Cleaning device and gas water heater

Abstract

The invention relates to a removing device and a gas water heater, the removing device is used for the gas water heater and comprises a heat preservation bin and a fan, the heat preservation bin is used for being arranged on a combustor of the gas water heater, and a heat preservation cavity is formed in the heat preservation bin. The fan is provided with an air inlet and an air outlet, the air inlet communicates with the heat preservation cavity, and the air outlet is used for communicating with a water leakage point of the gas water heater. According to the removing device, the heat preservation bin is arranged outside the combustor, waste heat generated during work of the combustor can be obtained into the heat preservation cavity, and gas in the heat preservation cavity is heated to form hot gas. The draught fan can drive hot air in the heat preservation cavity to be blown to the water inlet, and leaked water possibly existing in the position is dried through wind power of the draught fan and heat of the hot air. Therefore, the cleaning device and the gas water heater can quickly clean the leaked water at the water inlet of the gas water heater by using the working waste heat of the combustor, so that the possibility that the accumulated water accumulates to corrode a shell and influence the normal operation of a circuit is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of gas water heaters, and in particular to a cleaning device and a gas water heater. Background Art

[0002] The core system of a gas water heater includes a combustion system, a heat exchange system and a water system, wherein the water system includes a water inlet part, a heat exchange part and a water outlet part. The water inlet part is mainly composed of a water inlet pipe, a flow stabilizer and a water pump. During use, there may be leakage at the water pump and the water inlet. These locations where leakage or accumulation of leakage may occur are leakage points. During long-term use, the leakage at the leakage point cannot be discharged or cleared in time, and accumulates in the outer shell of the water heater for a long time, which is prone to corrosion and rust of the outer shell of the water heater, resulting in reduced durability of the gas water heater; at the same time, the accumulated water may also affect the operation of the internal circuit of the gas water heater and affect the normal use of the gas water heater.

[0003] In the related art, water leakage from the water inlet of a gas water heater is mainly handled by collecting and discharging the water, specifically, by setting a groove in the shell and collecting and discharging the accumulated water in the groove. However, this technology may result in the accumulated water not being discharged in time, or corroding the shell of the gas water heater due to long-term accumulation. Summary of the invention

[0004] Based on this, it is necessary to provide a cleaning device and a gas water heater that can clean water leakage at the leakage point in order to solve the above-mentioned problems.

[0005] A cleaning device, used for a gas water heater, comprising:

[0006] A heat preservation chamber, which is used to be arranged on the burner of the gas water heater and has a heat preservation chamber therein; and

[0007] The fan has an air inlet and an air outlet, wherein the air inlet is connected to the heat preservation chamber, and the air outlet is used to connect to the water leakage point of the gas water heater.

[0008] In one embodiment, the insulation bin includes a bin body and a funnel structure, the insulation chamber is formed in the bin body, the funnel structure has an inlet end and an outlet end, and the flow area of ​​the inlet end is larger than the flow area of ​​the outlet end, the inlet end is connected to and communicated with the insulation chamber, and the outlet end is connected to the air inlet of the fan.

[0009] In one embodiment, the cleaning device further comprises an air duct having an air inlet end and an air outlet end, wherein the air inlet end is connected to and communicates with the outlet end of the funnel structure, and the air outlet end faces the water leakage point.

[0010] In one embodiment, the fan is disposed at the air outlet, and the air inlet faces the air inlet.

[0011] In one embodiment, the air outlet end is a profiled open mouth; and / or the bin body is a rectangular parallelepiped, and the funnel structure is a trapezoidal funnel.

[0012] In one of the embodiments, the heat preservation bin further has an air inlet hole connected to the heat preservation chamber.

[0013] A gas water heater comprises the cleaning device as described above.

[0014] In one of the embodiments, the gas water heater includes a burner, and the burner includes a shell; in the height direction of the gas water heater, the heat preservation chamber is arranged on the side of the shell and defines the heat preservation chamber on the surface of the shell.

[0015] In one embodiment, the insulation chamber includes a first panel, a second panel, a third panel and a fourth panel, the first panel is rectangular and is spaced apart from the shell, and the second panel, the third panel and the fourth panel are respectively connected to the three rectangular sides of the first panel and the shell.

[0016] In one embodiment, the edge of the heat preservation bin has an extension portion;

[0017] The extension portion is a bent plate, and the heat preservation chamber is connected to the shell through the extension portion by a snap-fit ​​connection; and / or the heat preservation chamber is connected to the shell through the extension portion by a threaded part.

[0018] In one embodiment, the gas water heater further includes a shell and a water inlet pipe, the shell has a water inlet and is connected to the water inlet pipe through the water inlet, and the water leakage point includes the water inlet.

[0019] The above-mentioned cleaning device and gas water heater, the insulation chamber is arranged outside the burner to obtain the residual heat of the burner to the insulation chamber, and heats the gas in the insulation chamber to form hot gas. The fan can drive the hot gas in the insulation chamber to blow to the water inlet, and use the wind force of the fan and the heat of the hot gas to dry the water leakage that may exist here. In this way, the cleaning device and the gas water heater can use the residual heat of the burner to quickly clean the water leakage at the water inlet of the gas water heater, so as to reduce the possibility of water accumulation corroding the shell and affecting the normal operation of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a partial structural schematic diagram of a gas water heater with a cleaning device in one embodiment of the present application.

[0022] Figure 2 for Figure 1 The schematic diagram of the structure of the gas water heater shown is shown at another angle.

[0023] Figure 3 This is a partial structural schematic diagram of a gas water heater with a cleaning device in another embodiment of the present application.

[0024] Figure 4 for Figure 1 Schematic diagram of the exploded structure of the gas water heater shown.

[0025] Explanation of the reference numerals: 100, cleaning device; 10, insulation bin; 11, insulation chamber; 13, air inlet; 15, bin body; 151, first panel; 152, second panel; 153, third panel; 154, fourth panel; 155, through hole; 17, funnel structure; 19, extension; 30, fan; 31, impeller part; 33, motor part; 35, support member; 50, air duct; 200, gas water heater; 210, burner; 211, shell; 2111, back plate; 2112, cover plate; 220, water leakage point; 230, outer shell; 240, heat exchanger; 250, water channel structure; 251, water inlet pipe. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore it should not be understood as a limitation on the present application.

[0028] In addition, if the term "and / or" appears, "and / or" is merely a way to describe the association relationship between associated objects, and indicates that three relationships may exist, for example, A and / or B can represent the association relationship between A and B: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that there is an "or" relationship between the associated objects before and after it. If the terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, four, five, etc., unless otherwise clearly and specifically defined.

[0029] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may 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. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0032] See also Figures 1 to 4 The cleaning device 100 provided in one embodiment of the present application is used for a gas water heater 200 and includes a heat preservation chamber 10 and a fan 30. The heat preservation chamber 10 is used to be arranged on a burner 210 of the gas water heater 200 and has a heat preservation chamber 11 therein. The fan 30 has an air inlet and an air outlet. The air inlet is connected to the heat preservation chamber 11, and the air outlet is used to be connected to a water leakage point 220 of the gas water heater 200.

[0033] The gas water heater 200 includes a housing 230 and a burner 210, a heat exchanger 240 and a water path structure 250 disposed in the housing 230. The burner 210 forms a combustion system of the gas water heater 200, the heat exchanger 240 forms a heat exchange system of the gas water heater 200, and the water path structure 250 forms a water path system of the gas water heater 200. The burner 210 includes a housing 211 and a fire grate and a combustion chamber located in the housing 211. The housing 211 may include a back plate 2111 and a cover plate 2112. The heat exchanger 240 is disposed above the burner 210 in the height direction of the gas water heater 200 to receive the heat generated by the burner 210 when it is working. The water path structure 250 is connected to the heat exchanger 240 and may include a water inlet part and a water outlet part. The water inlet part may include a water inlet pipe 251, a water pump, etc.

[0034] The heat preservation chamber 10 is arranged outside the burner 210, and can be specifically arranged on the shell 211 of the burner 210. The gas in the heat preservation chamber 11 can exchange heat with the shell 211 of the burner 210, thereby absorbing the waste heat generated by the operation of the burner 210.

[0035] It can be understood that the water leakage point 220 refers to a position where water leakage or water leakage may occur or accumulate during the use of the gas water heater 200, such as: a water pump, a water inlet of the housing 230, etc. The air outlet is used to connect to the water leakage point 220 of the gas water heater 200. The air outlet can be directly facing the water leakage point 220, or the air outlet can be connected to the air guide structure, and the air guide structure is facing the water leakage point 220. It only needs that the wind blown out of the air outlet can reach the water leakage point 220, and no specific limitation is made here.

[0036] The above-mentioned cleaning device 100 and gas water heater 200, the insulation chamber 10 is arranged outside the burner 210 and can obtain the residual heat of the burner 210 to the insulation chamber 11, and heat the gas in the insulation chamber 11 to form hot gas. The fan 30 can drive the hot gas in the insulation chamber 11 to blow to the water inlet, and use the wind force of the fan 30 and the heat of the hot gas to dry the water leakage that may exist here. In this way, the cleaning device 100 and the gas water heater 200 can use the residual heat of the burner 210 to quickly clean the water leakage of the gas water heater 200 at the water inlet, so as to reduce the possibility of water accumulation corroding the shell 230 and affecting the normal operation of the circuit. In addition, the insulation chamber 10 can also cool the burner 210 through the flowing gas to prevent its partial structure from being damaged by overheating or causing a reduction in life.

[0037] Furthermore, the heat preservation chamber 10 also has an air inlet 13 connected to the heat preservation chamber 11. It can be understood that the outside air can flow into the heat preservation chamber 11 through the air inlet 13.

[0038] Thus, when the fan 30 is running, the air inlet 13 can be used as an air replenishing hole, and external air can be replenished into the heat preservation chamber 11 through the air inlet 13. Specifically, the air flows continuously toward the water leakage point 220 after entering the heat preservation chamber 11 through the air inlet 13 and being heated.

[0039] In some embodiments, the insulation chamber 10 includes a chamber body 15 and a funnel structure 17, an insulation chamber 11 is formed in the chamber body 15, the funnel structure 17 has an inlet end and an outlet end, and the flow area of ​​the inlet end is larger than the flow area of ​​the outlet end, the inlet end is connected to and communicated with the insulation chamber 11, and the outlet end is connected to the air inlet of the fan 30.

[0040] It can be understood that the funnel structure 17 is at least partially a tapered structure from the inlet end to the outlet end, and the fluid flowing to the funnel structure 17 can flow into the funnel structure 17 from the inlet end, and after being gathered by the funnel structure 17, flow out of the funnel structure 17 from the outlet end. Specifically, the funnel structure 17 is located at one end of the heat preservation chamber 11.

[0041] In this way, the gas in the heat preservation chamber 11 can be gathered by the funnel structure 17 and flow toward the fan 30 in a concentrated manner, and finally flow toward the water leakage point 220 .

[0042] Furthermore, the bin body 15 is in a rectangular parallelepiped shape, and the funnel structure 17 is a trapezoidal funnel.

[0043] In this way, the bin body 15 can better adapt to the shell 211 of the burner 210 which is substantially in the shape of a rectangular parallelepiped, and accordingly the trapezoidal funnel can be tightly connected to the bottom of the bin body 15, and a sealed connection can be formed between the two.

[0044] In some embodiments, the cleaning device 100 further includes an air duct 50 , which has an air inlet end and an air outlet end. The air inlet end is connected to and communicates with the outlet end of the funnel structure 17 , and the air outlet end faces the water leakage point 220 .

[0045] In this way, the air guide 50 can accurately guide the hot gas gathered by the funnel structure 17 to the water leakage point 220. It can be understood that the length and extension path of the air guide 50 can be adaptively designed according to the location of the water leakage point 220. In addition, the number of air outlets can correspond to the number of water leakage points 220 and be set one by one with the water leakage points 220.

[0046] Further, the fan 30 is arranged at the air outlet, and the air inlet faces the air inlet. Specifically, the fan 30 may be partially located in the air outlet.

[0047] In this way, the negative pressure generated by the air inlet of the fan 30 can better drive the air flow from the air inlet end into the air duct 50 and flow along the air duct 50 to the air outlet end.

[0048] Furthermore, the air outlet is a profiled open mouth. It can be understood that the air inlet end of the air guide tube 50 cooperates with the outlet end of the funnel structure 17, and its diameter is substantially consistent with the port of the outlet end. The air outlet end of the air guide tube 50 cooperates with the fan 30, and its diameter is substantially consistent with the maximum diameter of the fan 30. In this way, the air outlet end is set as a profiled open mouth to better cooperate with the fan 30.

[0049] Specifically, the bin body 15 , the funnel structure 17 and the air guide pipe 50 can all be made of metal materials so as to have good high temperature resistance and be able to work stably in the gas water heater 200 .

[0050] In some other embodiments, the fan 30 includes an impeller portion 31 and a motor portion 33. The impeller portion 31 is fixed at the profile opening of the air duct 50. The lower end of the impeller portion 31 is connected to the motor portion 33 in a transmission manner. The end of the motor portion 33 is provided with a wire connected to the main board to obtain power. The bottom of the motor portion 33 is provided with a support member 35, and the bottom shell 230 of the gas water heater 200 is connected through the support member 35. Specifically, three equidistant "L"-shaped support members 35 are provided at the bottom of the motor portion 33, and a threaded opening is provided at the connection between the foot support of the support member 35 and the bottom shell 230 of the gas water heater 200. The motor portion 33 and the bottom shell 230 of the gas water heater 200 are fixed by screws through the support member 35.

[0051] The present application also provides a gas water heater 200 , comprising the above-mentioned cleaning device 100 .

[0052] It can be understood that, in order to realize its normal function, the gas water heater 200 also includes a shell 230 and a burner 210, a heat exchanger 240 and a water channel structure 250 arranged in the shell 230. Among them, the burner 210 forms the combustion system of the gas water heater 200, the heat exchanger 240 forms the heat exchange system of the gas water heater 200, and the water channel structure 250 forms the water channel system of the gas water heater 200. The burner 210 includes a shell 211 and a fire grate and a combustion chamber located in the shell 211. The shell 211 may include a back plate 2111 and a cover plate 2112. The heat exchanger 240 is arranged above the burner 210 in the height direction of the gas water heater 200 to receive the heat generated by the burner 210 when it is working. The water channel structure 250 is connected to the heat exchanger 240 and may include a water inlet part and a water outlet part, etc. The water inlet part may include a water inlet pipe 251, a water pump, etc.

[0053] In some embodiments, the housing 230 has a water inlet and is connected to the water inlet pipe 251 through the water inlet, and the water leakage point 220 includes the water inlet.

[0054] It is understandable that the water inlet pipe 251 is used to input cold water from the outside into the heat exchanger 240 , and water leakage or water accumulation may occur at the connection between the water inlet pipe 251 and the shell 230 .

[0055] In this way, using the water inlet as the water leakage point 220 can effectively reduce the probability of water accumulation at the location causing rust and more serious water leakage.

[0056] In some embodiments, in the height direction of the gas water heater 200 , the heat preservation chamber 10 is disposed on the side of the shell 211 and defines a heat preservation chamber 11 on the surface of the shell 211 .

[0057] The shell 211 may include a back plate 2111 and a cover plate 2112, and the heat preservation chamber 10 may be disposed on the cover plate 2112. Specifically, the chamber body 15 of the heat preservation chamber 10 is covered on the shell 211, and the heat preservation chamber 11 is formed on the surface of the shell 211, and the gas therein can directly contact and exchange heat with the shell 211.

[0058] In this way, the heat preservation chamber 10 is arranged on the side of the shell 211, which can not only obtain the residual heat of the burner 210, but also will not have too much influence on the burner 210 supplying heat to the heat exchanger 240 from the top.

[0059] Furthermore, the warehouse body 15 includes a first panel 151, a second panel 152, a third panel 153 and a fourth panel 154. The first panel 151 is rectangular and is spaced apart from the shell 211. The second panel 152, the third panel 153 and the fourth panel 154 respectively connect the three rectangular sides of the first panel 151 and the shell 211.

[0060] The second panel 152, the third panel 153, the fourth panel 154 and the funnel structure 17 are respectively arranged on the top edge, two side edges and the bottom edge of the first panel 151 in the height direction, and together with the first panel 151, they enclose the heat preservation chamber 11. Specifically, in the height direction of the gas water heater 200, the second panel 152 connects the top edge of the first panel 151 and the top surface of the shell 211, and the third panel 153 and the fourth panel 154 respectively connect the two side edges of the first panel 151 and the two side surfaces of the shell 211. Among them, at least one of the first panel 151, the second panel 152, the third panel 153 and the fourth panel 154 is provided with an air inlet 13. In a specific embodiment, the air inlet 13 is located on the first panel 151.

[0061] In this way, the second panel 152, the third panel 153, the fourth panel 154 and the funnel structure 17 of the insulation chamber 10 are respectively arranged on the four rectangular sides of the first panel 151, surrounding the side opposite to the first panel 151 and forming a port. The insulation chamber 10 can be installed on the shell 211 of the burner 210 through the end cover.

[0062] In this way, the heat preservation chamber 10 can form a close fit with the shell 211 of the burner 210, so that the gas in the heat preservation chamber 11 can obtain the residual heat generated by the operation of the burner 210.

[0063] In some embodiments, the edge of the heat preservation bin 10 has an extension portion 19 , and the extension portion 19 is used to connect the heat preservation bin 10 to the shell 211 of the burner 210 .

[0064] Further, at least one of the second panel 152, the third panel 153, the fourth panel 154 and the funnel structure 17 has an extension 19 at an edge away from the first panel. It can be understood that the second panel 152, the third panel 153, the fourth panel 154 and the funnel structure 17 can all have an extension 19, and each extension 19 is respectively attached to the top surface and two side surfaces of the burner 210.

[0065] In this way, the heat preservation chamber 10 can form a stable connection with the shell 211 of the burner 210 through the extension portion 19.

[0066] Further, the extension part 19 is a bent plate, and the heat preservation chamber 10 is snap-fitted with the shell 211 through the extension part 19. It can be understood that a matching structure matching with the extension part 19 can be formed on the shell 211 accordingly.

[0067] In this way, the heat preservation chamber 10 can be quickly installed on the shell 211 of the burner 210 by means of a snap connection.

[0068] In some other embodiments, the two side surfaces and the edge of the top surface of the shell 211 of the burner 210 may form an extension, and a curved arc structure may be constructed, and a snap connection may be formed with the heat preservation bin 10 through the curved arc structure. During the installation process, it is only necessary to align the three surfaces of the shell 211 having the curved arc structure with the ports of the heat preservation bin 10, and snap the curved arc structure of the shell 211 to the corresponding position of the heat preservation bin 10 to achieve fixation.

[0069] Furthermore, the heat preservation chamber 10 is connected to the shell 211 of the burner 210 through the extension 19 by a screw. It can be understood that the screw can be but not limited to a screw, etc., and the extension 19 and the shell 211 are correspondingly provided with a through hole 155 for the screw to pass through.

[0070] In this way, the heat preservation chamber 10 can be further fixed to the housing 211 of the burner 210 to prevent it from being separated from the housing 211 of the burner 210 during operation.

[0071] The above-mentioned cleaning device 100 and gas water heater 200 are provided by adding a small heat preservation chamber 10 including four sides, namely, left, right, top and front, to the surface shell of the burner 210. The lower end of the heat preservation chamber 10 has a trapezoidal funnel structure 17. An expanded metal air guide pipe 50 is provided at the outlet interface of the funnel structure 17. A small fan 30 is provided at the port of the air guide pipe 50. The small fan 30 can be aligned with the water inlet part of the gas water heater 200. The bottom of the left, right and front three sides of the heat preservation chamber 10 is connected to the trapezoidal funnel to form an integral structure. The left, right and top three sides of the heat preservation chamber 10 are connected to the shell 211 of the burner 210 through the extension 19, and the heat preservation chamber 10 and the shell 211 of the burner 210 are fixed by setting fixing screws at both ends of the left and right sides. The upper surface of the heat preservation chamber 10 (i.e., the second panel 152) is snap-fitted with the cover plate 2112 of the burner 210 through the bending structure of the extension 19. During the normal use of the gas water heater 200, the heat preservation chamber 10 can use the internal heat storage chamber to store a portion of the waste heat from the operation of the burner 210, and heat the gas by the waste heat to transport the hot gas through the trapezoidal funnel and the air duct 50 to the fan 30. The trapezoidal funnel is arranged at the bottom of the bin body 15 and is sealed to the bin body 15. The trapezoidal funnel has four faces, each of which gradually shrinks inward from top to bottom, and finally a circular interface sealed on all sides is arranged at the interface. A circular metal air duct 50 with a certain thickness is connected at the circular interface, and the air duct 50 is arranged with a profile opening at the end to facilitate the connection of the fan 30.

[0072] During the operation of the gas water heater 200, the fan 30 is started, and the fan 30 transmits the heated gas in the heat preservation chamber 10 to the water inlet part of the gas water heater 200 through the trapezoidal funnel and the air guide pipe 50 at a high speed. Due to the high air flow rate and the certain heat of the air flow, the water leakage at the water pump and other positions can be dried and cleared in time during use, avoiding the long-term accumulation of water inside the gas water heater 200, causing the outer shell 230 of the gas water heater 200 to corrode and rust, and affecting the operation of the circuit, causing safety problems such as leakage.

[0073] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A cleaning device, characterized in that: The cleaning device is used for a gas water heater and comprises: A heat preservation chamber (10), which is used to be arranged on the burner (210) of the gas water heater and has a heat preservation chamber (11) therein; and The fan (30) has an air inlet and an air outlet, the air inlet being connected to the heat preservation chamber (11), and the air outlet being used to be connected to a water leakage point (220) of the gas water heater.

2. The cleaning device according to claim 1, characterized in that: The heat preservation bin (10) comprises a bin body (15) and a funnel structure (17), wherein the heat preservation chamber (11) is formed in the bin body (15), and the funnel structure (17) has an inlet end and an outlet end, wherein the flow area of ​​the inlet end is larger than the flow area of ​​the outlet end, the inlet end is connected to and communicates with the heat preservation chamber (11), and the outlet end is connected to an air inlet of the fan (30).

3. The cleaning device according to claim 2, characterized in that: The cleaning device further comprises an air guide pipe (50), the air guide pipe (50) having an air inlet end and an air outlet end, the air inlet end being connected to and in communication with the outlet end of the funnel structure (17), and the air outlet end facing the water leakage point (220).

4. The cleaning device according to claim 3, characterized in that: The fan (30) is arranged at the air outlet end, and the air inlet faces the air inlet end.

5. The cleaning device according to claim 4, characterized in that: The air outlet end is a profiled open mouth; and / or the bin body (15) is in the shape of a rectangular parallelepiped, and the funnel structure (17) is a trapezoidal funnel.

6. The cleaning device according to claim 1, characterized in that: The heat preservation bin (10) further comprises an air inlet (13) connected to the heat preservation chamber (11).

7. A gas water heater, characterized in that: Comprising a cleaning device as described in any one of claims 1-6.

8. The gas water heater according to claim 7, characterized in that: The gas water heater comprises a burner (210), and the burner (210) comprises a shell (211); in the height direction of the gas water heater, the heat preservation chamber (10) is arranged on the side of the shell (211) and defines the heat preservation chamber (11) on the surface of the shell (211).

9. The gas water heater according to claim 8, characterized in that: The heat preservation chamber (10) comprises a first panel (151), a second panel (152), a third panel (153) and a fourth panel (154); the first panel (151) is rectangular and is spaced apart from the shell (211); the second panel (152), the third panel (153) and the fourth panel (154) respectively connect three rectangular sides of the first panel (151) and the shell (211).

10. The gas water heater according to claim 8, characterized in that: The edge of the heat preservation bin (10) has an extension portion; The extension portion is a bent plate, and the heat-insulating bin (10) is connected to the shell (211) in a snap-fit ​​connection via the extension portion; and / or the heat-insulating bin (10) is connected to the shell (211) via the extension portion via a threaded member.

11. The gas water heater according to claim 7, characterized in that: The gas water heater further comprises a shell (230) and a water inlet pipe (251); the shell (230) has a water inlet and is connected to the water inlet pipe (251) via the water inlet; the water leakage point (220) comprises the water inlet.

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