CN221036214U - Low-nitrogen condensing vacuum boiler with threaded smoke pipe and corrugated furnace pipe structure - Google Patents
Low-nitrogen condensing vacuum boiler with threaded smoke pipe and corrugated furnace pipe structure Download PDFInfo
- Publication number
- CN221036214U CN221036214U CN202322774869.9U CN202322774869U CN221036214U CN 221036214 U CN221036214 U CN 221036214U CN 202322774869 U CN202322774869 U CN 202322774869U CN 221036214 U CN221036214 U CN 221036214U
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- China
- Prior art keywords
- pipe
- furnace
- corrugated
- furnace body
- vacuum boiler
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- 239000000779 smoke Substances 0.000 title claims abstract description 58
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 241000208125 Nicotiana Species 0.000 claims description 20
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 20
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 239000000523 sample Substances 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- 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]
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the technical field of boilers, in particular to a low-nitrogen condensing vacuum boiler with a threaded smoke pipe and corrugated furnace pipe structure, which comprises a furnace body, wherein a corrugated furnace pipe is arranged below the inner part of the furnace body, a plurality of heat exchange pipes are arranged above the inner part of the furnace body, one end of the corrugated furnace pipe is connected with a backfire chamber, one side of the corrugated furnace pipe is provided with a second return smoke pipe, the upper part of the corrugated furnace pipe is provided with a third return smoke pipe, one end of the second return smoke pipe is connected with the backfire chamber, the other end of the second return smoke pipe is connected with one end of the third return smoke pipe, the other end of the third return smoke pipe is connected with a connecting flue, and the top of the connecting flue is connected with a condenser. In the low-nitrogen condensing vacuum boiler with the screw smoke pipe and corrugated furnace pipe structure, the contact area with water in the boiler body can be increased through the corrugated furnace pipe arranged in the low-nitrogen condensing vacuum boiler, and the contact area between the smoke pipe and water can be increased through the screw smoke pipe structural design of the second return smoke pipe and the third return smoke pipe, so that the heat exchange effect is improved.
Description
Technical Field
The utility model relates to the technical field of boilers, in particular to a low-nitrogen condensing vacuum boiler with a threaded smoke tube and corrugated furnace structure.
The existing low-nitrogen condensing vacuum boiler is insufficient in fuel combustion when in use, the heating areas of the smoke tube and the boiler liner are limited, so that smoke cannot be fully utilized, certain energy is wasted, the distance of the smoke tube is shorter, and the smoke tube does not have enough time to contact with water when flowing, so that the heating effect of water is not good.
Background
The vacuum boiler is a vacuum environment formed by negative pressure in a closed furnace body, and the furnace body is filled with heat medium water. The heat medium water is heated by the combustion of the burner, steam is generated by heating the heat medium water, and the steam is used for heating the water in the pipes in the heat exchanger device by condensation heat exchange, so that the supply of hot water is realized.
Disclosure of utility model
The utility model aims to provide a low-nitrogen condensing vacuum boiler with a threaded smoke pipe and corrugated furnace pipe structure, which solves the problems in the prior art.
In order to achieve the above purpose, the utility model provides a low-nitrogen condensing vacuum boiler with a threaded smoke pipe and corrugated furnace pipe structure, which comprises a furnace body, wherein a corrugated furnace pipe is arranged below the inside of the furnace body, a plurality of heat exchange pipes are arranged above the inside of the furnace body, one end of the corrugated furnace pipe is connected with a backfire chamber, one side of the corrugated furnace pipe is provided with a second return smoke pipe, the upper part of the corrugated furnace pipe is provided with a third return smoke pipe, one end of the second return smoke pipe is connected with the backfire chamber, the other end of the second return smoke pipe is connected with one end of the third return smoke pipe, the other end of the third return smoke pipe is connected with a connecting flue, the top of the connecting flue is connected with a condenser, the top of the output end of the condenser is connected with a chimney, the second return smoke pipe and the third return smoke pipe are both threaded smoke pipes, and the outer wall surface is provided with a threaded groove.
Preferably, a burner is arranged at one end of the furnace body, and the side surface of the output end of the condenser is connected with an air inlet of the burner through a circulating pipeline.
Preferably, the base is installed at the bottom of the furnace body, a drain pipe is connected to the bottom of one end of the furnace body, and a condensate water discharge pipe is installed at the bottom of the furnace body.
Preferably, a water return port and a water outlet are formed in the top of one end of the heat exchange tube, an exhaust valve is arranged in the top of the other end of the heat exchange tube, and a drain valve is arranged at the bottom of the other end of the heat exchange tube.
Preferably, a sight glass is arranged on the outer wall of one side of the furnace body, and a water level probe is arranged on the outer wall of the other side of the furnace body.
Preferably, a water inlet valve and a water outlet valve are arranged on one side of the condenser.
Preferably, an explosion-proof door is arranged at one end of the furnace body.
Compared with the prior art, the utility model has the beneficial effects that:
In this low nitrogen condensation vacuum boiler of screw thread tobacco pipe and ripple stove courage structure, can increase the area of contact with the interior water of furnace body through the ripple stove courage that sets up wherein, and through the screw thread tobacco pipe structural design of second return flue pipe and third return flue pipe, can increase the area of contact of tobacco pipe and water, thereby improve the heat transfer effect, regard as first return stroke through the ripple stove courage, combine second return flue pipe and third return flue pipe, realize the extension of the journey of flue gas, guarantee that the flue gas fully flows in the furnace body, and then fully heats water, improve the heat transfer effect.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
fig. 3 is a schematic side view of the present utility model.
The meaning of each reference sign in the figure is:
1. A furnace body; 11. a base; 12. a blow-down pipe; 13. a water return port; 14. a water outlet; 15. an exhaust valve; 16. a blow-down valve; 17. a heat exchange tube; 18. a viewing mirror; 19. a water level probe; 110. a condensed water discharge pipe; 111. an explosion door; 2. a burner; 3. a corrugated furnace; 4. a flashback chamber; 5. a second return smoke tube; 51. a thread groove; 6. a third return smoke tube; 7. connecting the flue; 8. a condenser; 81. a water inlet valve; 82. a water outlet valve; 9. a chimney; 10. and a circulation pipeline.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a low-nitrogen condensing vacuum boiler with a screw smoke pipe and corrugated furnace pipe structure, which comprises a furnace body 1, wherein a corrugated furnace pipe 3 is arranged below the inner part of the furnace body 1, a plurality of heat exchange pipes 17 are arranged above the inner part of the furnace body 1 and used for conveying coolant water, one end of the corrugated furnace pipe 3 is connected with a backfire chamber 4 for backfire of smoke, the structure of the corrugated furnace pipe 3 can increase the contact area with water and improve the heating effect, the corrugated furnace pipe 3 is a first return stroke of the smoke, one side of the corrugated furnace pipe 3 is provided with a second return smoke pipe 5, the upper part of the corrugated furnace pipe 3 is provided with a third return smoke pipe 6, one end of the second return smoke pipe 5 is connected with the backfire chamber 4, the flue gas path can be increased through three return strokes, guarantee to fully exchange heat with water, the other end of second return stroke tobacco pipe 5 is connected with the one end of third return stroke tobacco pipe 6, the other end of third return stroke tobacco pipe 6 is connected with connection flue 7, the end that third return stroke tobacco pipe 6 is close to second return stroke tobacco pipe 5 is provided with preceding smoke box, the end that third return stroke tobacco pipe 6 is close to connection flue 7 is provided with back smoke box, the top of connection flue 7 is connected with condenser 8 for carry out recycle with the surplus heat of flue gas, the output top of condenser 8 is connected with chimney 9, second return stroke tobacco pipe 5 and third return stroke tobacco pipe 6 are the screw thread tobacco pipe, the outer wall surface is provided with screw thread groove 51 for increase with the area of contact of water.
In this embodiment, a burner 2 is installed at one end of a furnace body 1, which is used for combusting fuel in a corrugated furnace pipe 3, the side surface of the output end of a condenser 8 is connected with an air inlet of the burner 2 through a circulating pipeline 10, and is used for introducing residual heat gas after the condenser 8 is utilized into the burner 2, so that the air inlet of the burner 2 has a certain temperature, the combustion effect is improved, the circulating pipeline 10 guides hot gas to the air inlet of the burner 2, and the hot gas is mixed with combustion air and then is fed into the furnace body 1 together to participate in auxiliary combustion and integration of a thermodynamic flow field. The low-nitrogen burner technology is used for recycling flue gas, and more low-nitrogen burning technology is used at present, part of flue gas is extracted and returned into the furnace, and the flame temperature is reduced, the burning speed is restrained and thermal NOx is reduced by utilizing the heat absorption of inert gas and the reduction of oxygen concentration.
Specifically, the base 11 is installed to the bottom of furnace body 1, and the one end bottom of furnace body 1 is connected with blow off pipe 12 for the blowdown, and condensate drain 110 is installed to the bottom of furnace body 1 for the comdenstion water is discharged, still installs the water filling mouth on the furnace body 1 for the joining of heat medium water.
Further, a water return port 13 and a water outlet 14 are arranged at the top of one end of the heat exchange tube 17, an exhaust valve 15 is arranged at the top of the other end of the heat exchange tube 17 and used for exhausting the heat exchange tube 17, and a drain valve 16 is arranged at the bottom of the other end of the heat exchange tube 17 and used for throwing and draining the heat exchange tube 17.
Further, a sight glass 18 is installed on the outer wall of one side of the furnace body 1 and is used for manually observing the water level, and a water level probe 19 is installed on the outer wall of the other side of the furnace body 1 and is used for externally connecting an electronic water level gauge to monitor the water level.
Further, a water inlet valve 81 and a water outlet valve 82 are provided at one side of the condenser 8 for water inlet and outlet of the condenser 8.
Further, an explosion door 111 is installed at one end of the furnace body 1, for achieving an explosion-proof effect.
When the low-nitrogen condensing vacuum boiler with the screw smoke pipe and corrugated furnace pipe structure is used, firstly, a combustor 2 burns in a hearth surrounded by a corrugated furnace pipe 3, generated high-temperature smoke flows to a second return smoke pipe 5 formed by the screw smoke pipe through a backfire chamber 4 to reach a front smoke box, flows to a third return smoke pipe 6 formed by the screw smoke pipe through the front smoke box in a baffling way to reach a rear smoke box, enters a condenser 8 through a connecting flue 7 on the rear smoke box, and is discharged into the atmosphere through a chimney 9; the hearth and the flashback chamber 4 of the boiler are of a full wet back type forward flow structure, so that the water cooling degree of the hearth is improved, the flame temperature in the hearth can be further reduced, the aim of ultralow nitrogen emission is more facilitated, and the condenser 8 is matched, so that a heat source can be effectively utilized;
The part in the furnace body 1 is provided with heat medium water, the heating process is that flame and high temperature flue gas generated by natural gas combustion are radiated and heat exchanged through a combustion chamber in the corrugated furnace liner 3 and are convected and exchanged through a second return smoke pipe 5 and a third return smoke pipe 6, so that the heat medium water in the furnace body 1 is heated and evaporated, and is condensed and exchanged with cold medium water in a heat exchange pipe 17, finally combustion products flow to a condenser 8 through a connecting flue 7, the heat is absorbed by the condenser 8 and then discharged out of the furnace, and the heated water in the heat exchange pipe 17 is circularly pumped to a heat user, and meanwhile, the furnace is assembled with key auxiliary equipment such as a full-automatic combustor, an automatic control system, a vacuum pump and the like.
Finally, it should be noted that, in the embodiment, the burner 2, the condenser 8, and the like, the electronic components in the above components are all universal standard components or components known to those skilled in the art, the structure and principle thereof are all known to those skilled in the art through technical manuals or through routine experimental methods, all the electrical components are connected through wires at the idle position of the device, and the specific connection means should refer to the sequence of operation between the electrical components in the working principle to complete the electrical connection, which is known in the art.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a low nitrogen condensation vacuum boiler of screw thread tobacco pipe and ripple stove courage structure, includes furnace body (1), its characterized in that: the utility model discloses a boiler furnace, including furnace body (1), corrugated furnace pipe (3) are provided with to the inside below of furnace body (1), the inside top of furnace body (1) is provided with a plurality of heat exchange tubes (17), the one end of corrugated furnace pipe (3) is connected with back combustion chamber (4), one side of corrugated furnace pipe (3) is provided with second return stroke tobacco pipe (5), the upper portion of corrugated furnace pipe (3) is provided with third return stroke tobacco pipe (6), the one end and the back combustion chamber (4) of second return stroke tobacco pipe (5) are connected, the other end and the one end of third return stroke tobacco pipe (6) of second return stroke tobacco pipe (5) are connected, the other end of third return stroke tobacco pipe (6) is connected with connection flue (7), the top of connection flue (7) is connected with condenser (8), the output top of condenser (8) is connected with chimney (9), second return stroke tobacco pipe (5) and third return stroke (6) are the screw thread, and outer wall surface is provided with thread groove (51).
2. The low nitrogen condensing vacuum boiler with a screw thread smoke tube and corrugated furnace structure according to claim 1, wherein: the burner is installed to one end of furnace body (1), the output side of condenser (8) is connected with the air intake of combustor (2) through circulation pipeline (10).
3. The low nitrogen condensing vacuum boiler with a screw thread smoke tube and corrugated furnace structure according to claim 1, wherein: the bottom of furnace body (1) is installed base (11), the one end bottom of furnace body (1) is connected with blow off pipe (12), condensate drain pipe (110) are installed to the bottom of furnace body (1).
4. The low nitrogen condensing vacuum boiler with a screw thread smoke tube and corrugated furnace structure according to claim 1, wherein: one end top of the heat exchange tube (17) is provided with a water return port (13) and a water outlet (14), the other end top of the heat exchange tube (17) is provided with an exhaust valve (15), and the other end bottom of the heat exchange tube (17) is provided with a blow-down valve (16).
5. The low nitrogen condensing vacuum boiler with a screw thread smoke tube and corrugated furnace structure according to claim 1, wherein: a sight glass (18) is arranged on the outer wall of one side of the furnace body (1), and a water level probe (19) is arranged on the outer wall of the other side of the furnace body (1).
6. The low nitrogen condensing vacuum boiler with a screw thread smoke tube and corrugated furnace structure according to claim 1, wherein: one side of the condenser (8) is provided with a water inlet valve (81) and a water outlet valve (82).
7. The low nitrogen condensing vacuum boiler with a screw thread smoke tube and corrugated furnace structure according to claim 1, wherein: an explosion-proof door (111) is arranged at one end of the furnace body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322774869.9U CN221036214U (en) | 2023-10-17 | 2023-10-17 | Low-nitrogen condensing vacuum boiler with threaded smoke pipe and corrugated furnace pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322774869.9U CN221036214U (en) | 2023-10-17 | 2023-10-17 | Low-nitrogen condensing vacuum boiler with threaded smoke pipe and corrugated furnace pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221036214U true CN221036214U (en) | 2024-05-28 |
Family
ID=91182877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322774869.9U Active CN221036214U (en) | 2023-10-17 | 2023-10-17 | Low-nitrogen condensing vacuum boiler with threaded smoke pipe and corrugated furnace pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221036214U (en) |
-
2023
- 2023-10-17 CN CN202322774869.9U patent/CN221036214U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |