CN117967605B - Fan assembly, combustion heat exchange assembly and gas water heater - Google Patents
Fan assembly, combustion heat exchange assembly and gas water heater Download PDFInfo
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- CN117967605B CN117967605B CN202410365620.9A CN202410365620A CN117967605B CN 117967605 B CN117967605 B CN 117967605B CN 202410365620 A CN202410365620 A CN 202410365620A CN 117967605 B CN117967605 B CN 117967605B
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- spoiler
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 239000000779 smoke Substances 0.000 claims abstract description 28
- 238000009423 ventilation Methods 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 59
- 230000000903 blocking effect Effects 0.000 description 14
- 230000006872 improvement Effects 0.000 description 11
- 230000003313 weakening effect Effects 0.000 description 7
- 238000012546 transfer Methods 0.000 description 6
- 235000019504 cigarettes Nutrition 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly 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
- 235000013361 beverage Nutrition 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
- F04D29/464—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a fan assembly, comprising: a smoke collecting case having an air inlet through which air flows, an exhaust passage through which a fan is connected and through which air is exhausted, and a top wall plate provided at one side of the exhaust passage so as to intersect with an inflow direction of the air; the air inlet is simultaneously communicated with the exhaust channel and the top wall plate in a counterpoint way; the spoiler is arranged in the air inlet and is provided with a first area aligned with the exhaust channel and a second area aligned with the top wall plate, and a plurality of spoiler holes for allowing air to flow from the air inlet to the exhaust channel are formed in the first area and the second area; and the adjusting mechanism is used for adjusting the ventilation area of the first area and/or the ventilation area of the second area. The invention also discloses a combustion heat exchange assembly and a gas water heater. The invention can dynamically adjust the air flow obstruction degree of two air paths in the smoke collecting shell, realize air intake balance, enhance the drainage universality of the fan assembly and reduce the noise and vibration generated by the combustion of the gas water heater.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a fan assembly, a combustion heat exchange assembly and a gas water heater.
Background
The gas water heater is the most convenient and economic device for quickly heating water at present, has high energy conversion efficiency, and saves more energy compared with an electric water heater. The existing exhaust type gas water heater generally adopts an upper pumping platform design, namely a fan assembly is arranged above a burner assembly, the burner assembly and the fan assembly are connected through a heat exchange assembly, and negative pressure is generated by the fan assembly during operation, so that the burner assembly can receive and burn gas and external oxygen conveyed from a gas supply assembly (comprising a conveying pipeline, a gas distributor and the like), high-temperature flue gas after combustion flows out of the burner assembly under the suction effect of the fan assembly, flows through the heat exchange assembly and exchanges heat with water to be heated, and finally flows to the fan assembly and is discharged.
During practical use, the fan assembly is found to be concave on the smoke collecting shell of the fan assembly to vacate the installation space for the fan while maintaining the air inlet structure due to integral space limitation, so that the fan assembly has the problem of uneven drainage, vortex is easily formed, the air flow in the combustion system is uneven, partial area is insufficient in combustion, partial area is overlarge in combustion load, normal heat exchange of the water heater is affected, and a series of problems such as burning out of the heat exchanger, exceeding of standard smoke and the like are even caused. In this regard, can set up the vortex subassembly in the air inlet to the air current flow environment in the fan, adjust the air inlet of collection cigarette shell, exhaust passage's air current of admitting air through the vortex subassembly to the homogeneity of balanced fan whole air inlet.
However, the spoiler assembly in the prior art adopts a fixed structure design, the spoiler form is single, and the air flow adjustment work of the gas water heater is difficult to flexibly adapt to different working loads, so that unstable combustion, reduced heat efficiency, noise and vibration are caused, the universality is poor, and the popularization and the use are not facilitated.
Disclosure of Invention
Based on the problems, the invention aims to provide a fan assembly, a combustion heat exchange assembly and a gas water heater so as to solve the technical problems.
In order to achieve the above object, the following technical scheme is provided:
in a first aspect, the present invention provides a fan assembly for diverting exhaust gas in a combustion heat exchange assembly having a burner, a heat exchange assembly, the fan assembly comprising: the smoke collecting shell is provided with an air inlet for air inflow, an exhaust channel communicated with a fan and used for exhausting, and a top wall plate which is arranged on one side of the exhaust channel and is intersected with the air inflow direction, wherein the air inlet is simultaneously communicated with the exhaust channel and the top wall plate in a counterpoint mode; the spoiler is arranged in the air inlet and provided with a first area aligned with the exhaust channel and a second area aligned with the top wall plate, and turbulence holes for air to flow from the air inlet to the exhaust channel are formed in the first area and the second area; and the adjusting mechanism is used for adjusting the ventilation area of the first area and/or the ventilation area of the second area.
As a further improvement of the fan assembly provided by the invention, the first area and the second area are respectively formed on two ends of the spoiler, the adjusting mechanism comprises a movable plate and a driving mechanism, the movable plate is attached to the spoiler, the movable plate is provided with an adjusting hole aligned with the spoiler hole, and the driving mechanism is connected with the movable plate and is used for driving the movable plate to move relative to the spoiler so as to adjust the ventilation area of the first area and/or the ventilation area of the second area.
As a further improvement of the fan assembly provided by the invention, the movable plate is attached to the first area of the spoiler, and the driving mechanism drives the movable plate to move on the first area.
As a further improvement of the fan assembly provided by the invention, the aperture of the turbulence hole in the second area is larger than that in the first area.
As a further improvement of the fan assembly, the driving mechanism comprises a movable connecting rod penetrating through the smoke collecting shell and a telescopic piece positioned on the outer wall of the smoke collecting shell, one end of the connecting rod is connected to the movable plate, and the other end of the connecting rod is connected with the telescopic end of the telescopic piece.
As a further improvement of the fan assembly provided by the invention, the telescopic piece is a telescopic electric cylinder.
As a further improvement of the fan assembly provided by the invention, the side wall of the smoke collecting shell is provided with a hole through which the connecting rod penetrates, the hole is provided with a sealing ring, and the connecting rod movably penetrates through the sealing ring.
As a further improvement of the fan assembly provided by the invention, the connecting rod is detachably connected with the movable plate.
As a further improvement of the fan assembly provided by the invention, the movable plate is arranged on one side of the spoiler, which is close to the exhaust channel.
As a further improvement of the fan assembly, the fan assembly is further provided with a limiting structure, and the limiting structure is connected with the movable plate and used for longitudinally limiting the movable plate.
As a further improvement of the fan assembly provided by the invention, the limiting structure comprises a clamping groove formed on the spoiler and a convex edge formed on the movable plate, wherein the convex edge is slidably clamped in the clamping groove and used for longitudinally limiting the movable plate.
In a second aspect, the present invention also provides a combustion heat exchange assembly comprising a fan assembly as described above, a burner, and a heat exchange assembly; the intelligent combustion control device is characterized by further comprising a controller and an induction mechanism for detecting the combustion working condition of the combustor, wherein the input end of the controller is connected with the induction mechanism, and the output end of the controller is connected with the adjusting mechanism.
In a second aspect, the present invention also provides a gas water heater, which is characterized in that: comprising a combustion heat exchange assembly as described above.
Compared with the prior art, the invention has the beneficial effects that:
The air flow blocking degree of the two air paths in the smoke collecting shell can be dynamically adjusted by setting the adjusting mechanism to adjust the ventilation area of the first area and/or the second area, so that the flow speeds of the two air paths can be kept consistent under different combustion working conditions, air intake balance is realized, the drainage universality of the fan assembly is enhanced, the overall combustion stability and the thermal efficiency of the gas water heater are improved, and the noise and vibration generated by combustion of the gas water heater are reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic diagram of a prior art gas water heater;
FIG. 2 is a schematic cross-sectional view of a prior art fan assembly;
FIG. 3 is a schematic structural view of a fan assembly according to the present embodiment;
FIG. 4 is a second schematic structural view of the fan assembly according to the present embodiment;
Fig. 5 is a schematic structural diagram of a fan assembly according to the third embodiment.
Fig. 6 is a schematic view of a spoiler structure.
In the figure:
1. A fan assembly; 11. a smoke collecting shell; 12. an air inlet; 13. a blower; 14. an exhaust passage; 15. a top wall panel; 16. a spoiler; 161. a first region; 162. a second region; 163. a disturbance orifice; 164. a clamping groove; 165. a first plate body; 166. a second plate body; 17. a movable plate; 171. an adjustment aperture; 172. a convex edge; 18. a driving mechanism; 181. a connecting rod; 182. a telescopic electric cylinder; 183. a movable shaft; 2. a burner; 3. and a heat exchange assembly.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The specific implementation mode of the invention is as follows:
a fan assembly 1, for example as shown in figure 1, is mainly arranged in a combustion heat exchange assembly of a gas water heater and is used for sucking high-temperature gas formed after a combustor 2 in the combustion heat exchange assembly is combusted, and draining the sucked high-temperature gas to a heat exchange assembly 3 for heat exchange and then discharging.
Referring to fig. 2, the blower assembly 1 includes a fume collecting case 11, and based on space limitation of the blower assembly 1 as a whole, it is necessary to recess the fume collecting case 11 while maintaining the structure of the air inlet 12 to free an installation space for the blower 13 (or other desired members), which results in the fume collecting case 11 including the air inlet 12 into which the air flows, the air outlet passage 14 communicating with the blower 13 and exhausting air, and the top wall plate 15 disposed at one side of the air outlet passage 14 to intersect with the direction of exhausting air.
When the interior of the combustion heat exchange assembly is exhausted upwards, the top wall plate 15 is arranged to extend transversely and is positioned on the right side of the exhaust passage 14, and the fan 13 for providing suction to the exhaust passage 14 is positioned above the top wall plate 15 (other required components can be installed at the position of the fan 13 according to actual requirements, and the fan 13 is positioned elsewhere and is communicated with the exhaust passage 14 through a pipeline).
At this time, the air inlet 12 is in aligned communication with the air exhaust passage 14 and the top wall plate 15 located above, wherein the aligned communication of the air inlet 12 with the top wall plate 15 means that a side surface of the top wall plate 15, for example, a passage for direct flow of air is present between the lower end surface of the top wall plate 15 and the air inlet 12 in fig. 2.
The following specifically describes the reason for the uneven drainage of the conventional fan assembly 1: under the suction action of the blower 13, the air which is guided up enters the air inlet 12 and is divided into two parts and enters the exhaust barrel of the blower 13 along two different air flow paths, wherein the first air flow path flows to the part of the air inlet 12 opposite to the exhaust passage 14 and directly flows into the exhaust passage 14, and finally flows out of the exhaust barrel of the blower 13; the second air flow path is to the portion of the air inlet 12 opposite the top wall plate 15, and after being blocked by the top wall plate 15, flows into the exhaust passage 14, and finally flows out of the exhaust funnel of the fan 13. Through the first path, the gas can smoothly flow in and out; while through the second path, the introduced air flow is blocked by the top wall plate 15, so that the air inflow speed is greatly slowed down, and the uneven drainage of the fan assembly 1 is caused.
Under the above-mentioned basis, prior art has add the vortex subassembly at the air intake, and the vortex subassembly is the platelike structure that the surface was provided with the ventilation hole generally, through setting up the air inlet end (i.e. air inlet 12) on two above-mentioned gas paths with the vortex subassembly, carries out the vortex to the air current on two above-mentioned gas paths to realize the air intake balance, its basic principle is: the air flow blocking effect of the turbulence assembly on the part of the air inlet 12 opposite to the exhaust passage 14 is larger than the air flow blocking effect of the turbulence assembly on the part of the air inlet 12 opposite to the top wall plate 15, so that the blocking effect of the top wall plate 15 on the air flow in the second air path is compensated, the air flow speeds of the two air paths are approximate, and the uniformity of the whole air inlet of the fan assembly 1 is balanced.
However, when the existing spoiler assembly is of a fixed structure and the combustion heat exchange assembly is under different combustion conditions, the air inflow and the initial flow velocity of the air inlet 12 are changed, the blocking effect of the spoiler assembly and the top wall plate 15 on the air flow respectively is also nonlinear changed along with the change of the air inflow and the initial flow velocity of the air flow, at this time, the air inflow balance originally realized by the spoiler assembly is broken, and the technical problem of uneven drainage is still caused, so that the fan assembly 1 with the spoiler assembly is poor in universality.
Compared with the prior art, the invention has the following improvements: the air flow obstruction degree on the two air flow guiding paths can be dynamically adjusted, so that the fan assembly 1 can ensure uniform and balanced flow guiding states under different combustion working conditions of the combustion heat exchange assembly, and the universality of the fan assembly 1 is improved.
Referring to fig. 3 and 4, in particular, the fan assembly 1 includes a spoiler 16, the spoiler 16 is disposed in the air inlet 12 and has a first region 161 aligned with the air outlet channel 14 and a second region 162 aligned with the top wall 15, the spoiler 16 is provided with a disturbance flow hole 163, the disturbance flow hole 163 is used for allowing air to flow from the air inlet 12 to the air outlet channel 14, and the fan assembly 1 further includes an adjusting mechanism for adjusting the ventilation area of the first region 161 and/or the ventilation area of the second region 162. During operation, the effective ventilation area of the first area 161 and/or the second area 162 can be adjusted by the adjusting mechanism, so that the purpose of dynamically adjusting the air flow blocking capacity of the first area 161 or the second area 162 is achieved, the flow rates at the tail ends of the two air paths can be consistent under different combustion working conditions, air intake balance is achieved, and the universality of the fan assembly 1 is enhanced.
Particularly, when the fan assembly 1 is applied to other systems or assemblies, such as a combustion heat exchange assembly of a gas water heater, the combustion stability and the heat efficiency of the gas water heater under different load working states can be improved, and noise and vibration generated by combustion of the gas water heater can be reduced.
The following describes the specific composition and connection of the spoiler 16 and the adjusting mechanism:
Embodiment one:
Referring to fig. 3 and 4, the number of the spoiler 16 is one, the first area 161 and the second area 162 are both formed on the spoiler 16, the adjusting mechanism includes a movable plate 17 and a driving mechanism 18, the movable plate 17 is disposed in the air inlet 12, the movable plate 17 is disposed in parallel with the spoiler 16 and is attached to the spoiler 16, a plurality of adjusting holes 171 aligned with the spoiler holes 163 are disposed on the movable plate 17, and the driving mechanism 18 is connected to the movable plate 17 and is used for driving the movable plate 17 to translate relative to the spoiler 16. When the combustion heat exchange assembly is in different combustion working conditions, the driving mechanism 18 drives the movable plate 17 to move relative to the spoiler 16, so that the adjusting holes 171 on the movable plate 17 are concentrically aligned with or deviated from the spoiler holes 163 on the spoiler 16, and the effective ventilation area of the spoiler holes 163 is adjusted, thereby achieving the purpose of dynamically adjusting the air flow blocking capacity of the first area 161 or the second area 162, enabling the flow rates of the two air paths to be consistent, and balancing the air intake uniformity.
The driving mechanism 18 comprises a connecting rod 181 and a telescopic member, the connecting rod 181 is movably arranged on the cigarette collecting shell 11 in a penetrating mode, the telescopic member is positioned on the outer wall of the cigarette collecting shell 11, one end of the connecting rod 181 stretches into the cigarette collecting shell 11 and is connected to the movable plate 17, and the other end of the connecting rod 181 stretches into the cigarette collecting shell 11 and is connected to the telescopic end of the telescopic member. When in use, the telescopic piece is driven by an external power supply and synchronously drives the movable plate 17 to horizontally extend and retract through the connecting rod 181, so that the movable plate 17 linearly translates relative to the spoiler 16, and the adjusting hole 171 is concentrically aligned with or deviated from the disturbing hole 163. In this embodiment, the telescopic member is driven by the telescopic cylinder 182, and has a simple structure and is less limited by the installation space than other traction telescopic mechanisms such as a rack-and-pinion telescopic structure and a rope-based traction telescopic mechanism. In addition, the side wall of the smoke collecting shell 11 is provided with a hole penetrated by the connecting rod 181, the hole is provided with a sealing ring, the connecting rod 181 is movably penetrated in the sealing ring, when the telescopic electric cylinder 182 drives the connecting rod 181 to stretch, the connecting rod 181 can radially abut against the sealing ring, so that the smoke in the smoke collecting shell 11 is prevented from leaking outwards, and the air tightness of the smoke collecting shell 11 is enhanced.
The driving mechanism 18 drives the movable plate 17 to move to adjust the areas of different areas of the spoiler 16, and besides the form of the telescopic piece matched with the connecting rod 181 to drive the spoiler 16 to stretch and retract and horizontally linearly translate, the form of the motor that the movable plate 17 is driven to horizontally swing or circumferentially rotate relative to the spoiler 16 can also be adopted, however, the implementation structure of horizontally swinging or circumferentially rotating causes serious air tightness problems or easily causes obstruction to the inlet air flow and influences the exhaust efficiency, so the form of the telescopic piece matched with the connecting rod 181 to drive the spoiler 16 to stretch and retract and horizontally linearly translate is preferable.
For easy to assemble and disassemble and maintain, the connecting rod 181 is detachably connected to the movable plate 17, in this embodiment, screw holes are formed in the connecting rod 181 and the movable plate 17, and the connecting rod 181 is connected to the movable plate 17 through a screw hole matched with a bolt.
In this embodiment, the adjusting mechanism drives the movable plate 17 to translate relative to the spoiler 16 through the driving mechanism 18, so it should be appreciated by those skilled in the art after reading the above-mentioned principle: according to practical requirements, the first area 161 and the second area 162 of the spoiler 16 may be provided with the flow disturbing holes 163, and the driving mechanism 18 may drive the movable plate 17 to translate relative to the first area 161 or the second area 162, so as to dynamically adjust the effective ventilation area of the first area 161 or the second area 162, and further adjust the gas flow rate on the first gas path or the second gas path.
However, considering that the above-mentioned second flow guiding path is more complex in the variation of the gas flow velocity under different combustion conditions and is more difficult to adjust, compared with the first flow guiding path, the gas needs to be blocked from flowing into the exhaust channel 14 through the top wall plate 15 after passing through the gas inlet 12, and therefore, in order to reduce the design difficulty and the test production cost, the distribution of the turbulence holes 163 and the orientation setting and adjusting targets of the movable plate 17 are defined in the embodiment: the first area 161 and the second area 162 are both provided with a disturbing hole 163, the movable plate 17 is attached to the first area 161 of the spoiler 16, and the driving mechanism 18 is connected with the movable plate 17 and drives the movable plate 17 to translate on the first area 161 of the spoiler 16. When the fan assembly works, the driving mechanism 18 drives the movable plate 17 to translate relative to the first area 161 of the spoiler 16, so that the adjusting holes 171 on the movable plate 17 are concentrically aligned with or deviated from the spoiler holes 163 of the first area 161, thereby increasing or reducing the flow rate on the first air flow path, enabling the flow rate of the first path to approach the second path, reducing the adjustment difficulty and better ensuring the air intake balance precision of the fan assembly 1.
In the present embodiment, the aperture of the turbulence hole 163 of the second area 162 is larger than the aperture distance of the turbulence hole 163 of the first area 161, so that the ventilation area of the second area 162 is still larger than the ventilation area of the first area 161 under the condition that the adjusting hole 171 on the movable plate 17 can be completely aligned with the turbulence hole 163 on the first area 161, thereby realizing air intake balance and increasing the turbulence area and exhaust efficiency of the turbulence plate 16.
The following steps are provided: taking the example that the aperture of the turbulence holes 163 in the second region 162 is larger than the aperture distance of the turbulence holes 163 in the first region 161, the working principle of this embodiment will be described in detail: the method comprises the following steps: when the combustion heat exchange assembly is in a low-load working state, the amount of smoke and the initial gas flow rate generated by the burner 2 are smaller, the blocking degree of the top wall plate 15 to the inlet gas flow is also smaller, the adjusting holes 171 on the movable plate 17 are concentrically aligned with the turbulence holes 163 on the first region 161, so that the turbulence holes 163 on the first region 161 are completely opened, at this time, the effective ventilation area of the first region 161 is smaller than the effective ventilation area of the second region 162 because the aperture of the turbulence holes 163 of the second region 162 is larger than the aperture distance of the turbulence holes 163 of the first region 161, i.e., the flow weakening degree of the inlet gas flow of the part of the first region 161 opposite to the inlet 12 and the top wall plate 15 is larger than the flow weakening degree of the inlet gas flow of the part of the second region 162 opposite to the inlet 12 and the top wall plate 15, so that the gas flow rates of the two inlet gas paths are always, and the fan assembly 1 can realize the balance and uniform drainage of the whole inlet gas.
When the working load of the combustion heat exchange assembly is lifted, the amount of smoke and the initial gas flow rate generated by the burner 2 are synchronously increased, so that the blocking degree of the first region 161, the second region 162 and the top wall plate 15 to the inlet gas flow is also increased in a nonlinear manner, and the flow weakening degree on the second gas flow path reversely exceeds the first gas flow path, and the movable plate 17 can be driven by the driving mechanism 18 to translate, so that the adjusting hole 171 on the movable plate 17 deviates from the turbulent hole 163 of the first region 161, the shielding degree of the movable plate 17 to the turbulent hole 163 is increased, the effective ventilation area of the first region 161 is reduced, the inverse difference of the effective ventilation areas of the first region 161 and the second region 162 is increased, the flow weakening degree of the inlet gas flow on the opposite part of the inlet 12 and the exhaust channel 14 is increased, the flow weakening degree on the two gas flow paths is re-leveled, the fan assembly 1 is restored to the balance of the whole inlet gas, and the uniform beverage is continued. Similarly, when the working load of the combustion heat exchange assembly is reduced, the driving mechanism 18 drives the movable plate 17 to move reversely, so that the air intake balance can be realized again.
Further, in the present embodiment, the movable plate 17 is positioned on the side of the spoiler 16 close to the exhaust passage 14 because: considering that the spoiler 16 can adjust the gas flow rates on the two groups of gas drainage paths, besides realizing air intake balance, the air flow flowing through the spoiler 16 can be filtered through the structure of the interference flow hole 163, partial impurities in the air flow can be screened and filtered out, the part of filtered impurities can be prevented from entering the fan 13 along with the air flow from the exhaust channel 14, further, the influence on the operation and service life of the fan 13 is avoided, the impurities filtered by the spoiler hole 163 are mainly deposited on the surface of the spoiler 16, which is far away from the exhaust channel 14, namely, the lower surface of the spoiler 16 in the figure, and by positioning the movable plate 17 on the side of the spoiler 16, which is close to the exhaust channel 14, the impurities deposited on the surface of the movable plate 17 can be prevented from being scratched and pushed in the translation process relative to the spoiler 16, so that the impurities are separated from the spoiler 16 and fall back into the combustion chamber, the combustion efficiency in the combustion chamber is reduced, and even the blockage of the air path is caused.
However, positioning the movable plate 17 on the side of the spoiler 16 close to the exhaust passage 14 based on the above consideration poses another problem: when the combustion condition in the combustor 2 is severe, the driving mechanism 18 drives the movable plate 17 to block the turbulence hole 163 on the first area 161 to a greater extent, that is, the movable plate 17 also participates in air flow blocking, so that when the air flow sequentially passes through the turbulence hole 163 and the adjusting hole 171, an unstable longitudinal force is applied to the movable plate 17, so that the movable plate 17 is longitudinally dithered, a variable interval channel is formed between the movable plate 17 and the turbulence plate 16, thereby affecting the air blocking effect of the turbulence plate 16 and reducing the drainage uniformity.
In this embodiment, the fan assembly 1 is further provided with a limiting structure, and the limiting structure is connected with the movable plate 17 and used for longitudinally limiting the movable plate 17, so that the movable plate 17 is prevented from being impacted by air flow and longitudinally deviated from the spoiler 16 under the high-load working condition, and the spoiler stability of the spoiler assembly is improved. Specifically, the limiting structure includes a clamping groove 164 formed on the spoiler 16, the clamping groove 164 is formed by extending an upper surface of the spoiler 16 toward the exhaust channel 14, and a convex edge 172 formed on the movable plate 17, the convex edge 172 is slidably clamped in the clamping groove 164, so that the movable plate 17 is slidably positioned on the spoiler 16, and the convex edge 172 cooperates with the clamping groove 164 to longitudinally limit the movable plate 17.
In addition to the lateral movement adjustment scheme provided in the first embodiment, the present embodiment further provides another specific composition and connection manner of the spoiler 16 and the adjustment mechanism.
Example two
Referring to fig. 5 and 6, the number of the spoilers 16 is two and the spoilers are respectively a first plate 165 and a second plate 166, the first area 161 is formed on the first plate 165, the second area 162 is formed on the second plate 166, and the adjusting mechanism is connected with the second plate 166 to drive the second plate 166 to swing relative to the smoke collecting shell 11, so as to adjust the ventilation area of the second area 162.
Specifically, the adjusting mechanism includes a movable shaft 183 and a rotating motor, the movable shaft 183 is rotatably positioned in the air inlet 12 and is disposed at one end of the air inlet 12 far away from the first area 161, one end of the second plate 166 far away from the first plate 165 is connected to the movable shaft 183, the rotating motor is positioned on the outer wall of the smoke collecting shell 11, and one end of the movable shaft 183 extends out of the smoke collecting shell 11 and is connected to the output end of the rotating motor.
The principle of this embodiment is: when the combustion heat exchange assembly is in a low-load working state, the amount of smoke and the initial gas flow rate generated by the burner 2 are small, the blocking degree of the top wall plate 15 to the inlet gas flow is also small, at this time, under the rotation damping effect of the rotating motor, the second plate 166 is flush with the first plate 165, and the first area 161 and the second area 162 block the inlet gas flow of the part of the inlet 12 opposite to the exhaust channel 14 and the part of the inlet 12 opposite to the top wall plate 15 respectively through the turbulence holes 163 with corresponding hole pitches respectively, so that the flow rates of the two gas paths tend to be consistent, and the uniformity of the whole inlet gas of the fan assembly 1 is realized.
When the combustion heat exchange assembly is in a high-load working state, the amount of smoke and the initial gas flow rate generated by the combustor 2 are increased, so that the blocking degree of the first area 161, the second area 162 and the top wall plate 15 to the inlet gas flow is also increased in a nonlinear manner, finally, the flow weakening degree on the second gas flow path is larger than that of the first gas flow path, the movable shaft 183 can be driven by the rotating motor to rotate, the second plate 166 swings relative to the smoke collecting shell 11, one end of the second plate 166, which is close to the first plate 165, moves towards the inlet direction, one end of the second plate 166, which is close to the first plate 165, is matched with the first plate 165 to form an opening for drainage, on the basis of not changing the ventilation area of the first area 161, the opening is formed by swinging the second plate 166, and the gas originally partially discharged into the exhaust channel 14 directly through the opening, so that the ventilation area of the second area 162 is increased, the fluid blocking effect of the second area 162 on the opposite part of the air inlet 12 and the top wall plate 15 is weakened, finally, the flow balancing degree of the two flow weakening parts on the two gas paths is balanced again, and the whole air inlet assembly is realized, and the uniformity is balanced.
The second specific embodiment of the invention is as follows:
The utility model provides a burning heat transfer subassembly, this burning heat transfer subassembly specifically includes fan subassembly 1 among the first preferred embodiment, still include combustor 2 and heat exchange subassembly 3, when burning heat transfer subassembly is in different burning operating mode, but adjustment mechanism in fan subassembly 1 adjusts the ventilation area in the different regions of spoiler 16, realizes carrying out even drainage to the high temperature gas that forms after the burning of combustor 2, makes the high temperature gas that the different operating modes of combustor 2 formed all can flow through heat exchange subassembly 3 uniformly, optimizes whole heat transfer effect, the commonality is strong.
In addition, still include the controller in this burning heat transfer subassembly, be used for detecting the induction system of combustor 2 combustion mode, the input of controller is connected induction system, the output of controller is connected adjustment mechanism. Through the above design for this burning heat transfer subassembly is in the course of the work, and accessible sensing mechanism feeds back the combustion condition of combustor 2 to the controller, works by controller control adjustment mechanism, automatically regulated spoiler 16's first region 161 and the ventilation area of second region 162 realize intelligent regulation, improve user's use experience.
In this embodiment, the sensing mechanism may be one or a combination of a temperature sensor, a pressure sensor or a smoke sensor, for detecting the water temperature of the heat exchange assembly 3, the pressure in the burner 2 and the concentration of the generated smoke, respectively.
Third embodiment of the present invention:
a gas water heater specifically includes a combustion heat exchange assembly in a second preferred embodiment.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (12)
1. A fan assembly for conducting exhaust gas in a combustion heat exchange assembly having a burner (2), a heat exchange assembly (3), characterized in that: the fan assembly (1) comprises:
A smoke collecting shell (11) which is provided with an air inlet (12) for air inflow, an exhaust channel (14) communicated with a fan (13) and used for exhausting, and a top wall plate (15) which is arranged on one side of the exhaust channel (14) and is intersected with the air inflow direction, wherein the air inlet (12) is simultaneously communicated with the exhaust channel (14) and the top wall plate (15) in a counterpoint mode;
a spoiler (16) provided in the intake port (12) and having a first region (161) aligned with the exhaust passage (14) and a second region (162) aligned with the top wall plate (15), wherein the first region (161) and the second region (162) are provided with spoiler holes (163) through which gas flows from the intake port (12) to the exhaust passage (14);
The first area (161) and the second area (162) are respectively formed on two ends of the spoiler (16);
The adjusting mechanism comprises a movable plate (17) and a driving mechanism (18), wherein the movable plate (17) is attached to the spoiler (16), and an adjusting hole (171) aligned with the spoiler hole (163) is formed in the movable plate (17); the driving mechanism (18) is connected with the movable plate (17) and is used for driving the movable plate (17) to move relative to the spoiler (16), adjusting the ventilation area of the first area (161) and/or the ventilation area of the second area (162), balancing the gas flow rates on two gas paths from the first area (161) to the exhaust channel (14) and from the second area (162) to the exhaust channel (14) and realizing uniform drainage.
2. The blower assembly of claim 1, wherein: the movable plate (17) is attached to a first area (161) of the spoiler (16), and the driving mechanism (18) drives the movable plate (17) to move on the first area (161).
3. The blower assembly of claim 2, wherein: the aperture of the turbulence hole (163) of the second region (162) is larger than the aperture of the turbulence hole (163) of the first region (161).
4. The blower assembly of claim 1, wherein: the driving mechanism (18) comprises a connecting rod (181) movably penetrating through the smoke collecting shell (11) and a telescopic piece positioned on the outer wall of the smoke collecting shell (11), one end of the connecting rod (181) is connected to the movable plate (17), and the other end of the connecting rod is connected to the telescopic end of the telescopic piece.
5. The fan assembly of claim 4, wherein: the telescopic member is a telescopic electric cylinder (182).
6. The fan assembly of claim 4, wherein: the side wall of the smoke collecting shell (11) is provided with a hole for the connecting rod (181) to penetrate, the hole is provided with a sealing ring, and the connecting rod (181) is movably penetrated through the sealing ring.
7. The fan assembly of claim 4, wherein: the connecting rod (181) is detachably connected with the movable plate (17).
8. The fan assembly of any of claims 1-7, wherein: the movable plate (17) is arranged on one side of the spoiler (16) close to the exhaust passage (14).
9. The blower assembly of claim 8, wherein: the fan assembly (1) is further provided with a limiting structure, and the limiting structure is connected with the movable plate (17) and used for longitudinally limiting the movable plate (17).
10. The blower assembly of claim 9, wherein: the limiting structure comprises a clamping groove (164) formed on the spoiler (16) and a convex edge (172) formed on the movable plate (17), wherein the convex edge (172) is slidably clamped in the clamping groove (164) and used for longitudinally limiting the movable plate (17).
11. A combustion heat exchange assembly, characterized by: comprising a fan assembly (1) according to any of claims 1-10, a burner (2), and a heat exchange assembly (3); the intelligent combustion control device is characterized by further comprising a controller and an induction mechanism for detecting the combustion working condition of the combustor (2), wherein the input end of the controller is connected with the induction mechanism, and the output end of the controller is connected with the adjusting mechanism.
12. A gas water heater, characterized in that: comprising a combustion heat exchange assembly according to claim 11.
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| CN207911843U (en) * | 2018-03-06 | 2018-09-28 | 陈立栋 | A kind of fixing device of fishing box accessory |
| CN115111624A (en) * | 2022-06-30 | 2022-09-27 | 杭州老板电器股份有限公司 | Air quantity control device and system for range hood |
| CN219691829U (en) * | 2023-05-24 | 2023-09-15 | 杭州老板电器股份有限公司 | Fan subassembly, burning heat transfer subassembly and gas heater with spoiler |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980047181A (en) * | 1996-12-14 | 1998-09-15 | 이영서 | Primary air control plate of gas boiler |
| KR100272983B1 (en) * | 1998-02-28 | 2000-11-15 | 최준식 | A briquet boiler |
| CN110542201A (en) * | 2019-09-12 | 2019-12-06 | 珠海格力电器股份有限公司 | Wall-mounted stove |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207911843U (en) * | 2018-03-06 | 2018-09-28 | 陈立栋 | A kind of fixing device of fishing box accessory |
| CN115111624A (en) * | 2022-06-30 | 2022-09-27 | 杭州老板电器股份有限公司 | Air quantity control device and system for range hood |
| CN219691829U (en) * | 2023-05-24 | 2023-09-15 | 杭州老板电器股份有限公司 | Fan subassembly, burning heat transfer subassembly and gas heater with spoiler |
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