CN210861032U - Novel low-nitrogen energy-saving steam generator - Google Patents
Novel low-nitrogen energy-saving steam generator Download PDFInfo
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- CN210861032U CN210861032U CN201920651861.4U CN201920651861U CN210861032U CN 210861032 U CN210861032 U CN 210861032U CN 201920651861 U CN201920651861 U CN 201920651861U CN 210861032 U CN210861032 U CN 210861032U
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Abstract
The utility model belongs to the technical field of the boiler and specifically relates to a novel low nitrogen energy-conserving steam generator, including coupling assembling and boiler subassembly, boiler subassembly include furnace, evenly distributed in the water-cooling of furnace inner wall presss from both sides the cover, is located a plurality of division boards in the water-cooling presss from both sides the cover, furnace include first lateral wall, with the second lateral wall of connection can be dismantled to first lateral wall, first lateral wall the second lateral wall internal surface all has the heat preservation. Through first lateral wall, the second lateral wall of dismantling the connection, make this steam generator have convenient maintenance, easy to assemble and the beneficial effect of dismantlement.
Description
Technical Field
The utility model belongs to the technical field of the boiler and specifically relates to a novel low nitrogen energy-conserving steam generator.
Background
The boiler in the prior art has the disadvantages of complex structure (including water wall tubes, large frames, evaporation heating surface tubes, economizers, superheaters, air preheaters and the like), complex operation flow, huge and complex installation equipment, air environment pollution, large raw material consumption, low heat utilization rate and large occupied space.
Referring to fig. 1, chinese utility model patent publication No. CN206989474U discloses an ultra-low nitrogen emission vacuum hot water boiler capable of effectively reducing nitrogen oxide emission, which comprises an ultra-low nitrogen burner, a gas distribution pipe, a furnace, a convection heat exchange pipe, a fin condensation pipe, a primary hot water medium, and an inner and outer spiral pipe set; wherein, the ultra-low nitrogen combustor is linked together with a gas distribution pipe, the convection current heat exchange tube is arranged at the combustion area of vacuum hot water boiler furnace with a set of, the regional condenser pipe that is a set of in convection current heat exchange tube rear, convection current heat exchange tube and condenser pipe are linked together with a hot media water, inside and outside spiral bank of tubes is located vacuum hot water boiler top.
The structure of the prior art is complex, the hearth is a whole and cannot be disassembled, and if the hearth breaks down, the maintenance is difficult.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel low nitrogen energy-saving steam generator who conveniently maintains, easy to assemble and dismantle.
For reaching above-mentioned advantage, the utility model provides a novel low nitrogen energy-conserving steam generator, including coupling assembling and boiler subassembly, boiler subassembly include furnace, evenly distributed in the water-cooling of furnace inner wall presss from both sides the cover, is located a plurality of division boards in the water-cooling presss from both sides the cover, furnace include first lateral wall, with the second lateral wall of connection can be dismantled to first lateral wall, first lateral wall the second lateral wall internal surface all has the heat preservation.
In an embodiment of the present invention, the first side wall and the second side wall each have a connecting portion extending outward, the connecting portion is provided with a screw hole, and the first side wall and the second side wall are fixed by a bolt.
The utility model discloses an in the embodiment, coupling assembling includes in proper order that mixes fan, regulator, first big end of a river, back in advance ware, second big end of a river, connecting pipe, with the even air chamber of connecting pipe intercommunication, even air chamber can with the furnace upper end is connected.
In an embodiment of the present invention, a first stage convection heating pipe and a second stage convection heating pipe are sequentially arranged between the partition plates from top to bottom, the first stage convection heating pipe and the second stage convection heating pipe are all communicated with the water cooling jacket, the upper end of the water cooling jacket is provided with a plurality of water cooling pipes, the outer wall of each water cooling pipe is provided with first fins extending along the length direction, and a "T" shaped gas baffle is arranged between the first fins.
In an embodiment of the utility model, the flue gas is the product of natural gas or liquefied gas and air mixture, the boiler subassembly is equipped with the combustion chamber that is used for the flue gas burning, and is adjacent the division board has can allow the flue gas to pass through the breach.
In an embodiment of the utility model, boiler subassembly lower extreme be equipped with collection petticoat pipe and with the play tobacco pipe of collection petticoat pipe intercommunication, it is equipped with anti-resonance gusset to go out the tobacco pipe.
In an embodiment of the present invention, the upper portion of the smoke collecting cover is provided with a condensing section convection pipe, and an outer wall of the condensing section convection pipe is provided with a third fin extending along the length direction.
The utility model discloses an in the embodiment, the condensation segment convection current pipe carries out the secondary exchange to the heat that the flue gas produced, the condensation segment convection current pipe is equipped with second water inlet, second delivery port.
In one embodiment of the present invention, one side of the lower end of the water-cooling jacket is provided with a first water inlet communicated with the second stage convection heating pipe, and the other side of the upper end of the water-cooling jacket is provided with a first water outlet communicated with the water-cooling pipe.
In an embodiment of the present invention, the first stage convection heating pipe and the second stage convection heating pipe are provided with second fins, and the first fins, the second fins and the third fins are all used for increasing the contact area during combustion and improving the heat exchange efficiency.
The utility model discloses in, through first lateral wall, the second lateral wall that can dismantle the connection, make this steam generator have convenient maintenance, easy to assemble and the beneficial effect who dismantles.
Drawings
Fig. 1 is a schematic view showing the structure of a prior art ultra-low nitrogen discharge vacuum hot water boiler.
Fig. 2 is a schematic structural diagram of a novel low-nitrogen energy-saving steam generator according to a first embodiment of the present invention.
Fig. 3 is a schematic sectional view of the novel low-nitrogen energy-saving steam generator shown in fig. 2.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description will be given with reference to the accompanying drawings and preferred embodiments in order to provide the best mode, structure, features and effects according to the present invention.
Referring to fig. 2 and 3, the novel low-nitrogen energy-saving steam generator of the first embodiment of the present invention includes a connection assembly 1 and a boiler assembly 2, wherein the connection assembly 1 includes a pre-mixing fan 11 for delivering air, a regulator 12 for regulating the air inflow of the pre-mixing fan 11, a first reducer 13, a post-pre-mixer 14 for delivering flue gas, a second reducer 15, a connection pipe 16, and a gas homogenizing chamber 17 communicated with the connection pipe 16. The premixing fan 11, the regulator 12, the first reducer 13, the rear premixer 14, the second reducer 15, the connecting pipe 16 and the air homogenizing chamber 17 are sequentially connected and fixed.
Boiler subassembly 2 includes furnace 21, evenly distributed in the water-cooling jacket 22 of furnace 21 inner wall, is located a plurality of division boards 23 of water-cooling jacket 22, and furnace 21 includes first lateral wall 211, the second lateral wall 212 of being connected with first lateral wall 211 can dismantle, and first lateral wall 211, second lateral wall 212 internal surface all have the heat preservation. The insulating layer is made of high-density fire-resistant aluminum silicate.
The first side wall 211 and the second side wall 212 each have a connecting portion 21a extending outward, the connecting portion 21a is provided with a screw hole 21b, and the first side wall 211 and the second side wall 212 are fixed by bolts.
A plurality of first-stage convection heating pipes 24 and second-stage convection heating pipes 25 are arranged between the partition plates 23, the first-stage convection heating pipes 24 and the second-stage convection heating pipes 25 are communicated with the water-cooling jacket 22, the boiler assembly 2 is provided with a combustion chamber 26 for flue gas combustion, the adjacent partition plates 23 are provided with gaps 231 allowing flue gas to pass through, the upper end of the water-cooling jacket 22 is provided with a plurality of water-cooling pipes 27, the combustion chamber 26 is positioned between the first-stage convection heating pipes 24 and the water-cooling pipes 27, the outer walls of the water-cooling pipes 27 are provided with first fins 271 extending along the length direction, and a T-shaped air baffle 272 is arranged between the adjacent water-cooling pipes 27. The flue gas is a product of mixing natural gas or liquefied gas with air. The T-shaped air baffle 272 is used for reducing the passing clearance of the flue gas, so that the flue gas enters the combustion chamber 26 more uniformly.
The first fins 271 of the water-cooling tubes 27 and the first fins 271 of the other water-cooling tubes 27 are provided with gaps capable of accommodating a T-shaped air baffle 272. The T-shaped gas baffle 272 also has the functions of uniformly distributing mixed gas and preventing tempering, and the combustion safety of post-premixing is ensured.
The space of the gas homogenizing chamber 17 comprehensively considers that the smoke can reach the ignition electrode point in the ignition time so as to ignite the smoke and ensure the 100 percent ignition success rate. The gas homogenizing chamber 17 is provided with a detachable gas homogenizing plate 171 for enabling the flue gas to uniformly pass through, so that the flue gas mixed in the mixer is conveniently mixed again in the gas homogenizing chamber 17 and uniformly distributed on the water cooling pipe 27, uniform combustion of a combustion surface is ensured, and NOx emission is reduced.
The lower end of the boiler component 2 is provided with a smoke collecting cover 3 and a smoke outlet pipe 31 communicated with the smoke collecting cover 3, a resonance-proof rib plate 32 is arranged in the smoke outlet pipe, and the resonance-proof rib plate 32 is used for preventing smoke from generating resonance with the body panel when the boiler runs. The upper part of the fume collecting hood 3 is provided with a condensing section convection pipe 7, and the outer wall of the condensing section convection pipe 7 is provided with a third fin 71 extending along the length direction. The condensing section convection pipe 7 exchanges heat generated by the flue gas for the second time, and the condensing section convection pipe 7 is provided with a second water inlet 72 and a second water outlet 73. The coolant flows from the second water inlet 72 to the second water outlet 73.
The boiler assembly 2 is also provided with an electrode rod 4 positioned in the combustion chamber 26, a flame detection rod 6 and a sight glass 5 positioned on the outer wall of the hearth 21. The electrode rod 4 is a two-stage ignition electrode, and the flame detection rod 6 is used for detecting the temperature of the flue gas during combustion.
A first water inlet 251 communicated with the second-stage convection heating pipe 25 is arranged on one side of the lower end of the water-cooling jacket 22, and a first water outlet 273 communicated with the water-cooling pipe 27 is arranged on the other side of the upper end of the water-cooling jacket 22.
The outer walls of the first-stage convection heating tube 24 and the second-stage convection heating tube 25 are respectively provided with a second fin 252, and the first fin 271, the second fin 252 and the third fin 71 are respectively used for increasing the contact area during combustion and improving the heat exchange efficiency.
In the using process, air is uniformly mixed with the flue gas to be combusted, which enters from the rear premixer 14, through the premixing fan 11 through the regulator 12 and then is sprayed into the square gas homogenizing chamber 17, the regulator 12 is used for regulating the air inflow of the premixing fan 11, and the flue gas entering from the premixing fan 11 and the rear premixer 14 is mixed again in the gas homogenizing chamber 17. The fully mixed flue gas passes through the gas homogenizing plate 171 and then uniformly contacts the outer surface of the water cooling tube 27 through the T-shaped gas baffle 272, then the flue gas enters the combustion chamber 26 for combustion, the flue gas electrode rod 4 is ignited, the generated heat is absorbed by the water cooling tube 27, the first-stage convection heating tube 24, the second-stage convection heating tube 25 and the water cooling jacket 22 on the inner wall of the boiler, the flue gas moves downwards in a first-stage and first-stage mode through the plurality of partition plates 23, the temperature is gradually reduced along with the movement of the flue gas, the preheating generated by the flue gas is further absorbed by the first-stage convection heating tube 24 and the second-stage convection heating tube 25 below the combustion chamber 26, and finally the waste gas or residue generated by the flue gas is discharged from the smoke outlet tube 31 to finish heat exchange.
Water for heat exchange flows upwards in a first stage after passing through a hot water inlet from a water-cooling jacket 22 at one side of the lower end to a second-stage convection heating pipe 25, and then is discharged from a hot water outlet through a first-stage convection heating pipe 24 and a water-cooling pipe 27.
The flue gas exchanges heat with high-temperature hot water generated by air in the hearth 21 in a mixed combustion mode, and the water is heated to become the high-temperature hot water with certain parameters.
A fan and flue gas post-premixing mode is adopted, an electric actuating mechanism is adopted between the premixing fan 11 and the post-premixer 14, stepless speed change is adopted for combustion, and the air electric actuating mechanism drives the flue gas electric actuating mechanism to adjust.
The utility model discloses in, through "T" style of calligraphy fender gas board 272 that is located between the adjacent water-cooled tube 27, make the flue gas evenly get into combustion chamber 26 and fully receive the surface contact with water-cooled tube 27, first order convection heating tube 24, second level convection heating tube 25 to improve the heat exchange rate when the flue gas burns, simultaneously "T" style of calligraphy fender gas board 272 still can prevent the tempering, this hot water unit has the beneficial effect that the heat exchange rate is high, the combustion is safe.
The utility model discloses in, through first lateral wall, the second lateral wall that can dismantle the connection, make this steam generator have convenient maintenance, easy to assemble and the beneficial effect who dismantles.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person can make modifications or changes equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are within the scope of the present invention.
Claims (10)
1. The utility model provides a novel low nitrogen energy-conserving steam generator, includes coupling assembling and boiler subassembly, its characterized in that, the boiler subassembly include furnace, evenly distributed in the water-cooling of furnace inner wall presss from both sides the cover, is located a plurality of division boards in the water-cooling presss from both sides the cover, furnace include first lateral wall, with the second lateral wall of connection can be dismantled to first lateral wall, first lateral wall second lateral wall internal surface all has the heat preservation.
2. The novel low-nitrogen energy-saving steam generator according to claim 1, wherein the first side wall and the second side wall are provided with connecting parts extending outwards, the connecting parts are provided with screw holes, and the first side wall and the second side wall are fixed through bolt connection.
3. The novel low-nitrogen energy-saving steam generator as claimed in claim 1, wherein the connecting assembly comprises a premixing fan, a regulator, a first reducer, a rear premixer, a second reducer, a connecting pipe, and a gas homogenizing chamber communicated with the connecting pipe in sequence, and the gas homogenizing chamber can be connected with the upper end of the hearth.
4. The novel low-nitrogen energy-saving steam generator according to claim 1, wherein a first-stage convection heating tube and a second-stage convection heating tube are sequentially arranged between the partition plates from top to bottom, the first-stage convection heating tube and the second-stage convection heating tube are both communicated with the water-cooling jacket, a plurality of water-cooling tubes are arranged at the upper end of the water-cooling jacket, first fins extending along the length direction are arranged on the outer walls of the water-cooling tubes, and a T-shaped gas baffle is arranged between the adjacent first fins.
5. The new low nitrogen energy saving steam generator of claim 1 wherein the flue gas is a mixture of natural gas or liquefied gas and air, the boiler assembly is provided with a combustion chamber for combustion of the flue gas, and the adjacent divider plates have gaps allowing the flue gas to pass through.
6. The novel low-nitrogen energy-saving steam generator according to claim 1, characterized in that the lower end of the boiler assembly is provided with a smoke collecting hood and a smoke outlet pipe communicated with the smoke collecting hood, and the smoke outlet pipe is provided with a resonance-proof rib plate.
7. The novel low-nitrogen energy-saving steam generator according to claim 6, wherein the upper part of the fume collecting hood is provided with a condensing section convection pipe, and the outer wall of the condensing section convection pipe is provided with a third fin extending along the length direction.
8. The novel low-nitrogen energy-saving steam generator according to claim 7, wherein the condensing section convection pipe performs secondary exchange on heat generated by flue gas, and is provided with a second water inlet and a second water outlet.
9. The novel low-nitrogen energy-saving steam generator as claimed in claim 4, wherein one side of the lower end of the water cooling jacket is provided with a first water inlet communicated with the second stage convection heating pipe, and the other side of the upper end of the water cooling jacket is provided with a first water outlet communicated with the water cooling pipe.
10. The novel low-nitrogen energy-saving steam generator according to claim 4, wherein the outer walls of the first stage convection heating pipe and the second stage convection heating pipe are provided with second fins.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920651861.4U CN210861032U (en) | 2019-05-08 | 2019-05-08 | Novel low-nitrogen energy-saving steam generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920651861.4U CN210861032U (en) | 2019-05-08 | 2019-05-08 | Novel low-nitrogen energy-saving steam generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780082A (en) * | 2020-07-14 | 2020-10-16 | 浙江君华世野新能源设备有限公司 | Steam generator system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780082A (en) * | 2020-07-14 | 2020-10-16 | 浙江君华世野新能源设备有限公司 | Steam generator system |
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