Ceramic Evaporator for Creatine Monohydrate Production

Abstract

This invention provides a ceramic evaporator for the production of creatine monohydrate, relating to the field of ceramic evaporator technology. It includes a frame with a housing, which is composed of an upper end cap, a middle cylinder, and a lower end cap from top to bottom. The housing also includes an upper tube sheet, a lower tube sheet, heat exchange tubes, a heat exchange assembly, and a liquid distribution assembly. Both the upper and lower tube sheets are located inside the middle cylinder. The space between the upper and lower tube sheets forms a heating chamber. The space between the upper part of the upper tube sheet and the interior of the upper end cap forms a feed chamber. The space between the lower part of the lower tube sheet and the interior of the lower end cap forms a discharge chamber. Several heat exchange tubes are installed between the upper and lower tube sheets. The heat exchange assembly is located inside the heating chamber. The liquid distribution assembly is installed on the upper tube sheet. This invention solves the technical problem in related technologies where uneven liquid distribution by the liquid distributor makes it difficult for the liquid to form a stable and uniform liquid film on the inner wall of the heat exchange tubes, thus affecting heat exchange efficiency and increasing the risk of dry walls and scaling.

Description

Technical Field

[0001] This invention belongs to the field of ceramic evaporator technology, specifically, it relates to a ceramic evaporator for the production of creatine monohydrate. Background Technology

[0002] Creatine monohydrate is a common nutritional supplement with main benefits including improving muscle strength and endurance, promoting muscle recovery, enhancing physical fitness, promoting heart health, and protecting nerve cells. In the production of creatine monohydrate, sodium sarcosinate is first acidified with hydrochloric acid, followed by filtration to remove impurities. The filtered liquid is then concentrated and reacted with cyanamide to produce creatine monohydrate. The synthesized product then undergoes a crystallization process to form crystals. Solid-liquid separation is achieved through centrifugation, followed by drying of the separated wet crystals and sieving to obtain a product with uniform particle size. The sieved material then undergoes a metal detection process; after passing the inspection, it is packaged.

[0003] In the production of creatine monohydrate, which involves highly corrosive materials such as hydrochloric acid, a ceramic evaporator is typically used in the concentration step to address equipment corrosion and product contamination. This type of evaporation equipment, made of new ceramic materials such as silicon carbide, is commonly used in industrial production for concentration under harsh conditions such as high corrosion and high temperatures. However, in the evaporation and concentration process, the liquid distributor generally relies on gravity to distribute the liquid. This method easily leads to the liquid concentrating in the center of the heat exchange tubes rather than being evenly distributed around the inner wall, making it difficult to form a stable and uniform liquid film. This uneven liquid film directly affects heat exchange efficiency and increases the risk of dry walls and scaling, ultimately impacting the product quality and yield of creatine monohydrate. Summary of the Invention

[0004] The purpose of this invention is to provide a ceramic evaporator for the production of creatine monohydrate, which solves the technical problem in related technologies where uneven liquid distribution by the liquid distributor makes it difficult for the liquid to form a stable and uniform liquid film on the inner wall of the heat exchange tube, thereby affecting heat exchange efficiency and increasing the risk of dry walls and scaling.

[0005] At least one embodiment of the present invention provides a ceramic evaporator for the production of creatine monohydrate, including a frame on which a housing is mounted. The housing is composed of an upper end cap, a middle cylinder, and a lower end cap from top to bottom. The evaporator also includes: The liquid inlet connector and the liquid outlet connector are connected to the upper end cap, and the liquid outlet connector is connected to the bottom of the lower end cap. The upper tube sheet and the lower tube sheet are both located inside the middle cylinder. The space between the upper tube sheet and the lower tube sheet forms a heating chamber. The space between the upper part of the upper tube sheet and the interior of the upper head forms a feeding chamber. The space between the lower part of the lower tube sheet and the interior of the lower head forms a discharge chamber. A heat exchange tube is provided between the upper tube sheet and the lower tube sheet, and the heat exchange tube is made of ceramic material. A heat exchange assembly is disposed inside the heating chamber and is used to transfer heat to the raw material liquid through the heat exchange tube; A liquid distribution assembly is installed on the upper tube sheet and is used to feed the raw material liquid into the interior of several heat exchange tubes.

[0006] In order to heat the raw material liquid passing through the heat exchange tube, the heat exchange assembly includes an inlet connector and an outlet connector. The inlet connector is connected to the input end of the heating chamber, and the outlet connector is connected to the output end of the heating chamber. High-temperature steam enters the heating chamber through the inlet connector and is discharged through the outlet connector.

[0007] Furthermore, it also includes baffles. Several baffles are fixedly arranged at intervals inside the heating chamber along the axial direction of the central cylinder. When high-temperature steam enters the heating chamber through the inlet joint, it is guided by the baffles to flow along an S-shaped path to the exhaust joint.

[0008] To uniformly distribute the feed liquid into several heat exchange tubes, the liquid distribution assembly includes: Liquid distribution plate, which is coaxially and slidably disposed inside the middle cylinder, and located on the upper part of the upper tube sheet; Liquid distribution cylinders are arranged at intervals on the liquid distribution plate, and the liquid distribution cylinders correspond one-to-one with the heat exchange tubes. The liquid distribution mechanism is installed inside the upper end cap and is used to input the raw material liquid into the liquid distribution tray. The liquid distribution structure is provided on each of the liquid distribution cylinders to assist the raw material liquid in entering the heat exchange tube through the liquid distribution cylinder.

[0009] Furthermore, it also includes a female connector and a female connector. The input end of each heat exchange tube is coaxially connected to the female connector, and the bottom of each liquid distribution cylinder is coaxially connected to the female connector. Each female connector is coaxially fitted with a conical sealing ring. The female connector and the female connector are adapted to each other, and the conical sealing ring is sealed to the female connector.

[0010] According to an exemplary embodiment of this disclosure, a positioning ring is coaxially fixed inside the upper sealing head, and the bottom of the positioning ring is sealed and abuts against the upper part of the liquid distribution plate.

[0011] To allow the raw material liquid to flow into the distribution tray, the liquid distribution mechanism includes: The liquid distribution plate is coaxially arranged inside the upper end cap, and several liquid distribution cylinders are located inside the edge of the liquid distribution plate. A pull rod is connected to the top of the liquid distribution plate, and the top end of the pull rod is connected to the inner top wall of the upper end cap.

[0012] To ensure that the raw material liquid flows simultaneously into each distribution cylinder, the distribution structure includes: V-shaped grooves are provided on the top of each liquid distribution cylinder, and the bottom of the V-shaped grooves on each liquid distribution cylinder are on the same horizontal plane; An annular groove is coaxially formed inside each of the liquid distribution cylinders. The annular groove is located at the bottom of the V-shaped groove, and the opening of the annular groove is located inside the liquid distribution cylinder. The bottom of the annular groove is lower than the edge of the opening of the annular groove.

[0013] Furthermore, the edge of the annular groove is provided with several liquid guiding grooves at equal angles around the circumference, and the liquid guiding grooves are arranged at an angle.

[0014] Furthermore, it also includes spiral protrusions, with several spiral protrusions arranged coaxially at equal angles inside each of the liquid distribution cylinders, and the spiral protrusions are located at the bottom of the annular groove.

[0015] 1. Compared with the prior art, the ceramic evaporator for creatine monohydrate production provided in this embodiment of the invention, through the design of the female connector, the male connector, and the conical sealing ring, and the coaxial fixed positioning ring inside the upper head, so that the bottom of the positioning ring seals against the upper part of the liquid distribution plate to play an axial positioning role. When the male connector is inserted into the female connector, the conical sealing ring is radially squeezed to form a tight line contact seal, thereby achieving precise alignment and reliable sealing between the liquid distribution cylinder and the heat exchange tube, effectively preventing the leakage of corrosive liquid. At the same time, the positioning ring restricts the upward movement of the liquid distribution plate and ensures its horizontality, improving the overall uniformity of liquid distribution.

[0016] 2. Compared with the prior art, the ceramic evaporator for creatine monohydrate production provided in this embodiment of the invention, through the V-shaped groove opened at the top of the liquid distribution cylinder, since the bottom of each V-shaped groove is on the same horizontal plane, and the annular groove, the inclined liquid guiding groove and the spiral protrusion are arranged coaxially in sequence inside the liquid distribution cylinder, as the liquid level of the raw material liquid rises, the raw material liquid first overflows synchronously through the V-shaped groove, ensuring that the liquid inlet of each liquid distribution cylinder is consistent. The annular groove allows the liquid to flow out evenly through the inclined liquid guiding groove, which facilitates the formation of a liquid film on the inner wall of the liquid distribution cylinder. Under the action of the spiral protrusion, the uniformity of the liquid film is further improved, avoiding dry wall and flow deviation, and improving heat exchange efficiency and concentration quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a ceramic evaporator for producing creatine monohydrate provided in an embodiment of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of a ceramic evaporator for producing creatine monohydrate provided in an embodiment of the present invention; Figure 3 This is an embodiment of the present invention. Figure 1 A cross-sectional plan view of the assembly of the outer shell, inlet connector, outlet connector, upper tube sheet, lower tube sheet, heat exchange tubes, heat exchange components and liquid distribution components of the device. Figure 4 This is an embodiment of the present invention. Figure 1 A cross-sectional view of the liquid distribution assembly; Figure 5 This is an embodiment of the present invention. Figure 1 A cross-sectional structural diagram showing the assembly of the upper and middle end caps, liquid inlet connector, positioning ring, distribution plate, and pull rod; Figure 6 This is an embodiment of the present invention. Figure 1 A schematic diagram of the structure of the heat exchange tube, liquid distribution cylinder, female connector, female connector, and V-groove assembly; Figure 7 This is an embodiment of the present invention. Figure 1 A cross-sectional structural diagram of the heat exchange tube, liquid distribution cylinder, female connector, female connector, V-groove, and spiral protrusion fitting together; Figure 8 This is an embodiment of the present invention. Figure 1 A cross-sectional structural diagram of the heat exchange tube, liquid distribution cylinder, female connector, female connector, conical sealing ring, V-groove and spiral protrusion fitting together; Figure 9 For the present invention Figure 8 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Equipment frame; 2. Upper end cap; 3. Middle cylinder; 4. Lower end cap; 5. Liquid inlet connector; 6. Liquid outlet connector; 7. Upper tube sheet; 8. Lower tube sheet; 9. Heating chamber; 10. Feed chamber; 11. Discharge chamber; 12. Heat exchange tube; 101. Intake connector; 102. Exhaust connector; 103. Baffle plate; 201. Liquid distribution tray; 202. Liquid distribution cylinder; 203. Female connector; 204. Female connector; 205. Conical sealing ring; 206. Positioning ring; 207. Liquid distribution tray; 208. Pull rod; 209. V-groove; 210. Annular groove; 211. Liquid guiding groove; 212. Spiral protrusion. Detailed Implementation

[0020] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure. For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this disclosure will be explained and described below.

[0021] It should be understood that the described embodiments are merely some, not all, of the embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0022] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0023] It should be understood that the term "and / or" used in this article is merely a way of describing the logical relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0024] Depending on the context, the word "if" as used here can be interpreted as "when" or "when" or "in response to determination" or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination" or "in response to determination" or "when detection (of the stated condition or event)" or "in response to detection (of the stated condition or event)."

[0025] It should be understood that the terms "first," "second," etc., used in this disclosure are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0026] In the description of this disclosure, the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation of this disclosure.

[0027] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0028] like Figures 1 to 5 As shown, a ceramic evaporator for producing creatine monohydrate according to an embodiment of the present invention is illustrated. It includes a frame 1 with a housing mounted on it. The housing is composed of an upper end cap 2, a middle cylinder 3, and a lower end cap 4, arranged from top to bottom. It also includes an inlet connector 5, a drain connector 6, an upper tube sheet 7, a lower tube sheet 8, heat exchange tubes 12, heat exchange components, and a liquid distribution component. The upper end cap 2 is connected to the inlet connector 5, and the bottom of the lower end cap 4 is connected to the drain connector 6. The upper tube sheet 7 and the lower end cap 8 are connected to the drain connector 6. All tube sheets 8 are located inside the middle cylinder 3. The space between the upper tube sheet 7 and the lower tube sheet 8 forms the heating chamber 9. The space between the upper part of the upper tube sheet 7 and the interior of the upper head 2 forms the feed chamber 10. The space between the lower part of the lower tube sheet 8 and the interior of the lower head 4 forms the discharge chamber 11. Several heat exchange tubes 12 are installed between the upper tube sheet 7 and the lower tube sheet 8. The heat exchange tubes 12 are made of ceramic. The heat exchange assembly is located inside the heating chamber 9 and is used to transfer heat to the raw material liquid through the heat exchange tubes 12. The heat exchange assembly includes an air inlet connector 101 and an air outlet connector 102, such as... Figure 3As shown, the input end of the heating chamber 9 is connected to an air inlet connector 101, and the output end of the heating chamber 9 is connected to an exhaust connector 102. High-temperature steam enters the heating chamber 9 through the air inlet connector 101 and is discharged through the exhaust connector 102. It also includes baffles 103. Several baffles 103 are fixedly arranged at intervals along the axial direction of the central cylinder 3 inside the heating chamber 9. When high-temperature steam enters the heating chamber 9 through the air inlet connector 101, it is guided by several baffles 103 to flow along an S-shaped path to the exhaust connector 102.

[0029] In the production of creatine monohydrate, sodium sarcosinate is first acidified with hydrochloric acid, and then impurities are removed by filtration. The filtered liquid needs to be concentrated. At this time, the liquid is sent into the upper end cap 2 through the liquid inlet 5. Under the action of the liquid distribution assembly, the liquid enters the corresponding heat exchange tube 12 evenly. During this process, high-temperature steam is introduced into the heating chamber 9 through the air inlet 101. The steam flows along an S-shaped path in the heating chamber 9, thereby transferring the heat of the high-temperature steam to the heat exchange tube 12, thereby heating the raw material liquid flowing through the heat exchange tube 12. The steam after heat exchange is discharged from the exhaust vent 102.

[0030] After being heated, the raw material liquid enters the discharge chamber 11 from the output end of the heat exchange tube 12 and is discharged into the gas-liquid separator through the drain connector 6. The concentrated raw material liquid is separated from the steam therein, and then the separated concentrated raw material liquid is collected.

[0031] The concentrated raw material solution reacts with cyanamide to produce creatine monohydrate. The synthesized product then enters the crystallization process to form crystals. Solid-liquid separation is achieved through centrifugation, followed by drying of the separated wet crystals and sieving to obtain a product with uniform particle size. The sieved material then enters the metal detection stage. After passing the detection, it is packaged.

[0032] The liquid distribution assembly is installed on the upper tube sheet 7 and is used to separately input the raw material liquid into several heat exchange tubes 12. The liquid distribution assembly includes a liquid distribution plate 201, a liquid distribution cylinder 202, a liquid distribution mechanism, and a liquid distribution structure, such as... Figures 4 to 9As shown, the liquid distribution plate 201 is coaxially and slidably disposed inside the middle cylinder 3. The liquid distribution plate 201 is located on the upper tube sheet 7. A positioning ring 206 is coaxially fixed inside the upper end cap 2. The bottom of the positioning ring 206 is sealed and abutted against the upper part of the liquid distribution plate 201. Several liquid distribution cylinders 202 are arranged at intervals on the liquid distribution plate 201. Several liquid distribution cylinders 202 correspond one-to-one with several heat exchange tubes 12. A liquid distribution mechanism is installed inside the upper end cap 2 to input the raw material liquid into the liquid distribution plate 201. Each liquid distribution cylinder 202 is provided with a liquid distribution structure to assist the raw material liquid in entering the heat exchange tube 12 through the liquid distribution cylinder 202. It also includes a female connector 203 and a female connector 204. The input end of each heat exchange tube 12 is coaxially connected to a female connector 203, and the bottom of each liquid distribution cylinder 202 is coaxially connected to a female connector 204. Each female connector 204 is coaxially fitted with a conical sealing ring 205. The female connector 203 and the female connector 204 are adapted to each other, and the conical sealing ring 205 and the female connector 203 are sealed together.

[0033] When installing the liquid distribution plate 201, first place the liquid distribution plate 201 coaxially inside the middle cylinder 3, positioning it above the upper tube sheet 7. Several male connectors 204 at the bottom of the liquid distribution plate 201 correspond one-to-one with several female connectors 203 above the upper tube sheet 7. The male connectors 204 are then inserted into the female connectors 203. Since each male connector 204 is fitted with a conical sealing ring 205, when the male connector 204 is inserted into the female connector 203, the conical seal... The ring 205 is radially compressed, forming a tight seal with the inner wall of the mating head 203. Then, the upper end cap 2 is installed on the top of the middle cylinder 3. At this time, the positioning ring 206 on the upper end cap 2 abuts against the upper edge of the liquid distribution plate 201, thereby restricting the upward movement of the liquid distribution plate 201 and ensuring its horizontality. This can ensure that each liquid distribution cylinder 202 is precisely aligned with the corresponding heat exchange tube 12, and can also maintain a reliable seal under high temperature and alternating thermal stress using the conical sealing ring 205.

[0034] During the evaporation and concentration process, the feed liquid enters through the upper end cap 2, undergoes initial distribution by the liquid distribution mechanism, and then falls into the liquid distribution tray 201. The feed liquid level in the liquid distribution tray 201 continuously rises, and then flows into the liquid distribution cylinder 202 through the liquid distribution structure. Under the action of the liquid distribution structure, the feed liquid is evenly distributed around the inner wall of the cylinder to form a stable and uniform liquid film. This uniform liquid film improves heat exchange efficiency, reduces the risk of dry walls and scaling, and thus improves the product quality and yield of creatine monohydrate.

[0035] The liquid dispensing mechanism includes a dispensing plate 207 and a pull rod 208, such as Figure 5As shown, a liquid distribution plate 207 is coaxially arranged inside the upper head 2, and several liquid distribution cylinders 202 are located inside the edge of the liquid distribution plate 207. A pull rod 208 is connected to the top of the liquid distribution plate 207, and the top of the pull rod 208 is connected to the inner top wall of the upper head 2.

[0036] When the raw material liquid is fed into the upper end cap 2, it first flows to the upper surface of the distribution plate 207. The distribution plate 207 distributes the liquid evenly in all directions. Then, the raw material liquid overflows from the edge of the distribution plate 207 and drips into the distribution plate 201 below. This ensures that the liquid must pass through the distribution plate 207 before it can enter the distribution cylinder 202 and flow downwards. This not only eliminates air bubbles and turbulence during liquid feeding but also prevents the raw material liquid from directly entering the distribution cylinder 202, thus ensuring the heat exchange effect of the raw material liquid.

[0037] The liquid distribution structure includes a V-shaped groove 209 and an annular groove 210, such as Figures 6 to 9 As shown, each liquid distribution cylinder 202 has a V-shaped groove 209 at its top, and the bottom of the V-shaped groove 209 on each liquid distribution cylinder 202 is on the same horizontal plane. Each liquid distribution cylinder 202 has a coaxially formed annular groove 210 inside, located at the bottom of the V-shaped groove 209. The opening of the annular groove 210 is located inside the liquid distribution cylinder 202, and the bottom of the annular groove 210 is lower than the edge of its opening. The edge of the annular groove 210 has several liquid guiding grooves 211 formed at equal angles around its circumference, and these grooves are arranged at an angle. Figure 7 , Figure 8 As shown, it also includes spiral protrusions 212. Each liquid distribution cylinder 202 has several spiral protrusions 212 arranged coaxially at equal angles inside. The spiral protrusions 212 are located at the bottom of the annular groove 210.

[0038] When the raw material liquid flows into the distribution plate 201, as the liquid level rises, the raw material liquid first gathers at the V-shaped groove 209. Since the bottom of the V-shaped groove 209 is on the same horizontal plane, the liquid will overflow through all the V-shaped grooves 209 almost synchronously, thus ensuring that the liquid inflow of each distribution cylinder 202 is consistent. After passing through the V-shaped groove 209, the liquid enters the annular groove 210. The bottom of the annular groove 210 is lower than its opening edge, so a small amount of raw material liquid will be stored in the annular groove 210. The uniform static pressure generated by the liquid level difference makes the liquid flow downward at a stable flow rate through the inclined guide groove 211 at the edge of the annular groove 210. Since the guide groove 211 is circumferentially distributed at equal angles and inclined, its inclined direction guides the liquid to flow out tangentially along the inner wall of the distribution cylinder 202, thus forming a uniform liquid film on the inner wall of the distribution cylinder 202.

[0039] When the raw material liquid reaches the spiral protrusion 212 area, several spiral protrusions 212 are coaxially arranged at equal angles along the inner wall of the liquid distribution cylinder 202 and located at the bottom of the annular groove 210. When the liquid flows through the spiral protrusions 212, the spiral protrusions 212 can change the flow direction of the liquid, causing it to move downward along the spiral path, thereby further thinning the liquid film and distributing it evenly around the inner wall of the liquid distribution cylinder 202, so that the liquid enters the heat exchange tube 12 below in a uniform liquid film form.

[0040] During the production of creatine monohydrate, when the raw material solution needs to be concentrated, the solution is fed into the upper end cap 2 through the inlet connector 5. At this time, the raw material solution first flows to the upper surface of the distribution plate 207. The distribution plate 207 distributes the solution evenly in all directions. Then the raw material solution overflows from the edge of the distribution plate 207 and drips into the distribution plate 201 below. The solution must pass through the even distribution effect of the distribution plate 207 before it can enter the distribution cylinder 202 and flow downward.

[0041] As the raw material liquid level in the distribution plate 201 rises, the raw material liquid will accumulate at the V-shaped groove 209. Since the bottom of the V-shaped groove 209 is on the same horizontal plane, the liquid will overflow through all the V-shaped grooves 209 almost synchronously, thus ensuring that the liquid inlet of each distribution cylinder 202 is consistent. After passing through the V-shaped groove 209, the liquid enters the annular groove 210. The bottom of the annular groove 210 is lower than its opening edge, so a small amount of raw material liquid will be stored in the annular groove 210. The uniform static pressure generated by the liquid level difference will cause the liquid to flow downward at a stable flow rate through the inclined guide groove 211 at the edge of the annular groove 210. Since the guide groove 211 is circumferentially distributed at equal angles and inclined, its inclined direction guides the liquid to flow out tangentially along the inner wall of the distribution cylinder 202, thus forming a uniform liquid film on the inner wall of the distribution cylinder 202.

[0042] When the raw material liquid reaches the spiral protrusion 212 area, several spiral protrusions 212 are coaxially arranged at equal angles along the inner wall of the liquid distribution cylinder 202 and located at the bottom of the annular groove 210. When the liquid flows through the spiral protrusions 212, the spiral protrusions 212 can change the flow direction of the liquid, causing it to move downward along the spiral path, thereby further thinning the liquid film and distributing it evenly around the inner wall of the liquid distribution cylinder 202. This allows the liquid to enter the heat exchange tube 12 below in a uniform liquid film form. The uniform liquid film facilitates the improvement of heat exchange efficiency, reduces the risk of dry walls and scaling, and thus improves the product quality and yield of creatine monohydrate.

[0043] During the process of the raw material liquid entering the heat exchange tube 12 and flowing in the tube, high-temperature steam is introduced into the heating chamber 9 through the air inlet joint 101. At this time, the steam flows along an S-shaped path in the heating chamber 9, thereby transferring the heat of the high-temperature steam to the heat exchange tube 12, thereby heating the raw material liquid flowing in the heat exchange tube 12. After heat exchange, the steam is discharged from the exhaust joint 102.

[0044] After being heated, the raw material liquid enters the discharge chamber 11 from the output end of the heat exchange tube 12 and is discharged into the gas-liquid separator through the drain connector 6. The concentrated raw material liquid is separated from the vapor in it. Then, the concentrated raw material liquid reacts with monocyanamide to generate creatine monohydrate. It is then sent to the crystallization process to form crystals. After that, solid-liquid separation is achieved by centrifugation. The separated wet crystals are then dried, sieved, and tested in sequence until the creatine monohydrate is produced. After that, it is packaged.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ceramic evaporator for the production of creatine monohydrate, comprising a frame (1), wherein a device shell is provided on the frame (1), and the device shell is composed of an upper end cap (2), a middle cylinder (3), and a lower end cap (4) from top to bottom, characterized in that, Also includes: Liquid inlet connector (5) and liquid outlet connector (6), the upper end cap (2) is connected to the liquid inlet connector (5), and the bottom of the lower end cap (4) is connected to the liquid outlet connector (6). The upper tube sheet (7) and the lower tube sheet (8) are both located inside the middle cylinder (3). The space between the upper tube sheet (7) and the lower tube sheet (8) forms a heating chamber (9). The space between the upper part of the upper tube sheet (7) and the interior of the upper end cap (2) forms a feeding chamber (10). The space between the lower part of the lower tube sheet (8) and the interior of the lower end cap (4) forms a discharge chamber (11). Heat exchange tubes (12) are installed between the upper tube sheet (7) and the lower tube sheet (8), and the heat exchange tubes (12) are made of ceramic material; A heat exchange assembly is disposed inside the heating chamber (9) and is used to transfer heat to the raw material liquid through the heat exchange tube (12); Liquid distribution assembly, which is installed on the upper tube sheet (7), is used to input the raw material liquid into the interior of several heat exchange tubes (12).

2. The ceramic evaporator for creatine monohydrate production according to claim 1, characterized in that, The heat exchange assembly includes an air inlet connector (101) and an exhaust connector (102). The input end of the heating chamber (9) is connected to the air inlet connector (101), and the output end of the heating chamber (9) is connected to the exhaust connector (102). High-temperature steam enters the heating chamber (9) through the air inlet connector (101) and is discharged through the exhaust connector (102).

3. The ceramic evaporator for creatine monohydrate production according to claim 2, characterized in that, It also includes baffles (103). Several baffles (103) are fixedly arranged at intervals inside the heating chamber (9) along the axial direction of the middle cylinder (3). When high-temperature steam enters the heating chamber (9) through the air inlet (101), it is guided by several baffles (103) to flow along an S-shaped path to the exhaust inlet (102).

4. The ceramic evaporator for creatine monohydrate production according to claim 1, characterized in that, The liquid distribution assembly includes: Liquid distribution plate (201), the liquid distribution plate (201) is coaxially and slidably disposed inside the middle cylinder (3), the liquid distribution plate (201) is located on the upper part of the upper tube plate (7); Liquid distribution cylinder (202), a plurality of liquid distribution cylinders (202) are arranged at intervals on the liquid distribution plate (201), and the plurality of liquid distribution cylinders (202) correspond one-to-one with the plurality of heat exchange tubes (12); The liquid distribution mechanism is installed inside the upper end cap (2) to input the raw material liquid into the liquid distribution plate (201); Liquid distribution structure: Each liquid distribution cylinder (202) is provided with a liquid distribution structure to assist the raw material liquid in entering the heat exchange tube (12) through the liquid distribution cylinder (202).

5. The ceramic evaporator for creatine monohydrate production according to claim 4, characterized in that, It also includes a female connector (203) and a female connector (204). The input end of each heat exchange tube (12) is coaxially connected to the female connector (203), and the bottom of each liquid distribution cylinder (202) is coaxially connected to the female connector (204). Each female connector (204) is coaxially fitted with a conical sealing ring (205). The female connector (203) is adapted to the female connector (204), and the conical sealing ring (205) is sealed to the female connector (203).

6. The ceramic evaporator for creatine monohydrate production according to claim 5, characterized in that, The upper end cap (2) is coaxially fixed with a positioning ring (206) inside, and the bottom of the positioning ring (206) is sealed and abutted against the upper part of the liquid distribution plate (201).

7. The ceramic evaporator for creatine monohydrate production according to claim 4, characterized in that, The liquid separation mechanism includes: The liquid distribution plate (207) is coaxially arranged inside the upper end cap (2), and several liquid distribution cylinders (202) are located inside the edge of the liquid distribution plate (207); A pull rod (208) is connected to the top of the liquid distribution plate (207), and the top end of the pull rod (208) is connected to the inner top wall of the upper sealing head (2).

8. The ceramic evaporator for creatine monohydrate production according to claim 4, characterized in that, The liquid distribution structure includes: V-groove (209), each of the liquid distribution cylinders (202) has a V-groove (209) on its top, and the bottom of the V-groove (209) on each of the liquid distribution cylinders (202) is on the same horizontal plane; An annular groove (210) is coaxially provided inside each of the liquid distribution cylinders (202). The annular groove (210) is located at the bottom of the V-shaped groove (209). The opening of the annular groove (210) is located inside the liquid distribution cylinder (202). The bottom of the annular groove (210) is lower than the edge of the opening of the annular groove (210).

9. The ceramic evaporator for creatine monohydrate production according to claim 8, characterized in that, The annular groove (210) has several liquid guiding grooves (211) with equal angles around its edge, and the liquid guiding grooves (211) are arranged at an angle.

10. The ceramic evaporator for creatine monohydrate production according to claim 9, characterized in that, It also includes spiral protrusions (212), and each of the liquid distribution cylinders (202) has several spiral protrusions (212) arranged coaxially at equal angles inside, and the spiral protrusions (212) are located at the bottom of the annular groove (210).

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