CN213208234U - Stainless steel directly twists line pipe low nitrogen condensation water heater - Google Patents
Stainless steel directly twists line pipe low nitrogen condensation water heater Download PDFInfo
- Publication number
- CN213208234U CN213208234U CN202022115282.3U CN202022115282U CN213208234U CN 213208234 U CN213208234 U CN 213208234U CN 202022115282 U CN202022115282 U CN 202022115282U CN 213208234 U CN213208234 U CN 213208234U
- Authority
- CN
- China
- Prior art keywords
- pipe
- boiler body
- smoke
- stainless steel
- storage space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 138
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 35
- 239000010935 stainless steel Substances 0.000 title claims abstract description 35
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 34
- 238000009833 condensation Methods 0.000 title claims abstract description 27
- 230000005494 condensation Effects 0.000 title claims abstract description 27
- 239000000779 smoke Substances 0.000 claims abstract description 78
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 9
- 238000003860 storage Methods 0.000 claims description 44
- 238000005192 partition Methods 0.000 claims description 22
- 230000008901 benefit Effects 0.000 abstract description 4
- 241000208125 Nicotiana Species 0.000 abstract 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 abstract 3
- 238000009413 insulation Methods 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 22
- 239000003546 flue gas Substances 0.000 description 22
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 230000035882 stress Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000676 Si alloy Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- -1 aluminum-silicon-magnesium Chemical compound 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000008642 heat stress Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 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
- 230000008859 change Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
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]
Abstract
The utility model discloses a stainless steel directly turns round low nitrogen condensation water heater of bellows, include: vertical boiler body, the internally mounted at boiler body has the wave form stove courage of vertical setting, be provided with fire-resistant heat insulation layer in boiler body's outside, fire-resistant heat insulation layer extends the open end that covers the wave form stove courage, the outside at boiler body is provided with the ultralow nitrogen combustor of full premix, the inside of wave form stove courage is stretched into downwards from the open end of wave form stove courage to the burner of the ultralow nitrogen combustor of full premix, vertical a plurality of convection current tobacco pipes that are provided with in the inside water holding space of boiler body below the wave form stove courage, the inside of the smoke inlet end intercommunication wave form stove courage of every convection current tobacco pipe, the boiler body is stretched out downwards from the lower tube plate of boiler body bottom to the smoke exhaust end of every convection current tobacco pipe, be provided with the inlet tube on boiler body's lower part lateral wall, be provided with the. The utility model has the advantages of reliable use and high boiler efficiency.
Description
Technical Field
The utility model relates to a condensing boiler technical field, concretely relates to stainless steel directly turns round low nitrogen condensation water heater of line pipe.
Background
The condensing boiler in the current market mainly comprises a cast aluminum silicon alloy modularized commercial gas condensing water heater, a stainless steel coil commercial gas condensing water heater and a multi-return convection smoke tube commercial gas condensing heating furnace. Although the cast aluminum silicon alloy modular commercial gas condensation water heater has high efficiency and compact structure, the price of the die and the material is high, the core technology is controlled by foreign countries, only the assembly of parts after purchase is carried out at home, and the production capacity is extremely limited due to the limitation of foreign suppliers. During the combustion process of 1 cubic meter of natural gas, about 1.6 kilograms of condensed water can be generated, the condensed water contains acidic components such as nitric acid, nitrous acid and the like, the pH is less than 5, and the acidity is strong. Although a dense oxide layer can be formed on the surface of the cast aluminum-silicon-magnesium to slow down acid corrosion and oxygen corrosion, the acid corrosion resistance of the cast aluminum-silicon-magnesium is inferior to that of 316 stainless steel. Meanwhile, aluminum has weak resistance to alkaline corrosion, so that the aluminum cannot be used as a direct supply system. The stainless steel has the advantage of strong oxidation resistance and corrosion resistance, so that the condensing boiler of the stainless steel furnace body can be applied. However, the commercial gas condensing water heater with the stainless steel coil pipe is large and heavy, the coil pipe needs to be provided with a special tool, the process is complex, the cost is high, the commercial gas condensing heating furnace with the multi-return convection smoke pipe is provided with a split type condenser, the size of the whole machine is large, and meanwhile, the straight pipe stainless steel heat exchanger adopts a welding process and then stress corrosion cracking can occur under the multiple actions of the active ions of condensed water, welding residual stress and the cold and hot alternating stress inside and outside the pipe wall.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a use reliable and efficient stainless steel straight twisted wire tube low nitrogen condensation water heater of boiler.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a stainless steel directly-twisted pipe low-nitrogen condensation water heater comprises: the boiler comprises a vertical boiler body, a corrugated furnace which is longitudinally arranged and is provided with an opening at the top end and a closed bottom end is arranged in the boiler body, the closed end of the corrugated furnace extends downwards into a water storage space in the boiler body, the open end of the corrugated furnace extends upwards out of the boiler body, a fire-resistant heat-insulating layer is arranged outside the boiler body and extends to cover the open end of the corrugated furnace, a full-premixing ultralow-nitrogen burner is arranged outside the boiler body, a burner head of the full-premixing ultralow-nitrogen burner extends downwards into the corrugated furnace from the open end of the corrugated furnace, a plurality of convection smoke pipes are vertically arranged in the water storage space in the boiler body below the corrugated furnace, the smoke inlet end of each convection smoke pipe extends upwards into the corrugated furnace from a furnace pipe plate at the bottom of the corrugated furnace and is communicated with the inside of the corrugated furnace, and the smoke outlet end of each convection smoke pipe extends downwards out of the boiler body from a lower pipe plate at the bottom of the boiler body, the side wall of the lower part of the boiler body is provided with a water inlet pipe communicated with the water storage space inside the boiler body, and the side wall of the upper part of the boiler body is provided with a water outlet pipe communicated with the water storage space inside the boiler body.
Further, the low-nitrogen condensation water heater with the stainless steel straight twisted pipe comprises: a gap is reserved between the part of the corrugated furnace pipe extending into the water storage space in the boiler body and the inner wall of the boiler body, and a fire-resistant heat-insulating layer is arranged at the opening end of the corrugated furnace pipe.
Further, the low-nitrogen condensation water heater with the stainless steel straight twisted pipe comprises: the convection flue pipe is a straight twisted stainless steel pipe.
Further, the low-nitrogen condensation water heater with the stainless steel straight twisted pipe comprises: the first partition, the second partition and the third partition are sequentially arranged in the water storage space of the convection smoke pipe area in the boiler body from the smoke inlet end to the smoke exhaust end at intervals, and each partition enables the water storage space of the convection smoke pipe area in the boiler body to form a bent water flowing channel.
Further, the low-nitrogen condensation water heater with the stainless steel straight twisted pipe comprises: the boiler is characterized in that a smoke collection box is arranged below the boiler body, the smoke discharge ends of the convection smoke pipes extend downwards out of the boiler body from a lower pipe plate at the bottom of the boiler body and then extend into the smoke collection box, a smoke discharge port convenient for smoke discharge is arranged at the middle lower part of the smoke collection box, a condensate water discharge port is arranged at the bottom of the smoke collection box, and the condensate water discharge port is connected with a U-shaped smoke condensate water discharge pipe.
Further, the low-nitrogen condensation water heater with the stainless steel straight twisted pipe comprises: the top end of the boiler body is provided with a temperature and pressure safety valve which extends into the water storage space in the boiler body.
Further, the low-nitrogen condensation water heater with the stainless steel straight twisted pipe comprises: the top end of the boiler body is provided with an automatic exhaust valve which extends into the upper part of the water storage space in the boiler body.
Further, the low-nitrogen condensation water heater with the stainless steel straight twisted pipe comprises: the water outlet pipe is provided with a temperature sensor for detecting the water in the water outlet pipe and a pressure gauge for detecting the pressure in the water outlet pipe.
Further, the low-nitrogen condensation water heater with the stainless steel straight twisted pipe comprises: the lower tube plate at the bottom of the boiler body is provided with a drain pipe communicated with the water storage space inside the boiler body, and the drain pipe is provided with a control valve.
Through the implementation of the above technical scheme, the beneficial effects of the utility model are that:
(1) the corrugated furnace pipe and the straight twisted-line pipe are adopted to reduce the axial telescopic deformation of the boiler body, the heat stress generated by the tube plate, the convection smoke pipe and the furnace pipe, reduce the stress concentration caused by the extension of the furnace pipe and the smoke pipe at the joint of the furnace pipe and the tube plate, and avoid the stress corrosion cracking of the boiler body;
(2) the initial shape of the smoke tube is changed and the flow cross section of smoke is reduced by the countercurrent heat exchange between the direction of water feeding into the water storage space and the smoke discharging direction and through the straight twisted stainless steel tube; the laminar flow heat convection of the flue gas in the pipe is changed into turbulent flow heat convection, the temperature gradient of the flue gas from the center of the flue gas pipe to the pipe wall is reduced, the flow velocity of the flue gas is accelerated, and the side heat transfer of the flue gas is enhanced, so that the water vapor in the flue gas is condensed into condensed water to be discharged, and the boiler efficiency is improved;
(3) through the first partition plate, the second partition plate and the third partition plate in the water storage space of the smoke tube area of the body, a bent water flowing channel is formed among the partition plates, so that the vertical communication between the water inlet pipe and the water outlet pipe in the outer area of the smoke tube in the circumferential direction is avoided, the circulation time of water in the smoke tube area is prolonged, the heat exchange between the water and high-temperature smoke in the smoke tube can be better realized, and the heat exchange efficiency is improved;
(4) according to the combustion proportion adjusting technology, an intelligent boiler controller is matched with a natural gas combination proportion adjusting valve, a full-premixing variable frequency fan and a metal fiber surface combustion head, the optimal air-fuel ratio is guaranteed, the boiler output is automatically adjusted to meet dynamic heat load, a boiler heat output curve is close to a dynamic heat demand curve as much as possible, less invalid output is achieved, and the low NOX emission effect is achieved.
Drawings
Fig. 1 is a vertical sectional view of a stainless steel straight-twisted-pipe low-nitrogen condensation water heater of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
FIG. 3 is a partially cross-sectional view of the knob of the convection tube shown in FIG. 1.
Fig. 4 is a schematic structural view of the third separator shown in fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, and a specific orientation configuration and operation, and thus should not be construed as limiting the present invention.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the low-nitrogen condensation water heater with the stainless steel straight twisted pipe comprises: the vertical boiler comprises a vertical boiler body 1, a corrugated furnace pipe 2 which is longitudinally arranged and is provided with an opening at the top end and a closed bottom end is arranged inside the boiler body 1, the closed end of the corrugated furnace pipe 2 extends downwards into a water storage space 3 inside the boiler body 1, the open end of the corrugated furnace pipe 2 extends upwards out of the boiler body 1, a fire-resistant heat-insulating layer 4 is arranged outside the boiler body 1, the fire-resistant heat-insulating layer 4 extends to cover the open end of the corrugated furnace pipe 2, a full-premixing ultra-low nitrogen burner 5 is arranged outside the boiler body 1, the full-premixing ultra-low nitrogen burner 5 is electrically connected with a variable frequency fan 52, a burner head 51 of the full-premixing ultra-low nitrogen burner 5 extends downwards into the corrugated furnace pipe 2 from the open end of the corrugated furnace pipe 2, a plurality of convection smoke pipes 6 are vertically arranged in the water storage space 3 inside the boiler body 1 below the corrugated furnace pipe 2, the smoke pipes 6 extend upwards into the corrugated furnace pipe 2 from a pipe plate 21 at the bottom of the corrugated furnace pipe, the smoke discharging end of each convection smoke tube 6 extends out of the boiler body 1 downwards from a lower tube plate 7 at the bottom of the boiler body 1, a water inlet pipe 8 communicated with the water storage space 3 in the boiler body 1 is arranged on the side wall of the lower part of the boiler body 1, and a water outlet pipe 9 communicated with the water storage space 3 in the boiler body 1 is arranged on the side wall of the upper part of the boiler body 1, so that the direction of water fed into the water storage space is opposite to the smoke discharging direction, heat exchange is carried out through high-temperature smoke, the temperature of the discharged smoke is reduced, and along with the reduction of the temperature of the smoke, steam in the smoke is condensed into condensed water to be discharged, and the condensed water can be recycled;
in this embodiment, a gap is left between the part of the wave-shaped furnace pipe 2 extending into the water storage space 3 in the boiler body 1 and the inner wall of the boiler body 1, and the opening end of the wave-shaped furnace pipe 2 is provided with a fire-resistant heat-insulating layer 10, so that the part of the wave-shaped furnace pipe 2 extending into the water storage space 3 can be completely immersed in the water storage space, thereby ensuring the heating effect of the wave-shaped furnace pipe on the water in the water storage space, avoiding the direct contact between the wave-shaped furnace pipe and the tank wall of the water storage space 3, causing the overheating damage of the water storage space 3, avoiding the cold and hot telescopic change of the furnace pipe in the length direction, and reducing the pressure concentration of the welding part of the opening end;
in this embodiment, the convection flue tube 6 is a stainless steel tube with straight twisted lines, the flow cross-sectional area of flue gas is reduced by changing the initial shape of the flue tube, laminar convection heat transfer of flue gas in the tube is changed into turbulent convection heat transfer, the temperature gradient of flue gas from the center of the flue tube to the tube wall is reduced, the flow velocity of flue gas is accelerated, side heat transfer of flue gas is enhanced, water vapor in high-temperature flue gas is condensed, latent heat and sensible heat of water vapor in high-temperature flue gas are fully recovered, and the effect of energy conservation by condensation is achieved;
in this embodiment, the first partition 11, the second partition 12 and the third partition 13 are sequentially arranged in the convection flue pipe region water storage space 3 inside the boiler body 1 from the flue gas inlet end to the flue gas outlet end at intervals, and the first partition 11, the second partition 12 and the third partition 13 enable the convection flue pipe region water storage space 3 inside the boiler body 1 to form a curved water flow channel, so that the vertical communication between the water inlet pipe and the water outlet pipe outside the flue pipe in the circumferential direction can be avoided, the circulation time of water in the flue pipe region inside the body is prolonged, and the heat exchange between the water and the high-temperature flue gas in the flue pipe can be better realized, so that the heat exchange efficiency is improved;
in the embodiment, a smoke collection box 14 is arranged below the boiler body 1, the smoke discharge ends of the convection smoke pipes 6 extend downwards out of the boiler body 1 from a lower pipe plate 7 at the bottom of the boiler body 1 and then extend into the smoke collection box 14, a smoke discharge port 15 convenient for discharging smoke is arranged at the middle lower part of the smoke collection box 14, a condensed water discharge port is arranged at the bottom of the smoke collection box 14 and is connected with a U-shaped smoke condensed water discharge pipe 16, and the smoke can be prevented from being directly discharged from the condensed water discharge port through the U-shaped smoke condensed water discharge pipe 16;
in the embodiment, a temperature and pressure safety valve 17 extending into the water storage space inside the boiler body is arranged at the top end of the boiler body 1, so that when the temperature or the pressure in the water storage space exceeds the limit value of the safety valve, the safety valve is opened, and the boiler is protected; in the embodiment, the top end of the boiler body 1 is provided with an automatic exhaust valve 18 extending into the upper part of the water storage space 3 in the boiler body 1, so that when air exists in the upper part of the water storage space, the automatic exhaust valve is opened to ensure that the water storage space of the boiler is filled with water and reduce the internal air flow vibration; in this embodiment, the water outlet pipe 9 is provided with a temperature sensor 19 for detecting water in the water outlet pipe and a pressure gauge 20 for detecting pressure in the water outlet pipe, so that the temperature and pressure of high-temperature water discharged from the water outlet pipe can be reflected, and workers can know the operation condition of the boiler conveniently; in this embodiment, a drain pipe 21 communicating with the water storage space 3 inside the boiler body 1 is provided on the lower tube plate 7 at the bottom of the boiler body 1, and a control valve 22 is provided on the drain pipe 21, so that the boiler water in the water storage space is discharged through the drain pipe when the boiler is not in use.
The utility model has the advantages that:
(1) the corrugated furnace pipe and the straight twisted-line pipe are adopted to reduce the axial telescopic deformation of the boiler body, the heat stress generated by the tube plate, the convection smoke pipe and the furnace pipe, reduce the stress concentration caused by the extension of the furnace pipe and the smoke pipe at the joint of the furnace pipe and the tube plate, and avoid the stress corrosion cracking of the boiler body;
(2) the initial shape of the smoke tube is changed and the flow cross section of smoke is reduced by the countercurrent heat exchange between the direction of water feeding into the water storage space and the smoke discharging direction and through the straight twisted stainless steel tube; the laminar flow heat convection of the flue gas in the pipe is changed into turbulent flow heat convection, the temperature gradient of the flue gas from the center of the flue gas pipe to the pipe wall is reduced, the flow velocity of the flue gas is accelerated, and the side heat transfer of the flue gas is enhanced, so that the water vapor in the flue gas is condensed into condensed water to be discharged, and the boiler efficiency is improved;
(3) through the first partition plate, the second partition plate and the third partition plate in the water storage space of the smoke tube area of the body, a bent water flowing channel is formed among the partition plates, so that the vertical communication between the water inlet pipe and the water outlet pipe in the outer area of the smoke tube in the circumferential direction is avoided, the circulation time of water in the smoke tube area is prolonged, the heat exchange between the water and high-temperature smoke in the smoke tube can be better realized, and the heat exchange efficiency is improved;
(4) according to the combustion proportion adjusting technology, an intelligent boiler controller is matched with a natural gas combination proportion adjusting valve, a full-premixing variable frequency fan and a metal fiber surface combustion head, the optimal air-fuel ratio is guaranteed, the boiler output is automatically adjusted to meet dynamic heat load, a boiler heat output curve is close to a dynamic heat demand curve as much as possible, less invalid output is achieved, and the low NOX emission effect is achieved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are also within the scope of the present invention.
Claims (9)
1. A stainless steel directly-twisted pipe low-nitrogen condensation water heater comprises: vertical boiler body, its characterized in that: the wave-shaped furnace pipe with the top end open and the bottom end closed is arranged in the boiler body, the closed end of the wave-shaped furnace pipe extends downwards into the water storage space in the boiler body, the open end of the wave-shaped furnace pipe extends upwards out of the boiler body, the outer part of the boiler body is provided with a fire-resistant heat-insulating layer which extends to cover the open end of the wave-shaped furnace pipe, the outer part of the boiler body is provided with a full-premixing ultra-low nitrogen burner, a burner head of the full-premixing ultra-low nitrogen burner extends downwards into the wave-shaped furnace pipe from the open end of the wave-shaped furnace pipe, a plurality of convection smoke pipes are vertically arranged in the water storage space in the boiler body below the wave-shaped furnace pipe, the smoke inlet end of each convection smoke pipe extends upwards into the wave-shaped furnace pipe from a furnace pipe plate at the bottom of the wave-shaped furnace pipe and is communicated with the inside of the wave-shaped furnace pipe, and, the side wall of the lower part of the boiler body is provided with a water inlet pipe communicated with the water storage space inside the boiler body, and the side wall of the upper part of the boiler body is provided with a water outlet pipe communicated with the water storage space inside the boiler body.
2. The low-nitrogen condensation water heater with the stainless steel straight twisted pipe as claimed in claim 1, characterized in that: a gap is reserved between the part of the corrugated furnace pipe extending into the water storage space in the boiler body and the inner wall of the boiler body, and a fire-resistant heat-insulating layer is arranged at the opening end of the corrugated furnace pipe.
3. The low-nitrogen condensation water heater with the stainless steel straight twisted pipe as claimed in claim 1, characterized in that: the convection flue pipe is a straight twisted stainless steel pipe.
4. The low-nitrogen condensation water heater with the stainless steel straight twisted pipe as claimed in claim 1, characterized in that: the first partition, the second partition and the third partition are sequentially arranged in the water storage space of the convection smoke pipe area in the boiler body from the smoke inlet end to the smoke exhaust end at intervals, and each partition enables the water storage space of the convection smoke pipe area in the boiler body to form a bent water flowing channel.
5. The low-nitrogen condensation water heater with the stainless steel straight twisted pipe as claimed in claim 1, characterized in that: the boiler is characterized in that a smoke collection box is arranged below the boiler body, the smoke discharge ends of the convection smoke pipes extend downwards out of the boiler body from a lower pipe plate at the bottom of the boiler body and then extend into the smoke collection box, a smoke discharge port convenient for smoke discharge is arranged at the middle lower part of the smoke collection box, a condensate water discharge port is arranged at the bottom of the smoke collection box, and the condensate water discharge port is connected with a U-shaped smoke condensate water discharge pipe.
6. The low-nitrogen condensation water heater with the stainless steel straight twisted pipe as claimed in claim 1, characterized in that: the top end of the boiler body is provided with a temperature and pressure safety valve which extends into the water storage space in the boiler body.
7. The low-nitrogen condensation water heater with the stainless steel straight twisted pipe as claimed in claim 1, characterized in that: the top end of the boiler body is provided with an automatic exhaust valve which extends into the upper part of the water storage space in the boiler body.
8. The low-nitrogen condensation water heater with the stainless steel straight twisted pipe as claimed in claim 1, characterized in that: the water outlet pipe is provided with a temperature sensor for detecting the water in the water outlet pipe and a pressure gauge for detecting the pressure in the water outlet pipe.
9. The low-nitrogen condensation water heater with the stainless steel straight twisted pipe as claimed in claim 1, characterized in that: the lower tube plate at the bottom of the boiler body is provided with a drain pipe communicated with the water storage space inside the boiler body, and the drain pipe is provided with a control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022115282.3U CN213208234U (en) | 2020-09-24 | 2020-09-24 | Stainless steel directly twists line pipe low nitrogen condensation water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022115282.3U CN213208234U (en) | 2020-09-24 | 2020-09-24 | Stainless steel directly twists line pipe low nitrogen condensation water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213208234U true CN213208234U (en) | 2021-05-14 |
Family
ID=75822806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022115282.3U Active CN213208234U (en) | 2020-09-24 | 2020-09-24 | Stainless steel directly twists line pipe low nitrogen condensation water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213208234U (en) |
-
2020
- 2020-09-24 CN CN202022115282.3U patent/CN213208234U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105571130A (en) | Phase change heat exchange hot water machine set | |
| CN105157228A (en) | Water-tube type central-reverse-flame and condensation integrated boiler | |
| CN207555992U (en) | Vertical inner tube condenses hot-water boiler | |
| CN213208234U (en) | Stainless steel directly twists line pipe low nitrogen condensation water heater | |
| CN105180421B (en) | Transversal flow waterpipe type central flame flame boiler | |
| CN213542430U (en) | Single-return-stroke full-premixing low-nitrogen condensation steam boiler | |
| CN207865428U (en) | A kind of biomass boiler fume afterheat utilizes energy saver | |
| CN105066437B (en) | The complete wet back of the body central flame flame boiler of integral type | |
| CN204880675U (en) | Transversely erode water pipe wherein heart boiler that strile -backs | |
| CN205784781U (en) | A kind of heat exchange element is the enclosed steam air heater of twisted elliptic tube | |
| CN205156345U (en) | Novel condenser | |
| CN206257998U (en) | SGH steam heaters | |
| CN208871585U (en) | A kind of novel horizontal internally fired boiler | |
| CN211716865U (en) | Novel efficient energy-saving gas boiler | |
| CN204880687U (en) | Integral type is strile -backd boiler at wet back of body center entirely | |
| CN105423550B (en) | A kind of high-efficiency heat pump couples Condensing Gas-fired Hot Water Boiler | |
| CN205351773U (en) | Phase transition heat transfer hot water unit | |
| CN204880727U (en) | Water pipe wherein heart integrative stove of condensation that strile -backs | |
| CN104165455B (en) | A kind of waterpipe type high-temperature hot-water boiler | |
| CN213421462U (en) | Heat exchange structure for water heating equipment | |
| CN203928402U (en) | Efficient normal pressure condensing water batch heater | |
| CN207990966U (en) | Horizontal two return condensing boiler | |
| CN220397863U (en) | Dual-purpose heat exchanger of fuel electricity and water heater | |
| CN201331183Y (en) | Compound gas superconducting heater | |
| CN213901503U (en) | Secondary condensation heat exchanger of gas water heating equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |