CN210861719U - Novel low-nitrogen energy-saving hot water unit - Google Patents
Novel low-nitrogen energy-saving hot water unit Download PDFInfo
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- CN210861719U CN210861719U CN201920651850.6U CN201920651850U CN210861719U CN 210861719 U CN210861719 U CN 210861719U CN 201920651850 U CN201920651850 U CN 201920651850U CN 210861719 U CN210861719 U CN 210861719U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The utility model belongs to the technical field of the boiler and specifically relates to a novel low nitrogen energy-conserving hot water unit, including coupling assembling and boiler subassembly, boiler subassembly includes that the water-cooling presss from both sides the cover, is located a plurality of division boards in the water-cooling presss from both sides the cover, the upper end that the water-cooling pressed from both sides the cover is equipped with a plurality of water-cooling pipes, the water-cooling pipe outer wall is equipped with along the first fin that length direction extended, and is adjacent be equipped with "T" style of calligraphy gas baffle between the first fin. The T-shaped gas baffle plate positioned between the adjacent water cooling tubes enables the flue gas to uniformly enter the combustion chamber and fully contact with the outer surfaces of the water cooling tubes, the first-stage convection heating surface light tube and the second-stage convection heating surface fin tube, so that the heat exchange rate of the flue gas during combustion is improved, meanwhile, the T-shaped gas baffle plate can also prevent backfire, and the water heating unit has the beneficial effects of high heat exchange rate and safe combustion.
Description
Technical Field
The utility model belongs to the technical field of the boiler and specifically relates to a novel low nitrogen energy-conserving hot water unit.
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 prior art has a complex structure, one flame is divided into a plurality of small flames through one fuel gas distribution pipe, and the heat exchange efficiency is not high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel low nitrogen energy-conserving hot water unit that heat exchange rate is high, the burning is safe.
For reaching above-mentioned advantage, the utility model provides a novel low nitrogen energy-conserving hot water unit, including coupling assembling and boiler subassembly, coupling assembling includes in proper order that mixes fan, regulator, first big end and small end, back premix ware, second big end and small end, connecting pipe, with the even air chamber of connecting pipe intercommunication, boiler subassembly includes the water-cooling jacket, is located a plurality of division boards in the water-cooling jacket be equipped with a plurality of first-order convection heating surface fluorescent lamps and second grade convection heating surface fin pipe between the division board, first-order convection heating surface fluorescent lamp second grade convection heating surface fin pipe all with the water-cooling jacket intercommunication, the upper end that the water-cooling jacket is equipped with a plurality of water-cooled tubes, the water-cooled tube outer wall is equipped with the first fin that extends along length direction, and is adjacent be equipped with "T" style of calligraphy air baffle between the first fin.
In an embodiment of the invention, the flue gas is a natural gas or a product of a mixture of liquefied gas and air, the boiler assembly is provided with a combustion chamber for combustion of the flue gas, adjacent the partition plate has a gap allowing the flue gas to pass through
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, be equipped with anti-resonance gusset in the play tobacco pipe.
In one embodiment of the present invention, the boiler assembly is further provided with an electrode rod and a flame detection rod located in the combustion chamber.
In an embodiment of the present invention, a hot water inlet communicated with the second stage convection heating surface finned tube is disposed on one side of the lower end of the water cooling jacket.
In one embodiment of the present invention, the other side of the upper end of the water-cooling jacket is provided with a hot water outlet communicated with the water-cooling pipe
In an embodiment of the present invention, a gap capable of accommodating the T-shaped gas baffle is provided between the first fin of the water-cooled tube and the first fin of the other water-cooled tube.
In an embodiment of the present invention, the second-stage convection heating surface fin tube outer wall is provided with a second fin, and the first fin and the second fin are both used for increasing the contact area during combustion and improving the heat exchange efficiency.
The utility model discloses in, through being located "T" style of calligraphy air baffle between the adjacent water-cooled tube, make the flue gas evenly get into the combustion chamber and fully receive the surface bare lamp, the second grade convection heating surface fin pipe surface contact with water-cooled tube, first order convection heating surface bare lamp to heat exchange rate when improving the flue gas burning, "T" style of calligraphy air baffle still can prevent the tempering simultaneously, and this hot water unit has the beneficial effect that the heat exchange rate is high, the combustion safety.
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 view of a novel low-nitrogen energy-saving hot water unit according to a first embodiment of the present invention.
Fig. 3 is a left side view of the novel low nitrogen energy saving hot water unit of fig. 2.
Fig. 4 is a partially enlarged schematic view of the novel low-nitrogen energy-saving hot water unit a 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, fig. 3 and fig. 4, the novel low-nitrogen energy-saving hot water unit according to 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 an air 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.
The boiler component 2 comprises a hearth 21, a water-cooling jacket 22 uniformly distributed on the inner wall of the hearth 21 and a plurality of partition plates 23 positioned in the water-cooling jacket 22, wherein a plurality of first-stage convection heating surface light pipes 24 and second-stage convection heating surface fin pipes 25 are arranged between the partition plates 23, the first-stage convection heating surface light pipes 24 and the second-stage convection heating surface fin pipes 25 are both communicated with the water-cooling jacket 22, the boiler component 2 is provided with a combustion chamber 26 for burning flue gas, the adjacent partition plates 23 are provided with gaps 231 allowing the 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 surface light 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. The smoke is a product of mixing natural gas or liquefied gas with air. The T-shaped baffle 272 is used to reduce the passing gap of the flue gas, so that the flue gas can enter 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 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.
One side of the lower end of the water cooling jacket 22 is provided with a hot water inlet 251 communicated with the second-stage convection heating surface finned tube 25, and the other side of the upper end of the water cooling jacket 22 is provided with a hot water outlet 273 communicated with the water cooling tube 27.
The outer wall of the second-stage convection heating surface fin tube 25 is provided with a second fin 252 for absorbing heat, and the first fin 271 and the second fin 252 are both 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 surface light pipe 24, the second-stage convection heating surface fin pipe 25 and the water cooling jacket 22 on the inner wall of the boiler, the flue gas moves downwards in a first-stage manner 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 surface light pipe 24 and the second-stage convection heating surface fin pipe 25 which are positioned below the combustion chamber 26, and finally the waste gas or residues generated by the flue gas are discharged through the smoke outlet pipe 31 to complete heat exchange.
Water for heat exchange flows upwards in the 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 surface fin tube 25, and then is discharged from a hot water outlet through a first stage convection heating surface light tube 24 and a water cooling tube 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.
The method adopts a fan and flue gas post-premixing mode, an electric actuating mechanism is adopted between a premixing fan 11 and a post-premixer 14, stepless speed change is adopted for combustion, and an air electric actuating mechanism drives a flue gas electric actuating mechanism to adjust
In the second embodiment of the present invention, the premixing fan 11 is used to transport the mixed flue gas to the uniform air chamber 17, and the back premixer 14 is used to transport air.
This embodiment compares the better mixed flue gas of first embodiment ability, and the burning is more abundant.
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 surface light pipe 24, the second grade convection heating surface fin pipe 25 surface contact with water-cooled tube 27, first order convection heating surface to the heat exchange rate when improving the flue gas burning, "T" style of calligraphy fender gas board 272 still can prevent the tempering simultaneously, this hot water unit has the beneficial effect that the heat exchange rate is high, the burning is safe.
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 (8)
1. The utility model provides a novel low nitrogen energy-conserving hot water unit, includes coupling assembling and boiler subassembly, coupling assembling includes in proper order that pre-mix fan, regulator, first big end and small end, back pre-mixer, second big end and small end, connecting pipe, with the even air chamber of connecting pipe intercommunication, a serial communication port, boiler subassembly includes the water-cooling jacket, is located a plurality of division boards in the water-cooling jacket be equipped with a plurality of first order convection heating surface fluorescent lamps and second level convection heating surface fin pipe between the division board, first order convection heating surface fluorescent lamp the second level convection heating surface fin pipe all with the water-cooling jacket intercommunication, the upper end of water-cooling jacket is equipped with a plurality of water-cooled tubes, the water-cooled tube outer wall is equipped with along the first fin of length direction extension, and is adjacent be equipped with "T" style of calligraphy air baffle between the first fin.
2. The novel low-nitrogen energy-saving hot water unit as claimed in 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 flue gas combustion, and the adjacent partition plates have gaps for allowing the flue gas to pass through.
3. The novel low-nitrogen energy-saving hot water unit according to claim 1, wherein a smoke collecting hood and a smoke outlet pipe communicated with the smoke collecting hood are arranged at the lower end of the boiler assembly, and a resonance-proof rib plate is arranged in the smoke outlet pipe.
4. The novel low-nitrogen energy-saving hot water unit as claimed in claim 2, wherein the boiler assembly is further provided with an electrode rod and a flame detection rod which are positioned in the combustion chamber.
5. The novel low-nitrogen energy-saving hot water unit as claimed in claim 1, wherein one side of the lower end of the water-cooling jacket is provided with a hot water inlet communicated with the second-stage convection heating surface finned tube.
6. The novel low-nitrogen energy-saving hot water unit as claimed in claim 1, wherein the other side of the upper end of the water-cooling jacket is provided with a hot water outlet communicated with the water-cooling pipe.
7. The novel low-nitrogen energy-saving hot water unit as claimed in claim 1, wherein a gap for accommodating the T-shaped gas baffle is provided between the first fin of the water-cooling pipe and the first fin of the other water-cooling pipe.
8. The novel low-nitrogen energy-saving hot water unit as claimed in claim 1, wherein the second-stage convection heating surface fin tube is provided with a second fin on the outer wall, and the first fin and the second fin are both used for increasing the contact area during combustion and improving the heat exchange efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920651850.6U CN210861719U (en) | 2019-05-08 | 2019-05-08 | Novel low-nitrogen energy-saving hot water unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920651850.6U CN210861719U (en) | 2019-05-08 | 2019-05-08 | Novel low-nitrogen energy-saving hot water unit |
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| CN210861719U true CN210861719U (en) | 2020-06-26 |
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| CN201920651850.6U Active CN210861719U (en) | 2019-05-08 | 2019-05-08 | Novel low-nitrogen energy-saving hot water unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776116A (en) * | 2021-08-19 | 2021-12-10 | 临沂恒源智能科技股份有限公司 | Circulation heating equipment |
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2019
- 2019-05-08 CN CN201920651850.6U patent/CN210861719U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776116A (en) * | 2021-08-19 | 2021-12-10 | 临沂恒源智能科技股份有限公司 | Circulation heating equipment |
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