CN203687344U - Bottom supported single-channel fuel and gas corner tube hot water boiler - Google Patents
Bottom supported single-channel fuel and gas corner tube hot water boiler Download PDFInfo
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- CN203687344U CN203687344U CN201420044627.2U CN201420044627U CN203687344U CN 203687344 U CN203687344 U CN 203687344U CN 201420044627 U CN201420044627 U CN 201420044627U CN 203687344 U CN203687344 U CN 203687344U
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Abstract
The utility model discloses a bottom supported single-channel fuel and gas corner tube hot water boiler which is unique and compact in structure, free of supporting by a steel frame or suspension, free of a boiler drum, a convection tube bundle and an economizer, low in metal consumption and good in energy-saving and environment-friendly performance. The bottom supported single-channel fuel and gas corner tube hot water boiler comprises a corner tube frame, a hearth, a flue, an inlet collecting box, middle headers and an outlet collecting box. The corner tube frame is longitudinally arranged, and a plurality of bottom supported feet are arranged at the lower end of the corner tube frame; the hearth and the flue are fixedly welded to the corner tube frame, an integral single channel is formed by upper film type walls, lower film type walls, left film type walls and right film type walls, and the hearth and the flue are cross-section-variable constant-speed channels. A high temperature heated surface composed of a plurality of high temperature heated surface modules, an intermediate temperature heated surface composed of a plurality of intermediate temperature heated surface modules, and a low temperature heated surface composed of a plurality of low temperature heated surface modules are sequentially arranged in the flue. The inlet collecting box and the outlet collecting box are arranged below a smoke outlet of the flue and above the tail of the hearth in a one-to-one corresponding mode.
Description
Technical field
The utility model relates to a kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler.
Background technology
The energy is the important substance basis that human society is depended on for existence and development.China " 12 " energy development target of issuing in October, 2012 according to National Energy Board, China will implement Energy consumption intensity and total quantity consumed dual control system, accelerate energy structure optimizing process.Therefore energy-saving and emission-reduction have become the common task of entire society.According to the prevention and control of air pollution action plan that in September, 2013, State Council just promulgated, accelerate clean energy resource and substitute utilization, strengthen natural gas, coal gas, coal bed gas supply.For this reason, the coal of boiler changes gas and becomes the Important Action that China's present stage improvement ambient air pollutes.
Fired gas-fired hot water boiler refers to that the heat of combustible gas or oil generation after burning produces the boiler of hot water for heating water.Existing fired gas-fired hot water boiler is mostly SZS series oil burning boiler and WNS series.SNS series of heat homogeneous solution-type reactor is the water-tube steam boiler of a kind of pair of drum, longitudinal, the burning of pressure-fired chamber, this boiler adopts D type to arrange, upper and lower drum is longitudinally to arrange, flue gas flow partition wall is film-type water-cooling tube wall, what boiler left side was arranged is convection bank, to the boiler with superheater, superheater is arranged in stockhole turning area.Its primary structure of WNS series of heat homogeneous solution-type reactor by shell, flue, turn smoke-box, smoke pipe etc. and form, flue is corrugated internal furnace; Between shell and tube sheet, adopt round steel cable-stayed support, between return combustion chamber and back tube sheet, adopt the reinforcement in addition of short stay bolt bar.There is the problem that steel consumption is large, cost is high, structure is loaded down with trivial details, the thermal efficiency is not high in these fired gas-fired hot water boilers.
Utility model content
The purpose of this utility model is to overcome the defect of prior art and a kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler is provided, and its structure uniqueness, compactness support or suspention without steelframe, and metal consumption is low, and energy-conserving and environment-protective performance is good.
The purpose of this utility model is achieved in that a kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, comprise cornue frame, burner hearth, flue, high-temperature surface, middle temperature heating surface, low temperature heating surface, import header, some intermediate headers and outlet header, wherein
Described cornue frame longitudinally arranges and lower end arranges several self-supporting pin;
Described burner hearth and flue are welded in described cornue frame, and described burner hearth and flue form holistic single channel by upper and lower membrane wall and left and right membrane wall, and described burner hearth and flue are variable cross-section uniform flow passage;
Described high-temperature surface, middle temperature heating surface and low temperature heating surface are in A-P is arranged in described flue successively; Described high-temperature surface is made up of several high-temperature surface modules, and described middle temperature heating surface is made up of warm heating surface module in several, and described low temperature heating surface is made up of several low temperature heating surface modules;
Described import header and outlet header are arranged in the below of exhanst gas outlet and the afterbody of the described burner hearth top of described flue correspondingly;
Described intermediate header is arranged between described high-temperature surface and middle temperature heating surface, between described middle temperature heating surface and described low temperature heating surface and between described low temperature heating surface and the afterbody of described flue;
The flue gas of described hot-water boiler is single channel flow process, be that fuel and air carry out mixed combustion by burner, in described burner hearth, produce thermal-flame and flue gas, high-temperature flue gas leaves described flue through exhanst gas outlet after entering successively described high-temperature surface, middle temperature heating surface, low temperature heating surface, enter atmosphere finally by chimney, exhaust gas temperature is 70 DEG C～150 DEG C;
The water circulation of described hot-water boiler is forced circulation, the backwater that is user enters the upper of boiler tail after circulating pump pressurization, lower membrane wall header, then along upper, lower membrane wall flows to the upper of boiler front end, lower membrane wall header, then uniform distribution is given left, right membrane wall upper, lower header, through a left side, after right membrane wall heat exchange, arrive the intermediate header between described low temperature heating surface and the afterbody of described flue, distribute to described import header through hot water inlet tube again, then the low temperature heating surface of flowing through successively, middle temperature heating surface, after high-temperature surface, enter described outlet header, complete the heating process of recirculated water.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, the variable cross-section uniform flow passage of described burner hearth and flue is to be made up of the described upper membrane wall of the described lower membrane wall of facing structure directly, left and right membrane wall and right and wrong structure.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, described high-temperature surface module adopts light pipe to make, and described middle temperature heating surface module and described low temperature heating surface module all adopt the pipe of band expansion heating face to form.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, the pipe of described band expansion heating face comprises light pipe, spiral fin coil, H type finned tube, extended surface tube, tooth punching finned tube.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, described exhanst gas outlet is also arranged air preheater.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, the front portion of the upper and lower header of described left and right membrane wall is provided with partition apparatus.
The feature of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present utility model is:
1. whole boiler is supported and is strengthened by self cornue frame and self-supporting pin, support or suspention without steelframe, heating surface characteristics of compact layout, without drum, convection bank and economizer, metal consumption is low, and flue gas resistance is little, floor space little and reduce factory building height, compare with other pattern boiler of same initial conditions, steel consumption reduces more than 15%;
2. three of boiler heating surfaces all adopt modularized design, can do according to demand to increase and decrease, and centering temperature or low-temperature heat exchange face employing extended surface, to compare with other pattern boiler of same initial conditions, steel consumption reduces more than 15%;
3. the smoke flow channels of boiler adopts the single channel design of uniform flow, has effectively strengthened the heat exchange efficiency of heating surface, compares with other pattern boiler of same initial conditions, and steel consumption reduces more than 10%.
Brief description of the drawings
Fig. 1 is the structural representation of self-bearing type fuel-firing gas-firing corner-tube hot-water boiler of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 1, self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present utility model, comprise cornue frame 1, burner hearth 2, flue 3, burner 30, high-temperature surface 31, middle temperature heating surface 32, low temperature heating surface 33, import header 4, outlet header 5, some intermediate headers 6 and partition apparatus 7, wherein:
Cornue frame 1 longitudinally arranges, the bottom of this cornue frame 1 arranges several self-supporting pin 8;
High-temperature surface 31, middle temperature heating surface 32 and low temperature heating surface 33 are in A-P is arranged in flue 3 successively; High-temperature surface 31 is formed by several high-temperature surface module assembleds, and high-temperature surface module adopts light pipe to make; Middle temperature heating surface 32 is formed by warm heating surface module assembled in several, and low temperature heating surface 33 is formed by several low temperature heating surface module assembleds; Middle temperature heating surface module and low temperature heating surface module all adopt the pipe of the band expansion heating face that comprises light pipe, spiral fin coil, H type finned tube, extended surface tube and tooth punching finned tube to form;
The flue gas flow of hot-water boiler is that single channel flows, be that fuel and air carry out mixed combustion by burner 3, at the interior generation thermal-flame of burner hearth 2 and flue gas, high-temperature flue gas leaves flue 3 through exhanst gas outlet 34 after entering successively high-temperature surface 31, middle temperature heating surface 32, low temperature heating surface 33, enter atmosphere finally by chimney, exhaust gas temperature is 70 DEG C～150 DEG C;
The water circulation of hot-water boiler is forced circulation, the backwater that is user enters the upper of boiler tail after circulating pump pressurization, lower membrane wall 21, 22 header, flow to again the upper of boiler front end, lower membrane wall 21, 22 header, then uniform distribution is given left, right membrane wall 23, 24 upper, lower header, through a left side, right membrane wall 23, after 24 heat exchange, arrive the intermediate header 6 between low temperature heating surface 33 and the afterbody of flue 3, distribute to import header 4 through hot water inlet tube 9 again, then the low temperature heating surface 33 of flowing through successively, middle temperature heating surface 32, the laggard inlet/outlet header 5 of high-temperature surface 33, complete the heating process of recirculated water.
Execute in example at one, the variable cross-section uniform flow passage of burner hearth 2 and flue 3 is to be made up of the upper membrane wall 21 of the lower membrane wall 22 of facing structure directly, left and right membrane wall 23,24 and right and wrong structure, the structure that the present embodiment adopts cross section, the cross section of high-temperature surface 31, the cross section of middle temperature heating surface 32 and the cross section of low temperature heating surface 33 of burner hearth 2 to diminish gradually, making the flow process of the exhanst gas outlet 34 of flue gas from burner hearth 2 to flue 3 is uniform flow.
The design feature of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present utility model is: be welded into an overall cornue frame structure by cornue frame 1, the lower membrane wall 22 that forms burner hearth 2 and flue 3, right membrane wall 24, left membrane wall 23 and upper membrane wall 21, partition apparatus 7, self-supporting pin 8, high-temperature surface 31, middle temperature heating surface 32, low temperature heating surface 33, import header 4, outlet header 5, exhanst gas outlet 34, hot water inlet tube 9, intermediate header 6, whole boiler only need support by self-supporting pin 8;
The technical characterstic of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present utility model is:
1. burner hearth and flue are single pass full film water cold wall structure, high, in low heating surface characteristics of compact layout, without drum, convection bank and economizer, therefore there is the feature that metal consumption is low, flue gas resistance is little, floor space is little and reduce factory building height;
2. boiler adopts self-bearing type supporting construction, supports without steelframe;
3. the burner hearth of boiler and flue form an overall single channel structure by fin panel casing, make the expansion direction of boiler consistent;
4. the water circulation of boiler is forced circulation, and the line clear of water circulation is reasonable, makes the heat exchange of boiler reach optimum efficiency;
5. the burner hearth of boiler is made up of fin panel casing, and good seal performance can ensure boiler pressure-fired, low NOx combustion;
6. the high, medium and low temperature heating surface of boiler all adopts modularized design, can do according to demand to increase and decrease;
7. the high, medium and low temperature heating surface of boiler adopts the design of variable cross-section uniform flow and arranges along the flow direction of flue gas, makes the heat transfer of high, medium and low temperature heating surface even.
In addition, the temperature while discharge from flue due to flue gas is still higher, arranges air preheater in the tail flue gas outlet of flue, can absorb the heat of flue gas, reduces the exhaust gas temperature of flue gas, has saved the energy, has improved heat exchange efficiency.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that not departing from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (6)
1. a self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, comprises cornue frame, burner hearth, flue, high-temperature surface, middle temperature heating surface, low temperature heating surface, import header, some intermediate headers and outlet header, it is characterized in that,
Described cornue frame longitudinally arranges and lower end arranges several self-supporting pin;
Described burner hearth and flue are welded in described cornue frame, and described burner hearth and flue form holistic single channel by upper and lower membrane wall and left and right membrane wall, and described burner hearth and flue are variable cross-section uniform flow passage;
Described high-temperature surface, middle temperature heating surface and low temperature heating surface are in A-P is arranged in described flue successively; Described high-temperature surface is made up of several high-temperature surface modules, and described middle temperature heating surface is made up of warm heating surface module in several, and described low temperature heating surface is made up of several low temperature heating surface modules;
Described import header and outlet header are arranged in the below of exhanst gas outlet and the afterbody of the described burner hearth top of described flue correspondingly;
Described intermediate header is arranged between described high-temperature surface and middle temperature heating surface, between described middle temperature heating surface and described low temperature heating surface and between described low temperature heating surface and the afterbody of described flue;
The flue gas of described hot-water boiler is single channel flow process, be that fuel and air carry out mixed combustion by burner, in described burner hearth, produce thermal-flame and flue gas, high-temperature flue gas leaves described flue through exhanst gas outlet after entering successively described high-temperature surface, middle temperature heating surface, low temperature heating surface, enter atmosphere finally by chimney, exhaust gas temperature is 70 DEG C～150 DEG C;
The water circulation of described hot-water boiler is forced circulation, the backwater that is user enters the upper of boiler tail after circulating pump pressurization, lower membrane wall header, then along upper, lower membrane wall flows to the upper of boiler front end, lower membrane wall header, then uniform distribution is given left, right membrane wall upper, lower header, through a left side, after right membrane wall heat exchange, arrive the intermediate header between described low temperature heating surface and the afterbody of described flue, distribute to described import header through hot water inlet tube again, then the low temperature heating surface of flowing through successively, middle temperature heating surface, after high-temperature surface, enter described outlet header, complete the heating process of recirculated water.
2. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, it is characterized in that, the variable cross-section uniform flow passage of described burner hearth and flue is to be made up of the described upper membrane wall of the described lower membrane wall of facing structure directly, left and right membrane wall and right and wrong structure.
3. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, it is characterized in that, described high-temperature surface module adopts light pipe to make, and described middle temperature heating surface module and described low temperature heating surface module all adopt the pipe of band expansion heating face to form.
4. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 3, is characterized in that, the pipe of described band expansion heating face comprises light pipe, spiral fin coil, H type finned tube, extended surface tube, tooth punching finned tube.
5. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, is characterized in that, described exhanst gas outlet is also arranged air preheater.
6. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, is characterized in that, the front portion of the upper and lower header of described left and right membrane wall is provided with partition apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044627.2U CN203687344U (en) | 2014-01-24 | 2014-01-24 | Bottom supported single-channel fuel and gas corner tube hot water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044627.2U CN203687344U (en) | 2014-01-24 | 2014-01-24 | Bottom supported single-channel fuel and gas corner tube hot water boiler |
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| Publication Number | Publication Date |
|---|---|
| CN203687344U true CN203687344U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420044627.2U Withdrawn - After Issue CN203687344U (en) | 2014-01-24 | 2014-01-24 | Bottom supported single-channel fuel and gas corner tube hot water boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743095A (en) * | 2014-01-24 | 2014-04-23 | 上海工业锅炉研究所 | Self-supporting single-channel fuel oil/gas corner tube type hot water boiler |
-
2014
- 2014-01-24 CN CN201420044627.2U patent/CN203687344U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743095A (en) * | 2014-01-24 | 2014-04-23 | 上海工业锅炉研究所 | Self-supporting single-channel fuel oil/gas corner tube type hot water boiler |
| CN103743095B (en) * | 2014-01-24 | 2016-03-30 | 上海工业锅炉研究所 | A kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |