CN113237160A - Wastewater treatment and multifunctional circulating waste heat recycling system - Google Patents

Wastewater treatment and multifunctional circulating waste heat recycling system Download PDF

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Publication number
CN113237160A
CN113237160A CN202110550856.6A CN202110550856A CN113237160A CN 113237160 A CN113237160 A CN 113237160A CN 202110550856 A CN202110550856 A CN 202110550856A CN 113237160 A CN113237160 A CN 113237160A
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China
Prior art keywords
heat
waste heat
water
heat exchanger
waste
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CN202110550856.6A
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CN113237160B (en
Inventor
郑慧凡
刘恩海
田国记
巨福军
殷勇高
魏晓童
张文芸
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Zhongyuan University of Technology
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Zhongyuan University of Technology
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2035—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0096—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater combined with domestic apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0275—Other waste gases from food processing plants or kitchens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/818—Employing electrical discharges or the generation of a plasma
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • F24F2005/0064—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/18—Details or features not otherwise provided for combined with domestic apparatus
    • F24F2221/183—Details or features not otherwise provided for combined with domestic apparatus combined with a hot-water boiler
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/272—Solar heating or cooling
    • 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
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Analytical Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention provides a wastewater treatment and multifunctional circulating waste heat recycling system, which is used for solving the problems that the existing wastewater treatment and waste (residual) heat recycling are low, and the wastewater and the residual heat of a toilet, a kitchen and a building of a hotel can not be effectively utilized; the first heat exchanger is connected with the waste heat recovery system, the waste heat recovery system is connected with the heat pump air conditioning system, the heat pump air conditioning system is provided with a defrosting system, and the defrosting system is connected with the waste heat recovery system. The invention can effectively utilize waste water and waste heat of toilets, kitchens and buildings of hotels and guest houses, and saves cost.

Description

Wastewater treatment and multifunctional circulating waste heat recycling system
Technical Field
The invention relates to the technical field of energy conservation and environmental protection, in particular to a wastewater treatment and multifunctional circulating waste heat recycling system, and specifically relates to a wastewater treatment system for toilets, a waste (waste) heat utilization system for toilets, a kitchen wastewater treatment system and a kitchen oil smoke treatment system in hotels and guest houses.
Background
With the rapid development of social economy and the increasingly fierce competition of the service industry market, the problems of energy crisis, environmental deterioration, global warming and the like are increasingly prominent. A large amount of low-grade heat energy is not fully utilized by people, and only in terms of waste (surplus) heat, according to the statistics of the International Energy Agency (IEA), 50-60% of the total energy consumption worldwide every year is lost in the form of waste heat. Meanwhile, environmental protection treatment, energy saving, consumption reduction and effective recycling of energy of wastewater (rainwater and sewage) of buildings become hot problems concerned by the current service industry gradually.
At present, waste water (rainwater and sewage) and waste heat of toilets, kitchens and building buildings in large hotels are seriously wasted, oil smoke in bathing waste water and kitchens contains a large amount of available heat energy, a large amount of waste (residual) heat is not recycled in the operation process of the hotels, so that not only is the energy waste serious, but also certain influence is caused on the environment. If the waste (residual) heat in the toilet and the kitchen in the hotel can be effectively utilized, the heat pump air conditioner auxiliary heat, shower and domestic hot water supply can be helped to reduce more burden of heat energy cost for the hotel operation manager, and the heat pump air conditioner auxiliary heat, shower and domestic hot water supply also have important significance for optimizing the hotel operation management, saving energy, reducing consumption and recycling energy.
Disclosure of Invention
The invention provides a waste water treatment and multifunctional circulating waste heat recycling system, which can effectively utilize waste water and waste heat of toilets, kitchens and buildings of hotels and buildings and save cost.
In order to achieve the purpose, the technical scheme of the invention is realized as follows: a wastewater treatment and multifunctional circulating waste heat recycling system comprises a water collecting tank for collecting wastewater, wherein the water collecting tank is connected with a sewage filtering device, the sewage filtering device is respectively connected with a solar heat collecting system and a phase change heat storage system through a first heat exchanger, and the phase change heat storage system is connected with water using equipment; the first heat exchanger is connected with the waste heat recovery system, the waste heat recovery system is connected with the heat pump air conditioning system, the heat pump air conditioning system is provided with a defrosting system, and the defrosting system is connected with the waste heat recovery system.
The waste heat recovery system comprises a first waste heat recovery unit arranged on the range hood, a second waste heat recovery unit arranged on the chimney and a third waste heat recovery unit for recovering room waste heat, wherein the first waste heat recovery unit, the second waste heat recovery unit and the third waste heat recovery unit are all connected with an indoor heat exchanger of the heat pump air-conditioning system, a defrosting system is arranged on an outdoor heat exchanger of the heat pump air-conditioning system, and the defrosting system is respectively connected with the first waste heat recovery unit, the second waste heat recovery unit and the third waste heat recovery unit.
The upper part of the range hood is provided with a fan, the lower part of the range hood is provided with a filtering and oil removing mechanism, two sides of the fan are provided with sound absorption devices, and the fan is provided with a first waste heat recovery unit; the upper part of the fan is communicated with a main chimney, the main chimney is provided with a temperature detector, and the upper part of the main chimney is respectively communicated with a first chimney and a second chimney; and a second waste heat recovery unit is arranged in the second chimney.
The first waste heat recovery unit comprises a soft belt, the soft belt is wound on a blade of a fan on the range hood and is used for absorbing heat generated in the rotation process of the blade and absorbing heat stored in a porous structure of sound absorption fibers of the sound absorption device due to air friction; the second waste heat recovery unit comprises an elastic diaphragm and a drainage sheet, the elastic diaphragm is arranged on the inner wall of the second chimney, and the drainage sheet is arranged inside the second chimney; the heat on the soft belt and the high-temperature flue gas processed by the elastic membrane and the drainage sheet are respectively conveyed to the first heat exchanger, the indoor heat exchanger and/or the defrosting system through the pump, so that heat exchange with water in the first heat exchanger is realized, auxiliary heating is performed on a room through the indoor heat exchanger, or defrosting is performed on the outdoor heat exchanger through the defrosting system; the third waste heat recovery unit comprises a hot air exhaust fan, and the hot air exhaust fan is arranged above the toilet; and the hot air exhaust machine is respectively connected with the defrosting system and the indoor heat exchanger of the heat pump air-conditioning system.
The oil filtering and removing mechanism comprises a filter screen, an ion purifier and an oil collecting box, the oil collecting box is arranged at the lower part of the range hood, the filter screen is arranged above the oil collecting box, and the ion purifier is arranged above the filter screen; the sound absorption device comprises sound absorption fibers, and the sound absorption fibers are made of porous materials; the sound absorption fiber is arranged on the bracket, and the bracket contains holes; the ion purifier comprises an emission base and plasma tubes, wherein the emission base can emit ultraviolet rays, and the plasma tubes are located in the middle of the emission base and are arranged in a W shape.
The sewage filtering device comprises a primary filtering mechanism and a secondary filtering mechanism, the upper part of the sewage filtering device is connected with the lower part of the water collecting tank, the primary filtering mechanism is arranged on the upper part of the sewage filtering device, and the secondary filtering mechanism is arranged on the lower part of the sewage filtering device.
The preliminary filtering mechanism comprises plate-type filtering nets which are arranged in a staggered mode, and active carbon is laid on the plate-type filtering nets; the secondary filtering mechanism comprises a rotary filtering cylinder, a spiral ladder is arranged in the rotary filtering cylinder and connected with a rotary motor, an ultrafiltration membrane is arranged on the inner wall of the rotary filtering cylinder, a water outlet is formed in the lower part of the rotary filtering cylinder, and the water outlet is communicated with the first heat exchanger; the bottom of the rotary filter cylinder is communicated with a sewage discharge outlet.
The heat exchange tube is arranged in the first heat exchanger, the outer wall of the heat exchange tube is provided with a plurality of longitudinal vortex ring generators, the longitudinal vortex ring generators are rectangular, the included angle between the longitudinal vortex ring generators and the wall surface of the heat exchange tube is 30 degrees, and the longitudinal vortex ring generators are arranged on the wall surface of the heat exchange tube in a staggered mode.
The water collecting tank is respectively connected with a first water collecting tank arranged in the toilet and a second water collecting tank arranged below a vegetable washing pool in the kitchen; the first water collecting tank and the second water collecting tank are both sinking funnel-shaped water collecting tanks, and U-shaped pipes for preventing odor from flowing backwards are arranged below the second water collecting tank; the water using equipment comprises a water faucet at the upper part of the vegetable washing pool and a shower nozzle in the toilet, the water faucet is connected with the phase change heat storage system, and the shower nozzle is connected with the phase change heat storage system through a cavitator.
The solar heat collecting system is a solar heat collecting plate, the solar heat collecting plate is respectively connected with the first heat exchanger and the phase change heat storage system, and the solar heat collecting plate is connected with the phase change heat storage system through a valve K7Is connected with water using equipment; the phase-change heat storage system is a phase-change heat accumulator which is respectively connected with the first heat exchanger, the solar heat collection plate, the water outlet and the water using equipment; the defrosting system comprises a spray header, the spray header is arranged on an outdoor heat exchanger of the heat pump air conditioning system and passes through a valve K1The heat pump is connected with a heat exhausting fan of the third waste heat recovery unit; the heat pump air conditioning system comprises an indoor heat exchanger, a throttle valve, an outdoor heat exchanger and a compressor which are sequentially connected, wherein the indoor heat exchanger passes through a valve K2Is connected with a heat exhausting fan of a third waste heat recovery unit, and an indoor heat exchanger (17) passes through a valve K5Is connected with a pump.
Compared with the prior art, the invention has the beneficial effects that: the method mainly comprises the following steps: (1) waste water treatment (filtration and waste heat recovery) systems for toilets and kitchens of hotels; (2) a system for efficiently filtering waste water and recycling waste (residual) heat of building buildings; (3) a filtering, oil removing and noise reducing treatment system for kitchens of hotels; (4) the heat pump air conditioner coil pipe assists the heat deicing (frost), indoor heat system of assisting. The invention has 2 auxiliary heating deicing (defrosting) modes, 2 room auxiliary heating modes and 3 waste heat utilization modes, can effectively utilize waste water and waste heat of toilets, kitchens and buildings of hotels and guest houses, and saves cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the range hood in fig. 1.
Fig. 3 is a schematic view of the structure of the sound absorption device of fig. 2.
Fig. 4 is an enlarged schematic view of the stent of fig. 3.
Fig. 5 is a schematic structural diagram of a first waste heat recovery unit according to the present invention.
Fig. 6 is a schematic plan view of a second cartridge of the present invention.
Fig. 7 is a schematic structural view of the sewage filtering apparatus of the present invention.
Fig. 8 is an enlarged schematic view of the plate filter of the present invention.
Fig. 9 is an enlarged schematic view of the ion purifier of the present invention.
FIG. 10 is a schematic view of the arrangement of the longitudinal vortex ring generator of the present invention.
In the figure, 1 is a toilet, 2 is a heat exhausting fan, 3 is a shower nozzle, 4 is a first water collecting tank, 5 is a faucet, 6 is a vegetable washing sink, 7 is a second water collecting tank, 8 is a U-shaped pipe, 9 is a temperature detector, 10 is a range hood, 11 is a sound absorption device, 12 is a sound absorption fiber, 13 is an ion purifier, 14 is a filter screen, 15 is an oil collecting box, 16 is a shower head, 17 is an indoor heat exchanger, 18 is a compressor, 19 is a throttle valve, 20 is a phase change heat accumulator, 21 is a cavitator, 22 is a first chimney, 23 is a second chimney, 24 is a pump, 25 is a solar heat collecting plate, 26 is a water collecting tank, 27 is a sewage filtering device, 28 is a plate type filter screen, 29 is activated carbon, 30 is an ultrafiltration membrane, 31 is a spiral ladder, 32 is a sewage draining outlet, 33 is a water outlet, 34 is a first heat exchanger, 35 is a heat exchange pipe, 36 is a fan, 37 is a water inlet, 38 is an outdoor heat exchanger, 39 is a main chimney, 40 is a motor, 41 is a longitudinal vortex ring generator, 42 is a soft belt, 43 is a blade, 44 is an emission base, 45 is a plasma tube, 46 is a support, 47 is an elastic membrane and 48 is a diversion sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, a wastewater treatment and multifunctional circulating waste heat recycling system comprises a water collecting tank 26 for collecting wastewater in a toilet and a kitchen, wherein the water collecting tank 26 is connected with a sewage filtering device 27, the sewage filtering device 27 filters water in the water collecting tank 26 twice for subsequent domestic use, the sewage filtering device 27 is respectively connected with a solar heat collecting system and a phase change heat storage system through a first heat exchanger 34, the first heat exchanger 34 exchanges heat between the filtered water and heat of the waste heat recycling system to increase the temperature of the water, the solar heat collecting system and the phase change heat storage system further increase the temperature of the water, and the phase change heat storage system is connected with a water using device to supply water for domestic use; the first heat exchanger 34 is connected with a waste heat recovery system, the waste heat recovery system is connected with a heat pump air conditioning system, the waste heat recovery system processes and heats filtered water to provide heat exchange energy for the heat pump air conditioning system, a defrosting system is arranged on the heat pump air conditioning system, the defrosting system is connected with the waste heat recovery system, and defrosting can be performed on an outdoor unit of the heat pump air conditioning system by using heat of the waste heat recovery system. The invention provides a system with high-efficiency filtration for treating waste water of hotels and guest houses and recycling waste (residual) heat for treating waste water of toilets, kitchens and buildings of the hotels and guest houses, and a multifunctional recycling waste (residual) heat recycling system, so that the treatment for treating the waste water of the hotels and guest houses and the recycling and reusing of the multifunctional recycling waste (residual) heat are realized. The invention mainly comprises the following steps: a waste water treatment (filtration and waste heat recovery) system, namely a sewage filtering device 27, of a toilet and a kitchen of a hotel, and a waste water high-efficiency filtration and waste (residual) heat recovery system of a building are embodied in the sewage high-efficiency filtering device, a heat exchanger 34 with a vortex ring device, a third waste heat recovery unit for recycling hot air of the toilet, a filtering and oil removing mechanism for treating kitchen smoke, a second waste heat recovery unit for recovering waste heat of a chimney and the like, and a waste heat recovery system for filtering and removing oil and reducing noise of the hotel kitchen; the heat pump air conditioner coil pipe auxiliary heating deicing (defrosting), the indoor auxiliary heating system, namely the heat pump air conditioner system and the defrosting system on the heat pump air conditioner coil pipe auxiliary heating deicing system can realize the waste water treatment of toilets, the utilization of waste (residual) heat of the toilets, the waste water treatment of kitchens, the reutilization of waste heat of oil smoke treatment of kitchens and the like in hotels and hotels. Waste water discharged from a toilet and a kitchen firstly enters the water collecting tank 26, purified water filtered by the sewage filtering device 27 exchanges heat with flue gas of a waste heat recovery system of the kitchen in the first heat exchanger 34, and the water after heat exchange is used for washing vegetables, washing hands and bathing.
Further, the water collecting tank 26 is connected to the first water collecting tank 4 provided in the toilet 1 and the second water collecting tank 7 provided under the vegetable washing sink 6 of the kitchen, respectively. The first water collecting tank 4 is used for collecting domestic water in a toilet, and the second water collecting tank 7 is used for collecting domestic water in a vegetable washing pool 6 in a kitchen. The first water collecting tank 4 and the second water collecting tank 7 are both sinking funnel-shaped water collecting tanks, and U-shaped pipes 8 for preventing odor from flowing backwards are arranged below the second water collecting tanks 7; the first water collection sump 4 prevents the foul smell of the sewage from escaping on the one hand, and on the other hand, the radius gradually decreases from the inlet to the outlet, forming a spiral suction inside the first water collection sump, which allows the bathing water on the floor of the toilet to flow rapidly into the first water collection sump 4 and then into the water collection tank 26. The sewage of bathroom is at first through the second water catch bowl 7 of formula infundibulate that sinks, can prevent sewer stink on the one hand and overflow, on the other hand reduces from the entry to the export radius gradually, form the spiral suction in second water catch bowl inside, can make sewage flow into fast to the water catch bowl, flow direction U type pipe 8, U type pipe 8 can prevent that the stink in the sewage pipes from intraductal entering kitchen, do the second floor guarantee for the air circumstance of kitchen, the sewage that passes through U type pipe 8 and the bathroom first water catch bowl 4 come out together flow into header tank 26.
The water using equipment comprises a water tap 5 at the upper part of the vegetable washing pool 6 and a shower nozzle 3 in the toilet 1, the water tap 5 is connected with the phase change heat storage system, the shower nozzle 3 is connected with the phase change heat storage system through a cavitator 21, and water in the phase change heat storage 20 flows to the nozzle 3 after being heated in the cavitator 21 for bathing. Cavitation is a hydrodynamic phenomenon in which cavitation bubbles are formed, developed, shrunk and finally collapsed because the local pressure is lower than the saturated vapor pressure at the corresponding temperature in the liquid flowing process. It features high jet flow, high pressure and high speed, and several small holes in its throat. The cavitator 21 utilizes jet flow, high pressure and high speed, and facilitates energy conversion. That is, the purified water filtered by the sewage filtering apparatus 27 is subjected to heat exchange by the first heat exchanger 34, and then subjected to heat exchange by the solar heat collecting system and the phase change heat storage system, and then supplied to the faucet and the shower nozzle 3 on the vegetable washing sink.
The waste heat recovery system comprises a first waste heat recovery unit arranged on the range hood 10, a second waste heat recovery unit arranged on the chimney and a third waste heat recovery unit for recovering room waste heat, the first waste heat recovery unit, the second waste heat recovery unit and the third waste heat recovery unit are all connected with the indoor heat exchanger 17 of the heat pump air-conditioning system, a defrosting system is arranged on the outdoor heat exchanger 38 of the heat pump air-conditioning system, and the defrosting system is respectively connected with the first waste heat recovery unit, the second waste heat recovery unit and the third waste heat recovery unit. Be equipped with in the kitchen and filter the deoiling mechanism that filters the deoiling to the flue gas that gets into lampblack absorber 10, the sound absorbing device 11 that makes an uproar falls, the first waste heat recovery unit that has the waste heat recovery effect, the second waste heat recovery unit to the waste heat recovery effect of chimney.
The heat pump air conditioning system comprises an indoor heat exchanger 17, a throttle valve 19, an outdoor heat exchanger 38 and a compressor 18 which are connected in sequence, and heating is achieved. The indoor heat exchanger 17 is an evaporator (condenser) and the outdoor heat exchanger 38 is a condenser (evaporator), i.e., they can be used as either an evaporator or a condenser, but one is used as an evaporator and the other is used as a condenser. The refrigerant is pressurized by the compressor 18 to become a high-temperature high-pressure gaseous refrigerant, enters the indoor heat exchanger 17, is a condenser at the moment, is condensed, liquefied and releases heat to become liquid, and simultaneously heats indoor air, thereby achieving the purpose of increasing the indoor temperature; the liquid refrigerant is throttled and decompressed by the throttle valve 19, enters the heat exchanger 38 of the outdoor unit, is an evaporator at this time, evaporates and gasifies to absorb the heat of the external environment, at this time, the coil pipe surface of the outdoor heat exchanger 38 of the air conditioner freezes (frost), and the shower head is used for assisting the outdoor heat exchanger 38 to remove the ice (frost) through the shower head 16 of the defrosting system by utilizing the waste (residual) heat of bathing in a toilet, the waste (residual) heat of kitchen oil smoke, the waste heat of building buildings and the like, and simultaneously, the waste (residual) heat can also assist the indoor air conditioner to heat.
A fan 36 is arranged at the upper part of the range hood 10, a filtering and oil removing mechanism is arranged at the lower part of the range hood 10, sound absorption devices 11 are arranged at two sides of the fan 36, and a first waste heat recovery unit is arranged on the fan 36; the upper portion of the fan 36 is communicated with the main chimney 39, the main chimney 39 is provided with a temperature detector 9, the temperature detector 9 is used for detecting the temperature of the main chimney, the upper portion of the main chimney 39 is respectively communicated with the first chimney 22 and the second chimney 23, and the main chimney 39 is communicated with the first chimney 22 and the second chimney 23 through a valve K4The first chimney 22 is communicated with the first chimney 22, the first chimney 22 is a common chimney, and the second chimney 23 is a heat exchange enhancement chimney; the smoke filtered by the filtering and oil removing mechanism enters the main smoke tube 39, and when the temperature detector 9 detects that the temperature of the smoke is less than 20 ℃, the valve K4And opening, discharging the flue gas to a common chimney 22, and when the temperature of the main chimney is more than 20 ℃, entering a heat exchange enhancement chimney 23 to recycle the waste heat of the flue gas.
As shown in fig. 5, the first waste heat recovery unit includes a soft belt 42, and the soft belt 42 is wound around the wind on the range hood 10On the blades 43 of the machine 36, the soft bands 42 are used to absorb heat generated during the rotation of the blades 43, and at the same time, absorb heat stored in the porous material of the sound-absorbing fibers 12 of the sound-absorbing device 11 due to air friction due to the negative pressure created by the fan. The two portions of heat are stored together in the flexible strip 42 and the heat flows through the pump 24 in two paths, one path passing through K2The flow direction indoor heat exchanger 17 assists heating of the room through a valve K2And valve K1The outdoor heat exchanger 38 is assisted by the shower head 16 to remove ice (frost); the other stream flows to a first heat exchanger 34 for heat exchange with water.
A second waste heat recovery unit is arranged in the second chimney 23, as shown in fig. 6, the second waste heat recovery unit includes an elastic membrane 47 and a drainage sheet 48, the elastic membrane 47 is arranged on the inner wall of the second chimney 23, the elastic membrane 47 is provided with folds, the drainage sheet 48 is arranged in the second chimney 23, and the drainage sheet 48 is a curved drainage sheet. The flue gas enters the rear collision induced flow sheet 48 and the elastic membrane 47 from the main chimney 39, the temperature of the flue gas rises along with the continuous collision and friction of flue gas molecules on the induced flow sheet 48, meanwhile, when the flue gas flows through the fold-shaped elastic membrane 47 on the two sides of the chimney, the boundary layer is broken, the disturbance of the flue gas is enhanced, the effect of heat exchange is enhanced, the flue gas with the rising temperature flows to two paths through the pump 24, one path flows to the indoor heat exchanger 17 to supplement heat to the room, and the other path flows through the valve K2And valve K1The outdoor heat exchanger 38 is defrosted by the shower head 16, and the other path flows to the heat exchanger 34 to exchange heat with water. Namely, the heat on the soft belt 42 and the high-temperature flue gas processed by the elastic membrane 47 and the drainage sheet 48 are respectively conveyed to the first heat exchanger 34, the indoor heat exchanger 17 and/or the defrosting system through the pump 24, so that heat exchange with water in the first heat exchanger 34 is realized, auxiliary heat is carried out on a room through the indoor heat exchanger 17, or defrosting is carried out on the outdoor heat exchanger 38 through the defrosting system.
The third waste heat recovery unit comprises a hot air exhaust fan 2, and the hot air exhaust fan 2 is arranged above the toilet; the heat exhausting fan 2 is respectively connected with the defrosting system and the indoor heat exchanger 17 of the heat pump air conditioning system. The indoor heat exchanger 17 passes through a valve K2Connected with a hot air exhaust machine 2 of a third waste heat recovery unit, and an indoor heat exchanger 17 is connected with a valveDoor K5Is connected to pump 24 and pump 24 is connected to first heat exchanger 34. The defrosting system comprises a spray header 16, the spray header 16 is arranged on an outdoor heat exchanger 38 of the heat pump air conditioning system, and the spray header 16 passes through a valve K1Is connected with a hot air exhaust machine 2 of the third waste heat recovery unit. Hot air generated during bathing in the toilet is discharged through the upper heat discharging fan 2, and the valve K1And is turned on to assist in defrosting the outdoor heat exchanger 38. When defrosting is not needed, the valve K1Closed, valve K2The hot air is turned on to flow into the indoor heat exchanger 17 to perform the supplementary heating of the room.
As shown in fig. 2, a fume hood is disposed at the lower portion of the range hood 10, and under the action of the range hood 10, fume enters the range hood through the fume hood. The oil filtering and removing mechanism comprises a filter screen 14, an ion purifier 13 and an oil collecting box 15, the oil collecting box 15 is arranged on the lower portion of the range hood 10, namely the upper portion of an oil fume hood, the filter screen 14 is arranged above the oil collecting box 15, the filter screen 14 is made of non-woven fabrics, oil filtered by the filter screen 14 conveniently enters the oil collecting box 15, and the ion purifier 13 is arranged above the filter screen 14. As shown in fig. 9, the ion purifier 13 includes an emission base 44 and a plasma tube 45, the emission base 44 can emit ultraviolet rays, and the plasma tube 45 is located in the middle of the emission base 44 and arranged in a W shape.
The range hood 10 sucks the smoke into the inner cavity of the range hood 10 due to the negative pressure formed by the fan 36, the oil smoke firstly passes through the filter screen 14, the filter screen 14 is obliquely arranged to filter 95% of the oil in the smoke, when the oil amount on the filter screen 14 reaches a certain amount, the oil smoke naturally falls and is discharged into the oil collecting box 15 below due to the action of gravity, and the filtered smoke continuously moves upwards to pass through the secondary filtering device, namely the ion purifier 13; the emission base 44 of the ion purifier 13 emits ultraviolet rays, the plasma tube 45 arranged in a W shape can increase the contact area between the plasma tube 45 and the flue gas, when the flue gas passes through the plasma tube 45, under the action of oxygen atom free radicals in oxygen plasma, excited oxygen molecules, electrons and the ultraviolet rays emitted by the emission base, grease molecules are finally oxidized into water and carbon dioxide molecules, the process that organic macromolecules are gradually degraded is provided, the finally generated carbon dioxide molecules are introduced by the fan 36 and continue to move upwards, the water molecules are gasified in the process of contacting with the high-temperature flue gas and move upwards together with the carbon dioxide molecules, and the flue gas passing through the ion purifier 13 is completely degreased and dedusted.
The sound absorbers 11 are symmetrically and obliquely arranged at both sides of the fan to absorb noise generated from the fan 36. The sound absorption device 11 includes sound absorption fibers 12, and the sound absorption fibers 12 are porous materials having many minute gaps and continuous bubbles, thereby having air permeability. As shown in fig. 3, the sound-absorbing fiber 12 is disposed on the support 46 and attached to the support 46, and the support 46 has holes, as shown in fig. 4, so that sound waves can better penetrate through the sound-absorbing fiber 12, and both the left side and the right side of the sound-absorbing fiber 12 can transmit sound waves, when sound waves generated by the fan 36 are incident to the surface of the porous material from the left side of the sound-absorbing fiber 12, firstly, vibration generated by the sound waves causes air movement in small holes or gaps in the sound-absorbing fiber, which causes friction with the hole wall, air abutting against the hole wall and the surface of the sound-absorbing fiber is not easily moved by the influence of the hole wall, and due to the action of friction and viscous force, a considerable part of sound energy is converted into heat energy, so that the sound waves are attenuated, and the reflected sound is attenuated to achieve the purpose of sound absorption; secondly, the heat loss caused by the heat exchange among the air in the small holes of the sound absorption fibers also attenuates the sound energy, the weakened sound waves pass through the sound absorption fibers and the bracket and reach the inner wall surface of the range hood, a part of the sound waves are reflected and enter the sound absorption fibers again from the left side of the sound absorption fibers, the sound energy is attenuated again, and the purpose of reducing the noise is achieved. A small portion of the heat energy generated by the friction is carried with the flue gases into the main chimney 39 and another portion is stored in a soft band 42 on the blades 43 of the fan 36.
As shown in fig. 7, the sewage filtering apparatus 27 includes a preliminary filtering means and a secondary filtering means, the water inlet 37 at the upper portion of the sewage filtering apparatus 27 is connected to the lower portion of the water collecting tank 26, the preliminary filtering means is provided at the upper portion of the sewage filtering apparatus 27, and the secondary filtering means is provided at the lower portion of the sewage filtering apparatus 27. After sewage in the toilet and the kitchen flows into the water collecting tank 26, the sewage flows into the sewage filtering device 27 after being settled and clarified, and the sewage filtering device 27 can realize primary filtering and secondary filtering. The water in the toilet belongs to the water in buildings.
The preliminary filtering mechanism comprises plate-type filtering nets 28 which are arranged in a staggered mode, the plate-type filtering nets 28 are arranged above the sewage filtering device 27 and are arranged in a staggered mode left and right in a stepped mode, and a layer of activated carbon 29 is uniformly laid on the plate-type filtering nets 28; as shown in fig. 8, the plate-type filter screen 28 is crescent-shaped, so that water can collide with each other conveniently; filtered water in the water collecting tank 26 enters the sewage filtering device 27 through the inlet port 37, and firstly flows to the stepped left-right staggered type filter screen 28, so that the contact area between sewage and the active carbon 29 on the plate type filter screen 28 is increased, the active carbon 29 can effectively adsorb impurities in the sewage, and the quality of sewage filtration is ensured while the sewage is rapidly filtered.
The secondary filtering mechanism comprises a rotary filter cylinder, the rotary filter cylinder is arranged at the lower part of the plate-type filter screen 28, a spiral ladder 31 is arranged in the rotary filter cylinder, the spiral ladder 31 is connected with a rotary motor 40, an ultrafiltration membrane 30 is arranged on the inner wall of the rotary filter cylinder, the main material of the ultrafiltration membrane is polysulfone PS, the auxiliary material is polyethylene glycol PEG, and the polyethylene glycol PEG is a high molecular polymer and serves as a surfactant: the components with different chemical properties are uniformly mixed together. Meanwhile, polyethylene glycol and water have strong interaction. A certain gap is formed between the ultrafiltration membrane 30 and the inner wall of the cylinder of the rotary filter cylinder, a water outlet 33 is formed in the lower part of the rotary filter cylinder, the water outlet 33 is formed in the side wall of the cylinder of the rotary filter cylinder and is positioned above the bottom of the ultrafiltration membrane 30, so that water filtered by the ultrafiltration membrane 30 is discharged out of the sewage filtering device 27, and the water outlet 33 is communicated with the first heat exchanger 34; the lower part of the rotary filter cylinder is a conical cylinder, the bottom of the conical cylinder is communicated with a drain outlet 32, and the drain outlet 32 is communicated with the bottom of the ultrafiltration membrane. After most impurities in the sewage are filtered by the plate type filter screen 28, the sewage enters the rotary filter cylinder, the rotary motor 40 drives the spiral ladder 31 inside to rotate, the preliminarily filtered sewage rotates along with the spiral ladder 31, and the temperature of the sewage is increased under the centrifugal action, the gravity action and the collision process of the sewage and the spiral ladder; due to the centrifugal action in the rotating process, sewage is thrown to the ultrafiltration membrane 30 on the wall surface of the barrel, the sewage thrown to the ultrafiltration membrane has certain pressure under the centrifugal action, when small molecules in the sewage flow through the surface of the ultrafiltration membrane, small molecular substances and water permeate the ultrafiltration membrane, secondary filtration of the sewage is realized, the sewage becomes reusable purified water, the purified water falls to the water outlet 33 under the action of gravity and flows to the first heat exchanger 34, and macromolecular substances such as impurities contained in the sewage are intercepted and recovered by the ultrafiltration membrane and are discharged from the sewage outlet 32.
A heat exchange tube 35 is arranged in the first heat exchanger 34, and a plurality of longitudinal vortex ring generators 41 are arranged on the outer wall of the heat exchange tube 35. As shown in fig. 10, the longitudinal vortex ring generators 41 are rectangular, the angle between the longitudinal vortex ring generators 41 and the wall surface of the heat exchange tube 35 is 30 °, and the longitudinal vortex ring generators 41 are arranged on the wall surface of the heat exchange tube 35 in a staggered manner. Purified water flowing out of a water outlet 33 of the sewage filtering device flows into a first heat exchanger 34, and smoke waste heat and hot air generated in the bathing process respectively pass through a valve K2Valve K5When the water level reaches the longitudinal vortex ring generator 41, the fluid can be well attached to the interface of the heat exchange tube 35 and moves forward in a streamline form, after reaching the longitudinal vortex ring generator, the longitudinal vortex ring is generated to improve a local flow field, the surrounding fluid is changed into turbulent flow from laminar flow, the radial flow capacity and the turbulent flow strength of the fluid are enhanced, a heat exchange boundary layer is weakened, and the heat exchange between the smoke and the water is enhanced. The water after heat exchange by the first heat exchanger 34 absorbs the temperature of the flue gas, the temperature of the flue gas is reduced and discharged to the atmosphere, and the temperature of the water is increased and flows into the phase change heat accumulator 20 of the phase change heat accumulation system.
The solar heat collecting system is a solar heat collecting plate 25, the solar heat collecting plate 25 is used for absorbing heat of solar energy, the solar heat collecting plate 25 is respectively connected with the first heat exchanger 34 and the phase change heat storage system, and the solar heat collecting plate 25 is connected with the phase change heat storage system through a valve K7The solar water heater is connected with water using equipment to directly realize the purpose of providing domestic hot water by utilizing the heat of solar energy; the phase change heat storage system is a phase change heat storage 20, the phase change heat storage 20 is respectively connected with the first heat exchanger 34, the solar heat collection plate 25, the water outlet 33, the water tap 5 of the water using equipment and the shower head 3, and the phase change heat storage 20 is used for facilitating heat exchange and energy storage. Phase change heat accumulator 20 and water outletThe function of the phase connection is to facilitate energy storage. The phase change heat accumulator 20 passes through a valve K6Respectively connected with the first heat exchanger 34 and the solar heat collecting plate 25, and the phase change heat accumulator 20 is connected with the solar heat collecting plate 25 through a valve K3Be connected with shower nozzle 3, phase change heat accumulator 20 is connected with shower nozzle 3 through the cavitator, thereby directly provides cold water and hot water for shower nozzle 3 as required.
The invention provides 2 auxiliary heating deicing (defrosting) modes, 2 room auxiliary heating modes and 3 waste heat utilization modes.
The first defrosting mode in the auxiliary heating deicing (defrosting) mode is as follows: hot air generated during bathing in the toilet is discharged through the upper hot air blower 2, and the valve K1Open and flow to the showerhead 16 to defrost the indoor heat exchanger 38. The second defrosting mode is as follows: (enhanced heat exchange chimney + soft band) when there is no bath, the smoke in the second chimney 23 of the kitchen ventilator 10 enters the rear collision induced flow sheet 48 and the elastic membrane 47 from the main chimney 39, the smoke temperature rises with the continuous collision and friction induced flow sheet of the smoke molecules, meanwhile, when the smoke flows through the fold-shaped elastic membrane on the two sides of the chimney, the boundary layer is broken, the disturbance of the smoke is strengthened, the enhanced heat exchange effect is achieved, the smoke temperature rises and cooperates with the soft band 42 on the fan blade 43 of the ventilator 10, the soft band 42 absorbs the heat generated in the rotation process of the fan blade 43, and the heat stored in the porous structure of the sound absorption fiber 12 due to the air friction passes through the pump 24 and the valve K5、K2、K1And flows to the shower head to defrost the shower head 16.
The first auxiliary heating mode of the room auxiliary heating mode is as follows: hot air generated during bathing in the toilet is discharged through the upper fan, and the valve K1Closing, lower valve K2And when the air conditioner is started, hot air flows into the indoor heat exchanger 17 to perform auxiliary heating on the room.
The second auxiliary heating mode is as follows: (enhanced heat exchange chimney + soft belt) when no bath is carried out, the smoke in the second chimney 23 of the kitchen range hood 10 enters the rear collision drainage sheet 48 and the elastic membrane 47 from the main chimney 39, the smoke temperature rises along with the continuous collision and friction of smoke molecules on the drainage sheet, and meanwhile, the smoke flows through the fold-shaped elastic membrane on the two sides of the second chimneyWhen the temperature of the smoke rises, the smoke is cooperated with the soft belt 42 on the fan blade 43 of the range hood 10, the soft belt 42 absorbs heat generated in the rotation process of the fan blade 43, and the heat stored in the porous structure of the sound absorption fiber 12 due to air friction passes through the pump 24 and the valve K5And flows into the indoor heat exchanger 17 to supplement heat to the room.
The first waste heat utilization mode in the waste heat utilization modes is as follows: domestic hot water for washing vegetable and hand
The sewage from the toilet and the kitchen vegetable sink in the water collecting tank 26 flows into the sewage filtering device 27 after being precipitated, flows to the first heat exchanger 34 through the primary filtering of the plate type filter screen 28 and the secondary filtering of the rotary filter cartridge, at this time, the smoke in the second chimney 23 of the kitchen range hood enters the rear collision guide sheet 48 and the elastic membrane 47, along with the continuous collision and friction guide sheet of smoke molecules, the smoke temperature rises, meanwhile, when the smoke flows through the fold-shaped elastic membrane 47 at the two sides of the second chimney, the boundary layer is broken, the disturbance of the smoke is enhanced, the heat exchange is enhanced, the smoke temperature rises and cooperates with the soft belt 42 on the fan blade 43, the soft belt 42 absorbs the heat generated in the rotating process of the fan blade 43, and the heat stored in the porous structure of the sound absorption fiber due to the air friction flows into the first heat exchanger 34 through the pump 24, the longitudinal vortex ring generator 41 in the first heat exchanger 34 enhances the heat exchange between the flue gas and the water by exchanging heat with the water treated by the sewage filtering device 27. The water after heat exchange absorbs the temperature of the flue gas, the temperature of the flue gas is reduced and discharged to the atmosphere, the temperature of the water is increased, and the temperature of the water is increased through a valve K6Flows into the phase change heat accumulator 20 to store heat, the temperature is about 35 ℃, and hot water can be used for washing vegetables and hands in the vegetable washing basin. After the phase change heat accumulator 20 releases heat, the water inside the phase change heat accumulator changes into cold water and returns to the first heat exchanger 34 again to participate in heat exchange.
The second waste heat utilization mode is as follows: shower (with sun)
The sewage from the toilet and kitchen vegetable sink in the water collecting tank 26 flows into the sewage treatment device after being precipitated, and is primarily filtered and rotated by the plate-type filter screen 28After the secondary filtration of the filter cartridge, the water flows to the heat exchanger 34 from the water outlet 33, exchanges heat with high-temperature flue gas from the second chimney 23 and hot air in the fan soft belt 42, then flows into the phase change heat accumulator 20, hot water in the phase change heat accumulator 20 has a certain temperature and is used for bathing, the temperature of the hot water is lower, for this reason, the water in the phase change heat accumulator flows to the solar heat collector 25, and after the water is heated, the water is divided into two paths, one path of which passes through the valve K6Flows into the phase change heat accumulator 20 to store heat for later use; one path of hot water passes through a valve K7For bathing.
The third waste heat utilization mode is three: shower (Sun-free)
The sewage from the toilet and the kitchen vegetable washing basin in the water collecting tank 26 flows into the sewage treatment device after precipitation, flows to the first heat exchanger 34 through the water outlet 33 after primary filtration of the plate type filter screen 28 and secondary filtration of the rotary filter cylinder, exchanges heat with high-temperature smoke from the second smoke cylinder 23 and hot air in the fan soft belt 42, and then flows into the phase change heat accumulator 20, the hot water in the phase change heat accumulator 20 has a certain temperature and is used for bathing, the temperature of the hot water is lower, and therefore the water in the phase change heat accumulator 20 flows to the shower nozzle 3 after being heated in the cavitator 21 for bathing. The waste heat recovery and reuse is used for bath auxiliary heat, and is the utilization of waste heat.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A wastewater treatment and multifunctional circulating waste heat recycling system comprises a water collecting tank (26) for collecting wastewater, and is characterized in that the water collecting tank (26) is connected with a sewage filtering device (27), the sewage filtering device (27) is respectively connected with a solar heat collecting system and a phase change heat storage system through a first heat exchanger (34), and the phase change heat storage system is connected with water using equipment; the first heat exchanger (34) is connected with a waste heat recovery system, the waste heat recovery system is connected with a heat pump air conditioning system, a defrosting system is arranged on the heat pump air conditioning system, and the defrosting system is connected with the waste heat recovery system.
2. The wastewater treatment and multifunctional circulating waste heat recovery and utilization system according to claim 1, wherein the waste heat recovery system comprises a first waste heat recovery unit arranged on the range hood (10), a second waste heat recovery unit arranged on the chimney, and a third waste heat recovery unit for recovering room waste heat, the first waste heat recovery unit, the second waste heat recovery unit and the third waste heat recovery unit are all connected with an indoor heat exchanger (17) of the heat pump air conditioning system, a defrosting system is arranged on an outdoor heat exchanger (38) of the heat pump air conditioning system, and the defrosting system is respectively connected with the first waste heat recovery unit, the second waste heat recovery unit and the third waste heat recovery unit.
3. The wastewater treatment and multifunctional circulating waste heat recycling system according to claim 2, wherein a fan (36) is arranged at the upper part of the range hood (10), a filtering and oil removing mechanism is arranged at the lower part of the range hood (10), sound absorption devices (11) are arranged at two sides of the fan (16), and a first waste heat recycling unit is arranged on the fan (36); the upper part of the fan (36) is communicated with a main chimney (39), a temperature detector (9) is arranged on the main chimney (39), and the upper part of the main chimney (39) is respectively communicated with a first chimney (22) and a second chimney (23); and a second waste heat recovery unit is arranged in the second chimney (23).
4. The wastewater treatment and multifunctional cyclic waste heat recovery and utilization system according to claim 2 or 3, wherein the first waste heat recovery unit comprises a soft belt (42), the soft belt (42) is wound on a blade (43) of a fan (36) on the range hood (10), the soft belt (42) is used for absorbing heat generated in the rotation process of the blade (43) and absorbing heat stored in a porous structure of a sound absorption fiber (12) of the sound absorption device (11) due to air friction; the second waste heat recovery unit comprises an elastic diaphragm (47) and a flow guiding sheet (48), the elastic diaphragm (47) is arranged on the inner wall of the second chimney (23), and the flow guiding sheet (48) is arranged inside the second chimney (23); the heat on the soft belt (42) and the high-temperature flue gas processed by the elastic membrane (47) and the flow guiding sheet (48) are respectively conveyed to the first heat exchanger (34), the indoor heat exchanger (17) and/or a defrosting system through the pump (24), so that heat exchange with water in the first heat exchanger (34) is realized, auxiliary heat is carried out on a room through the indoor heat exchanger (17), or defrosting is carried out on the outdoor heat exchanger (38) through the defrosting system; the third waste heat recovery unit comprises a hot air exhaust fan (2), and the hot air exhaust fan (2) is arranged above the toilet; the heat exhausting fan (2) is respectively connected with the defrosting system and the indoor heat exchanger (17) of the heat pump air conditioning system.
5. The wastewater treatment and multifunctional circulating waste heat recycling system according to claim 3, wherein the filtering and oil removing mechanism comprises a filter screen (14), an ion purifier (13) and an oil collecting box (15), the oil collecting box (15) is arranged at the lower part of the range hood (10), the filter screen (14) is arranged above the oil collecting box (15), and the ion purifier (13) is arranged above the filter screen (14); the sound absorption device (11) comprises sound absorption fibers (12), and the sound absorption fibers (12) are made of porous materials; the sound absorption fibers (12) are arranged on the support (46), and holes are formed in the support (46); the ion purifier (13) comprises an emission base (44) and a plasma tube (45), wherein the emission base (44) can emit ultraviolet rays, and the plasma tube (45) is positioned in the middle of the emission base (44) and arranged in a W shape.
6. The wastewater treatment and multifunctional circulating waste heat recycling system according to claim 1, 2, 3 or 5, wherein the sewage filtering device (27) comprises a primary filtering mechanism and a secondary filtering mechanism, the upper part of the sewage filtering device (27) is connected with the lower part of the water collecting tank (26), the primary filtering mechanism is arranged at the upper part of the sewage filtering device (27), and the secondary filtering mechanism is arranged at the lower part of the sewage filtering device (27).
7. The wastewater treatment and multifunctional circulating waste heat recycling system according to claim 6, wherein the preliminary filtering mechanism comprises plate-type filtering nets (28) which are arranged in a staggered manner, and activated carbon (29) is paved on the plate-type filtering nets (28); the secondary filtering mechanism comprises a rotary filtering cylinder, a spiral ladder (31) is arranged in the rotary filtering cylinder, the spiral ladder (31) is connected with a rotary motor (40), an ultrafiltration membrane (30) is arranged on the inner wall of the rotary filtering cylinder, a water outlet (33) is arranged at the lower part of the rotary filtering cylinder, and the water outlet (33) is communicated with a first heat exchanger (34); the bottom of the rotary filter cylinder is communicated with a sewage outlet (32).
8. The wastewater treatment and multifunctional circulating waste heat recycling system according to claim 1 or 7, wherein a heat exchange tube (35) is arranged in the first heat exchanger (34), the outer wall of the heat exchange tube (35) is provided with a plurality of longitudinal vortex ring generators (41), the longitudinal vortex ring generators (41) are rectangular, the included angle between the longitudinal vortex ring generators (41) and the wall surface of the heat exchange tube (35) is 30 degrees, and the longitudinal vortex ring generators (41) are arranged on the wall surface of the heat exchange tube (35) in a staggered manner.
9. The wastewater treatment and multifunctional cyclic waste heat recovery and utilization system according to claim 8, characterized in that the water collection tank (26) is connected with a first water collection tank (4) arranged in the toilet (1) and a second water collection tank (7) arranged below the vegetable washing sink (6) in the kitchen, respectively; the first water collecting tank (4) and the second water collecting tank (7) are both sinking funnel-shaped water collecting tanks, and a U-shaped pipe (8) for preventing odor from flowing backwards is arranged below the second water collecting tank (7); the water using equipment comprises a water faucet (5) at the upper part of the vegetable washing pool (6) and a shower nozzle (3) in the toilet (1), wherein the water faucet (5) is connected with the phase-change heat storage system, and the shower nozzle (3) is connected with the phase-change heat storage system through a cavitator (21).
10. The wastewater treatment and multifunctional circulating waste heat recycling system according to claim 8, wherein the solar heat collecting system is a solar heat collecting plate (25), the solar heat collecting plate (25) is respectively connected with the first heat exchanger (34) and the phase-change heat storage system, and the solar heat collecting plate (25) is connected with the phase-change heat storage system through a valve K7Is connected with water using equipment; the phase change heat storage system is a phase change heat storage (20), and the phase change heat storage (20) is respectively connected with the first heat exchanger (34), the solar heat collection plate (25), the water outlet (33) and the water using equipment; the defrosting system comprises a spray header (16), the spray header (16) is arranged on an outdoor heat exchanger (38) of the heat pump air conditioning system, and the spray header (16) passes through a valve K1Is connected with a hot air exhaust machine (2) of a third waste heat recovery unit; the heat pump air conditioning system comprises an indoor heat exchanger (17), a throttle valve (19), an outdoor heat exchanger (38) and a compressor (18) which are sequentially connected, wherein the indoor heat exchanger (17) passes through a valve K2Connected with a hot air exhaust machine (2) of a third waste heat recovery unit, and an indoor heat exchanger (17) is connected with a hot air exhaust machine through a valve K5Is connected with a pump (24).
CN202110550856.6A 2021-05-20 2021-05-20 Wastewater treatment and multifunctional circulating waste heat recycling system Active CN113237160B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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CN114877735A (en) * 2022-05-09 2022-08-09 南京航空航天大学 Forming machine oil-containing waste gas waste heat recovery system with energy memory
CN115400540A (en) * 2022-08-19 2022-11-29 安徽正刚新能源科技有限公司 High-temperature waste steam heat recovery device

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CN102889703A (en) * 2012-10-31 2013-01-23 南京德磊科技有限公司 Bathroom sewage waste heat recovery device
CN103850298A (en) * 2014-02-25 2014-06-11 天津大学 System for recycling waste heat energy of waste hot shower water
CN106813415A (en) * 2016-12-28 2017-06-09 冯新华 Air-source flue gas source dehumidification air conditioner hot water apparatus
CN208124402U (en) * 2018-04-25 2018-11-20 西安科技大学 A kind of integrated apparatus of commercial kitchen waste heat recycling and solar energy heating

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CN102840636A (en) * 2011-06-25 2012-12-26 荣国华 Heat energy recovery device
CN102889703A (en) * 2012-10-31 2013-01-23 南京德磊科技有限公司 Bathroom sewage waste heat recovery device
CN103850298A (en) * 2014-02-25 2014-06-11 天津大学 System for recycling waste heat energy of waste hot shower water
CN106813415A (en) * 2016-12-28 2017-06-09 冯新华 Air-source flue gas source dehumidification air conditioner hot water apparatus
CN208124402U (en) * 2018-04-25 2018-11-20 西安科技大学 A kind of integrated apparatus of commercial kitchen waste heat recycling and solar energy heating

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* Cited by examiner, † Cited by third party
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CN114877735A (en) * 2022-05-09 2022-08-09 南京航空航天大学 Forming machine oil-containing waste gas waste heat recovery system with energy memory
CN115400540A (en) * 2022-08-19 2022-11-29 安徽正刚新能源科技有限公司 High-temperature waste steam heat recovery device

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