CN202452688U - Smoke discharge tube for gas-fired heating and hot water boiler or gas water heater - Google Patents
Smoke discharge tube for gas-fired heating and hot water boiler or gas water heater Download PDFInfo
- Publication number
- CN202452688U CN202452688U CN2012200401836U CN201220040183U CN202452688U CN 202452688 U CN202452688 U CN 202452688U CN 2012200401836 U CN2012200401836 U CN 2012200401836U CN 201220040183 U CN201220040183 U CN 201220040183U CN 202452688 U CN202452688 U CN 202452688U
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- pipe
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- double
- straight pipe
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Abstract
The utility model provides a smoke discharge tube for a gas-fired heating and hot water boiler or gas water heater. The smoke discharge tube is a double-wall tube formed by abutting a double-wall straight tube and a double-wall bent tube. The double-wall bent tube comprises an outer bent tube and an inner bent tube fixed inside the same. The double-wall straight tube comprises an outer straight through tube and an inner straight through tube fixed inside the same. The inner straight through tube and the inner bent tube form an exhaust tube which is provided with an inner exhaust passage. The outer straight through tube and the outer bent tube form an outer casing. A gap between the exhaust tube and the outer casing forms an air inlet passage. The end of the inner straight through tube, which is far away from the inner bent tube, extends out of the outer straight through tube. A seal ring is disposed in a tail opening of the outer straight through tube so that the tail opening of the air inlet passage is closed. The tail section of the outer straight through tube, which is far away from the outer bent tube, is provided with a plurality of air inlets. The tail section of the inner straight through tube, which extends out of the outer straight through tube, is provided with a plurality of smoke outlets. The smoke outlets are at least 30mm away from the tail opening of the outer straight through tube. In cold weather, the smoke outlets are less easy to block due to freezing. The smoke discharge tube is suitable for northeast and northwest of China.
Description
Technical field
The utility model relates to gas-heating water heater or gas heater.
Background technology
The at present common gas-heating water heater or the smoke exhaust pipe of gas heater are as shown in Figure 1; It is the double-skin duct that is made up of double-deck bend pipe and the butt joint of double-deck straight tube; Double-deck bend pipe includes outer bend pipe 4 and the interior bend pipe 3 that is fixed in the outer bend pipe; Double-deck straight tube includes outer straight pipe 2 and the interior straight pipe 1 that is fixed in the outer straight pipe 2, and interior straight pipe 1 constitutes blast pipe with interior bend pipe 3, is exhaust passage 10 in the blast pipe; Outer straight pipe 2 constitutes outer tube with outer bend pipe 4; Gap between blast pipe and the outer tube is an inlet channel 20, and interior straight pipe 1 in outer straight pipe 2, is provided with the endcapped that a sealing ring 5 makes inlet channel 20 away from interior bend pipe 3 end overlength in the end port of outer straight pipe 2; Outer straight pipe 2 has several air admission holes 21 away from the latter end of outer bend pipe 4 is in communication with the outside inlet channel 20; Interior straight pipe 1 has several exhaust smoke holes 11 away from the latter end of interior bend pipe 3 is in communication with the outside discharge flue 10, and the flue gas that produces when gas water-heating furnace or water heater working is like this discharged through the discharge flue 10 of smoke exhaust pipe, in the inlet channel 20 entering stoves of the air that its burning simultaneously needs by smoke exhaust pipe.The overlength section of straight pipe 1 in the exhaust smoke hole 11 of this smoke exhaust pipe all is arranged at usually; First row's exhaust smoke hole 11 does not have distance with outer straight pipe 2 ends, though can shorten the length of smoke exhaust pipe like this, has but caused following problem: when outdoor temperature (usually occurring in the winter of China northeast and the Northwest) below-10 ℃ the time; The high-temperature flue gas (generally more than 100 ℃) of discharging from the exhaust smoke hole 11 of smoke exhaust pipe meets with back generation dewfall with extraneous Cryogenic air; The surface of the terminal edge 22 of straight pipe 2 and sealing ring 5 forms condensate and catches a cold icingly outside, along with the terminal edge 22 and the silver thaw on the sealing ring 5 of the outer straight pipe 2 of increase of exhaust smoke level are increasing, finally can block part exhaust smoke hole 11; Cause smoke evacuation not smooth; Be unfavorable for using, therefore, be necessary existing smoke exhaust pipe is improved.
Summary of the invention
The purpose of the utility model is to propose a kind of smoke exhaust pipe that is used for gas-heating water heater or gas heater, and the exhaust smoke hole of its discharge flue is not-easy-to-freeze blocking under low temperature environment, has the smooth and easy and characteristic of simple structure of smoke evacuation.
The purpose of the utility model can realize through following technical scheme:
The smoke exhaust pipe of a kind of gas-heating water heater or gas heater; It is the double-skin duct that is made up of double-deck straight tube and the butt joint of double-deck bend pipe; Said double-deck bend pipe includes outer bend pipe and the interior bend pipe that is fixed in the outer bend pipe, and double-deck straight tube includes outer straight pipe and the interior straight pipe that is fixed in the outer straight pipe, and interior straight pipe and interior bend pipe constitute blast pipe; In the blast pipe is the exhaust passage; Outer straight pipe and outer bend pipe formation outer tube, the gap between blast pipe and the outer tube is an inlet channel, interior straight pipe away from interior bend pipe end overlength in outer straight pipe; Be provided with the end port sealing that sealing ring makes inlet channel in the end port of outer straight pipe; Outer straight pipe has several air admission holes away from the latter end of outer bend pipe, and the latter end that interior straight pipe stretches out outer straight pipe has several exhaust smoke holes, and the end port that the head on the interior straight pipe arranges the outer straight pipe of exhaust smoke hole distance is 30mm at least.
In the technique scheme, said outer bend pipe can be 90 degree ripple bend pipes; The end port place of interior straight pipe also be provided with one have some exhaust smoke holes the taper protective cover.
The end away from outer straight pipe of the exhaust smoke hole appropriateness of the interior straight pipe of the utility model; Reduced the end that the high-temperature flue gas of discharging flows to outer straight pipe on the one hand; The silver thaw of straight pipe end is excessive outside avoiding under severe cold weather; Efficiently solve exhaust smoke hole and receive the silver thaw blocking problem, be unlikely to make the length of smoke exhaust pipe long on the other hand, avoid increasing the aesthetic property of cost of transportation and influence installation back exterior wall.
The utlity model has following substantive distinguishing features and progress:
1, under cold snap, the exhaust smoke hole of the utility model is difficult for being highly suitable for China northeast and the Northwest and using because of the blocking of freezing influences smoke discharging effect;
2, the utility model also has characteristics simple in structure, that be easy to produce.
Description of drawings
Fig. 1 is the structural representation of the smoke exhaust pipe of existing gas-heating water heater or gas heater.
Fig. 2 is a kind of structural representation of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Embodiment
With reference to figure 2, the smoke exhaust pipe of a kind of gas-heating water heater or gas heater, it is the double-skin duct that is made up of double-deck straight tube and the butt joint of double-deck bend pipe; Said double-deck bend pipe includes outer bend pipe 4 and the interior bend pipe 3 that is fixed in the outer bend pipe 4; Outer bend pipe 4 is 90 degree ripple bend pipes, and said double-deck straight tube includes outer straight pipe 2 and the interior straight pipe 1 that is fixed in the outer straight pipe 2, and interior straight pipe 1 constitutes blast pipe with interior bend pipe 3; In the blast pipe is exhaust passage 10; Outer straight pipe 2 and outer bend pipe 4 formation outer tubes, the gap between blast pipe and the outer tube is an inlet channel 20, interior straight pipe 1 away from interior bend pipe 3 end overlength in outer straight pipe 2; Be provided with the end port sealing that sealing ring 5 makes inlet channel 20 in the end port of outer straight pipe 2; Outer straight pipe 2 evenly has several air admission holes 21 away from the latter end of outer bend pipe 4, and the latter end that interior straight pipe 1 stretches out outer straight pipe 2 evenly has several exhaust smoke holes 11, and the end port distance L that the head on the interior straight pipe 1 arranges exhaust smoke hole 11 and outer straight pipe 2 is 40mm; Be provided with a taper protective cover 6 in the end port of interior straight pipe 1, also have some exhaust smoke holes on the taper protective cover 6.
In the present embodiment, exhaust smoke hole 11 is suitably away from the terminal edge 22 and the sealing ring 5 of outer straight pipe 2, and the silver thaw that efficiently solves outer straight pipe end under the cold snap stops up the problem of exhaust smoke hole, is very suitable for China northeast and the Northwest and uses.
Claims (3)
1. smoke exhaust pipe that is used for gas-heating water heater or gas heater; It is the double-skin duct that is made up of double-deck straight tube and the butt joint of double-deck bend pipe; Said double-deck bend pipe includes outer bend pipe (4) and is fixed in the interior bend pipe (3) in the outer bend pipe (4); Double-deck straight tube includes outer straight pipe (2) and is fixed in the interior straight pipe (1) in the outer straight pipe (2); Interior straight pipe (1) and interior bend pipe (3) constitute blast pipe, are exhaust passage (10) in the blast pipe, and outer straight pipe (2) and outer bend pipe (4) constitute outer tube; Gap between blast pipe and the outer tube is inlet channel (20); Interior straight pipe (1) in outer straight pipe (2), is provided with the end port sealing that sealing ring (5) makes inlet channel (20) away from interior bend pipe (3) end overlength in the end port of outer straight pipe (2), outer straight pipe (2) has several air admission holes (21) away from the latter end of outer bend pipe (4); The latter end that interior straight pipe (1) stretches out outer straight pipe (2) has several exhaust smoke holes (11), it is characterized in that: exhaust smoke hole (11) on the interior straight pipe (1) and the end port of outer straight pipe (2) distance (L) be 30mm at least.
2. the smoke exhaust pipe of gas-heating water heater according to claim 1 or gas heater is characterized in that: said outer bend pipe (4) is 90 degree ripple bend pipes.
3. the smoke exhaust pipe of gas-heating water heater according to claim 1 and 2 or gas heater is characterized in that: be provided with a taper protective cover (6) in the end port of interior straight pipe (1), the taper protective cover also has some exhaust smoke holes on (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200401836U CN202452688U (en) | 2012-02-06 | 2012-02-06 | Smoke discharge tube for gas-fired heating and hot water boiler or gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200401836U CN202452688U (en) | 2012-02-06 | 2012-02-06 | Smoke discharge tube for gas-fired heating and hot water boiler or gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202452688U true CN202452688U (en) | 2012-09-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200401836U Expired - Fee Related CN202452688U (en) | 2012-02-06 | 2012-02-06 | Smoke discharge tube for gas-fired heating and hot water boiler or gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202452688U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402746A (en) * | 2015-12-24 | 2016-03-16 | 哈尔滨锅炉厂有限责任公司 | Membrane type wall tube screen tube-bending device for forming smoke exhaust opening and smoke gas mixing method |
| CN110895043A (en) * | 2019-11-25 | 2020-03-20 | 华帝股份有限公司 | Smoke collecting hood with heating device and gas water heater using same |
| CN111365845A (en) * | 2020-02-13 | 2020-07-03 | 青岛经济技术开发区海尔热水器有限公司 | Flue subassembly and gas heater |
-
2012
- 2012-02-06 CN CN2012200401836U patent/CN202452688U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402746A (en) * | 2015-12-24 | 2016-03-16 | 哈尔滨锅炉厂有限责任公司 | Membrane type wall tube screen tube-bending device for forming smoke exhaust opening and smoke gas mixing method |
| CN105402746B (en) * | 2015-12-24 | 2018-04-27 | 哈尔滨锅炉厂有限责任公司 | Membrane panel smoking mouth swan neck system and mixed flue gas method |
| CN110895043A (en) * | 2019-11-25 | 2020-03-20 | 华帝股份有限公司 | Smoke collecting hood with heating device and gas water heater using same |
| CN111365845A (en) * | 2020-02-13 | 2020-07-03 | 青岛经济技术开发区海尔热水器有限公司 | Flue subassembly and gas heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510760, No. two, 3, Cang Lian Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee after: Guangzhou Addison Home Environment Technology Co., Ltd. Address before: 510760, No. two, 3, Cang Lian Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee before: Guangzhou Devotion Domestic Boilers Manufacturing Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20210206 |