Condenser and gas water heater

Abstract

The utility model relates to the technical field of water heater, specifically disclose a condenser and gas water heater, in this condenser, the shell has condensing cavity and the flue gas import and flue gas export that communicate condensing cavity, wherein, the flue gas export is located the top of flue gas import, the heat exchange water pipe is located in condensing cavity, and is located the top of flue gas import, the shunt piece is located in condensing cavity and is located between flue gas import and heat exchange water pipe, and the shunt piece is connected with the shell, along the width direction of shell, the shunt piece is equipped with two interval arrangement's shunt passage, along the flow direction of flue gas, flue gas import, shunt passage, condensing cavity and flue gas export are sequentially communicated. The above -mentioned setting has improved the absorption of heat exchange water pipe to flue gas heat, has improved secondary heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, and in particular to a condenser and a gas water heater. Background Technology

[0002] Most household gas water heaters have an energy efficiency rating of level two. To achieve energy efficiency, a level one gas water heater is required. The principle of a level one gas water heater is to recover and reuse the heat from the flue gas discharged from the heat exchanger of a regular level two gas water heater through a condenser, thereby improving thermal efficiency.

[0003] In related technologies, the condenser is generally located above the heat exchanger. After heat exchange in the heat exchanger, the flue gas flows upward and then flows through the heat exchange water pipe in the condenser for heat exchange before flowing out from the flue gas outlet. The flow path of the flue gas in the condenser is short, resulting in poor secondary heat exchange effect.

[0004] Therefore, there is an urgent need to research a condenser and a gas water heater to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a condenser and a gas water heater to solve the problem of poor secondary heat exchange effect of flue gas passing through the condenser in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A condenser, comprising:

[0008] The housing has a condensation chamber and a flue gas inlet and a flue gas outlet communicating with the condensation chamber, wherein the flue gas outlet is located above the flue gas inlet;

[0009] The hot water pipe is located inside the condensation chamber and above the flue gas inlet;

[0010] A flow divider is disposed within the condensation chamber and located between the flue gas inlet and the hot water exchange pipe, and the flow divider is connected to the outer shell; along the width direction of the outer shell, the flow divider is provided with two spaced-apart flow divider channels, and along the flow direction of the flue gas, the flue gas inlet, the flow divider channels, the condensation chamber and the flue gas outlet are sequentially connected.

[0011] As an optional technical solution for a condenser, the flow distribution component includes a flow distribution body and two guide plates. The flow distribution channel is located on the flow distribution body. Along the width direction of the outer shell, the two guide plates are both located on the flow distribution body and are situated between the two flow distribution channels, corresponding one-to-one with the two flow distribution channels. The two guide plates form an flared structure with openings facing the hot water exchange pipe. Each guide plate at least partially blocks the corresponding flow distribution channel.

[0012] As an optional technical solution for a condenser, the guide plate includes a connecting part and a guide part connected together. The connecting part is parallel to and connected to the flow distribution body, and the guide part is inclinedly arranged above the corresponding flow distribution channel; and / or,

[0013] The flow guide plate and the flow divider body are welded together.

[0014] As an optional technical solution for condensers, the flow distribution body has a reinforcing member arranged on the outer periphery of the flow distribution channel.

[0015] As an alternative technical solution for the condenser, the outer periphery of the flow distribution channel is provided with an annular flange to form the reinforcing member, and is arranged on the side of the flow distribution body facing the condensation cavity.

[0016] As an optional technical solution for the condenser, the main body of the flow divider has a V-shaped structure and the opening faces the hot water exchange pipe.

[0017] As an optional technical solution for the condenser, the side of the distribution body facing the condensation chamber forms a water collection tank, the outer shell has a drain hole communicating with the water collection tank, and the condenser also includes a drain pipe communicating with the drain hole to discharge condensate to the outside of the water collection tank.

[0018] As an alternative technical solution for condensers, the outline of the projection of the flow divider is located on the outer periphery of the outline of the projection of the hot water exchange pipe in the vertical direction.

[0019] As an optional technical solution for the condenser, the diversion channel is elongated and extends in the same direction as the hot water exchange pipe; and / or,

[0020] The length of the diversion channel is greater than or equal to the length of the hot water exchange pipe.

[0021] A gas water heater includes a heat exchanger and a condenser as described in any of the above technical solutions. The heat exchanger includes a housing with a heat exchange chamber and a flue gas outlet communicating with the heat exchange chamber. The condenser is installed above the heat exchanger, and the flue gas outlet is communicating with the flue gas inlet.

[0022] This utility model has at least the following beneficial effects:

[0023] This utility model provides a condenser and a gas water heater. The condenser includes a shell, a hot water exchange pipe, and a diverter. The shell has a condensation chamber and a flue gas inlet and a flue gas outlet communicating with the condensation chamber. The flue gas outlet is located above the flue gas inlet. The hot water exchange pipe is located inside the condensation chamber and above the flue gas inlet. The diverter is located inside the condensation chamber and between the flue gas inlet and the hot water exchange pipe, and is connected to the shell. Along the width direction of the shell, the diverter has two spaced diverting channels. Along the flow direction of the flue gas, the flue gas inlet, the diverting channels, the condensation chamber, and the flue gas outlet are connected in sequence.

[0024] In this invention, the diversion component allows the flue gas to flow out of the heat exchanger and be divided into two streams through two spaced diversion channels. Compared to the non-diversion method, the movement paths of the two flue gas streams are doubled, thereby extending the flow time of the flue gas to ensure sufficient heat exchange. The larger flow range of the flue gas increases the contact area with the heat exchange pipe, thereby increasing the heat absorption of the heat exchange pipe by the flue gas and improving the secondary heat exchange efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the condenser in an embodiment of the present invention;

[0027] Figure 2 This is a cross-sectional structural diagram of the condenser in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the flow divider in an embodiment of the present invention;

[0029] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0030] In the picture:

[0031] 100. Outer shell; 110. Condensation chamber; 120. Flue gas inlet; 130. Flue gas outlet; 140. Drain pipe;

[0032] 200. Replace the hot water pipe;

[0033] 300. Diverter component; 310. Diverter body; 311. Diverter channel; 312. Water collection trough; 313. Reinforcing component; 314. Recess; 320. Guide plate; 321. Connecting part; 322. Guide part. Detailed Implementation

[0034] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0035] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0036] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0037] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0038] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0039] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0040] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0041] like Figures 1 to 4 As shown, this embodiment provides a condenser, which includes a shell 100, a hot water exchange pipe 200, and a flow divider 300. The shell 100 has a condensation chamber 110 and a flue gas inlet 120 and a flue gas outlet 130 communicating with the condensation chamber 110. The flue gas outlet 130 is located above the flue gas inlet 120. The hot water exchange pipe 200 is located inside the condensation chamber 110 and above the flue gas inlet 120. The flow divider 300 is disposed inside the condensation chamber 110 and between the flue gas inlet 120 and the hot water exchange pipe 200, and the flow divider 300 is connected to the shell 100. Along the width direction of the shell 100, the flow divider 300 has two spaced-apart flow divider channels 311. Along the flow direction of the flue gas, the flue gas inlet 120, the flow divider channels 311, the condensation chamber 110, and the flue gas outlet 130 are connected in sequence.

[0042] In other words, along the width direction of the outer casing 100, the flue gas outlet 130 is located between the two diversion channels 311. The width direction of the outer casing 100 is the front-to-back direction.

[0043] By setting the diversion component 300, the flue gas flows out of the heat exchanger and is divided into two flue gas streams by two spaced diversion channels 311. Compared with the non-diversion method, the movement path of the two flue gas streams after diversion is doubled, thereby extending the flow time of the flue gas to ensure sufficient heat exchange. The flow range of the flue gas is larger to increase the contact area with the heat exchange pipe 200, thereby increasing the heat absorption of the heat exchange pipe 200 by the flue gas and improving the secondary heat exchange efficiency.

[0044] In some embodiments, the diversion component 300 includes a diversion body 310 and two guide plates 320. A diversion channel 311 is disposed on the diversion body 310 along the width direction of the outer shell 100. The two guide plates 320 are both disposed on the diversion body 310 and are located between the two diversion channels 311 and correspond one-to-one with the two diversion channels 311. The two guide plates 320 form an flared structure with the opening facing the hot water exchange pipe 200. Each guide plate 320 at least partially blocks the corresponding diversion channel 311 so that the flue gas is blocked by the guide plate 320 during the upward flow of the diversion channel 311, and thus flows towards the inner sidewall in the width direction of the outer shell 100. After contacting the inner sidewall, part of the flue gas flows upward, and part of it turns back and flows towards the flue gas outlet 130 after passing through the hot water exchange pipe 200.

[0045] To improve the structural stability of the flow divider 300, in some embodiments, the guide plate 320 and the flow divider body 310 are welded together. Specifically, the guide plate 320 includes a connecting portion 321 and a flow guiding portion 322 connected together. The connecting portion 321 and the flow divider body 310 are parallel and welded together, and the flow guiding portion 322 is inclinedly arranged above the corresponding flow divider channel 311. The connection portion 321 effectively increases the connection area between the guide plate 320 and the flow divider body 310, thereby improving the connection strength.

[0046] To prevent condensate droplets from the hot water exchange pipe 200 inside the condensation chamber 110 from falling into the heat exchanger below through the flue gas inlet 120, in some embodiments, the outline of the projection of the diverter 300 is located on the outer periphery of the outline of the projection of the hot water exchange pipe 200 in the vertical direction, so as to provide all-round shielding against condensate. Here, the vertical direction refers to the up-and-down direction.

[0047] In some embodiments, to facilitate the collection of condensate, the diversion body 310 has a V-shaped structure with its opening facing the hot water exchange pipe 200. When condensate drips, it is collected by the V-shaped diversion body 310 for centralized discharge. Further, a water collection trough 312 is formed on the side of the diversion body 310 facing the condensation chamber 110. The outer shell 100 has a drain hole communicating with the water collection trough 312. The condenser also includes a drain pipe 140, which communicates with the drain hole to discharge condensate to the outside of the water collection trough 312. The bottom of the water collection trough 312 is inclined, and the drain hole is correspondingly located at the lowest point of the bottom of the water collection trough 312. The drain pipe 140 is inclined to facilitate the discharge of condensate. A recess 314 is provided at the right end of the diversion body 310. One side of the recess 314 communicates with the water collection trough 312, and the other side communicates with the drain hole.

[0048] To avoid the diversion channel 311 affecting the structural strength of the diversion body 310, in some embodiments, the diversion body 310 is provided with a reinforcing member 313 on the outer periphery of the diversion channel 311 to increase the structural strength of the diversion body 310 and prevent vibration and noise from occurring when flue gas passes through.

[0049] Specifically, the outer periphery of the diversion channel 311 is provided with an annular flange to form a reinforcing member 313, and the flange is arranged on the side of the diversion body 310 facing the condensation chamber 110. The flange can be separately provided from the diversion body 310 or integrally formed. When the flange and the diversion body 310 are integrally formed, the flange structure can be formed when the diversion body 310 is stamped to form the diversion channel 311. In other embodiments, the flange is fixed to the diversion body 310 by welding.

[0050] In other embodiments, sheet-like reinforcing ribs may be welded to the diversion body 310, wherein the reinforcing ribs are perpendicular to the diversion body 310, that is, the reinforcing ribs are parallel to the axial direction of the diversion channel 311. Multiple reinforcing ribs may be provided, and each reinforcing rib is arranged at intervals along the circumference of the diversion channel 311, and each reinforcing rib is arranged radially.

[0051] In some embodiments, the diversion channel 311 is elongated and extends in the same direction as the hot water exchange pipe 200. The length of the diversion channel 311 is greater than or equal to the length of the hot water exchange pipe 200, so that the flue gas can evenly contact the hot water exchange pipe 200 after passing through the diversion channel 311 and exchange heat. The hot water exchange pipe 200 extends in the left-right direction.

[0052] To improve the structural strength of the condenser, in some embodiments, the outer casing 100 has a first mounting hole into which the inlet section of the hot water exchange pipe 200 is inserted and welded to the outer casing 100. The outer casing 100 also has a second mounting hole into which the outlet section of the hot water exchange pipe 200 is inserted and welded to the outer casing 100. This connection fixes the outer casing 100 and the hot water exchange pipe 200 together, providing mutual support. This not only improves the structural strength of the condenser but also simplifies the structure. The outer casing 100, while enclosing the condensing chamber 110, also serves as a connector for the hot water exchange pipe 200, resulting in a clever and cost-effective design.

[0053] In other embodiments, to improve the flow effect of flue gas, two baffles are disposed in the condensation chamber 110. The two baffles are arranged at an angle and form an flared structure with the opening facing the flue gas outlet 130, so as to extend the flow path of the flue gas.

[0054] Furthermore, multiple hot water exchange pipes 200 are provided, all extending along the length of the outer casing 100. The baffle plates are connected to the side walls of the outer casing 100 and partially inserted into the gaps between adjacent hot water exchange pipes 200. Even further, some of the baffle plates located in the gaps between the hot water exchange pipes 200 have through holes to reduce the resistance of the flue gas, allowing some flue gas to flow upwards through the through holes.

[0055] This embodiment also provides a gas water heater, including a heat exchanger and a condenser as described in any of the above embodiments. The condenser is installed above the heat exchanger, which includes a housing with a heat exchange chamber and a flue gas outlet communicating with the heat exchange chamber. The flue gas outlet is connected to a flue gas inlet 120. It should be noted that the gas water heater also includes a burner and a fan. Gas is burned in the burner, and the fan blows the heat from the burner into the heat exchanger. The flue gas, after heat exchange in the heat exchanger, re-enters the condenser chamber 110 for secondary heat exchange with the hot water pipe 200. Finally, the flue gas is discharged from the gas water heater through the flue gas outlet 130.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A condenser, characterized in that, include: The housing (100) has a condensation chamber (110) and a flue gas inlet (120) and a flue gas outlet (130) communicating with the condensation chamber (110), wherein the flue gas outlet (130) is located above the flue gas inlet (120); The hot water pipe (200) is located inside the condensation chamber (110) and above the flue gas inlet (120); A diverter (300) is disposed within the condensation chamber (110) and located between the flue gas inlet (120) and the hot water exchange pipe (200), and the diverter (300) is connected to the outer shell (100); along the width direction of the outer shell (100), the diverter (300) is provided with two spaced diverter channels (311), and along the flow direction of the flue gas, the flue gas inlet (120), the diverter channel (311), the condensation chamber (110) and the flue gas outlet (130) are connected in sequence.

2. The condenser according to claim 1, characterized in that, The diversion component (300) includes a diversion body (310) and two guide plates (320). The diversion channel (311) is disposed on the diversion body (310). Along the width direction of the outer shell (100), the two guide plates (320) are disposed on the diversion body (310) and are located between the two diversion channels (311) and correspond one-to-one with the two diversion channels (311). The two guide plates (320) form an flared structure with the opening facing the hot water pipe (200). Each guide plate (320) at least partially blocks the corresponding diversion channel (311).

3. The condenser according to claim 2, characterized in that, The guide plate (320) includes a connecting part (321) and a guide part (322) connected to each other. The connecting part (321) is parallel to and connected to the diversion body (310). The guide part (322) is obliquely arranged above the corresponding diversion channel (311); and / or, The flow guide plate (320) and the flow divider body (310) are welded together.

4. The condenser according to claim 2, characterized in that, The diversion body (310) has a reinforcing member (313) arranged on the outer periphery of the diversion channel (311).

5. The condenser according to claim 4, characterized in that, The outer periphery of the diversion channel (311) is provided with an annular flange to form the reinforcing member (313), and is arranged on the side of the diversion body (310) facing the condensation chamber (110).

6. The condenser according to claim 2, characterized in that, The diversion body (310) has a V-shaped structure and the opening faces the hot water exchange pipe (200).

7. The condenser according to claim 6, characterized in that, The diversion body (310) forms a water collection tank (312) on the side facing the condensation chamber (110). The outer shell (100) has a drain hole that communicates with the water collection tank (312). The condenser also includes a drain pipe (140) that communicates with the drain hole to discharge condensate to the outside of the water collection tank (312).

8. The condenser according to any one of claims 1-7, characterized in that, In the vertical direction, the outline of the projection of the diverter (300) is located on the outer periphery of the outline of the projection of the hot water pipe (200).

9. The condenser according to any one of claims 1-7, characterized in that, The diversion channel (311) is elongated and extends in the same direction as the hot water exchange pipe (200); and / or, The length of the diversion channel (311) is greater than or equal to the length of the hot water exchange pipe (200).

10. A gas-fired water heater, characterized in that, The device includes a heat exchanger and a condenser as described in any one of claims 1-9, the heat exchanger comprising a housing having a heat exchange chamber and a flue gas outlet communicating with the heat exchange chamber, the condenser being mounted above the heat exchanger, and the flue gas outlet communicating with the flue gas inlet (120).

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