Rare ginsenoside anticancer active component extraction equipment

Abstract

The utility model discloses rare ginsenoside anticancer active ingredient extraction equipment which comprises a device base, a controller fixedly mounted on the device base, a heating plate fixedly mounted at the top of the device base, a distillation tank fixedly mounted at the top of the heating plate, and the controller electrically connected with the heating plate. According to the rare ginsenoside anticancer active ingredient extraction equipment provided by the utility model, the first screw rod can be separated from the distillation tank by rotating the first screw rod, the sealing cover can be opened immediately, then raw materials can be put on the sieve plate, fine particles can fall into the distillation tank by virtue of the sieve plate, coarse particles are blocked, and the extraction efficiency of the rare ginsenoside anticancer active ingredients is improved. The raw material particles entering the distillation tank are relatively fine and relatively uniform, the surface area of the relatively fine raw material particles is relatively large, the relatively fine raw material particles are easier to contact with a solvent, and the relatively fine raw material particles are extracted, so that the subsequent overall ginsenoside extraction efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ginseng processing, in particular to equipment for extracting rare ginsenoside anti-cancer active components. Background Art

[0002] Ginsenosides, the main active ingredients extracted from ginseng, possess a wide range of biological activities. Studies have shown that ginsenosides exhibit potential in anti-cancer activities. They inhibit tumor cell growth through multiple mechanisms, such as inducing apoptosis, inhibiting tumor angiogenesis, and reducing cancer cell invasion and metastasis.

[0003] For example, a Chinese utility model patent (CN213447022U) discloses a distillation device for extracting ginsenosides, which states: "The spiral tube is located inside the condenser, the output end of the spiral tube is connected to the input end of the liquid guide tube, the condenser is provided with a refrigeration device, the interior of the collection box is provided with an oil storage cavity, the top of the collection box is connected with an opening, the box cover is installed at the opening, the box cover is provided with a through hole, the output end of the liquid guide tube passes through the right end of the condenser and the through hole and extends into the oil storage cavity." It also states: "The existing method for extracting saponins from ginseng is to place the ginseng in a distillation box, which then distills the ginseng, and the saponins are extracted from the ginseng. The extracted gaseous glycoside oil is collected in the collection box. It takes a long time to convert the gaseous glycoside oil into liquid glycoside oil, and the existing distillation box is not convenient for controlling the temperature, which easily destroys the glycoside oil structure." This is a technical problem.

[0004] In summary, it can be seen that the prior art uses a temperature control device to control the heating plate and then control the temperature inside the distillation box. However, this method has the following technical problems: However, during the traditional ginsenoside extraction, the ginseng raw material is often processed into powder, and there may be coarser and finer raw material particles in the powdered raw material particles. The coarse particles have a relatively large volume and a small surface area, and are relatively difficult to fully contact the solvent, resulting in lower extraction efficiency than the fine particles, and ultimately reducing the overall ginsenoside extraction efficiency. The above-mentioned device does not have a relevant structure for screening the raw materials. For this reason, the present application proposes a rare ginsenoside anti-cancer active ingredient extraction device to provide a new technical solution to solve the technical problems mentioned in the above patents. Utility Model Content

[0005] Based on this, it is necessary to provide a rare ginsenoside anti-cancer active ingredient extraction equipment to address the above technical problems. By rotating the first screw, the first screw can be made to leave the distillation tank, and then the sealing cover can be opened, and the raw material can be put onto the sieve plate. The sieve plate can make finer particles fall into the distillation tank and block the coarser particles, so that the raw material particles entering the distillation tank are relatively fine and relatively uniform. The surface area of ​​relatively fine raw material particles is relatively larger and easier to contact with the solvent. Extracting relatively fine raw material particles helps to improve the subsequent overall extraction efficiency of ginsenosides, and by controlling the drive motor, the cam can be driven to rotate, and the fixed plate can be pushed by the cam, so that the springs on both sides of the sliding frame are deformed. After the cam leaves the fixed plate, the sliding frame can be moved to the initial position under the action of the spring elastic force, so that the sliding frame and the sieve plate vibrate, thereby improving the screening efficiency of ginseng raw materials and further improving the extraction efficiency of ginsenosides.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A device for extracting the anti-cancer active components of rare ginsenosides is used for extracting the anti-cancer active components of rare ginsenosides.

[0008] The equipment for extracting the rare ginsenoside anticancer active ingredients specifically includes:

[0009] A device base, wherein a controller is fixedly mounted on the device base, a heating plate is fixedly mounted on the top of the device base, a distillation tank is fixedly mounted on the top of the heating plate, the controller and the heating plate are electrically connected, a screening mechanism is provided on the distillation tank, an air outlet pipe is fixedly connected to the inner wall of the distillation tank, an end of the air outlet pipe away from the distillation tank is fixedly connected to a collection box, and a cooling mechanism is provided on the air outlet pipe;

[0010] The screening mechanism includes a sealing cover, a sliding frame, a first screw, a connecting assembly, a driving assembly, and an installation assembly. The top of the distillation tank is rotatably connected to the sealing cover, the inner wall of the sealing cover is threadedly connected to the first screw, the first screw is movably inserted in the distillation tank, and the inner wall of the distillation tank is slidably connected to the sliding frame.

[0011] As a preferred embodiment of the rare ginsenoside anti-cancer active ingredient extraction equipment provided by the present invention, the connecting component includes a sliding rod, and multiple sliding rods are fixedly connected to the left and right sides of the sliding frame respectively, and the outer walls of the multiple sliding rods are respectively slidably connected to the sleeves, and the multiple sleeves are fixedly connected to the inner wall of the distillation tank, and the end of the sliding rod located inside the sleeve is fixedly connected to a spring, and the end of the spring away from the sliding rod is fixedly connected to the inner wall of the sleeve.

[0012] As a preferred embodiment of the rare ginsenoside anti-cancer active ingredient extraction equipment provided by the utility model, the driving assembly includes a U-shaped frame, the top of the distillation tank is fixedly connected to the U-shaped frame, the top of the U-shaped frame is fixedly installed with a driving motor, the output end of the driving motor is fixedly connected to a cam, and the top of the sliding frame is fixedly connected to a fixing plate adapted to the cam.

[0013] As a preferred embodiment of the rare ginsenoside anti-cancer active ingredient extraction equipment provided by the utility model, the mounting assembly includes an L-shaped plate and a second screw, the inner wall of the sliding frame and the left and right sides are respectively slidably connected with L-shaped plates, a sieve plate is fixedly connected between the two L-shaped plates, the tops of the two L-shaped plates are respectively fixedly connected with card plates, the top of the sliding frame and the front and rear sides of the two card plates are respectively fixedly connected with limiting plates, the inner wall of the limiting plate is threadedly connected to the outer wall of the second screw, and the second screw is movably inserted in the card plate.

[0014] As a preferred embodiment of the rare ginsenoside anti-cancer active ingredient extraction equipment provided by the utility model, the cooling mechanism includes a cooling pipe, the outer wall of the outlet pipe is fixedly connected to the cooling pipe, the outer wall of the cooling pipe is fixedly connected to a support frame, the bottom end of the support frame is fixedly connected to a water tank, a refrigeration component is fixedly installed on the water tank, a water pump is fixedly installed on the top of the water tank, the water inlet pipe of the water pump is fixedly connected to the inner wall of the water tank, and the water outlet pipe of the water pump is fixedly connected to the inner wall of the cooling pipe.

[0015] As a preferred embodiment of the rare ginsenoside anti-cancer active ingredient extraction equipment provided by the present invention, the cooling mechanism also includes a reflux pipe, the inner wall of the cooling pipe is fixedly connected to the reflux pipe, the reflux pipe is wrapped around the outside of the outlet pipe, and the end of the reflux pipe away from the cooling pipe is fixedly connected to the inner wall of the water tank.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The rare ginsenoside anti-cancer active ingredient extraction equipment provided by the present invention can make the first screw leave the distillation tank by rotating the first screw, and then the sealing cover can be opened, and the raw material can be put into the sieve plate. The sieve plate can make finer particles fall into the distillation tank and block coarser particles, so that the raw material particles entering the distillation tank are relatively fine and relatively uniform. The surface area of ​​relatively fine raw material particles is relatively larger and easier to contact with the solvent. Extracting relatively fine raw material particles helps to improve the subsequent overall extraction efficiency of ginsenosides, and the cam can be driven to rotate by controlling the driving motor, and the fixed plate can be pushed by the cam, so that the springs on both sides of the sliding frame are deformed. After the cam leaves the fixed plate, the sliding frame can be moved to the initial position under the action of the spring elastic force, so that the sliding frame and the sieve plate vibrate, thereby improving the screening efficiency of the ginseng raw material and further improving the ginsenoside extraction efficiency.

[0018] The rare ginsenoside anti-cancer active ingredient extraction equipment provided by the utility model can make the second screws leave the card plate by rotating the two second screws, and then the two card plates can be pulled upward, and the sieve plate is driven by the L-shaped plate to separate from the sliding frame, so that the sieve plate can be cleaned and maintained, and the sieve plates with different sieve hole sizes can be replaced according to the extraction processing needs to meet different processing needs, thereby improving the practicality of the device.

[0019] The rare ginsenoside anti-cancer active ingredient extraction equipment provided by the utility model can transfer the water inside the water tank to the cooling pipe by controlling the water pump. After the cooling pipe is filled, the excess water can flow into the inside of the water tank through the reflux pipe, and the distilled gas can flow to the collection box through the outlet pipe. During this process, it can be cooled and condensed when passing through the area surrounded by the cooling pipe, and then become liquid and flow into the collection box. When the water that exchanges heat with the gas in the outlet pipe flows into the water tank through the reflux pipe, it can pass through the area wrapped around the outside of the outlet pipe, and thus pre-cool the gas inside the outlet pipe before condensation, thereby improving the subsequent condensation efficiency, shortening the time used for condensation, and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the solutions in the present invention, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of the equipment for extracting the rare ginsenoside anti-cancer active ingredients provided by the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the equipment for extracting the rare ginsenoside anti-cancer active ingredients provided by the utility model;

[0023] Figure 3 This is a schematic diagram of the sealing cover opening structure of the rare ginsenoside anti-cancer active ingredient extraction equipment provided by the utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the distillation tank portion of the rare ginsenoside anti-cancer active ingredient extraction equipment provided by the utility model;

[0025] Figure 5 This is a schematic diagram of the partial structure and separation structure of the equipment for extracting the rare ginsenoside anti-cancer active ingredients provided by the utility model;

[0026] Figure 6 The utility model provides a rare ginsenoside anticancer active ingredient extraction device Figure 5 A magnified view of center.

[0027] The markings in the figure are as follows:

[0028] 1. Device base; 2. Controller; 3. Heating plate; 4. Distillation tank; 5. Screening mechanism; 6. Exhaust pipe; 7. Collection box; 8. Cooling mechanism; 9. Sealing cover; 10. Sliding frame; 11. First screw; 12. Housing; 13. Sliding rod; 14. Spring; 15. U-shaped frame; 16. Drive motor; 17. Cam; 18. Fixed plate; 19. L-shaped plate; 20. Sieve plate; 21. Clamping plate; 22. Limiting plate; 23. Second screw; 24. Cooling pipe; 25. Support frame; 26. Water tank; 27. Refrigeration unit; 28. Water pump; 29. ​​Refrigeration pipe. DETAILED DESCRIPTION

[0029] In order to help those skilled in the art better understand the present invention, 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 embodiments described 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 making creative efforts should fall within the scope of protection of the present invention.

[0030] As described in the background technology, during traditional ginsenoside extraction, the ginseng raw materials are often processed into powder, and the powdered raw material particles may contain coarser and finer raw material particles. The coarse particles have a relatively large volume and a small surface area, and are relatively difficult to fully contact with the solvent, resulting in lower extraction efficiency than the fine particles, ultimately reducing the overall ginsenoside extraction efficiency. However, the above-mentioned device does not have a relevant structure for screening the raw materials.

[0031] In order to solve this technical problem, the utility model provides a rare ginsenoside anti-cancer active component extraction device, which is used for extracting rare ginsenoside anti-cancer active components.

[0032] Specifically, please refer to Figure 1-Figure 3 , the equipment for extracting rare ginsenoside anti-cancer active ingredients specifically includes:

[0033] The device base 1 has a controller 2 fixedly mounted on it, a heating plate 3 fixedly mounted on the top of the device base 1, a distillation tank 4 fixedly mounted on the top of the heating plate 3, the controller 2 and the heating plate 3 are electrically connected, a screening mechanism 5 is provided on the distillation tank 4, an air outlet pipe 6 is fixedly connected to the inner wall of the distillation tank 4, an end of the air outlet pipe 6 away from the distillation tank 4 is fixedly connected to a collecting box 7, and a cooling mechanism 8 is provided on the air outlet pipe 6;

[0034] The screening mechanism 5 includes a sealing cover 9, a sliding frame 10, a first screw 11, a connecting assembly, a driving assembly, and an installation assembly. The top of the distillation tank 4 is rotatably connected to the sealing cover 9, the inner wall of the sealing cover 9 is threadedly connected to the first screw 11, the first screw 11 is movably inserted in the distillation tank 4, and the inner wall of the distillation tank 4 is slidably connected to the sliding frame 10.

[0035] The rare ginsenoside anti-cancer active ingredient extraction equipment provided by the present invention can rotate the first screw 11 to make the first screw 11 leave the distillation tank 4, and then the sealing cover 9 can be opened, and the raw material can be put onto the sieve plate 20. The sieve plate 20 can make finer particles fall into the distillation tank 4 and block coarser particles, so that the raw material particles entering the distillation tank 4 are relatively fine and relatively uniform. The surface area of ​​relatively fine raw material particles is relatively larger and easier to contact with the solvent. Extracting relatively fine raw material particles helps to improve the subsequent overall extraction efficiency of ginsenosides, and by controlling the drive motor 16, the cam 17 can be driven to rotate accordingly, and the fixed plate 18 can be pushed by the cam 17, so that the springs 14 on both sides of the sliding frame 10 are deformed. After the cam 17 leaves the fixed plate 18, the sliding frame 10 can be moved to the initial position under the action of the elastic force of the spring 14, so that the sliding frame 10 and the sieve plate 20 vibrate, thereby improving the screening efficiency of the ginseng raw material and further improving the ginsenoside extraction efficiency.

[0036] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0037] Example 1:

[0038] Please refer to Figure 3-Figure 6 , a rare ginsenoside anticancer active ingredient extraction device, which includes:

[0039] The connecting component includes a sliding rod 13, and multiple sliding rods 13 are fixedly connected to the left and right sides of the sliding frame 10. The outer walls of the multiple sliding rods 13 are slidingly connected to the sleeves 12, and the multiple sleeves 12 are fixedly connected to the inner wall of the distillation tank 4. One end of the sliding rod 13 located inside the sleeve 12 is fixedly connected to a spring 14, and the end of the spring 14 away from the sliding rod 13 is fixedly connected to the inner wall of the sleeve 12. The springs 14 on both sides of the sliding frame 10 allow the sliding frame 10 to vibrate back and forth inside the distillation tank 4 and have a tendency to return to the initial position.

[0040] The driving assembly includes a U-shaped frame 15, the top of the distillation tank 4 is fixedly connected to the U-shaped frame 15, the top of the U-shaped frame 15 is fixedly installed with a driving motor 16, the output end of the driving motor 16 is fixedly connected to a cam 17, and the top of the sliding frame 10 is fixedly connected to a fixed plate 18 adapted to the cam 17. When the raised part of the cam 17 contacts the fixed plate 18, it squeezes the fixed plate 18, thereby pushing the sliding frame 10. When the raised part of the cam 17 leaves the fixed plate 18, the sliding frame 10 can vibrate under the action of the elastic force of the spring 14.

[0041] The mounting assembly includes an L-shaped plate 19 and a second screw 23. The inner wall of the sliding frame 10 is slidably connected to the left and right sides thereof, and a sieve plate 20 is fixedly connected between the two L-shaped plates 19. The tops of the two L-shaped plates 19 are fixedly connected to card plates 21, and the top of the sliding frame 10 and the front and rear sides of the two card plates 21 are fixedly connected to limiting plates 22, the inner wall of the limiting plate 22 is threadedly connected to the outer wall of the second screw 23, and the second screw 23 is movably inserted in the card plate 21. The second screw 23 can pass through the card plate 21 to limit the position of the L-shaped plate 19 and the sieve plate 20.

[0042] By the above structural design, the first screw 11 can be made to leave the distillation tank 4 by rotating the first screw 11, and then the sealing cover 9 can be opened, and the raw material can be put onto the sieve plate 20. By controlling the driving motor 16, the cam 17 can be driven to rotate accordingly, and then the fixed plate 18 can be pushed by the cam 17, so that the springs 14 on both sides of the sliding frame 10 are deformed accordingly. In this process, the slide rod 13 slides inside the corresponding housing 12, and then after the cam 17 leaves the fixed plate 18, the sliding frame 10 can be moved to the initial position under the action of the spring 14, so that the sliding frame 10 and the sieve plate 20 vibrate, and then the ginseng raw material continues to be screened. When the sieve plate 20 needs to be removed later, the two second screws 23 can be made to leave the card plate 21 by rotating the two second screws 23 respectively, and then the two card plates 21 can be pulled upward, and then the sieve plate 20 is driven to separate from the sliding frame 10 through the L-shaped plate 19, thereby completing the disassembly of the sieve plate 20.

[0043] Example 2:

[0044] The equipment for extracting the rare ginsenoside anticancer active ingredients provided in Example 1 was further optimized. Specifically, Figure 1-Figure 2 As shown, the cooling mechanism 8 includes a cooling pipe 24, the outer wall of the outlet pipe 6 is fixedly connected to the cooling pipe 24, the outer wall of the cooling pipe 24 is fixedly connected to the support frame 25, the bottom end of the support frame 25 is fixedly connected to the water tank 26, a refrigeration component 27 is fixedly installed on the water tank 26, a water pump 28 is fixedly installed on the top of the water tank 26, the water inlet pipe of the water pump 28 is fixedly connected to the inner wall of the water tank 26, and the water outlet pipe of the water pump 28 is fixedly connected to the inner wall of the cooling pipe 24, the refrigeration component 27 can cool the water inside the water tank 26, thereby improving the condensation effect of the gas in the outlet pipe 6.

[0045] The cooling mechanism 8 also includes a return pipe 29, which is fixedly connected to the inner wall of the cooling pipe 24. The return pipe 29 is wrapped around the outside of the outlet pipe 6. The end of the return pipe 29 away from the cooling pipe 24 is fixedly connected to the inner wall of the water tank 26. The end of the outlet pipe 6 located inside the cooling pipe 24 is spirally arranged. The return pipe 29 can guide the water that exchanges heat with the gas back into the water tank 26 to achieve water recycling.

[0046] Through the above-mentioned structural design, the water inside the water tank 26 can be transferred to the cooling pipe 24 by controlling the water pump 28. After the cooling pipe 24 is filled, the excess water can flow into the water tank 26 through the return pipe 29, and the distilled gas can flow to the collecting box 7 through the outlet pipe 6. During this process, it can be cooled and condensed when passing through the area surrounded by the cooling pipe 24, and then become liquid and flow into the collecting box 7. When the water that exchanges heat with the gas in the outlet pipe 6 flows into the water tank 26 through the return pipe 29, it can pass through the area wrapped around the outside of the outlet pipe 6, and thus pre-cool the gas inside the outlet pipe 6 before condensation.

[0047] The installation method, connection method or setting method of the rare ginsenoside anti-cancer active ingredient extraction equipment of the present invention are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects; the distillation tank 4, heating plate 3, controller 2, drive motor 16, water pump 28, and refrigeration component 27 of the rare ginsenoside anti-cancer active ingredient extraction equipment of the present invention are all purchased on the market, and technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in this field to make creative labor.

Claims

1. A device for extracting the anticancer active ingredients of rare ginsenosides, comprising a device base (1), characterized in that: A controller (2) is fixedly mounted on the device base (1), a heating plate (3) is fixedly mounted on the top of the device base (1), a distillation tank (4) is fixedly mounted on the top of the heating plate (3), the controller (2) and the heating plate (3) are electrically connected, a screening mechanism (5) is provided on the distillation tank (4), an air outlet pipe (6) is fixedly connected to the inner wall of the distillation tank (4), an end of the air outlet pipe (6) away from the distillation tank (4) is fixedly connected to a collecting box (7), and a cooling mechanism (8) is provided on the air outlet pipe (6); The screening mechanism (5) includes a sealing cover (9), a sliding frame (10), a first screw (11), a connecting assembly, a driving assembly, and a mounting assembly. The top of the distillation tank (4) is rotatably connected to the sealing cover (9), the inner wall of the sealing cover (9) is threadedly connected to the first screw (11), the first screw (11) is movably inserted into the distillation tank (4), and the inner wall of the distillation tank (4) is slidably connected to the sliding frame (10).

2. The equipment for extracting the rare ginsenoside anticancer active ingredients according to claim 1, characterized in that: The connecting assembly includes a sliding rod (13), and a plurality of sliding rods (13) are fixedly connected to the left and right sides of the sliding frame (10), and the outer walls of the plurality of sliding rods (13) are slidably connected to the casing (12), and the plurality of casings (12) are fixedly connected to the inner wall of the distillation tank (4). One end of the sliding rod (13) located inside the casing (12) is fixedly connected to a spring (14), and the end of the spring (14) away from the sliding rod (13) is fixedly connected to the inner wall of the casing (12).

3. The equipment for extracting rare ginsenoside anticancer active ingredients according to claim 1, characterized in that: The driving assembly includes a U-shaped frame (15), the top of the distillation tank (4) is fixedly connected to the U-shaped frame (15), the top of the U-shaped frame (15) is fixedly installed with a driving motor (16), the output end of the driving motor (16) is fixedly connected to a cam (17), and the top of the sliding frame (10) is fixedly connected to a fixing plate (18) adapted to the cam (17).

4. The equipment for extracting rare ginsenoside anticancer active ingredients according to claim 1, characterized in that: The mounting assembly comprises an L-shaped plate (19) and a second screw (23); the inner wall of the sliding frame (10) is slidably connected to the left and right sides thereof; a sieve plate (20) is fixedly connected between the two L-shaped plates (19); the tops of the two L-shaped plates (19) are fixedly connected to card plates (21); the top of the sliding frame (10) is fixedly connected to the front and rear sides thereof; a limiting plate (22) is fixedly connected to the inner wall of the limiting plate (22) and the outer wall of the second screw (23); and the second screw (23) is movably inserted into the card plate (21).

5. The equipment for extracting rare ginsenoside anticancer active ingredients according to claim 1, characterized in that: The cooling mechanism (8) comprises a cooling pipe (24), the outer wall of the air outlet pipe (6) is fixedly connected to the cooling pipe (24), the outer wall of the cooling pipe (24) is fixedly connected to a support frame (25), the bottom end of the support frame (25) is fixedly connected to a water tank (26), a refrigeration component (27) is fixedly installed on the water tank (26), a water pump (28) is fixedly installed on the top of the water tank (26), the water inlet pipe of the water pump (28) is fixedly connected to the inner wall of the water tank (26), and the water outlet pipe of the water pump (28) is fixedly connected to the inner wall of the cooling pipe (24).

6. The equipment for extracting the rare ginsenoside anticancer active ingredients according to claim 5, characterized in that: The cooling mechanism (8) further comprises a return pipe (29), the inner wall of the cooling pipe (24) being fixedly connected to the return pipe (29), the return pipe (29) being wound around the outside of the air outlet pipe (6), and one end of the return pipe (29) away from the cooling pipe (24) being fixedly connected to the inner wall of the water tank (26).

Images