CN203024308U - Heat supply and venting air conditioning system suitable for rural residences - Google Patents

Heat supply and venting air conditioning system suitable for rural residences Download PDF

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Publication number
CN203024308U
CN203024308U CN2012206722559U CN201220672255U CN203024308U CN 203024308 U CN203024308 U CN 203024308U CN 2012206722559 U CN2012206722559 U CN 2012206722559U CN 201220672255 U CN201220672255 U CN 201220672255U CN 203024308 U CN203024308 U CN 203024308U
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China
Prior art keywords
water
room
pipe
air
boiler
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Expired - Fee Related
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CN2012206722559U
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Chinese (zh)
Inventor
黄翔
孙哲
刘佳莉
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Xian Polytechnic University
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Xian Polytechnic University
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Priority to CN2012206722559U priority Critical patent/CN203024308U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/272Solar heating or cooling
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal

Abstract

The utility model discloses a heat supply and venting air conditioning system suitable for rural residences. The system comprises radiation tail ends laid on the ground in a room and capillary tubes on walls in the room. A solar heat collecting device is arranged on a roof of the room, an evaporation water cooling machine and an evaporation air cooling machine are arranged outside the room, the evaporation water cooling machine is connected with a water segregator A through a water outlet pipe G1, the evaporation water cooling machine is connected with a water collector A through a water inlet pipe G2, the water collector A is communicated with the radiation tail ends, and the evaporation air cooling machine is communicated with the room through an air duct. The outside of the room is further provided with a biogas digester, a coal-fired or gas-fired boiler and a biogas boiler are arranged beside the biogas digester, and the coal-fired or gas-fired boiler, the biogas boiler, the biogas digester and the solar heat collecting device are connected through a pipe network. The heat supply and venting air conditioning system is combined with characteristics of a rural area, makes full use of three kinds of renewable energy sources serving as cooling and heating sources according to climate characteristics in different seasons, and improves the living environment of residents in the rural area.

Description

A kind of heating-ventilation-air-conditioning system that is applicable to grange
Technical field
The utility model belongs to the building energy conservation equipment technical field, is specifically related to a kind of heating-ventilation-air-conditioning system that is applicable to grange.
Background technology
China is large agricultural country, and national life over half is in rural area.Along with going deep into of reform and opening-up, the living condition in China rural area has obtained obvious improvement, and the people are also more and more higher to the pursuit of life comfort level and quality.But at present China's grange building all too high, the environmental pollution of the unit's of existence building energy consumption seriously reach the characteristics such as extensive.Rural areas in our country still mostly adopts the modes such as native heating installation, native stove, adobe kang to warm oneself in the winter time, and these heating modes generally adopt the modes such as burning straw, firewood, and these all can the heavy damage environment; And, in small part family employing in summer splitting air conditioner refrigeration, poor due to architectural exterior-protecting construction insulation own, space is large, has caused the significant wastage of the energy.
Evaporation cooling technique, as a kind of environmental protection, efficient, green low-carbon and economic air-conditioning technical, mainly utilizes dry air to carry out air conditioning to building, by approval and application more and more; Biogas, as clean reproducible energy, can be used for cooking, illumination and heating, in rural area, is promoted and uses and obtained good result; Solar energy is also widelyd popularize and is used at present as novel renewable energy.These three kinds of energy are all regenerative resources, all have clean, environmental protection, economic characteristics, but all there is instable shortcoming in the three.Three kinds of energy are organically combined, make its Cooling and Heat Source as heating, ventilation and air conditioning system, and be equipped with that comfortableness is good, sanitary condition is good, low radiation tail end forms to the coolant-temperature gage requirement system, can realize environmental protection, efficient, economic, healthy grange system.
Summary of the invention
The purpose of this utility model is to provide a kind of heating-ventilation-air-conditioning system that is applicable to grange, characteristics in conjunction with rural area, according to the climate characteristic of Various Seasonal, take full advantage of three kinds of regenerative resources as Cooling and Heat Source, improved urban residents' living environment.
The technical scheme that the utility model adopts is, a kind of heating-ventilation-air-conditioning system that is applicable to grange, include and be layed in the capillary on ground radiation tail end and room interior walls in room, be provided with solar energy heat collector on the roof in room, room is outside equipped with evaporative cooling cooling-water machine and vaporizing type air conditioner, and the evaporative cooling cooling-water machine is by outlet pipe G 1with water knockout drum, A is connected, and the evaporative cooling cooling-water machine is by oral siphon G 2with water collector, A is connected, water collector A is communicated with radiation tail end, vaporizing type air conditioner is communicated with in room by airduct, the outside in room also is provided with methane-generating pit, other fire coal/gas fired-boiler and the methane boiler of being provided with of methane-generating pit, be connected by pipe network between fire coal/gas fired-boiler, methane boiler, methane-generating pit and solar energy heat collector.
Characteristics of the present utility model also are,
Radiation tail end be PERT cold/hot coil.
Solar energy heat collector, include solar thermal collector, and solar thermal collector is by pipeline G 9with the hot water header tank, be connected, the hot water header tank is by water inlet pipe G 4with water collector, B is connected, and the hot water header tank is by outlet pipe G 3with water knockout drum, B is connected, and water knockout drum B is connected with the domestic hot-water's feed pipe passed in room, and the hot water header tank also is connected with the water tank filling pipe.
Vaporizing type air conditioner, include machine unit shell, be provided with air inlet on the machine unit shell sidewall, in machine unit shell, by the air approach axis, be provided with filler, the rear portion of filler is provided with pressure fan, be provided with air outlet on the corresponding machine unit shell sidewall of pressure fan, the top of filler is provided with drips shower device, and the bottom of filler is provided with water-collecting tray, is provided with water filter and ball-cock assembly in water-collecting tray, drip shower device and be connected with the water filter in water-collecting tray by water pipe, be provided with immersible pump on water pipe.
The evaporative cooling cooling-water machine includes unit casing, and unit casing inside is disposed with indirectly-direct combination devaporizer and direct evaporative cooler by new wind approach axis.
The structure of indirectly-direct combination devaporizer is: include filler A, the top of filler A is disposed with spray arm A, water fender A and exhaust blower A, the below of filler A is provided with indirect heat exchanger, be provided with fresh wind port on unit casing corresponding to indirect heat exchanger, be provided with filter between fresh wind port and indirect heat exchanger, the below of indirect heat exchanger is provided with header tank A, is provided with water compensating valve A and water circulating pump in header tank A, and water circulating pump is connected with spray arm A by feed pipe.
The structure of direct evaporative cooler is: include filler B, the top of filler B is disposed with spray arm B, water fender B and exhaust blower B, the below of filler B is provided with air channel, header tank B, be provided with hydrotreater and water compensating valve B in header tank B, hydrotreater is connected with waterway pipe, waterway pipe and outlet pipe G 1connect, be provided with water pump on waterway pipe, water inlet pipe G 2with the spray arm, B is connected.
Fire coal/gas fired-boiler, methane boiler, methane-generating pit with the pipe network structure between solar energy heat collector are: fire coal/gas fired-boiler is communicated with methane-generating pit by exit flue, and fire coal/gas fired-boiler is by water inlet pipe G 6with outlet pipe G 5with the hot water header tank, be communicated with, methane boiler is by water inlet pipe G 8with outlet pipe G 7with the hot water header tank, be communicated with.
The beneficial effects of the utility model are,
1) take full advantage of renewable and clean energy resource: utilize renewable and clean energy resource " dry air energy " summer, adopt evaporation cooling technique to produce high temperature cold water and supply with radiation tail end, adopt evaporation cooling technique to process fresh air supply indoor; Utilize solar energy winter, by the solar thermal collector hot water preparing, supply with radiation tail end, or the biogas that utilizes methane-generating pit to produce, adopt methane boiler to supply with radiation tail end, realize refrigeration, the function heated, guarantee the humiture requirement in room, guarantee domestic hot-water's demand simultaneously.
2) utilize fire coal/gas fired-boiler as the ancillary equipment heated, guarantee that the hot water temperature's is stable.
3) utilize cooling or the heat supply of radiation tail end, guaranteed the demand of indoor fresh air comfortableness simultaneously.
4) exhaust of fire coal/gas fired-boiler can be carried out recuperation of heat, passes into methane-generating pit and carries out heat exchange, has strengthened the factor of created gase of methane-generating pit.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model heating-ventilation-air-conditioning system;
Fig. 2 is the structural representation of vaporizing type air conditioner in the utility model heating-ventilation-air-conditioning system;
Fig. 3 is the structural representation of evaporative cooling cooling-water machine in the utility model heating-ventilation-air-conditioning system.
In figure, 1. room, 2. radiation tail end, 3. evaporative cooling cooling-water machine, 4. vaporizing type air conditioner, 5. solar thermal collector, 6. hot water header tank, 7. fire coal/gas fired-boiler, 8. methane boiler, 9. exit flue, 10. water collector A, 11. water knockout drum A, 12. water knockout drum B, 13. water collector B, 14. domestic hot-water's feed pipe, 15. water tank filling pipe, 16. pressure fan, 17. immersible pump, 18 water filters, 19. water-collecting tray, 20. ball-cock assembly, 21. filler, 22. drip shower device, 23. filter, 24. indirect heat exchanger, 25. filler A, 26. spray arm A, 27. water fender A, 28. exhaust blower A, 29. exhaust blower B, 30. water fender B, 31. spray arm B, 32. filler B, 33. water pump, 34. hydrotreater, 35. header tank B, 36. water compensating valve B, 37. water compensating valve A, 38. header tank A, 39. water circulating pump, 40. methane-generating pit.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The utility model be applicable to grange the heating-ventilation-air-conditioning system structure as shown in Figure 1, include the capillary be layed on the interior ground radiation tail end 2 in room 1 and room 1 interior walls, be provided with solar energy heat collector on the roof in room 1, room 1 is outside equipped with evaporative cooling cooling-water machine 3 and vaporizing type air conditioner 4, and evaporative cooling cooling-water machine 3 is by outlet pipe G 1with water knockout drum, A11 is connected, and evaporative cooling cooling-water machine 3 is by oral siphon G 2with water collector, A10 is connected, water collector A10 is communicated with radiation tail end 2, vaporizing type air conditioner 4 is communicated with room 1 is interior by airduct, the outside in room 1 also is provided with methane-generating pit 40, other fire coal/gas fired-boiler 7 and the methane boiler 8 of being provided with of methane-generating pit 40, be connected by pipe network between fire coal/gas fired-boiler 7, methane boiler 8, methane-generating pit 40 and solar energy heat collector.
Radiation tail end 2 be PERT cold/hot coil.
Solar energy heat collector, its structure as shown in Figure 1, includes solar thermal collector 5, and solar thermal collector 5 is by pipeline G 9with hot water header tank 6, be connected, hot water header tank 6 is by water inlet pipe G 4with water collector, B13 is connected, and hot water header tank 6 is by outlet pipe G 3with water knockout drum, B12 is connected, and water knockout drum B12 is connected with the domestic hot-water's feed pipe 14 passed in room 1, and hot water header tank 6 also is connected with water tank filling pipe 15.
Vaporizing type air conditioner 4, its structure as shown in Figure 2, include machine unit shell, be provided with air inlet on the machine unit shell sidewall, be provided with filler 21 by the air approach axis in machine unit shell, the rear portion of filler 21 is provided with pressure fan 16, be provided with air outlet on the corresponding machine unit shell sidewall of pressure fan 16, the top of filler 21 is provided with drips shower device 22, the bottom of filler 21 is provided with water-collecting tray 19, be provided with water filter 18 and ball-cock assembly 20 in water-collecting tray 19, dripping shower device 22 is connected with the water filter 18 in water-collecting tray 19 by water pipe, be provided with immersible pump 17 on water pipe.
Evaporative cooling cooling-water machine 3, its structure as shown in Figure 3, includes unit casing, and unit casing inside is disposed with indirectly-direct combination devaporizer and direct evaporative cooler by new wind approach axis.
The structure of indirectly-direct combination devaporizer is: include filler A25, the top of filler A25 is disposed with spray arm A26, water fender A27 and exhaust blower A28, the below of filler A25 is provided with indirect heat exchanger 24, be provided with fresh wind port on the unit casing of indirect heat exchanger 24 correspondences, be provided with filter 23 between fresh wind port and indirect heat exchanger 24, the below of indirect heat exchanger 24 is provided with header tank A38, be provided with water compensating valve A37 and water circulating pump 39 in header tank A38, water circulating pump 39 is connected with spray arm A26 by feed pipe.
The structure of direct evaporative cooler is: include filler B32, the top of filler B32 is disposed with spray arm B31, water fender B30 and exhaust blower B29, the below of filler B32 is provided with air channel, header tank B35, be provided with hydrotreater 34 and water compensating valve B36 in header tank B35, hydrotreater 34 is connected with waterway pipe, waterway pipe and outlet pipe G 1connect, be provided with water pump 33 on waterway pipe, water inlet pipe G 2with the spray arm, B31 is connected.
Fire coal/gas fired-boiler 7, methane boiler 8, methane-generating pit 40 with the pipe network structure between solar energy heat collector are: fire coal/gas fired-boiler 7 is communicated with methane-generating pit 40 by exit flue 9, and fire coal/gas fired-boiler 7 is by water inlet pipe G 6with outlet pipe G 5with hot water header tank 6, be communicated with, methane boiler 8 is by water inlet pipe G 8with outlet pipe G 7with hot water header tank 6, be communicated with.
Be equipped with radiation tail end 2 in room 1, at metope, lay capillary, on floor, lay PERT cold/hot coil.Top outside room 1 arranges solar energy heat collector; In room, the 1 outside evaporative cooling cooling-water machine 3 of placing, be connected with the radiation tail end 2 in room 1 by water knockout drum A11, water collector A10; In room, vaporizing type air conditioner 4 is also placed in 1 outside, by airduct, new wind is sent into to room 1; Other fire coal/gas fired-boiler 7 and the methane boiler 8 of being placed with of the methane-generating pit 40 of 1 outside, room; Between solar energy heat collector, fire coal/gas fired-boiler 7, methane boiler 8, methane-generating pit 40, by pipe network, be connected.
At all seasons, a part of hot water in hot water header tank 6 can pass through water knockout drum B12, by domestic hot-water's feed pipe 14, is fed through room 1, meets domestic hot-water's demand.The smoke evacuation flue gas of fire coal/gas fired-boiler 7 can pass through exit flue 9, carries out recuperation of heat in methane-generating pit 40, is conducive to improve the temperature of methane-generating pit, and then strengthens the gas production of methane-generating pit.
The course of work of the utility model heating-ventilation-air-conditioning system:
During summer, adopt evaporative cooling cooling-water machine 3 output cold water, cold water is passed in the radiation tail end 2 of room 1 interior laying by water knockout drum A11, then catchments by water collector A10, gets back in evaporative cooling cooling-water machine 3.
The course of work in evaporative cooling cooling-water machine 3 is:
Outdoor air, by being filtered by screen pack 23, enters into the dry passage of indirect heat exchanger 24 as output air (primary air), by the channel wall heat transfer of indirect heat exchanger 24, air quilt etc. are but clammy; Carry out the wet exchange of heat on filler B32 surface with moisture film again, the heat that band is leaked water, the temperature reduction of water, approach the wet-bulb temperature of the air after processed; Air drains into atmosphere by water fender B30 by exhaust blower B29; Outdoor air is by entering into the wet channel of indirect heat exchanger 24 as control air (auxiliary air), carry out the wet exchange of heat with the moisture film on indirect heat exchanger 24 wet channel surfaces, take away the heat of output air (primary air) in indirect heat exchanger 24 dry passages, carry out the wet exchange of heat with the moisture film on filler A25 surface again, by water fender A27, by exhaust blower A28, drain into atmosphere.Water in header tank A38 is sprayed to filler A25 surface by spray arm A26 by water circulating pump 39, water is uniformly distributed by filler A25, enter into the wet channel side of indirect heat exchanger 24, finally fall into header tank A38, water level in header tank A38 during lower than a certain value by water compensating valve A37 automatic water supplement, header tank B35 collects processed water, then processes by hydrotreater 34, by water pump 33, sends into water knockout drum A11.
Adopt vaporizing type air conditioner 4 to process new wind:
New wind is lowered the temperature by equal-enthalpy humidifying through filler 21, by pressure fan 16, is sent into indoorly, and the water in water-collecting tray 19 filters through water filter 18, by dripping 22 of shower devices, drenches to filler 21 surfaces.
During winter, adopt solar thermal collector 5 to absorb heat, by pipeline G 9with hot water header tank 6, be connected, the water in heat hot water header tank 6, when water temperature does not meet the demands, methane boiler 8 is opened automatically, the biogas combustion produced by methane-generating pit 40, the water in heat hot water header tank 6; When biogas is not enough, fire coal/gas fired-boiler 7 is opened, and the water in hot water header tank 6 is heated, constant to guarantee the water temperature in hot water header tank 6.
Water in hot water header tank 6 divides water by water knockout drum B12, is passed in radiation tail end 2.Collect by water collector B13 again, get back in hot water header tank 6.During water shortage in hot water header tank 6, by water tank filling pipe 15, carry out moisturizing.

Claims (8)

1. a heating-ventilation-air-conditioning system that is applicable to grange, it is characterized in that, include the capillary be layed on the interior ground radiation tail end (2) in room (1) and room (1) interior walls, be provided with solar energy heat collector on the roof in described room (1), described room (1) is outside equipped with evaporative cooling cooling-water machine (3) and vaporizing type air conditioner (4), and described evaporative cooling cooling-water machine (3) is by outlet pipe G 1with water knockout drum A(11) be connected, described evaporative cooling cooling-water machine (3) is by oral siphon G 2with water collector A(10) be connected, described water collector A(10) with described radiation tail end (2), be communicated with, described vaporizing type air conditioner (4) is communicated with in described room (1) by airduct, the outside in described room (1) also is provided with methane-generating pit (40), other fire coal/gas fired-boiler (7) and the methane boiler (8) of being provided with of described methane-generating pit (40), be connected by pipe network between described fire coal/gas fired-boiler (7), methane boiler (8), methane-generating pit (40) and solar energy heat collector.
2. according to the heating-ventilation-air-conditioning system that is applicable to grange claimed in claim 1, it is characterized in that, described radiation tail end (2) be PERT cold/hot coil.
3. according to the heating-ventilation-air-conditioning system that is applicable to grange claimed in claim 1, it is characterized in that, described solar energy heat collector, include solar thermal collector (5), and described solar thermal collector (5) is by pipeline G 9with hot water header tank (6), be connected, described hot water header tank (6) is by water inlet pipe G 4with described water collector B(13) be connected, described hot water header tank (6) is by outlet pipe G 3with water knockout drum B(12) be connected described water knockout drum B(12) being connected with the domestic hot-water's feed pipe (14) passed in room (1), described hot water header tank (6) also is connected with water tank filling pipe (15).
4. according to the heating-ventilation-air-conditioning system that is applicable to grange claimed in claim 1, it is characterized in that, described vaporizing type air conditioner (4), include machine unit shell, be provided with air inlet on described machine unit shell sidewall, be provided with filler (21) by the air approach axis in described machine unit shell, the rear portion of described filler (21) is provided with pressure fan (16), be provided with air outlet on the corresponding machine unit shell sidewall of described pressure fan (16), the top of described filler (21) is provided with drips shower device (22), the bottom of described filler (21) is provided with water-collecting tray (19), be provided with water filter (18) and ball-cock assembly (20) in described water-collecting tray (19), described shower device (22) is connected with the water filter (18) in described water-collecting tray (19) by water pipe, be provided with immersible pump (17) on described water pipe.
5. according to the heating-ventilation-air-conditioning system that is applicable to grange claimed in claim 1, it is characterized in that, described evaporative cooling cooling-water machine (3) includes unit casing, and unit casing inside is disposed with indirectly-direct combination devaporizer and direct evaporative cooler by new wind approach axis.
6. according to the heating-ventilation-air-conditioning system that is applicable to grange claimed in claim 5, it is characterized in that, described indirectly-structure of direct combination devaporizer is: include filler A(25), described filler A(25) top is disposed with spray arm A(26), water fender A(27) and exhaust blower A(28), described filler A(25) below is provided with indirect heat exchanger (24), be provided with fresh wind port on the unit casing of described indirect heat exchanger (24) correspondence, be provided with filter (23) between described fresh wind port and described indirect heat exchanger (24), the below of described indirect heat exchanger (24) is provided with header tank A(38), described header tank A(38) in, be provided with water compensating valve A(37) and water circulating pump (39), described water circulating pump (39) is by feed pipe and described spray arm A(26) be connected.
7. according to the heating-ventilation-air-conditioning system that is applicable to grange claimed in claim 5, it is characterized in that, the structure of described direct evaporative cooler is: include filler B(32), described filler B(32) top is disposed with spray arm B(31), water fender B(30) and exhaust blower B(29), described filler B(32) below is provided with air channel, header tank B(35), described header tank B(35) be provided with hydrotreater (34) and water compensating valve B(36 in), described hydrotreater (34) is connected with waterway pipe, described waterway pipe and described outlet pipe G 1connect, be provided with water pump (33) on described waterway pipe, described water inlet pipe G 2with described spray arm B(31) be connected.
8. according to the heating-ventilation-air-conditioning system that is applicable to grange claimed in claim 1, it is characterized in that, described fire coal/gas fired-boiler (7), methane boiler (8), methane-generating pit (40) with the pipe network structure between described solar energy heat collector are: described fire coal/gas fired-boiler (7) is communicated with described methane-generating pit (40) by exit flue (9), and described fire coal/gas fired-boiler (7) is by water inlet pipe G 6with outlet pipe G 5with described hot water header tank (6), be communicated with, described methane boiler (8) is by water inlet pipe G 8with outlet pipe G 7with described hot water header tank (6), be communicated with.
CN2012206722559U 2012-12-06 2012-12-06 Heat supply and venting air conditioning system suitable for rural residences Expired - Fee Related CN203024308U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012206722559U CN203024308U (en) 2012-12-06 2012-12-06 Heat supply and venting air conditioning system suitable for rural residences

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012206722559U CN203024308U (en) 2012-12-06 2012-12-06 Heat supply and venting air conditioning system suitable for rural residences

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CN203024308U true CN203024308U (en) 2013-06-26

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103017273A (en) * 2012-12-06 2013-04-03 西安工程大学 Heating and ventilating air conditioner system for rural residence
CN104654827A (en) * 2015-03-09 2015-05-27 苏州洛特兰新材料科技有限公司 Direct contact type ceramic heat exchange device
CN105238679A (en) * 2015-05-05 2016-01-13 王安 Solar vacuum heat collecting methane tank

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103017273A (en) * 2012-12-06 2013-04-03 西安工程大学 Heating and ventilating air conditioner system for rural residence
CN103017273B (en) * 2012-12-06 2015-03-04 西安工程大学 Heating and ventilating air conditioner system for rural residence
CN104654827A (en) * 2015-03-09 2015-05-27 苏州洛特兰新材料科技有限公司 Direct contact type ceramic heat exchange device
CN105238679A (en) * 2015-05-05 2016-01-13 王安 Solar vacuum heat collecting methane tank

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Granted publication date: 20130626

Termination date: 20131206