CN105387612A - Energy-saving shower device - Google Patents

Energy-saving shower device Download PDF

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Publication number
CN105387612A
CN105387612A CN201510923016.4A CN201510923016A CN105387612A CN 105387612 A CN105387612 A CN 105387612A CN 201510923016 A CN201510923016 A CN 201510923016A CN 105387612 A CN105387612 A CN 105387612A
Authority
CN
China
Prior art keywords
water
hot water
energy
spent hot
saving shower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510923016.4A
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Chinese (zh)
Other versions
CN105387612B (en
Inventor
曹恩思
许科星
刘凤祥
李渡成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongshan Sally Shower Equipment Co Ltd
Original Assignee
Zhongshan Sally Shower Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN2015203001843 priority Critical
Priority to CN201520300184 priority
Priority to CN201520300069 priority
Priority to CN2015203000696 priority
Priority to CN201510505471.2A priority patent/CN105178398A/en
Priority to CN2015105054712 priority
Priority to CN201510923016.4A priority patent/CN105387612B/en
Application filed by Zhongshan Sally Shower Equipment Co Ltd filed Critical Zhongshan Sally Shower Equipment Co Ltd
Publication of CN105387612A publication Critical patent/CN105387612A/en
Application granted granted Critical
Publication of CN105387612B publication Critical patent/CN105387612B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H1/00Water heaters having heat generating means, e.g. boiler, flow- heater, water-storage heater
    • F24H1/10Continuous-flow heaters, i.e. in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/0005Details for water heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/0005Details for water heaters
    • F24H9/0042Cleaning arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates, burners, or heating elements
    • F24H9/1809Arrangement or mounting of grates, burners, or heating elements for water heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/20Arrangement or mounting of control or safety devices or methods
    • F24H9/2007Arrangement or mounting of control or safety devices or methods for water heaters

Abstract

The invention relates to an energy-saving shower device. The energy-saving shower device is technically characterized by comprising a shower post, a waste water heat recycling device, a floor drain device, a first water pump, a heater and a water draining device, wherein the waste water heat recycling device comprises a waste hot water channel and a to-be-heated water channel, and to-be-heated water and waste hot water in the waste hot water channel can perform heat exchange; a cold water inlet and a hot water outlet are formed in the two ends of the to-be-heated water channel respectively; a waste hot water inlet and a waste cold water outlet are formed in the two ends of the waste hot water channel respectively; a waste water channel communicated with a water draining pipe and a waste hot water recycling opening capable of leading out the waste hot water in the waste water channel for recycling are arranged in the floor drain device; one end of the first water pump is connected with the waste hot water recycling opening, and the other end of the first water pump is connected with the waste hot water inlet; the water inlet end of the heater is connected with the hot water outlet; the water draining device is connected with the water outlet end of the heater. The energy-saving shower device is simple in structure, can recycle waste hot water and can improve the utilization efficiency of heat energy.

Description

A kind of energy-saving shower bath
[technical field]
The present invention relates to a kind of shower bath.
[background technology]
When shower, the hot water spilt during shower under normal circumstances directly flowed out after entering floor drain, and these waste water have certain heat, and direct discharge can cause heat-energy losses.Current a kind of easy shower column or Shower screen on the market, do not have waste heat recovery plant, the heat in waste water cannot be carried out absorption recycling, waste most of heat energy.
Another kind of similar energy-saving showering post or Shower screen are the structure that heat exchange is carried out in chassis plane heat absorption, employing be the heat-exchange device of heat transfer free convection, its heat recovery rate is low, and energy-saving effect is not obvious.
[summary of the invention]
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of structure simple, energy recovery efficiency is high, energy-saving shower bath.
In order to solve the problem, the present invention by the following technical solutions:
A shower bath for novel energy-saving, is characterized in that, comprises
One shower column;
One wastewater heat recovery device, comprise spent hot water's passage and the aquaporin to be heated that can carry out heat exchange with the spent hot water in described spent hot water's passage, described aquaporin two ends to be heated are respectively equipped with cold water access port and hot water outlet, and described spent hot water's passage two ends are respectively equipped with spent hot water's access port and useless cooling water outlet;
One floor drain apparatus, is provided with the waste water tunnel communicated with drainpipe and spent hot water's recovery port spent hot water in waste water tunnel being drawn recovery in it;
One first water pump, its one end is connected with described spent hot water's recovery port, the other end and spent hot water's access port) be connected;
One heater, its water intake end is connected with described hot water outlet;
One discharging device, it is connected with the water side of described heater.
A kind of energy-saving shower bath as above, it is characterized in that: described floor drain apparatus comprises floor drain body, described waste water tunnel is in described floor drain body, the wastewater outlet that the two ends of described waste water tunnel are respectively equipped with waterwater entrance and communicate with drainpipe, is provided with the control valve controlling drainpipe and waste water tunnel break-make in described waste water tunnel.
A kind of energy-saving shower bath as above, it is characterized in that: in described waste water tunnel, be provided with filter, floor drainage cover plate is provided with in described waterwater entrance, described spent hot water's recovery port to be located on floor drain body sidewall and to be located between filter and wastewater outlet, and described drainpipe is provided with the draining access port be communicated with described useless cooling water outlet.
A kind of energy-saving shower bath as above, it is characterized in that: described filter comprises annular stack shell, described annular stack shell and described waste water tunnel inwall separate, described annular stack shell lower end is provided with bottom face, described annular canister is held with it and is provided with support end face, described annular canister is provided with multiple filtration side opening with it, and described bottom face is provided with filtration bottom outlet.
A kind of energy-saving shower bath as above, it is characterized in that: described aquaporin to be heated is located in described spent hot water's passage, be provided with the first turbulator between described spent hot water's passage and aquaporin to be heated, be arranged with by thermal insulation layer outside described spent hot water's passage.
A kind of energy-saving shower bath as above, it is characterized in that: the first described turbulator comprises the inner ring sleeve be enclosed within outside aquaporin to be heated, the outer shroud being connected with and can shoring described spent hot water's vias inner walls is separated outside described inner ring sleeve, be provided with turbulent flow passageway between described inner ring sleeve and outer shroud, described turbulent flow passageway is provided with two ends and is respectively equipped with the unequal water inlet of internal diameter and delivery port.
A kind of energy-saving shower bath as above, it is characterized in that: described water inlet internal diameter is greater than delivery port internal diameter, described outer shroud is taper, and described outer shroud is provided with the axial gap allowing turbulent flow passageway expose, and described inner ring sleeve is provided with the bayonet socket be stuck on aquaporin to be heated.
A kind of energy-saving shower bath as above, is characterized in that: be provided with the second turbulator in described aquaporin to be heated, and the second described turbulator is spring.
A kind of energy-saving shower bath as above, is characterized in that: described wastewater heat recovery device is located in described shower column.
A kind of energy-saving shower bath as above, is characterized in that: described shower column comprises hollow housing, and described wastewater heat recovery device is tubular body and madial wall along described hollow housing is arranged.
A kind of energy-saving shower bath as above, is characterized in that: described heater is located in described shower column.
A kind of energy-saving shower bath as above, is characterized in that: described heater is located at outside described shower column.
A kind of energy-saving shower bath as above, is characterized in that: one end of described cold water access port connects the second water pump extracted out by its inner cold water.
A kind of energy-saving shower bath as above, is characterized in that: described discharging device comprises the outlet valve be connected with described heater, and described outlet valve is connected with water injector.
A kind of energy-saving shower bath as above, is characterized in that: described outlet valve three shunt valves, and described water injector is that top spray head, hand shower and the back of the body be connected with described three shunt valves respectively sprays.
Beneficial effect of the present invention has: after spent hot water enters into floor drain, through spent hot water's recovery port, pumped in spent hot water's access port by the first water pump, cold water (running water) enters in heating water passage by cold water access port on the other hand, can be pumped by the second water pump, when flowing in passage, spent hot water is to cold water transferring heat, carry out heat exchange, flowed out by discharging device after cold water is heated, for bathing, the temperature that heater makes water can reach enough is set in shower column, and after waste water is utilized, get rid of through drainpipe, structure is simple, energy recovery efficiency is high, filter comprises two parts and filters, one is filter bottom outlet, waste water enters rear direct impact filtration bottom outlet, waste water can not be discharged rapidly, but can be stored in annular stack shell, when it has certain altitude, waste water flows out from filtration side opening, so just can play cushioning effect, reduce water to the impact of bottom, improve filterability, by using turbulator, avoiding laminar flow, making coolant-temperature gage even, improve its heat exchanger effectiveness.
[accompanying drawing explanation]
Fig. 1 is the master map schematic diagram of the embodiment of the present invention one;
Fig. 2 is the inside annexation schematic diagram of the embodiment of the present invention one;
Fig. 3 is the I portion enlarged drawing of Fig. 2;
Fig. 4 is the partial sectional view of wastewater heat recovery device of the present invention;
Fig. 5 is the stereogram of the second turbulator of the present invention;
Fig. 6 is the main sectional view of floor drain apparatus of the present invention;
Fig. 7 is the exploded view of embodiments of the invention one;
Fig. 8 is the master map schematic diagram of the embodiment of the present invention two;
Fig. 9 is the inside annexation schematic diagram of the embodiment of the present invention two.
[detailed description of the invention]
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As shown in Figures 1 to 9, a kind of energy-saving shower bath, comprises
One shower column 1, comprises hollow housing 14, can be square or oval hollow form;
One wastewater heat recovery device 2, it is located in shower column 1, comprise spent hot water's passage 22 and the aquaporin to be heated 21 of heat exchange can be carried out with the spent hot water in spent hot water's passage 22, aquaporin 21 two ends to be heated are respectively equipped with cold water access port 23 and hot water outlet 24, one end of cold water access port 23 connects pumps to the second water pump 7 in it by cold water, pumps in aquaporin 21 to be heated by the second water pump 7 by running water; Spent hot water's passage 22 two ends are respectively equipped with spent hot water's access port 25 and useless cooling water outlet 26; Aquaporin 21 to be heated is located in spent hot water's passage 22, the first turbulator 27 is provided with between spent hot water's passage 22 and aquaporin to be heated 21, the effect of the first turbulator 27 can also play the effect of support to spent hot water's passage 22 and location, is arranged with by thermal insulation layer 13 outside spent hot water's passage 22; First turbulator 27 comprises the inner ring sleeve 28 be enclosed within outside aquaporin 21 to be heated, the outer shroud 29 being connected with and can shoring spent hot water's passage 22 inwall is separated outside inner ring sleeve 28, be provided with turbulent flow passageway 20 between inner ring sleeve 28 and outer shroud 29, turbulent flow passageway 23 is provided with two ends and is respectively equipped with the unequal water inlet 201 of internal diameter and delivery port 202.Water inlet 201 internal diameter is greater than delivery port 202 internal diameter, namely water inlet and water yield unequal, turbulent flow can be caused, outer shroud 29 is taper, outer shroud 29 is provided with the axial gap 203 allowing turbulent flow passageway 20 expose, and inner ring sleeve 28 is provided with and is provided with the second turbulator 11, second turbulator 11 in bayonet socket 204. aquaporin 21 to be heated that is stuck on aquaporin 21 to be heated is spring, according to actual needs according to the pitch of spring, suitable spring can be selected.The effect of turbulator prevents water flow stationary from flowing, and cause water temperature delamination, higher near the surface temperature of spent hot water, away from then low, be unfavorable for the heat exchange of water like this; Wastewater heat recovery device 2 is tubular body and madial wall along hollow housing 14 is arranged, and empty capsid 14 madial wall is provided with groove, and tubular body is located in groove, easy for installation;
One floor drain apparatus 3, is provided with the waste water tunnel 33 communicated with drainpipe 32 and the spent hot water's recovery port 34 spent hot water in waste water tunnel 33 being drawn recovery in it; Floor drain apparatus 3 comprises floor drain body 31, waste water tunnel 33 is in floor drain body 31, the wastewater outlet 15 that the two ends of waste water tunnel 33 are respectively equipped with waterwater entrance 14 and communicate with drainpipe 32, filter 36 is provided with in waste water tunnel 33, floor drainage cover plate 12 is provided with in waterwater entrance 14, the control valve 35 controlling drainpipe 32 and waste water tunnel 33 break-make is also provided with in waste water tunnel 33, spent hot water's recovery port 34 to be located on floor drain body 31 sidewall and to be located between filter 36 and wastewater outlet 15, and drainpipe 32 is provided with the draining access port 16 be communicated with useless cooling water outlet 26.When the water yield increases, the gravity of water is greater than the elastic force of spring, under the Action of Gravity Field of water, control valve 35 moves down, and makes spring-compressed, and water can enter into drainpipe 32 from wastewater outlet 15, when discharge reduction, hydraulic control valve 35, under the elastic-restoring force of spring, upwards moves reset; Filter 36 comprises annular stack shell 37, and annular stack shell 37 lower end is provided with bottom face 38, and annular stack shell 37 upper end is provided with and supports end face 39, and annular stack shell 37 is provided with multiple filtration side opening 30, and bottom face 38 is provided with and filters bottom outlet 40;
One first water pump 6, its one end is connected with spent hot water's recovery port 34, and the other end is connected with spent hot water's access port 25, pumps in spent hot water's access port 25 in the first water pump 6 spent hot water recovery port 34;
One heater 4, its water intake end is connected with hot water outlet 24, embodiment one, and heater 4 is located in shower column 1, makes whole apparatus integration; Embodiment two, heater 4 is located at outside shower column 1; Heater 4 can be water heater, heat-generating pipe etc., is used for guaranteeing that the temperature of water is required temperature, owing to entering a heat exchange, so decrease the heating of heater 4, improves the utilization rate of waste water;
One discharging device 5, it is connected with the water side of heater 4, and discharging device 5 comprises the outlet valve 51 be connected with heater 4, and outlet valve 51 is connected with water injector.Outlet valve 51 3 shunt valves, water injector is the top spray that is connected with three shunt valves respectively 52, hand shower 53 and carries on the back spray 54, three shunt valves and have three delivery ports, connects top spray 52, hand shower 53 and back of the body spray 54 respectively.Second water pump 7 connects cold water source (running water), running water is pumped in aquaporin 21 to be heated, after being heated by water heater 4, by top spray 52, hand shower 53 and back of the body spray 54 etc., hot water is flow in floor drain body 31, then is pumped spent hot water in spent hot water's passage 22 by the first water pump 6, heat energy is passed to cold water by spent hot water, cold water is heated, thus realizes the recycling of the heat energy of waste water.

Claims (15)

1. an energy-saving shower bath, is characterized in that, comprises
One shower column (1);
One wastewater heat recovery device (2), comprise spent hot water's passage (22) and the aquaporin to be heated (21) of heat exchange can be carried out with the spent hot water in described spent hot water's passage (22), described aquaporin to be heated (21) two ends are respectively equipped with cold water access port (23) and hot water outlet (24), and described spent hot water's passage (22) two ends are respectively equipped with spent hot water's access port (25) and useless cooling water outlet (26);
One floor drain apparatus (3), is provided with the waste water tunnel (33) communicated with drainpipe (32) and the spent hot water's recovery port (34) waste water tunnel (33) interior spent hot water being drawn recovery in it;
One first water pump (6), its one end is connected with described spent hot water's recovery port (34), and the other end is connected with spent hot water's access port (25);
One heater (4), its water intake end is connected with described hot water outlet (24);
One discharging device (5), it is connected with the water side of described heater (4).
2. a kind of energy-saving shower bath according to claim 1, it is characterized in that: described floor drain apparatus (3) comprises floor drain body (31), described waste water tunnel (33) is in described floor drain body (31), the wastewater outlet (15) that the two ends of described waste water tunnel (33) are respectively equipped with waterwater entrance (14) and communicate with drainpipe (32), is provided with the control valve (35) controlling drainpipe (32) and waste water tunnel (33) break-make in described waste water tunnel (33).
3. a kind of energy-saving shower bath according to claim 2, it is characterized in that: in described waste water tunnel (33), be provided with filter (36), floor drainage cover plate (12) is provided with in described waterwater entrance (14), described spent hot water's recovery port (34) to be located on floor drain body (31) sidewall and to be located between filter (36) and wastewater outlet (15), and described drainpipe (32) is provided with the draining access port (16) be communicated with described useless cooling water outlet (26).
4. a kind of energy-saving shower bath according to claim 3, it is characterized in that: described filter (36) comprises annular stack shell (37), described annular stack shell (37) and described waste water tunnel (33) inwall separate, described annular stack shell (37) lower end is provided with bottom face (38), described annular stack shell (37) upper end is provided with and supports end face (39), described annular stack shell (37) is provided with multiple filtration side opening (30), and described bottom face (38) is provided with and filters bottom outlet (40).
5. a kind of energy-saving shower bath according to claim 1, it is characterized in that: described aquaporin to be heated (21) is located in described spent hot water's passage (22), be provided with the first turbulator (27) between described spent hot water's passage (22) and aquaporin to be heated (21), be arranged with by thermal insulation layer (13) outside described spent hot water's passage (22).
6. a kind of energy-saving shower bath according to claim 5, it is characterized in that: described the first turbulator (27) comprises and is enclosed within aquaporin to be heated (21) inner ring sleeve outward (28), the outer shroud (29) being connected with and can shoring described spent hot water's passage (22) inwall is separated outside described inner ring sleeve (28), turbulent flow passageway (20) is provided with between described inner ring sleeve (28) and outer shroud (29), described turbulent flow passageway (23) is provided with two ends and is respectively equipped with the unequal water inlet of internal diameter (201) and delivery port (202).
7. a kind of energy-saving shower bath according to claim 6, it is characterized in that: described water inlet (201) internal diameter is greater than delivery port (202) internal diameter, described outer shroud (29) is taper, described outer shroud (29) is provided with the axial gap (203) allowing turbulent flow passageway (20) expose, and described inner ring sleeve (28) is provided with the bayonet socket (204) be stuck on aquaporin to be heated (21).
8. a kind of energy-saving shower bath according to claim 6, is characterized in that: be provided with the second turbulator (11) in described aquaporin to be heated (21), and described the second turbulator (11) is spring.
9. a kind of energy-saving shower bath according to claim 1, is characterized in that: described wastewater heat recovery device (2) is located in described shower column (1).
10. a kind of energy-saving shower bath according to claim 9, it is characterized in that: described shower column (1) comprises hollow housing (4), described wastewater heat recovery device (2) is arranged for tubular body and along the madial wall of described hollow housing (4).
11. a kind of energy-saving shower baths according to claim 1, is characterized in that: described heater (4) is located in described shower column (1).
12. a kind of energy-saving shower baths according to claim 1, is characterized in that: described heater (4) is located at described shower column (1) outward.
13. a kind of energy-saving shower baths according to claim 1, is characterized in that: one end of described cold water access port (23) connects the second water pump (7) extracted out by its inner cold water.
14. a kind of energy-saving shower baths according to claim 1, it is characterized in that: described discharging device (5) comprises the outlet valve (51) be connected with described heater (4), described outlet valve (51) is connected with water injector.
15. a kind of energy-saving shower baths according to claim 14, it is characterized in that: described outlet valve (51) three shunt valves, described water injector is that the top spray head (52), the hand shower (53) that are connected with described three shunt valves respectively and carrying on the back sprays (54).
CN201510923016.4A 2015-05-11 2015-12-11 A kind of energy-saving shower bath Active CN105387612B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN2015203001843 2015-05-11
CN201520300184 2015-05-11
CN201520300069 2015-05-11
CN2015203000696 2015-05-11
CN2015105054712 2015-08-17
CN201510505471.2A CN105178398A (en) 2015-08-17 2015-08-17 Energy-efficient shower apparatus
CN201510923016.4A CN105387612B (en) 2015-05-11 2015-12-11 A kind of energy-saving shower bath

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510923016.4A CN105387612B (en) 2015-05-11 2015-12-11 A kind of energy-saving shower bath

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CN105387612A true CN105387612A (en) 2016-03-09
CN105387612B CN105387612B (en) 2018-12-28

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CN201521036708.9U Active CN205261897U (en) 2015-05-11 2015-12-11 Novel energy -saving shower device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113154679A (en) * 2021-04-01 2021-07-23 湖北省地源洁能工程有限公司 Waste hot water collecting system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105387612B (en) * 2015-05-11 2018-12-28 莎丽科技股份有限公司 A kind of energy-saving shower bath

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CN2804718Y (en) * 2005-05-10 2006-08-09 张蕾 Energy saving instant heating electrothermal water heater
US20100270009A1 (en) * 2009-04-22 2010-10-28 Gomyung-Enertech Co., Ltd. Apparatus for recycling wasted heat using waste hot water
CN102121264A (en) * 2010-12-08 2011-07-13 华北电力大学(保定) Floor drain for recycling heat of bathing waste water
KR20140010322A (en) * 2012-07-16 2014-01-24 하승준 Waste water recycle system using solar pv cell and thermal electric module
CN203749285U (en) * 2014-02-19 2014-08-06 赵永军 Multi-function shower pillar
CN205261897U (en) * 2015-05-11 2016-05-25 中山市莎丽卫浴设备有限公司 Novel energy -saving shower device

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Publication number Priority date Publication date Assignee Title
CN2804718Y (en) * 2005-05-10 2006-08-09 张蕾 Energy saving instant heating electrothermal water heater
US20100270009A1 (en) * 2009-04-22 2010-10-28 Gomyung-Enertech Co., Ltd. Apparatus for recycling wasted heat using waste hot water
CN102121264A (en) * 2010-12-08 2011-07-13 华北电力大学(保定) Floor drain for recycling heat of bathing waste water
KR20140010322A (en) * 2012-07-16 2014-01-24 하승준 Waste water recycle system using solar pv cell and thermal electric module
CN203749285U (en) * 2014-02-19 2014-08-06 赵永军 Multi-function shower pillar
CN205261897U (en) * 2015-05-11 2016-05-25 中山市莎丽卫浴设备有限公司 Novel energy -saving shower device

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Publication number Priority date Publication date Assignee Title
CN113154679A (en) * 2021-04-01 2021-07-23 湖北省地源洁能工程有限公司 Waste hot water collecting system

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