A device and method for recycling deuterium-depleted wastewater

Abstract

The invention discloses a deuterium-low water wastewater recycling device and method, comprising a deuterium-low water preparation device, a cooling tower and a water storage tank. The deuterium-low water preparation device comprises, from bottom to top, a distillation tank, a gas-liquid separation tank, a collection chamber and a condensation chamber, which are connected in sequence. The distillation tank is provided with a wastewater discharge outlet, the wastewater discharge outlet is connected to the water storage tank, the water storage tank is connected to the condensation chamber, the condensation chamber is connected to the cooling tower, and the cooling tower is connected to the water storage tank. All components of the device are connected by pipelines. The invention has a simple structure and is easy to operate. It can effectively collect and reuse wastewater and condensed water in the produced deuterium-low water, achieve zero water discharge in the production process, make full use of water resources, and save water. Through the technical solution, a single water-making device can effectively save more than 576 liters of wastewater discharge and more than 24,720 liters of condensed water discharge per day, effectively saving water resources and water costs, and completely achieving zero wastewater discharge.

Description

Technical Field

[0001] The present invention relates to the technical field of deuterium-depleted water production, and in particular to a device and method for recycling deuterium-depleted water wastewater. Background Art

[0002] Deuterium-depleted water refers to water with a deuterium content below 150 ppm. Experimental studies have demonstrated that deuterium-depleted water has numerous beneficial biological effects on the human body, including cell activation, immune enhancement, and cancer prevention. The main methods for large-scale production of deuterium-depleted water include electrolysis, distillation, and water / hydrogen dual-temperature exchange. Distillation is widely used due to its simplicity and maturity, as it requires no catalysts or chemical reagents. Deuterium-depleted water is produced by distillation in a tower equipped with several trays or packings. The liquid and vapor phases flow in countercurrents within the tower. As the vapor rises, H₂O, due to its higher volatility, is gradually enriched, while D₂O, due to its lower volatility, is gradually enriched. The vapor is condensed at the top of the tower and refluxed back into the tower. A distillation tank at the bottom evaporates a portion of the liquid to provide the upward airflow. However, existing distillation equipment for producing deuterium-depleted water presents the following technical issues during actual use: Deuterium-enriched water is produced in the distillation tower, and this deuterium-enriched water is directly discharged as wastewater. While this direct discharge does not pollute the environment, it does waste water resources. A technical solution is urgently needed to fully utilize this deuterium-enriched water resource and achieve zero wastewater discharge from production processes. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a deuterium-depleted water wastewater recycling device and method, which is a device for self-circulation and reuse of deuterium-depleted water wastewater during the production process.

[0004] The present invention is achieved through the following technical solutions:

[0005] The invention discloses a deuterium-depleted water wastewater recycling device, which comprises a deuterium-depleted water preparation device, a cooling tower and a water storage tank. The deuterium-depleted water preparation device comprises, from bottom to top, a distillation tank, a gas-liquid separation tank, a collection chamber and a condensation chamber, which are connected in sequence. The distillation tank is provided with a wastewater discharge outlet, which is connected to the water storage tank, which is connected to the condensation chamber, which is connected to the cooling tower, which is connected to the water storage tank. All components of the device are connected by pipelines.

[0006] As a further improvement, a diaphragm vacuum pump is provided on the pipe between the wastewater outlet and the water storage tank described in the present invention, close to the wastewater outlet end; a temperature monitoring point is provided on the pipe between the diaphragm vacuum pump and the water storage tank, and close to the diaphragm vacuum pump end; a temperature sensor is provided on the condensation chamber, and the temperature sensor signal is connected to the main control processor.

[0007] As a further improvement, the pipeline between the water storage tank and the condensing chamber described in the present invention is the condensing water inlet pipeline, the pipeline between the condensing chamber and the water storage tank is the condensing chamber outlet pipeline, a branch point is provided on the condensing water inlet pipeline near the water storage tank section, a pipeline centrifugal pump is provided between the branch point and the water storage tank, a valve is provided between the pipeline centrifugal pump and the water storage tank, the condensing water inlet pipeline is divided into pipeline one, pipeline two and pipeline three through the branch point, three branch pipelines, pipeline one is connected to the municipal pipeline network, and a valve is provided on pipeline one.

[0008] As a further improvement, a convergence point is provided on the condensate inlet pipe of the present invention near the condensation chamber section. The convergence point is where pipe two and pipe three converge, and a T-shaped ball valve is provided on the convergence point.

[0009] As a further improvement, a heat exchanger is provided on pipeline three described in the present invention, the heat exchanger is connected to the refrigeration compressor, a temperature sensor is provided on the refrigeration compressor, and temperature meters are provided on the condensation water inlet pipeline and the condensation water outlet pipeline near the condensation chamber section.

[0010] As a further improvement, a cooling tower is provided on the condensate outlet pipe described in the present invention, located between the thermometer and the water storage tank. The cooling tower is cooled by fiberglass heat sinks and negative pressure fans. A temperature detection point is provided near the outlet end of the cooling tower, and a control relay connected to the WFI networking module is provided on the temperature detection point.

[0011] The present invention also discloses a method for recycling deuterium-depleted wastewater of a deuterium-depleted wastewater recycling device, comprising the following steps:

[0012] 1) During the production of deuterium-depleted water, the high-deuterium water produced in the distillation tank is discharged from the wastewater outlet through a diaphragm vacuum pump and flows through a pipeline to the water storage tank;

[0013] 2) Open the valve of pipeline 1, and the municipal water flows through pipeline 2 to the condensing room as condensed water. It is then cooled by the cooling tower in the condensed water outlet pipeline and then transported to the water storage tank for collection. When the water storage tank reaches the specified water level, close the valve of pipeline 1;

[0014] 3) Open the pipeline centrifugal pump and the valve closest to the water storage tank, and the water in the water storage tank provides condensed water to the condensing chamber through pipeline 2;

[0015] 4) When the temperature indicator on the thermometer closest to the condensing chamber on the condensing water inlet pipe exceeds the limit, the T-type reversing ball valve is operated to change the water supply pipe 2 of the condensing chamber to pipe 3. The water in the water storage tank is pressurized by the pipeline centrifugal pump and then transported to the heat exchanger through pipe 3. The heat exchanger uses the refrigeration compressor to cool the water temperature, so that the water temperature is controlled before being transported to the condensing chamber through the pipe;

[0016] 5) The high-temperature condensed water coming out of the condensation chamber is cooled by the cooling tower on the outlet pipe of the condensation chamber, and then flows back into the water storage tank, achieving zero discharge and recycling of low-deuterium water wastewater.

[0017] As a further improvement, the temperature monitoring point on the side of the diaphragm vacuum pump described in the present invention is connected to a WiFi networking module for real-time temperature transmission and low-temperature alarm. The low temperature is below 25°C. The temperature sensor on the condensation chamber will be forced to shut down after the temperature exceeds 50°C to ensure that the deuterium value of the produced low-deuterium water reaches the set value.

[0018] As a further improvement, the high-temperature water generated after the water in the condensation chamber of the present invention is condensed and consumed is 35-42°C, and is cooled to below 35°C after heat dissipation through a cooling tower.

[0019] As a further improvement, in step 4) described in the present invention, the limit value is that when the inlet temperature of the condensate exceeds 28°C or the outlet temperature exceeds 42°C, the T-shaped ball valve is opened to change the water path of the water pipe; the heat exchanger uses the refrigeration compressor to perform water temperature heat exchange cooling, and the temperature sensor is controlled at 18-24°C.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The present invention provides a deuterium-low water wastewater recycling device. The device is provided with a wastewater outlet on the distillation tank so that the generated high-deuterium water is discharged from the wastewater outlet. At the same time, a water storage tank is designed. After the high-deuterium water is discharged, it flows into the water storage tank. After the water temperature of the water storage tank is adjusted and monitored, it is pressurized by a pipeline centrifugal pump and pumped out to a condensation chamber for use as condensed water. By providing a condensed water inlet pipeline between the water storage tank and the condensation chamber and a condensed water outlet pipeline between the condensation chamber and the water storage tank, the device has a simple structure and is easy to operate. The device can effectively collect and reuse the wastewater and condensed water in the produced low-deuterium water, thereby achieving zero water discharge in the production process, making full use of water resources, and saving water.

[0022] 2. The diaphragm vacuum pump next to the wastewater outlet is used to pump out the deuterium-rich water in the distillation tank to the water storage tank.

[0023] 3. A temperature monitoring point is provided on the pipe near the end of the diaphragm vacuum pump. A control relay is provided on the temperature monitoring point. The control relay is connected to the WiFi networking module for real-time temperature transmission and low-temperature alarm. When the temperature is lower than 25°C, an alarm will be generated. The control relay is connected to the technician's mobile phone and serves as a remote early warning monitoring of the temperature. The distillation tank is originally kept at a constant temperature of about 30-40 degrees and discharges 24 hours a day. If the temperature is too low, it means that the vacuum temperature or the heating pump inside is damaged, or the water flow rate of the diaphragm pump is reduced. The alarm indicates that the heavy water discharge system has a fault. If it is not handled in time, it will affect the stability of the deuterium value of the low-deuterium water. Manual intervention is required when it is lower than the set value.

[0024] 4. The pipeline centrifugal pump on the pipeline near the end of the water storage tank is used to pump the water in the water storage tank to the condensation chamber for use as condensed water.

[0025] 5. An 18B20 temperature sensor is installed above the condensation chamber to monitor the temperature. If the temperature exceeds 50°C, the system will be forced to shut down to ensure that the deuterium content of the deuterium-depleted water produced reaches the set value. The condensation chamber is at vacuum temperature, while the distillation tower is under negative pressure. High temperatures can easily cause a top surge, causing water vapor to rise, increasing pressure in the pipes, damaging the equipment and affecting the deuterium content.

[0026] 6. Pipeline 1 connects to the municipal network for water. This condensate, discharged directly from the condensing chamber, is piped to the cooling tower for physical cooling and then collected in a reservoir. The municipal network water is then used to replenish the reservoir. When the reservoir reaches the specified level, the municipal network water supply valve is closed, the pipeline centrifugal pump and valve are opened, and water from the reservoir is used to supply condensate to the condensing chamber via Pipeline 2. When the thermometer at the condensing chamber inlet exceeds 25°C, the T-shaped reversing ball valve is operated to redirect the water supply to Pipeline 3. The reservoir water is pressurized by the pipeline centrifugal pump and then piped to the heat exchanger via Pipeline 3. The heat exchanger uses a refrigeration compressor to cool the water to a temperature of approximately 18-24°C. The water is then piped to the deuterium-depleted water condensing chamber for use as condensate, achieving zero discharge and recycling of deuterium-depleted water wastewater.

[0027] 7. By adjusting and monitoring the water temperature, the unstable deuterium value of the low-deuterium water caused by the ambient temperature is further improved, and the stability of the deuterium production equipment is improved.

[0028] 8. On the condensate outlet pipe, a cooling tower is installed between the thermometer and the water storage tank. The cooling tower is cooled by fiberglass heat sinks and negative pressure fans. A temperature monitoring point is provided near the outlet of the cooling tower. A control relay connected to the WiFi networking module is provided on the temperature monitoring point.

[0029] 9. After use, the high-temperature condensed water is cooled to below 35°C in the cooling tower and then flows back into the water storage tank for standby use, thereby achieving zero discharge and recycling of low-deuterium water wastewater.

[0030] 10. Through this technical solution, a single water-making equipment can effectively save more than 576 liters of wastewater discharge per day and more than 24,720 liters of condensate discharge per day, which effectively saves water resources and water costs, and completely achieves zero wastewater discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the device of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the condensation chamber and the collector of the present invention;

[0033] In the figure, 1 is a distillation tank, 2 is a wastewater outlet, 3 is a diaphragm vacuum pump, 4 is a temperature sensor, 5 is a valve, 6 is a branch point, 7 is a pipeline centrifugal pump, 8 is a water storage tank, 9 is a cooling tower, 10 is a T-shaped ball valve, 11 is a thermometer, 12 is a condensation chamber, 13 is a collector, 14 is a gas-liquid separation tank, 15 is pipeline one, 16 is pipeline two, 17 is pipeline three, 18 is a heat exchanger, 19 is a refrigeration compressor, 20 is a deuterium-depleted water outlet, 21 is a condensate outlet, 22 is a condensate inlet, 23 is a coil, 24 is a condensate outlet main pipe, 25 is a condensate inlet main pipe, and 26 is a temperature monitoring point. DETAILED DESCRIPTION

[0034] The present invention discloses a deuterium-depleted wastewater recycling device. Figure 1: It is a structural schematic diagram of the device of the present invention, including a deuterium-depleted water preparation device, a cooling tower 9 and a water storage tank 8. The deuterium-depleted water preparation device includes a distillation tank 1, a gas-liquid separation tank 14, a collector 13 and a condensation chamber 12 connected in sequence from bottom to top. The distillation tank 1 is provided with a wastewater outlet 2, the wastewater outlet 2 is connected to the water storage tank 8, the water storage tank 8 is connected to the condensation chamber 12, the condensation chamber 12 is connected to the cooling tower 9, and the cooling tower 9 is connected to the water storage tank 8. All components of the device are connected by pipes; between the wastewater outlet 2 and the water storage tank 8, a diaphragm vacuum pump 3 is provided on the pipe near the wastewater outlet end; a temperature monitoring point 26 is provided on the pipe between the diaphragm vacuum pump 3 and the water storage tank 8 and near the diaphragm vacuum pump 3 end; a control relay is provided on the temperature monitoring point 26, and the control relay is connected to the WiFi networking module for real-time temperature transmission and low temperature alarm. When the temperature is lower than 25°C, an alarm will be generated. The control relay is connected to the technician's mobile phone for remote temperature early warning monitoring. A temperature sensor 4 is provided on the condensing chamber 12, and the signal of the temperature sensor 4 is connected to the main control processor. The pipeline between the output of the water storage tank 8 and the condensing chamber 12 is the condensing water inlet pipeline, and the pipeline between the output of the condensing chamber 12 and the water storage tank 8 is the condensing chamber 12 outlet pipeline. A branch point 6 is provided on the condensing water inlet pipeline near the water storage tank 8, a pipeline centrifugal pump 7 is provided between the branch point 6 and the water storage tank 8, and a valve 5 is provided between the pipeline centrifugal pump 7 and the water storage tank 8. The condensing water inlet pipeline is divided into pipeline one 15, pipeline two 16 and pipeline three 17 through the branch point 6, three branch pipelines, pipeline one 15 is connected to the municipal pipeline network, and a valve 5 is provided on pipeline one 15; the condensing water inlet pipeline is close to the condensing chamber 8. The condensation chamber 12 section is provided with a convergence point, which is the convergence point of pipeline 2 16 and pipeline 3 17. A T-shaped ball valve 10 is provided on the convergence point, and a heat exchanger 18 is provided on pipeline 3 17. The heat exchanger 18 is connected to the refrigeration compressor 19. The refrigeration compressor 19 is provided with a temperature sensor 4. The condensation water inlet pipeline and the condensation water outlet pipeline are both provided with a thermometer 11 near the condensation chamber 12 section. On the condensation water outlet pipeline, a cooling tower 9 is provided between the thermometer 11 and the water storage tank 8. The cooling tower 9 is cooled by glass fiber reinforced plastic heat sinks and negative pressure fans. A temperature monitoring point 26 is provided near the outlet end of the cooling tower 9, and a control relay connected to a wifi networking module is provided on the temperature monitoring point 26.

[0035] The present invention also discloses a method for recycling deuterium-depleted wastewater of a deuterium-depleted wastewater recycling device, comprising the following steps:

[0036] 1) During the production of deuterium-depleted water, the high-deuterium water produced in the distillation tank 1 is discharged from the wastewater outlet 2 through the diaphragm vacuum pump 3 and flows through the pipeline to the water storage tank 8;

[0037] 2) Open valve 5 of pipe 15, and the municipal water flows through pipe 2 16 to condensation chamber 12 for use as condensed water. The water is then cooled by cooling tower 9 in the condensed water outlet pipe and then transported to water storage tank 8 for collection. When the water storage tank 8 reaches the specified water level, close valve 5 of pipe 15;

[0038] 3) Open the pipeline centrifugal pump 7 and the valve 5 closest to the water tank 8, and the water in the water tank 8 provides condensed water to the condensing chamber 12 through the second pipeline 16;

[0039] 4) When the temperature indicator of the thermometer 11 closest to the condensing chamber 12 on the condensing water inlet pipe exceeds the limit value, the T-type reversing ball valve is operated to change the water supply pipe 2 16 of the condensing chamber 12 to the pipe 3 17. The water in the water storage tank 8 is pressurized by the pipeline centrifugal pump 7 and then transported to the heat exchanger 18 through the pipe 3 17. The heat exchanger 18 is cooled by the refrigeration compressor 19. The water temperature is controlled by the temperature sensor 4 and then transported to the condensing chamber 12 through the pipe.

[0040] 5) The high-temperature condensed water coming out of the condensation chamber 12 is cooled by the cooling tower 9 on the outlet pipe of the condensation chamber 12 and then flows back into the water storage tank 8, thereby achieving zero discharge and recycling of low-deuterium water wastewater.

[0041] The temperature monitoring point 26 on the side of the diaphragm vacuum pump 3 described in the present invention is connected to the WiFi networking module for real-time temperature transmission and low temperature alarm. The low temperature is below 25°C. The temperature sensor 4 on the condensing chamber 12 will be forced to shut down after the temperature exceeds 50°C to ensure that the deuterium value of the produced low-deuterium water reaches the set value; the high-temperature water generated after the water in the condensing chamber 12 is condensed and consumed is 35-42°C, which is cooled to below 35°C after heat dissipation through the cooling tower 9. In step 4), the limit value is when the condensed water inlet temperature exceeds 25°C or the outlet water temperature exceeds 42°C, the T-shaped ball valve 5 is opened to change the water pipe waterway; the heat exchanger 18 performs water temperature heat exchange cooling through the refrigeration compressor 19, and controls the water temperature at 18-24°C.

[0042] Figure 2It is a structural schematic diagram of the condensation chamber 12 and the collector 13 of the present invention. Water pumped out from the water storage tank 8 or input into the municipal network pipe enters the condensation water inlet main 25 of the condensation chamber 12 through the condensation water inlet 22, and then enters the condensation water outlet main 24 through several vertically arranged coils 23 connected to the condensation water inlet main 25, and then is discharged from the condensation chamber 12 through the condensation water outlet 21 connected to the condensation water outlet main 24. The coil 23 is a spiral hollow circular tube with both upper and lower ends connected. The lower end is connected to the condensation water inlet main 25, and the upper end is connected to the condensation water outlet main 24. The water vapor in the deuterium-depleted water production device is condensed into liquid through the condensation chamber 12 and drips onto the bottom surface of the condensation chamber 12. The bottom surface of the condensation chamber 12 is at an angle of 5-30 degrees to the horizontal plane. Therefore, the deuterium-depleted water dripping onto the bottom surface of the condensation chamber 12 will flow into the collector 13 along the slope, and the deuterium-depleted water in the collector 13 will be discharged through the deuterium-depleted water outlet 20. Specific embodiment:

[0044] Wastewater from the deuterium-depleted water production process flows through a diaphragm vacuum pump 3 and pipelines into a water storage tank 8, where it is naturally cooled to an ambient temperature of 20-28°C. The cooled wastewater is then transported by a pipeline centrifugal pump 7 to a deuterium-depleted water condensation chamber 12 for use as condensed water. The high-temperature condensed water then passes through a cooling tower 9, dissipating heat to below 35°C before returning to the water storage tank 8, achieving zero discharge and recycling of deuterium-depleted water wastewater. Water from the municipal network is used to replenish the water storage tank 8. When the water level in the water storage tank 8 reaches the specified level, the municipal network water supply valve 5 is closed, and the pipeline centrifugal pump 7 and valve 5 are opened, allowing water from the water storage tank 8 to supply condensed water to the condensation tower. When the temperature exceeds 25°C, the T-type reversing ball valve is operated to reroute the water supply pipe, allowing the water in the water storage tank 8 to be pressurized by the pipeline centrifugal pump 7 and then transported through two pipelines to the heat exchanger 18. The heat exchanger 18 cools the water temperature by heat exchange through the refrigeration compressor 19, controls the water temperature to about 18-24°C, and then transports it to the low-deuterium water condensation chamber 12 through a pipeline for use as condensed water. The high-temperature condensed water after use is then dissipated to below 35°C through the cooling tower 9 and then flows back into the water storage tank 8 for standby use, thereby achieving zero discharge and recycling of low-deuterium water wastewater.

[0045] The specific implementation steps of the device are:

[0046] 1) The wastewater discharge port is connected to a diaphragm vacuum pump 3 through a pipeline;

[0047] 2) Connect an 18B20 temperature sensor 4 to the discharge pipe of the diaphragm vacuum pump 3 for temperature monitoring;

[0048] 3) 18B20 temperature sensor 4 is connected to the WiFi networking module for real-time temperature transmission and low temperature alarm when the temperature is below 25℃;

[0049] 4) The discharge pipe of the diaphragm vacuum pump 3 is connected to the water storage tank 8, and the wastewater is directly discharged into the water storage tank 8, and the water storage tank 8 is cooled to 20-28°C;

[0050] 5) Open valve 5 on pipe 15, and water from the municipal network enters condensation chamber 12 through pipe 15;

[0051] 6) An 18B20 temperature sensor 4 is installed above the condensation chamber 12 to monitor the temperature. If the temperature exceeds 50 degrees, the machine will be forced to shut down to ensure that the deuterium value of the produced deuterium-depleted water reaches the set value;

[0052] 7) The temperature sensor 4 above the condensation chamber 12 is connected to the power distribution control unit of the main control processor. When the temperature exceeds 50°C, the system will be forced to shut down to ensure that the deuterium content of the deuterium-depleted water reaches the set value;

[0053] 8) A water temperature thermometer 11 is installed on the drainage pipe of the condensation chamber 12 to monitor the water temperature;

[0054] 9) The water in the condensation chamber 12 is condensed and consumed to produce high-temperature water of 35-42°C;

[0055] 10) The consumed high-temperature condensed water is transported to the air-cooled cooling tower 9 through a pipeline;

[0056] 11) The water passes through the glass fiber reinforced plastic radiator and negative pressure fan in the cooling tower 9 to cool down, and its temperature is controlled below 35 degrees Celsius;

[0057] 12) A water temperature thermometer 11 is installed at the outlet of the cooling tower 9 to monitor the water temperature;

[0058] 13) The cooled water is transported back to the water storage tank 8 through a pipeline for storage;

[0059] 14) After the water level in the water storage tank 8 reaches the specified value, close the water valve of the municipal pipe network;

[0060] 15) Open the pipeline centrifugal pump 7 and the water valve, and use the wastewater in the water storage tank 8 through the second pipe 16 to circulate the condensate water for the equipment;

[0061] 16) When the condensate inlet temperature exceeds 25°C or the outlet temperature exceeds 42°C, open the T-shaped ball valve 5 to change the water pipeline to pipeline 3 17;

[0062] 17) Turn on the refrigeration compressor 19;

[0063] 18) The self-cooling compressor is equipped with a temperature controller and a temperature display;

[0064] 19) The water is pumped into the heat exchanger 18 through the pipeline by the pipeline centrifugal pump 7;

[0065] 20) The heat exchanger 18 is connected to the refrigeration compressor 19 to refrigerate the heat exchanger 18. The water in the pipeline is cooled to 18-24°C by the heat exchanger 18 and then transported to the condensation chamber 12;

[0066] 21) Repeat steps 10-13 to complete the condensate recycling of the equipment.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the core technical features of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for recycling deuterium-depleted water wastewater using a deuterium-depleted water wastewater recycling device, characterized in that: The deuterium-depleted water wastewater recycling device comprises a deuterium-depleted water preparation device, a cooling tower (9) and a water storage tank (8). The deuterium-depleted water preparation device comprises a distillation tank (1), a gas-liquid separation tank (14), a collector (13) and a condensation chamber (12) connected in sequence from bottom to top. The distillation tank (1) is provided with a wastewater outlet (2). The wastewater outlet (2) is connected to the water storage tank (8). The water storage tank (8) is connected to the condensation chamber (12). The condensation chamber (12) is connected to the cooling tower (9). The cooling tower (9) is connected to the water storage tank (8). All components of the device are connected through pipelines. A diaphragm vacuum pump (3) is provided on the pipeline between the wastewater outlet (2) and the water storage tank (8), near the wastewater outlet (2). The diaphragm vacuum pump (3) is located between the diaphragm vacuum pump (3) and the water storage tank (8), and near the diaphragm vacuum pump (3). ) end of the pipe is provided with a temperature monitoring point (26), the condensing chamber (12) is provided with a temperature sensor, and the temperature sensor signal is connected to the main control processor; the pipe between the output of the water storage tank (8) and the condensing chamber (12) is the condensing water inlet pipe, and the pipe between the output of the condensing chamber (12) and the water storage tank (8) is the condensing water outlet pipe. A branch point (6) is provided on the condensing water inlet pipe near the water storage tank (8), a pipeline centrifugal pump (7) is provided between the branch point (6) and the water storage tank (8), and a valve is provided between the pipeline centrifugal pump (7) and the water storage tank (8). The condensing water inlet pipe is divided into three branch pipes, namely, pipe one (15), pipe two (16) and pipe three (17), through the branch point (6). The pipe one (15) is connected to the municipal pipe network, and a valve is provided on the pipe one (15); The deuterium-depleted water wastewater recycling method of the deuterium-depleted water wastewater recycling device comprises the following steps: 1) During the production of deuterium-depleted water, the high-deuterium water produced in the distillation tank (1) is discharged from the wastewater outlet (2) through a diaphragm vacuum pump (3) and flows through a pipeline to a water storage tank (8); 2) Open the valve of pipeline 1 (15), and the municipal water flows through pipeline 2 (16) to the condensation chamber (12) for use as condensed water. The water is then cooled by the cooling tower (9) in the condensed water outlet pipeline and then transported to the water storage tank (8) for collection. When the water storage tank (8) reaches the specified water level, close the valve of pipeline 1 (15); 3) Open the pipeline centrifugal pump (7) and the valve closest to the water storage tank (8), and the water in the water storage tank (8) provides condensed water to the condensation chamber (12) through the second pipeline (16); 4) When the temperature indicator of the thermometer closest to the condensing chamber (12) on the condensing water inlet pipe exceeds the limit value, the water supply to the condensing chamber (12) is switched from pipe 2 (16) to pipe 3 (17) by operating the T-shaped ball valve (10), so that the water in the water storage tank (8) is pressurized by the pipeline centrifugal pump (7) and then transported to the heat exchanger (18) through pipe 3 (17). The heat exchanger (18) cools the water through the refrigeration compressor (19), and the water temperature is controlled before being transported to the condensing chamber (12) through the pipe; 5) The high-temperature condensed water from the condensation chamber (12) is cooled by the cooling tower (9) on the outlet pipe of the condensation chamber (12) and then flows back into the water storage tank (8), thereby achieving zero discharge and recycling of low-deuterium water wastewater.

2. The method for recycling deuterium-depleted wastewater according to claim 1, wherein: A convergence point is provided on the condensate inlet pipe near the condensation chamber (12), and the convergence point is where the pipe 2 (16) and the pipe 3 (17) converge. A T-shaped ball valve (10) is provided on the convergence point.

3. The deuterium-depleted water wastewater recycling method of the deuterium-depleted water wastewater recycling device according to claim 2, characterized in that: A heat exchanger (18) is provided on the pipeline three (17), and the heat exchanger (18) is connected to the refrigeration compressor (19). A temperature sensor is provided on the refrigeration compressor (19), and a temperature gauge is provided on the condensation water inlet pipeline and the condensation water outlet pipeline near the condensation chamber (12).

4. The method for recycling deuterium-depleted water wastewater according to claim 1, wherein: A cooling tower (9) is provided on the condensed water outlet pipe between the thermometer and the water storage tank (8). The cooling tower (9) is cooled by glass fiber reinforced plastic heat sinks and negative pressure fans. A temperature detection point is provided near the outlet end of the cooling tower (9). A control relay connected to a WiFi networking module is provided on the temperature detection point.

5. The method for recycling deuterium-depleted water wastewater according to claim 1, wherein: The temperature monitoring point (26) on the side of the diaphragm vacuum pump (3) is connected to the WiFi networking module for real-time temperature transmission and low temperature alarm. The low temperature is below 25°C. The temperature sensor on the condensation chamber (12) will be forced to shut down after the temperature exceeds 50°C to ensure that the deuterium value of the produced low-deuterium water reaches the set value.

6. The method for recycling deuterium-depleted wastewater according to claim 5, wherein: The high-temperature water generated after the water in the condensation chamber (12) is condensed and consumed is 35-42°C, and is cooled to below 35°C after heat dissipation through the cooling tower (9).

7. The method for recycling deuterium-depleted wastewater according to claim 5, characterized in that: In the step 4), the limit value is that when the condensate inlet temperature exceeds 25°C or the outlet temperature exceeds 42°C, the T-shaped ball valve (10) is opened to change the water path of the water pipe; the heat exchanger (18) performs heat exchange cooling of the water temperature through the refrigeration compressor (19) and controls it at 18-24°C.

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