CN110553404B - Air inlet pressure stabilizing device of fan and gas water heater - Google Patents
Air inlet pressure stabilizing device of fan and gas water heater Download PDFInfo
- Publication number
- CN110553404B CN110553404B CN201810566265.6A CN201810566265A CN110553404B CN 110553404 B CN110553404 B CN 110553404B CN 201810566265 A CN201810566265 A CN 201810566265A CN 110553404 B CN110553404 B CN 110553404B
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- China
- Prior art keywords
- pipe section
- air inlet
- fan
- expansion
- rectifying
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- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 230000000694 effects Effects 0.000 abstract description 11
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
- F23L5/02—Arrangements of fans or blowers
-
- 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fan air inlet pressure stabilizing device and a gas water heater, comprising an air inlet pipe connected with an air inlet of a fan, wherein the air inlet pipe comprises a rectifying pipe section and an expansion pipe section connected with an outlet of the rectifying pipe section, and a pipe cavity of the rectifying pipe section is gradually reduced along the air inlet direction in the rectifying pipe section; the cross-sectional area of the expansion pipe section is larger than that of the smallest port of the rectifying pipe section, and the unilateral maximum depth of the inner wall surface of the expansion pipe section relative to the smallest port is 1.5-3 times of the width of the expansion pipe section along the air inlet direction. The fan air inlet pressure stabilizing device ensures that the ratio of the unilateral maximum depth of the inner wall surface of the expansion pipe section relative to the minimum port to the width of the expansion pipe section along the air inlet direction is 1.5-3. Therefore, air enters the expansion pipe section with a specific proportion after being rectified from the rectifying pipe section, so that most of kinetic energy is lost after the air moves outwards in the radial direction, the effect of energy dissipation expansion is achieved, and the problem that the whole machine shakes due to unstable pressure of an air inlet is solved.
Description
Technical Field
The invention relates to the field of fans of gas water heaters, in particular to a fan air inlet pressure stabilizing device and a gas water heater.
Background
In the strong drum type balancing machine of the gas water heater, under the condition of combustion, the pressure change generated by flame combustion can be increased sharply, and the pressure energy of the strong drum type balancing machine can cause shaking of the whole machine. Fig. 1 is a characteristic curve of wind pressure P and wind volume Q of a fan, and operation curves S1, S2, S3 are characteristic curves of a relationship between wind volume Q and wind pressure P when the gas water heater is in use. When the wind pressure of the air inlet and outlet of the fan is high, the wind pressure is unstable and easy to fluctuate. When the pressure generated by combustion is large, the fan needs to provide large wind pressure, so that the operation characteristic curve of the gas water heater moves towards 0 bit, the fan works in an unstable area, and the pressure is suddenly dithered, as shown by an operation curve S3, particularly when the shell is unstable, the dithering is more intense.
Disclosure of Invention
The invention mainly aims to provide a fan air inlet voltage stabilizing device, which aims to solve the technical problem of shaking of the whole machine caused by rapid pressure change of an air inlet of a fan.
In order to achieve the purpose, the air inlet pressure stabilizing device of the fan comprises an air inlet pipe connected with an air inlet of the fan, wherein the air inlet pipe comprises a rectifying pipe section and an expansion pipe section connected with an outlet of the rectifying pipe section, and a pipe cavity of the rectifying pipe section is gradually reduced along the air inlet direction in the rectifying pipe section; the cross-sectional area of the expansion pipe section is larger than that of the smallest port of the rectifying pipe section, the unilateral maximum depth of the inner wall surface of the expansion pipe section relative to the smallest port is D, the width of the expansion pipe section along the air inlet direction is B, and the D is 1.5-3 times of the B.
Preferably, the expansion pipe section protrudes from the rectifying pipe section in a forward direction and a reverse direction, respectively, in a first direction, the first direction being perpendicular to the intake direction.
Preferably, the cross-sectional width of the expansion pipe section is gradually reduced from the center of the expansion pipe section along the forward and reverse directions of the first direction.
Preferably, the intake direction coincides with the horizontal direction.
Preferably, the air inlet pipe further comprises a connecting pipe section, one end of the connecting pipe section is connected with the expansion pipe section, the other end of the connecting pipe section is connected with the air inlet of the fan, and the cross-sectional area of the expansion pipe section is larger than that of the connecting pipe section.
Preferably, the connecting pipe section is attached to the pipe wall surface of the expansion pipe section along the second direction and far away from the pipe wall surface of the air inlet of the fan, and the second direction, the first direction and the air inlet direction are perpendicular to each other.
Preferably, the connecting pipe section comprises a first connecting pipe and a second connecting pipe which are connected in a bending shape, the first connecting pipe is connected with the expansion pipe section along the air inlet direction, and the second connecting pipe is connected with an air inlet of the fan.
Preferably, the connecting pipe section further comprises a third connecting pipe, one end of the third connecting pipe is connected with the first connecting pipe, and the other end of the third connecting pipe is connected with the second connecting pipe.
Preferably, the rectifying tube section is in a horn shape with a convex cambered surface on the inner wall surface.
The invention also provides a gas water heater, which comprises a fan and a fan air inlet pressure stabilizing device, wherein the fan air inlet pressure stabilizing device comprises an air inlet pipe connected with an air inlet of the fan, the air inlet pipe comprises a rectifying pipe section and an expansion pipe section connected with an outlet of the rectifying pipe section, and a pipe cavity of the rectifying pipe section is gradually expanded along the air inlet direction in the pipe cavity and away from the expansion pipe section; the cross-sectional area of the expansion pipe section is larger than that of the smallest port of the rectifying pipe section, the unilateral maximum depth of the inner wall surface of the expansion pipe section relative to the smallest port is D, the width of the expansion pipe section along the air inlet direction is B, and the D is 1.5-3 times of the B.
According to the fan air inlet pressure stabilizing device, the rectifying pipe section and the expansion pipe section are arranged in a tapered mode along the air inlet direction, the cross section area of the expansion pipe section is larger than the cross section area of the smallest port of the rectifying pipe section, and the ratio of the unilateral maximum depth of the inner wall surface of the expansion pipe section relative to the smallest port to the width of the expansion pipe section along the air inlet direction is 1.5-3. Therefore, when air flows in from the air inlet pipe, the air flows in through the rectifying pipe section and then flows through the expansion pipe section with a specific proportion, the air moves outwards along the radial direction due to the fact that the cross section area of the expansion pipe section is larger than the cross section area of the minimum port of the rectifying pipe section, most of kinetic energy of the air is lost, the effect of energy dissipation and expansion is achieved, the pressure of the air inlet of the fan is stabilized, and the problem that the whole machine shakes due to unstable pressure of the air inlet is solved. The air inlet pressure stabilizing device of the fan is simple in structure and strong in adaptability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, 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 structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a characteristic curve of wind volume and wind pressure in a common fan;
FIG. 2 is a graph showing characteristics of wind volume and wind pressure in a fan using the fan air inlet pressure stabilizing device of the present invention;
FIG. 3 is a schematic diagram of an embodiment of a fan air intake pressure stabilizing device according to the present invention;
FIG. 4 is a schematic front view of the intake air pressure stabilizing device of the blower of FIG. 3;
FIG. 5 is a schematic cross-sectional view taken along line V-V in FIG. 4;
FIG. 6 is a schematic cross-sectional view taken along line VI-VI of FIG. 4;
FIG. 7 is a schematic cross-sectional view taken along line VII-VII of FIG. 4;
FIG. 8 is a schematic cross-sectional view taken along line VIII-VIII in FIG. 7;
FIG. 9 is a schematic diagram of an embodiment of a fan using the fan air intake pressure stabilizer of the present invention.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 1 | Air inlet pipe | 131 | First connecting pipe |
| 11 | Rectifying pipe section | 132 | Second connecting pipe |
| 12 | Expansion pipe section | 133 | Third connecting pipe |
| 13 | Connecting pipe section |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. 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 be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides an air inlet pressure stabilizing device of a fan.
In the embodiment of the invention, as shown in fig. 3 to 4, the air inlet pressure stabilizing device of the fan comprises an air inlet pipe 1 connected with an air inlet of the fan, wherein the air inlet pipe 1 comprises a rectifying pipe section 11 and an expansion pipe section 12 connected with an outlet of the rectifying pipe section 11, and a pipe cavity of the rectifying pipe section 11 is gradually reduced along the air inlet direction in the pipe cavity; the cross-sectional area of the expansion pipe section 12 is larger than the cross-sectional area of the smallest port of the rectifying pipe section 11, the unilateral maximum depth of the inner wall surface of the expansion pipe section 12 relative to the smallest port is D, the width of the expansion pipe section 12 along the air inlet direction is B, and the D is 1.5-3 times of the B.
In this embodiment, the blower has an air inlet, and is generally applied to a strong drum type gas water heater or other related structures with a blower. The air inlet pipe 1 can be connected with the air inlet of the fan through a flange, or can be directly arranged integrally with the inlet of the fan. The lumen of the rectifying tube section 11 is tapered along the air inlet direction in the rectifying tube section, so that the air quantity of the air inlet can be increased, and the rectifying tube section 11 can also play a role in rectifying when air flows in along the inner cavity of the rectifying tube section 11. Preferably, the rectifying tube section 11 has a horn shape with an inner wall surface being a convex arc surface. Therefore, the air quantity of the air inlet is larger, and the rectifying effect is better. The shape of the expansion pipe section 12 is not limited, and the cross-sectional shape may be circular, elliptical, disc-shaped or other, and it is only required that the cross-sectional area of the rectifying pipe section 11 is larger than the cross-sectional area of the smallest port of the finishing pipe section and the ratio of the single-side maximum depth of the inner wall surface of the expansion pipe section 12 relative to the smallest port to the width of the expansion pipe section 12 along the air intake direction is 1.5-3.
After the air flows into the minimum port of the rectifying tube section 11, the air enters the expansion tube section 12, and the sectional area of the expansion tube section 12 is larger than that of the minimum port of the rectifying tube section 11, so that the air moves outwards along the inner diameter of the expansion tube section 12 after entering the expansion tube section 12, and part of kinetic energy of air molecules is lost due to sudden expansion, thereby achieving the effect of energy dissipation expansion.
As shown in fig. 1 to 2, when the ratio of the single-side maximum depth of the inner wall surface of the expansion pipe section 12 relative to the minimum port to the width of the expansion pipe section 12 along the air inlet direction is 1.5 to 3, under the ratio, when the pressure generated by combustion is large, the fan provides large air pressure, the operation characteristic curve of the gas water heater moves to 0 position and approaches to a straight line, as shown in S4, so that the fluctuation range of the pressure of the air inlet of the fan is small, the fluctuation range is smoother, the resonance phenomenon is not easy to generate, and the problem of shaking of the whole machine caused by the abrupt change of the pressure of the air inlet of the fan is eliminated. Preferably, when the ratio of the single-side maximum depth of the inner wall surface of the expansion pipe section 12 relative to the minimum port to the width of the expansion pipe section 12 along the air inlet direction is 2, the fluctuation range of the pressure of the air inlet of the fan is smaller, and the pressure stabilizing effect of the air inlet pressure stabilizing device of the fan is better.
According to the fan air inlet pressure stabilizing device, the rectifying pipe section 11 and the expansion pipe section 12 are arranged, so that the rectifying pipe section 11 is gradually reduced along the air inlet direction, the cross section area of the expansion pipe section 12 is larger than the cross section area of the smallest port of the rectifying pipe section 11, and the ratio of the unilateral maximum depth of the inner wall surface of the expansion pipe section 12 relative to the smallest port to the width of the expansion pipe section 12 along the air inlet direction is 1.5-3. Therefore, when air flows in from the air inlet pipe 1, the air flows in through the rectifying pipe section 11 and then flows through the expansion pipe section 12 with a specific proportion, and the cross section area of the expansion pipe section 12 is larger than the cross section area of the smallest port of the rectifying pipe section 11, so that the air moves outwards along the radial direction, and most of kinetic energy of the air is lost, thereby achieving the effect of energy dissipation and expansion, stabilizing the pressure of the air inlet of the fan, and solving the problem of shaking of the whole machine due to unstable pressure of the air inlet.
Further, referring to fig. 5 to 8, the expansion pipe section 12 protrudes from the rectifying pipe section 11 in the forward and reverse directions along the first direction, which is perpendicular to the air intake direction. Thus, the portion of the expanded pipe section 12 protruding from the rectifying pipe section 11 has a unilateral maximum depth D with respect to the smallest port, forming a ratio of 1.5 to 3 to the width B of the expanded pipe section 12. Other parts of the expansion pipe section 12 can be properly reduced, and the functions of avoiding the integral structure of the fan and giving way to other pipeline structures can be achieved. The rectifying tube section 11 is protruded in the positive and negative directions along the first direction, so that the energy dissipation expansion effect of air is better, and the whole fan is more stable.
Preferably, in order to make the avoidance effect better, the cross-sectional width of the expansion pipe section 12 is tapered from the center of the expansion pipe section 12 in the forward and backward directions of the first direction. The setting can also make the air get into expansion pipe section 12 from the minimum port of rectification pipe section 11 like this, and when the internal diameter of expansion pipe section 12 outwards moved, the number of times that the air contacted and collided the internal face of expansion pipe section 12 was more for the kinetic energy loss of air at expansion pipe section 12 is more, thereby the energy dissipation inflation effect is better, and fan air inlet voltage regulator's steady voltage effect is better.
Further, the intake direction coincides with the horizontal direction. So that the air intake direction coincides with the horizontal direction, and thus the overall installation direction of the rectifying pipe section 11 and the expansion pipe section 12 coincides with the horizontal direction. For the blower fan of the strong drum type water heater, the air outlet of the blower fan is vertically upwards, so that the integral installation direction of the rectifying pipe section 11 and the expansion pipe section 12 is consistent with the horizontal direction, the integral structure of the blower fan is more compact, and the air inlet is smoother.
Further, the air inlet pipe 1 further comprises a connecting pipe section 13, one end of the connecting pipe section 13 is connected with the expansion pipe section 12, the other end of the connecting pipe section 13 is connected with the air inlet of the fan, and the cross-sectional area of the expansion pipe section 12 is larger than that of the connecting pipe section 13. In this embodiment, one end of the connecting pipe section 13 may be connected to the air inlet of the blower through a flange, or may be integrally provided with the air inlet of the blower. The cross-sectional area of the expansion pipe section 12 is larger than that of the connecting pipe section 13, so that the energy is dissipated and expanded by the expansion pipe section 12 and then intensively flows into the connecting pipe section 13, and the sudden shrinkage of the pipeline further plays a role in dissipating the energy. Preferably, the inner diameter of the connecting tube section 13 is adapted to the aperture size of the fan inlet.
Further, the connecting pipe section 13 is attached to the pipe wall surface of the expansion pipe section 12 along the second direction and far from the pipe wall surface of the air inlet of the fan, and the second direction, the first direction and the air inlet direction are perpendicular to each other. Therefore, the wall surface of the air inlet pressure stabilizing device of the fan, which is in the second direction and far away from the direction of the fan such as the air inlet, is approximately on the same plane along the air inlet direction, so that the whole structure is more compact and attractive, and the effect of avoiding other structures can be achieved. In order to make the structure more compact and the avoidance effect better, it is preferable that the first connecting pipe 131, the expansion pipe section 12 and the axis of the rectifying pipe section 11 are arranged parallel to each other.
Further, the connecting pipe section 13 includes a first connecting pipe 131 and a second connecting pipe 132, which are connected in a bent shape, the first connecting pipe 131 is connected to the expansion pipe section 12 along the air inlet direction, and the second connecting pipe 132 is connected to the air inlet of the fan.
In this embodiment, the bent first connecting tube 131 and second connecting tube 132 make the structure of the whole connecting tube more compact, specifically, the second connecting tube 132 is connected with the air inlet of the fan along the second direction, and the axes of the rectifying tube segment 11, the expansion tube segment 12 and the first connecting tube 131 are all perpendicular to the axis of the second connecting tube 132. It is understood that the second connection pipe 132 may be connected to the air inlet of the blower through a flange, or may be integrally disposed with the air inlet of the blower. Preferably, the connection pipe section 13 further includes a third connection pipe 133, and one end of the third connection pipe 133 is connected to the first connection pipe 131 and the other end is connected to the second connection pipe 132. The third connection is used to connect the first connection pipe 131 and the second connection pipe 132, so that the whole structure is more compact and the function of avoiding is achieved.
The invention also provides a gas water heater which comprises a fan and a fan air inlet pressure stabilizing device, wherein the specific structure of the fan air inlet pressure stabilizing device refers to the embodiment, and as the gas water heater adopts all the technical schemes of all the embodiments, the gas water heater at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted. The air inlet pressure stabilizing device of the fan comprises an air inlet pipe 1 connected with an air inlet of the fan, wherein the air inlet pipe 1 comprises a rectifying pipe section 11 and an expansion pipe section 12 connected with an outlet of the rectifying pipe section 11, and a pipe cavity of the rectifying pipe section 11 is gradually reduced along the air inlet direction in the pipe cavity; the cross-sectional area of the expansion pipe section 12 is larger than the cross-sectional area of the smallest port of the rectifying pipe section 11, the unilateral maximum depth of the inner wall surface of the expansion pipe section 12 relative to the smallest port is D, the width of the expansion pipe section 12 along the air inlet direction is B, and the D is 1.5-3 times of the B.
In this embodiment, the fan is installed below the gas water heater, as shown in fig. 9, the fan air inlet pressure stabilizing device is connected with the air inlet of the fan, when the gas water heater works and the pressure generated by combustion is larger, the pressure of air entering the air inlet of the fan after passing through the fan pressure stabilizing device is more stable, and the full-load vibration of the water heater is eliminated, so that the shaking phenomenon of the whole machine of the gas water heater is eliminated.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. The air inlet pressure stabilizing device of the fan comprises an air inlet pipe connected with an air inlet of the fan, and is characterized by comprising a rectifying pipe section and an expansion pipe section connected with an outlet of the rectifying pipe section, wherein a pipe cavity of the rectifying pipe section is gradually reduced along the air inlet direction in the rectifying pipe section; the cross-sectional area of the expansion pipe section is larger than that of the smallest port of the rectifying pipe section, the unilateral maximum depth of the inner wall surface of the expansion pipe section relative to the smallest port is D, the width of the expansion pipe section along the air inlet direction is B, and the D is 1.5-3 times of the B.
2. The air intake pressure stabilizing device of blower fan according to claim 1, wherein the forward and reverse directions of the expansion pipe section respectively protrude out of the rectifying pipe section in a first direction, and the first direction is perpendicular to the air intake direction.
3. The air intake pressure stabilizing device of fan as claimed in claim 2, wherein the cross-sectional width of the expansion pipe section is gradually reduced from the center of the expansion pipe section along the forward and reverse directions of the first direction.
4. A fan inlet air pressure stabilizing device as claimed in any one of claims 1 to 3, wherein the inlet air direction is coincident with the horizontal direction.
5. The air intake pressure stabilizing device of fan as claimed in claim 2, wherein the air intake pipe further comprises a connecting pipe section, one end of the connecting pipe section is connected with the expansion pipe section, the other end is connected with the air intake of the fan, and the cross-sectional area of the expansion pipe section is larger than that of the connecting pipe section.
6. The air intake pressure stabilizing device of blower of claim 5, wherein the connecting pipe section is attached to the pipe wall of the expansion pipe section along a second direction and far from the air inlet of the blower, and the second direction, the first direction and the air intake direction are perpendicular to each other.
7. The air intake pressure stabilizing device of a blower according to claim 5 or 6, wherein the connecting pipe section includes a first connecting pipe and a second connecting pipe which are connected in a bent shape, the first connecting pipe is connected to the expansion pipe section along the air intake direction, and the second connecting pipe is connected to an air inlet of the blower.
8. The air intake pressure stabilizing device of blower of claim 7, wherein the connecting pipe section further comprises a third connecting pipe, one end of the third connecting pipe is connected to the first connecting pipe, and the other end is connected to the second connecting pipe.
9. The air intake pressure stabilizing device of fan as claimed in claim 1, wherein the rectifying tube section is in a horn shape with an inner wall surface being a convex arc surface.
10. A gas water heater comprising a fan, further comprising a fan air intake pressure stabilizing device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810566265.6A CN110553404B (en) | 2018-06-01 | 2018-06-01 | Air inlet pressure stabilizing device of fan and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810566265.6A CN110553404B (en) | 2018-06-01 | 2018-06-01 | Air inlet pressure stabilizing device of fan and gas water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110553404A CN110553404A (en) | 2019-12-10 |
| CN110553404B true CN110553404B (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810566265.6A Active CN110553404B (en) | 2018-06-01 | 2018-06-01 | Air inlet pressure stabilizing device of fan and gas water heater |
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| CN (1) | CN110553404B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1227444A (en) * | 1967-05-30 | 1971-04-07 | ||
| JP2004092978A (en) * | 2002-08-30 | 2004-03-25 | Noritz Corp | Combustion device and water heater |
| JP2004138326A (en) * | 2002-10-18 | 2004-05-13 | Gastar Corp | Heat exchange device |
| CN101545672A (en) * | 2008-03-28 | 2009-09-30 | 聂勋渝 | Gas water heater with remained water in water outlet pipe capable of being recycled |
| JP2009287461A (en) * | 2008-05-29 | 2009-12-10 | Toyoda Gosei Co Ltd | Intake device and intake method |
| CN101832632A (en) * | 2010-06-23 | 2010-09-15 | 宁波圣莱达电器股份有限公司 | Pipeline electric heating rapid water boiler |
| CN206670011U (en) * | 2017-03-09 | 2017-11-24 | 芜湖美的厨卫电器制造有限公司 | Ducting assembly and gas heater |
| CN208349594U (en) * | 2018-06-01 | 2019-01-08 | 芜湖美的厨卫电器制造有限公司 | Blower enters the wind stable-pressure device and gas heater |
-
2018
- 2018-06-01 CN CN201810566265.6A patent/CN110553404B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1227444A (en) * | 1967-05-30 | 1971-04-07 | ||
| JP2004092978A (en) * | 2002-08-30 | 2004-03-25 | Noritz Corp | Combustion device and water heater |
| JP2004138326A (en) * | 2002-10-18 | 2004-05-13 | Gastar Corp | Heat exchange device |
| CN101545672A (en) * | 2008-03-28 | 2009-09-30 | 聂勋渝 | Gas water heater with remained water in water outlet pipe capable of being recycled |
| JP2009287461A (en) * | 2008-05-29 | 2009-12-10 | Toyoda Gosei Co Ltd | Intake device and intake method |
| CN101832632A (en) * | 2010-06-23 | 2010-09-15 | 宁波圣莱达电器股份有限公司 | Pipeline electric heating rapid water boiler |
| CN206670011U (en) * | 2017-03-09 | 2017-11-24 | 芜湖美的厨卫电器制造有限公司 | Ducting assembly and gas heater |
| CN208349594U (en) * | 2018-06-01 | 2019-01-08 | 芜湖美的厨卫电器制造有限公司 | Blower enters the wind stable-pressure device and gas heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110553404A (en) | 2019-12-10 |
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