Condenser and gas water heater

Abstract

The invention relates to the technical field of water heaters, and particularly discloses a condenser and a gas water heater, the condenser comprises a shell, a heat exchange water pipe, a guiding piece and a collecting piece, the shell is provided with a condensation cavity, a smoke inlet and a smoke outlet, and the smoke inlet and the smoke outlet are communicated with the condensation cavity; the heat exchange water pipe is located in the condensation cavity and located above the smoke inlet. The guiding piece is arranged in the condensation cavity and located between the smoke inlet and the heat exchange water pipe, and the guiding piece is provided with two flow dividing channels arranged at intervals in the width direction of the shell. The collecting part is arranged in the condensation cavity and located between the heat exchange water pipe and the guiding part, the collecting part and the guiding part are arranged at intervals, and a water collecting groove is formed in the side, away from the guiding part, of the collecting part so as to collect condensate water dripping from the heat exchange water pipe. During installation, the occupied space is small, the use experience of a user is improved, and the secondary heat exchange efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of water heater technology, and more particularly to a condenser and a gas water heater. Background Technology

[0002] Most household gas water heaters have an energy efficiency rating of Level 2. To achieve energy savings and high efficiency, a Level 1 energy efficiency gas water heater is required. The principle behind a Level 1 energy efficiency gas water heater is to recover and reuse the heat from the flue gas discharged from the heat exchanger of a standard Level 2 energy efficiency gas water heater through a heat recovery device, thereby improving thermal efficiency. This heat recovery device serves both as a secondary heat exchanger and as a condenser for collecting and discharging condensate.

[0003] In related technologies, the condenser is typically positioned above the heat exchanger. To prevent condensate from flowing downwards into the heat exchanger, the condenser and heat exchanger are sealed separately and connected via external piping. The condenser's air inlet is located above the bottom of the condenser, allowing flue gas exiting the heat exchanger to enter the condenser, while preventing condensate from entering the heat exchanger through the piping. However, this setup results in a complex overall structure, larger size, and greater space requirements during installation, leading to a poor user experience. Furthermore, the condensate absorbs a significant amount of heat from the flue gas in the condenser, reducing the amount of heat absorbed and utilized by the heat exchanger pipes in the condenser, resulting in low secondary heat exchange efficiency.

[0004] Therefore, there is an urgent need to research a condenser and a gas water heater to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a condenser and a gas water heater to solve the problems of large space occupation and low secondary heat exchange efficiency in the prior art.

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

[0007] A condenser is installed above a heat exchanger, the heat exchanger including a housing having 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; the condenser includes:

[0008] The housing has a condensation chamber and a flue gas inlet and a flue gas outlet communicating with the condensation chamber;

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

[0010] A guide member is disposed in the condensation chamber and located between the flue gas inlet and the hot water exchange pipe. Along the width direction of the outer shell, the guide member has two spaced-apart diversion channels.

[0011] A collection component is disposed in the condensation chamber and located between the hot water exchange pipe and the guide component, and is spaced apart from the guide component. A water collection tank is provided on the side of the collection component away from the guide component to collect the condensate dripping from the hot water exchange pipe.

[0012] As an optional technical solution for the condenser, the collecting member has two water guiding surfaces with opposite inclination directions on the side away from the guide member. The two water guiding surfaces form an flared structure with the opening facing the hot water exchange pipe, and the water collection tank is formed between the two water guiding surfaces.

[0013] As an optional technical solution for the condenser, a guide groove is recessed on the water guide surface, the opening of the guide groove faces the hot water exchange pipe, and the opening of the guide groove has a flared structure. The lower end of the guide groove is connected to the water collection tank, and the guide groove is configured to collect condensate and gather the condensate into the water collection tank.

[0014] As an optional technical solution for the condenser, a plurality of guide grooves are recessed on the water guide surface, and the plurality of guide grooves are arranged at intervals along the extension direction of the water collection tank; and / or,

[0015] The guide channel is an arc-shaped channel or a V-shaped channel.

[0016] As an alternative technical solution for the condenser, the collecting element is formed by bending a plate-like piece to create the water collection trough at the bend; and / or,

[0017] The collection component is made of heat-insulating material.

[0018] As an optional technical solution for the condenser, the water collection tank extends along the length of the outer shell, the outer shell is provided with a drain hole, and the condenser also includes a drain pipe that communicates with the drain hole to discharge condensate to the outside of the water collection tank.

[0019] As an optional technical solution for the condenser, the water collection tank is arranged at an angle, and the drain hole is correspondingly arranged at the lowest position of the bottom of the water collection tank; and / or,

[0020] The drain pipe is arranged at an angle, and the outlet of the drain pipe is lower than the inlet.

[0021] As an optional technical solution for a condenser, the guide includes a guide body and two guide plates. The flow distribution channel is located on the guide body. Along the width direction of the outer shell, the two guide plates are both located on the guide body and are positioned 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 the opening facing the hot water exchange pipe. Each guide plate at least partially blocks the corresponding flow distribution channel.

[0022] As an optional technical solution for a condenser, the guide plate includes a connecting part and a guiding part, the connecting part being connected to the guide body, and the guiding part being inclinedly arranged above the corresponding flow distribution channel; and / or,

[0023] The flow guide plate and the guide body are welded together.

[0024] As an alternative technology for condensers, the projection of the collecting element overlaps the projection of the two guide plates in the vertical direction.

[0025] As an alternative technical solution for the condenser, the guide body has two smoke guiding surfaces with opposite inclination directions on the side away from the collector, and the distance between the two smoke guiding surfaces gradually increases along the direction away from the flue gas inlet.

[0026] As an optional technical solution for a condenser, along the width direction of the outer shell, the size of the baffle is smaller than the size of the smoke guiding surface, and the inclination angle of the smoke guiding surface is smaller than the inclination angle of the baffle.

[0027] As an optional technical solution for the condenser, the collecting member has two water guiding surfaces with opposite inclination directions on the side away from the guide member, and the inclination angle of the water guiding surface is greater than the inclination angle of the smoke guiding surface.

[0028] As an optional technical solution for the condenser, the condenser further includes a heat insulation element disposed between the guide element and the collecting element; and / or,

[0029] The condenser also includes a sound-absorbing element, which is disposed between the guide and the collecting element.

[0030] As an optional technical solution for the condenser, the condenser further includes a deflector plate disposed in the condensation chamber and located between the diversion channel and the flue gas outlet. Along the line connecting the diversion channel and the flue gas outlet, at least a portion of the deflector plate blocks the flue gas outlet.

[0031] As an optional technical solution for the condenser, the deflector includes a mounting part and a shielding part that are connected to each other and arranged at an angle. The mounting part is connected to the housing and the shielding part blocks the flue gas outlet along the line connecting the diversion channel to the flue gas outlet.

[0032] As an optional technical solution for a condenser, the condenser has a plurality of heat exchange pipes arranged at intervals and connected in sequence, and at least part of the shielding part is inserted into the gap between two adjacent heat exchange pipes.

[0033] A gas water heater includes the heat exchanger described above and the condenser described in any of the 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.

[0034] The present invention has at least the following beneficial effects:

[0035] This invention provides a condenser and a gas water heater. The condenser includes a shell, a hot water exchange pipe, a guide member, and a collector. The shell has a condensation chamber and a flue gas inlet and a flue gas outlet communicating with the condensation chamber. The hot water exchange pipe is located inside the condensation chamber and above the flue gas inlet. The guide member is located inside the condensation chamber and between the flue gas inlet and the hot water exchange pipe. Along the width direction of the shell, the guide member has two spaced-apart diversion channels. The collector is located inside the condensation chamber and between the hot water exchange pipe and the guide member, and is spaced apart from the guide member. A water collection tank is provided on the side of the collector away from the guide member to collect condensate dripping from the hot water exchange pipe.

[0036] In use, the condenser is installed above the heat exchanger. The heat exchanger includes a shell with a heat exchange chamber and a flue gas outlet communicating with the heat exchange chamber; the flue gas outlet is connected to the flue gas inlet. The flue gas flowing out of the heat exchanger enters the condensation chamber directly through the flue gas inlet. Under the action of the guide component's diversion channel, the flue gas is divided into two streams, which enter the condensation chamber from the front and rear sides respectively. This prolongs the flow path of the flue gas, thereby increasing the flow time to provide sufficient time for heat exchange. The larger flow range increases the contact area with the hot water exchange pipes, improving the absorption of heat from the flue gas by the hot water exchange pipes and enhancing the secondary heat exchange efficiency. The water collection tank of the collection component collects the condensate dripping from the hot water exchange pipes, preventing it from dripping downwards and entering the heat exchange chamber through the flue gas outlet.

[0037] In addition, the condensate is collected in the water collection tank. The collected condensate has a smaller surface area, which reduces the contact area with the air in the condensation chamber and lowers the rate of heat absorption. Thus, at the same flow rate, the absorption of heat from the flue gas is reduced, which helps to improve the absorption and utilization rate of heat from the flue gas by the heat exchanger pipe and improve the secondary heat exchange efficiency.

[0038] By opening a flue gas inlet at the bottom of the casing to connect with the flue gas outlet, when applied to gas water heaters, it helps to reduce the height and simplify the structure; and it eliminates the need for external piping, reducing the circumferential dimensions, thus making the overall size smaller, taking up less space during gas water heater installation, and improving the user experience. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the condenser in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the exploded structure of the condenser in an embodiment of the present invention;

[0042] Figure 3 This is a schematic cross-sectional view of the condenser in an embodiment of the present invention;

[0043] Figure 4 This is a schematic diagram of the guide component in an embodiment of the present invention.

[0044] In the picture:

[0045] 100. Outer shell; 110. Condensation chamber; 120. Flue gas inlet; 130. Flue gas outlet; 140. Drain pipe;

[0046] 200. Replace the hot water pipe;

[0047] 300. Guide component; 310. Guide body; 311. Diversion channel; 312. Smoke guide surface; 313. Reinforcing component; 314. Baffle plate; 320. Flow deflector; 321. Connecting part; 322. Flow deflector;

[0048] 400. Collector; 410. Water guide surface; 420. Water collection trough; 430. Flow guide channel;

[0049] 500. Steering plate; 510. Mounting part; 520. Covering part. Detailed Implementation

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] like Figures 1 to 4 As shown, this embodiment provides a condenser, which includes a housing 100, a hot water exchange pipe 200, a guide member 300, and a collector 400. 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. The hot water exchange pipe 200 is located inside the condensation chamber 110 and above the flue gas inlet 120. The guide member 300 is located inside the condensation chamber 110 and between the flue gas inlet 120 and the hot water exchange pipe 200, and has two spaced-apart diversion channels 311 along the width direction of the housing 100. The collector 400 is located inside the condensation chamber 110 and between the hot water exchange pipe 200 and the guide member 300, and is spaced apart from the guide member 300. A water collection tank 420 is provided on the side of the collector 400 away from the guide member 300 to collect condensate dripping from the hot water exchange pipe 200. The width direction refers to the front-to-back direction.

[0058] In use, the condenser is installed above the heat exchanger. The heat exchanger includes a shell with a heat exchange chamber and a flue gas outlet communicating with the heat exchange chamber; the flue gas outlet is connected to the flue gas inlet 120. The flue gas that has completed heat exchange in the heat exchanger and is flowing out directly enters the condenser chamber 110 through the flue gas inlet 120. Under the action of the diversion channel 311 of the guide 300, the flue gas is divided into two streams, which enter the condenser chamber 110 from the front and rear sides respectively. This extends the flow path of the flue gas, thereby increasing the flow time to provide sufficient time for heat exchange. The larger flow range increases the contact area with the heat exchange pipe 200, improving the absorption of heat from the flue gas by the heat exchange pipe 200 and enhancing the secondary heat exchange. Heat exchange efficiency; the water collection tank 420 of the collection component 400 can collect the condensate dripping from the hot water pipe 200, preventing it from dripping downwards and entering the heat exchange chamber through the flue outlet; by opening a flue gas inlet 120 at the bottom of the outer shell 100 to connect with the flue outlet of the shell, when applied to a gas water heater, there is no need to set up a support frame connecting the two, which helps to reduce the height dimension and simplify the structure; and there is no need to set up external piping, reducing the circumferential dimension, thus making the overall size smaller, occupying less space during installation, and improving the user experience.

[0059] In addition, the condensate is collected in the water collection tank 420. The collected condensate has a smaller surface area, which reduces the contact area with the air in the condensation chamber 110 and reduces the rate of heat absorption. Thus, at the same discharge rate, the absorption of heat from the flue gas is reduced, which helps to improve the absorption and utilization rate of heat from the flue gas by the hot water exchange pipe 200 and improve the secondary heat exchange efficiency.

[0060] The collecting component 400 has two water-guiding surfaces 410 with opposite inclination directions on the side away from the guide component 300. The two water-guiding surfaces 410 form an flared structure with openings facing the heat exchange pipe 200, and a water collection trough 420 is formed between the two water-guiding surfaces 410. This arrangement allows condensate to quickly gather towards the center after dripping onto the water-guiding surfaces 410, reducing the surface area of ​​the condensate and thus reducing the contact area with the flue gas in the condensation chamber 110. This reduces the absorption of heat from the flue gas, thereby lowering the temperature of the condensate when it is discharged and increasing the proportion of heat from the flue gas that is utilized and absorbed by the heat exchange pipe 200, thus further improving the heat exchange effect.

[0061] To facilitate the drainage of condensate from the collection tank 420 to the outside, in some embodiments, the collection tank 420 extends along the length of the outer casing 100. The outer casing 100 is provided with a drain hole, and the condenser also includes a drain pipe 140, which communicates with the drain hole to drain the condensate to the outside of the collection tank 420. Further, the collection tank 420 is arranged at an angle, and the drain hole is correspondingly located at the lowest point of the bottom of the collection tank 420 to increase the flow rate of the condensate and reduce the time and amount of heat absorbed from the flue gas. The drain pipe 140 is also arranged at an angle, and its outlet is lower than its inlet, resulting in faster drainage and reducing the residence time of the condensate in the drain pipe 140 and the collection tank 420, thereby reducing heat absorption and lowering the probability of corrosion. The length direction is left-right.

[0062] A guide channel 430 is recessed on the water guide surface 410. The opening of the guide channel 430 faces the hot water exchange pipe 200, and the opening of the guide channel 430 is an flared structure. The lower end of the guide channel 430 is connected to the water collection tank 420. The guide channel 430 is configured to collect condensate and gather the condensate into the water collection tank 420.

[0063] When condensate drips into the guide channel 430, it can quickly flow to the bottom of the collection tank 420 under the convergence effect of the flared guide channel 430 without collecting other condensate droplets. This reduces the time it takes for the condensate to reach the bottom of the collection tank 420, thus reducing the amount of heat absorbed from the flue gas during the flow process and further increasing the proportion of heat absorbed by the heat exchanger pipe 200. In addition, the flared guide channel 430 allows the condensate to quickly gather to the bottom of the guide channel 430 when it drips, reducing splashing and increasing the water surface height, thereby increasing the flow speed and reducing the time for absorbing heat from the flue gas. This further reduces the amount of heat absorbed from the flue gas and further increases the proportion of heat absorbed by the heat exchanger pipe 200. Furthermore, because the condensate gathers to the bottom of the guide channel 430 after dripping into it, the surface area of ​​the water is reduced, thus reducing the amount of heat absorbed from the flue gas and further increasing the proportion of heat absorbed by the heat exchanger pipe 200. Finally, the design of the flow channel 430 helps to improve the structural strength of the collector 400 and prevent vibration.

[0064] In some embodiments, a plurality of guide channels 430 are recessed on the water guiding surface 410, and the plurality of guide channels 430 are arranged at intervals along the extension direction of the water collecting tank 420 to receive condensate dripping from the hot water exchange pipe 200 at any position. For ease of production, in some embodiments, the guide channels 430 are arc-shaped channels or V-shaped channels. In other embodiments, the guide channels 430 may also be U-shaped channels, or the cross-section of the guide channel 430 may be other flared curved structures.

[0065] To increase the water flow rate, the guide channel 430 is polished. In some embodiments, both the guide channel 430 and the collection tank 420 are polished. Furthermore, the entire guide surface 410 is polished. Exemplarily, the guide surface 410 is mirror-like, which, while increasing the condensate flow rate, also helps reflect heat radiated to the guide surface 410 back onto the heat exchange pipe 200, thereby improving the utilization rate of flue gas heat. In other embodiments, a heat-insulating coating can also be applied to the guide surface 410 to reduce the absorption of heat by the condensate.

[0066] To reduce the residence time of condensate on the guide member 300, in some embodiments, the guide channel 430 is inclined towards the drain hole from top to bottom to minimize the flow path of the condensate. Furthermore, a section of the guide channel 430 near the water collection tank 420 extends along an arc tangent to the extension direction of the water collection tank 420, so that when the condensate flows to the water collection tank 420, its flow direction is the same as the extension direction of the water collection tank 420, allowing it to continue flowing directly along the extension direction of the water collection tank 420, further shortening the time it takes for the condensate to reach the drain hole.

[0067] Specifically, the collecting component 400 is formed by bending a plate-shaped piece to form a water collection trough 420 at the bend. The manufacturing process is simple, the production cost is low, and the structural strength is high.

[0068] The guide member 300 includes a guide body 310 and two guide plates 320. A diversion channel 311 is provided on the guide body 310 along the width direction of the outer shell 100. The two guide plates 320 are both provided on the guide 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 side wall in the width direction of the outer shell 100. After contacting the inner side wall, 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.

[0069] To improve the structural stability of the guide member 300, the guide plate 320 and the guide body 310 are welded together. Specifically, the guide plate 320 includes a connecting portion 321 and a guiding portion 322. The connecting portion 321 is welded to the guide body 310, and the guiding portion 322 is inclinedly arranged above the corresponding diversion channel 311. The connection portion 321 effectively increases the connection area between the guide plate 320 and the guide body 310, improving the connection strength. The connecting portion 321 is planar and contacts the surface of the guide body 310.

[0070] In the vertical direction, the projection of the collecting element 400 covers the projection of the two guide plates 320, so that the condensate will not drip onto the guide plates 320 and avoid absorbing the heat of the guide plates 320, thereby allowing the heat of the flue gas to be exchanged with the hot water pipe 200 in the condensation chamber 110 as much as possible.

[0071] The guide body 310 has two smoke-guiding surfaces 312 with opposite inclination directions on the side away from the collector 400, and the distance between the two smoke-guiding surfaces 312 gradually increases in the direction away from the flue gas inlet 120. This arrangement allows the flue gas to smoothly enter the two diversion channels 311 along the smoke-guiding surfaces 312, reducing resistance and impact, increasing flow velocity, and reducing noise. The guide body 310 forms a V-shaped structure after bending at the middle position in the front-rear direction, and the two connected surfaces on the lower side form the two smoke-guiding surfaces 312.

[0072] Along the width of the housing 100, the size of the baffle 320 is smaller than that of the smoke guiding surface 312, and the tilt angle of the smoke guiding surface 312 is smaller than that of the baffle 320. This tilt angle arrangement helps to guide the flue gas upward smoothly, and the smaller size of the baffle 320 helps to reduce the occupation of height space, effectively reducing the height of the housing 100, reducing installation space, and improving user experience.

[0073] To further increase the outflow rate of condensate, in some embodiments, the inclination angle of the water guide surface 410 is greater than the inclination angle of the smoke guide surface 312. In some embodiments, the inclination angle of the water guide surface 410 is equal to the inclination angle of the smoke guide surface 312, so as to reduce the overall height of the condenser.

[0074] Since the flue gas bypasses the guide member 300 and the collector 400 from below and enters the condensation chamber 110, part of the heat of the flue gas in the condensation chamber 110 is absorbed by the hot water pipe 200. This results in the flue gas temperature below the guide member 300 being higher than the flue gas temperature above the collector 400. To reduce the heat transfer from the flue gas to the condensate on the collector 400, in some embodiments, the condenser also includes a heat insulation element disposed between the guide member 300 and the collector 400. The heat insulation element, along with the collector 400 and the guide member 300, are spaced apart, which helps to reduce the heat transfer from the flue gas below the guide member 300 to the condensate on the collector 400. Furthermore, the collector 400 is made of insulating material to reduce heat transfer efficiency and lower the temperature of the condensate.

[0075] In some embodiments, the condenser further includes a sound-absorbing element disposed between the guide member 300 and the collection member 400 to absorb noise generated during operation, especially noise generated by flue gas flow, thereby improving the quietness of operation. The sound-absorbing element can be a polyester fiber sound-absorbing panel.

[0076] To avoid the diversion channel 311 affecting the structural strength of the guide body 310, in some embodiments, the guide 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 guide body 310 and prevent vibration and noise from occurring when flue gas passes through.

[0077] 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 guide body 310 facing the condensation chamber 110. The front and rear sides of the guide body 310 respectively abut against the inner sidewall of the outer shell 100, and the flange can also prevent condensate falling from the inner sidewall of the outer shell 100 from entering the diversion channel 311. The flange can be separately provided with the guide body 310 or integrally formed. When the flange and the guide body 310 are integrally formed, the flange structure can be formed when the guide body 310 is stamped into the diversion channel 311. In other embodiments, the flange is fixed to the guide body 310 by welding.

[0078] The flanged side near the sidewall of the outer casing 100 extends upward to form a baffle 314, which is used to block condensate water falling from the sidewall of the outer casing 100 and prevent splashing condensate water from falling into the diversion channel 311. In this embodiment, the hot water exchange pipes 200 all extend in the left-right direction and are connected sequentially. All the hot water exchange pipes 200 form a heat exchange group. In the front-back direction, the width of the collecting member 400 is smaller than the width of the guide body 310, but larger than the width of the heat exchange group. The collecting member 400 collects the condensate water dripping from the heat exchange group, and the portion of the guide body 310 located outside the collecting member 400 collects the condensate water falling from the front and rear sidewalls of the outer casing 100. The two ends of the collecting member 400 in the left-right direction are welded to the outer casing 100. The condensate water on the guide body 310 also flows out through the drain hole. In some embodiments, the collecting member 400 is provided with a drain hole to drain the condensate water to the guide body 310 below. The drain hole is directly opposite the guide body 310 to facilitate the drainage of the condensate water. In some embodiments, along the left-right direction, the projection of the lowest point of the water collection tank 420 is located in the drain hole, and the projection of the lowest point of the upper surface of the guide body 310 is flush with the lower sidewall of the drain hole.

[0079] The condenser also includes a deflector plate 500, which is disposed in the condensation chamber 110 and located between the diversion channel 311 and the flue gas outlet 130. Along the line connecting the diversion channel 311 and the flue gas outlet 130, at least part of the deflector plate 500 blocks the flue gas outlet 130, so that the flue gas can bypass the deflector plate 500 and flow toward the flue gas outlet 130, thereby extending the flow path of the flue gas and improving the utilization rate of flue gas heat.

[0080] The steering plate 500 includes a mounting portion 510 and a shielding portion 520 connected to each other and arranged at an angle. The mounting portion 510 is connected to the housing 100, and the shielding portion 520 shields the flue gas outlet 130 along the line connecting the diversion channel 311 to the flue gas outlet 130. The mounting portion 510 is a plate-shaped structure and is welded to the top plate of the housing 100, which increases the connection strength and the strength of the top plate, thereby reducing vibration caused by flue gas impact.

[0081] The shielding part 520 is provided with at least one through hole to allow some flue gas to pass through, thereby reducing the impact of airflow on the shielding part 520, reducing its strength requirements, and reducing costs; at the same time, it reduces the impact force on the shielding part 520, thereby reducing the possibility of vibration.

[0082] The condenser has several heat exchange pipes 200 arranged at intervals and connected in sequence. At least part of the shielding part 520 is inserted into the gap between two adjacent heat exchange pipes 200 so that the flue gas passes through the heat exchange pipes 200 at different positions during the flow process, thereby improving the heat exchange efficiency.

[0083] To improve heat exchange efficiency, in some embodiments, the condenser includes two deflector plates 500, each corresponding to one of the two diversion channels 311, and is located on both sides of the flue gas outlet 130, arranged symmetrically about the axis of the flue gas outlet 130. Two shielding portions 520 form flared structures with openings facing the flue gas outlet 130. Two streams of flue gas enter the condensing chamber 110 from both sides, then move upwards first, then downwards, and after passing around the deflector plates 500, move upwards and exit from the flue gas outlet 130.

[0084] In use, cooler water flows through the heat exchange pipe 200, is heated, and then flows out. In some embodiments, the collection element 400 has a heat exchange chamber and an inlet and an outlet connecting to the heat exchange chamber. The inlet is connected to an external water source. Cooler water first passes through the collection element 400 and then flows out from the outlet, before entering the heat exchange pipe 200 for heat exchange and finally flowing out. This arrangement allows the water to cool the collection element 400 first, reducing the heat that the condensate on the upper side can absorb, thereby increasing the heat absorption capacity of the heat exchange pipe 200 and improving the secondary heat exchange efficiency.

[0085] This embodiment also improves 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 shell 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, and finally exits the gas water heater through the flue gas outlet 130.

[0086] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. 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 the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A condenser characterized by, The heat exchanger comprises a shell having a heat exchange cavity and a smoke outlet communicating with the heat exchange cavity; The smoke outlet and the smoke inlet (120) are communicated; the condenser comprises: An outer shell (100) having a condensation cavity (110), a smoke inlet (120) and a smoke outlet (130) communicating with the condensation cavity (110); A heat exchange water pipe (200) located in the condensation cavity (110) and above the smoke inlet (120); A guide member (300) located in the condensation cavity (110) and between the smoke inlet (120) and the heat exchange water pipe (200), the guide member (300) having two spaced-apart flow distribution channels (311) along the width direction of the outer shell (100); A collection member (400) located in the condensation cavity (110) and between the heat exchange water pipe (200) and the guide member (300), and spaced apart from the guide member (300), the collection member (400) being provided with a water collection groove (420) on the side away from the guide member (300) to collect condensate water dripping from the heat exchange water pipe (200).

2. The condenser of claim 1, wherein The side of the collection member (400) away from the guide member (300) has two water guide surfaces (410) with opposite inclined directions, the two water guide surfaces (410) forming a flared structure with an opening facing the heat exchange water pipe (200), and the water collection groove (420) being formed between the two water guide surfaces (410).

3. The condenser of claim 2, wherein, The water guide surface (410) is concave and provided with a flow guide groove (430), the groove opening of the flow guide groove (430) facing the heat exchange water pipe (200), the groove opening of the flow guide groove (430) being a flared structure, the lower end of the flow guide groove (430) communicating with the water collection groove (420), and the flow guide groove (430) being configured to collect condensate water and converge the condensate water to the water collection groove (420).

4. The condenser of claim 3, wherein The water guide surface (410) is concave and provided with a plurality of flow guide grooves (430), the plurality of flow guide grooves (430) being spaced apart along the extension direction of the water collection groove (420); and / or, The flow guide groove (430) is an arc-shaped groove or a V-shaped groove.

5. The condenser of claim 1, wherein The collection member (400) is bent from a plate-shaped member to form the water collection groove (420) at the bent portion; and / or, The collection member (400) is made of a heat-insulating material.

6. The condenser of claim 1, wherein The water collection groove (420) extends along the length direction of the outer shell (100), the outer shell (100) is provided with a drain hole, and the condenser further comprises a drain pipe (140) communicating with the drain hole to drain the condensate water outside the water collection groove (420).

7. The condenser of claim 6, wherein The water collection groove (420) is inclined, and the drain hole is arranged at the lowest position of the groove bottom of the water collection groove (420); and / or, The drain pipe (140) is inclined, and the outlet of the drain pipe (140) is lower than the inlet.

8. The condenser of claim 1, wherein The guide piece (300) comprises a guide body (310) and two guide plates (320), the shunt channel (311) is arranged on the guide body (310), along the width direction of the shell (100), two guide plates (320) are arranged on the guide body (310) and located between and corresponding to the two shunt channels (311), two guide plates (320) form a flared structure with an opening facing the heat exchange water pipe (200), and each guide plate (320) at least partially blocks the corresponding shunt channel (311).

9. The condenser of claim 8, wherein, The guide plate (320) comprises a connecting portion (321) and a guide portion (322), the connecting portion (321) is connected with the guide body (310), and the guide portion (322) is arranged obliquely above the corresponding shunt channel (311); and / or, The guide plate (320) and the guide body (310) are welded.

10. The condenser of claim 8, wherein, In the vertical direction, the projection of the collecting piece (400) covers the projections of the two guide plates (320).

11. The condenser of claim 8, wherein, The side of the guide body (310) away from the collecting piece (400) has two smoke guide surfaces (312) with opposite oblique directions, and the distance between the two smoke guide surfaces (312) gradually increases away from the flue gas inlet (120).

12. The condenser of claim 11, wherein, Along the width direction of the shell (100), the size of the guide plate (320) is smaller than the size of the smoke guide surface (312), and the oblique angle of the smoke guide surface (312) is smaller than the oblique angle of the guide plate (320).

13. The condenser of claim 11, wherein, The side of the collecting piece (400) away from the guide piece (300) has two water guide surfaces (410) with opposite oblique directions, and the oblique angle of the water guide surface (410) is greater than the oblique angle of the smoke guide surface (312).

14. The condenser according to any one of claims 1 to 13, characterized in that The condenser further comprises a heat insulation piece arranged between the guide piece (300) and the collecting piece (400); and / or, The condenser further comprises a sound absorbing piece arranged between the guide piece (300) and the collecting piece (400).

15. The condenser according to any one of claims 1 to 13, characterized in that The condenser further comprises a deflection plate (500) arranged in the condensing cavity (110) and located between the shunt channel (311) and the flue gas outlet (130), at least part of the deflection plate (500) blocks the flue gas outlet (130) along the connecting line direction between the shunt channel (311) and the flue gas outlet (130).

16. The condenser of claim 15, wherein, The deflection plate (500) comprises a mounting portion (510) and a blocking portion (520) connected and arranged at an included angle, the mounting portion (510) is connected to the shell (100), and the blocking portion (520) blocks the flue gas outlet (130) along the connecting line direction between the shunt channel (311) and the flue gas outlet (130).

17. The condenser of claim 16, wherein, The condenser has a plurality of heat exchange water pipes (200) arranged at intervals and communicated in sequence, and at least part of the shielding part (520) is inserted into the gap between two adjacent heat exchange water pipes (200).

18. A gas water heater, characterized by, The condenser according to any one of claims 1-17 is installed above the heat exchanger, and the smoke outlet of the heat exchanger and the smoke inlet (120) of the condenser are communicated.

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