CN109707130A - Integrated thermal recycles floor apparatus - Google Patents
Integrated thermal recycles floor apparatus Download PDFInfo
- Publication number
- CN109707130A CN109707130A CN201811625925.XA CN201811625925A CN109707130A CN 109707130 A CN109707130 A CN 109707130A CN 201811625925 A CN201811625925 A CN 201811625925A CN 109707130 A CN109707130 A CN 109707130A
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- China
- Prior art keywords
- floor
- exchanging chamber
- heat exchange
- top plate
- heat exchanging
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bathtubs, Showers, And Their Attachments (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of integrated thermals to recycle floor apparatus, including floor drain, drainage pipeline, water pipeline and heat exchange mechanisms, floor drain is connected to one end of drainage pipeline, water pipeline is used for the water supply of water heater to shower, heat exchange mechanisms include shell, and for shell for being arranged on shower cabinet ground in preset groove, the top plate of shell is the floor of shower cabinet, it is located at the top plate back side in shell and is disposed with heat exchanging chamber, multiple through holes is provided on top plate；One section of water pipeline is arranged in heat exchanging chamber；Floor drain is set on the bottom surface of heat exchanging chamber.Integrated thermal provided by the invention recycles floor apparatus, using the top plate of heat exchange mechanisms as the floor of shower cabinet, and direct aperture is on floor with waste water side's directly heat exchange under floor of leaking down, so greatly shorten the stroke before wastewater heat exchange, to reduce the overall dimensions of heat exchange mechanisms, to solve due to heat exchange mechanisms oversized and bring a series of problems.
Description
Technical field
The present invention relates to building environmental protection technologies, and in particular to a kind of integrated thermal recycling floor apparatus.
Background technique
In general, the waste water temperature of shower is higher than 35 degrees Celsius, in order to make full use of the thermal energy, pass through in the prior art
Residence toilet residual neat recovering system recycles the heat of the part, and basic principle is that will enter water heater by a heat exchanger
Cold water purification and the thermal wastewater of shower exchanged heat by heat exchanger, such recycling thermal energy.
Compared to other fluid heat transfers, the characteristics of residence toilet residual neat recovering system is also that difficulty is, heat exchanger needs
How the certain space to be occupied arranges that heat exchanger becomes technology pain spot, and there are mainly two types of sides for the arrangement for the prior art
Formula, one kind such as Authorization Notice No. is CN206448560U, and authorized announcement date is on August 29th, 2017, and entitled " a kind of energy conservation is whole
Body toilet " utility model patent, heat-exchanger rig is deployed directly into the upper side of closestool, the lower section of shower nozzle.Separately
One kind such as Authorization Notice No. is CN205296898U, and authorized announcement date is on June 8th, 2016, entitled " a kind of novel prefabricated whole
Body toilet " utility model patent, the shower unit of toilet is integrally padded, i.e., height is higher than and bathing unit and goes to the toilet
Unit realizes heat exchange so in the arranged beneath heat exchanger of shower unit.Currently, the toilet of most of families is not spacious,
Such as above-mentioned first method, arrange that a heat exchanger makes toilet especially take a shower again except water heater, shower spraying are first-class
Part is quite full, and since the position of heat exchanger arrangement is higher, it is also necessary to arrange that a water pump aspirates the waste water of low level
Into heat exchanger, the problems such as this further relates to anti-blocking, pipe arrangement etc.；And above-mentioned second method, on the one hand, shower unit with
The different height of unit and unit of washing one's face and rinsing one's mouth of going to the toilet makes the use of toilet both inconvenient, also more nondescript in structure, separately
On the one hand, the limited height of floor, padded shower part are made troubles to shower but also shower space is smaller.
The basic reason of heat exchanger arrangement awkward predicament in the prior art is caused to be: fluid heat transfer skill in the prior art
Art, the tube side that heat exchanger generally uses the shell side of longer stroke reciprocal with alternating bending exchange heat, this occupies heat exchanger
It is oversized.In the heat exchange of shower waste, the heat exchanger of this structure also brings another question, is exactly shower waste
In be rich in cortex, dirt, in addition environment warm after shower, so that the mass propagations such as bacterium, bring health and blockage problem.
It is in place of the deficiencies in the prior art, it is excessive that the heat exchange structure of heat exchanger causes it to take up space, if it is possible to examine
The characteristics of considering toilet shower, designs the heat exchanger small and that heat exchange area is big that takes up space, certainly will can solve above-mentioned one
The problem of series.
Summary of the invention
The object of the present invention is to provide a kind of integrated thermals to recycle floor apparatus, with the above-mentioned deficiency in solution technology
Place.
To achieve the goals above, the invention provides the following technical scheme:
A kind of integrated thermal recycling floor apparatus, including floor drain, drainage pipeline, water pipeline and heat exchange mechanisms, it is described
Floor drain is connected to one end of the drainage pipeline, and the water pipeline is used for the water supply of water heater to shower, the heat exchanger
Structure includes shell, which is characterized in that
For the shell for being arranged on shower cabinet ground in preset groove, the top plate of the shell is the shower cabinet
Floor, be located in the shell at the top plate back side and be disposed with heat exchanging chamber, multiple through holes are provided on the top plate；Institute
One section for stating water pipeline is arranged in the heat exchanging chamber；
The floor drain is set on the bottom surface of the heat exchanging chamber.
Above-mentioned integrated thermal recycles floor apparatus, and the bottom surface of the heat exchanging chamber is the rounding conical surface, and the floor drain is set to
At the minimum point of the rounding conical surface.
Above-mentioned integrated thermal recycles floor apparatus, and the top plate is clear sheet.
Above-mentioned integrated thermal recycles floor apparatus, and the floor drain is connected with drainage pipeline, is arranged on the drainage pipeline
There is vacuum pump.
Above-mentioned integrated thermal recycles floor apparatus, and the drainage pipeline includes be connected by threeway the first draining section, the
Two draining sections and third drain section, and the first draining section is connected with the floor drain, the radial dimension of the second draining section
Greater than the first draining section, it is provided with second one-way valve in the second draining section, is connected in the third draining section true
Sky pump.
Above-mentioned integrated thermal recycles floor apparatus, and the vacuum pump is can be with the pump of Double-directional rotary, first draining
Section is provided with the first check valve.
Above-mentioned integrated thermal recycles floor apparatus, slidably connects piston in the third draining section, the piston
Driving handle is located at the outside of third draining section.
Above-mentioned integrated thermal recycles floor apparatus, and the driving handle drains section in the third by supports support
Outer wall on.
Above-mentioned integrated thermal recycles floor apparatus, and it is coiled pipe that the water pipeline, which is located at the part in the heat exchanging chamber,
Or helical coil.
Above-mentioned integrated thermal recycles floor apparatus, at least partially keeps the temperature material in each siding of the heat exchanging chamber.
In the above-mentioned technical solutions, integrated thermal provided by the invention recycles floor apparatus, and the top plate of heat exchange mechanisms is made
For the floor of shower cabinet, and on floor direct aperture with waste water side's directly heat exchange under floor of leaking down, so greatly contracting
Stroke before short wastewater heat exchange, so that the overall dimensions of heat exchange mechanisms are reduced, to solve the size due to heat exchange mechanisms
Excessive and bring a series of problems.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only one recorded in the present invention
A little embodiments are also possible to obtain other drawings based on these drawings for those of ordinary skill in the art.
Fig. 1 is the structural schematic diagram that integrated thermal provided in an embodiment of the present invention recycles floor apparatus；
Fig. 2 is the partial structure diagram of water pipeline provided in an embodiment of the present invention；
Fig. 3 is the A-A cross-sectional view in Fig. 2；
Fig. 4 is the structural schematic diagram of drainage pipeline provided in an embodiment of the present invention and vacuum pump.
Description of symbols:
1, floor drain；2, drainage pipeline；2.1, the first draining section；2.2, the second draining section；2.3, third drains section；3, water is sent
Pipeline；3.1, first water section is sent；3.2, second water section is sent；4, heat exchange mechanisms；4.1, shell；4.11, top plate；5, through hole；6,
Heat exchanging chamber；6.1, overflow port；7, vacuum pump；8, second one-way valve；9, the first check valve；10, blocking component is dredged manually；11, it cleans
Mouthful；12, support frame；12.1, support rail；12.2, vertical supporting rod；13, strainer；14, threeway.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, below in conjunction with attached drawing to this hair
It is bright to be further detailed.
As shown in Figs 1-4, a kind of integrated thermal provided in an embodiment of the present invention recycles floor apparatus, including floor drain 1, draining
Pipeline 2, water pipeline 3 and heat exchange mechanisms 4, the floor drain 1 are connected to one end of the drainage pipeline 2, the water pipeline 3
For the water supply of water heater to shower, the heat exchange mechanisms 4 include shell 4.1, and the shell 4.1 is for being arranged into shower cabinet
On ground in preset groove, the top plate 4.11 of the shell 4.1 is the floor of the shower cabinet, is located in the shell 4.1
It is disposed with heat exchanging chamber 6 at 4.11 back side of top plate, multiple through holes 5 are provided on the top plate 4.11；The water pipeline 3
One section be arranged in the heat exchanging chamber 6；The floor drain 1 is set on the bottom surface of the heat exchanging chamber 6.
Specifically, integrated thermal recycling floor apparatus is arranged in toilet, be used for the waste heat of waste water after shower into
Row recycling, the heat of recycling is for heating the water inlet of water heater.Integrated thermal recycling floor apparatus includes floor drain 1, row
Waterpipe 2, water pipeline 3 and heat exchange mechanisms 4, reserve on the ground for the part that takes a shower it is fluted, as being arranged on mattess
There is rectangle groove body, the shell 4.1 of heat exchange mechanisms 4 is consistent with the shape of groove, is placed in the groove, heat exchange mechanisms 4
Top plate 4.11 be the floor of part of taking a shower, shower personnel stand on the top plate 4.11 when shower, while waste water is also fallen on
On the top plate 4.11, heat exchange mechanisms 4 are internally provided with heat exchanging chamber 6, wherein top plate 4.11 is the siding of heat exchanging chamber 6, top plate
Many through holes 5 are offered on 4.11.Water pipeline 3 be used for the water heater of shower provide cold water, one section of water pipeline 3
It is arranged in heat exchanging chamber 6 for exchanging heat, in addition unlike the prior art, floor drain 1 is set on the bottom wall of heat exchanging chamber 6, row
Waterpipe 2 is connected on floor drain 1.
Integrated thermal provided in this embodiment recycles floor apparatus, in use, the spent hot water after shower falls on top plate 4.11
On, it is fallen in heat exchanging chamber 6 by the through hole 5 on top plate 4.11, is changed in heat exchanging chamber 6 with the water pipeline of water heater 3
Cold water of the waste heat of waste water to water pipeline 3 is so carried out preliminary heating to realize heat recovery by heat.
In the present embodiment, it is preferred that the bottom surface of heat exchanging chamber 6 is the rounding conical surface, and the floor drain 1 is set to the rounding conical surface
Minimum point at so that last waste water is all drained.
Integrated thermal provided in an embodiment of the present invention recycles floor apparatus, by the top plate 4.11 of heat exchange mechanisms 4 as shower
Between floor, and on floor direct aperture with leak down waste water under floor side directly heat exchange, so greatly shorten useless
Stroke before water heat exchange, to reduce the overall dimensions of heat exchange mechanisms 4, to solve oversized due to heat exchange mechanisms 4
And bring a series of problems.
In another embodiment provided by the invention, further, drainage pipeline 2 includes different two of radial dimension
Point, it is larger with the radial dimension of the farther away part of floor drain 1, wherein the radial dimension for the part being connected directly with floor drain 1 is smaller,
It is arranged be only shower pipeline radial dimension of 2/3rds, half even hereinafter, be arranged such effect be, take a shower
When waste water can not be drained completely by floor drain 1 and drainage pipeline 2 so that in heat exchanging chamber 6 gradually ponding until flood water pipeline
3, it realizes the raising of heat exchange efficiency, while ponding overflows top plate 4.11 in order to prevent, is arranged one or more at the top of heat exchanging chamber 6
A overflow port 6.1, radial dimension larger portion on 6.1 communicated drainage pipeline 2 of overflow port, realizes the normal discharge of waste water.
So whole to make, shower waste is split as two parts in heat exchanging chamber 6 and is finally pooled in drainage pipeline 2, mesh
Be ponding in heat exchanging chamber 6 to promote the heat exchange efficiency to water pipeline 3.
In further embodiment provided by the invention, further, as Figure 2-3, water pipeline 3 includes the to be connected
One send water section 3.1 and second to send water section 3.2, wherein second send water section 3.2 to be arranged in heat exchanging chamber 6, and first send water section 3.1 can
To refer to various pipes in the prior art, such as round tube, square tube, second send the radial dimension of water section 3.2 to send less than first
Water section 3.1, for example its half, and it is preferably flat, i.e., first send water section 3.1 to pass through connector such as threeway 14, four-way
Or transverse tube is welded to connect multiple second and send water section 3.2, the effect of such setting is, on the one hand, thinner and flat second
Water section 3.2 is sent to be conducive to increase heat exchange area, thus improving heat exchanging efficiency, on the other hand, flat second send water section 3.2 water
The height space that placing flat occupies is smaller, can reduce the height of heat exchanging chamber 6, and then reduce the volume of heat exchange mechanisms 4, be convenient for it
It is arranged into the floor of shower part.Further more, the heat exchange structure of for example snakelike shape of alternating bending compared to the prior art, also by this
The mode of sample shortens stroke of the water pipeline 3 in heat exchanging chamber 6, reduces the volume of heat exchanging chamber 6.
In further embodiment provided by the invention, further, support frame 12, support frame 12 are provided in heat exchanging chamber 6
The bottom wall of heat exchanging chamber 6 is supported in perhaps on side wall such as metallic support or plastic stent, water pipeline 3 is in heat exchanging chamber 6 by propping up
Support 12 is supported, promoted water pipeline 3 stability, meanwhile, top plate 4.11 can be overlapped on the support frame 12, also by
Support frame 12 is supported, and support may include the support rail 12.1 and vertical supporting rod 12.2 of arranged crosswise, support rail
12.1 support water pipelines 3,12.2 roof supporting 4.11 of vertical supporting rod, when another benefit of such setting, when needing to exchange
When being cleared up inside hot chamber 6, top plate 4.11 has directly been taken by through hole 5.
In the present embodiment, it is preferred that the top plate 4.11 is clear sheet, such as armorplate glass or transparent plastic sheet,
Observation its role is to which the inside of heat exchanging chamber 6 can be observed directly, when being easy to use and safeguarding.
In further embodiment provided by the invention, further, as shown in figure 4, the floor drain 1 is connected with drainage pipeline
2, vacuum pump 7 is provided on the drainage pipeline 2, and the effect of vacuum pump 7 is that the dirts such as the hair in heat exchanging chamber 6 are taken out
It inhales, so solves dirt in the prior art and be easy the phenomenon that accumulating and blocking drainage pipeline 2.Preferably, drainage pipeline 2 includes logical
Cross threeway 14 be connected first draining section 2.1, second drain section 2.2 and third draining section 2.3, it is described first draining section 2.1 with
The floor drain 1 is connected, and the radial dimension of the second draining section 2.2 is greater than the first draining section 2.1, the second draining section
It is provided with second one-way valve 8 on 2.2, is connected with vacuum pump 7 in the third draining section 2.3.The effect of such setting is,
After bathing, active control being detected by sensor or manually controls starting vacuum pump 7, the suction of vacuum pump 7 generates vacuum,
Due to the restriction effect of second one-way valve 8, the second draining section 2.2 will not air inlet, work of the first draining section 2.1 in vacuum force
It is sucked with the lower sewage by heat exchanging chamber 6 and dirt moment, the effect at threeway 14 due to gravity falls on the second draining section 2.2
In, it is discharged in the second draining section 2.2 by second one-way valve 8, realizes the discharge of sewage and dirt.
Further, the radial dimension of the second draining section 2.2 be radial dimension of twice of the first draining section 2.1 with
On, the effect of such setting is, the sewage dirt of one side heat exchanger needs all to be received by the second draining section 2.2, otherwise
It is easily inhaled in vacuum pump 7, on the other hand, the radial dimension of increasing reduces the probability of blocking, prevents dirt from blocking second row
Water section 2.2.The moment high speed suction of vacuum suction can also solve the sticking problem in heat exchanging chamber 6 such as hair, dirt.
It is more careful, it can also be drained in third and a strainer 13 is set in section 2.3, prevent the first draining section 2.1
It is drawn onto vacuum pump 7 after the lightweight object of adhesion section hair class is dry on tube wall in the moment of suction starting.
In the present embodiment, it is preferred that third draining section 2.3 and vacuum pump 7 etc. can be set farther out from shower part
Position, if setting is near Wash Units, in general, each toilet have an enclosed compartment for arrange go downstairs through upper
Vacuum pump 7 equal can be arranged in the enclosed compartment for the main blow-off line of layer.
Further, vacuum pump 7 is connected on the side wall of third draining section 2.3, and third drains the top setting of section 2.3
One is dredged blocking component 10 manually, and thin blocking component 10 includes a body of rod manually, and one end of the body of rod is provided with piston, and piston sliding is close
Envelope is connected on the inner wall of third draining section 2.3, and the other end of the body of rod is provided with driving handle and is located at third draining section 2.3
Outside, i.e., by driving handle can push piston third drain section 2.3 in move back and forth, meanwhile, first draining section 2.1 with
The junction of threeway 14 is provided with the first check valve 9, and the purpose of such setting is, when vacuum pump 7 aspirates, in vacuum adsorption force
Under conditions of, the first check valve 9 opening does not influence normal sewage suction, and crucial is to be plugged when the second draining section 2.2
When, by driving handle driving, thin blocking component 10, the first draining section 2.1 of the first check valve 9 closing at this time dredge stifled group manually manually
Part 10 goes discharge to block, manually goes to eliminate stopping state to pressure in the second draining section 2.2 by high pressure.If still can not
Discharge blocking, can be taken off dredging blocking component 10 manually, and other method removals block (due to heat exchanging chamber 6 in the prior art for use
Reason its similar with the prior art soft rigid spring removal blocking can not be filled in by floor drain 1).
Above-mentioned integrated thermal recycles floor apparatus, at least partially keeps the temperature material in each siding of the heat exchanging chamber 6.
In further embodiment provided by the invention, further, the top sidewall in heat exchanging chamber 6 is provided with loop pipe,
Multiple Butterworth Hatch 11 are provided on loop pipe, after bathing, vacuum pump 7 aspirate before, by Butterworth Hatch 11 spray water flow with
The inner wall for cleaning water pipeline 3 and heat exchanging chamber 6, is aspirated after cleaning by vacuum pump 7, so that heat exchanging chamber 6 can be with
That cleans is extremely clean.
It is above that certain exemplary embodiments of the invention are only described by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain without departing from the spirit and scope of the present invention can be with a variety of different modes to institute
The embodiment of description is modified.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as to the present invention
The limitation of claims.
Claims (7)
1. a kind of integrated thermal recycles floor apparatus, including floor drain, drainage pipeline, water pipeline and heat exchange mechanisms, describedly
Leakage is connected to one end of the drainage pipeline, and the water pipeline is used for the water supply of water heater to shower, the heat exchange mechanisms
Including shell, which is characterized in that
For the shell for being arranged on shower cabinet ground in preset groove, the top plate of the shell is the ground of the shower cabinet
Plate, the shell is interior to be disposed with heat exchanging chamber at the top plate back side, and multiple through holes are provided on the top plate, described to send
One section of waterpipe is arranged in the heat exchanging chamber；
The floor drain is set on the bottom surface of the heat exchanging chamber.
2. integrated thermal according to claim 1 recycles floor apparatus, which is characterized in that the bottom surface of the heat exchanging chamber is to fall
Circular conical surface, the floor drain are set at the minimum point of the rounding conical surface.
3. integrated thermal according to claim 1 recycles floor apparatus, which is characterized in that the top plate is clear sheet.
4. integrated thermal according to claim 1 recycles floor apparatus, which is characterized in that be provided on the drainage pipeline
Vacuum pump.
5. integrated thermal according to claim 1 recycles floor apparatus, which is characterized in that the water pipeline is located at described
Part in heat exchanging chamber is coiled pipe or helical coil.
6. integrated thermal according to claim 1 recycles floor apparatus, which is characterized in that in each siding of the heat exchanging chamber
At least partially keep the temperature material.
7. integrated thermal according to claim 1 recycles floor apparatus, which is characterized in that the top plate is overlapped in the shell
The top of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625925.XA CN109707130B (en) | 2018-12-28 | 2018-12-28 | Integrated heat recovery floor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625925.XA CN109707130B (en) | 2018-12-28 | 2018-12-28 | Integrated heat recovery floor device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109707130A true CN109707130A (en) | 2019-05-03 |
| CN109707130B CN109707130B (en) | 2020-02-21 |
Family
ID=66258164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811625925.XA Active CN109707130B (en) | 2018-12-28 | 2018-12-28 | Integrated heat recovery floor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109707130B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707182A (en) * | 2018-12-28 | 2019-05-03 | 中冶置业集团有限公司 | Residence toilet residual neat recovering system |
| CN113338670A (en) * | 2021-06-11 | 2021-09-03 | 福建省奋发建设工程有限公司 | Dormitory building structure |
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| CN201302396Y (en) * | 2008-09-19 | 2009-09-02 | 长沙新竹数码科技有限公司 | Waste water waste-heat recovery device |
| 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 |
| CN102518184A (en) * | 2012-01-12 | 2012-06-27 | 重庆大学 | Bathing hot water comprehensive recycling device |
| CN104074261A (en) * | 2014-07-19 | 2014-10-01 | 邬汉镇 | Shower water heat exchanging floor drainage |
| CA2950268A1 (en) * | 2014-05-27 | 2015-12-03 | Recalor Ab | Floor drain |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2578642A1 (en) * | 2007-01-30 | 2008-07-30 | Peter J. Beaini | Grey water heat recovery system |
| CN201141737Y (en) * | 2007-12-05 | 2008-10-29 | 刘维孔 | Energy-saving heat exchanger |
| CN201302396Y (en) * | 2008-09-19 | 2009-09-02 | 长沙新竹数码科技有限公司 | Waste water waste-heat recovery device |
| 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 |
| CN102518184A (en) * | 2012-01-12 | 2012-06-27 | 重庆大学 | Bathing hot water comprehensive recycling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707182A (en) * | 2018-12-28 | 2019-05-03 | 中冶置业集团有限公司 | Residence toilet residual neat recovering system |
| CN113338670A (en) * | 2021-06-11 | 2021-09-03 | 福建省奋发建设工程有限公司 | Dormitory building structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109707130B (en) | 2020-02-21 |
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