Concentration device for extracting taurine from oysters and use method of concentration device

Abstract

The present invention relates to the technical field of oyster taurine extraction, and discloses a concentration device for oyster taurine extraction, the concentration device comprises a support frame and three concentration tanks arranged on the support frame, a gas-liquid separation tank is fixed in the support frame, a controller is fixed in the support frame, a liquid conveying assembly is fixed below the concentration tanks, and the liquid conveying assembly is connected with the gas-liquid separation tank and the controller. A steam conveying assembly is fixed on the outer wall of the concentration tank, and the gear vacuum pump is fixed on the inner side of the support frame and is used for carrying out vacuum work on the concentration tank; one end of the vacuum distribution pipe is fixed on the gear vacuum pump; large negative pressure is generated in the evaporation pipe, and the boiling temperature of mother liquor in the evaporation pipe is reduced along with increase of the negative pressure, so that energy consumption in the evaporation process is reduced; the evaporation pipe is in a negative pressure state, and the negative pressure is beneficial to pushing mother liquor to flow, reducing the thickness of a liquid film in the heating pipe and ensuring that liquid is uniformly heated, so that the viscosity of the mother liquor and the evaporation concentration efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oyster taurine extraction, and specifically relates to a concentration device for oyster taurine extraction and its usage method. Background Art

[0002] Common evaporation equipment is widely used in industries such as chemical engineering, pharmaceuticals, and food processing, especially suitable for the concentration treatment of liquids. Its working principle is to evenly distribute the liquid to the inner wall of the evaporation tube through a distributor by means of a heat exchange process, forming a thin film and flowing down along the tube wall. During the heating process, a part of the liquid evaporates into steam, thereby concentrating the liquid. However, there are also certain limitations in the application of evaporation equipment, especially when dealing with high-viscosity liquids. The flow characteristics of high-viscosity liquids are different from those of low-viscosity liquids. Their flow velocity in the evaporation tube is slower, resulting in uneven formation of the liquid film, and even possibly becoming too thick, thus affecting the heat transfer efficiency and overall performance of the evaporator.

[0003] High-viscosity liquids usually have strong rheological properties, poor fluidity, and it is difficult to form a uniform thin film on the tube wall. The liquid needs to flow evenly on the inner wall of the tube to ensure that heat can be fully transferred to the liquid surface and promote evaporation. If the liquid viscosity is too high, the flow velocity slows down, the thickness of the liquid film increases, which not only reduces the evaporation efficiency, but also may lead to uneven heat exchange process, and even incomplete evaporation. In addition, the thicker liquid film is also prone to scaling on the inner wall of the evaporation tube, further affecting the operation efficiency and service life of the equipment. Summary of the Invention

[0004] The present invention provides a concentration device for oyster taurine extraction and its usage method. By generating a large negative pressure in the evaporation tube, the fluidity of the liquid is effectively optimized. Especially when dealing with high-viscosity mother liquor, the introduction of negative pressure improves the flow of high-viscosity liquid, avoiding the formation of an overly thick liquid film in a conventional evaporator, which leads to low heat transfer efficiency; the negative pressure can promote the flow of the mother liquor along the evaporation tube wall, reduce the viscosity of the viscous liquid, and effectively improve the evaporation efficiency.

[0005] To solve the above technical problems, the technical solution of the present invention is as follows: In a first aspect, a concentration device for oyster taurine extraction includes: a support frame and three concentration tanks arranged on the support frame. A gas-liquid separation tank is fixed inside the support frame, a controller is fixed inside the support frame, a liquid delivery component is fixed below the concentration tank, a steam delivery component is fixed on the outer wall of the concentration tank, and further includes: A gear vacuum pump, fixed inside the support frame, for performing vacuum work on the concentration tank; a vacuum distribution pipe, one end of which is fixed on the gear vacuum pump; a vacuum loop pipe, one end of which is fixed on the concentration tank and the other end is fixed on the other end of the vacuum distribution pipe; The vacuum valve body is fixed on the vacuum ring pipe. There is an upper valve core inside, and a lower valve core inside. The upper valve core is located above the lower valve core and is used to adjust the opening and closing to match the power output of the gear vacuum pump. The vacuum trigger tube has both ends fixed on the concentration tank. There is a positioning plate fixed inside, and an air piston and a hydraulic piston slide inside. The steam power pipe is fixed inside the concentration tank. The dirt scraping plate slides vertically on the steam power pipe. The dirt scraping rings are fixed at both ends of the dirt scraping plate and are used to scrape off dirt. The steam water tank is fixed above the support frame and is used to collect steam condensate.

[0006] Furthermore, the steam delivery assembly includes: The externally supplied steam pipe is located inside the support frame. One end of the steam circulation pipe is fixed above the gas-liquid separation tank. The three-joint pipe is fixed on the externally supplied steam pipe and the other end of the steam circulation pipe. A first steam electric valve is fixed at both the end close to the externally supplied steam pipe and the end close to the steam circulation pipe. The circulating pump has its base fixed on the outside of the gas-liquid separation tank, and its working end is fixedly installed on the steam circulation pipe. The steam ring pipe has its annular end fixed above the concentration tank, and a second steam electric valve is fixed at the non-annular end of the steam ring pipe. One end of the return pipe is fixed on the non-annular end of the steam ring pipe, and a one-way valve is fixed at the other end. One end of the steam return pipe is fixed on the gear vacuum pump, the end close to the gear vacuum pump is fixed on the return pipe, and the other end is fixed below the gas-liquid separation tank.

[0007] Furthermore, the liquid delivery assembly includes: The liquid inlet pipe is fixed above the concentration tank. The liquid outlet pipe is fixed below the concentration tank. The mother liquid inlet pipe is fixed on the liquid inlet pipe of the first concentration tank. There are two transfer pipes. The two transfer pipes are respectively fixed below the liquid outlet pipes of the first concentration tank and the second concentration tank, and are respectively fixed above the liquid inlet pipes of the second concentration tank and the third concentration tank. The liquid gear pump has its working end fixed on the transfer pipe, and its base is fixed below the support frame. The mother liquid outlet pipe is fixed on the liquid outlet pipe of the third concentration tank.

[0008] Furthermore, it further includes: The liquid control cylinder is fixed above the vacuum valve body at the lower part. A first liquid control piston slides inside, a second liquid control piston slides above, and an induction coil is fixed on the outside. A first arc-shaped magnet is fixed inside the first liquid control piston and is located below the second liquid control piston. A second arc-shaped magnet is fixed inside the second liquid control piston. There are multiple induction coils, and the multiple induction coils are equidistantly distributed on the outside of the liquid control cylinder. The upper liquid pipe is fixed above the vacuum trigger tube, between the positioning plate above the vacuum trigger tube and the hydraulic piston, and extends downward and is fixed inside the liquid control cylinder. The end inside the liquid control cylinder is slidably sleeved with a liquid sleeve tube. Above the liquid sleeve pipe is fixedly installed the first hydraulic control piston; the lower liquid pipe is fixedly installed below the vacuum trigger pipe and is located between the positioning plate below the vacuum trigger pipe and the hydraulic piston, and is fixedly installed below the liquid control cylinder; the first straight tooth plate slides downward and extends into the liquid control cylinder, and one end extending into the inner side of the liquid control cylinder is fixedly installed on the second hydraulic control piston; the transmission gear, the gear rack is fixedly installed on the liquid control cylinder and meshes with the first straight tooth plate; the position control rod slides downward and extends into the inner side of the vacuum valve body and is fixedly installed above the upper valve core; the second straight tooth plate is fixedly installed above the position control rod and meshes with the transmission gear.

[0009] Furthermore, a limit post is fixedly installed inside the steam power pipe, a steam piston slides inside, a chute is opened on the outside, an elastic telescopic rod is fixedly installed on the outside, and a steam supply pipe is fixedly installed below; Above the steam piston is fixedly installed below the dirt scraping plate and is located above the limit post; the telescopic end of the elastic telescopic rod is fixedly installed with a dislocation plate; the dislocation plate is located at the chute; the steam supply pipe is fixedly installed with a steam switch valve, and one end far away from the steam power pipe extends out of the concentration tank, and one end extending out of the concentration tank is fixedly installed on the three-joint pipe; the dirt scraping plate slides vertically in the chute, and dislocation inclined openings are opened at both ends.

[0010] Furthermore, a movable plug slides vertically inside the upper valve core; both ends of the movable plug are fixedly installed with movable springs and are located inside the upper valve core, and a connecting rod is fixedly installed below; the connecting rod is fixedly installed above the lower valve core below; a permanent magnet sheet is fixedly installed inside the lower valve core; an electromagnet is fixedly installed inside the vacuum valve body.

[0011] Furthermore, one air piston is provided at each end inside the vacuum trigger pipe, and one positioning plate is provided at each end inside the vacuum trigger pipe; One end of the air piston facing the positioning plate is fixedly installed with a tension spring and a displacement rod; One end of the tension spring far away from the air piston is fixedly installed on the positioning plate; One end of the displacement rod far away from the air piston slides through the positioning plate and is fixedly installed on the hydraulic piston.

[0012] Furthermore, a liquid distributor is fixedly installed inside the concentration tank, an evaporation pipe is fixedly installed inside the concentration tank, and the outside of the evaporation pipe is slidably inserted into the dirt scraping ring.

[0013] Furthermore, it further includes: The first water return cylinder is fixed above on the vacuum distribution pipe, fixed below on the water collecting pipe, and has a first floating spring fixed inside; the filter box is fixed above below the support frame; the water collecting pipe has one end away from the first water return cylinder fixed on the filter box; the second water return cylinder is fixed above below the gas-liquid separation tank and has a spring seat fixed inside; the water return pipe extends above into the concentration tank and is fixed below the evaporation pipe, and is fixed below on the water collecting pipe; the water suction pipe is fixed below on the filter box and fixed above on the steam water tank; the water supply pump has its base fixed on the steam water tank and its working end fixed on the water suction pipe; the water suction pump has its base fixed on the steam water tank; the cleaning pipe has one end fixed on the steam water tank and the other end fixed above the concentration tank and is fixed on the working end of the water suction pump; the electric water valve is fixed on the cleaning pipe near the concentration tank end; A first floating valve ball is fixed below the first floating spring; a second floating spring is fixed above the spring seat, and a second floating valve ball is fixed above the second floating spring, and the second floating valve ball is located inside the gas-liquid separation tank.

[0014] Second aspect, the usage method of the concentration device includes: Step 1, feed the mother liquor into the concentration tank, and use the liquid distributor to evenly distribute the liquid to the top of the evaporation pipe to ensure that the mother liquor can form a uniform thin film on the pipe wall, and then supply it to the steam area of the concentration tank through the external steam supply pipe to heat the evaporation pipe, and the mother liquor evaporates water when heated; Step 2, start the gear vacuum pump. The gear vacuum pump makes the inner top, inner bottom of the concentration tank and inside the evaporation pipe generate negative pressure through the vacuum distribution pipe and the vacuum ring pipe, which helps to promote the flow of the viscous mother liquor. This negative pressure takes away the steam inside the evaporation pipe and enters the gas-liquid separation tank; Step 3, start the circulation pump to re-circulate the steam in the gas-liquid separation tank back to the steam area in the concentration tank to reduce the loss of steam energy; Step 4, utilize the steam power to enter the steam power pipe. The steam pushes the steam piston to slide in the steam power pipe, and the steam piston drives the dirt scraping plate and the dirt scraping ring to move. The dirt scraping ring scrapes the dirt on the outer wall of the evaporation pipe to prevent uneven heating of the evaporation pipe by the steam; Step 5, stop the process of concentrating the mother liquor, and clean the inner walls of the liquid distributor and the evaporation pipe in the concentration tank. Due to the loss of heat of the steam, the steam condenses into water. The water is guided through the first water return cylinder, the second water return cylinder and the water return pipe and enters the filter box, and then enters the steam water tank through the water suction pipe and the water supply pump, and then through the water suction pump, the cleaning pipe and the electric water valve to effectively clean the inner walls of the liquid distributor and the evaporation pipe, and another kind of mother liquor can be replaced for concentration.

[0015] The above scheme of the present invention has at least the following beneficial effects: By generating a large negative pressure in the evaporation tube, the fluidity of the liquid is effectively optimized. Especially when dealing with high-viscosity mother liquor, the introduction of negative pressure improves the flow of high-viscosity liquid, avoiding the formation of an overly thick liquid film in a conventional evaporator, which may lead to low heat transfer efficiency. The negative pressure can promote the flow of the mother liquor along the evaporation tube wall, reduce the viscosity of the viscous liquid, and effectively improve the evaporation efficiency. Generating a large negative pressure in the evaporation tube causes the boiling temperature of the mother liquor inside the evaporation tube to decrease as the negative pressure increases, thereby reducing the energy consumption during the evaporation process. The evaporation tube is in a negative pressure state, thinning the liquid film thickness in the heating tube, ensuring uniform heating of the liquid, and thus improving the mother liquor viscosity and evaporation concentration efficiency. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of a concentration device for extracting oyster taurine provided by an embodiment of the present invention from a first perspective; Figure 2 It is a concentration device for extracting oyster taurine provided by an embodiment of the present invention Figure 1 Enlarged view of part A; Figure 3 It is a schematic diagram of the overall structure of a concentration device for extracting oyster taurine provided by an embodiment of the present invention from a second perspective; Figure 4 It is a three-dimensional structure schematic diagram of a concentration tank of a concentration device for extracting oyster taurine provided by an embodiment of the present invention; Figure 5 It is a three-dimensional structure schematic diagram of a mother liquor inlet pipe of a concentration device for extracting oyster taurine provided by an embodiment of the present invention; Figure 6 It is a three-dimensional structure schematic diagram of a steam water tank of a concentration device for extracting oyster taurine provided by an embodiment of the present invention; Figure 7 It is a concentration device for extracting oyster taurine provided by an embodiment of the present invention Figure 6 Enlarged view of part B; Figure 8 It is a concentration device for extracting oyster taurine provided by an embodiment of the present invention Figure 6 Enlarged view of part C; Figure 9 It is a three-dimensional structure schematic diagram of a liquid distributor of a concentration device for extracting oyster taurine provided by an embodiment of the present invention; Figure 10 It is a concentration device for extracting oyster taurine provided by an embodiment of the present invention Figure 9 Enlarged view of part D; Figure 11 It is a concentration device for extracting oyster taurine provided by an embodiment of the present invention Figure 10Enlarged view at position E in Figure 12 A concentration device for extracting oyster taurine provided by an embodiment of the present invention Figure 9 Enlarged view at position F of Figure 13 A concentration device for extracting oyster taurine provided by an embodiment of the present invention Figure 9 Enlarged view at position G of Figure 14 Schematic three - dimensional structure diagram of the misaligned plate of a concentration device for extracting oyster taurine provided by an embodiment of the present invention Figure 15 A concentration device for extracting oyster taurine provided by an embodiment of the present invention Figure 14 Enlarged view at position H of Figure 16 A concentration device for extracting oyster taurine provided by an embodiment of the present invention Figure 14 Enlarged view at position I of

[0017] Explanation of reference numerals: In the figure: 1, support frame; 2, concentration tank; 201, liquid distributor; 202, evaporation tube; 203, liquid inlet pipe; 204, liquid outlet pipe; 3, gas-liquid separation tank; 4, controller; 5, liquid delivery assembly; 501, mother liquor inlet pipe; 502, transfer pipe; 503, liquid gear pump; 504, mother liquor outlet pipe; 6, steam delivery assembly; 601, external steam supply pipe; 602, steam circulation pipe; 603, three-joint pipe; 604, circulation pump; 605, steam loop pipe; 606, return pipe; 607, first steam electric valve; 608, second steam electric valve; 609, check valve; 6010, steam return pipe; 7, vacuum power assembly; 701, gear vacuum pump; 702, vacuum distribution pipe; 703, vacuum loop pipe; 8, vacuum control assembly; 801, vacuum valve body; 802, upper valve core; 803, lower valve core; 804, vacuum trigger tube; 805, movable plug; 806, movable spring; 807, connecting rod; 808, permanent magnet sheet; 809, electromagnet; 8010, air piston; 8011, positioning plate; 8012, tension spring; 8013, displacement rod; 8014, hydraulic piston; 8015, liquid control cylinder; 8016, first liquid control piston; 8017, first arc magnet; 8018, second liquid control piston; 8019, second arc magnet; 8020, induction coil; 8021, upper liquid pipe; 8022, liquid sleeve pipe; 8023, lower liquid pipe; 8024, first straight tooth plate; 8025, transmission gear; 8026, position control rod; 8027, second straight tooth plate; 9, descaling assembly; 901, steam power pipe; 902, scraping plate; 903, scraping ring; 904, steam water tank; 905, limit post; 906, steam piston; 907, chute; 908, elastic telescopic rod; 909, offset plate; 9010, steam supply pipe; 9011, steam switch valve; 9012, offset inclined port; 9013, first water return cylinder; 9014, water collecting pipe; 9015, second water return cylinder; 9016, water return pipe; 9017, filter box; 9018, water extraction pipe; 9019, water supply pump; 9020, water extraction pump; 9021, cleaning pipe; 9022, electric water valve; 9023, first floating spring; 9024, first floating valve ball; 9025, spring seat; 9026, second floating spring; 9027, second floating valve ball. Detailed implementation mode

[0018] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be more thoroughly understood and the scope of the present invention can be completely conveyed to those skilled in the art.

[0019] As Figures 1 to 16As shown in the figure, an embodiment of the present invention provides a concentration device for extracting oyster taurine, including a support frame 1 and three concentration tanks 2 arranged on the support frame 1. A gas-liquid separation tank 3 is fixed inside the support frame 1, and a controller 4 is fixed inside the support frame 1. A liquid delivery component 5 is fixed below the concentration tank 2, and a steam delivery component 6 is fixed on the outer wall of the concentration tank 2. It further includes: The vacuum power component 7 includes: a gear vacuum pump 701, fixed inside the support frame 1 for performing vacuum work on the inside of the concentration tank 2; a vacuum distribution pipe 702, with one end fixed to the gear vacuum pump 701; a vacuum ring pipe 703, with one end fixed to the concentration tank 2 and the other end fixed to the other end of the vacuum distribution pipe 702. The vacuum control component 8 includes: a vacuum valve body 801, fixed on the vacuum ring pipe 703, with an upper valve core 802 and a lower valve core 803 inside, and the upper valve core 802 is located above the lower valve core 803 for adjusting the opening and closing to match the power output of the gear vacuum pump 701; a vacuum trigger pipe 804, with both ends fixed to the concentration tank 2, with a positioning plate 8011 fixed inside, and an air piston 8010 and a hydraulic piston sliding inside. The descaling component 9 includes: a steam power pipe 901, fixed inside the concentration tank 2; a scraping plate 902, sliding vertically on the steam power pipe 901; a scraping ring 903, fixed at both ends of the scraping plate 902 for scraping dirt; a steam water tank 904, fixed above the support frame 1 for collecting steam condensate.

[0020] A liquid distributor 201 is fixed inside the concentration tank 2, and an evaporation pipe 202 is fixed inside the concentration tank 2. The outer side of the evaporation pipe 202 is slidably inserted into the scraping ring 903.

[0021] Furthermore, the controller 4 is used to control the electrical equipment of the vacuum power component 7, the vacuum control component 8, and the descaling component 9. There are three concentration tanks 2, and the bottom of the concentration tank 2 is arranged in a conical shape. The area between the concentration tank 2 and the evaporation pipe 202 is a steam area. A vacuum spring is arranged in the bottom drainage pipe of the liquid distributor 201, and a sealed ball valve is arranged in the drainage pipe. The sealed ball valve is fixedly connected to the top of the vacuum spring to block the inside of the drainage pipe. During operation, it prevents the negative pressure at the top inside the concentration tank 2 from quickly flowing down the mother liquor inside the liquid distributor 201, thereby preventing a thick film fluid from forming on the inner wall of the evaporation pipe 202.

[0022] As a preferred embodiment of the present invention, the liquid delivery component 5 includes: The liquid inlet pipe 203 is fixed above the concentration tank 2; the liquid outlet pipe 204 is fixed below the concentration tank 2; the mother liquor inlet pipe 501 is fixed on the liquid inlet pipe 203 of the first concentration tank 2; there are two transfer pipes 502, and the lower parts of the two transfer pipes 502 are respectively fixed on the liquid outlet pipe 204 of the first concentration tank 2 and the liquid outlet pipe 204 of the second concentration tank 2, and the upper parts of the two transfer pipes 502 are respectively fixed on the liquid inlet pipe 203 of the second concentration tank 2 and the liquid inlet pipe 203 of the third concentration tank 2; the liquid gear pump 503 has its working end fixed on the transfer pipe 502 and its base fixed below the support frame 1; the mother liquor outlet pipe 504 is fixed on the liquid outlet pipe 204 of the third concentration tank 2.

[0023] In the actual application process of this embodiment, the mother liquor enters the inner top of the concentration tank 2 from the mother liquor inlet pipe 501 and the liquid inlet pipe 203. The mother liquor accumulates in the liquid distributor 201 until it is full. Then, due to the pressure of the mother liquor, the sealing ball valve and the vacuum spring in the drainage pipe of the liquid distributor 201 are opened. The mother liquor flows out from the drainage pipe, flows into the inner wall of the evaporation pipe 202 from the top of the evaporation pipe 202, and forms a thin film fluid on the inner wall of the evaporation pipe 202. After the mother liquor evaporates, it flows into the inner bottom of the concentration tank 2, and then through the cooperation of the transfer pipe 502 and the liquid gear pump 503, the mother liquor flows into the next concentration tank 2 and the third concentration tank 2 in sequence, and then flows out from the bottom liquid outlet pipe 204 and the mother liquor outlet pipe 504 of the third concentration tank 2, and the concentrated mother liquor is collected.

[0024] As a preferred embodiment of the present invention, the steam delivery assembly 6 includes: The external steam supply pipe 601 is located inside the support frame 1; one end of the steam circulation pipe 602 is fixed above the gas-liquid separation tank 3; the three-joint pipe 603 is fixed on the external steam supply pipe 601, and is fixed at the other end of the steam circulation pipe 602. A first steam electric valve 607 is fixed at one end close to the external steam supply pipe 601 and one end close to the steam circulation pipe 602; the base of the circulation pump 604 is fixed outside the gas-liquid separation tank 3, and its working end is fixedly installed on the steam circulation pipe 602; the steam ring pipe 605 has its annular end fixed above the concentration tank 2, and a second steam electric valve 608 is fixed at the non-annular end of the steam ring pipe 605; one end of the return pipe 606 is fixed at the non-annular end of the steam ring pipe 605, and a check valve 609 is fixed at the other end; one end of the steam return pipe 6010 is fixed on the gear vacuum pump 701, and one end close to the gear vacuum pump 701 is fixed on the return pipe 606, and the other end is fixed below the gas-liquid separation tank 3.

[0025] In the actual application process of this embodiment, the external supply steam pipe 601 is connected to an external steam pipe, and the steam provides heat for the steam area. The steam in the steam area exits from the steam ring pipe 605 and enters the gas-liquid separation tank 3. The circulating pump 604 is used to effectively utilize the steam, and the mother liquor passes through the evaporation area, and the mother liquor evaporates water.

[0026] As a preferred embodiment of the present invention, the vacuum control assembly 8 further includes: A liquid control cylinder 8015, fixed below the vacuum valve body 801, with a first liquid control piston 8016 sliding inside, a second liquid control piston 8018 sliding above, and an induction coil 8020 fixed on the outside; a first arc-shaped magnet 8017 is fixed inside the first liquid control piston 8016 and is located below the second liquid control piston 8018; a second arc-shaped magnet 8019 is fixed inside the second liquid control piston 8018; there are multiple induction coils 8020, and the multiple induction coils 8020 are equidistantly distributed on the outside of the liquid control cylinder 8015; an upper liquid pipe 8021, fixed above the vacuum trigger pipe 804, between the positioning plate 8011 above the vacuum trigger pipe 804 and the hydraulic piston 8014, and fixed and extended below into the liquid control cylinder 8015, and a liquid sleeve 8022 is slidably sleeved at one end located inside the liquid control cylinder 8015; The liquid sleeve 8022 is fixed above the first liquid control piston 8016; a lower liquid pipe 8023, fixed above the vacuum trigger pipe 804 and between the positioning plate 8011 below the vacuum trigger pipe 804 and the hydraulic piston 8014, and fixed below the liquid control cylinder 8015; a first straight tooth plate 8024, slidably extended below into the liquid control cylinder 8015, and one end extending inside the liquid control cylinder 8015 is fixed on the second liquid control piston 8018; a transmission gear 8025, with the gear rack fixed on the liquid control cylinder 8015, and meshing with the first straight tooth plate 8024; a position control rod 8026, slidably extended below into the inside of the vacuum valve body 801, and fixed above the upper valve core 802 below; a second straight tooth plate 8027, fixed above the position control rod 8026, and meshing with the transmission gear 8025.

[0027] Specifically, an active piston 805 slides vertically inside the upper valve core 802; both ends of the active piston 805 are fixed with active springs 806, and they are located inside the upper valve core 802, and a connecting rod 807 is fixed below; the lower part of the connecting rod 807 is fixed above the lower valve core 803; a permanent magnet sheet 808 is fixed inside the lower valve core 803; an electromagnet 809 is fixed inside the vacuum valve body 801; one air piston 8010 is provided at each end of the vacuum trigger tube 804, and one positioning plate 8011 is provided at each end of the vacuum trigger tube 804; one end of the air piston 8010 facing the positioning plate 8011 is fixed with a tension spring 8012 and a displacement rod 8013; the end of the tension spring 8012 away from the air piston 8010 is fixed on the positioning plate 8011; the end of the displacement rod 8013 away from the air piston 8010 slides through the positioning plate 8011 and is fixed on the hydraulic piston 8014.

[0028] Furthermore, when the operation stops, the upper valve core 802 is in a sealed state with the inner top of the vacuum valve body 801, and the lower valve core 803 is in an open state with the inner bottom of the vacuum valve body 801; when operating normally, the upper valve core 802 is in an open state with the inner top of the vacuum valve body 801, and the lower valve core 803 is in a sealed state with the inner bottom of the vacuum valve body 801.

[0029] As a preferred embodiment of the present invention, the descaling assembly 9 further includes: The first return water cylinder 9013 is fixed above on the vacuum distribution pipe 702 and below on the water collecting pipe 9014, and a first floating spring 9023 is fixed inside; the filter box 9017 is fixed above on the support frame 1; the water collecting pipe 9014 is fixed at one end away from the first return water cylinder 9013 on the filter box 9017; the second return water cylinder 9015 is fixed above on the gas-liquid separation tank 3, and a spring seat 9025 is fixed inside; the return water pipe 9016 extends above into the concentration tank 2 and is fixed below the evaporation pipe 202, and is fixed below on the water collecting pipe 9014; the water extraction pipe 9018 is fixed below on the filter box 9017 and above on the steam water tank 904; the water supply pump 9019 has its base fixed on the steam water tank 904, and its working end is fixed on the water extraction pipe 9018; the water extraction pump 9020 has its base fixed on the steam water tank 904; the cleaning pipe 9021 is fixed at one end on the steam water tank 904 and at the other end above the concentration tank 2, and is fixed on the working end of the water extraction pump 9020; the electric water valve 9022 is fixed on the cleaning pipe 9021 near one end of the concentration tank 2. A first floating valve ball 9024 is fixed below the first floating spring 9023; a second floating spring 9026 is fixed above the spring seat 9025, and a second floating valve ball 9027 is fixed above the second floating spring 9026, and the second floating valve ball 9027 is located inside the gas-liquid separation tank 3.

[0030] Specifically, a limiting post 905 is fixed inside the steam power pipe 901, a steam piston 906 slides inside, a chute 907 is provided on the outside, an elastic telescopic rod 908 is fixed on the outside, and a steam supply pipe 9010 is fixed below; above the steam piston 906 is fixed below the dirt scraping plate 902 and is located above the limiting post 905; the telescopic end of the elastic telescopic rod 908 is fixed with a dislocation plate 909; the dislocation plate 909 is located at the chute 907; the steam supply pipe 9010 is fixedly provided with a steam switch valve 9011, and one end away from the steam power pipe 901 extends out of the concentration tank 2, and the end extending out of the concentration tank 2 is fixed on the three-joint pipe 603; the dirt scraping plate 902 vertically slides in the chute 907, and dislocation inclined openings 9012 are provided at both ends.

[0031] In the actual application process of this embodiment, the descaling assembly 9 includes two parts. The first is to use steam as power to continuously descale the outer wall of the evaporation tube 202 through the dirt scraping ring 903; the second is to stop working. When it is necessary to clean the inside of the concentration tank 2, the water collected by condensing steam is used to flush the inside of the concentration tank 2 clean, and the heat of the steam can be used to evaporate the water inside the concentration tank 2.

[0032] Working principle: Start the gear vacuum pump 701. The gear vacuum pump 701 extracts the gas in the vacuum ring pipe 703, the vacuum valve body 801, the concentration tank 2, the evaporation tube 202 and the vacuum trigger tube 804 through the vacuum distribution pipe 702, and a negative pressure is generated in the vacuum ring pipe 703, the vacuum valve body 801, the concentration tank 2, the evaporation tube 202 and the vacuum trigger tube 804.

[0033] The boiling temperature of the mother liquor inside the evaporation tube 202 decreases as the negative pressure increases, thereby reducing the energy consumption during the evaporation process; the evaporation tube 202 is in a negative pressure state, and the negative pressure helps to promote the flow of the mother liquor, reduce the liquid film thickness in the heating tube, and ensure uniform heating of the liquid, thereby improving the evaporation and concentration efficiency of the high-viscosity mother liquor.

[0034] The top of the vacuum trigger tube 804 is communicated with the inner top of the concentration tank 2, and the bottom of the vacuum trigger tube 804 is communicated with the inner bottom of the concentration tank 2. The vacuum trigger tube 804 can detect the negative pressure at the inner top and inner bottom of the concentration tank 2; the air piston 8010 moves in opposite directions at the upper and lower ends of the vacuum trigger tube 804 under the negative pressure state, the air piston 8010 pulls the tension spring 8012, the air piston 8010 drives the displacement rod 8013 to move, and the movement of the displacement rod 8013 drives the hydraulic piston 8014 to move towards the positioning plate 8011, and the liquid between the positioning plate 8011 and the hydraulic piston 8014 flows out from the upper liquid pipe 8021 and the lower liquid pipe 8023.

[0035] The liquid in the upper liquid pipe 8021 and the lower liquid pipe 8023 enters the liquid control cylinder 8015. The upper liquid pipe 8021 enters between the first liquid control piston 8016 and the second liquid control piston 8018 through the liquid sleeve pipe 8022. The liquid sleeve pipe 8022 can slide up and down along the upper liquid pipe 8021. The liquid in the lower liquid pipe 8023 enters between the inner bottom of the liquid control cylinder 8015 and the first liquid control piston 8016. Inside the first liquid control piston 8016 and the second liquid control piston 8018, there are first arc magnets 8017 and second arc magnets 8019 respectively. Then, the induction coil 8020 senses the positions of the first liquid control piston 8016 and the second liquid control piston 8018 in the liquid control cylinder 8015, and detects the negative pressure magnitude states at the inner bottom and inner top of the concentration tank 2 through the change of positions, so as to make the negative pressure position inside the evaporation pipe 202 in an effective state. The negative pressure inside the evaporation pipe 202 helps to promote the flow of mother liquor, reduce the liquid film thickness in the heating pipe, ensure uniform heating of the liquid, and thus improve the evaporation and concentration efficiency of the high-viscosity mother liquor.

[0036] When the positions of the first liquid control piston 8016 and the second liquid control piston 8018 in the liquid control cylinder 8015 rise or fall, the displacement of the second liquid control piston 8018 drives the displacement of the first straight tooth plate 8024. The transmission gear 8025 meshes with the first straight tooth plate 8024, and the transmission gear 8025 transmits the power of the first straight tooth plate 8024. The transmission gear 8025 meshes with the second straight tooth plate 8027, and the movement direction of the second straight tooth plate 8027 is opposite to that of the first straight tooth plate 8024.

[0037] During operation, the movement direction of the second straight tooth plate 8027 is downward. The second straight tooth plate 8027 drives the position control rod 8026 to move downward, and the position control rod 8026 drives the upper valve core 802 to move downward. The upper valve core 802 opens the top channel of the vacuum valve body 801. The downward displacement of the upper valve core 802 drives the connecting rod 807 and the lower valve core 803, so that the lower valve core 803 seals the bottom channel of the vacuum valve body 801.

[0038] The negative pressure magnitudes at the inner top and inner bottom of the concentration tank 2 are floating. In order to avoid the floating displacement of the upper valve core 802 from affecting the sealing of the bottom channel of the vacuum valve body 801 by the lower valve core 803, an activity plug 805 and an activity spring 806 are arranged inside the upper valve core 802 for elastic floating adjustment, and the electromagnet 809 is started. The electromagnet 809 attracts the permanent magnet sheet 808 inside the lower valve core 803, so that the lower valve core 803 seals the bottom channel of the vacuum valve body 801 better.

[0039] Adjust the opening degree of the upper valve core 802 and the top channel of the vacuum valve body 801 adaptively according to the negative pressure states at the inner bottom and inner top of the concentration tank 2; when the negative pressure at the inner bottom and inner top of the concentration tank 2 disappears, the upper valve core 802 and the top channel of the vacuum valve body 801 are in a sealed state, the electromagnet 809 stops working, and the movable piston 805 and the movable spring 806 drive the connecting rod 807 and the lower valve core 803 to reset, and the lower valve core 803 and the bottom channel of the vacuum valve body 801 are in an open state.

[0040] When the gear vacuum pump 701 works, while generating negative pressure in the vacuum loop pipe 703, the vacuum valve body 801, the concentration tank 2, the evaporation pipe 202 and the vacuum trigger pipe 804, the gear vacuum pump 701 extracts the steam evaporated from the mother liquor in the evaporation pipe 202, and then enters the gas-liquid separation tank 3 through the steam return pipe 6010. The gas-liquid separation tank 3 settles down the tiny water droplets, and the steam accumulates at the inner top of the gas-liquid separation tank 3.

[0041] The steam in the gas-liquid separation tank 3 enters the three-joint pipe 603 through the circulation pump 604 and the steam circulation pipe 602. The first steam electric valve 607 on the three-joint pipe 603 is opened, and the steam in the external supply steam pipe 601 and the gas-liquid separation tank 3 is transported into the steam supply pipe 9010.

[0042] The steam supply pipe 9010 opens different steam switch valves 9011 in sequence and enters different steam power pipes 901. The steam in the steam power pipe 901 pushes the steam piston 906 to move upward. The movement of the steam piston 906 drives the movement of the dirt scraping plate 902. The movement of the dirt scraping plate 902 drives the dirt scraping ring 903 to move along the outer wall of the evaporation pipe 202 to remove the dirt on the outer wall of the evaporation pipe 202 and avoid reducing the heat exchange efficiency. When the dirt scraping plate 902 moves upward, the misaligned inclined opening 9012 of the dirt scraping plate 902 separates the misaligned plate 909, and the misaligned plate 909 retracts towards the elastic telescopic rod 908 to make room for the upward movement of the dirt scraping plate 902. When the misaligned plate 909 makes room for the upward movement of the dirt scraping plate 902, some steam will leak. Part of the steam flows out and enters the steam area until the steam piston 906 displaces to the inner top of the steam power pipe 901, and the steam enters the steam area from the chute 907. The steam switch valve 9011 corresponding to the steam power pipe 901 is closed, and the steam switch valve 9011 of the next group of steam power pipes 901 is opened. After the steam piston 906 displaces to the inner top of the steam power pipe 901, it slides downward by its own weight; while maintaining the temperature of the steam area, the dirt scraping plate 902 decontaminates the outer wall of the evaporation pipe 202.

[0043] During normal operation, the first water return cylinder 9013 collects the condensed water in the vacuum distribution pipe 702, and the buoyancy of the water opens the first floating valve ball 9024, and the water in the first water return cylinder 9013 enters the water collection pipe 9014. The second water return cylinder 9015 collects the condensed water in the gas-liquid separation tank 3, and the buoyancy of the water opens the second floating valve ball 9027, and the water in the second water return cylinder 9015 enters the water collection pipe 9014. The water return pipe 9016 collects the condensed water in the steam area into the water collection pipe 9014. The water in the water collection pipe 9014 is filtered through the filter box 9017, and then the water in the filter box 9017 is supplied to the steam water tank 904 through the water supply pump 9019 and the pumping pipe 9018 for water storage.

[0044] When not working, start the water pump 9020, pump out the water in the steam water tank 904, open the electric water valve 9022, and the water enters the concentration tank 2 through the cleaning pipe 9021 to clean the inner wall of the evaporation tube 202, and the water is discharged from the liquid conveying component 5.

[0045] The vacuum trigger tube 804 is connected to the inner top and inner bottom of the concentration tank 2. The vacuum trigger tube 804 can detect the negative pressure of the inner top and inner bottom of the concentration tank 2, and control the hydraulic oil discharged between the positioning plate 8011 and the hydraulic piston 8014 to enter the hydraulic control cylinder 8015, thereby increasing the height of the first hydraulic control piston 8016 and the second hydraulic control piston 8018 in the hydraulic control cylinder 8015. In addition, the induction coil 8020 senses the position of the first arc magnet 8017 and the second arc magnet 8019, and can detect the negative pressure of the concentration tank 2. The negative pressure at the top and bottom of the concentration tank 2 is measured to ensure that an effective negative pressure is maintained in the evaporation tube 202; the height of the first hydraulic control piston 8016 and the second hydraulic control piston 8018 in the hydraulic control cylinder 8015 controls the opening of the upper valve core 802 and the top channel of the vacuum valve body 801, and the opening of the channel is adaptive. This design is more flexible and can adapt to different negative pressure changes and adjust in real time. When the negative pressure in the concentration tank 2 disappears, the upper valve core 802 and the top channel of the vacuum valve body 801 can be automatically closed.

[0046] The steam in the steam power pipe 901 pushes the steam piston 906 to move upward, and the movement of the steam piston 906 drives the movement of the scraper plate 902, and the movement of the scraper plate 902 drives the scraper ring 903 to move along the outer wall of the evaporator tube 202 to remove the dirt on the outer wall of the evaporator tube 202, and slides downward by its own weight to avoid reducing the heat exchange efficiency; while maintaining the temperature of the steam area, the scraper ring 903 removes dirt from the outer wall of the evaporator tube 202.

[0047] Water in the first water return cylinder 9013, the second water return cylinder 9015 and the water return pipe 9016 enters the water collecting pipe 9014. The water in the water collecting pipe 9014 is filtered through the filter tank 9017, and then the water in the filter tank 9017 is supplied to the steam water tank 904 through the water supply pump 9019 and the water extraction pipe 9018 for water storage. When not working, the water extraction pump 9020 is started. The water extraction pump 9020 extracts the water in the steam water tank 904, and the electric water valve 9022 is opened. The water enters the concentration tank 2 through the cleaning pipe 9021 to clean the inner wall of the evaporation pipe 202.

[0048] As a preferred embodiment of the present invention, the use method of the concentration device includes: Step 1: Feed the mother liquor into the concentration tank 2. The liquid distributor 201 is used to evenly distribute the liquid to the top of the evaporation pipe 202 to ensure that the mother liquor can form a uniform film on the pipe wall. Then, it is supplied to the steam area of the concentration tank 2 through the external steam supply pipe 601 to heat the evaporation pipe 202, and the mother liquor is heated to evaporate water. Step 2: Start the gear vacuum pump 701. The gear vacuum pump 701 generates negative pressure in the inner top and inner bottom of the concentration tank 2 and inside the evaporation pipe 202 through the vacuum distribution pipe 702 and the vacuum ring pipe 703, which helps to promote the flow of the viscous mother liquor. This negative pressure takes away the steam in the evaporation pipe 202 and enters the gas-liquid separation tank 3. Step 3: Start the circulation pump 604 to re-circulate the steam in the gas-liquid separation tank 3 back to the steam area in the concentration tank 2 to reduce the loss of steam energy. Step 4: Utilize the steam power to enter the steam power pipe 901. The steam pushes the steam piston 906 to slide in the steam power pipe 901. The steam piston 906 drives the dirt scraping plate 902 and the dirt scraping ring 903 to move. The dirt scraping ring 903 scrapes the dirt on the outer wall of the evaporation pipe 202 to prevent uneven heating of the evaporation pipe 202 by the steam. Step 5: Stop the process of concentrating the mother liquor, and clean the inner wall of the liquid distributor 201 and the evaporation pipe 202 in the concentration tank 2. Due to the loss of heat of the steam, the steam condenses into water. The water is guided through the first water return cylinder 9013, the second water return cylinder 9015 and the water return pipe 9016 and enters the filter tank 9017, and then enters the steam water tank 904 through the water extraction pipe 9018 and the water supply pump 9019. Then, through the water extraction pump 9020, the cleaning pipe 9021 and the electric water valve 9022, the inner wall of the liquid distributor 201 and the evaporation pipe 202 can be effectively cleaned, and another kind of mother liquor can be replaced for concentration.

[0049] The above is the preferred implementation mode of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A concentration device for extracting oyster taurine, comprising: A support frame and three concentration tanks arranged on the support frame. A gas-liquid separation tank is fixed inside the support frame, and a controller is fixed inside the support frame. A liquid delivery assembly is fixed below the concentration tank, and a steam delivery assembly is fixed on the outer wall of the concentration tank. It is characterized in that it further includes: A gear vacuum pump, fixed inside the support frame, for performing vacuum work on the concentration tank; a vacuum distribution pipe, one end of which is fixed on the gear vacuum pump; a vacuum loop pipe, one end of which is fixed on the concentration tank and the other end of which is fixed on the other end of the vacuum distribution pipe; A vacuum valve body, fixed on the vacuum loop pipe, with an upper valve core and a lower valve core provided inside, and the upper valve core is located above the lower valve core, for adjusting the opening and closing to match the power output of the gear vacuum pump; a vacuum trigger pipe, both ends of which are fixed on the concentration tank, with a positioning plate fixed inside, and an air piston and a hydraulic piston sliding inside; A steam power pipe, fixed inside the concentration tank; a scraping plate, vertically sliding on the steam power pipe; a scraping ring, fixed at both ends of the scraping plate, for scraping dirt; a steam water tank, fixed above the support frame, for collecting steam condensate.

2. The concentration device for oyster taurine extraction according to claim 1, characterized in that, The steam delivery assembly includes: An externally supplied steam pipe, located inside the support frame; a steam circulation pipe, one end of which is fixed above the gas-liquid separation tank; a three-way joint pipe, fixed on the externally supplied steam pipe and the other end of the steam circulation pipe, with a first steam electric valve fixed at both the end close to the externally supplied steam pipe and the end close to the steam circulation pipe; a circulation pump, with its base fixed outside the gas-liquid separation tank and its working end fixedly installed on the steam circulation pipe; a steam loop pipe, with its annular end fixed above the concentration tank, and a second steam electric valve fixed at the non-annular end of the steam loop pipe; a return pipe, one end of which is fixed on the non-annular end of the steam loop pipe and the other end of which is fixed with a check valve; a steam return pipe, one end of which is fixed on the gear vacuum pump, the end close to the gear vacuum pump is fixed on the return pipe, and the other end is fixed below the gas-liquid separation tank.

3. The concentration device for extracting oyster taurine according to claim 2, characterized in that, The liquid delivery assembly includes: A liquid inlet pipe, fixed above the concentration tank; a liquid outlet pipe, fixed below the concentration tank; a mother liquid inlet pipe, fixed on the liquid inlet pipe of the first concentration tank; two transfer pipes, with the lower parts of the two transfer pipes respectively fixed on the liquid outlet pipes of the first concentration tank and the second concentration tank, and the upper parts of the two transfer pipes respectively fixed on the liquid inlet pipes of the second concentration tank and the third concentration tank; a liquid gear pump, with its working end fixed on the transfer pipe and its base fixed below the support frame; a mother liquid outlet pipe, fixed on the liquid outlet pipe of the third concentration tank.

4. A concentration device for oyster taurine extraction according to claim 2 or 3, characterized in that, It further includes: A liquid control cylinder, with its lower part fixed above the vacuum valve body, a first liquid control piston sliding inside, a second liquid control piston sliding above, and an induction coil fixed outside; a first arc-shaped magnet is fixed inside the first liquid control piston and is located below the second liquid control piston; a second arc-shaped magnet is fixed inside the second liquid control piston; there are multiple induction coils, and the multiple induction coils are equidistantly distributed outside the liquid control cylinder; an upper liquid pipe, with its upper part fixed above the vacuum trigger pipe, located between the positioning plate above the vacuum trigger pipe and the hydraulic piston, and its lower part is fixedly extended into the liquid control cylinder, and the end located inside the liquid control cylinder is slidably sleeved with a liquid sleeve pipe; A first hydraulic control piston is fixed above the liquid sleeve tube; a lower liquid pipe is fixed above the vacuum trigger tube and is located between the positioning plate below the vacuum trigger tube and the hydraulic piston, and is fixed below the liquid control cylinder; a first straight tooth plate slides downward and extends into the liquid control cylinder, and one end extending into the inner side of the liquid control cylinder is fixed on the second hydraulic control piston; a transmission gear, the gear rack is fixed on the liquid control cylinder and meshes with the first straight tooth plate; a position control rod slides downward and extends into the inner side of the vacuum valve body and is fixed above the upper valve core; a second straight tooth plate is fixed above the position control rod and meshes with the transmission gear.

5. A concentration device for extracting oyster taurine according to claim 4, characterized in that, A limiting column is fixed inside the steam power pipe, a steam piston slides inside, a chute is provided on the outside, an elastic telescopic rod is fixed on the outside, and a steam supply pipe is fixed below. The upper part of the steam piston is fixed below the dirt scraping plate and is located above the limiting column; the telescopic end of the elastic telescopic rod is fixed with a dislocation plate; the dislocation plate is located at the chute; the steam supply pipe is fixedly provided with a steam switch valve, and one end far from the steam power pipe extends out of the concentration tank, and the end extending out of the concentration tank is fixed on a three-way joint pipe; the dirt scraping plate vertically slides in the chute, and dislocation inclined openings are provided at both ends.

6. The concentration device for oyster taurine extraction according to claim 5, wherein, An activity plug slides vertically inside the upper valve core; both ends of the activity plug are fixed with activity springs and are located inside the upper valve core, and a connecting rod is fixed below; the lower part of the connecting rod is fixed above the lower valve core; a permanent magnet sheet is fixed inside the lower valve core; an electromagnet is fixed inside the vacuum valve body.

7. A concentration device for extracting oyster taurine according to claim 1, characterized in that, One air piston is provided at each end of the vacuum trigger tube, and one positioning plate is provided at each end of the vacuum trigger tube. One end of the air piston facing the positioning plate is fixed with a tension spring and a displacement rod. One end of the tension spring far from the air piston is fixed on the positioning plate. One end of the displacement rod far from the air piston slides through the positioning plate and is fixed on the hydraulic piston.

8. The concentration device for oyster taurine extraction according to claim 7, characterized in that, A liquid distributor is fixed inside the concentration tank, an evaporation pipe is fixed inside the concentration tank, and the outside of the evaporation pipe is slidably inserted into a dirt scraping ring.

9. The concentrating device for oyster taurine extraction according to claim 6, wherein It also includes: A first return water cylinder is fixed above the vacuum distribution pipe and below the water collecting pipe, and a first floating spring is fixed inside. A filter box is fixed below the support frame; a water collecting pipe, one end far from the first return water cylinder is fixed on the filter box; a second return water cylinder is fixed below the gas-liquid separation tank, and a spring seat is fixed inside; a return water pipe extends into the concentration tank above and is fixed below the evaporation pipe and below is fixed on the water collecting pipe; a water extraction pipe is fixed below the filter box and above is fixed on the steam water tank; a water supply pump, the machine base is fixed on the steam water tank, and the working end is fixed on the water extraction pipe; a water extraction pump, the machine base is fixed on the steam water tank; a cleaning pipe, one end is fixed on the steam water tank and the other end is fixed above the concentration tank and is fixed on the working end of the water extraction pump; an electric water valve is fixed on the cleaning pipe near the concentration tank end. A first floating valve ball is fixed below the first floating spring; a second floating spring is fixed above the spring seat, and a second floating valve ball is fixed above the second floating spring, and the second floating valve ball is located inside the gas-liquid separation tank.

10. A method for using a concentration device for extracting oyster taurine, which is applied to the concentration device for extracting oyster taurine according to any one of claims 1 to 9, characterized in that, It includes: Step 1: Feed the mother liquor into the concentration tank. Use a liquid distributor to evenly distribute the liquid to the top of the evaporation tubes, ensuring that the mother liquor can form a uniform film on the tube walls. Then, supply steam through the external steam supply pipe to the steam area of the concentration tank to heat the evaporation tubes, and the mother liquor evaporates water when heated. Step 2: Start the gear vacuum pump. The gear vacuum pump creates a negative pressure at the inner top, inner bottom of the concentration tank and inside the evaporation tubes through the vacuum distribution pipe and the vacuum loop pipe, which helps to promote the flow of the viscous mother liquor. This negative pressure takes away the steam inside the evaporation tubes and enters the gas-liquid separation tank. Step 3: Start the circulation pump to re-circulate the steam in the gas-liquid separation tank back to the steam area in the concentration tank, reducing the loss of steam energy. Step 4: Use steam power to enter the steam power pipe. The steam pushes the steam piston to slide inside the steam power pipe, and the steam piston drives the dirt scraping plate and the dirt scraping ring to move. The dirt scraping ring scrapes the dirt on the outer wall of the evaporation tube, preventing uneven heating of the evaporation tubes by the steam. Step 5: Stop the process of concentrating the mother liquor, and clean the inner walls of the liquid distributor and the evaporation tubes in the concentration tank. Since there is heat loss in the steam, the steam condenses into water. The water is guided through the first return water cylinder, the second return water cylinder and the return water pipe and enters the filter box, then through the water extraction pipe and the water supply pump into the steam water tank, and then through the water extraction pump, the cleaning pipe and the electric water valve to effectively clean the inner walls of the liquid distributor and the evaporation tubes. Another kind of mother liquor can be replaced for concentration.

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