CN2387459Y - Scale-less hot water boiler using fuel oil and gas - Google Patents
Scale-less hot water boiler using fuel oil and gas Download PDFInfo
- Publication number
- CN2387459Y CN2387459Y CN 99234824 CN99234824U CN2387459Y CN 2387459 Y CN2387459 Y CN 2387459Y CN 99234824 CN99234824 CN 99234824 CN 99234824 U CN99234824 U CN 99234824U CN 2387459 Y CN2387459 Y CN 2387459Y
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- boiler
- drum
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- tube
- gas
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Abstract
The utility model relates to a scale-less hot water boiler using fuel oil and gas, which is composed of a boiler drum, a boiler liner, front and back tube sheets, front and back smoke boxes, thread smoke tube, thread heat exchange tube, front and back collection boxes, etc., wherein, the thread heat exchange tube is transversely arranged on the boiler liner and is connected with the front and back collection boxes. The water in the boiler drum is heated to boil away, and the heat is transferred to the circulating water in the thread heat exchange tube by coagulation and heat release. According to a heat tube principle, the boiler actualizes a two-way water circulation system. The hot water boiler using fuel oil and gas thoroughly solves the problems that the heated surface of the existing boiler is scaled and has oxygen corrosion.
Description
The utility model belongs to industrial hot water boiler's technical field, relates in particular to a kind of fuel-firing gas-firing hot-water boiler.
At present, the circulation theory that domestic and international existing fuel-firing gas-firing hot-water boiler generally adopts is: the heat supply network backwater is directly sent in the boiler by the water circulating pump in the system, and these recirculated waters absorb heat to heat up in boiler and reach rated temperature, are sent to the user again.This boiler all enters again in the boiler because quantity of circulating water is very big, therefore, is in operation, and the heating surface fouling of boiler is serious, and not only influence is conducted heat, and jeopardizes boiler safety, and accident frequently takes place.Also exist the oxygen corrosion that is difficult to overcome simultaneously, shortened boiler life greatly.
The purpose of this utility model is to provide a kind of fuel-firing gas-firing not have dirty hot-water boiler, with existing fuel-firing gas-firing hot-water boiler heating surface fouling of thorough solution and oxygen corrosion problem.
For achieving the above object, the employing technical scheme is as follows: fuel-firing gas-firing does not have dirty hot-water boiler, contain burner, flue, drum, front tube sheet, back tube sheet, threaded flue, front smoke box, back smoke box, drum is between the tube sheet of front and back, flue is positioned at drum inside, link to each other with the front and back tube sheet, the drum both sides are respectively front smoke box, back smoke box, threaded flue crosses drum and is communicated with the front and back smoke box, the heat exchanger tube that horizontally set is particularly arranged above the inner flue of drum, heat exchanger tube links to each other with the front and back tube sheet, and be arranged on before and after front and back collection box in the smoke box is communicated with, outlet pipe and return pipe communicate with back collection box.
Below in conjunction with the embodiment accompanying drawing the utility model is described in detail.
Fig. 1 does not have the structural representation of dirty hot-water boiler for fuel-firing gas-firing.
By Fig. 1, fuel-firing gas-firing does not have dirty hot-water boiler by drum (1), flue (2), front tube sheet (3), back tube sheet (4), threaded flue (5), screw thread heat exchanger tube (6), preceding collection box (7), back collection box (8), front smoke box (9), back smoke box (10), burner (11), outlet pipe (12), return pipe (13) is formed, front tube sheet (3) links by drum (1) with back tube sheet (4), tube sheet (3) before and after drum (1) is positioned at, (4) between, flue (2) is positioned at drum (1) inside, and link to each other with front tube sheet (3), before threaded flue (5) crosses drum (1) connection, back tube sheet, and with front and back smoke box (9), (10) communicate.Screw thread heat exchanger tube (6) is horizontally installed on the vapor space on flue (2) top, links to each other with front and back tube sheet (3), (4), and is communicated with front and back collection box (7), (8).Outlet pipe (12) and return pipe (13) communicate with back collection box (8).
The utility model is based on heat pipe principle, whole oil-burning gas-fired boiler is considered as a heat pipe, flue of boiler (2) and threaded flue (5) are considered as the bringing-up section of heat pipe, the screw thread heat exchanger tube (6) that drum (1) top vapor space is arranged is considered as the cooling section of heat pipe, and the stove water in the drum is considered as the working medium of heat pipe.Stove water is inhaled temperature rise heat in bringing-up section, reach vaporization, steam is pooled to the vapor space on drum (1) top, by condensation heat with the recirculated water in the heat transferred screw thread heat exchanger tube (6), condensate water continues the heating vaporization owing to the gravity effect converges in bringing-up section, the heat supply network backwater enters back collection box (8) by return pipe (13) and enters heat absorption in the screw thread heat exchanger tube (6) again, reaches rated temperature and is sent to the heat supply network user by outlet pipe (12).The operating pressure that changes boiler can change the output temperature of hot water.
Stove water in the boiler belongs to disposable adding, boiler is in operation stove water owing to be isolated from the outside and do not lose substantially, therefore, all the time have only these water in the boiler in work, because these water number amounts are limited, the total amount of the scale forming matter in the water also is limited so, as long as boiler is done an amount of blowdown at initial operating stage, can think that the stove water in the boiler has been pure water, therefore, boiler is in operation not fouling again.
As everyone knows, the oxygen content in the water and the temperature of water have much relations, and water temperature is high more, and the oxygen content in the water is low more.Because the stove water conservancy project is made temperature more than 105 ℃ in the boiler, and in saturation state, the oxygen content in the water is extremely low, can not form corrosion to boiler.
The utility model has thoroughly solved the problem of easy fouling of fuel-firing gas-firing hot-water boiler and oxygen corrosion.
Claims (2)
1, fuel-firing gas-firing does not have dirty hot-water boiler, contain burner, flue, drum, front tube sheet, back tube sheet, threaded flue, front smoke box, back smoke box, drum is between the tube sheet of front and back, flue is positioned at drum inside, link to each other with the front and back tube sheet, the drum both sides are respectively front smoke box, back smoke box, threaded flue crosses drum and is communicated with the front and back smoke box, it is characterized in that above the inner flue of drum, having the heat exchanger tube of horizontally set, heat exchanger tube links to each other with the front and back tube sheet, and be arranged on before and after front and back collection box in the smoke box is communicated with, outlet pipe and return pipe communicate with back collection box.
2, fuel-firing gas-firing as claimed in claim 1 does not have dirty hot-water boiler, it is characterized in that heat exchanger tube is the screw thread heat exchanger tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234824 CN2387459Y (en) | 1999-07-23 | 1999-07-23 | Scale-less hot water boiler using fuel oil and gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234824 CN2387459Y (en) | 1999-07-23 | 1999-07-23 | Scale-less hot water boiler using fuel oil and gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2387459Y true CN2387459Y (en) | 2000-07-12 |
Family
ID=34022907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99234824 Expired - Fee Related CN2387459Y (en) | 1999-07-23 | 1999-07-23 | Scale-less hot water boiler using fuel oil and gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2387459Y (en) |
-
1999
- 1999-07-23 CN CN 99234824 patent/CN2387459Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |