Double-screw ice congealing dryer

Abstract

This invention provides a double-helix condensation freeze dryer, belonging to the field of freeze dryer technology. It solves the problem of uneven distribution of cold air to each freeze-drying bottle in existing freeze dryers. The double-helix condensation freeze dryer includes a freeze dryer body, within which is a freeze-drying chamber for storing freeze-drying bottles. A partition plate in the middle of the freeze-drying chamber divides the interior into upper and lower freeze-drying compartments. Each freeze-drying compartment contains multiple freeze-drying bottles for placing samples. The two freeze-drying compartments form two independent cold air channels. The freeze dryer body also includes a spiral tube assembly for transferring cold liquid. The spiral tube assembly consists of two sets of sub-spiral tubes with a "DNA double helix structure," located on the side of the freeze-drying compartment.

Description

Technical Field

[0001] A freeze dryer, also known as a freeze dryer, is a device used in freeze-drying technology. It is mainly used to directly sublimate and remove water from water-containing substances through a low-temperature, vacuum environment, thereby preserving the original structure, activity, and nutrients of the substance. Background Technology

[0002] For example, in patent number CN202221578398.3, the freeze dryer uses a freeze drying chamber and stores multiple freeze-dried bottles of different samples in the freeze drying chamber. The samples are placed in the freeze drying chamber for monitoring, and the monitoring process is usually achieved by a monitoring probe.

[0003] The device has two problems. First, the cooling effect is achieved by the cold air flowing from one side of the freeze-drying chamber to the other, which cannot guarantee that the cold air is evenly distributed around each freeze-drying bottle. In other words, the cooling effect of each freeze-drying bottle is not the same, and the freeze-drying bottle closer to the cold air inlet will get a higher cooling effect.

[0004] Secondly, due to the limitations of the monitoring probe's location, it is impossible to guarantee a uniform monitoring effect for the detection process of freeze-dried bottles at each location, which needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to address the problem of uneven distribution of cold air to each freeze-drying bottle in existing freeze dryers, and to propose a double-helix ice-condensing freeze dryer.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A double-helix freeze dryer includes a freeze dryer body, a freeze drying chamber for storing freeze drying bottles inside the freeze dryer body, a partition plate in the middle of the freeze drying chamber dividing the freeze drying chamber into upper and lower freeze drying chambers, each containing multiple freeze drying bottles for placing samples, the two freeze drying chambers forming two independent cold air channels, and a spiral tube assembly for transferring cold liquid inside the freeze dryer body, the spiral tube assembly consisting of two sets of sub-spiral tubes with a "DNA double helix structure", the spiral tube assembly being located on the side of the freeze drying chamber.

[0008] In the aforementioned double-spiral freeze dryer, the pitch of the spiral tube assembly gradually decreases from the cold liquid inlet end.

[0009] In the aforementioned double-spiral freeze dryer, the helix radius of the spiral tube assembly gradually increases from the cold liquid inlet end.

[0010] In the aforementioned double-helix freeze dryer, there are four sets of spiral tubes, located on the left and right sides of the two freeze-drying chambers respectively.

[0011] In the aforementioned double-helix freeze dryer, a slide rail is provided at the top of the freeze drying chamber, a slider is slidably mounted on the slide rail, a monitor is provided at the bottom of the slider, and the slider moves back and forth on the slide rail via a drive device.

[0012] Compared with existing technologies, this freeze dryer uses a double-helix structure to extend the path of the cold liquid delivery, making the refrigeration efficiency more uniform and reliable. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the freeze-drying chamber after one side panel has been removed, along with the entire spiral tube assembly.

[0014] Figure 2 This is a schematic diagram of the structure of the freeze-drying chamber after one side panel is removed and the two spiral tube assemblies are connected.

[0015] Figure 3 This is a structural diagram of the freeze-drying box after the two side panels have been removed;

[0016] In the diagram, 1. freeze-drying chamber; 2. partition plate; 3. freeze-drying bottle; 4. spiral tube assembly; 5. slide rail; 6. slider; 7. monitor; 8. drive device; 9. partition block; 10. corrugated connecting piece; 11. support body. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0019] like Figure 1 and Figure 2 As shown, this double-helix freeze dryer includes a freeze dryer body, a freeze drying chamber 1 for storing freeze drying bottles 3 inside the freeze dryer body, a partition plate 2 in the middle inside the freeze drying chamber 1, the partition plate 2 divides the freeze drying chamber 1 into upper and lower freeze drying chambers, the freeze drying chambers contain multiple freeze drying bottles 3 for placing samples, the two freeze drying chambers form two independent cold air channels, the freeze dryer body also has a spiral tube assembly 4 for transferring cold liquid, the spiral tube assembly 4 consists of two sets of sub-spiral tubes with a "DNA double helix structure", the spiral tube assembly 4 is located on the side of the freeze drying chamber.

[0020] By using the spiral design of the spiral tube assembly 4, the path of the cold liquid is increased, ensuring that the cold liquid stays next to each freeze-drying bottle 3 for a longer period of time during the delivery process, resulting in better freeze-drying efficiency. Moreover, because it is a double spiral design, the total amount of cold liquid will be higher, and the cold air transfer between the two sub-spiral tubes will have a complementary effect.

[0021] The pitch of the helix of the spiral tube assembly 4 gradually decreases from the coolant inlet end.

[0022] The smaller the pitch, the tighter the spiral appears. This is because the coolant is in its coldest state when it is first fed into the spiral tube assembly 4. As heat is transferred, the temperature of the coolant gradually rises, and the cooling effect decreases. Therefore, the freeze-drying bottle 3 at the rear end needs to absorb the same amount of cooling energy.

[0023] The helix radius of the spiral tube assembly 4 gradually increases from the coolant inlet end.

[0024] The larger the radius of the spiral, the longer the cold liquid takes to pass through, which means it stays at position 3 of the freeze-drying bottle for a longer period of time. As heat is transferred, the temperature of the cold liquid gradually increases, and the cooling effect decreases. The freeze-drying bottle 3 at the rear end needs to absorb the same amount of cooling energy.

[0025] The spiral tube assembly 4 has four sets, located on the left and right sides of the two freeze-drying chambers respectively.

[0026] like Figure 3 As shown, each freeze-drying chamber is equipped with a slide rail 5 at the top, a slider 6 is slidably mounted on the slide rail 5, a monitor 7 is mounted at the bottom of the slider 6, and the slider 6 moves back and forth on the slide rail 5 through a drive device 8.

[0027] The drive unit 8 drives the slider 6 to move on the slide rail 5. The movement of the slider 6 causes the monitor 7 to move to different positions to align with different freeze-drying bottles 3 below, thereby collecting temperature data for each freeze-drying bottle 3.

[0028] The edge of the partition plate 2 has a notch that connects the two freeze-drying chambers. The two sliders 6 are connected by a U-shaped support body 11 that passes through the notch.

[0029] After the two sliders 6 are fixedly connected together by the bracket body 11, only one drive device 8 is needed to drive the two sliders 6 to move back and forth at the same time. As long as the position of the freeze-drying bottle 3 is aligned vertically, the two sets of monitors 7 will operate synchronously during the collection process, which increases the monitoring efficiency.

[0030] The support body 11 is provided with a partition block 9, which is on the same plane as the partition plate 2. Both ends of the partition block 9 are provided with corrugated connecting pieces 10. The other ends of the two corrugated connecting pieces 10 are respectively fixed to the two edges inside the freeze-drying chamber 1. The corrugated connecting pieces 10 can freely extend and retract, and the corrugated connecting pieces 10 block the gaps to separate the freeze-drying chambers from each other.

[0031] The slider 6 needs to be adjusted to change the monitoring function. The movement of slider 6 causes the support body 11 to move, and the partition block 9 will move along with the support body 11. During the movement of partition block 9, the pleated connecting pieces 10 on both sides will automatically stretch or retract. However, because the pleated connecting pieces 10 have the ability to fold (shaped like a protective cover of an accordion), the pleated connecting pieces 10 will always block the gap, so that the two freeze-drying chambers will not be connected due to the existence of the gap.

[0032] It should be understood that in the claims and description of this utility model, all instances of "comprising..." should be understood as having an open meaning, that is, their meaning is equivalent to "containing at least...", and should not be understood as having a closed meaning, that is, their meaning should not be understood as "containing only...".

[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A double-screw ice confectionery freezer, characterized in that: The device includes a freeze dryer body, which contains a freeze drying chamber for storing freeze drying bottles. Inside the freeze drying chamber, there is a partition plate in the middle, which divides the freeze drying chamber into upper and lower freeze drying chambers. Each freeze drying chamber contains multiple freeze drying bottles for placing samples. The two freeze drying chambers form two independent cold air channels. The freeze dryer body also contains a spiral tube assembly for transferring cold liquid. The spiral tube assembly consists of two sets of sub-spiral tubes with a "DNA double helix structure" and is located on the side of the freeze drying chamber.

2. A double-screw ice confectionery pasteurizer according to claim 1, characterized in that: The helix pitch of the spiral tube assembly gradually decreases from the coolant inlet end.

3. A double-screw ice confectionery pasteurizer according to claim 1, characterized in that: The radius of the spiral tube assembly gradually increases from the cold liquid inlet end.

4. The double-screw ice congealing freeze-drying machine according to any one of claims 1 to 3, characterized in that: The spiral tube assembly has four sets, located on the left and right sides of the two freeze-drying chambers respectively.

5. The double-screw ice congealing and freeze-drying machine according to any one of claims 1 to 3, characterized in that: The freeze-drying chamber is equipped with a slide rail at the top, and a slider slides on the slide rail. A monitor is installed at the bottom of the slider, and the slider moves back and forth on the slide rail through a drive device.

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