Multi-bin low-temperature negative-pressure baking oven for dendrobium officinale

Abstract

The invention discloses a multi-bin low-temperature negative-pressure baking oven for dendrobium officinale, belongs to the technical field of dendrobium officinale processing, and aims to solve the problems that the interior of the dendrobium is cured and the exterior surface of the dendrobium is discolored due to heating in a high-temperature baking mode, the nutritional ingredients of food materials are possibly lost, and the baking effect is poor when the existing dendrobium officinale baking device processes the dendrobium officinale in the high-temperature baking mode. The equipment adopts the same bin body to perform multi-layer baking on the dendrobium nobile, and the baking moisture of the multi-layer dendrobium nobile has the problem of mutual influence during evaporation; according to the invention, through the matching arrangement of the four groups of baking heating mechanisms and the multi-bin separation mechanism in the dendrobe baking box body, the baking bin arranged in the external baking box is separated into four vertical parallel bin positions by the four groups of baking heating mechanisms, and mutual influence of water vapor in the four bin positions is prevented; and through the matching arrangement of the dendrobe baking box body, the multi-bin separation mechanism and the negative pressure condensation mechanism, the negative pressure environment in the baking oven is kept, low-temperature baking is realized, and the efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of dendrobium officinale processing, in particular to a multi-bin low-temperature negative pressure baking box for dendrobium officinale. Background Art

[0002] Dendrobium candidum is a precious Chinese medicinal material, and baking is one of its commonly used processing methods. Dendrobium candidum can be processed by sun baking, oven baking, steam baking and traditional furnace baking. A Dendrobium baking machine with publication number CN113551501B comprises a machine body, a baking chamber is provided on the machine body, a door movably connected to the machine body is provided on the side wall of the baking chamber, a rotating frame is movably connected between the upper and lower ends of the baking chamber, a plurality of serving plates are placed on the rotating frame, the serving plates are limitedly connected to the rotating frame, the middle part of the lower end of the rotating frame is transmission-connected to a motor, the motor is embedded and installed at the lower end of the machine body, the symmetrical two sides of the baking chamber are fixedly connected to a panel, a plurality of strip holes are provided on the panel, the baking chamber is located on the inner side of the panel and is fixedly connected to a heating plate, The four corners of the lower end face of the machine body are fixedly connected to the legs, and the legs are equipped with walking wheels with a locking mechanism. This invention drives the rotating frame through a motor to rotate the containing plate in the baking chamber, and cooperates with the strip holes on the enclosure for heat transfer to make the dendrobium heated evenly, with a good baking effect, thereby improving the quality of the dendrobium. However, this device uses a high-temperature baking method to process the dendrobium. Heating under this method can easily ripen the inside of the dendrobium and discolor the outer surface, and the nutritional components of the food may be lost. As a precious Chinese medicinal material, dendrobium needs to maintain its nutritional components and medicinal value as much as possible. In addition, this equipment uses the same bin body to perform multi-layer baking on the dendrobium. The baking moisture of the multiple layers of dendrobium affects each other when evaporating, which reduces the baking efficiency.

[0003] To solve the above problems, a multi-position low-temperature negative pressure baking box for Dendrobium officinale is proposed. Summary of the invention

[0004] The object of the present invention is to provide a multi-bin low-temperature negative pressure baking box for Dendrobium officinale, which solves the problem that the existing Dendrobium officinale baking device in the background technology uses a high-temperature baking method to process Dendrobium. The heating in this method is likely to cause the inside of the Dendrobium to mature and the external surface to change color, and the nutritional components of the food may be lost. Dendrobium is a precious Chinese medicinal material, and its nutritional components and medicinal value need to be maintained as much as possible. In addition, this equipment uses the same bin body to perform multi-layer baking on Dendrobium. The baking moisture of the multiple layers of Dendrobium affects each other when evaporating, thereby reducing the baking efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-bin low-temperature negative pressure baking box for Dendrobium officinale, comprising a Dendrobium baking box body, a multi-bin partition mechanism is fixedly arranged on one side of the Dendrobium baking box body, a negative pressure condensation mechanism is fixedly arranged on one side of the multi-bin partition mechanism, the Dendrobium baking box body comprises an external baking box, a baking box door rotatably arranged on one side of the external baking box, a baking heating mechanism fixedly arranged inside the external baking box, a baking box is provided in the external baking box, four groups of baking heating mechanisms are arranged, and the baking heating mechanism comprises a bottom pad fixedly arranged in the baking box, a bottom pad fixedly arranged on the bottom pad The heating protection frame at the upper end of the plate is inserted into the partition chamber heating mechanism arranged in the heating protection frame, and is connected to the U-shaped heat transfer plate arranged at the upper end of the heating protection frame. The multi-chamber partition mechanism includes a partition box, a steam inlet is opened on one side of the partition box, and four groups of steam inlets are opened. One side of the three groups of steam inlets at the lower end are respectively connected to the first L-shaped steam channel, the second L-shaped steam channel and the third L-shaped steam channel. The other side of the partition box is connected to a steam partition baffle, and a steam conveying mechanism is penetrated in the steam partition baffle. The negative pressure condensation mechanism includes a condensation box arranged on one side of the partition box, and a condenser connected to one side of the condensation box.

[0006] Furthermore, the external baking box also includes a heat-insulating base arranged at the lower end of the baking chamber, and a rear circuit heat-insulating plate is fixedly arranged inside the baking chamber.

[0007] Furthermore, a side inclined block is fixedly provided at the front end of the bottom pad, and the partition chamber heating mechanism includes a heating connection block connected to one side of the rear circuit insulation board, a heating rod fixedly connected to the heating connection block, and a plurality of groups of heating rods are arranged side by side.

[0008] Furthermore, the heating protection frame is provided with heat transfer openings, and a plurality of groups of heat transfer openings are arranged side by side. Side blocks are provided on the front and rear sides of the U-shaped heat transfer plate.

[0009] Furthermore, a transmission opening is opened at the upper end of the partition box, and the steam delivery mechanism includes a closed frame fixedly arranged in the transmission opening.

[0010] Furthermore, the steam conveying mechanism also includes a driving motor fixedly arranged on one side of the closed frame, a first pulley arranged at the output end of the driving motor, a transmission belt movably arranged on the outside of the first pulley, a second pulley arranged on one side of the contact transmission belt, a fan blade fixedly connected to the second pulley, and the second pulley is arranged through the steam separation baffle.

[0011] Furthermore, a through support frame is fixedly provided at the center of the steam separation baffle.

[0012] Furthermore, the negative pressure condensation mechanism also includes an oblique collection box fixedly arranged at the lower end of the condensation box, a negative pressure condensate output pipe arranged at the lower end of the oblique collection box is connected to the negative pressure condensate output pipe, and a valve is connected to the negative pressure condensate output pipe.

[0013] Furthermore, a pipe through-hole is provided on the condensing box, and the condenser includes a condensing pipe inserted into the pipe through-hole.

[0014] Furthermore, the condenser also includes a condensation fixing frame fixedly arranged inside the condensation box, the condensation tube is arranged through the condensation fixing frame, the condensation fixing frame is arranged through heat sinks, and the heat sinks are arranged in several groups side by side.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides a multi-bin low-temperature negative pressure baking box for Dendrobium officinale. Through the matching arrangement of four groups of baking heating mechanisms and a multi-bin partitioning mechanism in the Dendrobium officinale baking box body, the four groups of baking heating mechanisms divide the baking bin opened in the external baking box into four vertically parallel bins. The baking box door can be rotated to cooperate with the external baking box to achieve the closure of the baking bin. The bottom pad in the baking heating mechanism isolates the adjacent bins. The four groups of baking heating mechanisms correspond to the four bins. The partitioning bin heating mechanism achieves low-temperature baking. The four groups of steam inlets in the multi-bin partitioning mechanism correspond to the water vapor in the four bins. The arrangement of the first L-shaped steam channel, the second L-shaped steam channel and the third L-shaped steam channel prevents the water vapor in the four bins from affecting each other. This solves the problem that the existing Dendrobium officinale baking device uses the same bin body to perform multi-layer baking on Dendrobium, and the baking moisture of the multi-layer Dendrobium affects each other when evaporating, thereby reducing the baking efficiency.

[0017] 2. The present invention provides a multi-bin low-temperature negative pressure baking box for Dendrobium officinale. Through the arrangement of the Dendrobium baking box body, the multi-bin partition mechanism and the negative pressure condensation mechanism, the rotation of the steam conveying mechanism can convey the steam from the Dendrobium baking box body to the negative pressure condensation mechanism. The condensation box fixes the condenser. When the water vapor conveyed in the Dendrobium baking box body meets the condenser, the temperature difference will cause the temperature of the water vapor to drop rapidly. The cooling medium in the condenser will absorb the heat of the water vapor and increase its own temperature. As the temperature drops, the heat in the water vapor will be transferred to the condenser and taken away by the cooling medium. Since the pressure inside the Dendrobium officinale baking box is relatively low, the cooling medium in the condenser will undergo a phase change during the cooling process of the water vapor, thereby condensing the water vapor into liquid water. The liquid water can then be discharged to maintain a negative pressure environment in the oven, so that the device can achieve low-temperature baking and improve efficiency. This solves the problem that the existing Dendrobium officinale baking device uses high-temperature baking to process Dendrobium. Heating under this method can easily cause the inside of the Dendrobium to mature and the outer surface to change color, and the nutritional components of the food may be lost. As a precious Chinese medicinal material, Dendrobium officinale needs to maintain its nutritional components and medicinal value as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall opening structure of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the Dendrobium baking box of the present invention;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of the Dendrobium baking box of the present invention;

[0022] Figure 5 Schematic diagram of the split structure of the multi-chamber partition mechanism and the negative pressure condensation mechanism of the present invention Figure 1 ;

[0023] Figure 6 The structure diagram of the multi-chamber partition mechanism and negative pressure condensation mechanism of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 7 It is a side structural schematic diagram of the negative pressure condensation mechanism of the present invention.

[0025] In the figure: 1. Dendrobium baking box; 11. External baking box; 111. Insulated base; 112. Baking chamber; 113. Rear circuit insulation board; 12. Baking chamber door; 13. Baking heating mechanism; 131. Bottom pad; 1311. Side inclined block; 132. Separation chamber heating mechanism; 1321. Heating connection block; 1322. Heating rod; 133. Heating protection frame; 1331. Heat transfer port; 134. U-shaped heat transfer plate; 1341. Side block; 2. Multi-chamber separation mechanism; 21. Separation chamber; 211. Transmission port; 212. Steam inlet; 22. First L shaped steam channel; 23, second L-shaped steam channel; 24, third L-shaped steam channel; 25, steam conveying mechanism; 251, closing frame; 252, driving motor; 253, first pulley; 254, transmission belt; 255, second pulley; 256, fan blade; 26, steam separation baffle; 261, through support frame; 3, negative pressure condensation mechanism; 31, condensation box; 311, pipe through-port; 32, oblique collection box; 33, negative pressure condensate output pipe; 34, valve; 35, condenser; 351, condensation fixing frame; 352, condensation pipe; 353, heat sink. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In order to solve the problem that the existing Dendrobium officinale baking device uses high temperature baking to process Dendrobium, the heating under this method is easy to make the inside of Dendrobium mature and the outer surface discolor, and the nutritional components of the food may be lost. Dendrobium is a precious Chinese medicinal material, and its nutritional components and medicinal value need to be maintained as much as possible. In addition, this equipment uses the same bin to bake Dendrobium in multiple layers, and there is a technical problem that the baking water of multiple layers of Dendrobium affects each other when evaporating, such as Figure 1-Figure 7 As shown, the following preferred technical solutions are provided:

[0028] A multi-bin low-temperature negative pressure baking box for Dendrobium officinale, comprising a Dendrobium baking box body 1, a multi-bin partition mechanism 2 is fixedly arranged on one side of the Dendrobium baking box body 1, a negative pressure condensation mechanism 3 is fixedly arranged on one side of the multi-bin partition mechanism 2, the Dendrobium baking box body 1 comprises an external baking box 11, a baking box door 12 rotatably arranged on one side of the external baking box 11, a baking heating mechanism 13 fixedly arranged inside the external baking box 11, a baking box 112 is opened in the external baking box 11, and the baking heating mechanism 13 is provided with four groups, and the baking heating mechanism 13 comprises a bottom pad 131 fixedly arranged in the baking box 112, a heating protection frame 133 fixedly arranged on the upper end of the bottom pad 131, and a partition compartment heating mechanism 132 inserted into the heating protection frame 133 , connected to the U-shaped heat transfer plate 134 set on the upper end of the heating protection frame 133, the multi-bin partition mechanism 2 includes a partition box 21, a steam inlet 212 is opened on one side of the partition box 21, and the steam inlet 212 is opened in four groups. One side of the three groups of steam inlets 212 at the lower end is respectively connected to the first L-shaped steam channel 22, the second L-shaped steam channel 23 and the third L-shaped steam channel 24. The other side of the partition box 21 is connected to a steam partition baffle 26, and a steam conveying mechanism 25 is penetrated in the steam partition baffle 26. The negative pressure condensation mechanism 3 includes a condensation box 31 set on one side of the partition box 21, and a condenser 35 connected to one side of the condensation box 31. The four groups of baking heating mechanisms 13 divide the baking bin 112 opened in the external baking box 11 into four vertically parallel The baking box door 12 can be rotated to cooperate with the external baking box 11 to realize the closure of the baking box 112. The bottom pad 131 in the baking heating mechanism 13 isolates the adjacent bins. The four groups of baking heating mechanisms 13 correspond to four bins. The separated bin heating mechanism 132 realizes low-temperature baking. The heating protection frame 133 protects the separated bin heating mechanism 132. The U-shaped heat transfer plate 134 is connected to the upper end of the heating protection frame 133 to close the heating protection frame 133 to prevent the Dendrobium officinale being baked from being stuck in the heating protection frame 133 and the separated bin heating mechanism 132. The U-shaped heat transfer plate 134 is a component made of copper alloy material. Since copper has a high thermal conductivity, the copper alloy has good heat transfer performance, which can evenly heat the separated bin heating mechanism 132. The heat generated by the heat makes the drying efficiency of the Dendrobium officinale in the same bin the same. The U-shaped heat transfer plate 134 is arranged at the lower end of the Dendrobium officinale, which is also convenient for the water in the Dendrobium officinale to evaporate into water vapor and rise upward. The four groups of steam inlets 212 correspondingly guide the water vapor in the four bins. The first L-shaped steam channel 22, the second L-shaped steam channel 23 and the third L-shaped steam channel 24 are arranged to prevent the water vapor in the four bins from affecting each other. The steam separation baffle 26 isolates the space before and after the steam condensation. The rotation of the steam conveying mechanism 25 conveys the steam from the Dendrobium officinale baking box 1 to the negative pressure condensation mechanism 3. The condensation box 31 fixes the condenser 35. When the water vapor conveyed in the Dendrobium officinale baking box 1 meets the condenser 35, the temperature difference causes the temperature of the water vapor to drop rapidly.The cooling medium in the condenser 35 absorbs the heat of the water vapor and raises its own temperature. As the temperature drops, the heat in the water vapor is transferred to the condenser 35 and taken away by the cooling medium. Since the pressure inside the dendrobium baking box 1 is low, the cooling medium in the condenser 35 undergoes a phase change during the cooling of the water vapor, thereby condensing the water vapor into liquid water, which can then be discharged to maintain a negative pressure environment in the oven.

[0029] In order to solve the technical problem that the existing Dendrobium officinale baking device uses the same bin to bake Dendrobium officinale in multiple layers, the baking water of multiple layers of Dendrobium officinale affects each other during evaporation, such as Figure 2-Figure 6 As shown, the following preferred technical solutions are provided:

[0030] The external baking box 11 also includes an insulating base 111 arranged at the lower end of the baking chamber 112. A rear circuit insulation board 113 is fixedly arranged inside the baking chamber 112. The insulating base 111 plays a role of heat insulation from the ground. The setting of the rear circuit insulation board 113 allows the heating circuit to be enclosed on the rear side of the rear circuit insulation board 113. One set of circuits can be used to achieve parallel connection between the four sets of separated chamber heating mechanisms 132, so that the temperatures in the four chambers are equivalent and the drying efficiency is balanced.

[0031] A side inclined block 1311 is fixedly provided at the front end of the bottom pad 131, and the partition chamber heating mechanism 132 includes a heating connection block 1321 connected to one side of the rear circuit insulation plate 113, and a heating rod 1322 fixedly connected to the heating connection block 1321. Several groups of heating rods 1322 are arranged side by side. The oblique setting of the side inclined block 1311 can prevent dirt and facilitate cleaning of the upper end of the baking heating mechanism 13. The partition chamber heating mechanism 132 is fixedly connected to several groups of heating rods 1322, so that the heating efficiency of the Dendrobium officinale in the same chamber is balanced.

[0032] The heating protection frame 133 is provided with heat transfer ports 1331, and a plurality of heat transfer ports 1331 are arranged side by side. Side blocks 1341 are provided at the front and rear sides of the U-shaped heat transfer plate 134. The heat transfer ports 1331 are provided to reduce the obstruction between the heating rod 1322 and the U-shaped heat transfer plate 134, so that the U-shaped heat transfer plate 134 can balance heat. The front and rear side blocks 1341 are provided to seal the lower end of the U-shaped heat transfer plate 134 to prevent dust from entering and hindering heating.

[0033] A transmission opening 211 is provided at the upper end of the partition box 21, and the steam delivery mechanism 25 includes a closing frame 251 fixedly arranged in the transmission opening 211. The transmission opening 211 is used to fix the closing frame 251, and the closing frame 251 closes the multi-bin partition mechanism 2 to maintain a negative pressure state in the entire box.

[0034] The steam conveying mechanism 25 also includes a driving motor 252 fixedly arranged on one side of the closed frame 251, a first pulley 253 arranged at the output end of the driving motor 252, a transmission belt 254 movably arranged on the outside of the first pulley 253, a second pulley 255 arranged on one side of the contacting transmission belt 254, a fan blade 256 fixedly connected to the second pulley 255, and the second pulley 255 is penetrated and arranged in the steam separation baffle 26. The closed frame 251 fixes the driving motor 252, and the driving motor 252 drives the first pulley 253 to rotate. The first pulley 253 drives the second pulley 255 to rotate through the transmission belt 254. The second pulley 255 and the fan blade 256 are fixed to each other and rotate synchronously. The rotation of the fan blade 256 realizes high-speed transportation of water vapor and improves the negative pressure efficiency.

[0035] A through support frame 261 is fixedly disposed at the center of the steam separation baffle 26 , and the second pulley 255 is penetrated and disposed in the through support frame 261 . The through support frame 261 plays a role of fixing and supporting the steam conveying mechanism 25 .

[0036] In order to solve the technical problem that the existing Dendrobium officinale baking device uses high temperature baking to process Dendrobium, the heating under this method is easy to make the inside of Dendrobium ripe and the outside surface discolor, and the nutritional components of the food may be lost. As a precious Chinese medicinal material, Dendrobium needs to maintain its nutritional components and medicinal value as much as possible. Figure 5-Figure 7 As shown, the following preferred technical solutions are provided:

[0037] The negative pressure condensation mechanism 3 also includes an inclined collecting box 32 fixedly arranged at the lower end of the condensation box 31, a negative pressure condensate output pipe 33 connected to the lower end of the inclined collecting box 32, and a valve 34 is connected to the negative pressure condensate output pipe 33. The inclined collecting box 32 collects the liquid water condensed by the condenser 35 in the condensation box 31. The setting of the valve 34 realizes the opening and closing control of the negative pressure condensate output pipe 33. When the valve 34 is opened, the liquid water can be discharged through the negative pressure condensate output pipe 33. When the baking work is in progress, the valve 34 is closed to maintain the closed negative pressure state in the entire drying box.

[0038] The condenser box 31 is provided with a tube through-hole 311 , and the condenser 35 includes a condenser tube 352 inserted into the tube through-hole 311 . The opening of the tube through-hole 311 enables the condenser tube 352 to communicate with the outside, so as to facilitate external transportation and circulation of the coolant inside the condenser tube 352 .

[0039] The condenser 35 also includes a condensation fixing frame 351 fixedly arranged inside the condensation box 31, and the condensation tube 352 is penetrated through the condensation fixing frame 351. The condensation fixing frame 351 is penetrated with heat sinks 353. Several groups of heat sinks 353 are arranged side by side. The condensation fixing frame 351 fixes the condensation tube 352, and several groups of heat sinks 353 arranged side by side assist in cooling the condensation tube 352. The heat sink 353 is a vertical plate, which is convenient for draining liquid water into the oblique collection box 32.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-position low-temperature negative pressure baking oven for Dendrobium officinale, comprising a Dendrobium officinale baking box (1), characterized in that: A multi-compartment partition mechanism (2) is fixedly provided on one side of the dendrobium baking box (1), and a negative pressure condensation mechanism (3) is fixedly provided on one side of the multi-compartment partition mechanism (2); The dendrobium baking box body (1) comprises an external baking box (11), a baking box door (12) rotatably arranged on one side of the external baking box (11), a baking heating mechanism (13) fixedly arranged inside the external baking box (11), a baking chamber (112) opened in the external baking box (11), and four groups of baking heating mechanisms (13) are arranged. The baking heating mechanisms (13) comprise a bottom pad (131) fixedly arranged in the baking chamber (112), a heating protection frame (133) fixedly arranged on the upper end of the bottom pad (131), a partition chamber heating mechanism (132) inserted into the heating protection frame (133), and a U-shaped heat transfer member (133) connected to the upper end of the heating protection frame (133). The multi-bin partition mechanism (2) comprises a partition box (21), one side of the partition box (21) is provided with a steam inlet (212), and the steam inlet (212) is provided with four groups, one side of the three groups of steam inlets (212) at the lower end are respectively connected to the first L-shaped steam channel (22), the second L-shaped steam channel (23) and the third L-shaped steam channel (24), the other side of the partition box (21) is connected to a steam partition baffle (26), and a steam conveying mechanism (25) is provided through the steam partition baffle (26), and the negative pressure condensation mechanism (3) comprises a condensation box (31) arranged on one side of the partition box (21), and a condenser (35) connected through one side of the condensation box (31).

2. The multi-position low-temperature negative pressure baking oven for Dendrobium officinale according to claim 1, characterized in that: The external baking box (11) further comprises a heat-insulating base (111) arranged at the lower end of the baking chamber (112), and a rear circuit heat-insulating plate (113) is fixedly arranged inside the baking chamber (112).

3. The multi-position low-temperature negative pressure baking oven for Dendrobium officinale according to claim 1, characterized in that: A side inclined block (1311) is fixedly arranged at the front end of the bottom pad (131), and the compartment heating mechanism (132) comprises a heating connection block (1321) connected to one side of the rear circuit heat insulation board (113), and a heating rod (1322) fixedly connected to the heating connection block (1321), wherein a plurality of groups of heating rods (1322) are arranged side by side.

4. The multi-position low-temperature negative pressure baking oven for Dendrobium officinale according to claim 1, characterized in that: The heating protection frame (133) is provided with heat transfer openings (1331), and a plurality of groups of heat transfer openings (1331) are arranged side by side. Side blocks (1341) are provided on the front and rear sides of the U-shaped heat transfer plate (134).

5. The multi-position low-temperature negative pressure baking oven for Dendrobium officinale according to claim 1, characterized in that: A transmission opening (211) is provided at the upper end of the partition box (21), and the steam delivery mechanism (25) comprises a closed frame (251) fixedly arranged in the transmission opening (211).

6. The multi-position low-temperature negative pressure baking oven for Dendrobium officinale according to claim 5, characterized in that: The steam conveying mechanism (25) further comprises a driving motor (252) fixedly arranged on one side of the closed frame (251), a first pulley (253) arranged at the output end of the driving motor (252), a transmission belt (254) movably arranged outside the first pulley (253), a second pulley (255) arranged on one side in contact with the transmission belt (254), and a fan blade (256) fixedly connected to the second pulley (255), wherein the second pulley (255) is arranged to penetrate inside the steam separation baffle (26).

7. The multi-position low-temperature negative pressure baking oven for Dendrobium officinale according to claim 1, characterized in that: A penetrating support frame (261) is fixedly disposed at the center of the steam separation baffle (26).

8. The multi-position low-temperature negative pressure baking oven for Dendrobium officinale according to claim 1, characterized in that: The negative pressure condensation mechanism (3) also includes an oblique collection box (32) fixedly arranged at the lower end of the condensation box (31), a negative pressure condensate output pipe (33) connected to the lower end of the oblique collection box (32), and a valve (34) is connected to the negative pressure condensate output pipe (33).

9. The multi-position low-temperature negative pressure baking oven for Dendrobium officinale according to claim 1, characterized in that: The condensation box (31) is provided with a pipe through-hole (311), and the condenser (35) includes a condensation pipe (352) inserted into the pipe through-hole (311).

10. The multi-position low-temperature negative pressure baking oven for Dendrobium officinale according to claim 1, characterized in that: The condenser (35) further comprises a condensation fixing frame (351) fixedly arranged inside the condensation box (31); a condensation pipe (352) is arranged through the condensation fixing frame (351); a heat sink (353) is arranged through the condensation fixing frame (351); and a plurality of groups of heat sinks (353) are arranged side by side.

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