pass through the second sliding groove and are slidably connected to the second limiting rod.

[0020] By adopting the above technical solution, the second limiting rod limits the distance between the second partition plate and the third partition plate.

[0021] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0022] The utility model sets a plurality of groups of heating oil pipes, so that when the silicone oil of the specified temperature is introduced, the residual silicone oil in the heating oil pipes can be quickly discharged outwards, so as to avoid the mixing of silicone oils of different temperatures, thereby effectively ensuring the oil temperature inside the partition, improving the speed of oil temperature regulation, and keeping the silicone oil in a circulating state at all times through a circulating pump, ensuring that the silicone oil is in a constant temperature state, effectively improving the product preparation efficiency and preparation quality, and solving the problem that the interior of the partition of the existing freeze dryer is a whole chamber, and when the silicone oil is introduced into the partition, the residual silicone oil in the partition cannot be discharged in time, which will cause the injected silicone oil to mix with the residual silicone oil in the partition, and the partition cannot be adjusted to the specified temperature in time, so that the temperature of the partition deviates from the set temperature and the temperature control accuracy is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0025] Figure 3This is a schematic diagram of the oil inlet pipeline structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the internal structure of the partition of the utility model;

[0027] Figure 5 For this utility model Figure 4 A magnified schematic diagram of the structure at A

[0028] Figure 6 This is a schematic diagram of the positioning rod structure of the utility model.

[0029] Description of reference numerals:

[0030] 1. Freeze dryer body; 11. Sealing compartment door; 12. Vacuum suction machine; 13. Hydraulic cylinder; 2. Support rod; 21. Positioning rod; 3. First partition; 31. First connecting block; 32. First positioning block; 33. First limiting rod; 4. Second partition; 41. Second connecting block; 42. Second positioning block; 43. Second limiting rod; 5. Third partition; 51. Third connecting block; 52. Third positioning block; 6. Fourth partition; 61. Fourth connecting block; 7. Heating box; 71. Circulation pump; 72. Oil inlet pipeline; 73. Diversion pipeline; 74. Oil delivery pipeline; 75. Oil outlet pipeline; 76. Oil collecting pipeline; 77. Oil discharge pipeline; 78. Heating oil pipe; 79. Oil guide hole. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] The utility model provides Figures 1 to 5A small freeze-drying test machine shown in the figure comprises a freeze-drying machine body 1, a sealed compartment door 11 is hingedly connected to the front side of the freeze-drying machine body 1, a vacuum suction machine 12 is fixedly connected to the rear side of the freeze-drying machine body 1, a heating mechanism is arranged inside the freeze-drying machine body 1, the heating mechanism comprises a first partition 3, a second partition 4, a third partition 5, a fourth partition 6, a heating box 7, and a circulating pump 71, a plurality of heating oil pipes 78 are opened inside the first partition 3, the second partition 4, the third partition 5 and the fourth partition 6, three heating oil pipes 78 form a group of heating chambers, and oil guide holes 79 are opened at the left and right ends of each group of heating chambers, and the circulating pump 7 1 is fixedly installed on the right side of the heating box 7, and a plurality of groups of oil inlet pipes 72 are fixedly connected to the rear side of the circulating pump 71, and a diversion pipe 73 is fixedly connected to the end of the oil inlet pipe 72 away from the circulating pump 71, and a plurality of groups of oil delivery pipes 74 are fixedly connected to the side of the diversion pipe 73, and the oil delivery pipe 74 is fixedly connected to the right oil guide hole 79, and a plurality of groups of oil outlet pipes 75 are fixedly connected to the left side of the heating box 7, and a plurality of groups of oil collecting pipes 76 are fixedly connected to the end of the oil outlet pipe 75 away from the heating box 7, and a plurality of groups of oil discharge pipes 77 are fixedly connected to the side of the oil collecting pipe 76, and the oil discharge pipe 77 is fixedly connected to the left oil guide hole 79.

[0033] Among them, during use, the material is laid on the surfaces of the second partition 4, the third partition 5 and the fourth partition 6, and then the interior of the freeze dryer body 1 is sucked into a vacuum state by the vacuum suction machine 12, and at the same time the heating box 7 heats the silicone oil inside it and adjusts the silicone oil to a specified temperature, and then the circulating pump 71 transports the heated silicone oil outward, and transports the silicone oil to the inside of the diversion pipe 73 through multiple groups of oil inlet pipes 72, and then injects it into the inside of multiple groups of heating oil pipes 78 through the oil delivery pipe 74 and the right oil guide hole 79. At the same time, the residual silicone oil in the heating oil pipe 78 will be quickly discharged to the left to avoid mixing of silicone oils of different temperatures, improve the accuracy of the oil temperature inside the heating oil pipe 78, and effectively ensure the temperature inside the freeze dryer body 1.

[0034] In addition, the silicone oil is transported to the interior of the oil collecting pipe 76 through the oil guide hole 79 at the left end, and returned to the interior of the heating box 7 through multiple sets of oil outlet pipes 75 to be reheated. The silicone oil is circulated in the heating oil pipe 78 by the circulating pump 71, so that the oil temperature inside the heating oil pipe 78 is kept at a constant temperature, and the internal oil temperature can be adjusted in time, thereby effectively improving product preparation efficiency and product quality.

[0035] See also Figure 2 and Figure 6Two groups of support rods 2 are fixedly connected between the inner walls on the front and rear sides of the freeze dryer body 1, and two groups of positioning rods 21 are fixedly connected to the upper surfaces of the two groups of support rods 2. A hydraulic cylinder 13 is fixedly installed on the inner top wall of the freeze dryer body 1. The piston rod in the hydraulic cylinder 13 is fixedly connected to the upper surface of the first partition 3. The left and right surfaces of the first partition 3 are fixedly connected with two groups of first connecting blocks 31, the left and right surfaces of the second partition 4 are fixedly connected with two groups of second connecting blocks 41, the left and right surfaces of the third partition 5 are fixedly connected with two groups of third connecting blocks 51, and the left and right surfaces of the fourth partition 6 are fixedly connected with two groups of fourth connecting blocks 61. The first connecting block 31, the second connecting block 41, the third connecting block 51 and the fourth connecting block 61 are all fixedly connected to the positioning The rod 21 is slidably connected, and a first limiting rod 33 is arranged between the first connecting block 31 and the second connecting block 41. A first sliding groove is provided on the surface of the first limiting rod 33. The side of the first connecting block 31 is fixedly connected with the first positioning block 32. The side of the second connecting block 41 is fixedly connected with two groups of second positioning blocks 42. The first positioning block 32 and the front second positioning block 42 both penetrate the first sliding groove and are slidably connected to the first limiting rod 33. A second limiting rod 43 is arranged between the second connecting block 41 and the third connecting block 51. A second sliding groove is provided on the surface of the second limiting rod 43. The side of the third connecting block 51 is fixedly connected with the third positioning block 52. The third positioning block 52 and the rear second positioning block 42 both penetrate the second sliding groove and are slidably connected to the second limiting rod 43.

[0036] At the same time, during the freeze-drying process, the hydraulic cylinder 13 pushes the first partition 3 downward. At this time, under the action of gravity, the second partition 4 and the third partition 5 slide downward. When the lower surface of the third partition 5 contacts the material on the upper side of the fourth partition 6, the third partition 5 stops sliding, and the first partition 3 continues to drive the second partition 4 to slide downward. At this time, the second limiting rod 43 slides downward on the surface of the third positioning block 52. When the lower surface of the second partition 4 contacts the material on the upper side of the third partition 5, the second partition 4 stops sliding downward, and the first partition 3 continues to slide downward. At this time, the first limiting rod 33 slides downward on the surface of the front second positioning block 42 until the lower surface of the first partition 3 contacts the material on the upper side of the second partition 4, and the distance between the partitions is adjusted. The upper and lower groups of partitions press the material inside to improve the material preparation efficiency.

[0037] The working principle of the utility model is as follows: by setting a plurality of heating oil pipes 78 inside the partition, when the silicone oil of the specified temperature is introduced, the residual silicone oil inside the heating oil pipe 78 can be quickly discharged to the outside to avoid the mixing of silicone oils of different temperatures, thereby effectively ensuring the oil temperature inside the partition, improving the speed of oil temperature regulation, and keeping the silicone oil in a circulating state at all times through the circulation pump 71 to ensure that the silicone oil is in a constant temperature state, thereby effectively improving the product preparation efficiency and preparation quality.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A small freeze-drying test machine, comprising a freeze-drying machine body (1), characterized in that: A sealed compartment door (11) is hingedly connected to the front side of the freeze dryer body (1), and a vacuum suction machine (12) is fixedly connected to the rear side of the freeze dryer body (1). A heating mechanism is arranged inside the freeze dryer body (1), and the heating mechanism comprises a first partition (3), a second partition (4), a third partition (5), a fourth partition (6), a heating box (7), and a circulating pump (71). A plurality of heating oil pipes (78) are provided inside the first partition (3), the second partition (4), the third partition (5), and the fourth partition (6). Three of the heating oil pipes (78) form a group of heating chambers, and each group of heating chambers is provided with oil guide holes (79) at both left and right ends.

2. A small freeze-drying test machine according to claim 1, characterized in that: The circulation pump (71) is fixedly mounted on the right side of the heating box (7); a plurality of groups of oil inlet pipes (72) are fixedly connected to the rear side of the circulation pump (71); a diversion pipe (73) is fixedly connected to one end of the oil inlet pipe (72) away from the circulation pump (71); a plurality of groups of oil delivery pipes (74) are fixedly connected to the side of the diversion pipe (73); and the oil delivery pipes (74) are fixedly connected to the right oil guide hole (79).

3. A small freeze-drying test machine according to claim 2, characterized in that: The left side of the heating box (7) is fixedly connected to a plurality of groups of oil outlet pipes (75); one end of the oil outlet pipe (75) away from the heating box (7) is fixedly connected to a plurality of groups of oil collecting pipes (76); the side of the oil collecting pipe (76) is fixedly connected to a plurality of groups of oil drain pipes (77); the oil drain pipes (77) are fixedly connected to the left oil guide hole (79).

4. A small freeze-drying test machine according to claim 1, characterized in that: Two groups of support rods (2) are fixedly connected between the front and rear inner walls of the freeze dryer body (1), and two groups of positioning rods (21) are fixedly connected to the upper surfaces of the two groups of support rods (2). A hydraulic cylinder (13) is fixedly installed on the inner top wall of the freeze dryer body (1), and a piston rod in the hydraulic cylinder (13) is fixedly connected to the upper surface of the first partition plate (3).

5. A small freeze-drying test machine according to claim 4, characterized in that: The left and right side surfaces of the first partition plate (3) are both fixedly connected with two groups of first connection blocks (31), the left and right side surfaces of the second partition plate (4) are both fixedly connected with two groups of second connection blocks (41), the left and right side surfaces of the third partition plate (5) are both fixedly connected with two groups of third connection blocks (51), and the left and right side surfaces of the fourth partition plate (6) are both fixedly connected with two groups of fourth connection blocks (61).

6. A small freeze-drying test machine according to claim 5, characterized in that: The first connecting block (31), the second connecting block (41), the third connecting block (51) and the fourth connecting block (61) are all slidably connected to the positioning rod (21).

7. A small freeze-drying test machine according to claim 6, characterized in that: A first limiting rod (33) is arranged between the first connecting block (31) and the second connecting block (41); a first sliding groove is provided on the surface of the first limiting rod (33); a first positioning block (32) is fixedly connected to the side surface of the first connecting block (31); two groups of second positioning blocks (42) are fixedly connected to the side surface of the second connecting block (41); the first positioning block (32) and the front second positioning block (42) both pass through the first sliding groove and are slidably connected to the first limiting rod (33).

8. A small freeze-drying test machine according to claim 7, characterized in that: A second limiting rod (43) is provided between the second connecting block (41) and the third connecting block (51); a second sliding groove is provided on the surface of the second limiting rod (43); a third positioning block (52) is fixedly connected to the side surface of the third connecting block (51); the third positioning block (52) and the rear second positioning block (42) both penetrate the second sliding groove and are slidably connected to the second limiting rod (43).

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