CN111720880B - Micro-scale flat tube shower water longitudinal circulation system and warming method - Google Patents

Micro-scale flat tube shower water longitudinal circulation system and warming method Download PDF

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Publication number
CN111720880B
CN111720880B CN202010586013.7A CN202010586013A CN111720880B CN 111720880 B CN111720880 B CN 111720880B CN 202010586013 A CN202010586013 A CN 202010586013A CN 111720880 B CN111720880 B CN 111720880B
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micro
flat tube
scale flat
water
bathroom
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CN111720880A (en
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刘恩海
张文芸
李薇
钱英芝
李庆扬
许心恬
武家辉
龚亚军
龚宇轩
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Changzhou University
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Changzhou University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D15/00—Other domestic- or space-heating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/30—Solar heat collectors using working fluids with means for exchanging heat between two or more working fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/40—Arrangements for controlling solar heat collectors responsive to temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00—Details of absorbing elements
    • F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention provides a micro-scale flat tube shower water longitudinal circulation system and a temperature increasing method, wherein a solar auxiliary heating system module and a low-temperature heat exchange system module which are convenient to flexibly call are arranged, a water temperature control and detection system is matched, the water temperature in a tube is monitored, and the proper temperature of a room and a bathroom micro-scale flat tube longitudinal circulation system is ensured; the micro-scale flat tubes are used for enhancing the turbulence degree of the fluid and strengthening the convection heat transfer; the micro-scale flat tubes are longitudinally surrounded in the wall body, so that the indoor space occupation is reduced, the heat transfer effect is good, and the manufacturing cost is low; the invention adopts external heating to improve the indoor and bathroom temperature, is provided with the longitudinal annular pipeline, utilizes the hot water waste heat after showering to exchange heat with the air in the bathroom and the room, has good heat exchange effect, high heat transfer efficiency and energy conservation, effectively improves the comfort level of showering and living of people in winter, and promotes energy conservation.

Description

Micro-scale flat tube shower water longitudinal circulation system and warming method
Technical Field
The invention particularly relates to a micro-scale flat tube shower water longitudinal circulation system, and belongs to the technical field of enhanced heat exchange and heating.
Background
In the non-heating areas in south China, the temperature is low in winter, the humidity is high, the weather is rainy, and the feeling of coldness and shady is obvious, and generally, in winter in south China, the indoor temperature is generally low, and certain potential safety hazards exist when the existing heating tools on the market are used due to the fact that the power is high. The bathroom often adopts the bathroom heater to preheat the intensification before bathing, and occupation indoor space is big, and the intensification area of being heated is inhomogeneous, can not guarantee people's comfort level in the aspect of the bathing experience, and shower hot water temperature is high, easily becomes ill after the shower under the difference in temperature environment. And the dazzling light emitted by the bathroom heater when in use can cause certain influence on the eyes of people when in bathing. Meanwhile, the bath heater has larger power, so that dangerous conditions such as electric leakage, explosion and the like are easily caused when the bath heater is used under an overload condition, and safety accidents are caused.
Aiming at the heating problem of high-rise and household showering in the existing residential community, how to improve the indoor temperature by combining the characteristics of human physiology and shower comfort needs to be improved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a micro-scale flat tube shower water longitudinal circulation system, has the advantages of light weight, convenient installation and maintenance, stable operation under different working conditions, energy conservation and high efficiency, and adopts the technical scheme that:
in a first aspect, the present invention provides a micro-scale flat tube shower water longitudinal circulation system, which is characterized by comprising a low temperature heat exchange system and a warming and heating module 16, wherein the warming and heating module 16 comprises: an electric auxiliary system circulation loop and a solar auxiliary heat circulation loop,
the electric auxiliary system circulation loop comprises a first valve K which is connected in sequence1A first water tank 8, a first water pump 10, a second water tank 12, a second water pump 14, a room and bathroom micro-scale flat tube longitudinal circulation system 4, and a first valve K1The other end of the water tank is connected with a tap water pipe, and a first electric heater 9 and a second electric heater 11 which are connected with the control cabinet 3 are respectively arranged in the first water tank 8 and the second water tank 12;
the solar auxiliary heat circulation loop comprises a control cabinet 3, a solar heat collector 1 and a solar heat collector which are connected in sequenceCirculating pump 7 and first valve K1The parallel electric auxiliary system circulation loops;
the first water tank 8 is connected with the control cabinet 3 through a second temperature sensor 5, the second water tank 12 is connected with the control cabinet 3 through a third temperature sensor 6, one end of the first temperature sensor 2 is connected with a water outlet of the solar thermal collector 1, and the other end of the first temperature sensor is connected with the control cabinet 3;
the low-temperature heat exchange system comprises a heat exchange coil 21, and the room and bathroom micro-scale flat tube longitudinal circulation system 4 is connected with a third valve K3Is connected with the heating module 16 to form a first low-temperature heat exchange circulation branch; the room and bathroom micro-scale flat tube longitudinal circulating system 4 passes through a fourth valve K4And is connected with the heat exchange coil 21 to form a second low-temperature heat exchange circulating branch.
In combination with the first aspect, further, one end of the heat exchange coil 21 is connected to the sewer or the low temperature heat exchange system through a first selection valve 20, and the other end is connected to the sewer or the low temperature heat exchange system through a second selection valve 22.
Further, the room and bathroom microscale flat tube longitudinal circulation system 4 comprises a bathroom microscale flat tube longitudinal circulation system 17 and a room microscale flat tube longitudinal circulation system 18 which are connected in parallel, and the first selection valve 20 is connected with the first selection valve through a seventh valve K7Is connected with a longitudinal circulating system 17 of the micro-scale flat pipe of the bathroom through a ninth valve K9 Connected with the room micro-scale flat tube longitudinal circulating system 18
Further, the micro-scale flat tubes 27 are installed in the walls of the bathroom micro-scale flat tube longitudinal circulation system 17 and the room micro-scale flat tube longitudinal circulation system 18, and the two sides of the cross section of each micro-scale flat tube 27 are light plates which are convex outwards and are arc-shaped.
Further, the room micro-scale flat tube longitudinal circulation system 18 comprises a room controller 48 and a humidifier 49 connected with the room controller 48.
Further, solar collector 1 and first water tank 8 adopt the components of a whole that can function independently installation, solar collector 1 sets up in the bathroom outside, first water tank 8 sets up the inside in the bathroom.
Further, straight-tube graphene coating 60 with the thickness of 0.6-0.9 mm is coated at the straight tube of the heat exchange coil 21, and bent-tube graphene coating 61 with the thickness of 0.2-0.4 mm is coated at the bent tube of the heat exchange coil 21.
Further, a flow meter 13 is arranged between the second water tank 12 and the room and bathroom micro-scale flat tube longitudinal circulation system 4.
In a second aspect, the invention provides a temperature increasing method for a micro-scale flat tube shower water longitudinal circulation system, which comprises the following steps:
in the heating mode, the third valve K is opened3The first low-temperature heat exchange circulation branch is conducted, the control cabinet 3 controls the solar auxiliary heat circulation loop and the electric auxiliary system circulation loop to be conducted and/or conducted, heating is carried out through the heating module 16, and heated hot water flows into a longitudinal circulating pipe of the longitudinal circulating system 4 of the micro-scale flat pipe installed in a room and a bathroom from the second water tank 12 to realize heating;
the preheated water can flow back to the room and bathroom micro-scale flat tube longitudinal circulation system 4 to cool the system by water, otherwise, the water flows into a sewer through the first selector valve 20;
when the micro-scale flat tube longitudinal circulation system 4 in the room and the bathroom does not meet the set temperature requirement, the fourth valve K is selectively opened4The second low-temperature heat exchange circulation branch is conducted, the heat exchange coil module 15 is started, water passing through the warming and heating module 16 flows through the second selection valve 22 and is heated through the heat exchange coil module 15, and the seventh valve K7And/or ninth valve K9Opening, and heating water flowing into the longitudinal circulation system 17 of the micro-scale flat tube in the bathroom and/or the longitudinal circulation system 18 of the micro-scale flat tube in the room;
when the heating of the room and the bathroom micro-scale flat tube longitudinal circulation system 4 is not needed, the second selector valve 22 is communicated with the sewer.
In combination with the second aspect, the method further comprises the steps of cooling the room and bathroom micro-scale flat tube longitudinal circulation system 4, and opening an eighth valve K8Opening the seventh valve K7And/or ninth valve K9Running water passes through an eighth valve K8Micro-scale of inflow into rooms and bathroomsAnd cooling by the flat pipe longitudinal circulation system 4.
Compared with the prior art, the invention has the following beneficial effects:
the invention uses the micro-scale flat tube, strengthens the heat transfer, greatly improves the heat exchange efficiency and saves the cost; the shower water longitudinal circulation system is arranged, so that the indoor temperature is increased, and the electric energy is saved; the external heating is adopted, so that the energy consumption of the water heater is reduced; the heating module and the low-temperature heat exchange system module which are convenient to flexibly call are additionally arranged, the water temperature control and detection system is matched, the water temperature in the pipe is monitored in real time, and the proper temperature is ensured by controlling the flow and the temperature of hot water in the pipe through the control cabinet.
Drawings
FIG. 1 is a schematic diagram of a system temperature-increasing connection structure according to an embodiment of the present invention;
fig. 2 is a schematic view of a connection structure of a micro-scale flat tube shower water longitudinal circulation system according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a solar thermal collector according to an embodiment of the present invention;
FIG. 4 is a schematic view of a micro-scale flat tube structure according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a humidifier according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a control instrument according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a control instrument for controlling a humidifier;
FIG. 8 is a schematic view of a longitudinal circulation of a room in accordance with an embodiment of the present invention;
FIG. 9 is a schematic view of a longitudinal circulation of a bathroom in accordance with an embodiment of the present invention;
FIG. 10 is a structural diagram of a heat exchange coil system according to an embodiment of the present invention;
FIG. 11 is a partial enlarged structural schematic view of a straight pipe and a bent pipe of a heat exchange coil according to an embodiment of the present invention;
FIG. 12 is a schematic view of a heat exchange coil according to an embodiment of the present invention;
in the figure: 1. a solar heat collector; 2. a first temperature sensor; 3. a control cabinet; 4. room and bathroom microscale flat tube longitudinal circulation systems; 5. second temperature sensor(ii) a 6. A third temperature sensor; 7. a solar heat collection circulating pump; 8. a first water tank; 9. a first electric heater; 10. a first water pump; 11. a second electric heater; 12. a second water tank; 13. a flow meter; 14. a second water pump; 15. a heat exchange coil module; 16. a heating module for heating; 17. a bathroom microscale flat tube longitudinal circulation system; 18. a room micro-scale flat tube longitudinal circulation system; 19. a tap water replenishing inlet; 20. a first selector valve; 21. a heat exchange coil; 22. a second selector valve; 23. a thermal insulation layer; 24. a transparent cover plate; 25. a heat absorbing plate; 26. a housing; 27. micro-scale flat tubes; 28. a fan; 29. a transducer; 30. a box body; 31. water; 32. a water level controller; 33. a fog amount indicator light; 34. a mist quantity controller; 35. a power indicator light; 36. a temperature controller; 37. a power source; 38. a control circuit; 39. a first temperature increasing mode selection button; 40. a display screen; 41. first temperature adjustment; 42. a second temperature increasing mode selection button; 43. second temperature adjustment; 44. a switch button of the humidifier; 45. a mist amount control button; 46. a humidity control button; 47. a temperature detector; 48. a room control instrument; 49. a humidifier; 50. a room circulating water inlet; 51. a room circulating water outlet; 52. a bathroom controller; 53. a circulating water inlet of a bathroom; 54. a bathroom circulating water outlet; 55. a water outlet pipe of the heat exchange coil; 56. a water inlet pipe of the heat exchange coil; 57. ribs; 58. a fan; 59. a heat exchange coil; 60. coating the straight pipe of the heat exchange coil; 61. coating at the bent pipe of the heat exchange coil; k is a radical of1A first valve; k is a radical of2A second valve; k is a radical of3A third valve; k is a radical of4A fourth valve; k is a radical of5A fifth valve; k is a radical of6A sixth valve; k is a radical of7A seventh valve; k is a radical of8An eighth valve; k is a radical of9A ninth valve.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The invention provides a micro-scale flat tube shower water longitudinal circulation system and a temperature increasing method, as shown in fig. 1, a schematic diagram of a system temperature increasing connection structure in an embodiment of the invention is shown, wherein a solar auxiliary heating system module comprises the following three operation embodiment modes:
example 1:
solar auxiliary heat circulation loop: the outdoor sunlight is abundant, the solar radiation intensity is 45 ℃ higher than the set value of the water temperature of the circulation loop, and the heating device is started when the water temperature of the shower bath circulating longitudinally of the residence alone cannot heat the air in the bathroom. The hot water temperature value at the outlet of the solar heat collector 1 is detected by the first temperature sensor 2, and when the temperature reaches the set value of 45 ℃ of the system temperature, the hot water directly flows into the longitudinal circulation pipe of the system to heat and warm the air in the bathroom of the house. Then, the solar heat collector 1 is conveyed by a solar heat collecting circulating pump 7 for heating and recycling.
The operation mode specifically comprises the following steps: the solar heat collector 1 operates alone to heat hot water; in solar collector 1, solar radiation can be absorbed by solar collector 1, heat hot water, and hot water circulation to first water tank 8 that solar energy collection circulating pump 7 will produce according to 8 temperature intermittent operation in first water tank, and the heat of collecting through solar panel passes through temperature sensor 2 and spreads into switch board 3 into if satisfy temperature>At 45 ℃, water is injected into the first water tank 8 through the solar heat collection circulating pump 7; the water in the water tank which does not reach 20 ℃ is conveyed into the solar heat collector 1 through the circulating pump 7 to be heated, and the circulation is carried out. The water reaching the temperature requirement passes through a sixth valve K6After the water in the second water tank 12 is detected again by the third temperature sensor 6 after the pressure is supplied by the first water pump 10, if the temperature requirement is satisfied, the water in the second water tank 12 is supplied to the user through the flow meter 13 and the second water pump 14, and directly flows into the longitudinal circulation pipe of the system, so that the air in the bathroom of the house is heated.
Example 2:
solar auxiliary heating and electric auxiliary system circulation loop: the outdoor sunlight is insufficient, the air in the bathroom cannot be heated by the shower water temperature of the longitudinal circulation of the house alone, and the solar heat collector 1 cannot heat the circulating water to the set value of 45 ℃, and an electric auxiliary system circulation loop is started, namely a pipe section electric heating soft belt auxiliary heat circulating water system is adopted, so that the shower comfort of people is improved.
The operation mode specifically comprises the following steps: both heating systems can work independently and independentlyThe solar energy heat collector 1 is preferentially adopted by the system to work according to the complementary weather conditions, if the temperature measured by the first temperature sensor 2 is less than 20 ℃, the electric auxiliary system circulation loop is started until the temperature of the first water tank 8 reaches 20 ℃, the subsequent circulation is the same as the operation mode of the embodiment 1, and the second valve k2A second valve k for connecting the first and second water tanks 8 and 122The other end is connected with the control cabinet 3, and the pressure of the first water tank 8 and the second water tank 12 can be adjusted by transmitting signals to the control cabinet 3.
Example 3:
electric auxiliary circulation system loop: at night or in continuous rainy days, and when the water temperature of the shower which is circulated longitudinally by the house alone cannot heat the air in the bathroom, the heating device is started. Circulating water for the system is electrically heated by an electric auxiliary circulating system pipe section to a set value of 45 ℃ through an electric heating soft belt, is conveyed by a solar heat collection circulating pump 7 and flows into a longitudinal circulating pipe of the system to heat and heat air in a bathroom of a residence.
The operation mode specifically comprises the following steps: the electric auxiliary circulation system loop operates independently. If the solar radiation can not be reused in continuous rainy days, the first valve K is opened in a heating mode of the loop of the electric auxiliary circulation system1Tap water was injected. After the water in the first water tank 8 reaches the water level line, the heated water passes through the sixth valve K6The pressure is supplied by the first water pump 10 to the second water tank 12. Then the temperature of the water in the second water tank 12 is detected again by the third temperature sensor 6, if the temperature requirement is satisfied, the water in the second water tank 12 is supplied to the user through the flow meter 13 and the second water pump 14, directly flows into the system longitudinal circulation pipe, and heats the air in the bathroom of the house.
Fig. 2 is a schematic view of a connection structure of a micro-scale flat tube shower water longitudinal circulation system according to an embodiment of the present invention, which mainly includes a heating module 16 and a heat exchange coil 21 in the heat exchange coil module 15. Wherein the water in the main circulation system in the bathroom mainly flows to the longitudinal circulation system, and before showering, the third valve K is opened3The temperature of the water heated for the first time by the heating module 16 is maintained at about 43 ℃, and the hot water in the second water tank 12Flows into a longitudinal circulating pipe arranged in a bathroom and the wall of a room to realize preheating before bathing and indoor temperature increasing. The preheated water flows into the first selector valve 20, the water temperature is about 10 ℃, and the water can flow back to the circulation system for water cooling if the bathroom is required to be cooled; if not, the sewage flows into a sewer to finish circulation.
When the temperature of the bathroom does not meet the requirement, the fourth valve K is opened4The heat exchange coil module 15 is started, water passing through the warming heating module 16 flows through the second selector valve 22, the second selector valve 22 is controlled to select the heat exchange coil module 15 for secondary auxiliary heating, and the heat exchange coil module 15 and the room and bathroom microscale flat tube longitudinal circulation system 4 pass through the fifth valve K5Connected, then a seventh valve K7The ninth valve K9And opening, and enabling water to flow into the micro-scale flat tube longitudinal circulation system 17 and the room micro-scale flat tube longitudinal circulation system 18 of the bathroom to preheat and heat the room or the bathroom. When the room or bathroom is not required to be preheated, the second selector valve 22 is communicated with the sewer, and the water in the heat exchange coil flows into the sewer.
In summer, an eighth valve K communicated with a tap water replenishing inlet 19 is opened8Then opening valve K9And running water flows into a circulation system of the room to cool the room.
As shown in fig. 3, which is a schematic structural diagram of a solar thermal collector according to an embodiment of the present invention, when the solar thermal collector 1 operates, solar radiation penetrates through the transparent cover plate 24 and irradiates on the heat absorbing plate 25 with a selective absorption coating on the surface, the heat absorbing plate 25 absorbs most of the solar radiation and converts the solar radiation into heat energy, then the heat energy is absorbed by a working medium in a fluid channel in the heat absorbing plate, the heat insulating layer 23 reduces the loss of the absorbed heat energy to the environment in a heat conduction manner, and the outer shell 26 covers the outer side of the heat insulating layer 23.
The solar heat collector 1 is completely separated from the first water tank 8 and adopts a split installation mode. The solar heat collector 1 is arranged outside bathroom windowpane, and the first water tank 8 is arranged in the space inside the bathroom windowsill, so that the problem that a user of a high-rise building cannot install a solar water heating system is solved, and the perfect combination of solar energy and the building is realized.
As shown in fig. 4, which is a schematic view of the structure of the micro-scale flat tube according to the embodiment of the present invention, the micro-scale flat tube 27 is a heat exchange enhancement element, and is formed by pressing circular tubes with the same circumference, the cross section of the micro-scale flat tube is composed of two symmetrical straight sides and two symmetrical semicircular arcs, the flat wall on the side of the straight side is equivalent to the plate wall of the plate heat exchanger, the heat transfer characteristic of the tube bundle is closer to the heat transfer of the plate bundle, and the circular tube has a reduced cross section area and a reduced equivalent diameter compared with the conventional circular tube after being pressed into the micro-scale flat tube 27, so that the speed is increased at the same flow. Meanwhile, the micro-scale flat tubes 27 are longitudinally surrounded in the wall body, so that the occupation of the system on indoor space is reduced, and the heat transfer effect can be better achieved; and the micro-scale flat tubes 27 are low in cost.
Fig. 5 is a schematic structural diagram of a humidifier according to an embodiment of the present invention, which is mainly used for humidifying a dry room (a space used for changing clothes, resting, blowing hair, etc.) in a bathroom (with a dry and wet separation chamber), and is turned on only in dry weather in winter to improve the comfort after showering. The transducer 29 is connected with the fan 28, and the control circuit 38, the power supply 37, the temperature controller 36 and the power indicator 35 are connected in sequence, wherein the other end of the control circuit 38 is connected with the transducer 29. The humidifier atomizes water in an ultrasonic mode, the fog quantity indicator lamp 33, namely the light emitting diode, is displayed in a brightening mode, atomized water vapor is blown out of the shell through the fan 28, and the air humidifying effect is achieved. When the water level controller 32 detects that the water level of the water 31 in the tank 30 is insufficient, water is automatically replenished, and the mist amount is adjusted by the mist amount controller 34.
As shown in fig. 6, which is a schematic structural diagram of a controller according to an embodiment of the present invention, a single-chip Microcomputer (MCU) including a button and an external LED display screen 40 is installed on a wall of a room or a bathroom, and a novel contact temperature sensor is included inside the controller, and is mainly used for adjusting temperature and changing a heating mode, and the indoor temperature is adjusted by a first temperature adjustment 41 and a second temperature adjustment 43, wherein the adjustable range is 23 to 30 ℃, the temperature control precision is better than 0.01 ℃/10min, and the precise control of the temperature is realized; the temperature increasing mode is changed through the first temperature increasing mode selecting button 39 and the second temperature increasing mode selecting button 42, the system is mainly adjusted according to different indoor temperatures, and when the temperature is high, the flow can be changed through the built-in throttle valve, and the circulating system is weakened or closed. The control system greatly reduces the complexity of operation, is generally suitable for various crowds, enables adjustment and observation to be convenient and fast through the keys and the display screen, and has the characteristics of simplicity and high efficiency. The system adopts keyboard display (temperature adjustment and mode conversion) and CPU core regulation (adopts a simple and easy-to-use STC89C52 single chip microcomputer, a 4KB unit program memory is arranged in the system, no external program memory is required to be expanded, and an I/O port of the system is enough for the design requirement of the invention). It has the characteristics of simplicity, convenience, low cost and reliability.
As shown in fig. 7, the controller controls the humidifier in a schematic structural diagram, after the sensor detects the air humidity, the air humidity is displayed on the LED display 40, the humidifier is turned on or off by operating the humidifier switch button 44, the mist control button 45 controls the amount of mist to improve the air humidity, and the humidity control button 46 controls the temperature.
Fig. 8 is a schematic diagram showing the longitudinal circulation of the room according to the embodiment of the present invention, a room controller 48 and a humidifier 49 are installed on the wall, and the humidifier 49 is turned on only in dry winter weather to ensure the comfort of the indoor environment. The micro-scale longitudinal circulation flat pipe is arranged on the inner surface of the wall of a room, hot water used in showering is collected through a floor drain in a bathroom, the floor drain is connected with the micro-scale flat pipe 27 arranged in the wall, the hot water is sent into the room through the room circulating water inlet 50, and the hot water and air in the bathroom are subjected to heat exchange and heating in a longitudinal circulation mode to ensure the comfort degree of the indoor environment and flow out from the room circulating water outlet 51.
As shown in fig. 9, which is a schematic view of longitudinal circulation of a bathroom according to an embodiment of the present invention, the micro-scale flat tubes 27 are arranged on the inner surface of the bathroom wall in a longitudinal circulation manner, hot water enters from a circulating water inlet 53 of the bathroom, and flows out from a circulating water outlet 54 of the bathroom, and are connected with a floor drain to form a circulation system. A bathroom controller 52 is installed on the wall of the bathroom to perform switching between temperature adjustment and warming modes, either automatically or manually.
The micro-scale flat pipe 27 has the unique characteristic of a micro channel, transports hot water with extremely high transmission efficiency, reasonably reduces pressure under the condition of ensuring that the water temperature does not change greatly, and transports efficiently and safely. The hot water transported through the pipeline is transported to the indoor for heating through the longitudinal circulation system, the heating of the bathroom can be quickly realized after the longitudinal circulation system is adopted, long-time preheating is not needed, the bathing experience of residents is optimized, the traditional heating systems such as a bathroom heater with more power consumption are replaced, the temperature difference before and after the residents take a bath is reduced, and the health of the residents is facilitated.
In summer with little temperature increase demand, the circulating system can be weakened or closed by adjusting the MCU, so that unnecessary waste is prevented, and the purposes of energy conservation and emission reduction are reflected. The longitudinal circulation is adopted to reduce the occupied area, and the maximum heat transfer efficiency can be achieved in a limited area; in addition, the flat pipe has light weight, convenient installation and maintenance and good bearing performance, and can be used for various heating media.
As shown in fig. 10, which is a schematic structural diagram of a heat exchange coil system according to an embodiment of the present invention, when the temperature of water in a circulation system does not reach the temperature required by a user, the heat exchange coil module 15 is started, on one hand, a hot fluid enters the heat exchange coil 21 to be further heated, on the other hand, in the flowing process of the hot fluid, heat in the coil is subjected to forced convection heat exchange with the bathroom environment through the fan 58 to continuously release the heat to the bathroom environment, and the surface of the fins 57 is coated with graphene to further enhance the heat conductivity of the heat exchange coil, so that when a shower is heated, the temperature of inlet water is about 32 ℃, and a large amount of waste heat can.
The experimental test shows that: when the shower heating is about 12 minutes, the temperature of the inlet water is about 32 ℃, a large amount of waste heat can be utilized for heating, and the shower heating system has the characteristics of radiation heat transfer, energy conservation and enhanced heat exchange effect.
As shown in fig. 11, which is a schematic view of a partially enlarged structure of a straight pipe and a bent pipe of a heat exchange coil according to an embodiment of the present invention, the flow velocity of shower water at a bend of the coil passing through a heat exchange coil 59 is too high, the heat exchange effect is significantly weakened, in order to ensure the heat exchange efficiency of the coil, graphene coatings with different thicknesses are coated at different positions of the coil, and a coating with a thickness of 0.7mm is coated at a coating 60 at the straight pipe of the heat exchange coil; the coating 61 of the elbow of the heat exchange coil is coated with a coating of 0.3mm at the elbow of the heat exchange coil because the hot water flow resistance is large and the heat exchange effect is not obvious. Tests show that after the graphene is coated, the water temperature at a position 5mm away from a pipe orifice can reach 53 ℃, the water temperature is improved by nearly 10 ℃ compared with that of the original system, the heat exchange effect can be greatly improved, and energy is saved.
Test and test: the shower heating is carried out for about 12 minutes, the water inlet temperature is about 32 ℃, a large amount of waste heat can be utilized for heating, and the shower heating system has the characteristics of radiation heat transfer, energy conservation, enhanced heat exchange effect and the like. The waste heat of the hot water after showering is effectively utilized to exchange heat with the air in the bathroom, and the energy-saving effect is achieved.
As shown in fig. 12, which is a schematic view of a heat exchange coil structure according to an embodiment of the present invention, a hot fluid enters the graphene coil from a water inlet pipe 56 of the heat exchange coil, flows along an internal pipe, and finally flows out from a water outlet pipe 55 of the heat exchange coil. And the surface of the fin 57 is coated with graphene, so that the heat conduction capability of the fin 57 is enhanced, and the heat exchange quantity is increased.
The invention relates to a micro-scale flat tube shower water longitudinal circulation system and a temperature increasing method.A solar auxiliary heating system module and a low-temperature heat exchange system module which are convenient to flexibly call are arranged, a water temperature control and detection system is matched, the water temperature in a tube is monitored in real time, a user can set the required indoor temperature on an operation interface, and the flow of hot water in the tube is controlled to ensure the proper temperature; the outside heating is adopted, so that the temperature in the room and the bathroom is increased, the comfort level of people in bathing is ensured, the energy consumption is reduced, and the expenditure is saved; the micro-scale flat tubes are used, so that the turbulence degree of the fluid is enhanced, the aim of enhancing convection heat transfer is fulfilled, meanwhile, the micro-scale flat tubes longitudinally surround the wall body to reduce the occupation of indoor space, a better heat transfer effect is achieved, and the manufacturing cost is low; set up fore-and-aft annular pipeline, utilize the hot water waste heat after the shower to carry out the heat transfer with bathroom and indoor air, the heat transfer is effectual, heat transfer efficiency is high and energy-conserving, effectively promotes people's shower in winter, the travelling comfort of living, promotes the energy saving.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (9)

1. The micro-scale flat tube shower water longitudinal circulation system is characterized by comprising a low-temperature heat exchange system and a heating module (16), wherein the heating module (16) comprises: an electric auxiliary system circulation loop and a solar auxiliary heat circulation loop,
the electric auxiliary system circulation loop comprises a first valve K which is connected in sequence1A first water tank (8), a first water pump (10), a second water tank (12), a second water pump (14),A room and bathroom micro-scale flat tube longitudinal circulation system (4), and the first valve K1The other end of the water tank is connected with a tap water pipe, and a first electric heater (9) and a second electric heater (11) which are connected with the control cabinet (3) are respectively arranged in the first water tank (8) and the second water tank (12);
the solar auxiliary heat circulation loop comprises a control cabinet (3), a solar heat collector (1), a solar heat collection circulation pump (7) and a first valve K which are sequentially connected1The parallel electric auxiliary system circulation loops;
the first water tank (8) is connected with the control cabinet (3) through a second temperature sensor (5), the second water tank (12) is connected with the control cabinet (3) through a third temperature sensor (6), and a first temperature sensor (2) is arranged between a water outlet of the solar heat collector (1) and the control cabinet (3);
the low-temperature heat exchange system comprises a heat exchange coil (21), and the room and bathroom micro-scale flat tube longitudinal circulation system (4) is connected with the heat exchange coil through a third valve K3Is connected with the heating module (16) to form a first low-temperature heat exchange circulation branch; the room and bathroom micro-scale flat tube longitudinal circulating system (4) passes through a fourth valve K4Is connected with the heat exchange coil (21) to form a second low-temperature heat exchange circulating branch;
one end of the heat exchange coil (21) is connected with a sewer or a low-temperature heat exchange system through a first selector valve (20), and the other end of the heat exchange coil is connected with the sewer or the low-temperature heat exchange system through a second selector valve (22).
2. The micro-scale flat tube shower water longitudinal circulation system according to claim 1, wherein the room and bathroom micro-scale flat tube longitudinal circulation system (4) comprises a bathroom micro-scale flat tube longitudinal circulation system (17) and a room micro-scale flat tube longitudinal circulation system (18) which are connected in parallel, and the first selector valve (20) is connected with the room micro-scale flat tube shower water longitudinal circulation system through a seventh valve K7Is connected with a longitudinal circulating system (17) of the micro-scale flat pipe of the bathroom through a ninth valve K9Is connected with a room micro-scale flat tube longitudinal circulation system (18).
3. The micro-scale flat tube shower water longitudinal circulation system as claimed in claim 2, wherein micro-scale flat tubes (27) are installed in the walls of the bathroom micro-scale flat tube longitudinal circulation system (17) and the room micro-scale flat tube longitudinal circulation system (18), and two sides of the cross section of each micro-scale flat tube (27) are light plates which are convex outwards and are arc-shaped.
4. The micro-scale flat tube shower water longitudinal circulation system as claimed in claim 3, wherein the room micro-scale flat tube longitudinal circulation system (18) comprises a room control instrument (48) and a humidifying instrument (49) connected with the room control instrument (48).
5. The micro-scale flat tube shower water longitudinal circulation system according to claim 1, wherein the solar heat collector (1) and the first water tank (8) are installed separately, the solar heat collector (1) is arranged outside the bathroom, and the first water tank (8) is arranged inside the bathroom.
6. The micro-scale flat tube shower water longitudinal circulation system according to claim 1, wherein a straight tube graphene coating (60) with the thickness of 0.6-0.9 mm is coated at a straight tube of the heat exchange coil (21), and an elbow graphene coating (61) with the thickness of 0.2-0.4 mm is coated at an elbow of the heat exchange coil (21).
7. A micro-scale flat tube shower water longitudinal circulation system according to claim 1, characterized in that a flow meter (13) is arranged between the second water tank (12) and the room and bathroom micro-scale flat tube longitudinal circulation system (4).
8. The method for warming a micro-scale flat tube shower water longitudinal circulation system according to any one of claims 1 to 7, comprising the following method steps:
in the heating mode, the third valve K is opened3The first low-temperature heat exchange circulation branch is conducted, the control cabinet (3) controls the solar auxiliary heat circulation loop and/or the electric auxiliary system circulation loop to be conducted, heating is carried out through the temperature-increasing heating module (16), and heated hot water flows from the second water tank (12)A longitudinal circulating pipe arranged in a room and bathroom micro-scale flat pipe longitudinal circulating system (4) is arranged to realize temperature increase;
the preheated water can flow back to the longitudinal circulating system (4) of the micro-scale flat tubes in the room and the bathroom, and the system is cooled by water, otherwise, the water flows into a sewer through a first selector valve (20);
when the micro-scale flat tube longitudinal circulation system (4) of the room and the bathroom cannot meet the set temperature requirement, the fourth valve K is selectively opened4The second low-temperature heat exchange circulation branch is conducted, the heat exchange coil module (15) is started, water flowing through the heating module (16) flows through the second selector valve (22) and is heated through the heat exchange coil module (15), and the seventh valve K7And/or ninth valve K9Opening, and heating water flowing into the micro-scale flat tube longitudinal circulation system (17) of the bathroom and/or the micro-scale flat tube longitudinal circulation system (18) of the room;
when the heating of the room and the bathroom micro-scale flat tube longitudinal circulation system (4) is not needed, the second selector valve (22) is communicated with a sewer.
9. The method for warming the micro-scale flat tube shower water longitudinal circulation system according to claim 8, further comprising cooling the room and bathroom micro-scale flat tube longitudinal circulation system (4), and opening an eighth valve K8Opening the seventh valve K7And/or ninth valve K9Running water passes through an eighth valve K8Flows into the micro-scale flat tube longitudinal circulation system (4) of the room and the bathroom for cooling.
CN202010586013.7A 2020-06-24 2020-06-24 Micro-scale flat tube shower water longitudinal circulation system and warming method Active CN111720880B (en)

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Publication number Priority date Publication date Assignee Title
CN1105746A (en) * 1994-01-19 1995-07-26 陈乐生 Heating method and its device by using household gas water heater
CN201875791U (en) * 2010-11-30 2011-06-22 罗益龙 Solar heat exchange unit for separate heating and hot water supply
CN202598666U (en) * 2012-05-12 2012-12-12 陈科 Ground heating energy-saving device used in washroom
CN104315588A (en) * 2014-11-13 2015-01-28 苏州英合伦金属科技有限公司 Multifunctional solar energy warming system
CN204574623U (en) * 2015-03-20 2015-08-19 广东美的暖通设备有限公司 Micro-channel heat exchanger and there is the anhydrous floor heating system of this micro-channel heat exchanger
CN209027121U (en) * 2018-06-22 2019-06-25 国网冀北节能服务有限公司 A kind of heat collection combined electric heat supply system of high-efficiency solar

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