Condensate water box for wall-hanging stove and wall-hanging stove

Abstract

The utility model provides a condensate water box for a wall-hanging stove, which comprises a box body and a box cover, and the box body is fixedly connected with the box cover. The box cover comprises a water inlet, and the water inlet extends downwards from the upper surface of the box cover to form a water inlet pipe; the box body comprises a mounting part, a water outlet and a partition plate, the partition plate is arranged in the box body and divides an inner cavity of the box body into a water storage area and a water drainage area, the water inlet is communicated with the water storage area, and the water outlet is communicated with the water drainage area; and the mounting part is arranged outside the box body, is fixedly connected with the box body and is used for connecting the condensate water box with a wall-hanging stove. The condensate water box is compact in structure, convenient to install and suitable for wall-hanging stoves of different sizes.

Description

Technical Field

[0001] This utility model belongs to the field of water heater technology, specifically relating to a condensate box for a wall-hung boiler and the wall-hung boiler itself. Background Technology

[0002] A wall-hung boiler is a small thermal energy device that uses natural gas, liquefied petroleum gas (LPG), electricity, etc., primarily for residential heating and hot water supply. Its full name is gas-fired wall-mounted rapid heating water heater, and its working principle is similar to that of a traditional water heater. Taking natural gas as an example, the natural gas burns in the boiler's combustion chamber, and the heat generated is transferred to the circulating water through a heat exchanger. The heat exchanger is one of the core components of the boiler; it allows the high-temperature flue gas produced by combustion to exchange heat with the circulating water. The heated water then circulates through a piping system in indoor radiators (such as heating radiators) or underfloor heating systems, thus achieving indoor heating. However, during the combustion of fossil fuels, high-temperature flue gas is inevitably produced. When this high-temperature flue gas exchanges heat with the circulating water in the heat exchanger, the water vapor in the flue gas condenses upon cooling, forming condensate. This condensate flows through specific channels or drain outlets of the heat exchanger to a condensate box.

[0003] like Figure 1 As shown, this is an existing condensate box with three inlets on the top, leaving many unused ports that need to be plugged. The box has mounting holes on the front and back, but these cannot be directly mounted on the main unit; a sheet metal bracket is required, complicating the installation process. The box is also quite large, occupying significant installation space and hindering the miniaturization of the main unit. In summary, existing condensate boxes suffer from complex structures, large sizes, high installation space requirements, complicated installation procedures, and high material costs. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a condensate box for a wall-hung boiler that is compact in structure and easy to install, and a wall-hung boiler that uses the condensate box.

[0005] To solve the above-mentioned technical problems, this utility model provides a condensate box for a wall-hung boiler, the condensate box including a box body and a box cover, the box body and the box cover being fixedly connected;

[0006] The lid includes a water inlet, which extends downward from the upper surface of the lid to form a water inlet pipe;

[0007] The box body includes a mounting part, a drain outlet, and a partition. The partition is disposed inside the box body and divides the inner cavity of the box body into a water storage area and a drainage area. The water inlet is connected to the water storage area, and the drain outlet is connected to the drainage area.

[0008] The mounting part is disposed outside the box and fixedly connected to the box body, and is used to connect the condensate box to the wall-hung boiler.

[0009] Preferably, the partition extends upward from the bottom of the box body, so that the water storage area and the drainage area are connected in the upper part of the inner cavity of the box body.

[0010] Preferably, the lowest point of the water inlet pipe is lower than the highest point of the partition, and the water inlet pipe extends into the water storage area.

[0011] Preferably, the lid further includes a detection mechanism, which is disposed above the drainage area. The detection mechanism includes two blockage detection ports penetrating the lid and a detection element disposed on the blockage detection port. The detection element extends from the blockage detection port into the inner cavity of the box body.

[0012] Preferably, the lid is further provided with an air pressure balancing port, which penetrates the lid and communicates with the inner cavity of the box body.

[0013] Preferably, the box body further includes a water seal plug and a plug that is connected thereto. The water seal plug is located in the water storage area and communicates with the water storage area. The plug and the water seal plug are detachably connected, and a sealing gasket is provided at the connection.

[0014] Preferably, the drain outlet extends downward from the lower surface of the box to form a drain connection, and the drain connection, the box, and the water seal plug are integrally formed.

[0015] Preferably, the mounting portions are respectively disposed on opposite sides of the box body and extend outward relative to the box body. The mounting portions are provided with mounting grooves, and mounting nuts are provided in the mounting grooves for fixed connection with the wall-mounted boiler.

[0016] Preferably, the water inlet extends upward from the upper surface of the cover to form a water inlet connection, and the water inlet connection, the cover, and the water inlet pipe are integrally formed.

[0017] This utility model also provides a wall-hung boiler, which includes a shell, a combustion module, a heat exchange module, a circulation module, a control module, and a condensate box as described in any of the above. The shell forms a receiving cavity, and the combustion module, heat exchange module, circulation module, control module, and condensate box are installed in the receiving cavity. The condensate box is connected to the heat exchange module and is used to collect condensate and blockage flue gas generated by the heat exchange module.

[0018] Compared to existing technologies, the condensate box and wall-hung boiler in this solution have at least the following beneficial effects:

[0019] 1. The condensate box provided in this solution has only one inlet and one outlet, which reduces unnecessary inlets compared to existing condensate boxes. This makes the condensate box compact and allows for a smaller overall size to accommodate different wall-hung boilers.

[0020] 2. The condensate box in this solution has a mounting part inside the box for direct connection and installation with the wall-hung boiler. Compared with the existing condensate boxes, it avoids the need for additional sheet metal brackets and other accessories, which simplifies the installation method of the condensate box and the wall-hung boiler, and further reduces the space required for the installation of the condensate box.

[0021] 3. The condensate box in this design extends the water inlet into the box body. When the condensate box is working normally, the water inlet extends into the condensate, preventing combustion flue gas from passing through the condensate box and being discharged into other components or leaking outside the wall-hung boiler, thus improving the safety of the wall-hung boiler and the user experience. Attached Figure Description

[0022] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0023] Figure 1 This is a schematic diagram of the structure of a condensate box for a wall-hung boiler in this field;

[0024] Figure 2 This is a schematic diagram of the structure of the condensate box for a wall-hung boiler provided in an embodiment of the present utility model;

[0025] Figure 3 A cross-sectional schematic diagram of a condensate box for a wall-mounted boiler provided in an embodiment of this utility model;

[0026] Figure 4 A schematic diagram of the structure of the condensate box for a wall-mounted boiler provided in an embodiment of this utility model;

[0027] Figure 5 A top view of the condensate box body for a wall-mounted boiler provided in an embodiment of this utility model;

[0028] Figure 6 A schematic diagram of the structure of the cover of the condensate box for a wall-mounted boiler provided in an embodiment of this utility model;

[0029] Figure 7 This is a top view of the cover of the condensate box for a wall-mounted boiler provided in an embodiment of the present utility model. Detailed Implementation

[0030] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand this utility model and implement it. However, the embodiments are not intended to limit this utility model. In this embodiment, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0031] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to and integrated with the other element, or there may be an intervening element present. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.

[0032] Please refer to Figures 2-7 This utility model embodiment provides a condensate box 1 for a wall-hung boiler. The condensate box 1 includes a box body 2 and a box cover 3, which are fixedly connected. It can be understood that the materials of the box body 2 and the box cover 3 of the condensate box 1 can be plastic, die-cast aluminum, die-cast magnesium, die-cast copper or other alloy materials. The fixing method of the box body 2 and the box cover 3 can be ultrasonic welding, hot melt welding, laser welding or vibration welding, etc. The connection method can be selected according to the different materials of the box body 2 and the box cover 3. It is necessary to ensure that there are no leaks at the connection between the box body 2 and the box cover 3. In this embodiment, the cover 3 includes a water inlet 301, which extends downward from the upper surface of the cover 3 to form a water inlet pipe 302; the box body 2 includes a mounting part 201, a drain outlet 202, and a partition 203. The partition 203 is disposed inside the box body 2, dividing the inner cavity of the box body 2 into a water storage area 204 and a drainage area 205. The water inlet 301 is connected to the water storage area 204, and the drain outlet 202 is connected to the drainage area 205. Understandably, the inlet 301 is connected to the water storage area 204, while the inlet pipe 302 extends into the water storage area 204. When the condensate box 1 is working normally, condensate enters the water storage area 204 from the inlet 301 and the inlet pipe 302. When the condensate level rises, the condensate will pass over the lowest point of the inlet pipe 302, thus creating a water seal at the outlet of the inlet pipe 302. This prevents the flue gas generated from combustion from passing through the condensate box 1 and being discharged into other components or leaking outside the wall-hung boiler, thereby improving the safety and user experience of the wall-hung boiler.

[0033] Please refer to Figures 2-5In this embodiment, the mounting part 201 is disposed outside the box body 2 and fixedly connected to the box body 2 for connecting the condensate box 1 to the wall-mounted boiler. It is understood that the mounting part 201 can be welded to the box body 2 or fixedly connected by an integral molding method; the mounting part 201 enables the condensate box 1 to be directly connected and installed to the wall-mounted boiler, avoiding the need for additional sheet metal brackets and other connecting components, simplifying installation and making subsequent maintenance more convenient.

[0034] Please refer to Figure 3 In this embodiment, the partition 203 extends upward from the bottom of the box 2, connecting the water storage area 204 and the drainage area 205 in the upper part of the inner cavity of the box 2. It can be understood that the partition 203 can be integrally formed with the box 2, or it can be welded and fixed to the inner cavity of the box 2. As shown in the figure, taking the condensate box 1 placed vertically as an example, the partition 203 is fixedly connected to the bottom of the box 2 and is vertically set. The partition 203 extends upward but does not contact the box cover 3; that is, there is a gap between the top of the partition 203 and the inner side of the box cover 3, so that the water storage area 204 and the drainage area 205 are connected in the upper part of the inner cavity of the box 2. When the condensate box 1 is working normally, the condensate will be directly discharged into the water storage area 204. As it continues to work, the water level in the water storage area 204 gradually rises. When the water level reaches the top of the partition 203, the condensate overflows the partition 203 and is discharged from the drainage area 205. The partition 203 makes the condensate box 1 form a water storage area 204. Together with the water inlet pipe 302, a water seal structure can be formed on the water inlet pipe 302 to block the combustion flue gas.

[0035] Please refer to Figures 2-4 In a further embodiment, the inlet pipe 302 extends downward from the inlet 301 to form the inlet pipe 302. The lowest point of the inlet pipe 302 is lower than the highest point of the partition 203, and the inlet pipe 302 extends into the water storage area 204. It can be understood that the lowest point of the inlet pipe 302 mentioned here refers to the end of the inlet pipe 302 that extends into the water storage area 204, and the highest point of the partition 203 refers to the end of the partition 203 that extends upward from the bottom. The fact that the lowest point of the inlet pipe 302 is lower than the highest point of the partition 203 ensures that under normal operating conditions of the condensate box 1, i.e., when the end of the inlet pipe 302 is deeply inserted into the condensate, the flue gas that enters from the inlet 301 cannot escape into the drainage area 205.

[0036] Please refer to Figures 2-3 , Figures 6-7In this embodiment, the cover 3 also includes a detection mechanism 303, which is disposed above the drainage area 205. The detection mechanism 303 includes two blockage detection ports 304 penetrating the cover 3 and detection elements 305 disposed on the blockage detection ports 304. The detection elements 305 extend from the blockage detection ports 304 into the inner cavity of the box body 2. Understandably, the two blockage detection ports 304 are arranged adjacent to each other, and the two detection elements 305 are respectively disposed in the blockage detection ports 304. When the drain outlet 202 of the drainage area 205 is blocked or the pipe connected to the drain outlet 202 of the condensate box 1 is blocked, condensate will accumulate in the drainage area 205, and the water level in the drainage area 205 will rise. When the water level rises to the end of the detection element 305, the two detection elements 305 are short-circuited through the condensate connection, thereby issuing a warning or directly stopping the entire wall-hung boiler to remind the user to perform maintenance. For example, the detection component 305 can be a detection screw, and the material can be stainless steel, nickel-plated alloy, chrome-plated alloy, etc.; it can also be a detection component 305 with an alarm function, such as a detection component that can light up when two detection components 305 are short-circuited.

[0037] Please refer to Figure 7 In a preferred embodiment, the cover 3 is further provided with a pressure balancing port 306, which penetrates the cover 3 and communicates with the inner cavity of the box body 2. Understandably, the pressure balancing port 306 connects the inner cavity of the box body 2 with the external environment, ensuring that the pressure inside the box body 2 remains consistent with atmospheric pressure. This prevents the inner cavity of the box body 2 from becoming filled with condensate due to blockage of the drain outlet 202 or drain pipe, which could cause the condensate to backflow from the inlet 301 into the previous module, such as the heat exchange module, and thus cause irreversible damage to the entire wall-hung boiler. When the drain outlet 202 or drain pipe of the condensate box 1 is blocked and the condensate box 1 is full of condensate before the user notices, the condensate will overflow from the pressure balancing port 306, thus reminding the user to perform timely maintenance.

[0038] Please refer to Figures 2-3In this embodiment, the box body 2 also includes a water seal plug 206 and a plug 207 connected thereto. The water seal plug 206 is located in and communicates with the water storage area 204. The plug 207 is detachably connected to the water seal plug 206, and a sealing gasket 208 is provided at the connection. Understandably, the water seal plug 206 is located on one side of the water storage area 204 and can be used for maintenance of the water storage area 204, such as cleaning the sediment in the water storage area 204. Since the water storage area 204 is directly connected to the water inlet 301, flue gas and condensate will be discharged into the condensate. Some components in the flue gas may solidify upon cooling and settle at the bottom of the water storage area 204. The water seal plug 206 facilitates regular cleaning of the condensate box 1 by the user. Exemplarily, the plug 207 and the water seal plug 206 are detachably connected, such as by a threaded connection or a snap-fit ​​connection, to facilitate subsequent opening of the plug 207 for maintenance and cleaning.

[0039] Please refer to Figures 2-4 In a preferred embodiment, the drain outlet 202 extends downward from the lower surface of the housing 2 to form a drain connection portion 209. The drain connection portion 209, the housing 2, and the water seal plug 206 are integrally formed. Understandably, the drain connection portion 209 is used to connect to other components or to a drain pipe. The drain connection portion 209 is integrally formed with the housing 2 and extends outward, facilitating connection to other components and reducing potential leakage points in the condensate box 1, thus improving the safety of the condensate box 1. In a further preferred embodiment, the drain connection portion 209 may be provided with threads or multiple spaced protrusions, which helps to improve the firmness of the connection with other components.

[0040] Please refer to Figures 2-5 In this embodiment, the mounting portions 201 are respectively disposed on opposite sides of the housing 2 and extend outward relative to the housing 2. The mounting portions 201 are provided with mounting grooves 210, and mounting nuts 211 are disposed in the mounting grooves 210 for fixed connection with the wall-hung boiler. It can be understood that the mounting portions 201 extend outward relative to the housing 2, which facilitates connection with the entire wall-hung boiler. The mounting grooves 210 penetrate through the mounting portions 201, and are configured as a first groove corresponding to the shape and size of the mounting nuts 211 on the side facing the housing cover 3. The middle of the first groove extends downward to the other side of the mounting portions 201 to form a second groove. With this configuration, the mounting nuts 211 are fixed in the first groove. When the condensate box 1 is connected to the wall-hung boiler, the bolts are fixedly connected through the mounting nuts 211 and the second groove.

[0041] Please refer to Figures 2-3 , Figure 6In a preferred embodiment, the water inlet 301 extends upward from the upper surface of the cover 3 to form a water inlet connection 307, and the water inlet connection 307, the cover 3, and the water inlet pipe 302 are integrally formed. Understandably, similar to the drain connection 209, the water inlet connection 307 is integrally formed with the box body 2 and extends outward, facilitating connection with other components and reducing potential leakage points in the condensate box 1, thus improving the safety of the condensate box 1. In a further preferred embodiment, the water inlet connection 307 may be provided with threads or multiple spaced protrusions, which helps to improve the firmness of the connection with other components.

[0042] This utility model embodiment also provides a wall-hung boiler, which includes a shell, a combustion module, a heat exchange module, a circulation module, a control module, and a condensate box as described in the above embodiment. A receiving cavity is formed inside the shell, and the combustion module, heat exchange module, circulation module, control module, and condensate box are installed in the receiving cavity. The condensate box is connected to the heat exchange module and is used to collect condensate and blockage flue gas generated by the heat exchange module.

[0043] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A condensate box for a wall-hung boiler, characterized in that, The condensate water box comprises a box body and a box cover, and the box body and the box cover are fixedly connected; The box cover comprises a water inlet, which extends downward from the upper surface of the box cover to form a water inlet pipe; The box body comprises a mounting portion, a water outlet and a partition plate, the partition plate is arranged in the box body, the inner cavity of the box body is divided into a water storage area and a water drainage area, the water inlet communicates with the water storage area, and the water outlet communicates with the water drainage area; The mounting portion is arranged outside the box body and fixedly connected with the box body, and is used for connecting the condensate water box with the wall-hanging stove.

2. The condensate box for a wall-hanging boiler according to claim 1, wherein The partition plate extends upward from the bottom of the box body, so that the water storage area and the water drainage area communicate in the upper part of the inner cavity of the box body.

3. The condensate drain pan of claim 2, wherein, The lowest part of the water inlet pipe is lower than the highest part of the partition plate, and the water inlet pipe extends into the water storage area.

4. The condensate drain pan of claim 1, wherein, The box cover further comprises a detection mechanism arranged above the water drainage area, the detection mechanism comprises two blockage detection ports penetrating through the box cover and a detection piece arranged on the blockage detection ports, and the detection piece extends into the inner cavity of the box body from the blockage detection ports.

5. The condensate drain pan of claim 1, wherein, The box cover is further provided with an air pressure balance port penetrating through the box cover and communicating with the inner cavity of the box body.

6. The condensate drain pan of claim 1, wherein, The box body further comprises a water blockage port and a block cover matched and connected with the water blockage port, the water blockage port is arranged in the water storage area and communicates with the water storage area, and the block cover is detachably connected with the water blockage port and is provided with a sealing gasket at the connection position.

7. The condensate drain pan of claim 6, wherein the condensate drain pan is configured to be mounted to a wall of a wall-hung boiler. The water outlet extends downward from the lower surface of the box body to form a water drainage connecting portion, and the water drainage connecting portion, the box body and the water blockage port are integrally formed.

8. The condensate drain pan of claim 1, wherein, The mounting portions are respectively arranged at opposite sides of the box body and extend outward relative to the box body, the mounting portions are provided with mounting grooves, mounting nuts are arranged in the mounting grooves, and the mounting nuts are used for fixedly connecting with the wall-hanging stove.

9. The condensate drain pan of claim 1, wherein, The water inlet extends upward from the upper surface of the box cover to form a water inlet connecting portion, and the water inlet connecting portion, the box cover and the water inlet pipe are integrally formed.

10. A wall-hung boiler, characterized in that, The wall-hanging stove comprises a shell, a combustion module, a heat exchange module, a circulation module, a control module and the condensate water box according to any one of claims 1-9, an accommodating cavity is formed in the shell, the combustion module, the heat exchange module, the circulation module, the control module and the condensate water box are arranged in the accommodating cavity, the condensate water box communicates with the heat exchange module, and is used for collecting the condensate water generated by the heat exchange module and blocking the flue gas.

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