CN217464478U

CN217464478U - Smoke exhaust pipe, smoke exhaust system and gas water heater

Info

Publication number: CN217464478U
Application number: CN202221609679.0U
Authority: CN
Inventors: 李忠堂; 李凯; 张细燕
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-20
Anticipated expiration: 2032-06-23

Abstract

The utility model relates to a tub, the system of discharging fume and gas heater of discharging fume. Wherein, the smoke exhaust pipe comprises a pipe body and a smoke exhaust port. The pipe body is provided with a first section and a second section, wherein the first section is suitable for being connected with a main body of the gas water heater, the second section is connected with the first section, the extending direction of the first section forms an included angle with the extending direction of the second section, and at least the inner pipe wall on the lower side of the second section is outwards sunken to form a groove; the smoke outlet is formed on the groove wall of the groove. Even the second section of body is the obtuse angle because of reasons such as installation error or wind-blowing and the first section of body between, the rainwater that enters into in the recess through the exhaust port also can flow to the lowest of recess under the effect of gravity, and the exhaust port on the rethread recess flows, can not flow back to lead to shortening the life of the main part of exhaust pipe and gas heater in gas heater's the main part. Therefore, the utility model discloses a tub of discharging fume among the prior art can be overcome and the tub of discharging fume causes the rainwater backward flow easily, leads to shortening the life's of water heater defect.

Description

Smoke exhaust pipe, smoke exhaust system and gas water heater

Technical Field

The utility model relates to a water heater technical field, concretely relates to tub, system and gas heater of discharging fume.

Background

The gas water heater is also called as a gas water heater, and refers to a gas appliance which takes gas as fuel and transfers heat to cold water flowing through a heat exchanger in a combustion heating mode so as to achieve the purpose of preparing hot water. Its advantages are instant use, no need of waiting and less possessed ground area. In the aspect of safety, the gas water heater realizes the separation of heat production and heat supply, bathes in a bathroom and is installed in a kitchen, and the danger of leakage generated in the bathing process is avoided.

As shown in fig. 1 and 2, the gas water heater 200 ' of the prior art generally discharges the flue gas generated by combustion to the outside through a smoke discharge pipe 100 ', wherein the smoke discharge pipe 100 ' includes a pipe body and a smoke discharge port 3 ' circumferentially provided on the pipe body, and the pipe body has a first section 11 ' connected to the water heater and extending in a vertical direction and a second section 12 ' forming an acute angle with the first section 11 '. The applicant finds that once the fume exhaust pipe 100 ' forms an obtuse angle between the second section 12 ' and the first section 11 ' of the pipe body due to processing errors or wind blowing and the like, rainwater which is poured into the fume exhaust pipe 100 ' from the fume exhaust port 3 ' flows back to the interior of the main body 201 ' of the gas water heater along the second section 12 ', and because the fume exhausted from the fume exhaust pipe 100 ' usually contains sulfur dioxide and other acidic substances, the water which flows back to the water heater corrodes the fume exhaust pipe 100 ' and the gas water heater 200 ', so that the service life of the gas water heater 200 ' is shortened.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the pipe of discharging fume among the prior art and leading to shortening the life's of water heater defect because of the rainwater backward flow easily to provide a pipe of discharging fume, system and gas heater of being difficult for causing the rainwater backward flow.

In order to solve the problem, the utility model discloses the first aspect provides a tub of discharging fume, including body and exhaust port. The pipe body is provided with a first section and a second section, wherein the first section is suitable for being connected with a main body of the gas water heater, the second section is connected with the first section, the extending direction of the first section forms an included angle with the extending direction of the second section, and at least the inner pipe wall on the lower side of the second section is outwards sunken to form a groove; the smoke outlet is formed on the groove wall of the groove.

Furthermore, the groove extends along the circumferential direction of the second section and is annular, and the smoke exhaust ports are uniformly distributed on the groove wall of the groove along the circumferential direction.

Furthermore, the longitudinal section of the groove wall of the groove is arc-shaped.

Further, a groove is formed at an end of the second section remote from the first section.

Further, the pipe wall of the second section protrudes outwards to form a protruding part, and the inner side of the protruding part forms a groove.

Further, the smoke outlet is a strip-shaped hole extending along the length direction of the second section.

Further, the smoke exhaust port extends from the middle of the protruding portion toward a direction away from the first section.

Further, the smoke exhaust pipe also comprises a blocking cover for blocking one end of the second section far away from the first section.

Further, the pipe body also comprises a bendable folded section connected between the first section and the second section.

The utility model discloses the second aspect has related to a system of discharging fume, include the utility model discloses the pipe of discharging fume of the first aspect.

The utility model discloses the third aspect has related to a gas heater, include the utility model discloses the pipe of discharging fume of first aspect.

The utility model has the advantages of it is following:

1. according to the above technical scheme, the utility model discloses the discharge fume pipe of the first aspect has set up outside sunken recess at the downside of second section at least to set up the exhaust port on the cell wall of recess. This makes the cell wall of recess can regard as the domatic guide water of water conservancy diversion to the tank bottom of recess, even be the obtuse angle between the second section of body and the first section of body because of reasons such as installation error or wind-blowing, rainwater that enters into in the recess through the exhaust port also can flow to the lowest of recess under the effect of gravity, and the exhaust port on the rethread recess flows, can not flow back to lead to shortening the life of the main part of exhaust pipe and gas heater in gas heater's the main part. Therefore, the utility model discloses the pipe of discharging fume among the prior art can be overcome to the pipe of discharging fume of first aspect and causes the rainwater backward flow easily, leads to shortening the life's of water heater defect. And simultaneously, the utility model discloses the simple structure of the pipe of discharging fume of the first aspect, it is convenient to make, practical safe and reliable, the implementation of being convenient for is popularized and applied.

2. The groove extends along the circumferential direction of the second section and is annular. The groove on the whole circumferential wall of the second section can be used as a flow guiding slope surface and guides water to flow to the groove bottom of the groove, and then the rainwater flows out through the smoke outlet. No matter how the smoke exhaust pipe is inclined, rainwater is not easy to flow into the main body of the gas water heater, and the service life of the gas water heater is further prolonged. The smoke outlet may alternatively be provided only in the inner pipe wall on the lower side of the second section. In order to reduce the resistance of the gas water heater to smoke discharge and avoid the unsmooth smoke discharge, the gas water heater is preferably arranged to be evenly distributed on the groove wall of the groove along the circumferential direction.

3. The longitudinal section of the groove wall of the groove is arc-shaped, so that the processing of the pipe body can be facilitated. The recess sets up the one end of keeping away from first section at the second section, and this makes the flue gas can directly flow out through the exhaust port on the recess when flowing to the end of second section, and the process of having avoided the flue gas to flow back in the recess increases the outside outstanding protruding formation protruding portion of pipe wall of smoke exhaust resistance second section, and the inboard of protruding portion forms the recess, and the course of working is simple, and the thickness that has just allowed the second section is set up is thinner and the manufacturing cost of reduction body. The exhaust port is the bar hole that extends along the length direction of second section, and the pipe wall of second section is set to outwards outstanding, can be convenient for the operator through mode such as milling or tailor processing out the exhaust port on the pipe wall, and simple process helps promoting the production efficiency of exhaust pipe.

4. The smoke exhaust is arranged to extend from the middle of the projection in a direction away from the first section. Not only can ensure that the protruding part has enough structural strength, but also can not increase the smoke exhaust resistance of the gas water heater because the area of the smoke exhaust port is too small. The exhaust port among the prior art generally directly sets up on the second section of body, and this makes the flue gas need rotate for the radial flow along the second section from the direction along the second section of body when discharging through the exhaust port, leads to having increased the resistance of the process of discharging fume, causes easily to discharge fume not smooth.

5. The groove is arranged at one end, far away from the first section, of the second section, so that smoke can be smoothly discharged through the smoke outlet without being greatly turned when flowing along the second section of the pipeline, and smoke discharging resistance of the smoke discharging pipe is effectively reduced. The smoke exhaust pipe also comprises a blocking cover for blocking one end of the second section far away from the first section. The purpose of preventing cold air from flowing backwards can be achieved by arranging the blocking cover, and the cold air backflow prevention device is simple in structure and good in protection effect. Preferably, the body still includes the fold section of connecting the bendable between first section and second section, can adjust the angle between first section and the second section through the fold section of buckling convenient and fast, the installation of the gas heater of being convenient for.

6. The utility model discloses the second aspect has related to a system of discharging fume, and this system of discharging fume includes the utility model discloses the pipe of discharging fume of the first aspect, consequently have the utility model discloses the beneficial effect of the pipe of discharging fume of the first aspect, the pipe of discharging fume among the prior art can be overcome promptly leads to shortening the life's of water heater defect because of the rainwater backward flow easily.

7. The utility model discloses the third aspect has related to a gas heater, and this gas heater has included the utility model discloses the pipe of discharging fume of the first aspect, consequently have the beneficial effect of the first aspect, can overcome the defect that the pipe of discharging fume among the prior art leads to shortening the life of water heater easily because of the rainwater backward flow promptly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a prior art gas water heater;

FIG. 2 is an enlarged view of the smoke vent of FIG. 1;

FIG. 3 is a cross-sectional view of a smoke exhaust of a prior art gas water heater;

fig. 4 is a gas water heater according to embodiment 3 of the present invention;

FIG. 5 is a smoke exhaust pipe of the gas water heater according to embodiment 3 of the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 5;

fig. 7 is a cross-sectional view of the groove of the gas water heater according to embodiment 3 of the present invention.

Description of the reference numerals:

100. a smoke exhaust pipe; 11. a first stage; 12. a second stage; 13. blocking the cover; 14. a fold section; 2. a groove; 3. a smoke outlet;

200. a gas water heater; 201. a main body;

100', a smoke exhaust pipe; 11', a first section; 12', a second section; 3', a smoke outlet;

200' and a gas water heater.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

Fig. 4 is a gas water heater according to embodiment 3 of the present invention. Fig. 5 is a smoke exhaust pipe of a gas water heater in embodiment 3 of the present invention. As shown in fig. 4 and 5, the smoke exhaust pipe 100 of the present embodiment mainly includes a pipe body and a smoke exhaust port 3. Wherein the pipe body has a first section 11 adapted to be connected to the body 201 of the gas water heater 200 and a second section 12 connected to the first section 11. The direction of extension of the first section 11 forms an angle with the direction of extension of the second section 12. The second section 12 is at least at its lower inner pipe wall outwardly concave to form a groove 2. The smoke outlet 3 is formed on the groove wall of the groove 2. The angle formed by the extending direction of the first segment 11 and the extending direction of the second segment 12 is preferably, but not limited to, an acute angle. The main body 201 of the gas water heater 200 is preferably, but not limited to, composed of a valve body assembly, a main burner, a small fire burner, a heat exchanger, a safety device, etc., which are well known to those skilled in the art and will not be described in detail herein.

According to the above technical solution, the smoke exhaust pipe 100 of the present embodiment is provided with the outwardly concave groove 2 at least at the lower side of the second section 12, and the smoke exhaust port 3 is arranged on the groove wall of the groove 2. This makes the cell wall of recess 2 can regard as the domatic guide water of water conservancy diversion to the tank bottom of recess 2, even be the obtuse angle between second section 12 of body and the first section 11 of body because of reasons such as installation error or wind-blowing, rainwater that enters into in recess 2 through exhaust port 3 also can flow to the lowest of recess 2 under the effect of gravity, and exhaust port 3 on the rethread recess 2 outwards discharges, can not lead to shortening the life of the main part 201 of exhaust pipe 100 and gas heater 200 in the main part 201 of gas heater 200 of backward flow. Therefore, the smoke exhaust pipe 100 of the present embodiment can overcome the defect that the smoke exhaust pipe 100' in the prior art is easy to cause rainwater backflow, which results in shortening the service life of the water heater. Meanwhile, the smoke exhaust pipe 100 of the embodiment has a simple structure, is convenient to manufacture, practical, safe and reliable, and is convenient to implement, popularize and apply.

The grooves 2 may be formed only on the inner wall of the lower side of the second section 12, or may be formed on the inner walls of the lower side and the upper side of the second section 12, or may be formed on the inner circumferential wall of the second section 12, and when the inner wall of the second section 12 is selected only on the lower side and is outwardly concave, the larger the central angle of the groove in the circumferential direction, the more the anti-backflow effect of the smoke discharge pipe 100 is improved. Preferably, in the present embodiment, the groove 2 extends in the circumferential direction of the second section 12 and is annular. This enables the grooves 2 on the entire circumferential wall of the second section 12 to function as a flow guiding slope and guide water to flow to the bottom of the grooves 2, and then the rainwater flows out through the smoke outlet 3. It is ensured that no matter how the smoke exhaust pipe 100 is inclined, rainwater is not easy to flow into the main body 201 of the gas water heater 200, which is helpful for further prolonging the service life of the gas water heater 200. The smoke outlet 3 may alternatively be provided only on the inner pipe wall on the lower side of the second section 12. In order to reduce the resistance of the smoke of the gas water heater 200 and avoid the unsmooth smoke, the smoke outlets of the gas water heater 200 are preferably arranged to be evenly distributed on the groove wall of the groove 2 along the circumferential direction.

The grooves 2 are preferably, but not limited to, square, spherical or ellipsoidal grooves. For example, in the present embodiment, as shown in fig. 7, the longitudinal section of the groove wall of the groove 2 is circular arc, which can facilitate the processing of the pipe body. The groove 2 is preferably, but not limited to, arranged in the middle of the second section 12 or at one end of the second section 12 far away from the first section 11, preferably at one end of the second section 12 far away from the first section 11, so that the smoke can directly flow out through the smoke outlet 3 on the groove 2 when flowing to the tail end of the second section 12, and the smoke resistance is prevented from being increased in the process of flowing back to the groove 2.

The grooves 2 are optionally formed in the inner wall of the second section 12 by grooving, preferably, in this embodiment, the pipe wall of the second section 12 protrudes outward to form a protrusion, and the inner side of the protrusion forms the grooves 2, so that the processing process is simple, the thickness of the second section 12 is allowed to be set to be thin, and the manufacturing cost of the pipe body is reduced. The smoke outlet 3 is preferably but not limited to a circular hole or a square hole, for example, in the present embodiment, the smoke outlet 3 is a strip-shaped hole extending along the length direction of the second section 12, the pipe wall of the second section 12 is configured to protrude outwards, so that an operator can conveniently process the smoke outlet 3 on the pipe wall by milling or cutting, and the process is simple, and the production efficiency of the smoke exhaust pipe 100 is improved.

The smoke outlet 3 may extend from one side of the protruding part to the other side of the protruding part, or may be disposed at any side of the protruding part. Preferably, in this embodiment, the smoke outlet 3 is arranged to extend from the middle of the protrusion towards a direction away from the first section 11. Not only can the protruding part have enough structural strength be ensured, but also the smoke exhaust resistance of the gas water heater 200 is not increased due to the small area of the smoke exhaust port 3. As shown in fig. 3, the smoke outlet 3 'in the prior art is generally directly disposed on the second section 12' of the tube, which causes the smoke to rotate from the direction along the second section 12 'of the tube to flow along the radial direction of the second section 12' when the smoke is discharged through the smoke outlet 3, which increases the resistance in the smoke discharging process and easily causes unsmooth smoke discharging, and the direction indicated by the arrow in fig. 3 is the flow direction of the smoke.

In this embodiment, the grooves 2 are disposed at the end of the second section 12 far from the first section 11, which enables the smoke to be smoothly discharged through the smoke outlet 3 without a large turn when flowing along the second section 12 of the pipeline, effectively reducing the smoke discharge resistance of the smoke discharge pipe 100 (see fig. 6). Preferably, in the present embodiment, the smoke exhaust pipe 100 further comprises a blocking cover 13 for blocking one end of the second section 12 far away from the first section 11. The purpose of preventing cold air from flowing backwards can be achieved by arranging the blocking cover 13, and the cold air backflow prevention device is simple in structure and good in protection effect.

Preferably, in this embodiment, the pipe further includes a foldable corrugated section 14 connected between the first section 11 and the second section 12, and the angle between the first section 11 and the second section 12 can be conveniently and quickly adjusted by folding the corrugated section 14, so as to facilitate the installation of the gas water heater 200.

Example 2

Embodiment 2 relates to a smoke exhaust system, which includes the smoke exhaust pipe 100, and thus has the beneficial effects that the defect that the service life of a water heater is easily shortened due to rainwater backflow in the smoke exhaust pipe 100' in the prior art can be overcome.

Example 3

Embodiment 3 relates to a gas water heater 200, and the gas water heater 200 includes the smoke exhaust pipe 100, so that the gas water heater has the beneficial effect that the defect that the service life of the water heater is easily shortened due to rainwater backflow in the smoke exhaust pipe 100' in the prior art can be overcome.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. 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. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A smoke evacuation tube, comprising:

a pipe body having a first section (11) adapted to be connected to a main body (201) of a gas water heater (200) and a second section (12) connected to the first section (11), the first section (11) extending in a direction forming an angle with the second section (12), the second section (12) being recessed outwardly at least in an inner pipe wall of a lower side thereof to form a groove (2);

a smoke outlet (3) formed on the groove wall of the groove (2).

2. The smoke exhaust pipe according to claim 1, wherein said groove (2) extends in the circumferential direction of said second section (12) and is annular, and said smoke exhaust ports (3) are evenly distributed in the circumferential direction on the walls of said groove (2).

3. A smoke exhaust pipe according to claim 1 or 2, wherein the longitudinal section of the groove wall of said groove (2) is circular arc.

4. An exhaust pipe according to claim 1 or 2, wherein the groove (2) is formed at an end of the second section (12) remote from the first section (11).

5. The smoke exhaust pipe according to any of the claims 1 or 2, wherein the pipe wall of said second section (12) is outwardly protruding to form a protrusion, the inner side of which forms said groove (2).

6. A smoke exhaust tube according to claim 5, wherein said smoke outlet (3) is a strip shaped hole extending in the length direction of said second section (12).

7. Smoke exhaust tube according to claim 6, wherein the smoke exhaust port (3) extends from the middle of the protrusion towards a direction away from the first section (11).

8. The smoke exhaust duct according to claim 1 or 2, wherein said smoke exhaust duct (100) further comprises a blocking cap (13) blocking an end of said second section (12) remote from said first section (11).

9. An exhaust pipe according to claim 1 or 2, wherein the pipe body further comprises a foldable corrugated section (14) connected between the first section (11) and the second section (12).

10. A smoke evacuation system comprising a smoke evacuation duct (100) according to any of claims 1-9.

11. A gas water heater, characterized by comprising a smoke evacuation pipe (100) according to any one of claims 1 to 9.