Automatic condensing recovery exhaust device

Abstract

The utility model relates to laboratory product technical field, and disclose a kind of automatic condensation recovery waste discharge device, comprising: condensing tower, valve body, valve core, waste liquid receiving bottle and two-way valve seat, condensing tower outer surface is opened condensing vacuum port, condensing water import, condensing water export, steam inlet and steam temperature sensor interface correspondingly, bottom end is equipped with first solvent discharge port, top end is equipped with cleaning port, inner chamber is equipped with funnel type baffle, flow guide baffle and spiral coil pipe, steam temperature sensor interface outer end installs temperature sensor;Valve body outside is equipped with valve core driver and pressure sensor;Waste liquid receiving bottle is connected first solvent discharge port, is equipped with liquid level sensor, waste valve and waste pump, the device can automatically complete waste discharge, reduce the risk that personnel is exposed to chemical solvent, can maintain condensing tower and waste liquid receiving bottle pressure consistent to stabilize experimental condition, prevent pressure fluctuation, and reduce glass piece burst and liquid leakage risk.

Description

Technical Field

[0001] This utility model relates to the field of laboratory product technology, specifically to an automatic condensation recovery and waste discharge device. Background Technology

[0002] Parallel vacuum concentration technology is widely used in food, traditional Chinese medicine, and environmental fields. It is an evaporation technology that accelerates solvent evaporation through heating, vacuum, and shaking. Its supporting solvent recovery system typically includes a vacuum concentrator, a condenser, a waste liquid collection unit, and a vacuum control system. In this system, the vacuum concentrator conducts heat to the sample bottle containing the solvent and accelerates solvent evaporation through shaking. The evaporated solvent vapor is introduced into the condenser through pipelines. The cooling structure in the condenser condenses the vapor into liquid solvent, which is then collected in the waste liquid collection unit to achieve solvent recovery and continuous experimentation.

[0003] Existing solvent recovery systems for parallel vacuum concentration technology have significant shortcomings in the pressure coordination and connection control between the condensation unit and the waste liquid collection unit. Firstly, existing systems lack two-way valve seats with multi-interface connection capabilities and a balancing valve for coordinated pressure adjustment. This makes it difficult to maintain consistent internal pressure between the condensation unit and the waste liquid collection unit when connection is required, easily causing pressure fluctuations that are transmitted through the vacuum pipeline to the sample vials, disrupting the experimentally set pressure conditions and affecting the accuracy of experimental results for volatile samples. Secondly, existing systems lack pressure sensors in critical pathways and lack pressure regulation mechanisms after waste discharge. When the waste liquid collection unit is directly connected to the negative-pressure condensation unit, the pressure difference between them directly causes a sudden pressure change within the condensation unit, interfering with the stability of the condensation process and potentially causing solvent splashing due to pressure fluctuations, further affecting the consistency of experimental conditions. Therefore, an automatic condensation recovery and waste discharge device is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic condensation recovery and waste discharge device to solve the technical problem that when the condensation component and the waste liquid collection component need to be connected, it is difficult to maintain consistent internal pressure, and pressure fluctuations are easily generated at the moment of connection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic condensation recovery and waste discharge device, comprising: A condenser tower and a valve body connected to the lower surface of the condenser tower. The outer surface of the condenser tower is provided with a condensation vacuum port, a condensate inlet, a condensate outlet, a steam inlet, and a steam temperature sensor interface. A first solvent outlet is provided at the center of the bottom of the condenser tower, and a cleaning port is provided at the center of the top of the condenser tower. A funnel-shaped baffle is installed at the lower center of the inner cavity of the condenser tower. The liquid outlet end of the funnel-shaped baffle is connected to the steam inlet end. A flow guide baffle is added to the lower part of the inner cavity of the condenser tower. A spiral coil is installed at the upper part of the inner cavity of the condenser tower. The liquid inlet end and the liquid outlet end of the spiral coil are connected to the condensate inlet and the condensate outlet, respectively. A temperature sensor is installed at the outer end of the steam temperature sensor interface. A glass tube is added to the interface of the temperature sensor. The inner end of the glass tube extends to the top of the funnel-shaped baffle. A valve core is disposed in the inner cavity of the valve body, and a valve core actuator is installed on the outer side of the valve body. The driving end of the valve core actuator is connected to the valve core, and a first central channel is opened in the inner cavity of the valve body. A first port, a second port, a third port, a fourth port and a fifth port are respectively opened on the corresponding positions on the outer side of the valve body. The first port, the second port and the fifth port are connected to the first central channel, and the third port is connected to the fourth port. An air intake valve is connected to the second port and the third port. A second central channel is opened in the inner cavity of the valve core, and a pressure sensor is installed on the outer surface of the valve body. A waste liquid receiving bottle is connected to the bottom end of the first solvent outlet, and a solvent inlet is opened at the center of the top of the waste liquid receiving bottle. A second solvent outlet and a liquid level sensor mounting tube are respectively opened at the top of the waste liquid receiving bottle. A liquid level sensor is installed on the surface of the liquid level sensor mounting tube. A waste liquid pipe is inserted into the inner cavity of the second solvent outlet. A waste discharge valve is connected to the liquid outlet of the second solvent outlet, and a waste discharge pump is connected to the liquid outlet of the waste liquid pipe. A two-way valve seat is located on the lower outer side of the condensing tower. The outer surface of the two-way valve seat is provided with a first interface, a second interface, a third interface, a fourth interface, and a fifth interface respectively. The first interface, the second interface, and the third interface are connected. The fourth interface and the fifth interface are connected. The second interface is connected to the condensing vacuum port. A balancing valve is connected to the end of the third interface. The fourth interface is connected to the inlet of the two-way valve seat. The fifth interface is connected to the fifth port.

[0006] Simultaneous condensation recovery and solvent transfer: The main unit vacuum is divided into two paths through the first interface of the two-way valve seat: one path enters the condenser tower through the second interface of the two-way valve seat and the condenser vacuum port of the condenser tower to evacuate the condenser tower; the other path enters the valve body through the third, fourth, and fifth interfaces of the two-way valve seat and the fifth port of the valve body to evacuate the waste liquid receiving bottle. At this time, the balance valve is in the closed state. The valve core actuator drives the valve core to rotate, making the second central channel of the valve core concentric with the first central channel of the valve body, thus realizing the connection between the condensation tower and the waste liquid receiving bottle; Solvent vapor enters from the vapor inlet of the condenser and is guided by the funnel-shaped baffle; at the same time, cold water enters the spiral coil from the condensate inlet of the condenser and flows out from the condensate outlet, and the spiral coil condenses the solvent vapor. The condensed solvent enters the waste liquid receiving bottle through the first solvent outlet of the condensation tower, the first central channel of the valve body, the second central channel of the valve core, and the solvent inlet of the waste liquid receiving bottle; The temperature sensor monitors the steam temperature inside the funnel-shaped baffle through the steam temperature sensor interface of the condenser tower; the pressure sensor monitors the pressure of the waste liquid receiving bottle. Simultaneous condensation recovery and waste discharge: The liquid level sensor detects that the solvent in the waste liquid receiving bottle has reached the set liquid level through the liquid level sensor mounting tube of the waste liquid receiving bottle. Then, the valve core actuator drives the valve core to rotate in the opposite direction, so that the second central channel of the valve core is perpendicular to the first central channel of the valve body, thus cutting off the connection between the condensing tower and the waste liquid receiving bottle. Cut off the vacuum passage from the two-way valve seat to the valve body; open the air inlet valve, and air enters the waste liquid receiving bottle through the fourth, third, and second ports of the valve body and the first central channel, so that the pressure inside the waste liquid receiving bottle becomes atmospheric pressure; The waste discharge valve opens, the waste discharge pump starts, and the solvent in the waste liquid receiving bottle is discharged by the waste discharge pump through the waste liquid pipe, the second solvent discharge outlet, and the waste discharge valve. During this process, the spiral coil inside the condenser continuously supplies cold water through the condensate inlet and condensate outlet to condense the solvent vapor. The condensed solvent is temporarily stored in the lower part of the condenser, and the flow guide baffle guides the solvent. Pressure balance state: After the waste discharge is completed, the waste discharge pump stops running, and the waste discharge valve and the air inlet valve are closed. The circuit control system queries the host pressure and monitors the pressure in the waste liquid receiving bottle through the pressure sensor. At the same time, the host collects the pressure and compares it with the current collection bottle pressure. The PID control method is used to open the balance valve so that the collection bottle pressure gradually approaches the host feedback pressure, i.e., the condenser pressure. The balancing valve adjusts the pressure inside the waste liquid receiving bottle through the third, fourth, and fifth ports of the two-way valve seat and the fifth port of the valve body until the pressure sensor detects that the pressure inside the waste liquid receiving bottle is the same as the pressure inside the condenser tower, at which point the balancing valve closes. The valve core actuator drives the valve core to rotate, making the second central channel of the valve core concentric with the first central channel of the valve body, reconnecting the condenser tower and the waste liquid receiving bottle, and the system returns to the state of simultaneous condensation recovery and solvent transfer; the flow guide baffle prevents solvent from splashing onto the temperature sensor at the moment of connection.

[0007] Preferably, a filter screen holder is provided inside the condensate inlet, and the outer surface of the filter screen holder is threadedly connected to the inner wall of the condensate inlet. This allows for the detachable installation of the filter screen holder within the condensate inlet, providing convenient conditions for subsequent replacement and maintenance of the cylindrical filter screen, and meeting the installation requirements of the filter unit in the detachable condensate filtration and scraping assembly. Simultaneously, the threaded connection ensures the stability of the connection between the filter screen holder and the condensate inlet, preventing condensate leakage at the connection point and ensuring the stability of the device's operation.

[0008] Preferably, a cylindrical filter screen is installed inside the filter screen holder, and a sealing ring is provided between the condensate inlet and the filter screen holder. The cylindrical filter screen can filter the incoming condensate, remove impurities from the water, reduce the impurity content entering the spiral coil, reduce the probability of scaling on the inner wall of the spiral coil, and achieve the function of improving the anti-scaling function. The sealing ring further enhances the sealing between the condensate inlet and the filter screen holder, avoids resource waste caused by condensate leakage, and ensures the overall reliability of the device operation, meeting the design requirements of the filtration unit.

[0009] Preferably, an adjusting rod and a positioning rod are rotatably connected to both sides of the inner wall of the condensing tower, and an anti-slip handle is rotatably connected to the corresponding position at the top of the condensing tower, with the anti-slip handle connected to the top of the adjusting rod. The anti-slip handle facilitates manual application of force by the operator, preventing slippage during rotation and ensuring the convenience and reliability of the adjusting rod's rotation operation, conforming to the design logic of manual control in the scaling unit. The separate arrangement of the adjusting rod and positioning rod on both sides of the inner wall of the condensing tower provides a bidirectional guiding structure for the subsequent movement of the scaling blades, ensuring stable movement of the scaling blades and not affecting the normal use of the steam inlet and temperature sensor interface.

[0010] Preferably, the surfaces of the adjusting rod and the positioning rod are respectively fitted with adjusting blocks and positioning blocks, and the outer surfaces of the adjusting blocks and positioning blocks are slidably connected to the inner wall of the condensing tower. A spiral groove is formed on the surface of the adjusting rod, and the adjusting block engages with the spiral groove of the adjusting rod. This engagement structure of the spiral groove and the adjusting block converts the rotational motion of the adjusting rod into the axial linear motion of the adjusting block, achieving precise control of the direction and distance of the adjusting block's movement, thus ensuring accurate scraping by the scraping blade. Both the adjusting block and the positioning block are slidably connected to the inner wall of the condensing tower, ensuring stability during their movement and preventing the scraping effect from being affected by shaking. Furthermore, the entire mechanical structure requires no additional power, adapting to the design logic of existing devices without an external pressure source, thus reducing the operating cost of the device.

[0011] Preferably, a scraper is provided at the center of the inner cavity of the condensing tower, and the two sides of the scraper are connected to the adjusting block and the positioning block, respectively. The scraper is in contact with the surface of the spiral coil. The scraper moves in contact with the surface of the spiral coil, which can effectively scrape off the scale on the surface of the spiral coil. The scale can be discharged from the condensate outlet with the condensate water. The spiral coil can be cleaned without disassembling the condensing tower, which solves the problem of needing to disassemble the tower for cleaning after the existing spiral coil has scaled up, and reduces maintenance costs. At the same time, it avoids the situation where the thermal conductivity of the spiral coil decreases due to scale, and ensures the condensation effect, which is especially suitable for high hardness condensate water source scenarios. In addition, the setting of the scraper does not affect the original connection between the spiral coil and the condensate inlet and condensate outlet, which meets the requirements of the new structure and the original structure.

[0012] Compared with the prior art, the present invention provides an automatic condensation recovery and waste discharge device, which has the following beneficial effects: This automatic condensation recovery and waste discharge device monitors the amount of waste liquid through a liquid level sensor on the waste liquid receiving bottle. When the liquid level reaches the standard, the valve core actuator can automatically drive the valve core to rotate, cutting off the connection between the condensation tower and the waste liquid receiving bottle. At the same time, it works with the air inlet valve to adjust the pressure of the waste liquid receiving bottle to atmospheric pressure, and then discharges the waste liquid through the waste discharge valve and waste discharge pump. The whole process requires no manual operation, reducing the risk of personnel being exposed to chemical solvents. With the help of the multi-port connection structure of the two-way valve seat and the adjustment function of the balance valve, the condenser and the waste liquid receiving bottle can always be in the same pressure environment; and when the two are connected through the second central channel of the valve core and the first central channel of the valve body, the pressure is consistent and will not fluctuate, thus avoiding pressure changes from being transmitted to the sample and ensuring stable experimental conditions. The pressure sensor on the valve body can monitor the pressure in the waste liquid receiving bottle and the condenser in real time. After the waste discharge is completed, the circuit control system can adjust the pressure in the waste liquid receiving bottle through the balance valve. After the pressure sensor detects that the pressures of the two are consistent, the valve core is driven to connect the condenser and the waste liquid receiving bottle, which effectively prevents pressure fluctuations in the condenser caused by pressure difference. When the waste liquid receiving bottle is in solvent transfer mode, it can be linked with the main vacuum system through the vacuum passage of the two-way valve seat to maintain a negative pressure environment; when discharging waste, only the waste discharge pump is used to assist in the discharge, without relying on the positive pressure pump, which greatly reduces the risk of glass parts breaking or liquid leakage under positive pressure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall internal structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the valve body of this utility model; Figure 4 This is a schematic diagram of the internal structure of the waste liquid receiving bottle of this utility model; Figure 5 This is a schematic diagram of the internal structure of the two-way valve seat of this utility model; Figure 6 This is a schematic diagram of the internal structure of the condensate inlet of this utility model.

[0014] In the diagram: 1. Condensation tower; 101. Condensation vacuum port; 102. Condensate inlet; 103. Condensate outlet; 104. First solvent outlet; 105. Steam inlet; 106. Steam temperature sensor interface; 107. Cleaning port; 108. Funnel-shaped baffle; 109. Flow guide baffle; 2. Valve body; 201. First central channel; 202. First port; 203. Second port; 204. Third port; 205. Fourth port; 206. Fifth port; 3. Valve core; 301. Second central channel; 4. Valve core actuator; 5. Waste liquid receiving bottle; 501. Solvent inlet 502. Second solvent outlet; 503. Waste liquid pipe; 504. Liquid level sensor mounting pipe; 6. Pressure sensor; 7. Air inlet valve; 8. Waste discharge valve; 9. Two-way valve seat; 901. First interface; 902. Second interface; 903. Third interface; 904. Fourth interface; 905. Fifth interface; 10. Balance valve; 11. Waste discharge pump; 12. Liquid level sensor; 13. Cylindrical filter screen; 14. Temperature sensor; 15. Filter screen fixing seat; 16. Anti-slip handle; 17. Adjusting rod; 18. Adjusting block; 19. Positioning rod; 20. Positioning block; 21. Scraper. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model provides a technical solution: an automatic condensation recovery and waste discharge device, comprising: (Please refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The condenser includes a condenser tower 1 and a valve body 2 connected to the lower surface of the condenser tower 1. The outer surface of the condenser tower 1 is provided with a condensation vacuum port 101, a condensate inlet 102, a condensate outlet 103, a steam inlet 105, and a steam temperature sensor interface 106. A first solvent outlet 104 is located at the center of the bottom of the condenser tower 1, and a cleaning port 107 is located at the center of the top of the condenser tower 1. A funnel-shaped baffle 108 is installed at the lower center of the inner cavity of the condenser tower 1. The liquid outlet of 08 is connected to the steam inlet of 105, and a flow guide baffle 109 is added to the lower part of the inner cavity of the condenser tower 1. A spiral coil is installed in the upper part of the inner cavity of the condenser tower 1. The liquid inlet and liquid outlet of the spiral coil are connected to the condensate inlet 102 and the condensate outlet 103, respectively. A temperature sensor 14 is installed at the outer end of the steam temperature sensor interface 106. A glass tube is added to the interface of the temperature sensor 14, and the inner end of the glass tube extends to the top of the funnel-shaped baffle 108. A valve core 3 is disposed in the inner cavity of the valve body 2, and a valve core actuator 4 is installed on the outer side of the valve body 2. The driving end of the valve core actuator 4 is connected to the valve core 3, and a first central channel 201 is opened in the inner cavity of the valve body 2. A first port 202, a second port 203, a third port 204, a fourth port 205 and a fifth port 206 are respectively opened on the outer side of the valve body 2. The first port 202, the second port 203 and the fifth port 206 are connected to the first central channel 201, and the third port 204 is connected to the fourth port 205. An air intake valve 7 is connected to the second port 203 and the third port 204. A second central channel 301 is opened in the inner cavity of the valve core 3, and a pressure sensor 6 is installed on the outer surface of the valve body 2. Waste liquid receiving bottle 5 is connected to the bottom end of the first solvent outlet 104. A solvent inlet 501 is opened at the center of the top of the waste liquid receiving bottle 5. A second solvent outlet 502 and a liquid level sensor mounting tube 504 are respectively opened at the top of the waste liquid receiving bottle 5. A liquid level sensor 12 is installed on the surface of the liquid level sensor mounting tube 504. A waste liquid pipe 503 is inserted into the inner cavity of the second solvent outlet 502. A waste discharge valve 8 is connected to the liquid outlet of the second solvent outlet 502. A waste discharge pump 11 is connected to the liquid outlet of the waste liquid pipe 503. A two-way valve seat 9 is located on the lower outer side of the condensing tower 1. The outer surface of the two-way valve seat 9 is provided with a first interface 901, a second interface 902, a third interface 903, a fourth interface 904, and a fifth interface 905 respectively. The first interface 901, the second interface 902 are connected to the third interface 903, the fourth interface 904 is connected to the fifth interface 905, the second interface 902 is connected to the condensing vacuum port 101, and a balance valve 10 is connected to the end of the third interface 903. The fourth interface 904 is connected to the inlet of the two-way valve seat 9, and the fifth interface 905 is connected to the fifth port 206.

[0017] Simultaneous condensation recovery and solvent transfer: The main vacuum is divided into two paths through the first port 901 of the two-way valve seat 9: one path enters the condenser 1 through the second port 902 of the two-way valve seat 9 and the condensation vacuum port 101 of the condenser 1 to evacuate the condenser 1, at which time the balance valve is closed; the other path enters the valve body 2 through the third port 903, the fourth port 904, the fifth port 905 of the two-way valve seat 9 and the fifth port 206 of the valve body 2 to evacuate the waste liquid receiving bottle 5. The valve core actuator 4 drives the valve core 3 to rotate, making the second central channel 301 of the valve core 3 concentric with the first central channel 201 of the valve body 2, thereby realizing the connection between the condensation tower 1 and the waste liquid receiving bottle 5. Solvent vapor enters from the vapor inlet 105 of the condenser tower 1 and is guided by the funnel-shaped baffle 108; at the same time, cold water enters the spiral coil from the condensate inlet 102 of the condenser tower 1 and flows out from the condensate outlet 103, and the spiral coil condenses the solvent vapor. The condensed solvent enters the waste liquid receiving bottle 5 through the first solvent outlet 104 of the condensation tower 1, the first central channel 201 of the valve body 2, the second central channel 301 of the valve core 3, and the solvent inlet 501 of the waste liquid receiving bottle 5. Temperature sensor 14 monitors the steam temperature inside the funnel-shaped baffle 108 through the steam temperature sensor interface 106 of the condenser tower 1; pressure sensor 6 monitors the pressure inside the valve body 2. Simultaneous condensation recovery and waste discharge: When the liquid level sensor 12 detects that the solvent in the waste liquid receiving bottle 5 has reached the set liquid level through the liquid level sensor mounting tube 504 of the waste liquid receiving bottle 5, the valve core driver 4 drives the valve core 3 to rotate in the opposite direction, so that the second central channel 301 of the valve core 3 is perpendicular to the first central channel 201 of the valve body 2, thus cutting off the connection between the condensing tower 1 and the waste liquid receiving bottle 5. Cut off the vacuum passage from the two-way valve seat 9 to the valve body 2; open the air inlet valve 7, and air enters the waste liquid receiving bottle 5 through the fourth port 205, the third port 204, the second port 203 and the first central channel 201 of the valve body 2, so that the pressure inside the waste liquid receiving bottle 5 becomes normal pressure. When the waste discharge valve 8 is opened, the waste discharge pump 11 is started, and the solvent in the waste liquid receiving bottle 5 is discharged by the waste discharge pump 11 through the waste liquid pipe 503, the second solvent discharge outlet 502, and the waste discharge valve 8. During this process, the spiral coil in the condenser tower 1 continuously introduces cold water through the condensate inlet 102 and the condensate outlet 103 to condense the solvent vapor. The condensed solvent is temporarily stored in the lower part of the condenser tower 1, and the flow guide baffle 109 guides the solvent. Pressure balance state: After the waste discharge is completed, the waste discharge pump stops running, and the waste discharge valve and the air inlet valve are closed. The circuit control system queries the host pressure and monitors the pressure in the waste liquid receiving bottle through the pressure sensor. At the same time, the host collects the pressure and compares it with the current collection bottle pressure. The PID control method is used to open the balance valve so that the collection bottle pressure gradually approaches the host feedback pressure, i.e., the condenser pressure. The balancing valve adjusts the pressure inside the waste liquid receiving bottle through the third, fourth, and fifth ports of the two-way valve seat and the fifth port of the valve body until the pressure sensor detects that the pressure inside the waste liquid receiving bottle is the same as the pressure inside the condenser tower, at which point the balancing valve closes. The valve core actuator 4 drives the valve core 3 to rotate, making the second central channel 301 of the valve core 3 concentric with the first central channel 201 of the valve body 2, and the condenser tower 1 and the waste liquid receiving bottle 5 are reconnected, and the system returns to the state of simultaneous condensation recovery and solvent transfer; the flow guide baffle 109 prevents solvent from splashing onto the temperature sensor 14 at the moment of connection. The waste liquid level is automatically detected by the liquid level sensor 12, the valve core actuator 4 drives the valve core 3 to switch the connection state, the waste discharge pump 11 automatically completes the waste discharge, and the balance valve 10 automatically adjusts the pressure. The whole process does not require manual supervision and intervention, completely avoiding manual dumping operations. At the same time, it reduces the time that personnel are exposed to chemical solvents, reduces the impact of solvents on personnel health, and reduces the safety hazards of dumping and transfer operations. During the condensation recovery and solvent transfer stage, the second central channel 301 of the valve core 3 and the first central channel 201 of the valve body 2 are concentric to connect the condensation tower 1 and the waste liquid receiving bottle 5. The two-way valve seat 9 and the balance valve 10 ensure that the pressure of the two is consistent and there is no pressure fluctuation. After the waste is discharged, the balance valve 10 and the pressure sensor 6 are connected to achieve pressure balance before connecting again to avoid sudden pressure changes in the condensation tower 1, ensure the stability of experimental conditions at the sample, and prevent the experimental results of volatile samples from deviating due to changes in conditions. During the condensation and solvent transfer stages, the waste liquid receiving bottle 5 maintains a negative pressure state through the vacuum passage of the two-way valve seat 9. Compared with the positive pressure pump transfer method of the prior art, this greatly reduces the risk of explosion and liquid leakage when the glass parts are broken or the connection is not airtight. At the same time, the funnel-shaped baffle 108 guides the steam and the flow guide baffle 109 prevents solvent splashing, further improving the safety of the device operation. In addition, automatic waste discharge can avoid the residue of low-boiling-point solvent from the previous experiment, and prevent the safety hazard and experimental failure risk of solvent boiling in the waste liquid bottle in the next experiment. The device achieves a negative pressure environment for the condenser tower 1 and waste liquid receiving bottle 5 through the main unit vacuum, and provides waste discharge power through the waste discharge pump 11. It does not require external positive pressure or additional negative pressure source, which simplifies the external connection structure of the device and reduces the cost of equipment use and maintenance. The spiral coil inside the condenser 1 continuously supplies cold water through the condensate inlet 102 and the condensate outlet 103, providing a stable low-temperature environment for the solvent vapor and ensuring condensation efficiency. During the waste discharge stage, the lower part of the condenser 1 can temporarily store the condensed solvent without interrupting the condensation process, ensuring the continuity of solvent recovery and improving the overall experimental efficiency.

[0018] Please see Figure 5 A filter screen holder 15 is installed inside the condensate inlet 102, and the outer surface of the filter screen holder 15 is threadedly connected to the inner wall of the condensate inlet 102. During installation, rotating the filter screen holder 15 allows it to enter and be fixed inside the condensate inlet 102 through the threaded connection between its outer surface and the inner wall. During disassembly, rotating the filter screen holder 15 in the opposite direction allows it to be dislodged from the condensate inlet 102 through the threaded connection. This allows for the detachable installation of the filter screen holder 15 within the condensate inlet 102, facilitating the replacement and maintenance of the cylindrical filter screen 13 and meeting the installation requirements of the filter unit in the detachable condensate filtration and scraping assembly. Simultaneously, the threaded connection ensures the stability of the connection between the filter screen holder 15 and the condensate inlet 102, preventing condensate leakage at the connection point and ensuring the stability of the device's operation.

[0019] A cylindrical filter screen 13 is installed inside the filter screen holder 15, and a sealing ring is provided between the condensate inlet 102 and the filter screen holder 15. After condensate enters the condensate inlet 102, it flows to the filter screen holder 15, and the filter screen holder 15 drives the condensate through the cylindrical filter screen 13 inside its cavity. During the flow of condensate, the sealing ring prevents condensate from seeping out from the gap between the condensate inlet 102 and the filter screen holder 15 by its own fit with the condensate inlet 102 and the filter screen holder 15. The cylindrical filter screen 13 can filter the incoming condensate, remove impurities from the water, reduce the impurity content entering the spiral coil, reduce the probability of scaling on the inner wall of the spiral coil, and achieve the function of improving the anti-scaling function. The sealing ring further enhances the sealing between the condensate inlet 102 and the filter screen holder 15, avoids resource waste caused by condensate leakage, and ensures the overall reliability of the device operation, meeting the design requirements of the filtration unit.

[0020] Please see Figure 2The inner walls of the condensing tower 1 are respectively rotatably connected to the adjusting rod 17 and the positioning rod 19, and the anti-slip handle 16 is rotatably connected to the top of the condensing tower 1, and the anti-slip handle 16 is connected to the top of the adjusting rod 17. The rotating anti-slip handle 16, connected to the top of the adjusting rod 17, drives the adjusting rod 17 to rotate on one side of the inner wall of the condensing tower 1. The positioning rod 19 is fixedly installed on the other side of the inner wall of the condensing tower 1, and its position does not change with the movement of the anti-slip handle 16 and the adjusting rod 17, maintaining its fixed state. The anti-slip handle 16 is designed to facilitate manual force application by the operator, avoiding slippage during rotation, ensuring the convenience and reliability of the rotating operation of the adjusting rod 17, and conforming to the design logic of manual control in the scraping unit. The separate arrangement of the adjusting rod 17 and the positioning rod 19 on both sides of the inner wall of the condensing tower 1 provides a bidirectional guiding structure for the subsequent movement of the scraping blade 21, ensuring that the scraping blade 21 can move stably and does not affect the normal use of the steam inlet 105 and the steam temperature sensor interface 106.

[0021] Adjusting block 18 and positioning block 20 are respectively fitted on the surfaces of adjusting rod 17 and positioning rod 19. The outer surfaces of adjusting block 18 and positioning block 20 are slidably connected to the inner wall of condensing tower 1. A spiral groove is opened on the surface of adjusting rod 17, and the spiral groove of adjusting block 18 engages with the spiral groove of adjusting rod 17. When the adjusting rod 17 rotates, the engagement between the spiral groove on the surface of the adjusting rod 17 and the adjusting block 18 causes the adjusting block 18 to slide along the axial direction of the adjusting rod 17 on the inner wall of the condensing tower 1. During the sliding process of the adjusting block 18, the positioning block 20 is driven to slide synchronously along the axial direction of the positioning rod 19 on the inner wall of the condensing tower 1 through its engagement with the positioning rod 19. The engagement structure between the spiral groove and the adjusting block 18 can convert the rotational motion of the adjusting rod 17 into the axial linear motion of the adjusting block 18, realizing precise control of the direction and distance of the movement of the adjusting block 18, and providing a guarantee for the precise scraping of the scraping blade 21. Both the adjusting block 18 and the positioning block 20 are slidably connected to the inner wall of the condensing tower 1, ensuring the stability of their movement and avoiding the impact of shaking on the scraping effect. Moreover, the entire mechanical structure does not require additional power, which is compatible with the design logic of existing devices without external pressure sources and reduces the operating cost of the device.

[0022] A scraper 21 is provided in the center of the inner cavity of the condenser tower 1, and the two sides of the scraper 21 are connected to the adjusting block 18 and the positioning block 20 respectively. The scraper 21 is in contact with the surface of the spiral coil. When the adjusting block 18 and the positioning block 20 slide axially, the adjusting block 18 and the positioning block 20 are connected to both sides of the scraper 21, respectively, driving the scraper 21 to move axially along the spiral coil. During the movement of the scraper 21, it scrapes off the scale on the surface of the spiral coil by adhering to the surface of the spiral coil itself. The scraper 21 moves in contact with the surface of the spiral coil, which can effectively scrape off the scale on the surface of the spiral coil. The scale can be discharged from the condensate outlet 103 with the condensate water. The spiral coil can be cleaned without disassembling the condensing tower 1, which solves the problem of needing to disassemble the tower for cleaning after the spiral coil has scaled up, and reduces maintenance costs. At the same time, it avoids the situation where the thermal conductivity of the spiral coil decreases due to scale, ensuring the condensation effect, especially suitable for high hardness condensate water source scenarios. In addition, the setting of the scraper 21 does not affect the original connection between the spiral coil and the condensate inlet 102 and the condensate outlet 103, which meets the requirements of the new structure and the original structure.

[0023] In this scheme: the main vacuum is divided into two paths through the first interface 901 of the two-way valve seat 9: one path enters the condenser tower 1 through the second interface 902 of the two-way valve seat 9 and the condensation vacuum port 101 of the condenser tower 1 to evacuate the condenser tower 1; the other path enters the valve body 2 through the third interface 903, the fourth interface 904, the fifth interface 905 of the two-way valve seat 9 and the fifth port 206 of the valve body 2 to evacuate the waste liquid receiving bottle 5; the valve core driver 4 drives the valve core 3 to rotate, so that the second central channel 301 of the valve core 3 is concentric with the first central channel 201 of the valve body 2, realizing the connection between the condenser tower 1 and the waste liquid receiving bottle 5; Solvent vapor enters from the vapor inlet 105 of the condenser tower 1 and is guided by the funnel-shaped baffle 108. Simultaneously, cold water enters from the condensate inlet 102 of the condenser tower 1 and flows to the filter screen holder 15. The filter screen holder 15 drives the condensate through the cylindrical filter screen 13 inside its cavity and then into the spiral coil. Subsequently, the cold water flows out from the condensate outlet 103. The spiral coil condenses the solvent vapor. The sealing ring prevents the condensate from seeping out from the gap between the condensate inlet 102 and the filter screen holder 15 by its own fit with the condensate inlet 102 and the filter screen holder 15. The condensed solvent enters the waste liquid receiving bottle 5 through the first solvent outlet 104 of the condenser tower 1, the first central channel 201 of the valve body 2, the second central channel 301 of the valve core 3, and the solvent inlet 501 of the waste liquid receiving bottle 5. Temperature sensor 14 monitors the steam temperature inside the funnel-shaped baffle 108 through the steam temperature sensor interface 106 of the condenser tower 1; pressure sensor 6 monitors the pressure inside the valve body 2; when the liquid level sensor 12 detects that the solvent in the waste liquid receiving bottle 5 has reached the set liquid level through the liquid level sensor mounting pipe 504 of the waste liquid receiving bottle 5, the valve core driver 4 drives the valve core 3 to rotate in the opposite direction, so that the second central channel 301 of the valve core 3 is perpendicular to the first central channel 201 of the valve body 2, cutting off the connection between the condenser tower 1 and the waste liquid receiving bottle 5; When the inlet valve 7 is opened, air enters the waste liquid receiving bottle 5 through the fourth port 205, the third port 204, the second port 203 of the valve body 2 and the first central channel 201, causing the pressure inside the waste liquid receiving bottle 5 to become atmospheric pressure. The waste discharge valve 8 is opened, and the waste discharge pump 11 starts. The solvent in the waste liquid receiving bottle 5 is discharged by the waste discharge pump 11 through the waste liquid pipe 503, the second solvent discharge outlet 502, and the waste discharge valve 8. During this process, the spiral coil in the condenser tower 1 continuously supplies cold water through the condensate inlet 102 and the condensate outlet 103 to condense the solvent vapor. The condensed solvent is temporarily stored in the lower part of the condenser tower 1, and the guide baffle 109 guides the solvent. After waste discharge is completed, the waste discharge pump 11 stops operating, and the waste discharge valve... 8. The intake valve 7 is closed; the circuit control system queries the host pressure and monitors the pressure inside the valve body 2 through the pressure sensor 6, while controlling the balance valve 10 to open; the balance valve 10 adjusts the pressure inside the waste liquid receiving bottle 5 through the third port 903, fourth port 904, and fifth port 905 of the two-way valve seat 9 and the fifth port 206 of the valve body 2 until the pressure sensor 6 detects that the pressure inside the waste liquid receiving bottle 5 is consistent with the pressure inside the condenser tower 1; the valve core driver 4 drives the valve core 3 to rotate, so that the second central channel 301 of the valve core 3 is concentric with the first central channel 201 of the valve body 2, and the condenser tower 1 and the waste liquid receiving bottle 5 are reconnected; the flow guide baffle 109 prevents solvent from splashing onto the temperature sensor 14 at the moment of connection; When the filter screen holder 15 needs to be installed, rotate the filter screen holder 15. Through the threaded engagement between the outer surface of the filter screen holder 15 and the inner wall of the condensate inlet 102, the filter screen holder 15 is driven into the inner cavity of the condensate inlet 102 and fixed. When the filter screen holder 15 needs to be disassembled, rotate the filter screen holder 15 in the opposite direction. Through the aforementioned threaded engagement, the filter screen holder 15 is driven out of the inner cavity of the condensate inlet 102. When the spiral coil needs to be scraped, rotate the anti-slip handle 16. Through the connection between the anti-slip handle 16 and the top of the adjusting rod 17, the adjusting rod 17 rotates on one side of the inner wall of the condensation tower 1. The adjusting rod 17 rotates... When the adjusting rod 17 engages with the adjusting block 18 via the spiral groove on its surface, the adjusting block 18 slides along the axial direction of the adjusting rod 17 on the inner wall of the condensing tower 1. During the sliding of the adjusting block 18, the positioning block 20 slides synchronously along the axial direction of the positioning rod 19 on the inner wall of the condensing tower 1 through its engagement with the positioning rod 19. When the adjusting block 18 and the positioning block 20 slide along the axial direction, the adjusting block 18 and the positioning block 20 are connected to both sides of the scraper 21, respectively, causing the scraper 21 to move along the axial direction of the spiral coil. During the movement of the scraper 21, the scraper 21 scrapes off the scale on the surface of the spiral coil by adhering to the surface of the spiral coil itself.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic condensation recovery and waste discharge device, characterized in that, include: A condenser tower (1) and a valve body (2) connected to the lower surface of the condenser tower (1) are provided. A condensation vacuum port (101), a condensate inlet (102), a condensate outlet (103), a steam inlet (105), and a steam temperature sensor interface (106) are respectively provided on the outer surface of the condenser tower (1). A first solvent outlet (104) is provided at the center of the bottom end of the condenser tower (1), and a cleaning port (107) is provided at the center of the top end of the condenser tower (1). A funnel-shaped baffle (108) is installed at the lower part of the center of the inner cavity of the condenser tower (1). The liquid outlet end of the funnel-shaped baffle (108) is connected to the steam inlet end of the steam inlet (105), and a flow guide baffle (109) is added to the lower part of the inner cavity of the condenser (1), and a spiral coil is installed on the upper part of the inner cavity of the condenser (1), and the liquid inlet end and liquid outlet end of the spiral coil are connected to the condensate inlet (102) and the condensate outlet (103) respectively, and a temperature sensor (14) is installed on the outer end of the steam temperature sensor interface (106), and a glass tube is added to the interface of the temperature sensor (14), and the inner end of the glass tube extends to the top of the funnel-shaped baffle (108); A valve core (3) is disposed in the inner cavity of the valve body (2), and a valve core actuator (4) is installed on the outer side of the valve body (2). The driving end of the valve core actuator (4) is connected to the valve core (3), and a first central channel (201) is opened in the inner cavity of the valve body (2). A first port (202), a second port (203), a third port (204), a fourth port (205) and a fifth port (206) are respectively opened on the outer side of the valve body (2). The first port (202), the second port (203) and the fifth port (206) are connected to the first central channel (201), and the third port (204) is connected to the fourth port (205). An air intake valve (7) is connected to the second port (203) and the third port (204). A second central channel (301) is opened in the inner cavity of the valve core (3), and a pressure sensor (6) is installed on the outer surface of the valve body (2). Waste liquid receiving bottle (5) is connected to the bottom end of the first solvent outlet (104), and a solvent inlet (501) is opened at the center of the top of the waste liquid receiving bottle (5). A second solvent outlet (502) and a liquid level sensor mounting tube (504) are respectively opened at the top of the waste liquid receiving bottle (5). A liquid level sensor (12) is installed on the surface of the liquid level sensor mounting tube (504). A waste liquid pipe (503) is inserted into the inner cavity of the second solvent outlet (502). A waste discharge valve (8) is connected to the liquid outlet of the second solvent outlet (502), and a waste discharge pump (11) is connected to the liquid outlet of the waste liquid pipe (503). A two-way valve seat (9) is located on the lower outer side of the condensing tower (1). The outer surface of the two-way valve seat (9) is provided with a first interface (901), a second interface (902), a third interface (903), a fourth interface (904), and a fifth interface (905). The first interface (901), the second interface (902), and the third interface (903) are connected. The fourth interface (904) and the fifth interface (905) are connected. The second interface (902) is connected to the condensing vacuum port (101). A balance valve (10) is connected to the end of the third interface (903). The fourth interface (904) is connected to the inlet of the two-way valve seat (9). The fifth interface (905) is connected to the fifth port (206).

2. The automatic condensation recovery and waste discharge device according to claim 1, characterized in that: The inner cavity of the condensate inlet (102) is provided with a filter screen fixing seat (15), and the outer surface of the filter screen fixing seat (15) is threadedly connected to the inner wall of the condensate inlet (102).

3. The automatic condensation recovery and waste discharge device according to claim 2, characterized in that: The inner cavity of the filter screen fixing seat (15) is equipped with a cylindrical filter screen (13), and a sealing ring is provided between the condensate inlet (102) and the filter screen fixing seat (15).

4. The automatic condensation recovery and waste discharge device according to claim 1, characterized in that: The inner walls of the condensing tower (1) are respectively rotatably connected to an adjusting rod (17) and a positioning rod (19), and a non-slip handle (16) is rotatably connected to the top of the condensing tower (1), and the non-slip handle (16) is connected to the top of the adjusting rod (17).

5. An automatic condensation recovery and waste discharge device according to claim 4, characterized in that: The adjustment rod (17) and the positioning rod (19) are respectively fitted with adjustment blocks (18) and positioning blocks (20), and the outer surfaces of adjustment blocks (18) and positioning blocks (20) are slidably connected to the inner wall of the condensation tower (1), and a spiral groove is opened on the surface of the adjustment rod (17), and the spiral groove of the adjustment block (18) engages with the adjustment rod (17).

6. The automatic condensation recovery and waste discharge device according to claim 5, characterized in that: The inner cavity of the condenser tower (1) is provided with a scraper (21), and the two sides of the scraper (21) are connected to the adjusting block (18) and the positioning block (20) respectively. The scraper (21) is in contact with the surface of the spiral coil.

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