CN112695836A

CN112695836A - Solar energy intelligence outdoor device of washing hand based on membrane distillation

Info

Publication number: CN112695836A
Application number: CN202011473768.2A
Authority: CN
Inventors: 王志敏; 袁拓; 产文武; 杨畅; 宋力; 田瑞
Original assignee: Inner Mongolia University of Technology
Current assignee: Inner Mongolia University of Technology
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-04-23

Abstract

The invention discloses a solar-powered intelligent outdoor hand-washing device based on membrane distillation, which mainly relates to the field of outdoor washing. The upper part of the first box is inclined with a plate-shaped micro-channel condenser; the clean water storage system includes a second box fixed on the outer wall of the first box, and the lower end of the micro-channel condenser has a lower height. It is inserted into the second box body; the water outlet recovery system includes a washbasin and a booster pump; the present invention realizes the recycling and reuse of water through the internal circulation mechanism, saves water, and solves the problem of difficulty in washing hands outside and reducing bacterial and virus infections. It can not only achieve the goal of personal hygiene protection ingeniously, but also make reasonable use of renewable energy.

Description

Solar energy intelligence outdoor device of washing hand based on membrane distillation

Technical Field

The invention relates to the field of outdoor washing, in particular to a solar intelligent outdoor hand washing device based on membrane distillation.

Background

The outdoor hand washing device is a good way for ensuring hand hygiene, and the hand washing devices currently applied to outdoor public places mainly comprise the following two types:

the first is to carry the hand washing liquid without washing, the method has high cost and inconvenient carrying, and the chemical composition can damage the skin;

secondly, some hand washing basins are designed, so that the problems of large investment, wide occupied area and high water consumption exist, in the designs, some hand washing basins adopt a filter element to filter dirty water, most of water is provided by urban water supply lines, and the water using mode is easy to cause large amount of clean water waste and large continuous investment amount; however, the device is difficult to realize continuous use in arid areas with little rain, and water sanitation is difficult to ensure; the used sewage is filtered and discharged in some designs, but the design only considers green drainage and does not realize the recycling of water resources.

Disclosure of Invention

The invention aims to solve the problems in the prior art, provides a solar intelligent outdoor hand washing device based on membrane distillation, realizes the recycling of water through an internal circulation mechanism, saves water, solves the problems of difficulty in washing hands by the public and reduction of bacterial and viral infections, can skillfully realize the aim of personal hygiene protection, and reasonably utilizes renewable energy.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the solar intelligent outdoor hand washing device based on membrane distillation comprises a heating and condensing system, a clear water storage system, an effluent recovery system and a power generation and supply system;

the heating and condensing system comprises a first box body, a plate-shaped micro-channel condenser is obliquely arranged at the upper part in the first box body, a membrane structure is laid on the bottom surface of the micro-channel condenser, a first heater is arranged at the bottom in the first box body, and a drain valve is arranged at the bottom of the first box body;

the clear water storage system comprises a second box body fixed on the outer wall of the first box body, and one end of the micro-channel condenser with the lower height is inserted into the second box body;

the water outlet recovery system comprises a wash basin and a booster pump, a recovery water tank is arranged at the top of the wash basin, a water tap is arranged on the upper side of the recovery water tank, the water inlet end of the water tap is connected with the booster pump through a first pipeline, the water inlet of the booster pump is communicated with a second box body, and the bottom end of the recovery water tank is communicated with the first box body through a second pipeline;

the power generation and supply system comprises a photovoltaic panel, a storage battery and a controller, wherein the first box body, the second box body and the wash basin are all located on the lower side of the photovoltaic panel, and the photovoltaic panel covers the first box body, the second box body and the wash basin.

Preferably, the first box body and the second box body are both heat preservation boxes.

Preferably, an air cooling device is arranged at the top inside the first box body, a ventilation window is arranged on the outer wall of one end, away from the second box body, of the first box body, the ventilation window is located on the upper side of the micro-channel condenser, a filter screen is arranged inside the ventilation window, and a dust cover is arranged on the outer side of the ventilation window.

Preferably, be equipped with the water filling port on the outer wall of first box, be equipped with first temperature-sensing meter, pressure sensors in the first box, install the fluviograph on the first box.

Preferably, an overflow pipe is arranged between the second box body and the first box body, and the overflow pipe is positioned at the lower side of the micro-channel condenser.

Preferably, a second temperature sensor, a second heater and an electronic water level sensor are arranged in the second box body, and a pressure release valve is arranged at the top of the second box body.

Preferably, an ultraviolet lamp is arranged at the top inside the second box body.

Preferably, the height of the washbasin is adjustable, the first pipeline and the second pipeline both comprise a section of hose, and the second box body is provided with an intelligent recognition system.

Preferably, a detachable filter screen is arranged in the recovery water tank, and a control valve is arranged on the second pipeline.

Preferably, the faucet is an infrared sensing faucet.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a new idea of an outdoor hand washing device, which realizes the recycling of water and saves water through an internal circulation mechanism; the microchannel condensation plate is combined with membrane distillation to condense and recover hot water vapor, so that the condensation efficiency of the water vapor and the recovery efficiency of condensed water are effectively improved, the water cleanliness and the distilled water outlet efficiency are ensured, and clean water can be provided in time; the used water is recycled under the action of gravity, so that a circulating water using system is formed, and water resources are recycled; the intelligent control system is used for monitoring and adjusting the operation parameters of the device, so that the cooperative stable operation of the device is ensured and the water demand of people is met; the solar energy supply is depended on to independently operate in various outdoor public places and areas without urban pipe networks and power grids, so that the installation and maintenance are more convenient, more labor and material costs can be saved, and the solar energy supply system is green and environment-friendly; on the premise of saving energy and building intelligent cities, the invention can be used in outdoor public places such as bus stops, parks and the like, solves the problems that people are difficult to wash hands and the infection of bacteria and viruses is reduced, can skillfully realize the aim of personal sanitary protection, and reasonably utilizes renewable energy.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of a microchannel condenser;

FIG. 3 is a system control diagram of the present invention;

fig. 4 is a schematic diagram of the intelligent monitoring-feedback-control system of the invention.

The reference numbers in the drawings:

1. a first case; 11. a microchannel condenser; 12. a membrane structure; 13. a first heater; 14. a drain valve; 15. an air cooling device; 16. a filter screen; 17. a dust cover; 18. a water injection port; 19. a first temperature sensor;

2. a second case; 21. a second temperature sensor; 22. a second heater; 23. an electronic water level sensor; 24. a pressure relief valve; 25. an ultraviolet lamp; 26. an intelligent recognition system;

3. a hand washing table; 31. a booster pump; 32. a recovery water tank; 33. a faucet; 34. a first pipeline; 35. a second pipeline; 36. the filter screen can be disassembled; 37. a control valve;

4. a photovoltaic panel; 41. a storage battery; 42. a controller;

5. a water level gauge; 6. an overflow pipe; 7. a pressure sensor.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

Example (b): as shown in the attached drawings 1-4, the invention relates to a solar intelligent outdoor hand washing device based on membrane distillation, which comprises a heating and condensing system, a clear water storage system, a discharged water recovery system and a power generation and supply system;

the heating and condensing system comprises a first box body 1, the first box body 1 is used for storing water, a plate-shaped micro-channel condenser 11 is obliquely arranged at the upper part in the first box body 1, a membrane structure 12 is coated on the bottom surface of the micro-channel condenser 11, in order to solve the problem of water vapor condensation, the micro-channel condenser 11 adopts a membrane distillation micro-channel metal condensing plate which condenses water vapor and is obliquely inserted into a second box body 2 according to a certain angle, condensed water can flow into the second box body 2 by utilizing gravity, the whole micro-channel condenser 11 is only provided with a plurality of double-trapezoid small-diameter groove structures (as shown in figure 2) on the basis of the metal condensing plate, the hot vapor collecting area is increased, the contact area of the hot vapor and the condensing wall is enlarged, a down-flow path is provided for the condensed water, the condensed water flows down along a channel, and condensed water drops are avoided by utilizing the gravity effect, the condensation efficiency and the discharge efficiency of the condensed water are accelerated; when there is certain difference in temperature in membrane both sides, because the difference of vapor pressure, vapor sees through the micropore and surveys the condensation at the cold, and hot side solution is concentrated gradually for the condensation of vapor, and the comdenstion water that the metal condensation plate dropped flows down to second box 2 along the route by self gravity. A first heater 13 is arranged at the bottom in the first box body 1, the first heater 13 can adopt a heating rod, and the first heater 13 is connected with a storage battery 41 and is used for heating water in the first box body 1 to evaporate the water; the bottom of the first box body 1 is provided with a drain valve 14, the drain valve 14 is opened during maintenance, impurities deposited on the bottom of the box body are discharged, and the water quality in the first box body 1 can be improved.

Preferably, the top in the first box 1 is equipped with air cooling device 15, be equipped with the transom on the outer wall of the one end of second box 2 is kept away from to first box 1, the transom is located the upper side of microchannel condenser 11, be equipped with filter screen 16 in the transom, the outside of transom is equipped with dust cover 17, and air cooling device 15 carries out the forced air cooling heat dissipation cooling to the microchannel metal condensation board through cold wind, increases the difference in temperature of condensation board and vapor environment, improves condensation efficiency, and filter screen 16 and dust cover 17 on being located the wall have reached the purpose of heat dissipation and preventing the entering of rainwater and debris.

Preferably, the first box body is an insulation box, and an insulation layer can be laid around the first box body 1 for insulation, so that heat loss during evaporation of water in the first box body 1 can be prevented, and energy consumption can be reduced.

Preferably, in order to solve the problem of water consumption, a water filling port 18 is arranged on the outer wall of the first tank 1, and the water filling port 18 is unidirectional and can supplement water in the first tank 1; in order to monitor the water level change, the temperature and the air pressure in the first box body, a water level meter 5, a first temperature sensor 19 and a pressure sensor 7 are arranged in the first box body 1.

The clear water storage system comprises a second box body 2 fixed on the outer wall of the first box body 1, the second box body 2 is used for storing clean water, and the lower end of the micro-channel condenser 11 is inserted into the second box body 2;

preferably, an overflow pipe 6 is arranged between the second box body 2 and the first box body 1, the overflow pipe 6 is positioned at the lower side of the micro-channel condenser 11, the second box body 2 and the first box body 1 are communicated through the overflow pipe, so that the second box body 2 can keep a certain liquid level, redundant water is rapidly discharged, the redundant water enters the first box body 1, and normal operation of the device is ensured.

Preferably, a second heater 22 is installed in the second casing 2 to heat water so that the temperature of the water in the second casing 2 is constant within a certain range. Furthermore, the second box body 2 is an insulation box, and the second box body 2 is surrounded by a layer of insulation layer, so that the heat loss of water in the second box body 2 is reduced.

Preferably, a second temperature sensor 21 and an electronic water level sensor 23 are provided in the second tank 2 for constantly monitoring a temperature change and a water level change in the second tank 2.

Preferably, the top of second box 2 is equipped with relief valve 24, and electronic relief valve can be adopted to relief valve 24, because second box 2 and first box 1 intercommunication, second box 2 is the same with the pressure in the first box 1, when the water to in the first box 1 does not stop heating, the pressure in second box 2 and the first box 1 can the grow, the boiling point of the pressure grow water also can improve thereupon, restriction incasement pressure is in can guaranteeing to distill going on that the link is better in the certain limit within a definite range, the event has increased electronic relief valve, atmospheric pressure in the regulating box.

Preferably, the ultraviolet lamp 25 is installed at the top in the second box 2, and the ultraviolet lamp carries out secondary disinfection outside the high-temperature disinfection to water, can detach the bacterium that probably carries in the condensate water, has guaranteed the cleanliness factor of water.

The water outlet recovery system comprises a wash basin 3 and a booster pump 31, a recovery water tank 32 is arranged at the top of the wash basin 3, a water tap 33 is arranged on the upper side of the recovery water tank 32, a support matched with the water tap 33 is arranged on the wash basin 3, the water inlet end of the water tap 33 is connected with the booster pump 31 through a first pipeline 34, the water inlet of the booster pump 31 is communicated with a second box body 2, the bottom end of the recovery water tank 32 is communicated with the first box body 1 through a second pipeline 35, the booster pump 31 is used for improving water pressure, the circulating flow of water flow is ensured, water in the second box body 2 reaches the outside for cleaning activities of people through the first pipeline 34, the water in the recovery water tank 32 is recovered to the first box body 1 through the second pipeline 35 for secondary utilization, and waste water after hand cleaning flows into the first box body 1 through the second pipeline 35.

Preferably, a detachable filter screen 36 is arranged in the recovery water tank 32, articles dropped during hand washing of people are collected through the detachable filter screen 36, and the second pipeline 35 is prevented from being blocked by relatively large dirt, so that the maintenance and cleaning of the device are facilitated; and a control valve 37 is arranged on the second pipeline 35, and the control valve 37 is an electric valve, so that the function of preventing the dirty water from flowing backwards is achieved.

Preferably, the water tap 33 is an infrared sensing water tap, so that the hands of people are prevented from contacting the water tap 33, and secondary contact pollution of people after washing the hands is avoided.

Preferably, the height of the washbasin 3 is adjustable, the first pipeline 34 and the second pipeline 35 both comprise a section of hose, a hydraulic lifting system is arranged at the bottom of the washbasin 3, the hydraulic lifting system comprises a lifting table, a lifting table support, a hydraulic support rod and a hydraulic assembly, and the hydraulic support rod can support the running lifting table support, so that the phenomenon that the recovery water tank 32 is excessively stressed when a user washes hands is avoided.

Furthermore, the second box body 2 is provided with an intelligent recognition system 26, so that people can conveniently and visually know the temperature and the water level of the clean water in the box, and meanwhile, the water yield of the hydraulic lifting system and the water faucet can be controlled according to the height of a coming person.

The power generation and supply system comprises a photovoltaic panel 4, a storage battery 41 and a controller 42, wherein the photovoltaic panel 4 is electrically connected with the storage battery 41, the power supply is carried out by adopting the photovoltaic power generation principle, the electric quantity generated by a photovoltaic assembly is stored in the storage battery 41 so as to prevent the influence of continuous rainy weather on solar power supply, the controller 42 plays a role in controlling the charging and discharging of the storage battery, and the controller 42 consists of various sensors and monitoring devices and is used for analyzing and transmitting data transmitted by the sensors and the monitoring devices and executing corresponding control strategies. The storage battery 41 and the controller 42 are located in a base at the bottom of the first box body 1, the second box body 2 and the wash basin 3 are located on the lower side of the photovoltaic panel 4, the photovoltaic panel 4 covers the first box body 1, the second box body 2 and the wash basin 3, the photovoltaic panel 4 also has the functions of keeping out wind and rain, and the solar wash basin can be protected and can provide convenience for people.

The working principle of the invention is as follows:

the photovoltaic power generation device utilizes a photovoltaic principle, sunlight irradiates on a photovoltaic panel 4 to generate electric energy, the electric energy is stored by a storage battery 41, the storage battery 41 can provide electric energy for various elements in the photovoltaic power generation device, the whole device is monitored by various sensors and monitors (an infrared sensor, a temperature sensor, an intelligent identification system, a water level sensor, a pressure sensor and the like), device information and an operation state are fed back to a control system, the control system controls and adjusts related devices (an ultraviolet lamp, a heating rod, an electronic pressure release valve, an electric valve, an air cooling device, a booster pump, a hydraulic controller, a dirty water outlet, a valve and the like) of the device in real time according to different feedback information, and the related information is uploaded and fed back to maintenance personnel.

The working principle of the circulating water cleaning device is as follows: when the intelligent recognition system 26 senses that a person needs to perform cleaning activity, the water tap 33 automatically discharges water, then the water flows into the recovery water tank 32, the wastewater roughly filtered by the detachable filter screen 36 flows into the first box body 1 (dirty water tank) through the second pipeline 35, meanwhile, the water level of the second box body 2 (clean water tank) is lowered, when the water level in the second box body 2 is lowered to a certain degree, the electronic water level sensor 23 sends a signal to the control system, the control system receives the signal and sends a signal for supplying power to the heating rod of the first box body 1 to the storage battery 42, the heating rod in the first box body 1 starts to work to heat the dirty water in the first box body 1, at the moment, the distillation and condensation system and the air cooling device 15 start to work to continuously cool the metal condensation plate, and the dirty water continuously evaporates to generate clean water vapor along with the rising of the temperature of the dirty water, and the evaporation capacity gradually increases along with the temperature, a large amount of vapor is contacted with the microporous condensation plate through the membrane component, condensed into liquid drops and converged to flow to the second box body 2 under the action of gravity, part of dropped clear water flows into the second box body 2 along the membrane component, the second box body 2 senses the height of the water level through the electronic water level sensor 23, and when the water level is about to reach the maximum storage capacity, a signal is sent to the control system to stop heating the dirty water in the first box body 1. The clean water in the second tank 2 can be used again by people, so that the water recycling is established. When the water level of the first tank body 1 is low to a certain degree due to the consumption of people during cleaning activities, the water level meter 5 can send a signal to the control system, and the control system sends a signal to maintenance personnel to enable the maintenance personnel to perform operations such as water injection, impurity discharge, maintenance and the like on the device.

For the clear water storage system, the storage battery is an ultraviolet lamp, a temperature sensor, an electronic water level sensor, an electronic pressure release valve and a heating rod therein for power supply, when the air pressure in the tank reaches a set maximum value, the control system outputs a control signal, and the electronic pressure release valve is opened for pressure release operation. The ultraviolet lamp is turned on at regular time to carry out the work of killing and removing the virus, and the optimal cleaning temperature of an investigator is 30-40 ℃, so when a water temperature sensor in the clear water storage area detects that the water temperature is not in the temperature range, a heating rod in the clear water storage area is powered by a control system to heat water;

when the pressure sensor senses that the pressure in the water tank exceeds a set value, the control system sends a signal, the electronic pressure release valve is opened to perform pressure release operation, and when the pressure sensor senses that the pressure in the water tank is less than 1.5 atmospheres, the electronic pressure release valve is closed;

the control system adjusts the output power of the heating rod of the first box body 1 (dirty water storage area) according to the signal given by the water level sensor in the second box body 2 (clear water storage area), if the water level of the clear water storage area is reduced too fast, the power of the heating rod of the dirty water storage area is increased, the high-power state is maintained for a long time, the evaporation of dirty water is carried out, and the rising of the water level of the clear water storage area is accelerated;

when the water level of the first box body 1 (dirty water storage box) is lower than the set lowest water level limit, the control system cuts off the power supply of the dirty water heating rod to prevent the heating rod from being dried, and the second box body 2 (clear water storage box) detects the water level through the electronic water level sensor to prevent the heating rod from being dried.

The intelligent recognition system senses the height and the sex of a user, controls the lifting of the hydraulic system and the water yield of the faucet through the controller, and guarantees reasonable water consumption while taking old people and children into consideration.

Through signal feedback of each sensor and monitor, the control system can send relevant information of the device operation to maintenance personnel, so that daily maintenance operation of the device is carried out.

The device combines the micro-channel condensation plate with membrane distillation to condense and recover hot water vapor, effectively improves the condensation efficiency of the water vapor and the recovery efficiency of condensed water, and ensures the water cleanliness and the distilled water outlet efficiency; the used water is recovered through the action of gravity, so that a circulating water using system is formed, and water resources are recycled; the intelligent control system is used for monitoring and adjusting the operation parameters of the device, so that the cooperative stable operation of the device is ensured and the water demand of people is met; the device is an integrated system, independently operates in various outdoor public places and areas without urban pipe networks and power grids by means of solar energy supply, is convenient to install and maintain, can save more labor and material cost, and is green and environment-friendly.

Claims

1. based on the solar energy intelligent outdoor hand washing device of membrane distillation, it is characterized in that: comprise heating condensation system, clear water storage system, effluent recovery system, power generation and power supply system;

The heating and condensing system comprises a first box body (1), and a plate-shaped microchannel condenser (11) is inclined in the upper part of the first box body (1). A membrane structure (12) is laid on the bottom surface of the first box body (1), a first heater (13) is arranged at the bottom of the first box body (1), and a drain valve (14) is arranged at the bottom of the first box body (1). );

The fresh water storage system comprises a second box body (2) fixed on the outer wall of the first box body (1), and the lower end of the microchannel condenser (11) is inserted into the second box body (2) middle;

The water outlet recovery system comprises a washbasin (3) and a booster pump (31), the top of the washbasin (3) is provided with a recovery water tank (32), and the upper side of the recovery water tank (32) is provided with a faucet ( 33), the water inlet end of the faucet (33) is connected with the booster pump (31) through the first pipeline (34), and the water inlet of the booster pump (31) is communicated with the second tank (2) , the bottom end of the recovery water tank (32) is communicated with the first tank (1) through the second pipeline (35);

The power generation and power supply system includes a photovoltaic panel (4), a storage battery (41), and a controller (42). On the lower side of (4), the photovoltaic panel (4) covers the first box body (1), the second box body (2), and the sink (3).

2 . The solar-powered intelligent outdoor hand washing device based on membrane distillation according to claim 1 , wherein the first box body ( 1 ) and the second box body ( 2 ) are both incubators. 3 .

3. The solar-powered intelligent outdoor hand washing device based on membrane distillation according to claim 1, characterized in that: an air cooling device (15) is provided on the top of the first box body (1), and the first box body (1) is provided with an air cooling device (15). (1) A ventilation window is provided on the outer wall of one end away from the second box body (2), the ventilation window is located on the upper side of the microchannel condenser (11), and a filter screen (16) is arranged in the ventilation window, A dust cover (17) is provided on the outside of the ventilation window.

4. The solar-powered intelligent outdoor hand washing device based on membrane distillation according to claim 1, characterized in that: a water injection port (18) is provided on the outer wall of the first box body (1), and the first box body (1) is provided with a water injection port (18). 1) A first temperature sensor (19) and a pressure sensor (7) are provided inside, and a water level gauge (5) is installed on the first box body (1).

5. The solar-powered intelligent outdoor hand washing device based on membrane distillation according to claim 1, wherein an overflow pipe (6) is provided between the second box (2) and the first box (1). , the overflow pipe (6) is located on the lower side of the microchannel condenser (11).

6. The solar-powered intelligent outdoor hand washing device based on membrane distillation according to claim 1, characterized in that: the second box (2) is provided with a second temperature sensor (21), a second heater (22) ), an electronic water level sensor (23), and a pressure relief valve (24) is provided on the top of the second box body (2).

7 . The solar-powered intelligent outdoor hand washing device based on membrane distillation according to claim 1 , wherein an ultraviolet light ( 25 ) is provided on the top of the second box ( 2 ). 8 .

8. The solar-powered intelligent outdoor hand-washing device based on membrane distillation according to claim 1, characterized in that: the height of the hand-washing table (3) is adjustable, the first pipeline (34), the second pipeline ( 35) Each includes a section of hose, and an intelligent identification system (26) is provided on the second box body (2).

9 . The solar-powered intelligent outdoor hand washing device based on membrane distillation according to claim 1 , characterized in that: a detachable filter screen ( 36 ) is arranged in the recovery water tank ( 32 ), and the second pipeline ( 35 ) There is a control valve (37) on it.

10 . The solar-powered intelligent outdoor hand washing device based on membrane distillation according to claim 1 , wherein the water tap ( 33 ) is an infrared sensor water tap. 11 .