Water resource recovery device and method

Abstract

The invention provides a water resource recovery device and method. The water resource recovery device comprises a heat preservation water tank, an evaporation water tank and a nitrous oxide gas inlet pipe. Hot water (sewage) stored in the heat preservation water tank is sprayed into the evaporation water tank through the atomization spray head, nitrous oxide is introduced into the evaporation water tank at the same time, nitrous oxide is injected into water, evaporation of water is accelerated by means of the high water solubility and heat effect of nitrous oxide, the evaporated water is condensed, and pure water can be obtained. Therefore, the sewage can be recycled and utilized; water is sprayed by the atomizing nozzle and is in contact with nitrous oxide, so that the gas-liquid contact area is greatly increased, and the evaporation efficiency is improved; according to the invention, the solar heater is used for heating the sewage to be recycled, so that the energy consumption is reduced, and the goal of environmental protection is achieved; the system further comprises a cyclone separator, and by arranging the cyclone separator, water vapor and nitrous oxide are effectively separated, and the recovery efficiency and purity of water are guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of water treatment and resource recovery, and in particular to a water resource recovery device and method. Background Art

[0002] With global water scarcity becoming increasingly severe, efficiently extracting pure water from wastewater has become a pressing issue. While traditional wastewater treatment technologies, such as reverse osmosis and distillation, have achieved some success in improving water quality, they suffer from high energy consumption, complex equipment, and low treatment efficiency. Current water evaporation devices mostly rely on natural airflow or a single heat source to heat the water, resulting in low evaporation efficiency, particularly in high humidity or low temperature environments.

[0003] In recent years, the role of greenhouse gases in climate change has attracted widespread attention. In particular, the solubility characteristics of nitrous oxide (N2O) in water have been found to significantly promote the evaporation process of water, thereby improving water treatment efficiency.

[0004] However, there is currently no device for treating sewage using nitrous oxide (N2O). Summary of the Invention

[0005] In view of this, the present invention provides a water resource recovery device and method; the present invention accelerates the evaporation of water by injecting nitrous oxide into water and utilizing its high water solubility and thermal effect. At the same time, the present invention combines rotary atomization technology to increase the gas-liquid contact area and improve evaporation efficiency. In order to effectively separate water vapor and nitrous oxide, the device is designed with an efficient gas-liquid separation system to ensure the purity of the water. In addition, the application of the solar heating system not only reduces energy consumption, but also achieves the goal of green environmental protection. The present invention provides an innovative and efficient sewage treatment and pure water recovery technology, which solves the problems of low evaporation efficiency, high energy consumption and separation difficulties of traditional devices.

[0006] In order to achieve the above object, the present invention provides a water resource recovery device, comprising:

[0007] an insulated water tank for storing hot water;

[0008] An evaporating water tank is provided with a water pipe therein, one end of the heat pipe passes through the evaporating water tank and is connected to the heat-insulating water tank, and a plurality of atomizing nozzles are provided on the water pipe and located in the evaporating water tank;

[0009] The nitrous oxide inlet pipe is connected to the evaporative water tank and is used to introduce nitrous oxide into the evaporative water tank.

[0010] Preferably, a heating component is further included, and the heating component includes:

[0011] Sewage inlet pipe;

[0012] A plurality of heating pipes, each of the heating pipes being connected to the sewage inlet pipe;

[0013] a plurality of solar heaters, each corresponding to the heating pipe, the solar heaters being arranged on the heating pipe for heating the sewage in the heating pipe;

[0014] A sewage drain pipe, wherein the plurality of heating pipes are all connected to the sewage drain pipe, and the sewage drain pipe is connected to the insulated water tank.

[0015] Preferably, it also includes a cyclone separator;

[0016] An inlet is provided on one side of the upper end of the cyclone separator, and the inlet is connected to the evaporation water tank;

[0017] The bottom of the cyclone separator is provided with a water outlet, which is connected to the evaporation water tank;

[0018] An air outlet is provided on the top of the cyclone separator.

[0019] Preferably, a condensation component is further included, and the condensation component includes:

[0020] A condensation box, wherein the air outlet is connected to the condensation box;

[0021] a condenser, located in the condensation tank, for condensing water vapor;

[0022] The condensation conduit is located in the condensation box and below the condenser. The condensation conduit passes through the condensation box and is connected to a pure water collection box. The condensed water flows into the pure water collection box through the condensation conduit.

[0023] Preferably, it further comprises a nitrous oxide circulation pipe, one end of the nitrous oxide circulation pipe is connected to the condensation tank, and the other end is connected to the nitrous oxide inlet pipe;

[0024] The condenser comprises: a pair of semiconductor refrigeration plates arranged obliquely, each of which is provided with a heat dissipation fin; and the condensation duct is located below the semiconductor refrigeration plates.

[0025] Preferably, a bend pipe is further provided in the evaporation water tank, and a LiCl material is provided on the surface of the bend pipe;

[0026] A sewage collecting tank is further provided below the evaporation water tank, and the evaporation water tank and the sewage collecting tank are connected via a sewage pipe;

[0027] A liquid level gauge is provided in the thermal insulation water tank.

[0028] Preferably, it further comprises a first circulation pipe and a second circulation pipe;

[0029] One end of the first circulation pipe passes through the evaporation water tank and is connected to the water guide pipe, and the other end is connected to the insulation water tank;

[0030] One end of the second circulation pipe is connected to the thermal insulation water tank, and the other end is connected to the sewage inlet pipe.

[0031] Preferably, valves are provided on the sewage inlet pipe, the first circulation pipe, the second circulation pipe, the water guide pipe, and between the insulation water tank and the evaporation water tank.

[0032] Preferably, a water pump is provided on the second circulation pipe.

[0033] In a second aspect, the present invention further provides a water resource recovery method, which uses the water resource recovery device for recovery, comprising the following steps:

[0034] The sewage enters the heating pipe through the sewage inlet pipe and is heated by the solar heater. The heated sewage enters the insulation water tank through the sewage drain pipe;

[0035] The sewage in the insulation water tank enters the evaporation water tank, and nitrous oxide is introduced into the evaporation water tank through the nitrous oxide inlet pipe. The nitrous oxide contacts the sewage and releases heat to evaporate the sewage.

[0036] The water vapor mixture formed by evaporation is separated by a cyclone separator and enters the condensation component. After condensation, the water vapor flows into the collection box through the condensation pipe to obtain pure water. The nitrous oxide passes through the nitrous oxide circulation pipe and enters the nitrous oxide inlet pipe for recycling.

[0037] Preferably, nitrous oxide is introduced into the evaporative water tank through the nitrous oxide inlet pipe at a flow rate of 100 to 140 mL / min;

[0038] The temperature of the sewage in the thermal insulation water tank is 80-85°C;

[0039] The pressure in the evaporation water tank is 0.8-1.6 MPa.

[0040] The water resource recovery device and method of the present invention have the following beneficial effects compared with the prior art:

[0041] 1. The water resource recovery device of the present invention includes an insulated water tank, an evaporation water tank, and a nitrous oxide inlet pipe. The insulated water tank stores hot water and keeps the hot water warm. The hot water (sewage) stored in the insulated water tank is sprayed into the evaporation water tank through an atomizing nozzle. Nitrous oxide (N2O) is simultaneously introduced into the evaporation water tank. By injecting nitrous oxide into water, its high water solubility and thermal effect (when nitrous oxide (N2O) dissolves in water, heat is released to evaporate the water) are utilized to accelerate water evaporation. The evaporated water is condensed to obtain pure water, thereby realizing the recovery and utilization of sewage. The water is sprayed through the atomizing nozzle and contacts the nitrous oxide (N2O), which greatly increases the gas-liquid contact area and improves the evaporation efficiency.

[0042] 2. The water resource recovery device of the present invention comprises a heating assembly comprising: a sewage inlet pipe, a plurality of heating pipes, a plurality of solar heaters, and a sewage drain pipe. The present invention utilizes solar heaters to heat the sewage to be recovered, thereby not only reducing energy consumption but also achieving the goal of environmental protection.

[0043] 3. The water resource recovery device of the present invention further includes a cyclone separator, which effectively separates water vapor and nitrous oxide to ensure water recovery efficiency and purity;

[0044] 4. The water resource recovery device of the present invention further includes a curved pipe in the evaporation water tank, and the curved pipe surface is provided with LiCl material. LiCl has strong hygroscopicity: LiCl easily forms hydrates with water molecules, actively adsorbing water vapor in a humid environment, disrupting the gas-liquid equilibrium and promoting the continuous evaporation of liquid water. The heat released during the moisture absorption process provides additional energy for water evaporation, thereby reducing the activation energy required for evaporation.

[0045] 5. The water resource recovery method of the present invention significantly increases the evaporation rate of water by regulating the pressure and flow rate of nitrous oxide at high temperatures of 80-85°C, achieving a rate of 3-5 times greater than traditional natural evaporation. Furthermore, by regulating the evaporation chamber pressure, rapid evaporation is achieved with low energy consumption, providing a novel solution for efficient water recovery and resource utilization. This parameter range has been experimentally verified to exhibit good practicality and repeatability, allowing for flexible adjustment based on actual project needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0047] Figure 1 It is a structural schematic diagram of the water resource recovery device of the present invention;

[0048] Figure 2 This is a schematic structural diagram of the connection between the heating assembly and the thermal insulation water tank of the present invention;

[0049] Figure 3 This is a schematic structural diagram of the connection between the heat preservation water tank, the evaporation water tank, and the cyclone separator of the present invention;

[0050] Figure 4 It is a structural schematic diagram of the cyclone separator of the present invention;

[0051] Figure 5 It is a structural schematic diagram of the cyclone separator and condensation assembly of the present invention;

[0052] Figure 6 It is a structural schematic diagram of the connection between the condenser and the condensation pipe of the present invention. DETAILED DESCRIPTION

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments of the present invention. It should be understood that the described embodiments are only a portion of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0054] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0055] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0056] In the description of the present invention, it should be understood that the directions or positions indicated by “upper” and the like are based on the directions or positions shown in the accompanying drawings, or are the directions or positions in which the product of the invention is usually placed when in use, or are the directions or positions commonly understood by those skilled in the art. These directions or positions are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0057] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0058] It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments. In addition, in the description of this application, the term "including" means "including but not limited to". Various embodiments of the present invention may be presented in the form of a range; it should be understood that the description in the form of a range is merely for convenience and brevity and should not be understood as a rigid limitation on the scope of the invention; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single numerical values ​​within the range. For example, the range description from 1 to 6 should be considered to have specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, regardless of the range. In addition, whenever a numerical range is indicated herein, it is meant to include any cited number (fractional or integer) within the indicated range.

[0059] The present application embodiment provides a water resource recovery device, such as Figures 1 to 6 Shown, including:

[0060] An insulated water tank 2, which is used to store hot water;

[0061] The evaporation water tank 3 has a water pipe 31 therein. One end of the heat pipe 31 passes through the evaporation water tank 3 and is connected to the insulation water tank 2. A plurality of atomizing nozzles 32 are provided on the water pipe 31 and located inside the evaporation water tank 3.

[0062] The nitrous oxide inlet pipe 4 is in communication with the evaporative water tank 3 and is used for introducing nitrous oxide into the evaporative water tank 3 .

[0063] The water resource recovery device of the present invention includes an insulated water tank 2, an evaporation water tank 3, and a nitrous oxide inlet pipe 4. Hot water is stored in the insulated water tank 2 and is kept warm. The hot water stored in the insulated water tank 2 can be sprayed into the evaporation water tank 3 through a water conduit 31 and an atomizing nozzle 32. Nitrous oxide (N2O) is introduced into the evaporation water tank 3 through the nitrous oxide inlet pipe 4. The water resource recovery device of the present invention is used as follows: the hot water (sewage) stored in the insulated water tank 2 is sprayed into the evaporation water tank 3 through the atomizing nozzle 32, and nitrous oxide (N2O) is simultaneously introduced into the evaporation water tank 3. By injecting nitrous oxide into water, the evaporation of water is accelerated by utilizing its high water solubility and thermal effect (when nitrous oxide (N2O) dissolves in water, it releases heat to evaporate water). The evaporated water is condensed to obtain pure water, thereby realizing the recovery and utilization of sewage. The water is sprayed out by the atomizing nozzle 32 and contacts with nitrous oxide (N2O), which greatly increases the gas-liquid contact area and improves the evaporation efficiency.

[0064] In some embodiments, a heating assembly 1 is further included, and the heating assembly includes:

[0065] Sewage inlet pipe 11;

[0066] A plurality of heating pipes 12, each heating pipe 12 is connected to the sewage inlet pipe 11;

[0067] A plurality of solar heaters 13, which correspond one to one with the heating pipes 12, and the solar heaters 13 are arranged on the heating pipes 12 for heating the sewage in the heating pipes 12;

[0068] The sewage drainage pipe 14 and the plurality of heating pipes 12 are all connected to the sewage drainage pipe 14 , and the sewage drainage pipe 14 is connected to the thermal insulation water tank 2 .

[0069] In the above embodiment, the heating assembly 1 includes a sewage inlet pipe 11, multiple heating pipes 12, multiple solar heaters 13, and a sewage drain pipe 14. The multiple heating pipes 12 are all connected to the sewage inlet pipe 11 and are connected in parallel. Each heating pipe 12 is equipped with a solar heater 13, which heats the sewage within the heating pipe 12. The multiple heating pipes 12 are all connected to the sewage drain pipe 14. The heated sewage flows through the sewage drain pipe 14 into the insulated water tank 2 for insulation. The present invention utilizes the solar heaters 13 to heat the sewage to be recycled, thereby reducing energy consumption and achieving environmental protection goals.

[0070] In some embodiments, a cyclone separator 5 is further included;

[0071] An inlet 51 is provided on one side of the upper end of the cyclone separator 5 , and the inlet 51 is connected to the evaporation water tank 3 ;

[0072] A water outlet 52 is provided at the bottom of the cyclone separator 5 , and the water outlet 52 is connected to the evaporation water tank 3 ;

[0073] An air outlet 53 is provided at the top of the cyclone separator 5 .

[0074] In the above embodiment, a cyclone separator 5 is provided to separate the mixture of atomized water, nitrous oxide, and water vapor exiting the evaporation water tank 3. Specifically, within the evaporation water tank 3, water contacts nitrous oxide (N2O), causing the water to evaporate, forming a mixture of atomized water, nitrous oxide, and water vapor. This mixture enters the cyclone separator 5 through an inlet 51, where it is separated. The atomized water returns to the evaporation water tank 3 through a water outlet 52 at its lower end, while the nitrous oxide and water vapor are discharged from an air outlet 53 provided at the top of the cyclone separator 5 and enter a condensation assembly 6 for condensation. The present invention effectively separates water vapor and nitrous oxide by providing a cyclone separator 5, ensuring water recovery efficiency and purity. The cyclone separator 5 used in the present invention is an existing cyclone separator, and the present invention does not improve the cyclone separator itself.

[0075] In some embodiments, a condensation component 6 is further included, and the condensation component 6 includes:

[0076] Condensation box 61, the air outlet 53 is connected to the condensation box 61;

[0077] The condenser 62 is located in the condensation tank 61 and is used to condense water vapor;

[0078] The condensation conduit 63 is located in the condensation box 61 and below the condenser 62 . The condensation conduit 63 passes through the condensation box 61 and is connected to a pure water collection box 64 . The condensed water flows into the pure water collection box 64 through the condensation conduit 63 .

[0079] In the above embodiment, the condensation assembly 6 includes a condensation box 61, a condenser 62, a condensation duct 63, and a collection box 64; specifically, the air outlet 53 at the top of the cyclone separator 5 is connected to the condensation box 61, and water vapor and nitrous oxide enter the condensation box 61 through the air outlet 53. The condenser 62 condenses the water vapor, and the water vapor is condensed to form pure water. The pure water flows into the pure water collection box 64 through the condensation duct 63 and is collected.

[0080] In some embodiments, a nitrous oxide circulation pipe 41 is further included. One end of the nitrous oxide circulation pipe 41 is connected to the condenser 6 , and the other end of the nitrous oxide circulation pipe 41 is connected to the nitrous oxide inlet pipe 4 .

[0081] In the above embodiment, since the saturated vapor temperature of nitrous oxide is relatively low and it remains in a gaseous state, after condensation, the nitrous oxide gas is transported to the nitrous oxide inlet pipe 4 through the nitrous oxide circulation pipe 41 for recycling, thereby increasing the utilization rate of nitrous oxide and saving costs.

[0082] In some embodiments, the condenser 62 includes: a pair of tilted semiconductor refrigeration fins 621 , each of which is provided with a heat dissipation fin 622 ; and a condensation duct 63 located below the semiconductor refrigeration fins 621 .

[0083] In the above embodiment, the condenser 62 includes two semiconductor refrigeration plates 621, each semiconductor refrigeration plate 621 is provided with a heat dissipation fin 622, the semiconductor refrigeration plate 621 is tiltedly arranged in the condensation box 61, and the angle between the semiconductor refrigeration plate 621 and the vertical direction can be 15 to 60 degrees. The condensation duct 63 is located below the semiconductor refrigeration plate 621. After the water vapor condenses through the semiconductor refrigeration plate 621, it forms liquid pure water and flows into the collection box 64 along the condensation duct 63; specifically, the working principle of the semiconductor refrigeration plate 621 is: based on the Peltier effect, it is driven by direct current to generate a temperature difference at both ends of the refrigeration plate to achieve heat absorption and heat dissipation functions; the heat dissipation fins 622 are usually made of metal (such as aluminum or copper), in the form of thin sheets or tooth arrays, attached to the surface of the semiconductor refrigeration plate, and its function is to accelerate the heat dissipation of the hot end of the refrigeration plate by increasing the heat dissipation area, improve the heat dissipation efficiency, and avoid the failure of the refrigeration plate due to overheating.

[0084] In some embodiments, a curved pipe 33 is further provided in the evaporation water tank 3, and a LiCl material is provided on the surface of the curved pipe 33. Specifically, the curved pipe 33 is arranged in a roughly S-shaped bend in the evaporation water tank 3, and the LiCl material is provided on the surface of the curved pipe 33. The curved pipe 33 is made of a ceramic material. LiCl has strong hygroscopicity: LiCl easily forms a hydrate (LiCl·nH2O, n=1-5) with water molecules, actively adsorbs water vapor in a humid environment, destroys the gas-liquid equilibrium, and promotes the continuous evaporation of liquid water. The heat released during the moisture absorption process provides additional energy for water evaporation, thereby reducing the activation energy required for evaporation.

[0085] In some embodiments, a sewage collection tank 35 is further provided below the evaporation water tank 3. The evaporation water tank 3 and the sewage collection tank 35 are connected via a sewage pipe 34. Specifically, the sewage in the evaporation water tank 3 is evaporated to form water vapor, which is then condensed to form liquid pure water, which is collected in the collection tank 64. The unevaporated sewage is stored in the sewage collection tank 35 through the sewage pipe 34, which is provided with a valve.

[0086] In some embodiments, a liquid level meter 21 is provided in the insulated water tank 2, which is used to monitor the water level of hot water in the insulated water tank 2. If the hot water level in the insulated water tank 2 is insufficient, the solar heater is started to heat the sewage and transport the hot water to the insulated water tank 2.

[0087] In some embodiments, a first circulation pipe 36 and a second circulation pipe 15 are further included;

[0088] One end of the first circulation pipe 36 passes through the evaporation water tank 3 and is connected to the water guide pipe 31, and the other end is connected to the insulation water tank 2;

[0089] One end of the second circulation pipe 15 is connected to the thermal insulation water tank 2 , and the other end is connected to the sewage inlet pipe 11 .

[0090] In the above embodiment, the two ends of the first circulation pipe 36 are respectively connected to the water pipe 31 and the insulated water tank 2, and the water in the water pipe 31 returns to the insulated water tank 2 through the first circulation pipe 36 for further evaporation; the two ends of the second circulation pipe 15 are respectively connected to the sewage inlet pipe 11 and the insulated water tank 2, and the water in the insulated water tank 2 can return to the sewage inlet pipe 11 through the second circulation pipe 15 and after being heated, evaporate again, thus forming a complete circulation loop.

[0091] In some embodiments, valves are provided on the sewage inlet pipe 11 , the first circulation pipe 36 , the second circulation pipe 15 , and the water pipe 31 and between the thermal insulation water tank 2 and the evaporation water tank 3 .

[0092] Specifically, a solenoid valve 10 is provided on the sewage inlet pipe 11; a first valve 37 is provided on the first circulation pipe 36, and a water pump is also provided on the first circulation pipe 36; a second valve 17 is provided on the second circulation pipe 15; a third valve 38 is provided on the water pipe 31 and is located between the insulated water tank 2 and the evaporative water tank 3; and a fourth valve 18 and a water pump are provided on the sewage discharge pipe 14.

[0093] In some embodiments, a water pump 16 is provided on the second circulation pipe 15 .

[0094] Based on the same inventive concept, the present invention also provides a water resource recovery method, which uses the above-mentioned water resource recovery device for recovery, comprising the following steps:

[0095] S1. Sewage enters the heating pipe through the sewage inlet pipe and is heated by the solar heater. The heated sewage enters the insulation water tank through the sewage drain pipe;

[0096] S2. The sewage in the insulation water tank enters the evaporation water tank, and nitrous oxide is introduced into the evaporation water tank through the nitrous oxide inlet pipe. The nitrous oxide contacts the sewage and releases heat to evaporate the sewage.

[0097] S3. The water vapor mixture formed by evaporation is separated by a cyclone separator and enters a condensation component. After condensation, the water vapor flows into a collection box through a condensation pipe to obtain pure water. Nitrous oxide passes through a nitrous oxide circulation pipe and enters a nitrous oxide inlet pipe for recycling.

[0098] Specifically, the water resource recovery method of the present invention includes the following steps: sewage enters the heating pipe 12 through the sewage inlet pipe 11 and is heated by the solar heater 13. The heated sewage enters the insulated water tank 2 through the sewage drain pipe 14 for insulation and storage; the sewage in the insulated water tank 2 enters the water guide pipe 31 and is sprayed by the atomizing nozzle 32 and enters the evaporation water tank 3, and nitrous oxide is passed into the evaporation water tank through the nitrous oxide inlet pipe. The nitrous oxide contacts the sewage and releases heat to evaporate the sewage; the evaporation forms a mixture of atomized water, nitrous oxide and water vapor, and the mixture enters the cyclone separator 5 through the inlet 51. After separation by the cyclone separator 5, the atomized water returns to the evaporation water tank 3 through the water outlet 52 at its lower end. , while nitrous oxide and water vapor are discharged from the air outlet 53 provided at the top of the cyclone separator 5 and enter the condensation tank 61. The water vapor is condensed by the semiconductor refrigeration plate 621 to form liquid pure water, and flows into the collection tank 64 along the condensation pipe 63; the nitrous oxide gas is transported to the nitrous oxide inlet pipe 4 for recycling through the nitrous oxide circulation pipe 41; and the unevaporated sewage is stored in the sewage collection tank 35 through the sewage pipe 34; the water in the water pipe 31 is returned to the insulated water tank 2 through the first circulation pipe 36 for water evaporation again; the water in the insulated water tank 2 can be returned to the sewage inlet pipe 11 through the second circulation pipe 15 and after being heated, it is evaporated again, thus forming a complete circulation loop.

[0099] In some embodiments, nitrous oxide is introduced into the evaporative water tank through the nitrous oxide inlet pipe at a rate of 100 to 140 mL / min;

[0100] The temperature of sewage in the insulation water tank is 80-85℃;

[0101] The pressure inside the evaporating water tank is 0.8~1.6Mpa.

[0102] Specifically, this device significantly increases the evaporation rate of water by regulating the pressure and flow of nitrous oxide at high temperatures of 80-85°C, achieving a rate three to five times higher than traditional natural evaporation. Furthermore, by regulating the evaporation chamber pressure, rapid evaporation is achieved with low energy consumption, providing a new solution for efficient water recovery and resource utilization. This parameter range has been experimentally verified to be highly practical and repeatable, allowing for flexible adjustment based on actual project needs.

[0103] Specifically, in the present invention, the interaction between nitrous oxide and water is physical, and the dissolution process of nitrous oxide is a non-chemical reaction. The dissolution of nitrous oxide in water conforms to Henry's law, and the solubility increases with increasing pressure and decreases with increasing temperature. Heat of dissolution is released during the dissolution process, which promotes the evaporation of water. When the pressure of the aqueous solution containing dissolved nitrous oxide decreases or the temperature increases, nitrous oxide escapes from the water to form microbubbles. The disturbing effect of these bubbles can accelerate the evaporation of water. The evaporation rate of water can be accelerated by comprehensive regulation of temperature and pressure.

[0104] The water resource recovery device and method of the present application are further described below with reference to specific embodiments. This section further illustrates the present invention in conjunction with specific embodiments, but should not be construed as limiting the present invention. Unless otherwise specified, the technical means adopted in the embodiments are conventional means well known to those skilled in the art. Unless otherwise specified, the reagents, methods, and equipment used in the present invention are conventional reagents, methods, and equipment in the art.

[0105] Example 1

[0106] This embodiment provides a water resource recovery method using Figures 1 to 6 The device comprises the following steps:

[0107] S1. Sewage enters the heating pipe through the sewage inlet pipe and is heated by the solar heater. The heated sewage enters the insulation water tank through the sewage drain pipe;

[0108] S2. The sewage in the insulation water tank enters the evaporation water tank, and nitrous oxide is introduced into the evaporation water tank through the nitrous oxide inlet pipe. The nitrous oxide contacts the sewage and releases heat to evaporate the sewage.

[0109] S3. The water vapor mixture formed by evaporation is separated by a cyclone separator and then enters a condensation component. The water vapor is condensed and flows into a collection box through a condensation pipe to obtain pure water. The nitrous oxide passes through a nitrous oxide circulation pipe and enters a nitrous oxide intake pipe for recycling.

[0110] Among them, nitrous oxide is introduced into the evaporation water tank through the nitrous oxide inlet pipe at 100 mL / min;

[0111] The temperature of sewage in the insulation water tank is 80℃;

[0112] The pressure inside the evaporating water tank is 0.8Mpa.

[0113] Example 2

[0114] This embodiment provides a water resource recovery method using Figures 1 to 6 The device comprises the following steps:

[0115] S1. Sewage enters the heating pipe through the sewage inlet pipe and is heated by the solar heater. The heated sewage enters the insulation water tank through the sewage drain pipe;

[0116] S2. The sewage in the insulation water tank enters the evaporation water tank, and nitrous oxide is introduced into the evaporation water tank through the nitrous oxide inlet pipe. The nitrous oxide contacts the sewage and releases heat to evaporate the sewage.

[0117] S3. The water vapor mixture formed by evaporation is separated by a cyclone separator and then enters a condensation component. The water vapor is condensed and flows into a collection box through a condensation pipe to obtain pure water. The nitrous oxide passes through a nitrous oxide circulation pipe and enters a nitrous oxide intake pipe for recycling.

[0118] Among them, nitrous oxide is introduced into the evaporative water tank through the nitrous oxide inlet pipe at a rate of 110 mL / min;

[0119] The temperature of sewage in the insulation water tank is 82℃;

[0120] The pressure in the evaporating water tank is 1.0Mpa.

[0121] Example 3

[0122] This embodiment provides a water resource recovery method using Figures 1 to 6 The device comprises the following steps:

[0123] S1. Sewage enters the heating pipe through the sewage inlet pipe and is heated by the solar heater. The heated sewage enters the insulation water tank through the sewage drain pipe;

[0124] S2. The sewage in the insulation water tank enters the evaporation water tank, and nitrous oxide is introduced into the evaporation water tank through the nitrous oxide inlet pipe. The nitrous oxide contacts the sewage and releases heat to evaporate the sewage.

[0125] S3. The water vapor mixture formed by evaporation is separated by a cyclone separator and then enters a condensation component. The water vapor is condensed and flows into a collection box through a condensation pipe to obtain pure water. The nitrous oxide passes through a nitrous oxide circulation pipe and enters a nitrous oxide intake pipe for recycling.

[0126] Among them, nitrous oxide is introduced into the evaporative water tank through the nitrous oxide inlet pipe at a rate of 120 mL / min;

[0127] The temperature of sewage in the insulation water tank is 83℃;

[0128] The pressure in the evaporating water tank is 1.2Mpa.

[0129] Example 4

[0130] This embodiment provides a water resource recovery method using Figures 1 to 6 The device comprises the following steps:

[0131] S1. Sewage enters the heating pipe through the sewage inlet pipe and is heated by the solar heater. The heated sewage enters the insulation water tank through the sewage drain pipe;

[0132] S2. The sewage in the insulation water tank enters the evaporation water tank, and nitrous oxide is introduced into the evaporation water tank through the nitrous oxide inlet pipe. The nitrous oxide contacts the sewage and releases heat to evaporate the sewage.

[0133] S3. The water vapor mixture formed by evaporation is separated by a cyclone separator and then enters a condensation component. The water vapor is condensed and flows into a collection box through a condensation pipe to obtain pure water. The nitrous oxide passes through a nitrous oxide circulation pipe and enters a nitrous oxide intake pipe for recycling.

[0134] Among them, nitrous oxide is introduced into the evaporative water tank through the nitrous oxide inlet pipe at a rate of 130 mL / min;

[0135] The temperature of sewage in the insulation water tank is 85℃;

[0136] The pressure in the evaporating water tank is 1.4Mpa.

[0137] Example 5

[0138] This embodiment provides a water resource recovery method using Figures 1 to 6 The device comprises the following steps:

[0139] S1. Sewage enters the heating pipe through the sewage inlet pipe and is heated by the solar heater. The heated sewage enters the insulation water tank through the sewage drain pipe;

[0140] S2. The sewage in the insulation water tank enters the evaporation water tank, and nitrous oxide is introduced into the evaporation water tank through the nitrous oxide inlet pipe. The nitrous oxide contacts the sewage and releases heat to evaporate the sewage.

[0141] S3. The water vapor mixture formed by evaporation is separated by a cyclone separator and then enters a condensation component. The water vapor is condensed and flows into a collection box through a condensation pipe to obtain pure water. The nitrous oxide passes through a nitrous oxide circulation pipe and enters a nitrous oxide intake pipe for recycling.

[0142] Among them, nitrous oxide is introduced into the evaporative water tank through the nitrous oxide inlet pipe at a rate of 140 mL / min;

[0143] The temperature of sewage in the insulation water tank is 85℃;

[0144] The pressure inside the evaporating water tank is 1.6Mpa.

[0145] According to the process parameters in Examples 1 to 5, the water evaporation rate (calculated in terms of how many L of pure water are produced per hour) was calculated. The results are shown in Table 1 below.

[0146] Table 1 - Water evaporation rate of water resource recovery method in Examples 1 to 5

[0147]

[0148]

[0149] As can be seen from Table 1 above, Examples 1 to 5 achieve an evaporation rate of 15 to 22 L / h by controlling the sewage temperature, the pressure in the evaporation water tank, and the nitrous oxide flow rate. In Example 3, when the sewage temperature in the insulated water tank is 83°C, the pressure in the evaporation water tank is 1.2 MPa, and the nitrous oxide flow rate is 120 mL / min, the maximum evaporation rate of water reaches 22 L / h, which is the optimal process parameter.

[0150] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water resource recovery device, characterized in that: include: an insulated water tank for storing hot water; An evaporating water tank, wherein a water pipe is provided therein, one end of the heat conducting pipe passes through the evaporating water tank and is connected to the heat-insulating water tank, and a plurality of atomizing nozzles are provided on the water pipe and located in the evaporating water tank; The nitrous oxide inlet pipe is communicated with the evaporative water tank and is used for introducing nitrous oxide into the evaporative water tank.

2. The water resource recovery device according to claim 1, characterized in that: Also included is a heating assembly, the heating assembly comprising: Sewage inlet pipe; A plurality of heating pipes, each of the heating pipes being connected to the sewage inlet pipe; a plurality of solar heaters, each corresponding to the heating pipe, the solar heaters being arranged on the heating pipe for heating the sewage in the heating pipe; A sewage drain pipe, wherein the plurality of heating pipes are all connected to the sewage drain pipe, and the sewage drain pipe is connected to the insulated water tank.

3. The water resource recovery device according to claim 1, characterized in that: Also included is a cyclone separator; An inlet is provided on one side of the upper end of the cyclone separator, and the inlet is connected to the evaporation water tank; The bottom of the cyclone separator is provided with a water outlet, which is connected to the evaporation water tank; An air outlet is provided on the top of the cyclone separator.

4. The water resource recovery device according to claim 3, characterized in that: Also included is a condensation assembly, the condensation assembly comprising: A condensation box, wherein the air outlet is connected to the condensation box; a condenser, located in the condensation tank, for condensing water vapor; The condensation conduit is located in the condensation box and below the condenser. The condensation conduit passes through the condensation box and is connected to a pure water collection box. The condensed water flows into the pure water collection box through the condensation conduit.

5. The water resource recovery device according to claim 4, characterized in that: It also includes a nitrous oxide circulation pipe, one end of which is connected to the condensation tank, and the other end of which is connected to the nitrous oxide inlet pipe; The condenser comprises: a pair of semiconductor refrigeration plates arranged obliquely, each of which is provided with a heat dissipation fin; and the condensation duct is located below the semiconductor refrigeration plates.

6. The water resource recovery device according to claim 2, characterized in that: The evaporation water tank is further provided with a bent pipe, and the surface of the bent pipe is provided with LiCl material; A sewage collecting tank is further provided below the evaporation water tank, and the evaporation water tank and the sewage collecting tank are connected via a sewage pipe; A liquid level gauge is provided in the thermal insulation water tank.

7. The water resource recovery device according to claim 6, characterized in that: Also includes a first circulation pipe and a second circulation pipe; One end of the first circulation pipe is connected to the water guide pipe after passing through the evaporation water tank, and the other end is connected to the thermal insulation water tank; One end of the second circulation pipe is connected to the thermal insulation water tank, and the other end is connected to the sewage inlet pipe.

8. The water resource recovery device according to claim 7, characterized in that: Valves are provided on the sewage inlet pipe, the first circulation pipe, the second circulation pipe, and the water guide pipe and between the insulation water tank and the evaporation water tank; The second circulation pipe is provided with a water pump.

9. A water resource recovery method, characterized in that: The water resource recovery device according to any one of claims 1 to 8 is used for recovery, comprising the following steps: The sewage enters the heating pipe through the sewage inlet pipe and is heated by the solar heater. The heated sewage enters the insulation water tank through the sewage drain pipe; The sewage in the insulation water tank enters the evaporation water tank, and nitrous oxide is introduced into the evaporation water tank through the nitrous oxide inlet pipe. The nitrous oxide contacts the sewage and releases heat to evaporate the sewage. The water vapor mixture formed by evaporation is separated by a cyclone separator and enters the condensation component. After condensation, the water vapor flows into the collection box through the condensation pipe to obtain pure water. The nitrous oxide passes through the nitrous oxide circulation pipe and enters the nitrous oxide inlet pipe for recycling.

10. The water resource recovery method according to claim 9, characterized in that: Nitrous oxide is introduced into the evaporative water tank through the nitrous oxide inlet pipe at a rate of 100 to 140 mL / min; The temperature of the sewage in the thermal insulation water tank is 80-85°C; The pressure in the evaporation water tank is 0.8-1.6 MPa.

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