CN105698253A - Low-temperature hot water concentric-square-shaped coil radiant heating system for heatable brick bed - Google Patents

Low-temperature hot water concentric-square-shaped coil radiant heating system for heatable brick bed Download PDF

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Publication number
CN105698253A
CN105698253A CN201610117728.1A CN201610117728A CN105698253A CN 105698253 A CN105698253 A CN 105698253A CN 201610117728 A CN201610117728 A CN 201610117728A CN 105698253 A CN105698253 A CN 105698253A
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CN
China
Prior art keywords
brick bed
heatable brick
shaped
coil
water
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Granted
Application number
CN201610117728.1A
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Chinese (zh)
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CN105698253B (en
Inventor
刘志坚
盛家豪
李晓静
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North China Electric Power University
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North China Electric Power University
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Priority to CN201610117728.1A priority Critical patent/CN105698253B/en
Publication of CN105698253A publication Critical patent/CN105698253A/en
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Publication of CN105698253B publication Critical patent/CN105698253B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D15/00—Other domestic- or space-heating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Structures (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention discloses a low-temperature hot water concentric-square-shaped coil radiant heating system for a heatable brick bed. The system comprises a concentric-square-shaped radiant coil, a heatable brick bed body, a solar water heater, a circulating electric water heater and a pressure gage, wherein the concentric-square-shaped radiant coil is arranged in the heatable brick bed body; a solar water heater water outlet communicates with an electric water heater water inlet; an electric water heater water outlet is connected with a water inlet of the concentric-square-shaped radiant coil; a water outlet of the concentric-square-shaped radiant coil is connected with a solar water heater water inlet and the electric water heater water inlet through a tee; and the pressure gage and a flow velocity valve are arranged between the electric water heater water outlet and the water inlet of the concentric-square-shaped radiant coil. According to the system, the solar water heater and the electric water heater are mutually combined so as to improve the utilization rate of energy sources; the concentric-square-shaped radiant coil is arranged so as to improve the temperature uniformity of the heatable brick bed; the system adopts a detachable structure, and the indoor heating effect can be improved after a heat dissipation pad is detached; and an internal through groove is arranged so as to facilitate internal maintenance and mounting of the heatable brick bed body, increase convenience and effectively reduce energy consumption.

Description

A kind of back-shaped coil kang radiation heating system of low-temperature water heating
Technical field
The present invention relates to heating technology field, be specially a kind of back-shaped coil kang radiation heating system of low-temperature water heating。
Background technology
As radiation heating system common in room, this north of heated kang, its homogeneous temperature, based on low-temp radiating heat radiation, meet human body environment's requirement, comfortableness is higher, but current this heating system can be only applied to rural area, the requirement of cities and towns or city can not be realized, and simultaneously, widely known along with solar water, but solar water heater is limited only to provide bathing hot water at present, therefore, how by Application of Solar Energy in panel type heating system, study the new product-Solar Enercy Fission Geyser of combined solar thermal water further, it is made to combine with floor panel heating, for building and heating, development and popularization for this panel type heating system have extremely important effect。
Summary of the invention
It is an object of the invention to provide a kind of back-shaped coil kang radiation heating system of low-temperature water heating, with the problem solving to propose in above-mentioned background technology。
For achieving the above object, the present invention provides following technical scheme: a kind of back-shaped coil kang radiation heating system of low-temperature water heating, it includes back-shaped radiant coil, a heatable brick bed body, solar water heater, recycling electric hydrophone and Pressure gauge, it is characterized in that, described back-shaped radiant coil is arranged in described a heatable brick bed body, described solar water heater is provided with solar water heater outlet and solar water heater inlet mouth, described recycling electric hydrophone is provided with electric heater outlet and electric heater water inlet, described solar water heater outlet connects with described electric water heater inlet mouth, described electric heater outlet connects the water inlet of described back-shaped radiant coil, the outlet of described back-shaped radiant coil connects described solar water heater inlet mouth and electric heater water inlet by threeway, it is provided with Pressure gauge and flow velocity valve between the water inlet of described electric heater outlet and described back-shaped radiant coil。
Further, as preferably, it is disposed with temperature sensor one and electromagnetic valve one between outlet and the described electric heater water inlet of described back-shaped radiant coil, it is provided with temperature sensor two between described solar water heater outlet and described electric heater water inlet, it is provided with temperature sensor three between described electric heater outlet and described Pressure gauge, it is provided with electromagnetic valve three between the water inlet of described Pressure gauge and described back-shaped radiant coil, it is provided with electromagnetic valve two between outlet and the described solar water heater inlet mouth of described back-shaped radiant coil, described temperature sensor one, temperature sensor two, temperature sensor three, electromagnetic valve one, electromagnetic valve two and electromagnetic valve three are all connected with controller, controller is according to difference between temperature sensor three and described temperature sensor two, between temperature sensor three and described temperature sensor two, difference controls the heating power of recycling electric hydrophone, controller is by controlling electromagnetic valve one respectively, electromagnetic valve two and electromagnetic valve three control whether recirculated water flows through described solar water heater；Described a heatable brick bed body includes a heatable brick bed bracing frame, inner support pad, interior groove, porous ceramics heat transfer layer and cooling pad, wherein, described a heatable brick bed bracing frame is U-shaped bracing frame, it is provided with inner support pad in described a heatable brick bed bracing frame, it is provided with interior groove between lower surface and the upper surface of described a heatable brick bed bracing frame of described inner support pad, the shape of cross section of described interior groove is concave character type, the upper surface of described inner support pad is provided with back-shaped radiant coil, described back-shaped radiant coil be provided above porous ceramics heat transfer layer, described porous ceramics heat transfer layer overlaid with cooling pad。
Further, as preferably, described back-shaped radiant coil being provided with into water snap joint and water outlet snap joint, wherein, described water inlet snap joint is arranged through described a heatable brick bed bracing frame, and described water outlet snap joint is arranged through described inner support pad。
Further, as preferably, described a heatable brick bed body is rectangular structure。
Further, as preferably, the height of described interior groove both sides is at least 30cm。
Further, as preferably, the water inlet of described back-shaped radiant coil is arranged on the outer surface of described a heatable brick bed body, and the outlet of described back-shaped radiant coil is arranged on the center of described a heatable brick bed body。
Further, as preferably, the thickness of described porous ceramics heat transfer layer is 20-30mm。
Further, as preferably, described cooling pad is hierarchic structure, and the top of cooling pad is large end face section, the bottom of cooling pad is divided into small end face section, and the flush with outer surface of described large end face section and described a heatable brick bed bracing frame is arranged, and described small end face section stretches into and is equipped with in the inner surface of described a heatable brick bed bracing frame。
Further, as preferably, described water inlet snap joint and water outlet snap joint are copper sleeve。
Compared with prior art, the invention has the beneficial effects as follows:
The present invention adopts solar energy and electric heater to be combined with each other, improve the utilization rate of the energy, and, it is also provided with back-shaped radiant coil, improve the temperature homogeneity of hot a heatable brick bed, simultaneously, the present invention adopts demountable structure, after unloading cooling pad, the heating effect of indoor can be improved, simultaneously, it is provided with interior groove, it is easy to the maintenance in portion in a heatable brick bed body and installation, improve convenience, in addition, it is provided with multiple sensor and electromagnetic valve, can effective situation according to solar energy, determine the heating power of electric heater, effectively reduce energy consumption, ensureing on the basis of heating effect, improve solar energy utilization ratio, improve the heating effect of a heatable brick bed。
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is a heatable brick bed body sectional structure chart of the present invention。
In figure: 1, back-shaped radiant coil, 2, a heatable brick bed body, 3, solar water heater, 4, recycling electric hydrophone, 5, solar water heater outlet, 6, solar water heater inlet mouth, 7, electric heater outlet, 8, electric heater water inlet, 9, temperature sensing one, 10, electromagnetic valve one, 11, temperature sensor two, 12, electromagnetic valve two, 13, temperature sensor three, 14, electromagnetic valve three, 15, Pressure gauge, 16, a heatable brick bed bracing frame, 17, inner support pad, 18, interior groove, 19, porous ceramics heat transfer layer, 20, cooling pad, 21, water inlet snap joint, 22, water outlet snap joint。
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention。
Refer to Fig. 1-2, the present invention provides a kind of technical scheme: a kind of back-shaped coil kang radiation heating system of low-temperature water heating, it includes back-shaped radiant coil 1, a heatable brick bed body 2, solar water heater 3, recycling electric hydrophone 4 and Pressure gauge 15, it is characterized in that, described back-shaped radiant coil 1 is arranged in described a heatable brick bed body 2, described solar water heater 3 is provided with solar water heater outlet 5 and solar water heater inlet mouth 6, described recycling electric hydrophone 4 is provided with electric heater outlet 7 and electric heater water inlet 8, described solar water heater outlet 5 connects with described electric water heater inlet mouth 8, described electric heater outlet 7 connects the water inlet of described back-shaped radiant coil, the outlet of described back-shaped radiant coil connects described solar water heater inlet mouth and electric heater water inlet by threeway, it is provided with Pressure gauge 15 and flow velocity valve between the water inlet of described electric heater outlet and described back-shaped radiant coil。
In the present embodiment, it is disposed with temperature sensor 1 and electromagnetic valve 1 between outlet and the described electric heater water inlet 8 of described back-shaped radiant coil 1, it is provided with temperature sensor 2 11 between described solar water heater outlet 5 and described electric heater water inlet 8, it is provided with temperature sensor 3 13 between described electric heater outlet 7 and described Pressure gauge 15, it is provided with electromagnetic valve 3 14 between the water inlet of described Pressure gauge 15 and described back-shaped radiant coil 1, it is provided with electromagnetic valve 2 12 between outlet and the described solar water heater inlet mouth 6 of described back-shaped radiant coil, described temperature sensor one, temperature sensor two, temperature sensor three, electromagnetic valve one, electromagnetic valve two and electromagnetic valve three are all connected with controller, controller is according to difference between temperature sensor three and described temperature sensor two, between temperature sensor three and described temperature sensor two, difference controls the heating power of recycling electric hydrophone, controller is by controlling electromagnetic valve one respectively, electromagnetic valve two and electromagnetic valve three control whether recirculated water flows through described solar water heater；Described a heatable brick bed body 2 includes a heatable brick bed bracing frame 16, inner support pad 17, interior groove 18, porous ceramics heat transfer layer 19 and cooling pad 20, wherein, described a heatable brick bed bracing frame 16 is U-shaped bracing frame, it is provided with inner support pad 17 in described a heatable brick bed bracing frame 16, it is provided with interior groove 18 between lower surface and the upper surface of described a heatable brick bed bracing frame 16 of described inner support pad 17, the shape of cross section of described interior groove 18 is concave character type, so, it is easy to a heatable brick bed body internal structure is carried out I&M, the upper surface of described inner support pad 17 is provided with back-shaped radiant coil 1, described back-shaped radiant coil 1 be provided above porous ceramics heat transfer layer 19, described porous ceramics heat transfer layer 19 overlaid with cooling pad 20。
Additionally, be provided with in described back-shaped radiant coil into water snap joint 21 and water outlet snap joint 22, wherein, described water inlet snap joint 21 is arranged through described a heatable brick bed bracing frame 16, and described water outlet snap joint 22 is arranged through described inner support pad 17。
In the present embodiment, described a heatable brick bed body is rectangular structure。The height of described interior groove both sides is at least 30cm。The water inlet of described back-shaped radiant coil is arranged on the outer surface of described a heatable brick bed body, and the outlet of described back-shaped radiant coil is arranged on the center of described a heatable brick bed body。
In order to improve heat transfer efficiency, the thickness of described porous ceramics heat transfer layer is 20-30mm。For the ease of cooling pad being positioned and installing/dismounting, described cooling pad 20 is hierarchic structure, and the top of cooling pad 20 is large end face section, the bottom of cooling pad 20 is divided into small end face section, the flush with outer surface of described large end face section and described a heatable brick bed bracing frame is arranged, and described small end face section stretches into and is equipped with in the inner surface of described a heatable brick bed bracing frame。Described water inlet snap joint 21 and water outlet snap joint 22 are copper sleeve。
The present invention adopts solar energy and electric heater to be combined with each other, improve the utilization rate of the energy, and, it is also provided with back-shaped radiant coil, improve the temperature homogeneity of hot a heatable brick bed, simultaneously, the present invention adopts demountable structure, after unloading cooling pad, the heating effect of indoor can be improved, simultaneously, it is provided with interior groove, it is easy to the maintenance in portion in a heatable brick bed body and installation, improve convenience, in addition, it is provided with multiple sensor and electromagnetic valve, can effective situation according to solar energy, determine the heating power of electric heater, effectively reduce energy consumption, ensureing on the basis of heating effect, improve solar energy utilization ratio, improve the heating effect of a heatable brick bed。
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the present invention be defined by the appended。

Claims (9)

1. the back-shaped coil kang radiation heating system of low-temperature water heating, it includes back-shaped radiant coil, a heatable brick bed body, solar water heater, recycling electric hydrophone and Pressure gauge, it is characterized in that, described back-shaped radiant coil is arranged in described a heatable brick bed body, described solar water heater is provided with solar water heater outlet and solar water heater inlet mouth, described recycling electric hydrophone is provided with electric heater outlet and electric heater water inlet, described solar water heater outlet connects with described electric water heater inlet mouth, described electric heater outlet connects the water inlet of described back-shaped radiant coil, the outlet of described back-shaped radiant coil connects described solar water heater inlet mouth and electric heater water inlet by threeway, it is provided with Pressure gauge and flow velocity valve between the water inlet of described electric heater outlet and described back-shaped radiant coil。
2. a kind of back-shaped coil kang radiation heating system of low-temperature water heating according to claim 1, it is characterized in that: between outlet and the described electric heater water inlet of described back-shaped radiant coil, be disposed with temperature sensor one and electromagnetic valve one, it is provided with temperature sensor two between described solar water heater outlet and described electric heater water inlet, it is provided with temperature sensor three between described electric heater outlet and described Pressure gauge, it is provided with electromagnetic valve three between the water inlet of described Pressure gauge and described back-shaped radiant coil, it is provided with electromagnetic valve two between outlet and the described solar water heater inlet mouth of described back-shaped radiant coil, described temperature sensor one, temperature sensor two, temperature sensor three, electromagnetic valve one, electromagnetic valve two and electromagnetic valve three are all connected with controller, controller is according to difference between temperature sensor three and described temperature sensor two, between temperature sensor three and described temperature sensor two, difference controls the heating power of recycling electric hydrophone, controller is by controlling electromagnetic valve one respectively, electromagnetic valve two and electromagnetic valve three control whether recirculated water flows through described solar water heater；Described a heatable brick bed body includes a heatable brick bed bracing frame, inner support pad, interior groove, porous ceramics heat transfer layer and cooling pad, wherein, described a heatable brick bed bracing frame is U-shaped bracing frame, it is provided with inner support pad in described a heatable brick bed bracing frame, it is provided with interior groove between lower surface and the upper surface of described a heatable brick bed bracing frame of described inner support pad, the shape of cross section of described interior groove is concave character type, the upper surface of described inner support pad is provided with back-shaped radiant coil, described back-shaped radiant coil be provided above porous ceramics heat transfer layer, described porous ceramics heat transfer layer overlaid with cooling pad。
3. a kind of back-shaped coil kang radiation heating system of low-temperature water heating according to claim 2, it is characterized in that: described back-shaped radiant coil is provided with into water snap joint and water outlet snap joint, wherein, described water inlet snap joint is arranged through described a heatable brick bed bracing frame, and described water outlet snap joint is arranged through described inner support pad。
4. a kind of back-shaped coil kang radiation heating system of low-temperature water heating according to claim 1, it is characterised in that: described a heatable brick bed body is rectangular structure。
5. a kind of back-shaped coil kang radiation heating system of low-temperature water heating according to claim 2, it is characterised in that: the height of described interior groove both sides is at least 30cm。
6. a kind of back-shaped coil kang radiation heating system of low-temperature water heating according to claim 2, it is characterized in that: the water inlet of described back-shaped radiant coil is arranged on the outer surface of described a heatable brick bed body, and the outlet of described back-shaped radiant coil is arranged on the center of described a heatable brick bed body。
7. a kind of back-shaped coil kang radiation heating system of low-temperature water heating according to claim 2, it is characterised in that: the thickness of described porous ceramics heat transfer layer is 20-30mm。
8. a kind of back-shaped coil kang radiation heating system of low-temperature water heating according to claim 2, it is characterized in that: described cooling pad is hierarchic structure, and the top of cooling pad is large end face section, the bottom of cooling pad is divided into small end face section, the flush with outer surface of described large end face section and described a heatable brick bed bracing frame is arranged, and described small end face section stretches into and is equipped with in the inner surface of described a heatable brick bed bracing frame。
9. a kind of back-shaped coil kang radiation heating system of low-temperature water heating according to claim 3, it is characterised in that: described water inlet snap joint and water outlet snap joint are copper sleeve。
CN201610117728.1A 2016-03-01 2016-03-01 A kind of back-shaped coil kang radiation heating system of low-temperature water heating Active CN105698253B (en)

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Application Number Priority Date Filing Date Title
CN201610117728.1A CN105698253B (en) 2016-03-01 2016-03-01 A kind of back-shaped coil kang radiation heating system of low-temperature water heating

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CN201610117728.1A CN105698253B (en) 2016-03-01 2016-03-01 A kind of back-shaped coil kang radiation heating system of low-temperature water heating

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CN105698253B CN105698253B (en) 2018-09-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109882912A (en) * 2019-02-22 2019-06-14 唐海燕 Rural area heat supply modernization system and transformation heatable brick bed structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29914153U1 (en) * 1999-08-12 1999-11-25 Jurenda Rolf System for heating commercially available water beds and seating, using existing central, storey, district or solar heating
JP2001231661A (en) * 2000-02-23 2001-08-28 Osaka Gas Co Ltd Hot-water heating device for bed
CN201059688Y (en) * 2007-05-15 2008-05-14 李少杰 Automatic control device of solar energy and auxiliary heater complementation combination heating system
CN201844711U (en) * 2010-09-23 2011-05-25 南效生 Kang type radiator
CN201920225U (en) * 2010-12-16 2011-08-10 渠海忠 Auto-temperature controlled water heating mattress
CN203619140U (en) * 2013-12-13 2014-06-04 王余北 Water heating mattress

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29914153U1 (en) * 1999-08-12 1999-11-25 Jurenda Rolf System for heating commercially available water beds and seating, using existing central, storey, district or solar heating
JP2001231661A (en) * 2000-02-23 2001-08-28 Osaka Gas Co Ltd Hot-water heating device for bed
CN201059688Y (en) * 2007-05-15 2008-05-14 李少杰 Automatic control device of solar energy and auxiliary heater complementation combination heating system
CN201844711U (en) * 2010-09-23 2011-05-25 南效生 Kang type radiator
CN201920225U (en) * 2010-12-16 2011-08-10 渠海忠 Auto-temperature controlled water heating mattress
CN203619140U (en) * 2013-12-13 2014-06-04 王余北 Water heating mattress

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109882912A (en) * 2019-02-22 2019-06-14 唐海燕 Rural area heat supply modernization system and transformation heatable brick bed structure

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