CN112960716A - Aeration type humidification, dehumidification and evaporation system and method - Google Patents
Aeration type humidification, dehumidification and evaporation system and method Download PDFInfo
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Abstract
The invention relates to an aeration type humidification, dehumidification and evaporation system and a method, wherein the system comprises a humidification unit and a dehumidification unit which are connected through an air circulation unit; the humidifying unit is provided with a humidifying box body, a feeding component, a humidifying aeration device and a heating circulation component; the dehumidification unit is provided with a dehumidification box body, a dehumidification aeration device, a cooling water constant temperature component and a cooling water discharging component; the air circulation unit comprises a hot and humid air circulation pipeline connected between the humidification box body and the dehumidification aeration device and a cold and dry air circulation pipeline connected between the dehumidification box body and the humidification aeration device. Compared with the prior art, the invention has the advantages of simple equipment assembly, convenient maintenance, high heat transfer efficiency, low cost, less investment and small occupied area, reduces the utilization of fossil fuel, reduces the environmental problems caused by using the fossil fuel, meets the aims of energy conservation, emission reduction and sustainable development, and has good economic benefit and social benefit.
Description
Technical Field
The invention belongs to the technical field of environmental protection and energy conservation, relates to an aeration type humidification, dehumidification and evaporation system and a method, and particularly relates to an evaporation and concentration system which combines low-temperature heating and aeration evaporation and has low energy consumption and a simple structure.
Background
The shortage of water resources is a difficult problem facing the world, and the seawater in the surface water accounts for 97.5 percent of the whole water circle, so that the seawater is reallyThe fresh water resource which can be directly utilized by human beings only accounts for 0.00768%, and in addition, the water is unevenly distributed in regions, so that the phenomenon that water is more expensive than oil occurs in some regions. At present, the per capita water resource amount of China is only 2140m3Only one fourth of the world level. Along with the development of economy and the increase of population, the contradiction between the increasing demand of human beings on water resources and the increasingly scarce water resources is sharply increased. In order to solve the problem, people are required to save water and protect water resources, and the unavailable water is required to be changed into the available water, such as seawater desalination, sewage treatment and the like.
Evaporation, a method for distilling water from sewage, is commonly used for the treatment of wastewater from which high concentrations of contaminants cannot be removed by filtration, biological or chemical treatment, and the like, and among them, the most widely used field of evaporation is desalination of sea water. In order to maximize the evaporation of water, a large amount of heat energy needs to be provided to the evaporation system. The exhaustion speed of non-renewable resources such as fossil fuels providing heat energy is increasing under the condition that the global energy demand is expanding day by day. Therefore, low energy design of evaporation processes has been the focus of research. The evaporation without boiling has drawn much attention in research and application because of the advantages of low evaporation temperature, low heat energy consumption, etc., such as low-temperature vacuum evaporation, low-temperature multi-effect evaporation, humidification and dehumidification evaporation, etc. The humidifying, dehumidifying and evaporating process has the advantages of simple operation, low operation and maintenance cost, flexible technological scale, etc. compared with low temperature vacuum and low temperature multiple effect evaporating process.
Prior art documents:
(1) chinese patent CN106765704A proposes a dual thermal mass coupling solar thermal air type evaporation system and method, which uses a solar thermal collector to heat air and condense sensible heat to preheat the material to be evaporated, thereby making full use of low-level heat energy.
(2) Chinese patent CN111453915A discloses a wastewater concentration system based on air humidification and dehumidification, which achieves the purpose of wastewater concentration and crystallization by arranging a filler, an air distribution device and a water distribution device.
Disclosure of Invention
Through the analysis of the prior art, the applicant of the invention finds that when the factors such as the process operation and maintenance cost and the like are comprehensively considered, the treatment thermal efficiency of the system is lower and is greatly influenced by the factors such as natural conditions and the like; the filling and water and gas distribution scaling of the Chinese patent CN111453915A is easy to scale and corrode, and especially the temperature in the dehumidifier in the invention is higher, and the equipment scaling corrosion is more serious. In the existing, conventional humidification dehumidification evaporation system, the disadvantages of low evaporation rate and low thermal efficiency are generally existed, which means that longer evaporation time or larger equipment volume is required. Particularly, in the application of using energy favorable for sustainable development, such as solar energy, waste heat, and the like, as a heat source, the heat efficiency of the humidifying and dehumidifying device needs to be improved to balance the tension energy demand and the reduction demand of the process cost. In addition, in the existing humidification and dehumidification method, a humidifier is mostly provided with a filler and is assisted with a liquid spraying device, so that the gas-liquid countercurrent contact area is increased, and the heat efficiency is improved. Such a method has a significant disadvantage that the filling material, the spray head and other devices are easy to block and corrode, and the material to be evaporated may have corrosive components, so that the application range of the humidification and dehumidification process is limited while the operation and maintenance cost is increased. Accordingly, there is a need for improved ways of increasing the gas-liquid contact area, reducing the use of corrosion-prone, fouling equipment or materials.
In view of the above, there is a need for a humidification, dehumidification and evaporation system with high heat and mass transfer efficiency and capable of effectively reducing the probability of corrosion and scaling, so as to solve the existing problems.
The invention aims to overcome the defects of the prior art and provide an aeration type humidification, dehumidification and evaporation system and a method which have high heat and mass transfer efficiency and can effectively reduce the probability of equipment corrosion and scaling.
The purpose of the invention can be realized by the following technical scheme:
the invention provides an aeration type humidification, dehumidification and evaporation system, which comprises a humidification unit and a dehumidification unit which are connected through an air circulation unit, wherein the humidification unit comprises:
the humidifying unit is provided with a humidifying box body, a feeding component, a humidifying and aerating device and a heating circulating component, wherein the feeding component is used for feeding materials to be evaporated into the humidifying box body;
the dehumidification unit is provided with a dehumidification box body, a dehumidification aeration device, a cooling water constant temperature component and a cooling water discharge component, the dehumidification aeration device is arranged at the bottom in the dehumidification box body, the cooling water constant temperature component is arranged outside the dehumidification box body and used for keeping the cooling water in the dehumidification box body constant in temperature through circulation, and the cooling water discharge component is used for discharging the cooling water in the dehumidification box body;
the air circulation unit comprises a hot and humid air circulation pipeline connected between the humidification box body and the dehumidification aeration device and a cold and dry air circulation pipeline connected between the dehumidification box body and the humidification aeration device.
Preferably, the air circulation unit further comprises a fan, and the fan is arranged on the dry and cold air circulation pipeline.
Preferably, the heating circulation component comprises a heating pipeline arranged outside the humidifying box body, and a solution pump and a heater which are arranged on the heating pipeline.
Preferably, two ends of the heating pipeline are connected with the side surface of the humidifying box body in a high-low mode and communicated with the humidifying box body, the lower end of the heating pipeline is located above the humidifying aeration device, and the higher end of the heating pipeline is located below the liquid level of materials to be evaporated in the humidifying box body.
Preferably, the feeding assembly comprises a feeding pipe arranged on the humidifying box body and a feeding valve arranged on the feeding pipe.
Preferably, the cooling water thermostatic assembly comprises a cold water pipe arranged outside the dehumidification tank body, and a water pump and a thermostatic water tank arranged on the cold water pipe.
Preferably, the two ends of the cold water pipe are connected with the side surface of the dehumidification box body in a high-low mode and communicated with the inside of the dehumidification box body, the lower end of the cold water pipe is located above the dehumidification aeration device, and the higher end of the cold water pipe is located above the liquid level of cooling water in the dehumidification box body.
Preferably, the cooling water discharge assembly comprises a cooling water discharge pipe arranged on the cold water pipe and a drain valve arranged on the cooling water discharge pipe.
Preferably, the hot and humid air circulation line is connected to the top of the humidification case, and the cold and dry air circulation line is connected to the top of the dehumidification case.
Preferably, in the present invention:
within the humidification unit: the material to be evaporated enters the humidifying box body through the feeding pipe under the control of the feeding valve. Under the action of an external solution pump, the material to be evaporated enters a heater through a heating pipeline connected with the bottom of the humidifying box body to complete temperature rise, and then returns to the humidifying box body. Dry and cold air is blown in by a fan, and is dispersed into bubbles by a humidifying aeration device at the bottom of a humidifying box body, the heat and mass exchange process with the material to be evaporated is completed, the generated damp and hot air enters a dehumidifying unit through a damp and hot air circulating pipeline at the top of the humidifying box body, and the concentration of the material to be evaporated is completed under the action of heating and aeration.
In the dehumidification unit, hot and humid air enters a dehumidification aeration device at the bottom of the dehumidification box body through a hot and humid air circulation pipeline and is in direct contact with cooling water in the dehumidification box body in a bubbling mode, moisture in the hot and humid air is rapidly condensed and separated out to water to complete dehumidification, dry and cold air escaping from the water returns to the humidification box body through a dry and cold air circulation pipeline at the top of the dehumidification box body, and the circulation of humidification and dehumidification is continuously completed. The cooling water in the dehumidification box body is divided into two paths under the action of a water pump through a cold water pipe connected to the bottom outside: one path is discharged through a cooling water discharge pipe under the control of a drain valve so as to ensure that cooling water added in the dehumidification box body is discharged in time; one path of cold water enters the constant-temperature water tank through the cold water pipe to be cooled, and low-temperature cold water in the constant-temperature water tank enters the dehumidification box body from the other side, so that the temperature of the cooling water is guaranteed to be constant.
In the air circulation unit, a fan is arranged at the inlet of a humidifying and aerating device of a dry and cold air circulation pipeline, and the air circulation process of the system integrally adopts a closed and circulating mode. Under the condition that the fan provides power, the circulating flow direction of the air in the whole system is as follows in sequence: a fan, a humidifying aeration device, a humidifying box body, a dehumidifying box body and a dehumidifying aeration device fan.
Preferably, the humidifying aeration device and the dehumidifying aeration device in the invention can be designed and customized according to actual conditions, and can also be commercially available aeration devices, such as an aeration plate, a sand head, a microporous aeration pipe and the like.
The invention provides an aeration type humidifying, dehumidifying and evaporating method, which adopts the device and comprises the following steps:
s1: after the evaporated material enters the humidifying box body from the feeding component and reaches a preset liquid level, the heating circulation component is started, the evaporated material returns to the humidifying box body from the bottom of the humidifying box body through the heating circulation component to complete circulating flow heating, and after the evaporated material is heated to a preset temperature, the air circulation unit is started;
s2: dry and cold air enters the material to be evaporated in a dispersed and uniform bubbling mode through a humidifying aeration device which is submerged in the material to be evaporated at the bottom of a humidifying box body, the gas and the material to be evaporated generate heat mass transfer in direct contact at a bubble interface, and easily evaporated separable components including moisture are brought into the air and escape from a liquid phase to obtain damp and hot air and concentrated solution;
s3: the damp and hot air enters the dehumidification box body from the bottom of the cooling water through the damp and hot air circulation pipeline and the dehumidification aeration device, and is dispersed and uniformly bubbled in the cooling water, the temperature of the damp and hot air is rapidly reduced, the easily separated components including moisture reach dew point, are condensed and separated out, and enter the cooling water from the air to complete the dehumidification process;
s4: the dehumidified wet hot air is converted into dry cold air, and the dry cold air enters the humidifying aeration device at the bottom of the humidifying box body again through the dry cold air circulation pipeline;
s5: circularly carrying out S2-S4 to realize humidification and dehumidification circulation;
s5: in the humidification and dehumidification cycle process, cooling water in the dehumidification box body keeps constant temperature through circulation through the cooling water constant temperature assembly, when the liquid level of the cooling water is too high, the cooling water discharge assembly is opened, and redundant cooling water is discharged from the cooling water discharge assembly.
Preferably, the method can be controlled by a PLC control system.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention adopts an aeration type humidification and dehumidification method of gas-liquid two-phase direct contact, increases the gas-liquid contact area by blowing bubbles, increases the heat and mass transfer coefficient by the turbulent disturbance effect of the gas phase, and improves the heat energy utilization efficiency of the whole system.
(2) The water temperature circulating heat preservation systems in the humidifying unit and the dehumidifying unit are arranged outside the box body, so that the corrosion and scaling possibility of the two systems is reduced, and the installation and the maintenance of the whole device are facilitated. And the aeration mode does not need to adopt equipment structures such as filler, water distribution and the like, thereby simplifying process equipment and solving the problems of corrosion and scaling of equipment in the box body and subsequent maintenance.
(3) The heating circulation component is arranged outside the box body, and the solution pump and the electric heater are used for controlling the heating to be below the boiling temperature, so that the energy consumption is reduced. Meanwhile, the material keeps certain fluidity under the suction action of the solution pump, and the evaporation efficiency is increased.
(4) Under the action of lower temperature and aeration, because the humidifying box body is not provided with the filler, the probability of biological pollution of the filler in the traditional humidifying unit can be reduced.
(5) The air circulation system adopts an integrally closed form, namely dry and cold air is humidified and then introduced into the dehumidifier to complete cooling and dehumidification, and then returns to the humidification aeration device of the humidification box body through the fan after becoming the dry and cold air, the whole device forms a closed system, and volatile substances in water cannot be diffused into the air to cause secondary pollution.
Drawings
FIG. 1 is a schematic diagram of an aerated humidification dehumidification vaporization system of the present invention.
In the figure, I is a humidifying unit, II is an air circulating unit, III is a dehumidifying unit, 1 is a humidifying box body, 2 is a dehumidifying box body, 3-1 is a hot and humid air circulating pipeline, 3-2 is a cold and dry air circulating pipeline, 4 is a fan, 5-1 is a humidifying aeration device, 5-2 is a dehumidifying aeration device, 6 is a solution pump, 7 is a heater, 8 is a heating pipeline, 9 is a water pump, 10 is a constant temperature water tank, 11 is a cold water pipe, 12 is a feeding valve, 13 is a feeding pipe, 14 is a drain valve, and 15 is a cooling water discharging pipe.
Detailed Description
An aerated humidification dehumidification evaporation system, as shown in fig. 1, comprises a humidification unit I and a dehumidification unit III connected by an air circulation unit II: the humidifying unit I is provided with a humidifying box body 1, a feeding component, a humidifying aeration device 5-1 and a heating circulation component, wherein the feeding component is used for feeding materials to be evaporated into the humidifying box body 1, the humidifying aeration device 5-1 is arranged at the bottom in the humidifying box body 1, and the heating circulation component is arranged outside the humidifying box body 1 and is used for circulating flow and heating the materials to be evaporated in the humidifying box body 1; the dehumidification unit III is provided with a dehumidification box body 2, a dehumidification aeration device 5-2, a cooling water constant temperature component and a cooling water discharge component, the dehumidification aeration device 5-2 is arranged at the bottom inside the dehumidification box body 2, the cooling water constant temperature component is arranged outside the dehumidification box body 2 and used for keeping the cooling water in the dehumidification box body 2 at a constant temperature through circulation, and the cooling water discharge component is used for discharging the cooling water in the dehumidification box body 2; the air circulation unit II comprises a hot and humid air circulation pipeline 3-1 connected between the humidifying box body 1 and the dehumidifying and aerating device 5-2 and a cold and dry air circulation pipeline 3-2 connected between the dehumidifying box body 2 and the humidifying and aerating device 5-1.
As another embodiment of the invention, the air circulation unit II further comprises a fan 4, and the fan 4 is arranged on the dry and cold air circulation pipeline 3-2.
As another embodiment of the present invention, the heating cycle assembly includes a heating pipe 8 disposed outside the humidification chamber body 1, and a solution pump 6 and a heater 7 disposed on the heating pipe 8.
As another embodiment of the invention, two ends of the heating pipeline 8 are connected with the side surface of the humidifying box body 1 in a high-low mode and are communicated with the humidifying box body 1, the lower end of the heating pipeline is positioned above the humidifying aeration device 5-1, and the upper end of the heating pipeline is positioned below the liquid level of the material to be evaporated in the humidifying box body 1.
As another embodiment of the present invention, the feed assembly comprises a feed pipe 13 provided on the humidification chamber body 1 and a feed valve 12 provided on the feed pipe 13.
As another embodiment of the present invention, the cooling water constant temperature assembly includes a cold water pipe 11 provided outside the dehumidifying case 2, and a water pump 9 and a constant temperature water tank 10 provided on the cold water pipe 11.
As another embodiment of the invention, two ends of the cold water pipe 11 are connected with the side surface of the dehumidification box body 2 in a high-low mode and communicated with the inside of the dehumidification box body 2, the lower end of the cold water pipe is positioned above the dehumidification aeration device 5-2, and the upper end of the cold water pipe is positioned above the liquid level of cooling water in the dehumidification box body 2.
As another embodiment of the present invention, the cooling water discharge unit includes a cooling water discharge pipe 15 provided on the cold water pipe 11 and a drain valve 14 provided on the cooling water discharge pipe 15.
As another embodiment of the present invention, a hot and humid air circulation line 3-1 is connected to the top of the humidifying cabinet 1, and a cold and dry air circulation line 3-2 is connected to the top of the dehumidifying cabinet 2.
An aeration type humidifying, dehumidifying and evaporating method adopts the device and comprises the following steps:
s1: after the evaporation material enters the humidification box body 1 from the feeding component and reaches a preset liquid level, the heating circulation component is started, the evaporation material returns to the humidification box body 1 from the bottom of the humidification box body 1 through the heating circulation component to complete circulation flow heating, and after the evaporation material is heated to a preset temperature, the air circulation unit is started;
s2: dry and cold air enters the material to be evaporated in a dispersed and uniform bubbling mode through a humidifying aeration device 5-1 which is arranged at the bottom of a humidifying box body 1 and is submerged in the material to be evaporated, the gas and the material to be evaporated generate heat mass transfer in direct contact at a bubble interface, and separable components which are easy to evaporate and comprise moisture are brought into the air and escape from a liquid phase to obtain damp and hot air and concentrated solution;
s3: the damp and hot air enters the dehumidifying box body 2 from the bottom of the cooling water through the damp and hot air circulating pipeline 3-1 via the dehumidifying and aerating device 5-2, is dispersed and uniformly bubbled in the cooling water, the temperature of the damp and hot air is rapidly reduced, easily separated components including moisture reach dew point and are condensed and separated out, and the damp and hot air enters the cooling water from the air to complete the dehumidifying process;
s4: the dehumidified wet hot air is converted into dry cold air, and the dry cold air enters a humidifying aeration device 5-2 at the bottom of the humidifying box body 1 again through a dry cold air circulating pipeline 3-2;
s5: circularly carrying out S2-S4 to realize humidification and dehumidification circulation;
s5: in the humidification and dehumidification cycle process, the cooling water in the dehumidification box body 2 keeps constant temperature through circulation through the cooling water constant temperature assembly, when the liquid level of the cooling water is too high, the cooling water discharge assembly is opened, and redundant cooling water is discharged from the cooling water discharge assembly.
In another embodiment of the present invention, in step S1, the predetermined liquid level of the humidification chamber may be appropriately selected according to the height of the humidification chamber, for example, may be about 1/2 of the height of the humidification chamber. The preset temperature in step S1 is a temperature commonly used for humidification, dehumidification and evaporation. The level of the cooling water in the dehumidification casing 2 may be appropriately selected according to the height of the dehumidification casing 2, for example, about 1/2 of the height of the dehumidification casing 2.
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
In the embodiment, high-salinity wastewater is taken as a material to be evaporated, the high-salinity wastewater enters the humidification box body 1 from the feeding pipe 13, the solution pump 6 and the heater 7 are started after reaching a certain liquid level, the high-salinity wastewater sequentially passes through the solution pump 6 and the heater 7 from the heating pipeline 8 connected to the bottom of the humidification box body 1 and then returns to the humidification box body 1, and circulating flow heating is completed.
After the high-salinity wastewater is heated to the specified temperature, the fan 4 is started, and dry and cold air enters the high-salinity wastewater in a dispersed and uniform bubbling mode through the humidifying aeration device 5-1 which is arranged at the bottom of the humidifying box body 1 and is submerged in the high-salinity wastewater. The gas and the high-salt wastewater are subjected to direct contact heat and mass transfer at the bubble interface, and the moisture in the high-salt wastewater is brought into the air and escapes from the liquid phase to obtain hot humid air and a concentrated solution.
The wet and hot air circulation pipeline 3-1 connected with the top of the humidifying box body 1 extends into the bottom of the dehumidifying box body 2 and is connected with the dehumidifying aeration device 5-2 at the bottom of the dehumidifying box body 2, and wet and hot air passes through the pipeline and is blown into the dehumidifying box body 2 from the cooling water bottom part to be dispersed and uniformly bubbled in cooling water. In the cooling water, the temperature of the damp and hot air is rapidly reduced, the moisture in the saturated damp air reaches the dew point, is condensed and separated out, and enters the cooling water from the air to complete the dehumidification process.
The dehumidified air returns to a dry and cold state, returns to an air inlet of a fan 4 from a dry and cold air circulation pipeline 3-2 at the top of the dehumidification box body 2, enters a humidification aeration device 5-1 at the bottom of the humidification box body 1 again, and continues humidification and dehumidification circulation.
During this period, the cooling water in the dehumidification unit III can be heated up because of continuously absorbing the heat in the hot and humid air, and in order to achieve a stable dehumidification effect, the water pump 9 pumps the cooling water out of the cold water pipe 11 at the bottom of the dehumidification box 2 and enters the constant temperature water tank 10 to cool down while the system is running, and the other end of the constant temperature water tank 10 outputs the low temperature cooling water to enter the dehumidification box 2.
When the liquid level of the cooling water exceeds a certain height, the valve 14 can be opened, and more cooling water is discharged from the drain pipe 15, so that excessive cooling water in the dehumidification box body 2 is avoided.
The data results for this example for treating high salinity wastewater are presented in table 1.
Table 1 effect of treatment of example 1
In the system, the aeration type humidification, dehumidification and evaporation system and the method provided by the embodiment, the aeration device can greatly improve the humidification and dehumidification efficiency, reduce the energy consumption and improve the system stability, compared with the prior art, the system has the advantages of simple assembly, convenience in maintenance, high heat transfer efficiency, low cost, less investment and small occupied area, reduces the utilization of fossil fuels and reduces the environmental problems caused by the use of the fossil fuels, meets the aims of energy conservation, emission reduction and course continuous development, and has good economic and social benefits.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. An aerated humidification dehumidification evaporation system, comprising a humidification unit (I) and a dehumidification unit (III) connected by an air circulation unit (II):
the humidifying unit (I) is provided with a humidifying box body (1), a feeding component, a humidifying and aerating device (5-1) and a heating circulating component, wherein the feeding component is used for feeding materials to be evaporated into the humidifying box body (1), the humidifying and aerating device (5-1) is arranged at the bottom in the humidifying box body (1), and the heating circulating component is arranged outside the humidifying box body (1) and is used for circulating flow and heating the materials to be evaporated in the humidifying box body (1);
the dehumidification unit (III) is provided with a dehumidification box body (2), a dehumidification aeration device (5-2), a cooling water constant temperature component and a cooling water discharge component, the dehumidification aeration device (5-2) is arranged at the bottom inside the dehumidification box body (2), the cooling water constant temperature component is arranged outside the dehumidification box body (2) and is used for keeping the cooling water in the dehumidification box body (2) at a constant temperature through circulation, and the cooling water discharge component is used for discharging the cooling water in the dehumidification box body (2);
the air circulation unit (II) comprises a hot and humid air circulation pipeline (3-1) connected between the humidifying box body (1) and the dehumidifying and aerating device (5-2) and a cold and dry air circulation pipeline (3-2) connected between the dehumidifying box body (2) and the humidifying and aerating device (5-1).
2. An aerated humidification dehumidification evaporation system as in claim 1, wherein said air circulation unit (II) further comprises a blower (4), said blower (4) being disposed on the dry and cool air circulation line (3-2).
3. An aerated humidification dehumidification system as claimed in claim 1 wherein said heating cycle assembly comprises a heating pipe (8) disposed outside the humidification housing (1) and a solution pump (6) and a heater (7) disposed on the heating pipe (8).
4. An aerated humidification and dehumidification evaporation system as claimed in claim 3, wherein the heating pipe (8) is connected to the side of the humidification case (1) at both ends, one higher end and one lower end, and is communicated with the humidification case (1), and the lower end is located above the humidification aeration device (5-1), and the higher end is located below the liquid level of the material to be evaporated in the humidification case (1).
5. An aerated humidification dehumidification system as claimed in claim 1 wherein said feed assembly comprises a feed pipe (13) disposed on the humidification housing (1) and a feed valve (12) disposed on the feed pipe (13).
6. An aerated humidification dehumidification evaporation system as in claim 1, wherein the cooling water thermostatic assembly comprises a cold water pipe (11) arranged outside the dehumidification tank (2), and a water pump (9) and a thermostatic water tank (10) arranged on the cold water pipe (11).
7. An aerated humidification and dehumidification evaporation system as in claim 6, wherein said cold water pipe (11) is connected to the side of the dehumidification tank (2) at both ends, one higher end and one lower end, and is connected to the inside of the dehumidification tank (2), and the lower end is located above the dehumidification aeration device (5-2), and the higher end is located above the level of the cooling water in the dehumidification tank (2).
8. An aerated humidification dehumidification system as claimed in claim 6 wherein said cooling water discharge assembly comprises a cooling water discharge pipe (15) disposed on the cooling water pipe (11) and a drain valve (14) disposed on the cooling water discharge pipe (15).
9. An aerated humidification dehumidification evaporation system as claimed in claim 1, wherein the hot and humid air circulation line (3-1) is connected to the top of the humidification case (1), and the cold and dry air circulation line (3-2) is connected to the top of the dehumidification case (2).
10. An aeration type humidification dehumidification evaporation method is characterized in that the device of any one of claims 1 to 9 is adopted, and the method comprises the following steps:
s1: the method comprises the following steps that after materials to be evaporated enter a humidification box body (1) from a feeding component and reach a preset liquid level, a heating circulation component is started, the materials to be evaporated return to the humidification box body (1) from the bottom of the humidification box body (1) through the heating circulation component to complete circulation flow heating, and after the materials are heated to a preset temperature, an air circulation unit is started;
s2: dry and cold air enters the material to be evaporated in a dispersed and uniform bubbling mode through a humidifying aeration device (5-1) which is submerged in the material to be evaporated at the bottom of a humidifying box body (1), the gas and the material to be evaporated generate heat mass transfer in direct contact at a bubble interface, and easily evaporated separable components including moisture are brought into the air and are escaped from a liquid phase to obtain damp and hot air and concentrated solution;
s3: the damp and hot air enters the dehumidifying box body (2) from the bottom of the cooling water through the damp and hot air circulating pipeline (3-1) and the dehumidifying and aerating device (5-2), is dispersed and uniformly bubbled in the cooling water, the temperature of the damp and hot air is rapidly reduced, easily separated components including moisture reach dew point and are condensed and separated out, and the damp and hot air enters the cooling water from the air to complete the dehumidifying process;
s4: the dehumidified wet hot air is converted into dry cold air, and the dry cold air enters a humidifying aeration device (5-2) at the bottom of the humidifying box body (1) again through a dry cold air circulating pipeline (3-2);
s5: circularly carrying out S2-S4 to realize humidification and dehumidification circulation;
s5: in the humidification and dehumidification cycle process, cooling water in the dehumidification box body (2) keeps constant temperature through circulation through the cooling water constant temperature assembly, when the liquid level of the cooling water is too high, the cooling water discharge assembly is opened, and redundant cooling water is discharged from the cooling water discharge assembly.
Priority Applications (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457394A (en) * | 2021-06-25 | 2021-10-01 | 陕西卫峰核电子有限公司 | Steam-water separation device and separation method |
| CN114105239A (en) * | 2021-12-06 | 2022-03-01 | 山东国舜建设集团有限公司 | System and process for realizing zero discharge of wastewater by contacting dry and cold carrier gas with hot wastewater |
| CN114988155A (en) * | 2022-05-24 | 2022-09-02 | 铜陵有色兴铜机电制造有限公司 | Dust suppression cooling humidifying device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120205236A1 (en) * | 2011-02-15 | 2012-08-16 | King Fahd University Of Petroleum & Minerals | High-Efficiency Thermal-Energy-Driven Water Purification System |
| JP2019162591A (en) * | 2018-03-20 | 2019-09-26 | オルガノ株式会社 | Evaporation concentrator |
| CN111453915A (en) * | 2020-05-18 | 2020-07-28 | 上海蜀库环保科技中心 | Wastewater concentration system based on air humidification and dehumidification and concentration method thereof |
| CN211847557U (en) * | 2019-12-13 | 2020-11-03 | 成都恩承科技股份有限公司 | High salt wastewater treatment system that contains |
-
2021
- 2021-02-18 CN CN202110187173.9A patent/CN112960716A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120205236A1 (en) * | 2011-02-15 | 2012-08-16 | King Fahd University Of Petroleum & Minerals | High-Efficiency Thermal-Energy-Driven Water Purification System |
| JP2019162591A (en) * | 2018-03-20 | 2019-09-26 | オルガノ株式会社 | Evaporation concentrator |
| CN211847557U (en) * | 2019-12-13 | 2020-11-03 | 成都恩承科技股份有限公司 | High salt wastewater treatment system that contains |
| CN111453915A (en) * | 2020-05-18 | 2020-07-28 | 上海蜀库环保科技中心 | Wastewater concentration system based on air humidification and dehumidification and concentration method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457394A (en) * | 2021-06-25 | 2021-10-01 | 陕西卫峰核电子有限公司 | Steam-water separation device and separation method |
| CN114105239A (en) * | 2021-12-06 | 2022-03-01 | 山东国舜建设集团有限公司 | System and process for realizing zero discharge of wastewater by contacting dry and cold carrier gas with hot wastewater |
| CN114988155A (en) * | 2022-05-24 | 2022-09-02 | 铜陵有色兴铜机电制造有限公司 | Dust suppression cooling humidifying device |
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