Diglyceride edible oil molecular distillation equipment capable of rapidly cooling

Abstract

The invention relates to the technical field of distillation, and discloses diglyceride edible oil molecular distillation equipment capable of rapidly cooling, the diglyceride edible oil molecular distillation equipment comprises a tank body, a semiconductor mounting seat is arranged in the middle of the interior of the tank body, and a light component condensation and collection area and a heavy component condensation and collection area are respectively arranged above and below the semiconductor mounting seat; wherein a secondary condensation section is arranged outside the heavy component condensation and collection area, a semiconductor refrigeration module is arranged in the semiconductor mounting seat, the cold end of the semiconductor refrigeration module is used for condensation of the light component condensation and collection area, and the secondary condensation section is communicated with the light component condensation and collection area. Oil condensed in the light component condensation and collection area is converged into the secondary condensation area and used for condensing steam in the heavy component condensation and collection area, the light component condensation area and the heavy component condensation area are separated through the device, the light component condensation area is located at the top end of the evaporation tower, heavy components cannot rise to the light component condensation area, and the purity of the light component condensation oil is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of distillation, in particular to a molecular distillation device for diglyceride edible oil capable of being cooled quickly. Background Art

[0002] By using high temperature and low pressure conditions to heat the crude oil, the volatile components in the oil are evaporated and separated, achieving the effects of removing free fatty acids, cholesterol and deodorizing.

[0003] Chinese patent CN112704893B discloses a molecular distiller with a scraper, including a motor, a distillation cylinder, a heating jacket is arranged outside the distillation cylinder, and a vacuum tube is connected to the lower part of the distillation cylinder, characterized in that: a distribution plate, a film scraping mechanism and a condensing mechanism driven by a motor are arranged inside the distillation cylinder from top to bottom, multiple groups of film scraping mechanisms are evenly distributed along the motor shaft, a feed pipe is arranged above the distribution plate, and the lower part of the distillation cylinder is connected to a heavy component collection chamber and a heavy component outlet pipe. The present invention utilizes the gravity of the condenser itself and the elastic pull rope to make the lever and the transmission rod rotate along the rotating shaft and move the slider, so that the scraper is fully fitted with the inner wall of the distillation cylinder, and when the film scraping mechanism is not coaxial with the distillation cylinder, the gravity of the condenser itself and the elastic force of the elastic pull rope ensure that the scraper is always fully fitted with the inner wall of the distillation cylinder, so that the liquid film can be pulled into a uniform liquid film, and the distillation efficiency is significantly improved.

[0004] In the above patent, after the crude oil is heated to gaseous state by evaporation, the gaseous evaporated product is cooled for condensation and collection. Other distillation equipment including the above patent basically achieves the deodorization effect of edible oil by setting a condensation column at the center of the distillation tower to condense and collect the evaporated product, and collecting the condensate on the condensation column by rotating the scraper. The columnar condensation structure allows the light components and heavy components after heating to condense on the condensation column. The light and heavy components are condensed in the upper and lower areas of the condensation column respectively, and the condensate in the two areas is collected and distinguished at the same time.

[0005] However, at the intersection of the upper and lower areas, there is an intersection area where light and heavy components condense. The condensate collected in this area is still in a mixed state and needs to be distilled again, which cannot achieve the effect of rapid cooling, separation and condensation. Therefore, a diglyceride edible oil molecular distillation equipment with rapid cooling is proposed. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a molecular distillation device for diglyceride edible oil that can be cooled quickly, which has advantages and solves the problems.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a molecular distillation device for diglyceride edible oil that can be cooled quickly, comprising a tank body, a semiconductor mounting seat is arranged in the middle of the tank body, a light component condensation collection area and a heavy component condensation collection area are arranged above and below the semiconductor mounting seat, respectively, wherein a secondary condensation interval is arranged outside the heavy component condensation collection area, an evaporation plate is arranged at the bottom end of the tank body, a semiconductor refrigeration module is arranged in the semiconductor mounting seat, and a feeding pipe for feeding is connected to the semiconductor mounting seat, the crude oil transported in the feeding pipe is connected to the hot end of the semiconductor refrigeration module, the cold end of the semiconductor refrigeration module is used for condensation in the light component condensation collection area, the secondary condensation interval is connected to the light component condensation collection area, the oil condensed in the light component condensation collection area is merged into the secondary condensation interval, and is used for the heavy component condensation collection area. The steam at the component condensation collection area is condensed, and the device completely separates the light component condensation area from the heavy component condensation area. The light component condensation area is arranged at the inner top of the evaporation tower. The heavy component cannot rise to the light component condensation area, so that the impurity content of the oil body condensed by the light component is further reduced, thereby ensuring the purity of the light component condensed oil body. In addition, the condensation of the light component is realized by a semiconductor refrigeration module. The refrigerant of the semiconductor refrigeration module acts on the light component, and its hot end is connected to the feed pipe. While the crude oil takes away the heat from the hot end of the semiconductor refrigeration module, the initial heating of the crude oil is completed during the feeding process to reduce the energy consumption of the distillation device for evaporating the crude oil. In addition, the oil body condensed by the semiconductor refrigeration module is connected to the heavy component condensation area to condense the heavy component to increase energy utilization efficiency, improve the condensation effect, and reduce energy consumption requirements.

[0008] Preferably, the light component condensation collection area includes a transmission structure, a condensation component and a collection component. A refrigerant pipeline is provided in the condensation component, and the refrigerant pipeline is connected to the cold end of the semiconductor refrigeration module. The condensate on the condensation component is collected by the collection component and then merged into the secondary condensation interval. The refrigerant of the semiconductor refrigeration module is transmitted to the condensation component to condense the gaseous light components here. The condensed oil body is still in a low-temperature state. After being merged into the secondary condensation interval, the condensed oil body at a low temperature has a large temperature difference with the tank body, so it can be used as a refrigerant in the heavy component condensation interval.

[0009] Preferably, the transmission structure includes a driving motor, a connecting disk and a twisted shaft, the driving motor drives the twisted shaft to rotate, the connecting disk is mounted on the twisted shaft, and two positioning rods are provided on the semiconductor mounting seat to pass through the connecting disk. The rotation of the twisted shaft can drive the connecting disk to reciprocate up and down.

[0010] Preferably, the condensing assembly includes a main sliding part, a positioning device fixing rod and a condensing knife, wherein the refrigerant pipeline is connected to the sliding part and contacts with the condensing knife, the fixing rod is fixedly installed on the inner wall of the tank body and inserted into the sliding part, and the sliding part can slide along the fixing rod. After the refrigerant pipeline is included in the sliding part and contacts with the condensing knife, the temperature of the condensing knife head is reduced, and the light components can be condensed at its cutting edge.

[0011] Preferably, a connecting rod is provided between the sliding member and the connecting disk, and the connecting rod is rotatably connected to the sliding member and the connecting disk. The twisted shaft rotates to drive the connecting disk to reciprocate up and down, so as to push the sliding member to move through the connecting rod. Due to the limitation of the fixed rod, the sliding member reciprocates back and forth along the route of the fixed rod.

[0012] Preferably, the collecting assembly comprises two attached plates mounted on the inner wall of the tank body, a partition being connected between the two attached plates, cooperating with the inner wall of the tank body to form an oil transfer channel, and a drainage scraper being connected in the middle of the two attached plates, the drainage scraper extending upward to contact with the condensation knife, and a groove matching with the edge of the condensation knife is provided on the drainage scraper, the sliding part reciprocating back and forth drives the condensation knife to reciprocate, and the oil condensed on the edge of the condensation knife is collected on the drainage scraper by scraping, and then merged into the secondary condensation zone.

[0013] Preferably, the secondary condensation zone includes a conduit connected to the collection component and a collecting channel that collects the conduits. The concentrating channel extends downward to have an attachment layer arranged around the tank body. The attachment layer is formed by a thin plate extending from the conduit close to the outer wall of the tank body. A collecting ring is arranged below the attachment layer. After the collected condensed oil body is merged into the concentrating channel, it flows downstream along the attachment layer. During the flow, the heavy components in the tank body are cooled and condensed.

[0014] Preferably, the heavy component condensation collection area uses the thinner inner wall area of ​​the tank body as the condensation wall, and the condensation wall is in contact with the area surrounding the feed pipe. The heavy component condensation collection area includes a rotating spiral scraper, and the cutting edge of the spiral scraper is in contact with the condensation wall. A collection tank is provided below the condensation wall. The thinner inner wall area is used as the condensation wall to enhance the heat exchange efficiency between this area and the outside to achieve a better cooling effect, so that the heavy component condenses in this area, and the condensed heavy component oil body is pushed into the collection tank by the push of the spiral scraper.

[0015] Preferably, a plurality of grid plates are arranged outside the attachment layer, and a sealing valve is arranged on the collecting ring. When different batches of crude oil are distilled, the contents of light and heavy components in different crude oils are different. When the content of light components is low, the amount of condensed light component oil is small. By closing the sealing valve, the condensed oil is retained in the secondary condensation interval for a longer time, so as to condense the heavy component oil with a higher content, thereby ensuring the condensation effect.

[0016] Compared with the prior art, the present invention provides a molecular distillation device for diglyceride edible oil that can be quickly cooled, having the following beneficial effects: 1. The device completely separates the light component condensation area from the heavy component condensation area. The light component condensation area is arranged at the inner top of the evaporation tower, and the heavy components cannot rise to the light component condensation area, further reducing the content of oil impurities condensed by the light components and ensuring the purity of the light component condensed oil body; 2. The condensation of the light components is achieved through a semiconductor refrigeration module. The refrigerant of the semiconductor refrigeration module acts on the light components, and its hot end is connected to the feed pipe. While the crude oil takes away the heat from the hot end of the semiconductor refrigeration module, the crude oil is initially heated during the feeding process to reduce the energy consumption of the distillation device for evaporating the crude oil; 3. The oil body condensed by this semiconductor refrigeration module is docked with the heavy component condensation area to condense the heavy components, increasing the energy utilization efficiency, improving the condensation effect, and reducing the energy consumption demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall external structure of a molecular distillation device for diglyceride edible oil that can be quickly cooled according to the present invention; Figure 2 is a cross-sectional view of the internal structure of a molecular distillation device for diglyceride edible oil that can be quickly cooled according to the present invention; Figure 3 is a front view of the internal structure of a molecular distillation device for diglyceride edible oil that can be quickly cooled according to the present invention; Figure 4 is a schematic diagram of the structure of the light component condensation and collection area of a molecular distillation device for diglyceride edible oil that can be quickly cooled according to the present invention; Figure 5 is a schematic diagram of the transmission structure of the light component condensation and collection area of a molecular distillation device for diglyceride edible oil that can be quickly cooled according to the present invention; Figure 6 is a schematic diagram of the structure of the condensation component and collection component of a molecular distillation device for diglyceride edible oil that can be quickly cooled according to the present invention; Figure 7 is a schematic diagram of the structure of the secondary condensation area of a molecular distillation device for diglyceride edible oil that can be quickly cooled according to the present invention.

[0018] In the figure: 1. Tank body; 2. Light component condensation and collection area; 21. Driving motor; 22. Connecting disk; 23. Twisted shaft; 24. Condensation component; 25. Partition cover; 26. Collection component; 241. Sliding part; 242. Fixed rod; 243. Condensing knife; 244. Refrigerant pipeline; 261. Attachment plate; 262. Partition plate; 263. Drainage scraping plate; 3. Feed pipe; 4. Secondary condensation zone; 41. Conduit; 42. Centralized channel; 43. Adhesive layer; 44. Grid plate; 45. Collection ring; 5. Evaporation pan; 6. Semiconductor mounting seat; 7. Heavy component condensation collection area; 71. Spiral scraping knife; 72. Collection tank. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a molecular distillation device for diglyceride edible oil that can be quickly cooled.

[0021] Embodiment 1, as Figures 1 - 7 shown, a molecular distillation device for diglyceride edible oil that can be quickly cooled includes a tank body 1. A semiconductor mounting seat 6 is arranged in the middle inside the tank body 1. A light component condensation collection area 2 and a heavy component condensation collection area 7 are respectively arranged above and below the semiconductor mounting seat 6. Among them, a secondary condensation zone 4 is arranged outside the heavy component condensation collection area 7. An evaporation pan 5 is arranged at the bottom inside the tank body 1, and a vacuum pump for evacuating the inside of the tank body 1; A feed pipe 3 for feeding is connected to the semiconductor mounting seat 6, and the crude oil conveyed by the feed pipe 3 is in contact with the hot end of the semiconductor refrigeration module inside the semiconductor mounting seat 6 for preheating the crude oil. Then it falls into the evaporation pan 5 and is vaporized in the evaporation pan 5 to provide conditions for subsequent condensation. The cold end of the semiconductor refrigeration module inside the semiconductor mounting seat 6 is connected to a water cooling system and is connected to the light component condensation collection area 2 for condensing the gas evaporated by the evaporation pan 5. The light component condensation collection area 2 contains a collection component 26. The collection component 26 guides the liquid edible oil condensed in the light component condensation collection area 2 to the secondary condensation zone 4. At this time, the edible oil preliminarily condensed by the condensation system is in a state of relatively low temperature, and after flowing into the secondary condensation zone 4, it has a large temperature difference with the heavy component condensation collection area 7 it contains, so as to be used as a refrigerant for the condensation of heavy components in the heavy component condensation collection area 7 to assist the condensation of heavy components in the heavy component condensation collection area 7 into liquid.

[0022] Embodiment 2, specifically, refer toFigure 2 and Figure 3 As shown, the light component condensation collection area 2 includes a power source drive motor 21, a transmission device connecting disk 22 and a twisted shaft 23. The drive motor 21 drives the twisted shaft 23 to rotate. During the rotation, the connecting disk 22 is driven to reciprocate up and down through the restriction of two positioning rods extending from the semiconductor mounting seat 6.

[0023] See also Figures 4 to 6 As shown, the light component condensation collection area 2 also includes a condensation component 24 and a partition 25. The condensation component 24 includes a main sliding part 241, a positioning device fixing rod 242, a condensation knife 243 and a refrigerant pipeline 244, wherein the refrigerant pipeline 244 is connected to the cold end of the semiconductor refrigeration module, and a pump body is provided to drive the flow of the refrigerant in the pipeline. When the refrigerant flows into the sliding part 241, it acts on the condensation knife 243 to achieve the effect of condensing edible oil on the condensation knife 243. The partition 25 is arranged to fit the movement path of the condensation knife 243 to isolate the light component vapor from the transmission structure.

[0024] In addition, a connecting rod is provided between the sliding member 241 and the connecting plate 22, and the connecting rod is rotatably connected to both. The fixed rods 242 are two rod-shaped structures fixed on the inner wall of the light component condensation collection area 2. The two fixed rods 242 are inserted into the sliding member 241 and slidably connected thereto, and are used to limit the sliding member 241, so that the connecting plate 22 pushes the sliding member 241 to reciprocate forward and backward along the fixed rods 242 during the up and down reciprocating motion. The collecting assembly 26 includes two attached plates 261 installed on the inner wall of the tank body 1, and the two attached plates 261 are spaced apart from each other. A partition 262 is connected to form an oil transfer channel in cooperation with the inner wall of the tank body 1, and a drainage scraper 263 is connected in the middle of the two attached plates 261. The drainage scraper 263 extends upward to dock with the condensation knife 243, and a groove matching the cutting edge of the condensation knife 243 is opened on the drainage scraper 263, so that during the reciprocating motion of the condensation knife 243, the liquid edible oil condensed by the drainage scraper 263 is collected on the drainage scraper 263, and then flows in the oil transfer channel along the two sides of the drainage scraper 263, and then is concentrated and collected in the secondary condensation zone 4.

[0025] See also Figure 3 As shown, the hot end of the refrigeration module is provided with a spiral pipeline to increase the contact time between the crude oil and the hot end, thereby enhancing the initial heating effect of the crude oil, relieving the heat dissipation pressure of the semiconductor refrigeration module, and increasing the refrigeration effect of the cold end of the semiconductor refrigeration module. It should be added that the evaporation device and vacuum device in semiconductor refrigeration and condensation distillation are both existing technologies, and the evaporation device and vacuum device are irrelevant to the content of the condensation part of this case, so the three are not shown in detail in the diagram.

[0026] Example 3, seeFigure 2 , Figure 3 and Figure 7 As shown in Figure 7 , the secondary condensation zone 4 includes a conduit 41 docked with the collection assembly 26 and a centralized channel 42 that aggregates the conduits 41. The centralized channel 42 extends downward with an attachment layer 43 formed by a thin plate close to the outer wall of the tank body 1. A number of grid plates 44 are provided outside the attachment layer 43 to increase the heat dissipation effect of the refrigerant in the attachment layer 43. At the same time, a collection ring 45 is provided below the attachment layer 43 to finally collect the condensed edible oil. A sealing valve is provided on the collection ring 45 to control the final output of the oil.

[0027] The heavy component condensation collection area 7 uses the thinner inner wall of the tank body 1 as the condensation wall. By reducing the thickness of this area, the heat exchange efficiency between the heavy component vapor inside the tank body 1 and the outside is increased to enhance the condensation effect of the heavy component vapor in this area. The heavy component condensation collection area 7 includes a rotating spiral scraper 71. The cutting edge part of the spiral scraper 71 is attached to the condensation inner wall. During rotation, the condensate is pushed downward. At the same time, a collection trough 72 is provided below the condensation inner wall to centrally collect the collected condensate into the collection trough 72 and discharge it subsequently.

[0028] The edible oil flowing into the centralized channel 42 is formed by condensation at the condensation knife 243 and has a lower temperature. When it flows into the attachment layer 43, it still has a large temperature difference with the heavy component gas in the heavy component condensation collection area 7 and can be used as the refrigerant for the heavy component condensation collection area 7. After cooling and condensing the gas in the heavy component condensation collection area 7, it flows downward into the collection ring 45 in the attachment layer 43 and is discharged through the control valve subsequently.

[0029] The proportion of heavy components and light components contained in the oil body evaporated by the evaporation pan 5 is not the same, resulting in different amounts of light and heavy components evaporated each time, and thus different amounts of oil condensed at the light component condensation collection area 2 and the heavy component condensation collection area 7 each time. When the light component content is high, more oil is condensed at the light component condensation collection area 2. At this time, there is sufficient oil flowing into the secondary condensation zone 4, which can effectively be used as the refrigerant for condensing the heavy components in the heavy component condensation collection area 7. When the light component content is low, less oil is condensed at the light component condensation collection area 2, and the oil flowing into the secondary condensation zone 4 is insufficient, making it impossible to effectively cool the heavy component gas in the heavy component condensation collection area 7. At this time, the control valve in the collection ring 45 is closed, and the oil flowing into the secondary condensation zone 4 is centrally collected. After a longer evaporation time, the amount of oil condensed by the light components increases and gradually flows into the secondary condensation zone 4. By extending the residence time of the oil in the secondary condensation zone 4, the condensation effect on the heavy component gas is increased.

[0030] The device completely separates the light component condensation area from the heavy component condensation area. The light component condensation area is arranged at the inner top of the evaporation tower. The heavy component cannot rise to the light component condensation area, so that the impurity content of the oil body condensed by the light component is further reduced, thereby ensuring the purity of the light component condensed oil body. In addition, the condensation of the light component is realized by a semiconductor refrigeration module. The refrigerant of the semiconductor refrigeration module acts on the light component, and its hot end is connected to the feed pipe. While the crude oil takes away the heat of the hot end of the semiconductor refrigeration module, the initial heating of the crude oil is completed during the feeding process to reduce the energy consumption of the distillation device for evaporating the crude oil. In addition, the oil body condensed by the semiconductor refrigeration module is connected to the heavy component condensation area to condense the heavy component to increase energy utilization efficiency, improve the condensation effect, and reduce energy consumption requirements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A molecular distillation device for diglyceride edible oil capable of rapid cooling, comprising a tank body (1), characterized in that: A semiconductor mounting seat (6) is arranged in the middle of the tank body (1), and a light component condensation collection area (2) and a heavy component condensation collection area (7) are arranged above and below the semiconductor mounting seat (6), respectively, wherein a secondary condensation zone (4) is arranged outside the heavy component condensation collection area (7), and an evaporation plate (5) is arranged at the bottom end of the tank body (1). A semiconductor refrigeration module is arranged in the semiconductor mounting seat (6), and a feed pipe (3) for feeding is connected to the semiconductor mounting seat (6), and crude oil is transported in the feed pipe (3) and connected to the hot end of the semiconductor refrigeration module, and the cold end of the semiconductor refrigeration module is used for condensing the light component condensation collection area (2). The secondary condensation zone (4) is connected to the light component condensation collection area (2), and the oil condensed in the light component condensation collection area (2) flows into the secondary condensation zone (4) to condense the steam in the heavy component condensation collection area (7).

2. The molecular distillation equipment for diglyceride edible oil capable of rapid cooling according to claim 1, characterized in that: The light component condensation collection area (2) comprises a transmission structure, a condensation component (24) and a collection component (26); a refrigerant pipeline (244) is provided in the condensation component (24); the refrigerant pipeline (244) is connected to the cold end of the semiconductor refrigeration module; the condensate on the condensation component (24) is collected by the collection component (26) and then merged into the secondary condensation zone (4).

3. A rapidly cooling diglyceride edible oil molecular distillation device according to claim 2, characterized in that: The transmission structure comprises a driving motor (21), a connecting disk (22) and a twisted shaft (23); the driving motor (21) drives the twisted shaft (23) to rotate; the connecting disk (22) is sleeved on the twisted shaft (23); two positioning rods are provided on the semiconductor mounting seat (6) and penetrate the connecting disk (22); the connecting disk (22) can be driven to reciprocate up and down by the rotation of the twisted shaft (23).

4. The molecular distillation equipment for diglyceride edible oil capable of rapid cooling according to claim 3, characterized in that: The condensation assembly (24) includes a main sliding member (241), a positioning device fixing rod (242) and a condensation knife (243), wherein the refrigerant pipeline (244) is connected to the sliding member (241) and contacts the condensation knife (243), the fixing rod (242) is fixedly installed on the inner wall of the tank body (1) and inserted into the sliding member (241), and the sliding member (241) can slide along the fixing rod (242).

5. The molecular distillation equipment for diglyceride edible oil capable of rapid cooling according to claim 4, characterized in that: A connecting rod is provided between the sliding member (241) and the connecting disk (22), and the connecting rod is rotationally connected to the sliding member (241) and the connecting disk (22).

6. The molecular distillation equipment for diglyceride edible oil capable of rapid cooling according to claim 2, characterized in that: The collecting assembly (26) comprises two attached plates (261) mounted on the inner wall of the tank body (1), a partition (262) being connected between the two attached plates (261) to form an oil delivery channel in cooperation with the inner wall of the tank body (1), and a drainage scraper (263) being connected in the middle of the two attached plates (261), the drainage scraper (263) extending upward to contact the condensation knife (243), and a groove matching the cutting edge of the condensation knife (243) being provided on the drainage scraper (263).

7. The molecular distillation equipment for diglyceride edible oil capable of rapid cooling according to claim 6, characterized in that: The secondary condensation zone (4) comprises a conduit (41) connected to the collection assembly (26), and a centralizing channel (42) for collecting the conduits (41); the centralizing channel (42) extends downward to have an attachment layer (43) arranged around the tank body (1); the attachment layer (43) is formed by a thin plate extending from the conduit (41) and close to the outer wall of the tank body (1); a collecting ring (45) is arranged below the attachment layer (43).

8. The molecular distillation equipment for diglyceride edible oil capable of rapid cooling according to claim 7, characterized in that: The heavy component condensation collection area (7) uses the thinner inner wall area of ​​the tank body (1) as a condensation wall, and the condensation wall is in contact with the surrounding area of ​​the feed pipe (3). The heavy component condensation collection area (7) includes a rotating spiral scraper (71), and the cutting edge of the spiral scraper (71) is in contact with the condensation wall. A collection groove (72) is provided below the condensation wall.

9. The molecular distillation equipment for diglyceride edible oil capable of rapid cooling according to claim 7, characterized in that: A plurality of grid plates (44) are arranged outside the attachment layer (43), and a sealing valve is arranged on the collecting ring (45).

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