CN212720312U

CN212720312U - Gas water heater

Info

Publication number: CN212720312U
Application number: CN202021048653.4U
Authority: CN
Inventors: 卢宇凡; 吴*松; 吴松; 杨志勇
Original assignee: Guangdong Vanward New Electric Co Ltd
Current assignee: Guangdong Vanward New Electric Co Ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-03-16
Anticipated expiration: 2030-06-09

Abstract

The utility model belongs to the technical field of smoke exhaust, in particular to a gas water heater; the water heater comprises a water heater body, wherein a smoke outlet is formed in the water heater body, and the water heater further comprises an auxiliary smoke exhaust device which is arranged at the smoke outlet; the auxiliary smoke exhaust device is an unpowered smoke exhaust fan. The auxiliary smoke exhaust device utilizes the principle that natural wind speed pushes a turbine of a fan to rotate and indoor and outdoor air convection to flow air in any direction, accelerates the air flow and converts the air flow into vertical air flow from bottom to top, does not use electricity, has no noise, and can operate for a long time, so that smoke is effectively exhausted, and when wind blows, the smoke cannot flow backwards into the water heater, the problem of backward flow of the smoke is effectively improved, and the problem of smoke leakage is solved.

Description

Gas water heater

Technical Field

The utility model belongs to the technical field of discharge fume, more specifically relates to a gas heater.

Background

The smoke exhaust pipe of the traditional gas water heater is interfered by air flowing in any parallel direction, so that the problem of backward flow occurs, and normal combustion is influenced; the flue type water heater does not have a fan to exhaust air forcibly, and the problem of smoke leakage can occur due to structural limitation or interference of other external factors.

At present, in order to prevent the backflow of smoke, a smoke exhaust hood for preventing backflow is arranged at a smoke exhaust port of a gas water heater, and the smoke exhaust hood is named as a smoke exhaust hood of a flue type water heater if the application number is 2009201513926; the problem of flue gas backward flow has effectively been solved, but this enclosure structure is complicated, and the installation of being not convenient for that area occupied is great.

In addition, like application number 2018200576293, the name is a gas heater who prevents the fall-back is prevent wind in rain-proof, and this patent is direct to be add rain-proof and prevent wind cap in smoke vent department, though effectively prevent external force wind and cause the problem that the flue gas flows backward, nevertheless also obstructed the emission of flue gas to a certain extent, be unfavorable for the effectual discharge of flue gas.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gas water heater for overcoming the defects in the prior art, which effectively improves the problem of backward flow of flue gas.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a gas water heater, includes the water heater body, is equipped with the exhaust port on the water heater body, wherein, still includes supplementary fume extractor, supplementary fume extractor install in exhaust port department, supplementary fume extractor be unpowered smoke exhaust fan. The auxiliary smoke exhaust device utilizes the principle that natural wind pushes the unpowered fan to rotate and indoor and outdoor air convection to flow air in any direction, accelerates the air flow and converts the air flow into vertical air flow from bottom to top, does not need electricity, has no noise, can operate for a long time, effectively exhausts smoke, and when wind blows, the smoke cannot flow backwards into the water heater, so that the problem of backward flow of the smoke is effectively improved, and the problem of smoke leakage is favorably solved.

In one embodiment, the auxiliary smoke exhaust device comprises an unpowered hood, a turbine and a fixed seat; the turbine is arranged in the unpowered hood, a central shaft is arranged on the turbine, and one end of the central shaft is fixedly connected with the top of the unpowered hood; the other end is rotationally connected with the fixed seat; the fixed seat is connected with the smoke exhaust port. The smoke enters the unpowered hood from the smoke outlet and flows out from gaps among the blades of the unpowered hood, when external wind blows, the wind drives the unpowered hood to rotate, the unpowered hood drives the turbine to synchronously rotate, and the turbine rotates to facilitate the discharge of the smoke in the smoke pipe. Thereby avoiding the backflow of the smoke under the action of external wind force and ensuring that the smoke can be discharged smoothly all the time.

The blade body of the unpowered hood protrudes from the inner side to the outer side along an arc line of the blade body, a convex ridge is formed on the outer side of the blade body, and a groove is formed on the inner side of the blade body. The convex ridge is formed on the outer side of the blade body, the groove is formed on the inner side of the blade body, the wind pressure is concentrated by the concave surface on the inner side of the blade, and the wind pressure is decomposed to the periphery by the convex surface on the outer side of the blade, so that the wind pressure difference of the front and the back of the blade is further enlarged, the rotating speed of the auxiliary smoke exhaust device is improved, and the application range of the auxiliary smoke exhaust device is enlarged.

In one embodiment, the central shaft is rotatably connected with the fixed seat through a bearing.

In one embodiment, the fixing seat is of a sleeve structure, a mounting bracket is arranged in the sleeve, and the central shaft is rotatably connected with the mounting bracket. The fixing seat of the sleeve structure is convenient to install and can be directly sleeved on the smoke tube.

In one embodiment, the smoke-discharging device further comprises a smoke tube, one end of the smoke tube is connected with the smoke discharging port, the other end of the smoke tube is connected with the fixed seat, and the smoke flowing direction at the smoke discharging port of the smoke tube flows vertically upwards. When the water heater is installed indoors, the smoke is discharged outdoors through the smoke pipe; when the smoke exhausting device is installed, the smoke pipe at the tail end is ensured to be longitudinally arranged, so that the auxiliary smoke exhausting device can play a role.

In one embodiment, the fixing seat is sleeved on the smoke tube, is connected with the smoke tube in a sealing manner, and is fixed through the locking screw.

In one embodiment, the fixing seat is provided with an annular protruding structure protruding towards the inner side, the smoke tube is provided with an annular groove matched with the annular protruding structure, and the annular protruding structure is clamped in the annular groove. Through the cooperation of annular groove and annular protruding structure, realize the spacing effect of installation, further locking again through locking screw.

In one embodiment, the device also comprises a smoke exhaust part which is vertically arranged, one end of the smoke exhaust part is connected with the smoke exhaust port, and the other end of the smoke exhaust part is connected with the fixed seat; the smoke flow direction at the smoke outlet of the smoke exhaust part is vertical and upward. When the water heater is installed outdoors, the smoke exhaust part is directly installed at the top of the water heater and also longitudinally arranged, so that the auxiliary smoke exhaust device can be ensured to play a role.

In one embodiment, the fixing seat is sleeved on the smoke exhaust part, is connected with the smoke exhaust part in a sealing manner, and is fixed through a locking screw.

In one embodiment, the fixing seat is provided with an annular protruding structure protruding towards the inner side, the smoke exhaust part is provided with an annular groove matched with the annular protruding structure, and the annular protruding structure is clamped in the annular groove.

Compared with the prior art, the beneficial effects are: the utility model provides a gas water heater, through setting up the auxiliary fume extractor in the water heater smoke vent, the said auxiliary fume extractor is the unpowered smoke exhaust fan; the unpowered fan is pushed to rotate by natural wind, and air flowing in any direction is accelerated and converted into vertical air flowing from bottom to top by the air convection principle, so that the problem of backward flowing of smoke is effectively improved, and the problem of smoke leakage is solved.

Drawings

Fig. 1 is the structure schematic diagram of the unpowered fan of the present invention.

Fig. 2 is a schematic view of the overall structure of embodiment 1 of the present invention.

Fig. 3 is a partially enlarged schematic view of a in fig. 2 according to the present invention.

Fig. 4 is a schematic view of the overall structure of embodiment 2 of the present invention.

Fig. 5 is a schematic view of the flue gas flow direction in the windless state according to embodiment 1 of the present invention.

Fig. 6 is a schematic diagram of the flow direction of flue gas when the water heater stops working in the natural wind state according to embodiment 1 of the present invention.

Fig. 7 is a schematic diagram of the flow direction of flue gas when the water heater normally works in the natural wind state according to embodiment 1 of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.

Example 1:

as shown in fig. 1, 2 and 3, a gas water heater comprises a water heater body 1, wherein a smoke outlet is arranged on the water heater body 1, and a smoke pipe 3 is connected with the smoke outlet; the smoke exhaust device comprises a smoke exhaust fan and an auxiliary smoke exhaust device 2, wherein the auxiliary smoke exhaust device 2 is connected with a smoke outlet of a smoke pipe 3, and the auxiliary smoke exhaust device 2 is an unpowered smoke exhaust fan. The auxiliary smoke exhaust device 2 utilizes the principle that natural wind pushes the turbine 22 of the fan to rotate and indoor and outdoor air convection to accelerate air flow in any direction and convert the air flow into vertical air flow from bottom to top, does not use electricity, has no noise and can operate for a long time, thereby effectively discharging smoke.

In some embodiments, the auxiliary smoke evacuation device 2 includes an unpowered hood 21, a turbine 22, and a fixed seat 23; the turbine 22 is arranged in the unpowered hood 21, a central shaft 24 is arranged on the turbine 22, and one end of the central shaft 24 is fixedly connected with the top of the unpowered hood 21; the other end is rotationally connected with the fixed seat 23; the fixed seat 23 is connected with the smoke exhaust port. The smoke enters the unpowered hood 21 from the smoke outlet, flows out from gaps among the blades of the unpowered hood 21, when outside wind blows, the wind enters the unpowered hood 21 from the gaps among the blades and blows the turbine 22 to rotate, so that air flowing in any direction is accelerated and converted into vertical air flowing from bottom to top, the smoke is prevented from flowing backwards under the action of outside wind, and the smoke is guaranteed to be discharged smoothly all the time.

In one embodiment, the central shaft 24 is rotatably connected to the fixed base 23 by a bearing 25.

In some embodiments, the fixing seat 23 is a sleeve structure, a mounting bracket 26 is disposed in the sleeve, and the central shaft 24 is rotatably connected to the mounting bracket 26. The fixed seat 23 of the sleeve structure is convenient to install and can be directly sleeved on the smoke tube 3.

In one embodiment, the fixing seat 23 is sleeved on the smoke tube 3, is connected to the smoke tube 3 in a sealing manner, and is fixed by the locking screw 28, so that the smoke at the smoke outlet of the smoke tube 3 flows vertically and upwardly. When the water heater is installed indoors, the smoke is discharged outdoors through the smoke pipe 3; when the device is installed, the smoke tube 3 at the tail end is ensured to be longitudinally arranged, so that the auxiliary smoke exhaust device 2 can play a role.

In another embodiment, the fixing seat 23 is provided with an annular protrusion 27 protruding inward, the smoke tube 3 is provided with an annular groove matching with the annular protrusion 27, and the annular protrusion 27 is clamped in the annular groove. The installation limiting function is realized through the matching of the annular groove and the annular bulge, and the locking is further realized through the locking screw 28.

The working principle is as follows:

in a windless state: the temperature of the flue gas is higher than that of normal temperature air (more than 0.5 ℃), the flow direction of the flue gas is shown in figure 5, the flue gas is discharged from the blade gap of the unpowered fan, and the unpowered fan is pushed to rotate.

Natural wind drive (water heater stop working): under the breeze of not less than 0.2m/s, the unpowered fan starts to rotate, the internal turbine 22 is driven at the same time, the gas in the smoke tube 3 flows to the direction shown in figure 6 under the action of the turbine 22, and natural wind passes through the auxiliary smoke exhaust device 2 to obtain extra draft in the smoke channel, so that the high-temperature smoke in the smoke tube 3 flows from bottom to top in an accelerated manner.

The water heater normally works, and simultaneously under the effect of natural wind, the device can provide extra draft for 3 ways of exhaust pipe, accelerates flue gas discharge efficiency, prevents the backward flow wind simultaneously, as shown in figure 7.

Example 2

As shown in fig. 4, the present embodiment has the same structure as that of embodiment 1, except that a vertically arranged smoke exhaust part 4 is connected to the smoke exhaust port of the water heater, and the fixing seat 23 is sleeved on the smoke exhaust part 4, hermetically connected with the smoke exhaust part 4, and fixed by a locking screw 28. The smoke flow direction at the smoke outlet of the smoke exhaust part 4 is vertical and upward. When the water heater is installed outdoors, the smoke exhaust part 4 is directly installed at the top of the water heater, and the smoke exhaust part 4 is also longitudinally arranged, so that the auxiliary smoke exhaust device 2 can be ensured to play a role.

In another embodiment, the fixed seat 23 is provided with an annular protrusion 27 protruding inward, the smoke evacuation portion 4 is provided with an annular groove matching with the annular protrusion 27, and the annular protrusion 27 is clamped in the annular groove. The installation limiting function is realized through the matching of the annular groove and the annular bulge, and the locking is further realized through the locking screw 28.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a gas water heater, includes water heater body (1), is equipped with the exhaust port on water heater body (1), its characterized in that still includes supplementary fume extractor (2), supplementary fume extractor (2) install in exhaust port department, supplementary fume extractor (2) be unpowered smoke exhaust fan.

2. The gas water heater according to claim 1, characterized in that said auxiliary fume extractor (2) comprises an unpowered hood (21), a turbine (22) and a fixed seat (23); the turbine (22) is arranged in the unpowered hood (21), a central shaft (24) is arranged on the turbine (22), and one end of the central shaft (24) is fixedly connected with the top of the unpowered hood (21); the other end is rotationally connected with a fixed seat (23);

the fixed seat (23) is connected with the smoke outlet.

3. The gas water heater of claim 2, characterized in that the central shaft (24) is rotatably connected with the fixed seat (23) through a bearing (25).

4. The gas water heater of claim 2, wherein the fixing seat (23) is of a sleeve structure, a mounting bracket (26) is arranged in the sleeve, and the central shaft (24) is rotatably connected with the mounting bracket (26).

5. The gas water heater of claim 4, further comprising a smoke tube (3), wherein one end of the smoke tube (3) is connected with the smoke outlet, the other end of the smoke tube is connected with the fixing seat (23), and the smoke at the smoke outlet of the smoke tube (3) flows vertically upwards.

6. The gas water heater of claim 5, wherein the fixing seat (23) is sleeved on the smoke tube (3) and is connected with the smoke tube (3) in a sealing way and fixed by a locking screw (28).

7. The gas water heater of claim 6, wherein the fixing seat (23) is provided with an annular protrusion structure (27) protruding inwards, the smoke tube (3) is provided with an annular groove matched with the annular protrusion structure (27), and the annular protrusion structure (27) is clamped in the annular groove.

8. The gas water heater of claim 4, further comprising a vertically arranged smoke exhaust part (4), wherein one end of the smoke exhaust part (4) is connected with the smoke exhaust port, and the other end is connected with the fixed seat (23); the smoke flow direction at the smoke outlet of the smoke exhaust part (4) is vertical and upward.

9. The gas water heater of claim 7, wherein the fixing seat (23) is sleeved on the smoke exhaust part (4), is connected with the smoke exhaust part (4) in a sealing way, and is fixed by a locking screw (28).

10. The gas water heater of claim 9, wherein the fixing base (23) is provided with an annular protrusion structure (27) protruding inward, the smoke exhaust part (4) is provided with an annular groove matched with the annular protrusion structure (27), and the annular protrusion structure (27) is clamped in the annular groove.