CN112484138A - Domestic natural gas heating system - Google Patents
Domestic natural gas heating system Download PDFInfo
- Publication number
- CN112484138A CN112484138A CN202011367662.4A CN202011367662A CN112484138A CN 112484138 A CN112484138 A CN 112484138A CN 202011367662 A CN202011367662 A CN 202011367662A CN 112484138 A CN112484138 A CN 112484138A
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- box
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- heat exchanger
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- 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
- F24D19/08—Arrangements for drainage, venting or aerating
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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)
- Central Heating Systems (AREA)
Abstract
The invention discloses a household natural gas heating system, wherein a wind mixing box is fixedly arranged on one side of a box body, a first fan is fixedly arranged on one side of the inner wall of the wind mixing box, a screen is fixedly arranged on the inner wall of the wind mixing box, a second fan is fixedly arranged on one side of the inner wall of the wind mixing box, a first guide pipe is fixedly communicated with one side of the wind mixing box, a first serpentine pipe heat exchanger is fixedly connected to one end of the first guide pipe, which is far away from the wind mixing box, a first pipeline is fixedly arranged on one end of the first serpentine pipe heat exchanger, the device is provided with the second fan, the device can absorb indoor hot air and realize the cyclic utilization of indoor temperature, so that the utilization rate of preheating is improved, and the device is provided with a combustion box and a fourth fan, the air in the first serpentine pipe heat exchanger and the second serpentine pipe heat exchanger can, meanwhile, the consumption of natural gas can be reduced.
Description
Technical Field
The invention belongs to the technical field of household natural gas heating systems, and particularly relates to a household natural gas heating system.
Background
The breadth of our country is vast, and the span between south and north is large. In northern areas, central heating is mostly adopted, and in southern areas, a heating system is not arranged because of short period in winter and high air temperature. The collective heating system mainly comprises a boiler room, a water supply pipeline and user heating equipment, and has the advantages of huge engineering quantity, complex system, high energy consumption, low heat efficiency, large consumption of manpower and material resources and inapplicability to the requirement of heating in winter in the south of China. In winter, heat is supplied, the room is closed for a long time, the oxygen content of the air is reduced, and the water content in the air is reduced, so that the room is suffocated, the air is dry, and people feel uncomfortable.
In addition, the heat exchange performance of the heat exchange device is poor, the waste heat of the flue gas is not fully utilized, and the existing natural gas heating device consumes large natural gas, so that the use cost is increased after long-term use, and the natural gas heating device is not suitable for all families; however, in the technology, fan coils are required to be installed at the tail ends of all rooms of user heating equipment, and daily maintenance is required, so that the workload of maintenance and management is large; and the fan coil carries out heat conversion once more, and heating efficiency reduces.
Therefore, we propose a domestic natural gas heating system to solve the problems existing in the prior art.
Disclosure of Invention
The invention aims to provide a household natural gas heating system, which is provided with a second fan and can absorb indoor hot air and realize the cyclic utilization of indoor temperature, thereby improving the utilization rate of preheating.
In order to achieve the purpose, the invention adopts the following technical scheme: a household natural gas heating system comprises a box body, wherein a wind mixing box is fixedly arranged on one side of the box body, a first fan is fixedly arranged on one side of the inner wall of the wind mixing box, a screen is fixedly arranged on the inner wall of the wind mixing box, a second fan is fixedly arranged on one side of the inner wall of the wind mixing box, a first conduit is fixedly communicated with one side of the wind mixing box, a first serpentine heat exchanger is fixedly connected with one end of the first conduit away from the wind mixing box, a first pipeline is fixedly arranged on one end of the first serpentine heat exchanger, a second serpentine heat exchanger is fixedly communicated with one end of the first conduit away from the second conduit, a second pipeline is fixedly arranged on one side of the inner wall of the box body, a second conduit is fixedly arranged on one end of the second pipeline away from the second serpentine heat exchanger, one end of the second conduit away from the second pipeline penetrates through the outer wall of the box body and is fixedly connected with a third conduit, the utility model discloses a humidification device, including humidification case, first pipe, second pipe, humidification case, baffle, fixed intercommunication, fourth pipe, first fan, second pipe, humidification case inner wall fixed mounting has the nozzle, the fixed intercommunication in humidification case one side has the fourth pipe, the fourth pipe runs through in humidification case outer wall and fixedly connected with third pipeline, box inner wall fixed mounting has the baffle, fixed surface installs the fourth fan under the baffle, the fixed intercommunication in fourth fan one side has the third tuber pipe, the fourth fan one end is kept away from to the third tuber pipe and is run through in the baffle upper surface, box inner wall one side fixed mounting has the burning box, the fixed intercommunication in burning box one side has the fifth pipe, the fifth pipe is kept away from burning box one end and is run through in the box outer wall, box inner wall fixed mounting has the heat preservation.
Preferably, a first air pipe is fixedly communicated with one side of the first fan and penetrates through the outer wall of the air mixing box.
Preferably, a second air pipe is fixedly communicated with one side of the second fan, and the second air pipe penetrates through the outer wall of the air mixing box.
Preferably, a first flange is fixedly installed at the fixed connection position of the first serpentine tube type heat exchanger and the first conduit.
Preferably, a second flange is fixedly installed at the fixed connection position of the third guide pipe and the second guide pipe.
Preferably, a through groove is formed in the first pipeline, and one ends of the first coiled pipe type heat exchanger and the second coiled pipe type heat exchanger are fixedly communicated with the through groove.
Preferably, the surface of the combustion box is provided with an air outlet.
Preferably, the bottom of the box body is provided with a water outlet, and a drain pipe is fixedly arranged at the position, located at the water outlet, outside the box body.
Preferably, the first serpentine tube type heat exchanger and the second serpentine tube type heat exchanger are both arranged into a plurality of groups, and the number of the first serpentine tube type heat exchanger is consistent with that of the second serpentine tube type heat exchanger.
The invention has the technical effects and advantages that: compared with the prior art, the household natural gas heating system provided by the invention has the following advantages:
1. the device is provided with the second fan, so that hot air in a room can be absorbed, the cyclic utilization of the indoor temperature is realized, and the utilization rate of preheating is improved;
2. the device installs combustion box and fourth fan, can heat and preheat the air in first coiled tubular heat exchanger and the second coiled tubular heat exchanger, can improve heat transfer performance, also can reduce the use amount of natural gas simultaneously.
Drawings
FIG. 1 is a schematic sectional view of a household natural gas heating system according to the present invention;
FIG. 2 is a schematic side sectional view of a domestic natural gas heating system according to the present invention;
FIG. 3 is a schematic top sectional view of a domestic natural gas heating system according to the present invention;
FIG. 4 is a schematic side view of a domestic natural gas heating system according to the present invention;
fig. 5 is an enlarged structural diagram A of a household natural gas heating system.
In the figure: 1. a box body; 2. a wind mixing box; 3. a first fan; 4. screening a screen; 5. a second fan; 6. a first conduit; 7. a first serpentine tube heat exchanger; 8. a first conduit; 9. a second serpentine tube heat exchanger; 10. a second conduit; 11. a second conduit; 12. a third conduit; 13. a humidifying box; 14. a third fan; 15. a nozzle; 16. a fourth conduit; 17. a third pipeline; 18. a baffle plate; 19. a fourth fan; 20. a third air duct; 21. a combustion box; 22. a fifth conduit; 23. a heat-insulating layer; 24. a first air duct; 25. a second air duct; 26. a first flange; 27. a second flange; 28. a through groove; 29. an air outlet; 30. a water outlet; 31. and a water discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme as shown in figures 1-5: a household natural gas heating system comprises a box body 1, a wind mixing box 2 is fixedly arranged on one side of the box body 1, the wind mixing box 2 is arranged for storing external air and indoor air, a first fan 3 is fixedly arranged on one side of the inner wall of the wind mixing box 2, the first fan 3 is arranged for extracting the external air, a first air pipe 24 is fixedly communicated with one side of the first fan 3 and is arranged for conveying the external air, the first air pipe 24 penetrates through the outer wall of the wind mixing box 2, a screen 4 is fixedly arranged on the inner wall of the wind mixing box 2, the screen 4 is arranged for filtering the external air extracted by the first fan 3 and preventing dust from entering the room, a second fan 5 is fixedly arranged on one side of the inner wall of the wind mixing box 2 and is arranged for extracting the indoor air and realizing the preheating of the air, a second air pipe 25 is fixedly communicated with one side of the second fan 5, and is arranged for conveying the indoor air by the second air pipe 25, second tuber pipe 25 with run through in mixing wind case 2 outer wall, mix wind case 2 one side fixed intercommunication and have first pipe 6, set up first pipe 6 and be in order to send into first snakelike tubular heat exchanger 7 with the air after external air and the room air mixture.
One end of the first conduit 6, which is far away from the air mixing box 2, is fixedly connected with a first serpentine tube type heat exchanger 7, the first serpentine tube type heat exchanger 7 is arranged for conveying air and reacting with redundant heat generated by the combustion box 21 to preheat the air, a first flange 26 is fixedly arranged at the fixed connection position of the first serpentine tube type heat exchanger 7 and the first conduit 6, the first flange 26 is arranged for fixedly connecting the first serpentine tube type heat exchanger 7 and the first conduit 6 and is also convenient to disassemble, one end of the first serpentine tube type heat exchanger 7 is fixedly provided with a first pipeline 8, the first pipeline 8 is arranged for connecting the first serpentine tube type heat exchanger 7 and a second serpentine tube type heat exchanger 9, one end of the first pipeline 8 is fixedly communicated with the second serpentine tube type heat exchanger 9, the second serpentine tube type heat exchanger 9 is arranged for heating the air, the first serpentine tube type heat exchanger 7 and the second serpentine tube type heat exchanger 9 are arranged into a plurality of groups, the number of the first serpentine tube type heat exchangers 7 is the same as that of the second serpentine tube type heat exchangers 9, the arrangement is to improve the heat supply efficiency, a second flange 27 is fixedly installed at the fixed connection position of the third conduit 12 and the second conduit 11, the second flange 27 is arranged to fixedly connect the second serpentine tube type heat exchangers 9 and the second conduit 11, and meanwhile, the second serpentine tube type heat exchangers 9 and the second conduit 11 are convenient to disassemble, a through groove 28 is arranged in the first pipeline 8, the through groove 28 is arranged to convey the preheated air in the first serpentine tube type heat exchanger 7 to the second serpentine tube type heat exchangers 9, one ends of the first serpentine tube type heat exchangers 7 and one end of the second serpentine tube type heat exchangers 9 are fixedly communicated with the through groove 28, one end of the second serpentine tube type heat exchanger 9, far away from the first pipeline 8, is fixedly communicated with the second pipeline 10, and the second pipeline 10 is arranged to concentrate the hot air in the plurality of second tube type heat exchangers 9, one side of the second pipeline 10 is fixedly arranged on one side of the inner wall of the box body 1, one end, far away from the second serpentine tube type heat exchanger 9, of the second pipeline 10 is fixedly provided with a second guide pipe 11, and the second guide pipe 11 is arranged to convey hot air out of the box body 1.
One end of the second conduit 11, which is far away from the second pipeline 10, penetrates through the outer wall of the box body 1 and is fixedly connected with a third conduit 12, the third conduit 12 is also arranged for conveying hot air, one end of the third conduit 12, which is far away from the second conduit 11, is fixedly communicated with a humidifying box 13, the humidifying box 13 is arranged for not only reducing the temperature of the hot air, but also ensuring the humidity of the hot air, and preventing a user from feeling dry, the inner wall of the humidifying box 13 is fixedly provided with a third fan 14, the third fan 14 is arranged for extracting the hot air in the second serpentine tube type heat exchanger 9, the inner wall of the humidifying box 13 is fixedly provided with a nozzle 15, the nozzle 15 is arranged for facilitating the ejection of the hot air, one side of the humidifying box 13 is fixedly communicated with a fourth conduit 16, the fourth conduit 16 is arranged for conveying the humidified hot air into the third pipeline 17, the fourth conduit 16 penetrates through the outer wall of the humidifying box 13, the third duct 17 is provided to deliver the humidified hot air to the room.
A baffle 18 is fixedly arranged on the inner wall of the box body 1, the baffle 18 is arranged to divide the box body 1 into two box chambers, a fourth fan 19 is fixedly arranged on the lower surface of the baffle 18, the fourth fan 19 is arranged to absorb heat generated by the combustion box 21 below the baffle 18 to preheat air in the first serpentine tube type heat exchanger 7, a third air pipe 20 is fixedly communicated with one side of the fourth fan 19 and is arranged to convey the heat generated by the combustion box 21, one end, far away from the fourth fan 19, of the third air pipe 20 penetrates through the upper surface of the baffle 18, the combustion box 21 is fixedly arranged on one side of the inner wall of the box body 1 and is arranged to generate heat energy through combustion of natural gas, an air outlet 29 is arranged on the surface of the combustion box 21 and is arranged to discharge the heat generated by the combustion into the box body 1, a fifth guide pipe 22 is fixedly communicated with one side of the combustion box 21, the fifth guide pipe 22 is arranged to convey natural gas, one end, far away from the combustion box 21, of the fifth guide pipe 22 penetrates through the outer wall of the box body 1, a heat preservation layer 23 is fixedly arranged on the inner wall of the box body 1, the heat preservation layer 23 is arranged to protect heat in the box body 1 and prevent heat loss, a water outlet 30 is formed in the bottom of the box body 1, a water source generated after hot air below the baffle plate 18 is cooled is arranged in the water outlet 30 to be discharged, a water discharge pipe 31 is fixedly arranged at the position, located at the water outlet 30, of the outer side of the box body 1, and the water.
The working principle is as follows: when the air heating device is used, a user places the first air pipe 24 outdoors, places the second air pipe 25 indoors, switches on natural gas, the natural gas enters the combustion box 21 through the fifth guide pipe 22 to be combusted, then starts the first fan 3, the first fan 3 conveys outside air into the air mixing box 2 through the first air pipe 24, the outside air is filtered when passing through the screen 4, dust and impurities doped in the air are blocked outside, then the outside air enters the second serpentine tube type heat exchanger 9 through the first guide pipe 6, then enters the through groove 28 in the first pipeline 8 and then enters the second serpentine tube type heat exchanger 9, due to the combustion of the natural gas, the air above the baffle 18 in the box body 1 is heated, the hot air in the second serpentine tube type heat exchanger 9 is heated, and the air in the heated second serpentine tube type heat exchanger 9 is concentrated in the second pipeline 10, then the air enters a humidifying box 13 through a second conduit 11 and a third conduit 12, at the moment, a nozzle 15 in the humidifying box 13 is connected with a water source, the nozzle 15 sprays the water source into the humidifying box 13 to increase the humidity of the heated air and prevent a user from feeling dry, at the moment, the indoor temperature rises, the user starts a second fan 5, the second fan 5 pumps the indoor air into an air mixing box 2 through a second air pipe 25, the warm indoor air and the cold outdoor air are mixed in the air mixing box 2 and then enter a first serpentine tube type heat exchanger 7 through a first conduit 6, natural gas is combusted in a combustion box 21 to heat the air in a second serpentine tube type heat exchanger 9, simultaneously, the user starts a fourth fan 19, the fourth fan 19 conveys the hot air in the box body 1 above a baffle 18 to the lower part of the baffle 18 through a third conduit 20 to preheat the mixed air in the first serpentine tube type heat exchanger 7, just so realized thermal cyclic utilization to can reduce the use of natural gas, because meet cold suddenly behind the hot-air admission baffle 18 below, in addition heat the air mixture in first snakelike tubular heat exchanger 7, lead to carrying the hot-air that gets off and can condense, the water source that produces after the condensation can be discharged through outlet 30 and drain pipe 31, because the water source after the condensation can not be eaten, can be used to the other places of family, can reduce the waste of water resource like this.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a domestic natural gas heating system, includes box (1), its characterized in that: the air mixing box is characterized in that an air mixing box (2) is fixedly arranged on one side of the box body (1), a first fan (3) is fixedly arranged on one side of the inner wall of the air mixing box (2), a screen (4) is fixedly arranged on the inner wall of the air mixing box (2), a second fan (5) is fixedly arranged on one side of the inner wall of the air mixing box (2), a first guide pipe (6) is fixedly communicated with one side of the air mixing box (2), a first serpentine tubular heat exchanger (7) is fixedly connected with one end of the first guide pipe (6) far away from the air mixing box (2), a first pipeline (8) is fixedly arranged at one end of the first pipeline (8), a second serpentine tubular heat exchanger (9) is fixedly communicated with one end of the second pipeline (9), a second pipeline (10) is fixedly arranged on one side of the inner wall of the box body (1), the second pipeline (10) is far away from one end of the second coiled tube type heat exchanger (9) and is fixedly provided with a second conduit (11), one end, far away from the second pipeline (10), of the second conduit (11) penetrates through the outer wall of the box body (1) and is fixedly connected with a third conduit (12), one end, far away from the second conduit (11), of the third conduit (12) is fixedly communicated with a humidifying box (13), the inner wall of the humidifying box (13) is fixedly provided with a third fan (14), the inner wall of the humidifying box (13) is fixedly provided with a nozzle (15), one side of the humidifying box (13) is fixedly communicated with a fourth conduit (16), the fourth conduit (16) penetrates through the outer wall of the humidifying box (13) and is fixedly connected with a third pipeline (17), the inner wall of the box body (1) is fixedly provided with a baffle (18), and the lower surface of the baffle (18) is fixedly provided, fourth fan (19) one side is fixed the intercommunication and is had third tuber pipe (20), fourth fan (19) one end is kept away from in third tuber pipe (20) and is run through in baffle (18) upper surface, box (1) inner wall one side fixed mounting has burning case (21), the fixed intercommunication in burning case (21) one side has fifth pipe (22), burning case (21) one end is kept away from in fifth pipe (22) and is run through in box (1) outer wall, box (1) inner wall fixed mounting has heat preservation (23).
2. A domestic natural gas heating system according to claim 1, wherein: a first air pipe (24) is fixedly communicated with one side of the first fan (3), and the first air pipe (24) penetrates through the outer wall of the air mixing box (2).
3. A domestic natural gas heating system according to claim 1, wherein: and a second air pipe (25) is fixedly communicated with one side of the second fan (5), and the second air pipe (25) penetrates through the outer wall of the air mixing box (2).
4. A domestic natural gas heating system according to claim 1, wherein: and a first flange (26) is fixedly arranged at the fixed connection part of the first serpentine tube type heat exchanger (7) and the first conduit (6).
5. A domestic natural gas heating system according to claim 1, wherein: and a second flange (27) is fixedly arranged at the fixed connection position of the third guide pipe (12) and the second guide pipe (11).
6. A domestic natural gas heating system according to claim 1, wherein: a through groove (28) is formed in the first pipeline (8), and one ends of the first coiled pipe type heat exchanger (7) and the second coiled pipe type heat exchanger (9) are fixedly communicated with the through groove (28).
7. A domestic natural gas heating system according to claim 1, wherein: an air outlet (29) is formed in the surface of the combustion box (21).
8. A domestic natural gas heating system according to claim 1, wherein: a water outlet (30) is formed in the bottom of the box body (1), and a water discharge pipe (31) is fixedly arranged at the position, located at the water outlet (30), of the outer side of the box body (1).
9. A domestic natural gas heating system according to claim 1, wherein: the first serpentine tube type heat exchanger (7) and the second serpentine tube type heat exchanger (9) are both arranged into a plurality of groups, and the number of the first serpentine tube type heat exchanger (7) is consistent with that of the second serpentine tube type heat exchanger (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367662.4A CN112484138A (en) | 2020-11-28 | 2020-11-28 | Domestic natural gas heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367662.4A CN112484138A (en) | 2020-11-28 | 2020-11-28 | Domestic natural gas heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112484138A true CN112484138A (en) | 2021-03-12 |
Family
ID=74937029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011367662.4A Withdrawn CN112484138A (en) | 2020-11-28 | 2020-11-28 | Domestic natural gas heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112484138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116181450A (en) * | 2022-12-28 | 2023-05-30 | 中国人民解放军火箭军士官学校 | Tail gas smoke elimination cooling device of diesel generator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1128134A1 (en) * | 2000-02-21 | 2001-08-29 | Olsberg Hermann Everken GmbH | Electric storage heater |
| CN2797939Y (en) * | 2005-08-19 | 2006-07-19 | 宋晓涛 | Domestic room heater using gas fuel giving hot wind |
| CN204554977U (en) * | 2014-09-11 | 2015-08-12 | 大连日盛能源科技有限公司 | Heating system |
| US20170314828A1 (en) * | 2012-07-06 | 2017-11-02 | Macpherson Engineering Inc. | Controller for controlling an air conditioning system and radiant heating apparatus in a building |
| CN110542148A (en) * | 2019-09-27 | 2019-12-06 | 河北工业大学 | Domestic natural gas heating system |
| CN110567154A (en) * | 2019-09-19 | 2019-12-13 | 姜立明 | Hot air generating device and application thereof, and household heated kang system |
| CN211119818U (en) * | 2019-11-28 | 2020-07-28 | 马建春 | Central gas warm air furnace system |
-
2020
- 2020-11-28 CN CN202011367662.4A patent/CN112484138A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1128134A1 (en) * | 2000-02-21 | 2001-08-29 | Olsberg Hermann Everken GmbH | Electric storage heater |
| CN2797939Y (en) * | 2005-08-19 | 2006-07-19 | 宋晓涛 | Domestic room heater using gas fuel giving hot wind |
| US20170314828A1 (en) * | 2012-07-06 | 2017-11-02 | Macpherson Engineering Inc. | Controller for controlling an air conditioning system and radiant heating apparatus in a building |
| CN204554977U (en) * | 2014-09-11 | 2015-08-12 | 大连日盛能源科技有限公司 | Heating system |
| CN110567154A (en) * | 2019-09-19 | 2019-12-13 | 姜立明 | Hot air generating device and application thereof, and household heated kang system |
| CN110542148A (en) * | 2019-09-27 | 2019-12-06 | 河北工业大学 | Domestic natural gas heating system |
| CN211119818U (en) * | 2019-11-28 | 2020-07-28 | 马建春 | Central gas warm air furnace system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116181450A (en) * | 2022-12-28 | 2023-05-30 | 中国人民解放军火箭军士官学校 | Tail gas smoke elimination cooling device of diesel generator |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210312 |
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| WW01 | Invention patent application withdrawn after publication |