CN104676726A - Wall-mounted gas fired warmer - Google Patents
Wall-mounted gas fired warmer Download PDFInfo
- Publication number
- CN104676726A CN104676726A CN201510008378.0A CN201510008378A CN104676726A CN 104676726 A CN104676726 A CN 104676726A CN 201510008378 A CN201510008378 A CN 201510008378A CN 104676726 A CN104676726 A CN 104676726A
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- Prior art keywords
- heat
- wall
- shell
- bellows
- heat exchanger
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Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 44
- 239000007789 gas Substances 0.000 claims abstract description 22
- 239000003517 fume Substances 0.000 claims description 25
- 230000006698 induction Effects 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000002912 waste gas Substances 0.000 abstract description 2
- 238000005192 partition Methods 0.000 abstract 2
- 239000000779 smoke Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 2
- 241001212038 Arcola Species 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 101150006257 rig-4 gene Proteins 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
Abstract
A wall-mounted gas fired warmer comprises a shell, a combustor, a combustion chamber, a heat exchanging device and a smoke exhausting device, wherein the combustor is arranged in the combustion chamber; the shell comprises a front shell and a rear shell; the front shell is provided with a rear opening; indoor air inlet holes are formed in the top and the upper portion of the front surface of the front shell; a hot air discharging hole is formed in the lower portion of the front surface of the front shell; an indoor air inlet hole is formed in the rear cover; the heat exchanging device comprises a heat exchanging chamber, a partition, heat exchangers and a through-flow wind wheel; the partition, the heat exchanger and the through-flow wind wheel are arranged in the heat exchanging chamber; the heat exchangers are respectively arranged in a front heat exchanging cavity and a rear heat exchanging cavity; a gas inlet end of each heat exchanger is positioned below a corresponding gas outlet end; the gas inlet ends and the gas outlet ends of the heat exchangers are fixedly connected with a wall plate at one end of the heat exchanging chamber; and the smoke exhausting device is matched with the gas outlet ends of the heat exchangers and is connected with the outside. The wall-mounted gas fired warmer can be arranged on a wall, and does not occupy lower space of an indoor environment; and during combustion of the combustor, required air enters the wall-mounted gas fired warmer from the outside, waste gas is discharged to the outside, the indoor environment is not polluted, the heat exchanging efficiency is high, and the energy is saved.
Description
Technical field
The present invention relates to a kind of gas burning heater, the gas burning heater on wall especially disposed in the interior.
Background technology
On existing market warmer be mainly divided into three major types: gas heating stove, space heater (hot-wind heating, oily spit of fland heating), boiler heating.Heating stove has another name called wall-hung boiler, can hot water, warm oneself dual-purpose, but its installing engineering complexity (need install heating pipeline in doors, installation of heat radiator), and mounting cost is relatively high, later period maintenance is also extremely inconvenient.Space heater is by the restriction of power load, and power limited caloric value is not high, the requirement of warming oneself when cannot meet cold, and the very large operating cost of power consumption is high.Boiler heating takies very large construction area, and the arcola thermal efficiency is low, and fire coal causes environmental pollution.Be not suitable for small size building to use.Because above-mentioned heating system limits, the Yangtze river basin is made still to adopt stove to warm oneself winter with some low developed areas, the north, not only dangerous but also unhygienic.The present invention is a kind of adopts heat exchange of heat pipe to be the gas heating equipment of feature, compensate for existing market heating equipment not enough.There is the features such as structure is simple, safe and reliable, control is convenient, the thermal efficiency is high, cost of use is low, convenient installation.
Summary of the invention
The object of the invention is: provide a kind of wall-hanging gas-fired warmer, it can be arranged on wall, takies space, room little, and indoor pollution-free, and the thermal efficiency is high.
The present invention is achieved in that a kind of wall-hanging gas-fired warmer, comprises shell, burner, combustion chamber, heat-exchanger rig and fume extractor; Burner is arranged in combustion chamber; Its special character is: described shell comprises fore shell and the bonnet of after-opening, and indoor air access holes is arranged at the top of fore shell, the top of front surface, and exhaust of hot air hole is arranged at the bottom of front surface; Bonnet there is indoor air access holes;
Described heat-exchanger rig comprises Heat Room, the dividing plate be arranged in Heat Room, heat exchanger and tubular wine wheel, Heat Room comprises the access opening being positioned at the rear lower discharge hot blast having air intake passage, be positioned at its length direction of front lower portion along its length, and dividing plate lower end is fixedly connected with Heat Room base plate, have hot-air water conservancy diversion gap between upper end and the top board of heat exchanger tube; Heat Room is partitioned into front heat exchanging chamber and rear heat exchanging chamber by dividing plate, and cross flow fan is arranged on the lower end of the Heat Room at air intake passage place; Tap is communicated with the exhaust of hot air hole of shell; The air heat insulation gap of room air is had between Heat Room and shell;
Described front heat exchanging chamber and rear heat exchanging chamber are respectively arranged with heat exchanger, and the inlet end of heat exchanger is positioned at below outlet side; The inlet end of heat exchanger is fixedly connected with a front sheet of Heat Room with outlet side;
The side opening end of described combustion chamber and the front sheet of Heat Room are fitted, heat exchanger inlet end and combustion chamber;
Described fume extractor coordinates with the outlet side of heat exchanger, and fume extractor is communicated with outdoor.
Described a kind of wall-hanging gas-fired warmer, its special character is: described burner comprises point gas part, nozzle, induction tunnel and a combustion head, and nozzle is arranged on point gas part, and induction tunnel one end is relative with nozzle, another end is provided with combustion head; One end that induction tunnel arranges combustion head is relative with the inlet end of heat exchanger;
Combustion chamber is communicated with outdoor.
Described a kind of wall-hanging gas-fired warmer, its special character is: described fume extractor comprises exhaust fume collecting hood and blower fan, and blower fan air intake nose end is communicated with exhaust fume collecting hood;
The bonnet of described shell is provided with through hole;
Also comprise bellows, exhaust vent is arranged at fresh air inlet, the opposite side bottom of bellows one upper lateral part; Fresh air inlet is provided with air intake interface;
The discharge pipe of described blower fan stretches out through the fresh air inlet on bellows, bellows and air intake interface, and air intake interface is communicated with bellows with the gap between discharge pipe; The exhaust vent of bellows and combustion chamber.
Described a kind of wall-hanging gas-fired warmer, its special character is: described fume extractor comprises exhaust fume collecting hood and blower fan, and blower fan air intake nose end is communicated with exhaust fume collecting hood;
The bonnet of described shell is provided with through hole;
Also comprise bellows, exhaust vent is arranged at have time gas air inlet pipe, opposite side bottom of bellows one upper lateral part; Fresh air inlet is provided with air intake interface;
Air intake duct passes the upper through hole of bonnet, the exhaust vent of bellows and combustion chamber;
The discharge pipe of described blower fan stretches out through the fresh air inlet on bellows, bellows and air intake interface, and air intake interface is communicated with bellows with the gap between discharge pipe; The exhaust vent of bellows and combustion chamber.
Described a kind of wall-hanging gas-fired warmer, its special character is: described heat exchanger is made up of metal tube bending, the inlet end of heat exchanger with outlet side towards identical.
Described a kind of wall-hanging gas-fired warmer, its special character is: the metal tube of described heat exchanger is bent into U-shaped;
Or the metal tube of described heat exchanger is bent into paliform.
Described a kind of wall-hanging gas-fired warmer, its special character is: the fixed mount also comprising shell, and fixed mount comprises vertical base plate, be positioned at the upper hook of the square of upper end and be positioned at the square lower draw-bar of lower end;
There is upper counterbore on the top of the bonnet of described shell and is positioned at the lower counterbore of bottom, the top board of upper counterbore has upper spliced eye, spliced eye under the having of the base plate of lower counterbore;
The bonnet that vertical panel inserts in upper spliced eye, level board supports upper counterbore place of upper hook, the vertical panel of lower draw-bar inserts in the lower spliced eye of lower counterbore, and the inner surface of vertical panel and bonnet is fitted.
Described a kind of wall-hanging gas-fired warmer, its special character is: described combustion head is cylindrical, combustion head has axial burner port and is positioned at the burning groove on outer surface.
Described a kind of wall-hanging gas-fired warmer, its special character is: described induction tunnel comprises truncated cone compression section, truncated cone diffuser and cylindrical combustion headstock.
A kind of wall-hanging gas-fired warmer of the present invention, owing to adopting such structure, can be arranged on wall, not take indoor lower space; The air needed during burner combustion enters outdoor, and waste gas is discharged to outdoor, pollution-free to indoor; Heat exchange efficiency is high, energy-conservation.
Accompanying drawing explanation
Fig. 1 is stereogram of the present invention.
Fig. 2 is one of three-dimensional cutaway view of the present invention.
Fig. 3 is three-dimensional cutaway view two of the present invention.
Fig. 4 is three-dimensional exploded view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of wall-hanging gas-fired warmer, comprises shell 1, burner 2, combustion chamber 3, heat-exchanger rig 4 and fume extractor 5; Burner 2 is arranged in combustion chamber 3.
Described shell 1 comprises fore shell 1A and the bonnet 1B of after-opening, and indoor air access holes 1C is arranged at the top of fore shell 1A, the top of front surface, and exhaust of hot air hole 1D is arranged at the bottom of front surface; Bonnet 1B there is indoor air access holes 1C;
Described heat-exchanger rig comprises Heat Room 41, the dividing plate 42 be arranged in Heat Room, heat exchanger 43 and cross flow fan 44, Heat Room 41 comprises the air channel 412 being positioned at rear lower wind inlet channel 411 along its length, being positioned at front lower portion discharge hot blast along its length, and dividing plate 42 lower end is fixedly connected with Heat Room 41 base plate, have hot-air water conservancy diversion gap between upper end and the top board of Heat Room 41; Heat Room 41 is partitioned into front heat exchanging chamber 41A and rear heat exchanging chamber 41B by dividing plate 42, and wind inlet channel 411 is positioned at the bottom of rear heat exchanging chamber 41B, and the air channel 412 of discharging hot blast is positioned at front heat exchanging chamber 41A bottom; Cross flow fan 44 is arranged on the Heat Room 41 at wind inlet channel 411 place; Discharge the air channel 412 of hot blast to be communicated with the exhaust of hot air hole 1D of shell 1; The air heat insulation gap of room air is had between Heat Room 41 and shell 1;
Described front heat exchanging chamber and rear heat exchanging chamber are respectively arranged with heat exchanger 43, and the inlet end 431 of heat exchanger 43 is positioned at below outlet side 432; The inlet end 431 of heat exchanger 43 is fixedly connected with a front sheet of Heat Room 41 with outlet side 432;
The side opening end of described combustion chamber 3 and the front sheet of Heat Room 41 are fitted, and heat exchanger 43 inlet end 431 is communicated with combustion chamber 3;
Described fume extractor 5 coordinates with the outlet side 432 of heat exchanger 43, and fume extractor 5 is communicated with outdoor.
As shown in Figure 4, described burner 2 comprises a point gas part 21, nozzle 22, induction tunnel 23 and combustion head 24, and nozzle 22 is arranged on point gas part 21, and induction tunnel 23 one end is relative with nozzle 22, the other end is provided with combustion head 24; One end that induction tunnel 23 arranges combustion head 24 is relative with the inlet end 411 of heat exchanger 41;
Described point of gas part 21 comprises gas-distributing pipe 211 and air inlet pipe 212, and nozzle 23 is arranged on gas-distributing pipe 211, and air inlet pipe 212 is communicated with gas-distributing pipe 211.
Described induction tunnel comprises truncated cone compression section, truncated cone diffuser and cylindrical combustion headstock.
The burning groove 242 described combustion head 24 being provided with several axial burner ports 241 and being positioned on outer surface.
Combustion chamber 3 is communicated with outdoor.
Described fume extractor 5 comprises exhaust fume collecting hood 51 and blower fan 52, and blower fan 52 air inlet is communicated with exhaust fume collecting hood 51;
The bonnet 1B of described shell 1 is provided with through hole 1B1;
Also comprise bellows 6, exhaust vent 62 is arranged at fresh air inlet 61, the opposite side bottom of bellows 6 one upper lateral part, fresh air inlet 61 is provided with air intake interface 611; Air intake interface 611 passes the through hole 1B1 on bonnet 1B and stretches out;
The discharge pipe 521 of described blower fan 52 stretches out through the fresh air inlet 61 on bellows 6, bellows and air intake interface 611, and the gap between air intake interface 611 with discharge pipe 521 is communicated with bellows 6; The exhaust vent 62 of bellows 6 docks with the fresh air inlet 31 of combustion chamber 3 and is communicated with.
Described heat exchanger 43
bymetal tube bending is made, the inlet end of heat exchanger 43 with outlet side towards identical.
The metal tube of described heat exchanger 43 is bent into U-shaped;
Or the metal tube of described heat exchanger 43 is bent into paliform.
Also comprise the fixed mount 7 of shell, fixed mount 7 comprises vertical base plate 71, be positioned at the upper hook 72 of the square of upper end and be positioned at the square lower draw-bar 73 of lower end;
There is upper counterbore 1B2 on the top of the bonnet 1B of described shell 1 and is positioned at the lower counterbore 1B3 of bottom, the top board of upper counterbore 1B2 has upper spliced eye, the base plate of lower counterbore 1B3 has lower spliced eye;
The bonnet 1B that vertical panel inserts in upper spliced eye, level board supports upper counterbore 1B2 place of upper hook 72, the vertical panel of lower draw-bar 73 inserts in the lower spliced eye of lower counterbore 1B3, and the inner surface of vertical panel and bonnet 1B is fitted.
In use, the vertical base plate 71 of fixed mount 7 is fixedly connected with wall in the present invention, the bonnet 1B of shell 1 with have gap between the walls; Combustion gas enters induction tunnel by a point gas part 21, and combustion head burns; Meanwhile, the blower fan 52 of fume extractor is started working, cross flow fan 44 rotates.
The heat that burner 2 produces enters heat exchanger 43 through the inlet end 431 of heat exchanger 43; Meanwhile, room air room air access aperture 1C on shell 1 enters in the gap between shell 1 and Heat Room 41, enter in Heat Room through cross flow fan 44 through air inlet duct 411, Heat Room 41 is partitioned into front heat exchanging chamber by dividing plate 42 and after heat exchanging chamber, first carry out heat exchange at front heat exchanging chamber and heat exchanger 43 high-temperature region, again through after heat exchanging chamber and heat exchanger 43 carry out heat exchange, the room air after heating is finally discharged to indoor by the air channel 412 of the hot blast of Heat Room 41.
Above-described is only preferred embodiments of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the principles of the present invention, can also make some improvement and modification, this is also considered as protection scope of the present invention.
Claims (9)
1. a wall-hanging gas-fired warmer, comprises shell, burner, combustion chamber, heat-exchanger rig and fume extractor; Burner is arranged in combustion chamber; It is characterized in that: described shell comprises fore shell and the bonnet of after-opening, indoor air access holes is arranged at the top of fore shell, the top of front surface, and exhaust of hot air hole is arranged at the bottom of front surface; Bonnet there is indoor air access holes;
Described heat-exchanger rig comprises Heat Room, the dividing plate be arranged in Heat Room,
heat exchangerand tubular wine wheel, Heat Room comprises the access opening being positioned at the rear lower discharge hot blast having air intake passage, be positioned at its length direction of front lower portion along its length, and dividing plate lower end is fixedly connected with Heat Room base plate, have hot-air water conservancy diversion gap between upper end and the top board of heat exchanger tube; Heat Room is partitioned into front heat exchanging chamber and rear heat exchanging chamber by dividing plate, and cross flow fan is arranged on the lower end of the Heat Room at air intake passage place; Tap is communicated with the exhaust of hot air hole of shell; Heat Room and shell it
between have the air heat insulation gap of room air;
Described front heat exchanging chamber and rear heat exchanging chamber are respectively arranged with
heat exchanger,
heat exchangerinlet end be positioned at below outlet side;
heat exchangerinlet end be fixedly connected with a front sheet of Heat Room with outlet side;
The side opening end of described combustion chamber and the front sheet of Heat Room are fitted,
heat exchangerinlet end and combustion chamber;
Described fume extractor with
heat exchangeroutlet side coordinate, fume extractor is communicated with outdoor.
2. a kind of wall-hanging gas-fired warmer according to claim 1, it is characterized in that: described burner comprises point gas part, nozzle, induction tunnel and a combustion head, nozzle is arranged on point gas part, and induction tunnel one end is relative with nozzle, another end is provided with combustion head; One end that induction tunnel arranges combustion head with
heat exchangerinlet end relative;
Combustion chamber is communicated with outdoor.
3. a kind of wall-hanging gas-fired warmer according to claim 1, is characterized in that: described fume extractor comprises exhaust fume collecting hood and blower fan, blower fan
air intake nose end is communicated with exhaust fume collecting hood;
the bonnet of described shell is provided with through hole;
Also comprise bellows, exhaust vent is arranged at fresh air inlet, the opposite side bottom of bellows one upper lateral part; Fresh air inlet is provided with air intake interface;
The discharge pipe of described blower fan stretches out through the fresh air inlet on bellows, bellows and air intake interface, and air intake interface is communicated with bellows with the gap between discharge pipe; The exhaust vent of bellows and combustion chamber.
4. a kind of wall-hanging gas-fired warmer according to claim 2, is characterized in that: described fume extractor comprises exhaust fume collecting hood and blower fan, and blower fan enters
air holes end is communicated with exhaust fume collecting hood;
the bonnet of described shell is provided with through hole;
Also comprise bellows, exhaust vent is arranged at have time gas air inlet pipe, opposite side bottom of bellows one upper lateral part; Fresh air inlet is provided with air intake interface;
Air intake duct passes
bonnetupper through hole, the exhaust vent of bellows and combustion chamber;
The discharge pipe of described blower fan stretches out through the fresh air inlet on bellows, bellows and air intake interface, and air intake interface is communicated with bellows with the gap between discharge pipe; The exhaust vent of bellows and combustion chamber.
5. a kind of wall-hanging gas-fired warmer according to claim 1,2,3 or 4, is characterized in that: described in
heat exchanger bymetal tube bending is made, the inlet end of heat exchanger with outlet side towards identical.
6. a kind of wall-hanging gas-fired warmer according to claim 5, is characterized in that: the metal tube of described heat exchanger is bent into U-shaped;
Or the metal tube of described heat exchanger is bent into paliform.
7. a kind of wall-hanging gas-fired warmer according to claim 1,2,3 or 4, is characterized in that: the fixed mount also comprising shell, and fixed mount comprises vertical base plate, be positioned at the upper hook of the square of upper end and be positioned at the square lower draw-bar of lower end;
the bonnet of described shelltop have upper counterbore and be positioned at the lower counterbore of bottom, the top board of upper counterbore has upper spliced eye, spliced eye under the having of the base plate of lower counterbore;
The upper spliced eye of vertical panel insertion of upper hook is interior, the upper counterbore place of level board support
bonnet, the vertical panel of lower draw-bar inserts in the lower spliced eye of lower counterbore, vertical panel with
bonnetinner surface laminating.
8. a kind of wall-hanging gas-fired warmer according to claim 2, is characterized in that: described combustion head is cylindrical, and combustion head has axial burner port and is positioned at the burning groove on outer surface.
9. a kind of wall-hanging gas-fired warmer according to claim 2, is characterized in that: described induction tunnel comprises truncated cone compression section, truncated cone diffuser and cylindrical combustion headstock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510008378.0A CN104676726B (en) | 2014-12-12 | 2015-01-08 | A kind of wall-hanging gas-fired warmer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014107603194 | 2014-12-12 | ||
| CN201410760319 | 2014-12-12 | ||
| CN201510008378.0A CN104676726B (en) | 2014-12-12 | 2015-01-08 | A kind of wall-hanging gas-fired warmer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104676726A true CN104676726A (en) | 2015-06-03 |
| CN104676726B CN104676726B (en) | 2017-03-15 |
Family
ID=53312121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510008378.0A Active CN104676726B (en) | 2014-12-12 | 2015-01-08 | A kind of wall-hanging gas-fired warmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104676726B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947300A (en) * | 2020-08-14 | 2020-11-17 | 山东华宇工学院 | Circulating heat exchange device and method for improving heat exchange efficiency |
| CN113739247A (en) * | 2021-09-30 | 2021-12-03 | 中山市傲的电器有限公司 | Gas warmer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007101815A1 (en) * | 2006-03-06 | 2007-09-13 | Gebr. Becker Gmbh | Method of operating a combined heat and power process and gas turbine building heating system |
| CN103175254A (en) * | 2013-03-20 | 2013-06-26 | 广东华美骏达电器有限公司 | Gas heater |
-
2015
- 2015-01-08 CN CN201510008378.0A patent/CN104676726B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007101815A1 (en) * | 2006-03-06 | 2007-09-13 | Gebr. Becker Gmbh | Method of operating a combined heat and power process and gas turbine building heating system |
| CN103175254A (en) * | 2013-03-20 | 2013-06-26 | 广东华美骏达电器有限公司 | Gas heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947300A (en) * | 2020-08-14 | 2020-11-17 | 山东华宇工学院 | Circulating heat exchange device and method for improving heat exchange efficiency |
| CN113739247A (en) * | 2021-09-30 | 2021-12-03 | 中山市傲的电器有限公司 | Gas warmer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104676726B (en) | 2017-03-15 |
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| C06 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG HMD ELECTRIC APPLIANCE CO., LTD. Free format text: FORMER OWNER: ZHANG JIANMING Effective date: 20150708 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150708 Address after: 528425 Guangdong city of Zhongshan Province Dongfeng Town Industrial Park, No. 1-1 fun Applicant after: Guangdong Huamei Junda Electric Appliances Co., Ltd. Address before: 528425 Guangdong city of Zhongshan province Dong Feng Zhen Dong Fu Road No. 68 Applicant before: Zhang Jianming |
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