Synthesis reaction kettle and synthesis process of guanidinoacetic acid

Abstract

The present invention relates to the technical field of guanidinoacetic acid preparation, and provides a guanidinoacetic acid synthesis reaction kettle and a synthesis process, the guanidinoacetic acid synthesis reaction kettle comprises a kettle body, a stirring and mixing mechanism arranged on the inner side of the kettle body, a driving motor fixedly mounted on the outer wall of the kettle body, and a catalyst storage screen frame arranged on the stirring and mixing mechanism, the stirring and mixing mechanism is used for storing a basic catalyst needed in the reaction process, the feeding mechanism can be driven through the stirring and mixing mechanism in the process of driving the stirring and mixing mechanism through the driving motor, and the quantitative discharging mechanism and the pressure relief assembly can be used for discharging the basic catalyst in the process of driving the feeding mechanism. A glycine material stored in the glycine material barrel can be indirectly and quantitatively conveyed into the kettle body through the stirring and mixing assembly, meanwhile, a cyanamide solution stored in the cyanamide material barrel can be indirectly and quantitatively conveyed into the kettle body through the cyanamide pouring assembly, and the stirring and mixing in the stirring and mixing mechanism are matched, so that the reaction can be more fully carried out; the reaction stability and uniformity are improved.

Description

Technical Field

[0001] This invention relates to the field of guanidinoacetic acid preparation technology, specifically to a synthesis reactor and synthesis process for guanidinoacetic acid. Background Technology

[0002] The synthesis of guanidinoacetic acid from cyanamide and glycine under alkaline conditions involves a significant side reaction: cyanamide polymerization. To reduce this polymerization, it's crucial to minimize the contact between cyanamide molecules during the reaction. A higher mixing intensity during the reaction reduces the likelihood of cyanamide polymerizing into dicyandiamide, which in turn improves the yield and purity of guanidinoacetic acid. However, conventional reactors typically increase mixing intensity by increasing stirring speed. Reaching a certain stirring speed places higher demands on the stirring device, and excessively high speeds decrease stability. Therefore, a guanidinoacetic acid production apparatus that improves reaction mixing intensity is disclosed in existing patent (publication number: CN215312383U). This invention further enhances the mixing intensity of cyanamide and glycine during the addition of cyanamide through an external circulation pipeline and mixer, thereby reducing the contact between cyanamide molecules, decreasing the likelihood of cyanamide polymerization into dicyandiamide, and increasing the efficiency of cyanamide conversion to guanidinoacetic acid. This results in improved purity and yield of the guanidinoacetic acid product. However, in the above scheme, since the reaction is carried out at high temperature and for a long time, the material volatilization will decrease during the reaction process, resulting in uneven material concentration in the reaction zone, which will affect the product yield. In addition, after glycine is added at once, its long time in the high temperature solution will lead to an increase in impurities in the guanidinoacetic acid product, and it is not conducive to the stable control of the entire reaction.

[0003] Furthermore, a search revealed an existing patent (publication number: CN209226885U) that discloses a guanidinoacetic acid production device, including a reaction vessel, a monocyanamide addition device, and a glycine addition device. The monocyanamide addition device includes pipes, valves, a flow controller, and a monocyanamide storage tank. The monocyanamide storage tank is connected to the reaction vessel via pipes, and valves and a flow controller are also installed on the pipes. The glycine addition device includes pipes, valves, a metering controller, and a glycine storage tank. The glycine storage tank is connected to the reaction vessel via pipes, and valves and a metering controller are also installed on the pipes. This utility model's guanidinoacetic acid production device connects the glycine storage tank to the reaction vessel via pipes. By installing valves and a metering controller on the pipes, the glycine reactant is controlled to enter the reaction vessel multiple times, thereby optimizing the operation of the reaction vessel and the production system. However, in the above solution, the addition of glycine and monocyanamide requires intermittent manual control, necessitating the coordination of various controllers for feeding. Furthermore, the stirring system and each feeding system are controlled independently, resulting in high equipment costs and cumbersome operation.

[0004] In view of this, the present invention proposes a reaction vessel and synthesis process for the synthesis of guanidinoacetic acid. Summary of the Invention

[0005] This invention proposes a synthesis reactor and process for guanidinoacetic acid, which solves the problems of intermittent manual control required for the addition of hydrocyanic acid and cyanamide in related technologies, the need for various controllers for feeding, and the separate control of the stirring system and each feeding system, resulting in high equipment cost and complicated and inconvenient operation.

[0006] The technical solution of the present invention is as follows: a synthesis reactor for guanidinoacetic acid, comprising: a reactor body and a support frame for supporting the reactor body, a stirring and mixing mechanism is provided on the inner side of the reactor body for stirring and mixing the reactants inside the reactor body, a drive motor for driving the stirring and mixing mechanism is fixedly installed on the outer wall of the reactor body, and a catalyst storage mesh frame is provided on the stirring and mixing mechanism for storing the alkaline catalyst required in the reaction process; A feeding mechanism is provided inside the vessel body located on the upper side of the stirring and mixing mechanism. During the process of driving the stirring and mixing mechanism by the drive motor, the feeding mechanism can be driven by the stirring and mixing mechanism. A glycine material cylinder and a cyanamide material cylinder are arranged above the reactor body. A bracket for supporting the glycine material cylinder and the cyanamide material cylinder is fixed to the top of the reactor body. A cyanamide pouring component is arranged between the cyanamide material cylinder and the reactor body. When the feeding mechanism is driven, the cyanamide solution stored in the cyanamide material cylinder can be indirectly and quantitatively transported into the reactor body through the cyanamide pouring component. A quantitative feeding mechanism and a pressure relief component are arranged between the glycine material cylinder and the reactor body. When the feeding mechanism is driven, the glycine material stored in the glycine material cylinder can be indirectly and quantitatively transported into the reactor body through the quantitative feeding mechanism and the pressure relief component. A condensing component is provided at the top of the vessel. During the feeding mechanism, the high-pressure gas inside the vessel can be transported to the inside of the condensing component for condensation through the pressure relief component.

[0007] Preferably, the feeding mechanism includes a first transmission gear and a second transmission gear meshing with the first transmission gear. A connecting rod is fixedly connected to the top of the second transmission gear. A hanging plate is rotatably sleeved on the outer wall of the connecting rod. One end of the hanging plate is fixedly connected to the inner wall of the vessel. A rotating disk is fixedly connected to the top of the connecting rod. A tray with an inclined top surface is fixedly connected to the top of the rotating disk. A rotating ball is rotatably sleeved inside the tray. A push-pull component is provided on the upper side of the rotating ball.

[0008] Preferably, the push-pull component includes two connecting plates, a rotating rod is fixedly connected between the two connecting plates, the rotating rod is rotatably connected inside the vessel body, two fixed seats are symmetrically fixed between the two connecting plates, a rotating cylinder is rotatably connected to the side of each of the two fixed seats that is close to each other, a disc frame is connected between the bottom of the two rotating cylinders, the disc frame is fixedly connected to the rotating ball, and a push-pull rod is rotatably connected between the ends of the two connecting plates, with a piston hinged to the bottom end of the push-pull rod.

[0009] Preferably, the cyanamide pouring assembly includes a first storage cylinder fixedly connected to the top of the reactor body, a piston slidably sleeved inside the first storage cylinder, an inlet pipe fixedly connected between the top of the first storage cylinder and the bottom of the cyanamide material cylinder, a one-way valve provided at the lower end of the inlet pipe, a drain pipe fixedly connected to the side wall of the first storage cylinder, the other end of the drain pipe extending into the interior of the reactor body, and a one-way valve provided at the upper end of the drain pipe.

[0010] Preferably, the pressure relief assembly includes a second storage cylinder fixedly connected to the top of the vessel body, a piston slidably sleeved inside the second storage cylinder, a limiting rope cylinder fixedly passing through the side wall of the second storage cylinder, a traction rope slidably sleeved inside the limiting rope cylinder, the bottom end of the traction rope being connected to the top end of the piston located inside the second storage cylinder, an exhaust pipe fixedly connected to the top of the second storage cylinder, an air inlet pipe fixedly connected to the side wall of the second storage cylinder, the bottom end of the air inlet pipe extending into the vessel body, and a one-way valve being provided at the port of the exhaust pipe and the air inlet pipe located inside the second storage cylinder.

[0011] Preferably, the condensing assembly is fixedly inserted into the condensing cylinder inside the reactor body, one end of the exhaust pipe extends to the inside of the condensing cylinder, and a serpentine coil is distributed inside the condensing cylinder. The two ends of the serpentine coil are respectively provided with a refrigerant outlet and a refrigerant inlet located on the outside of the condensing cylinder.

[0012] Preferably, the quantitative feeding mechanism includes a feeding cylinder that extends fixedly into the interior of the reactor body, a base plate that is fixedly connected to the top of the feeding cylinder, a leakage hole that communicates with the feeding cylinder that is opened through the interior of the base plate, a fixing ring that is fixedly connected to the top of the base plate, a bidirectional rotating ring that is rotatably connected to the top of the base plate located inside the fixing ring, a coil spring that is connected between the bidirectional rotating ring and the fixing ring, and one end of the traction rope that is connected to the upper side wall of the bidirectional rotating ring. The quantitative feeding mechanism also includes a one-way rotating ring rotatably connected to the bottom of the glycine material cylinder. A star-shaped material distribution frame is fixed inside the one-way rotating ring. The star-shaped material distribution frame includes multiple material distribution grooves arranged in a ring array to cooperate with the leakage hole. Multiple slots are arranged in a ring array on the outer wall of the one-way rotating ring. The inner wall of the two-way rotating ring is provided with ratchet teeth that cooperate with the slots.

[0013] Preferably, the stirring and mixing mechanism includes a rotating shaft rotatably connected to the inside of the vessel body. One end of the rotating shaft is fixedly connected to the end of the output shaft of the drive motor. The first transmission gear is fixedly sleeved on the outer wall of the rotating shaft. An installation cover is rotatably sleeved on the outer wall of the rotating shaft. The installation cover is fixedly connected to the inside of the vessel body by a fixing plate. A double-sided bevel gear disk is rotatably sleeved on the outer wall of the rotating shaft located inside the installation cover. Small bevel gears are meshed on both sides of the double-sided bevel gear disk. The small bevel gears are rotatably connected inside the installation cover.

[0014] Preferably, the stirring and mixing mechanism further includes two shafts respectively fixed inside the two small bevel gears, with stirring blades fixed to the outer wall of the shafts, the catalyst storage mesh frame being supported and fixed inside the reactor body by a rod, and a sleeve being fixedly sleeved inside the catalyst storage mesh frame, with the shafts passing through the inside of the sleeve and rotatably connected to the sleeve.

[0015] A process for synthesizing guanidinoacetic acid includes the following steps: Step 1: Pre-store cyanamide solution in the cyanamide material cylinder and glycine material in the glycine material cylinder. Store the solid base catalyst (KOH / Al2O3, etc.) required for the reaction inside the catalyst storage mesh frame. Turn on the power and start the drive motor. The drive motor drives the rotating shaft to rotate through its output shaft. The rotating shaft drives the double-sided bevel gear disk to rotate. The double-sided bevel gear disk drives two small bevel gears to rotate synchronously in opposite directions. The small bevel gears drive the stirring blades to rotate through the shaft. The two stirring blades rotating in different directions mix and stir the reactants inside the reactor, so that the reactants inside the reactor react with the assistance of the catalyst inside the catalyst storage mesh frame to produce guanidinoacetic acid. Step 2: During the process of the drive motor driving the rotating shaft to rotate, the rotating shaft drives the first transmission gear to rotate, the first transmission gear drives the second transmission gear to rotate, and the second transmission gear drives the rotating disk to rotate through the connecting rod. During the rotation of the rotating disk, the rotating ball is pushed and pulled by the tray, and the rotating ball rotates inside the tray. The rotating ball pushes and pulls the disc holder, causing the disc holder to drive the rotating cylinder to reciprocate on the fixed seat. The fixed seat pushes and pulls the connecting plate, causing the connecting plate to reciprocate through the rotating rod. Step 3: During the reciprocating swing of the connecting plate, the connecting plate pushes and pulls the piston up and down through the push-pull rod. As the piston moves down inside the first storage cylinder, the one-way valve at the inlet port opens and the one-way valve at the outlet port closes. The monocyanamide solution stored inside the monocyanamide material cylinder enters the first storage cylinder through the inlet pipe. Then, as the piston moves up, the monocyanamide solution inside the first storage cylinder is added to the inside of the reactor through the outlet pipe. Step 4: In Step 3, as the piston inside the first storage cylinder moves down or up, the piston inside the second storage cylinder will move up or down accordingly. When the piston inside the second storage cylinder moves down, the piston will pull the traction rope down, causing the traction rope to slide inside the limit rope cylinder. The traction rope pulls the bidirectional rotating ring, causing the bidirectional rotating ring to rotate at the top of the chassis and tighten the coil spring. During the clockwise rotation of the bidirectional rotating ring, the ratchet will rotate clockwise. The ratchet is inserted into the slot. The rotating ratchet rotates through the slot and rotates the unidirectional rotating ring, causing the unidirectional rotating ring to rotate the star-shaped material distribution frame. The material distribution groove on the star-shaped material distribution frame continuously slides over the material leakage hole. When passing through the material leakage hole, the glycine material in the material distribution groove of the star-shaped material distribution frame falls into the material discharge cylinder through the material leakage hole and is fed into the inside of the reactor body through the material discharge cylinder. Step 5: In step 4, when the piston inside the second storage cylinder moves upward, the traction rope loses the downward pull of the second storage cylinder. Under the action of the coil spring, the bidirectional rotating ring rotates counterclockwise to reset. At this time, the ratchet is squeezed by the slot and flips counterclockwise, which will not push the unidirectional rotating ring. That is, the unidirectional rotating ring remains stationary. It should be noted that one end of the ratchet is rotatably connected to the inner wall of the bidirectional rotating ring through a shaft and a torsion spring, and the ratchet can only flip in one direction. Step Six: As the piston moves downward inside the second storage cylinder, the one-way valve at the inlet port opens and the one-way valve at the outlet port closes. Some of the high-pressure gas generated by the reaction inside the reactor enters the second storage cylinder through the inlet pipe. Then, as the piston moves upward, the gas inside the second storage cylinder enters the condenser through the outlet pipe. At this time, cooling water or cold air flows inside the serpentine coil through the refrigerant outlet and refrigerant inlet, so that the gas entering the condenser can be condensed into liquid. Under the action of gravity, it flows back into the reactor through the lower port of the condenser.

[0016] The working principle and beneficial effects of this invention are as follows: In this invention, a stirring and mixing mechanism is provided inside the reactor body to stir and mix the reactants inside the reactor. A drive motor is fixedly installed on the outer wall of the reactor body to drive the stirring and mixing mechanism. A catalyst storage mesh frame is provided on the stirring and mixing mechanism to store the alkaline catalyst required for the reaction process. After the drive motor is started, the drive motor drives the rotating shaft to rotate through its output shaft. The rotating shaft drives the double-sided bevel gear disk to rotate, and the double-sided bevel gear disk drives two small bevel gears to rotate synchronously and in opposite directions. The small bevel gears drive the stirring blades to rotate through the shaft. The two stirring blades rotating in different directions mix and stir the reactants inside the reactor body, resulting in high stirring and mixing efficiency. Furthermore, the reaction rate is accelerated by the catalyst inside the catalyst storage mesh frame, which helps to accelerate the stirring and tumbling of the reactants inside the reactor body. Glycine and cyanamide react with a solid alkaline catalyst (KOH / Al2O3, etc.) to produce guanidinoacetic acid with high product purity. The solid alkaline catalyst can be reused and has a lifespan of over 1000 hours. No other cations are introduced into the mother liquor. For example, conventional catalysts (ammonia water) will introduce ammonium ions, which can extend the number of times the mother liquor can be reused and has high application value. In this invention, a feeding mechanism is provided inside the vessel body located above the stirring and mixing mechanism. During the process of driving the stirring and mixing mechanism by the drive motor, the feeding mechanism can be driven by the stirring and mixing mechanism. During the process of the feeding mechanism being driven, the glycine material stored in the glycine material cylinder can be indirectly and quantitatively transported into the vessel body through the quantitative feeding mechanism and the pressure relief component. At the same time, the monocyanamide solution stored in the monocyanamide material cylinder can also be indirectly and quantitatively transported into the vessel body through the monocyanamide pouring component. With the stirring and mixing in the stirring and mixing mechanism, the reaction can be carried out more fully, and the reaction stability and uniformity can be improved. In this invention, during the downward movement of the piston inside the second storage cylinder, some of the high-pressure gas generated by the reaction inside the reactor can enter the second storage cylinder through the inlet pipe. Then, as the piston moves upward, the gas inside the second storage cylinder enters the condenser cylinder through the exhaust pipe. At this time, cooling water or cold air flows inside the serpentine coil through the refrigerant outlet and refrigerant inlet, so that the gas entering the condenser cylinder can be condensed into liquid. Under the action of gravity, it flows back into the reactor through the lower port of the condenser cylinder for further recovery of cyanamide vapor. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a three-dimensional schematic diagram of a reaction vessel for the synthesis of guanidinoacetic acid according to the present invention; Figure 2 This is a schematic diagram of the inner structure of a reaction vessel for the synthesis of guanidinoacetic acid according to the present invention; Figure 3 This is a schematic diagram of the assembly structure of the feeding mechanism proposed in this invention; Figure 4 for Figure 3 Enlarged structural diagram at point C; Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 6 for Figure 3 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the bidirectional rotating ring assembly structure proposed in this invention; Figure 8 This is a schematic diagram of the internal planar structure of the condensation component proposed in this invention; In the picture: 1. Feeding mechanism; 101. First transmission gear; 102. Second transmission gear; 103. Connecting rod; 104. Hanging plate; 105. Rotary disc; 106. Rotating ball; 107. Tray; 108. Push-pull component; 1081. Disc frame; 1082. Rotating rod; 1083. Rotating cylinder; 1084. Connecting plate; 1085. Fixed base; 1086. Push-pull rod; 1087. Piston; 2. Mixing mechanism; 201. Fixing plate; 202. Rotating shaft; 203. Mounting cover; 204. Double-sided bevel gear disc; 205. Small bevel gear; 206. Shaft; 207. Mixing blade; 3. Drive motor; 4. Quantitative feeding mechanism; 401. Bidirectional rotating ring; 402. Fixed ring; 403. Coil spring; 404. Base plate; 4041. Material discharge hole; 405. Material discharge cylinder; 406. Slot; 407. Star-shaped material distribution frame; 408. Unidirectional rotating ring; 409. Ratchet; 5. Condensing assembly; 501. Condensing cylinder; 502. Refrigerant inlet; 503. Refrigerant outlet; 504. Snake coil; 6. Cyanamine material container; 7. Glycine material cylinder; 8. Cyanamine pouring assembly; 801. First storage cylinder; 802. Drain pipe; 803. Inlet pipe; 9. Pressure relief assembly; 901. Second storage cylinder; 902. Limiting rope cylinder; 903. Exhaust pipe; 904. Traction rope; 905. Air inlet pipe; 10. Support frame; 11. Kettle body; 12. Bracket; 13. Catalyst storage mesh frame; 14. Sleeve. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example

[0020] Please see Figure 1 and Figure 2 A reaction vessel for the synthesis of guanidinoacetic acid includes: a vessel body 11 and a support frame 10 for supporting the vessel body 11; a stirring and mixing mechanism 2 is provided inside the vessel body 11 for stirring and mixing the reactants inside the vessel body 11; a drive motor 3 for driving the stirring and mixing mechanism 2 is fixedly installed on the outer wall of the vessel body 11; and a catalyst storage mesh frame 13 is provided on the stirring and mixing mechanism 2 for storing the alkaline catalyst required in the reaction process.

[0021] Specifically, the stirring and mixing mechanism 2 includes a rotating shaft 202 rotatably connected to the inner side of the vessel body 11. One end of the rotating shaft 202 is fixedly connected to the end of the output shaft of the drive motor 3. A first transmission gear 101 is fixedly sleeved on the outer wall of the rotating shaft 202. An installation cover 203 is rotatably sleeved on the outer wall of the rotating shaft 202. The installation cover 203 is fixedly connected to the inner side of the vessel body 11 through a fixing plate 201. A double-sided bevel gear disk 204 is rotatably sleeved on the outer wall of the rotating shaft 202 located inside the installation cover 203. Small bevel gears 205 are meshed on both sides of the double-sided bevel gear disk 204. The small bevel gears 205 are rotatably connected inside the installation cover 203.

[0022] Furthermore, the stirring and mixing mechanism 2 also includes two shafts 206 respectively fixed inside the two small bevel gears 205. Stirring blades 207 are fixed to the outer wall of the shafts 206. The catalyst storage mesh frame 13 is fixed to the inner side of the vessel body 11 by the support of the rod. A sleeve 14 is fixedly sleeved inside the catalyst storage mesh frame 13. The shafts 206 pass through the inside of the sleeve 14 and are rotatably connected to the sleeve 14.

[0023] In this embodiment, a solid base catalyst (KOH / Al2O3, etc.) required for the reaction is stored inside the catalyst storage mesh frame 13. When the power is turned on, the drive motor 3 is started. The drive motor 3 drives the rotating shaft 202 to rotate through its output shaft. The rotating shaft 202 drives the double-sided bevel gear disk 204 to rotate. The double-sided bevel gear disk 204 drives two small bevel gears 205 to rotate synchronously in opposite directions. The small bevel gears 205 drive the stirring blades 207 to rotate through the shaft 206. The two stirring blades 207 rotating in different directions mix and stir the reactants inside the vessel 11, so that the reactants inside the vessel 11 react to generate guanidinoacetic acid with the assistance of the catalyst inside the catalyst storage mesh frame 13. Example

[0024] Please see Figure 1 and Figure 2 A synthesis reactor for guanidinoacetic acid, comprising all the contents of Example 1, wherein a feeding mechanism 1 is provided inside the reactor body 11 located on the upper side of the stirring and mixing mechanism 2, and the feeding mechanism 1 can be driven by the stirring and mixing mechanism 2 during the process of driving the stirring and mixing mechanism 2 by the drive motor 3.

[0025] Specifically, the feeding mechanism 1 includes a first transmission gear 101 and a second transmission gear 102 meshing with the first transmission gear 101. A connecting rod 103 is fixedly connected to the top of the second transmission gear 102. A hanging plate 104 is rotatably sleeved on the outer wall of the connecting rod 103. One end of the hanging plate 104 is fixedly connected to the inner wall of the vessel body 11. A rotating disk 105 is fixedly connected to the top of the connecting rod 103. A tray 107 with an inclined top surface is fixedly connected to the top of the rotating disk 105. A rotating ball 106 is rotatably sleeved inside the tray 107. A push-pull component 108 is provided on the upper side of the rotating ball 106.

[0026] Furthermore, the push-pull component 108 includes two connecting plates 1084, with a rotating rod 1082 fixedly connected between the two connecting plates 1084. The rotating rod 1082 is rotatably connected to the inside of the vessel body 11. Two fixed seats 1085 are symmetrically fixed between the two connecting plates 1084. A rotating cylinder 1083 is rotatably connected to the side of the two fixed seats 1085 that is close to each other. A disc holder 1081 is connected between the bottoms of the two rotating cylinders 1083. The disc holder 1081 is fixedly connected to the rotating ball 106. A push-pull rod 1086 is rotatably connected between the ends of the two connecting plates 1084. A piston 1087 is hinged to the bottom end of the push-pull rod 1086.

[0027] In this embodiment, during the process of the drive motor 3 driving the rotating shaft 202 to rotate, the rotating shaft 202 drives the first transmission gear 101 to rotate, the first transmission gear 101 drives the second transmission gear 102 to rotate, and the second transmission gear 102 drives the rotating disk 105 to rotate through the connecting rod 103. During the rotation of the rotating disk 105, the rotating ball 106 is pushed and pulled through the tray 107. The rotating ball 106 rotates inside the tray 107 and pushes and pulls the disc holder 1081, causing the disc holder 1081 to drive the rotating cylinder 1083 to reciprocate on the fixed seat 1085. The fixed seat 1085 pushes and pulls the connecting plate 1084, causing the connecting plate 1084 to reciprocate through the rotating rod 1082. The connecting plate 1084 pushes and pulls the piston 1087 through the push-pull rod 1086.

[0028] In this embodiment, a glycine material cylinder 7 and a cyanamide material cylinder 6 are arranged above the vessel body 11. A bracket 12 for supporting the glycine material cylinder 7 and the cyanamide material cylinder 6 is fixed to the top of the vessel body 11. A cyanamide pouring component 8 is arranged between the cyanamide material cylinder 6 and the vessel body 11. When the feeding mechanism 1 is driven, the cyanamide solution stored in the cyanamide material cylinder 6 can be indirectly and quantitatively transported into the vessel body 11 through the cyanamide pouring component 8. A quantitative feeding mechanism 4 and a pressure relief component 9 are arranged between the glycine material cylinder 7 and the vessel body 11. When the feeding mechanism 1 is driven, the glycine material stored in the glycine material cylinder 7 can be indirectly and quantitatively transported into the vessel body 11 through the quantitative feeding mechanism 4 and the pressure relief component 9.

[0029] Furthermore, the cyanamide pouring assembly 8 includes a first storage cylinder 801 fixedly connected to the top of the vessel body 11, a piston 1087 slidably sleeved inside the first storage cylinder 801, an inlet pipe 803 fixedly connected between the top of the first storage cylinder 801 and the bottom of the cyanamide material cylinder 6, a one-way valve provided at the lower end of the inlet pipe 803, a drain pipe 802 fixedly connected to the side wall of the first storage cylinder 801, the other end of the drain pipe 802 extending into the interior of the vessel body 11, and a one-way valve provided at the upper end of the drain pipe 802.

[0030] Furthermore, the pressure relief assembly 9 includes a second storage cylinder 901 fixedly connected to the top of the vessel body 11, a piston 1087 slidably sleeved inside the second storage cylinder 901, a limiting rope cylinder 902 fixedly passing through the side wall of the second storage cylinder 901, a traction rope 904 slidably sleeved inside the limiting rope cylinder 902, the bottom end of the traction rope 904 being connected to the top end of the piston 1087 located inside the second storage cylinder 901, an exhaust pipe 903 fixedly connected to the top of the second storage cylinder 901, an air inlet pipe 905 fixedly connected to the side wall of the second storage cylinder 901, the bottom end of the air inlet pipe 905 extending into the interior of the vessel body 11, and a one-way valve being provided at the port of the exhaust pipe 903 and the air inlet pipe 905 located inside the second storage cylinder 901.

[0031] In addition, the quantitative feeding mechanism 4 includes a feeding cylinder 405 that extends fixedly into the interior of the vessel body 11. A base plate 404 is fixedly connected to the top of the feeding cylinder 405. A leakage hole 4041 that communicates with the feeding cylinder 405 is opened through the interior of the base plate 404. A fixing ring 402 is fixedly connected to the top of the base plate 404. A bidirectional rotating ring 401 is rotatably connected to the top of the base plate 404 located inside the fixing ring 402. A coil spring 403 is connected between the bidirectional rotating ring 401 and the fixing ring 402. One end of the traction rope 904 is connected to the upper side wall of the bidirectional rotating ring 401. The quantitative feeding mechanism 4 also includes a one-way rotating ring 408 rotatably connected to the bottom of the glycine material cylinder 7. A star-shaped material distribution frame 407 is fixed inside the one-way rotating ring 408. The star-shaped material distribution frame 407 includes multiple material distribution grooves arranged in a ring array to cooperate with the material leakage hole 4041. Multiple slots 406 are arranged in a ring array on the outer wall of the one-way rotating ring 408. The inner wall of the two-way rotating ring 401 is provided with ratchet teeth 409 that cooperate with the slots 406.

[0032] In this embodiment, during the reciprocating swing of the connecting plate 1084, the connecting plate 1084 pushes and pulls the piston 1087 up and down through the push-pull rod 1086. As the piston 1087 moves down inside the first storage cylinder 801, the one-way valve at the inlet pipe 803 port opens and the one-way valve at the outlet pipe 802 port closes. The monocyanamide solution stored inside the monocyanamide material cylinder 6 enters the first storage cylinder 801 through the inlet pipe 803. Then, as the piston 1087 moves up, the monocyanamide solution inside the first storage cylinder 801 is added to the inside of the vessel body 11 through the outlet pipe 802.

[0033] In this embodiment, as the piston 1087 inside the first storage cylinder 801 moves down or up, the piston 1087 inside the second storage cylinder 901 will move up or down accordingly. When the piston 1087 inside the second storage cylinder 901 moves down, the piston 1087 pulls down the traction rope 904, causing the traction rope 904 to slide inside the limiting rope cylinder 902. The traction rope 904 pulls the bidirectional rotating ring 401, causing the bidirectional rotating ring 401 to rotate at the upper end of the chassis 404, tightening the coil spring 403. When the bidirectional rotating ring 401 rotates clockwise... During the operation, the ratchet 409 is driven to rotate clockwise. The ratchet 409 is inserted into the slot 406. The rotating ratchet 409 rotates the one-way rotating ring 408 through the slot 406, causing the one-way rotating ring 408 to drive the star-shaped material distribution frame 407 to rotate. This causes the material distribution groove on the star-shaped material distribution frame 407 to continuously slide over the material leakage hole 4041. When passing through the material leakage hole 4041, the glycine material in the material distribution groove of the star-shaped material distribution frame 407 falls into the material discharge cylinder 405 through the material leakage hole 4041, and is then fed into the inside of the reactor body 11 through the material discharge cylinder 405. When the piston 1087 inside the second storage cylinder 901 moves upward, the traction rope 904 loses the downward pull of the second storage cylinder 901. Under the action of the coil spring 403, the bidirectional rotating ring 401 rotates counterclockwise to reset. At this time, the ratchet 409 flips counterclockwise under the pressure of the slot 406, and will not push the unidirectional rotating ring 408. That is, the unidirectional rotating ring 408 remains stationary. It should be noted that one end of the ratchet 409 is rotatably connected to the inner wall of the bidirectional rotating ring 401 through a shaft and a torsion spring, and the ratchet 409 can only flip in one direction. Example

[0034] Please see Figure 1 and Figure 2 A synthesis reactor for guanidinoacetic acid, including all the contents of Example 2, is provided with a condensation component 5 at the top of the reactor body 11. During the process of the feeding mechanism 1 being driven, the high-pressure gas inside the reactor body 11 can be transported to the inside of the condensation component 5 for condensation through the pressure relief component 9.

[0035] Specifically, the condenser assembly 5 is fixedly inserted into the condenser cylinder 501 inside the vessel body 11. One end of the exhaust pipe 903 extends to the inside of the condenser cylinder 501. A serpentine coil 504 is distributed inside the condenser cylinder 501. The two ends of the serpentine coil 504 are respectively provided with a refrigerant outlet 503 and a refrigerant inlet 502 located on the outside of the condenser cylinder 501.

[0036] In this embodiment, as the piston 1087 moves downward inside the second storage cylinder 901, the one-way valve at the port of the inlet pipe 905 opens and the one-way valve at the port of the exhaust pipe 903 closes. Some of the high-pressure gas generated inside the reactor body 11 enters the second storage cylinder 901 through the inlet pipe 905. Then, as the piston 1087 moves upward, the gas inside the second storage cylinder 901 enters the condenser cylinder 501 through the exhaust pipe 903. At this time, cooling water or cold air flows through the refrigerant outlet 503 and the refrigerant inlet 502 inside the serpentine coil 504, so that the gas entering the condenser cylinder 501 can be condensed into liquid. Under the action of gravity, it flows back into the reactor body 11 through the lower port of the condenser cylinder 501.

[0037] Working principle and usage process: First, cyanamide solution is pre-stored in cyanamide material cylinder 6, glycine material is pre-stored in glycine material cylinder 7, and solid base catalyst (KOH / Al2O3, etc.) required for the reaction is stored inside catalyst storage mesh frame 13. Power is turned on and drive motor 3 is started. Drive motor 3 drives rotating shaft 202 to rotate through its output shaft. Rotating shaft 202 drives double-sided bevel gear disk 204 to rotate. Double-sided bevel gear disk 204 drives two small bevel gears 205 to rotate synchronously in opposite directions. Small bevel gears 205 drive stirring blades 207 to rotate through shaft 206. The two stirring blades 207 rotating in different directions mix and stir the reactants inside the reactor body 11, so that the reactants inside the reactor body 11 react to produce guanidinoacetic acid with the assistance of the catalyst inside catalyst storage mesh frame 13.

[0038] During the process of the drive motor 3 driving the rotating shaft 202 to rotate, the rotating shaft 202 drives the first transmission gear 101 to rotate, the first transmission gear 101 drives the second transmission gear 102 to rotate, and the second transmission gear 102 drives the rotating disk 105 to rotate through the connecting rod 103. During the rotation of the rotating disk 105, the tray 107 pushes and pulls the rotating ball 106, and the rotating ball 106 rotates inside the tray 107. The rotating ball 106 pushes and pulls the disc holder 1081, so that the disc holder 1081 drives the rotating cylinder 1083 to reciprocate on the fixed seat 1085, and pushes and pulls the connecting plate 1084 through the fixed seat 1085, so that the connecting plate 1084 reciprocates through the rotating cylinder 1083. During the reciprocating swing of the connecting plate 1084, the connecting plate 1084 pushes and pulls the piston 1087 up and down through the push-pull rod 1086. As the piston 1087 moves down inside the first storage cylinder 801, the one-way valve at the inlet pipe 803 port opens and the one-way valve at the outlet pipe 802 port closes. The monocyanamide solution stored inside the monocyanamide material cylinder 6 enters the first storage cylinder 801 through the inlet pipe 803. Then, as the piston 1087 moves up, the monocyanamide solution inside the first storage cylinder 801 is added to the inside of the vessel body 11 through the outlet pipe 802.

[0039] Meanwhile, as the piston 1087 inside the first storage cylinder 801 moves down or up, the piston 1087 inside the second storage cylinder 901 will move up or down accordingly. When the piston 1087 inside the second storage cylinder 901 moves down, it pulls the traction rope 904 down, causing the traction rope 904 to slide inside the limiting rope cylinder 902. The traction rope 904 pulls the bidirectional rotating ring 401, causing it to rotate on the upper end of the chassis 404, tightening the coil spring 403. As the bidirectional rotating ring 401 rotates clockwise... During the process, the ratchet 409 is driven to rotate clockwise. The ratchet 409 is inserted into the slot 406. The rotating ratchet 409 rotates the one-way rotating ring 408 through the slot 406, which causes the one-way rotating ring 408 to drive the star-shaped material distribution frame 407 to rotate. This causes the material distribution groove on the star-shaped material distribution frame 407 to continuously slide over the material leakage hole 4041. When passing through the material leakage hole 4041, the glycine material in the material distribution groove of the star-shaped material distribution frame 407 falls into the material discharge cylinder 405 through the material leakage hole 4041, and is then fed into the inside of the reactor body 11 through the material discharge cylinder 405. When the piston 1087 inside the second storage cylinder 901 moves upward, the traction rope 904 loses the downward pull of the second storage cylinder 901. Under the action of the coil spring 403, the bidirectional rotating ring 401 rotates counterclockwise to reset. At this time, the ratchet 409 flips counterclockwise under the pressure of the slot 406, and will not push the unidirectional rotating ring 408. That is, the unidirectional rotating ring 408 remains stationary. It should be noted that one end of the ratchet 409 is rotatably connected to the inner wall of the bidirectional rotating ring 401 through a shaft and a torsion spring, and the ratchet 409 can only flip in one direction.

[0040] As the piston 1087 moves downward inside the second storage cylinder 901, the one-way valve at the inlet pipe 905 opens and the one-way valve at the outlet pipe 903 closes. Some of the high-pressure gas generated inside the reactor body 11 enters the second storage cylinder 901 through the inlet pipe 905. Then, as the piston 1087 moves upward, the gas inside the second storage cylinder 901 enters the condenser cylinder 501 through the outlet pipe 903. At this time, cooling water or cold air flows through the refrigerant outlet 503 and the refrigerant inlet 502 inside the serpentine coil 504, so that the gas entering the condenser cylinder 501 can be condensed into liquid. Under the action of gravity, it flows back into the reactor body 11 through the lower port of the condenser cylinder 501.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A synthesis reactor for guanidinoacetic acid, comprising: A kettle body (11) and a support frame (10) for supporting the kettle body (11), characterized in that a stirring and mixing mechanism (2) is arranged inside the kettle body (11) for stirring and mixing reactants inside the kettle body (11), a driving motor (3) for driving the stirring and mixing mechanism (2) is fixedly mounted on the outer wall of the kettle body (11), and a catalyst storage mesh frame (13) is arranged on the stirring and mixing mechanism (2) for storing alkaline catalyst required during the reaction process; A feeding mechanism (1) is arranged inside the kettle body (11) located on the upper side of the stirring and mixing mechanism (2), and when the stirring and mixing mechanism (2) is driven by the driving motor (3), the feeding mechanism (1) can be driven by the stirring and mixing mechanism (2); A glycine material cylinder (7) and a cyanamide material cylinder (6) are arranged above the kettle body (11); a bracket (12) for supporting the glycine material cylinder (7) and the cyanamide material cylinder (6) is fixedly connected to the top of the kettle body (11); a cyanamide pouring assembly (8) is arranged between the cyanamide material cylinder (6) and the kettle body (11); during the driving of the feeding mechanism (1), the cyanamide solution stored in the cyanamide material cylinder (6) can be indirectly and quantitatively transported to the inside of the kettle body (11) through the cyanamide pouring assembly (8); and a quantitative unloading mechanism (4) and a pressure relief assembly (9) are arranged between the glycine material cylinder (7) and the kettle body (11); during the driving of the feeding mechanism (1), the glycine material stored in the glycine material cylinder (7) can be indirectly and quantitatively transported to the inside of the kettle body (11) through the quantitative unloading mechanism (4) and the pressure relief assembly (9); A condensation component (5) is provided at the top of the kettle body (11), and when the feeding mechanism (1) is driven, the high-pressure gas inside the kettle body (11) can be transported to the inside of the condensation component (5) through the pressure relief component (9) for condensation.

2. A synthesis reactor of guanidine acetic acid according to claim 1, characterized in that, The feeding mechanism (1) comprises a first transmission gear (101) and a second transmission gear (102) meshing with the first transmission gear (101); a connecting rod (103) is fixedly connected to the top end of the second transmission gear (102); a hanging plate (104) is rotatably sleeved on the outer wall of the connecting rod (103); one end of the hanging plate (104) is fixedly connected to the inner wall of the kettle body (11); a rotating disk (105) is fixedly connected to the top end of the connecting rod (103); a tray (107) with an inclined top surface is fixedly connected to the top end of the rotating disk (105); a rotating ball (106) is rotatably sleeved inside the tray (107); a push-pull component (108) is provided on the upper side of the rotating ball (106).

3. A synthesis reactor of guanidine acetic acid according to claim 2, characterized in that, The push-pull component (108) comprises two connecting plates (1084), a rotating rod (1082) is fixedly connected between the two connecting plates (1084), the rotating rod (1082) is rotatably connected to the inside of the kettle body (11), two fixed seats (1085) are symmetrically fixedly connected between the two connecting plates (1084), a rotating cylinder (1083) is rotatably connected to the sides of the two fixed seats (1085) close to each other, a disc rack (1081) is connected to the bottom of the two rotating cylinders (1083), the disc rack (1081) is fixedly connected to the rotating ball (106), a push-pull rod (1086) is rotatably connected between the ends of the two connecting plates (1084), and a piston (1087) is hinged at the bottom of the push-pull rod (1086).

4. A synthesis reactor of guanidine acetic acid according to claim 3, characterized in that, The cyanamide pouring assembly (8) comprises a first material storage barrel (801) fixedly connected to the top of the kettle body (11), the piston (1087) being slidably sleeved on the inner side of the first material storage barrel (801), a liquid inlet pipe (803) being fixedly connected between the top of the first material storage barrel (801) and the bottom of the cyanamide material barrel (6), a one-way valve being provided at the lower end of the liquid inlet pipe (803), a liquid discharge pipe (802) being fixedly connected to the side wall of the first material storage barrel (801), the other end of the liquid discharge pipe (802) extending into the interior of the kettle body (11), and a one-way valve being provided at the upper end of the liquid discharge pipe (802).

5. A synthesis reactor of guanidine acetic acid according to claim 4, characterized in that, The pressure relief assembly (9) comprises a second material storage barrel (901) fixedly connected to the top end of the kettle body (11); the piston (1087) is slidably sleeved on the inner side of the second material storage barrel (901); a limit rope drum (902) is fixedly penetrated through the side wall of the second material storage barrel (901); a traction rope (904) is slidably sleeved inside the limit rope drum (902); the bottom end of the traction rope (904) is connected to the top end of the piston (1087) located on the inner side of the second material storage barrel (901); the top end of the second material storage barrel (901) is fixedly connected to an exhaust pipe (903); the side wall of the second material storage barrel (901) is fixedly connected to an air intake pipe (905); the bottom end of the air intake pipe (905) extends into the interior of the kettle body (11); and one-way valves are provided at the ports of the exhaust pipe (903) and the air intake pipe (905) located on the inner side of the second material storage barrel (901).

6. A synthesis reactor of guanidine acetic acid according to claim 5, characterized in that, The condensing assembly (5) is fixedly inserted into the condensing cylinder (501) inside the kettle body (11), and one end of the exhaust pipe (903) extends to the inside of the condensing cylinder (501). A serpentine coil (504) is distributed inside the condensing cylinder (501), and two ends of the serpentine coil (504) are respectively provided with a refrigerant outlet (503) and a refrigerant inlet (502) arranged on the outside of the condensing cylinder (501).

7. A synthesis reactor for guanidine acetic acid according to claim 6, characterized in that: The quantitative unloading mechanism (4) comprises a material unloading cylinder (405) fixedly extending into the interior of the kettle body (11); the top of the material unloading cylinder (405) is fixedly connected to a bottom plate (404); a material leakage hole (4041) connected to the material unloading cylinder (405) is formed through the bottom plate (404); the top of the bottom plate (404) is fixedly connected to a fixing ring (402); the top of the bottom plate (404) located inside the fixing ring (402) is rotatably connected to a two-way rotating ring (401); a coil spring (403) is connected between the two-way rotating ring (401) and the fixing ring (402); and one end of the traction rope (904) is connected to the upper side wall of the two-way rotating ring (401); The quantitative feeding mechanism (4) further comprises a one-way rotating ring (408) rotatably connected to the bottom end of the glycine material barrel (7), a star-shaped material distribution frame (407) being fixedly connected inside the one-way rotating ring (408), the star-shaped material distribution frame (407) comprising a plurality of material distribution grooves distributed in a circular array and cooperating with the material leakage hole (4041), a plurality of slots (406) being arranged in a circular array on the outer wall of the one-way rotating ring (408), and a ratchet (409) cooperating with the slots (406) being arranged on the inner wall of the two-way rotating ring (401).

8. A synthesis reactor for guanidine acetic acid according to claim 7, characterized in that, The stirring and mixing mechanism (2) comprises a rotating shaft (202) rotatably connected to the inner side of the kettle body (11); one end of the rotating shaft (202) is fixedly connected to the end of the output shaft of the driving motor (3); the first transmission gear (101) is fixedly sleeved on the outer wall of the rotating shaft (202); a mounting cover (203) is rotatably sleeved on the outer wall of the rotating shaft (202); the mounting cover (203) is fixedly connected to the inner side of the kettle body (11) via a fixing plate (201); a double-sided bevel gear disc (204) is rotatably sleeved on the outer wall of the rotating shaft (202) located inside the mounting cover (203); small bevel gears (205) are meshedly connected to both sides of the double-sided bevel gear disc (204); and the small bevel gear (205) is rotatably connected to the inside of the mounting cover (203).

9. A synthesis reactor for guanidine acetic acid according to claim 8, characterized in that: The stirring and mixing mechanism (2) further comprises two shafts (206) respectively fixed to the inside of the two small bevel gears (205); the outer wall of the shaft (206) is fixedly connected with a stirring blade (207); the catalyst storage mesh frame (13) is fixed to the inner side of the kettle body (11) through a rod support; a sleeve (14) is fixedly sleeved inside the catalyst storage mesh frame (13); the shaft (206) passes through the inside of the sleeve (14) and is rotatably connected to the sleeve (14).

10. A synthesis process of guanidinoacetic acid, using the synthesis reactor of guanidinoacetic acid as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: pre-store a cyanamide solution in a cyanamide material cylinder (6), pre-store a glycine material in a glycine material cylinder (7), store a solid base catalyst (KOH / Al2O3, etc.) required for the reaction inside a catalyst storage mesh frame (13), turn on the power supply, start the drive motor (3), the drive motor (3) drives the rotating shaft (202) to rotate through its output shaft, the rotating shaft (202) drives the double-sided bevel gear plate (204) to rotate, the double-sided bevel gear plate (204) drives two small bevel gears (205) to rotate synchronously in opposite directions, the small bevel gear (205) drives the stirring blade (207) to rotate through the shaft (206), and the reactants inside the kettle body (11) are mixed and stirred by the two stirring blades (207) rotating in different directions, so that the reactants inside the kettle body (11) react to generate guanidinoacetic acid with the assistance of the catalyst inside the catalyst storage mesh frame (13); Step 2: When the driving motor (3) drives the rotating shaft (202) to rotate, the rotating shaft (202) drives the first transmission gear (101) to rotate, the first transmission gear (101) drives the second transmission gear (102) to rotate, the second transmission gear (102) drives the rotating disk (105) to rotate via the connecting rod (103), and when the rotating disk (105) rotates, the rotating ball (106) is pushed and pulled via the tray (107), the rotating ball (106) rotates inside the tray (107), the rotating ball (106) pushes and pulls the dish rack (1081), so that the dish rack (1081) drives the rotating drum (1083) to reciprocate on the fixed seat (1085), and pushes and pulls the connecting plate (1084) via the fixed seat (1085), so that the connecting plate (1084) reciprocates and swings via the rotating rod (1082); Step 3: During the reciprocating swing of the connecting plate (1084), the connecting plate (1084) pushes and pulls the piston (1087) up and down via the push-pull rod (1086). During the downward movement of the piston (1087) inside the first storage barrel (801), the one-way valve at the end of the liquid inlet pipe (803) is opened, and the one-way valve at the end of the liquid discharge pipe (802) is closed. The cyanamide solution stored inside the cyanamide material barrel (6) enters the first storage barrel (801) through the liquid inlet pipe (803). Afterwards, as the piston (1087) moves upward, the cyanamide solution inside the first storage barrel (801) is added to the inner side of the kettle body (11) through the liquid discharge pipe (802); Step 4. In step 3, when the piston (1087) inside the first storage barrel (801) moves down or up, the piston (1087) inside the second storage barrel (901) moves up or down accordingly. When the piston (1087) inside the second storage barrel (901) moves down, the piston (1087) pulls down the traction rope (904), causing the traction rope (904) to slide inside the limiting rope barrel (902). The traction rope (904) pulls the two-way swivel (401), causing the two-way swivel (401) to rotate on the upper end of the chassis (404), tightening the coil spring (403) and rotating the two-way swivel (401) clockwise. During the rotation, the ratchet (409) is driven to revolve clockwise. The ratchet (409) is inserted into the slot (406). The revolving ratchet (409) revolves the one-way rotating ring (408) through the slot (406), so that the one-way rotating ring (408) drives the star-shaped material distribution rack (407) to rotate, so that the material distribution trough on the star-shaped material distribution rack (407) continuously slides over the upper side of the material leakage hole (4041). When passing through the material leakage hole (4041), the glycine material in the material distribution trough of the star-shaped material distribution rack (407) falls into the material discharge barrel (405) through the material leakage hole (4041), and is added into the interior of the kettle body (11) through the material discharge barrel (405); Step 5. In step 4, when the piston (1087) inside the second material storage barrel (901) moves upward, the traction rope (904) loses the downward pull of the second material storage barrel (901), and under the action of the coil spring (403), the two-way swivel (401) rotates counterclockwise to reset. At this time, the ratchet (409) is squeezed by the slot (406) and turns counterclockwise, and will not push the one-way swivel (408), that is, the one-way swivel (408) remains stationary. It should be noted that one end of the ratchet (409) is rotatably connected to the inner wall of the two-way swivel (401) through a shaft and a torsion spring, and the ratchet (409) can only turn in one direction; Step six, when the piston (1087) on the inner side of the second storage barrel (901) moves downward, the one-way valve at the port of the air inlet pipe (905) opens, and the one-way valve at the port of the exhaust pipe (903) closes. Part of the high-pressure gas generated by the reaction inside the kettle body (11) enters the second storage barrel (901) through the air inlet pipe (905). Then, as the piston (1087) moves upward, the gas inside the second storage barrel (901) enters the condensing barrel (501) through the exhaust pipe (903). At this time, cooling water or cold air flows inside the serpentine coil (504) through the refrigerant outlet (503) and the refrigerant inlet (502), so that the gas entering the condensing barrel (501) can be condensed into liquid, and under the action of gravity, it flows back to the kettle body (11) through the lower port of the condensing barrel (501).

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