Pipeline assembly and gas water heater

Abstract

The utility model relates to the technical field of gas water heaters, in particular to a pipeline assembly and a gas water heater, and the pipeline assembly comprises a water supply pipeline, a water outlet pipeline and a water outlet pipeline, the side pipe is arranged on one side of the water supply pipeline and provided with a storage cavity communicated with the conveying flow channel, and a sterilization lamp is installed in the storage cavity; the elastic sealing gasket is compressed and filled between the sterilizing lamp and the side wall of the storage cavity; in the direction from the sterilizing lamp to the side wall of the storage cavity, the sealing gasket sequentially comprises a sealing gasket body and a sealing rib arranged on the sealing gasket body in a protruding mode. The pipeline assembly is provided with the sterilizing lamp, and the sterilizing lamp can sterilize water more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of gas water heaters, and more specifically to a pipeline assembly and a gas water heater. Background Art

[0002] A gas water heater, also known as a gas water boiler, refers to a gas appliance that uses gas as fuel and transfers heat to cold water flowing through a heat exchanger through combustion heating to achieve the purpose of preparing hot water.

[0003] A gas water heater includes a pipeline assembly formed by connecting a plurality of pipelines for water supply to circulate, enabling water to flow according to the required path. In some existing gas water heaters, a sterilization lamp (such as an ultraviolet lamp) is provided in the pipeline assembly; by irradiating the water in the pipeline assembly with the sterilization lamp, the water in the pipeline assembly is sterilized to optimize the water quality so as to output higher-quality hot water.

[0004] It should be noted that most existing sterilization lamps are directly placed in the water supply pipeline of the pipeline assembly. This not only obstructs the water flow in the water supply pipeline, but also under the impact of the water flow, the sterilization lamp often cannot stably sterilize the water and is prone to failure. Summary of the Utility Model

[0005] One of the purposes of the present utility model is to provide, in view of the deficiencies of the prior art, a pipeline assembly with a sterilization lamp that can more stably sterilize water.

[0006] Another purpose of the present utility model is to provide a gas water heater with the above pipeline assembly.

[0007] The technical solution measures of the present utility model are as follows:

[0008] A pipeline assembly, comprising:

[0009] A water supply pipeline having a conveying channel for water supply to circulate;

[0010] A side pipe provided on one side of the water supply pipeline and having a storage cavity communicated with the conveying channel, and a sterilization lamp is installed in the storage cavity;

[0011] A gasket filled between the sterilization lamp and the side wall of the storage cavity;

[0012] In the direction from the sterilization lamp to the side wall of the storage cavity, the gasket sequentially includes: a gasket body, and a sealing rib protruding from the gasket body.

[0013] Further as a preferred solution, the gasket body is an annular member adapted to be sleeved around the outer periphery of the sterilization lamp;

[0014] The sealing rib is an annular protrusion arranged around the sealing gasket body.

[0015] Further as a preferred solution, an installation opening is provided at one end of the storage cavity away from the conveying flow channel, through which the sterilization lamp and the sealing gasket enter and exit the storage cavity;

[0016] At the installation opening, there is provided: a cover plate for covering the installation opening;

[0017] The cover plate is detachably fixed to the side pipe.

[0018] Further as a preferred solution, the sealing rib is arranged to extend obliquely, so that the side surface of the sealing rib facing the conveying flow channel is: an inclined surface for guiding the sealing gasket to be inserted into the storage cavity.

[0019] Further as a preferred solution, the sealing rib is arranged at: one end of the sealing gasket close to the installation opening.

[0020] Further as a preferred solution, the sterilization lamp is fixedly connected to the side surface of the cover plate facing the storage cavity.

[0021] Further as a preferred solution, a raised flange portion is provided on the outer periphery of one end of the sealing gasket close to the cover plate;

[0022] The flange portion has elasticity and is filled in a compressed state between the cover plate and the side pipe.

[0023] Further as a preferred solution, a clamping groove opening towards the cover plate is provided on the side wall of the installation opening;

[0024] The flange portion is adaptively filled in the clamping groove.

[0025] Further as a preferred solution, a protective cover is provided in the channel formed by the connection of the storage cavity and the conveying flow channel, which is located on the side of the sterilization lamp facing the conveying flow channel and has a plurality of light passing holes to form: a mesh structure for preventing the sterilization lamp from falling into the conveying flow channel.

[0026] Further as a preferred solution, the protective cover is provided with an object clamping groove, and the opening of the object clamping groove faces the sterilization lamp.

[0027] The gas water heater includes the pipeline assembly described in any of the above solutions.

[0028] The main beneficial effects of the above technical solutions are as follows:

[0029] A side pipe is provided on one side of the water supply pipeline, and the sterilization lamp is installed in the storage cavity communicated with the conveying flow channel, so that while the sterilization lamp can sterilize the water flow in the conveying flow channel, the impact of the water flow in the conveying flow channel is weakened, enabling the sterilization lamp to sterilize the water more stably.

[0030] Meanwhile, a gasket is provided, which can better support and position the sterilization lamp, improve the installation stability of the sterilization lamp, and enable the sterilization lamp to more stably sterilize water.

[0031] Further or more detailed beneficial effects will be described in combination with specific embodiments in the specific implementation manner. Brief Description of the Drawings

[0032] The following further describes the present utility model with reference to the drawings:

[0033] Figure 1 It is a schematic diagram of the overall structure of the pipeline assembly.

[0034] Figure 2 It is a schematic cross-sectional view of the installation of the protective cover Figure 1 .

[0035] Figure 3 It is a schematic cross-sectional view of the installation of the protective cover Figure 2 .

[0036] Figure 4 It is a schematic cross-sectional view of the installation of the protective cover Figure 3 .

[0037] As shown in the figure: water supply pipeline - 1, conveying flow channel - 1.1, side pipe - 2, placement cavity - 2.1, limiting part - 2.2, installation opening - 2.3, clamping groove - 2.31, supporting part - 2.4, sterilization lamp - 3, installation column - 3.1, lamp cover - 3.2, installation cavity - 3.3, lamp tube - 3.4, protective cover - 4, light passing hole - 4.1, object clamping groove - 4.2, overlapping part - 4.3, cover plate - 5, fastener - 6, gasket - 7, gasket body - 7a, sealing rib - 7b, flange part - 7.1, heat exchanger housing - 8. Specific Embodiment

[0038] The following specifically illustrates the present utility model in combination with embodiments:

[0039] Embodiment 1:

[0040] A pipeline assembly for supplying water to flow in a gas water heater.

[0041] Specifically, as shown in FIGS. Figure 1 to FIGS. Figure 4 The pipeline assembly in this embodiment includes a water supply pipeline 1. The water supply pipeline 1 is a long pipeline formed by connecting several pipes and joints, and has a conveying flow channel 1.1 for water supply to flow. The water supply pipeline 1 is extended according to the path where the water needs to flow, so that the water can flow in the conveying flow channel 1.1 according to the required path.

[0042] In order to be able to sterilize the water flowing in the water supply pipeline 1 to optimize the water quality. In this embodiment, a sterilization lamp 3 is provided. The sterilization lamp 3 is, for example, a lamp assembly with an ultraviolet lamp, which can emit ultraviolet rays with a wavelength of 265 - 580 mn, irradiate the water flowing in the water supply pipeline 1, and sterilize it to purify the water quality.

[0043] Specifically, as shown in the attached Figure 2 to the attached Figure 3 As shown in the figure, in this embodiment, a side pipe 2 is provided on one side of the water supply pipeline 1. The side pipe 2 is welded to a side wall of the water supply pipeline 1; or the side pipe 2 is a part of the joint constituting the water supply pipeline 1. At the same time, a placement cavity 2.1 is formed inside the side pipe 2 in a cavity shape. As shown in the attached Figure 2 figure, the lower end opening of the placement cavity 2.1 is communicated with the conveying channel 1.1.

[0044] In this embodiment, the sterilization lamp 3 is arranged in the placement cavity 2.1. During operation, the ultraviolet rays emitted by the sterilization lamp 3 irradiate into the conveying channel 1.1 through the connection path between the placement cavity 2.1 and the conveying channel 1.1 to sterilize the water flow in the conveying channel 1.1. In this way, on the one hand, it can avoid the sterilization lamp 3 from hindering the flow of water in the conveying channel 1.1; on the other hand, the flowing water in the conveying channel 1.1 is not likely to impact the sterilization lamp 3, enabling the sterilization lamp 3 to more stably sterilize the water.

[0045] Furthermore, as shown in the attached Figure 1 to the attached Figure 4 figure, a sealing gasket 7 can be additionally provided, which is filled between the sterilization lamp 3 and the side wall of the placement cavity 2.1 to fill the gap between the sterilization lamp 3 and the placement cavity 2.1 and support and position the sterilization lamp 3.

[0046] Still further, the sealing gasket 7 in this embodiment is preferably made of elastic materials such as rubber or silica gel and has elasticity. Moreover, the sealing gasket 7 is filled between the sterilization lamp 3 and the side wall of the placement cavity 2.1 in a compressed state. On the one hand, it can support the sterilization lamp 3 and improve the installation stability of the sterilization lamp 3 so that it can irradiate and sterilize more stably; on the other hand, it can form an elastic buffer structure between the sterilization lamp 3 and the inner wall of the placement cavity 2.1, reducing the possibility of the sterilization lamp 3 being damaged after being impacted.

[0047] In this embodiment, as shown in the attached Figure 3As shown in the figure, in order for the gasket 7 to be inserted more easily between the germicidal lamp 3 and the inner wall of the storage cavity 2.1, in the direction from the germicidal lamp 3 to the side wall of the storage cavity 2.1, the gasket 7 sequentially includes: a gasket body 7a, and a sealing rib 7b protruding from the gasket body 7a. By making the sealing rib 7b in contact with the side wall of the storage cavity 2.1, the contact area between the gasket 7 and the side wall of the storage cavity 2.1 can be reduced, the frictional force during the installation of the gasket 7 can be weakened, and the smoothness of its installation can be improved.

[0048] Moreover, the sealing rib 7b is preferably arranged at: one end of the gasket 7 close to the installation opening 2.3. In this way, when the end of the gasket 7 without the sealing rib 7b (for example, the lower end of the gasket 7 in the figure) is to be inserted into the storage cavity 2.1, due to the absence of the sealing rib 7b, the outer diameter of this end is smaller, and it can be inserted into the storage cavity 2.1 more easily. As the insertion depth increases, the sealing rib 7b is inserted into the storage cavity 2.1 accordingly, improving the sealing effect. Figure 4 As shown in the figure, when the end of the gasket 7 without the sealing rib 7b (for example, the lower end of the gasket 7 in the figure) is to be inserted into the storage cavity 2.1, due to the absence of the sealing rib 7b, the outer diameter of this end is smaller, and it can be inserted into the storage cavity 2.1 more easily. As the insertion depth increases, the sealing rib 7b is inserted into the storage cavity 2.1 accordingly, improving the sealing effect.

[0049] The gasket 7 is preferably arranged to fit the outer contour of the germicidal lamp 3, and is an annular part adapted to be sleeved on the outer periphery of the germicidal lamp 3, so as to better position and protect the germicidal lamp 3.

[0050] When the gasket 7 is an annular part, the gasket body 7a is an annular part adapted to be sleeved on the outer periphery of the germicidal lamp 3, and the sealing rib 7b is an annular protrusion surrounding the gasket body 7a.

[0051] On the above basis, in order to facilitate the installation of the germicidal lamp 3.

[0052] As shown in the figure Figure 2 to Figure 4 As shown in the figure, at one end of the storage cavity 2.1 far from the conveying channel 1.1 (for example, the upper end of the storage cavity 2.1 shown in the figure) there is provided an installation opening 2.3, and the diameter of the installation opening 2.3 is set according to the size of the germicidal lamp 3 to form an opening for the germicidal lamp 3 to enter and exit the storage cavity 2.1. Figure 2 As shown in the figure, at one end of the storage cavity 2.1 far from the conveying channel 1.1 (for example, the upper end of the storage cavity 2.1 shown in the figure) there is provided an installation opening 2.3, and the diameter of the installation opening 2.3 is set according to the size of the germicidal lamp 3 to form an opening for the germicidal lamp 3 to enter and exit the storage cavity 2.1.

[0053] Meanwhile, at the installation opening 2.3 there is a cover plate 5 for covering the installation opening 2.3, and the cover plate 5 is detachably fixed to the side pipe 2.

[0054] Specifically, as shown in the figure Figure 1 As shown in the figure, a support part 2.4 is protrudingly arranged on the outer edge of the installation opening 2.3, and the cover plate 5 is fixed on the support part 2.4 by a fastener 6 (such as a screw) to block and cover the installation opening 2.3.

[0055] During assembly, by removing the cover plate 5, the germicidal lamp 3 can be placed into the storage cavity 2.1 from the installation opening 2.3, and then the cover plate 5 is covered on the installation opening 2.3, thus completing the installation.

[0056] In this embodiment, the cover plate 5 is detachably fixed to the side pipe 2 by at least two fasteners 6 (such as screws), and the two fasteners 6 are respectively placed on both sides of the installation opening 2.3, so as to fix the cover plate 5 more stably.

[0057] Furthermore, in the above solution, the germicidal lamp 3 can be fixed in the storage cavity 2.1 by means of structures such as buckles or screws.

[0058] In this embodiment, the germicidal lamp 3 is preferably fixed to one side of the cover plate 5 facing the storage cavity 2.1. On the one hand, this enables the germicidal lamp 3 to be disassembled and assembled synchronously with the cover plate 5, improving the convenience of subsequent maintenance; on the other hand, it avoids additionally arranging a positioning structure in the narrow space of the storage cavity 2.1.

[0059] Specifically, in this embodiment, the germicidal lamp 3 includes: a mounting post 3.1, a lamp cover 3.2, a lamp tube 3.4, and a power supply structure for supplying power to the lamp tube 3.4.

[0060] Among them, the mounting post 3.1 is fixed to one side of the cover plate 5 facing the storage cavity 2.1 by means of, for example, a screw structure, or the mounting post 3.1 is configured to be integrally formed with the cover plate 5 to fix the germicidal lamp 3 to the cover plate 5. A lamp cover 3.2 made of a transparent material such as an acrylic plate is sleeved on the outer periphery of the mounting post 3.1; and, as shown in the appendix Figure 3 an installation cavity 3.3 that is not connected to the external space is formed at an interval between the lamp cover 3.2 and the end of the mounting post 3.1.

[0061] The lamp tube 3.4 is, for example, an ultraviolet lamp tube that can emit ultraviolet rays, and it is adaptively installed in the installation cavity 3.3. For example, an installation groove can be provided on the mounting post 3.1, and the lamp tube 3.4 can be positioned and embedded in the installation groove. At this time, the power supply structure can be: a battery provided in the mounting post 3.1 and electrically connected to the lamp tube 3.4 to supply power to the lamp tube 3.4; or, a power cord provided in the mounting post 3.1, one end of which is electrically connected to the lamp tube 3.4 and the other end passes through the cover plate 5 and is exposed, and the exposed end of the power cord is connected to an external power supply to supply power to the lamp tube 3.4.

[0062] The lamp cover 3.2 is preferably detachably sleeved on the mounting post 3.1 by means of, for example, a threaded structure to facilitate the maintenance of the lamp tube 3.4.

[0063] At this time, the sealing gasket 7 is sleeved outside the lamp cover 3.2 and can form an elastic seal between the germicidal lamp 3 and the inner wall of the storage cavity 2.1 to prevent the water flow in the storage cavity 2.1 from flowing out through the installation opening 2.3.

[0064] Moreover, during installation, the gasket 7 is first sleeved on the sterilization lamp 3, and then the sterilization lamp 3 and the gasket 7 are inserted into the storage cavity 2.1 together through the installation opening 2.3.

[0065] In order to enable the sterilization lamp 3 with the gasket 7 sleeved thereon to be inserted into the storage cavity 2.1 more easily and smoothly through the installation opening 2.3. As shown in the attached Figure 3 and the attached Figure 4 In this embodiment, the sealing rib 7b is preferably arranged to extend obliquely, so that the side surface of the sealing rib 7b facing the conveying channel 1.1 is an inclined surface for guiding the gasket 7 to be inserted into the storage cavity 2.1.

[0066] Furthermore, as shown in the attached Figure 3 to the attached Figure 4 On the outer periphery of the gasket 7 near one end close to the cover plate 5, there is provided a protruding flange portion 7.1; specifically, on the outer periphery of the gasket body 7a near one end close to the cover plate 5 in this embodiment, there is provided a protruding flange portion 7.1. The flange portion 7.1 is also made of elastic materials such as rubber or silica gel, and is filled in a compressed manner between the cover plate 5 and the side pipe 2. In order to form a sealing structure between the cover plate 5 and the side pipe 2 to prevent the water flow in the storage cavity 2.1 from flowing out through the installation opening 2.3.

[0067] Still further, on the side wall of the installation opening 2.3, there is provided a clamping groove 2.31 opening towards the cover plate 5; the flange portion 7.1 is adaptively filled in the clamping groove 2.31 to improve the installation stability of the flange portion 7.1, so as to form a more stable seal between the cover plate 5 and the side pipe 2.

[0068] Based on the above scheme, considering that in actual production, it is found that when the pipeline assembly is integrally assembled into the gas water heater, or when the pipeline assembly is transported and moved in the gas water heater, it is very easy to be impacted or shocked, resulting in the breakage of the sterilization lamp 3. And the fragments generated after the breakage of the sterilization lamp 3 are easy to fall from the storage cavity 2.1 into the conveying channel 1.1 and flow with the water in the conveying channel 1.1. This not only easily damages the water supply pipeline 1, but also easily causes safety accidents when flowing out with the water, which is very dangerous.

[0069] Based on this, as shown in the attached Figure 2 to the attached Figure 4 In this embodiment, a protective cover 4 is provided in the channel formed by the connection of the storage cavity 2.1 and the conveying channel 1.1, which is located on the side of the sterilization lamp 3 facing the conveying channel 1.1; and a plurality of light passing holes 4.1 are provided on the protective cover 4. The light passing holes 4.1 are holes provided on the protective cover 4 for communicating the storage cavity 2.1 and the conveying channel 1.1. The mesh number of the light passing holes 4.1 provided on the protective cover 4 is generally preferably 30 to 60 meshes.

[0070] That is, the protective cover 4 with the light passing hole 4.1 is formed with a wire mesh cover that prevents the sterilization lamp 3 from falling into the conveying channel 1.1. When the sterilization lamp 3 (as described above, the sterilization lamp 3 is a lamp assembly with an ultraviolet lamp, such as a UV lamp) is broken as described above, the fragments will be blocked by the protective cover 4 in the storage cavity 2.1 to prevent them from falling into the conveying channel 1.1. Moreover, when the sterilization lamp 3 emits ultraviolet rays as described above, the ultraviolet rays can pass through the light passing hole 4.1 to irradiate from the storage cavity 2.1 into the conveying channel 1.1 to sterilize the water flow in the conveying channel 1.1.

[0071] At this time, the caliber of the mounting opening 2.3 is set according to the sizes of the sterilization lamp 3 and the protective cover 4 to form an opening for the sterilization lamp 3 and the protective cover 4 to enter and exit the storage cavity 2.1.

[0072] During assembly, by removing the cover plate 5, the protective cover 4 can be placed into the storage cavity 2.1 from the mounting opening 2.3. By overlapping the overlapping portion 4.3 of the protective cover 4 on the limiting portion 2.2, the protective cover 4 can be installed in place. Subsequently, the sterilization lamp 3 is placed into the storage cavity 2.1 from the mounting opening 2.3, and then the cover plate 5 is covered on the mounting opening 2.3 to complete the installation.

[0073] In order for the sterilization lamp 3 to better sterilize the water flow in the conveying channel 1.1, the protective cover 4 has a transparent light-transmitting portion through which the light emitted by the sterilization lamp 3 can pass and irradiate into the conveying channel 1.1. For example, part or all of the protective cover 4 is made of transparent acrylic board to form a light-transmitting portion, so that when the sterilization lamp 3 emits ultraviolet rays as described above, the ultraviolet rays can directly pass through the light-transmitting portion to irradiate into the conveying channel 1.1 to sterilize the water flow in the conveying channel 1.1. Or, the main body of the protective cover 4 is made of stainless steel, and a part is made of transparent acrylic board, and the transparent part forms a light-transmitting portion.

[0074] Moreover, in order to better accommodate the fragments when the sterilization lamp 3 is broken; as shown in the appendix Figure 3 The protective cover 4 is provided with a debris slot 4.2, and the notch of the debris slot 4.2 is arranged facing the sterilization lamp 3. After the sterilization lamp 3 is broken, more of its fragments can be placed in the debris slot 4.2 instead of flowing around; this facilitates subsequent processing of the fragments.

[0075] For the protective cover 4, it can be arranged in the conveying channel 1.1 and cover the lower end opening of the storage cavity 2.1 in the direction from the conveying channel 1.1 to the storage cavity 2.1. However, in this way, the protective cover 4 is likely to obstruct the water flow in the conveying channel 1.1.

[0076] Therefore, the protective cover 4 in this embodiment is preferably installed in the storage cavity 2.1. Moreover, the outer contour dimensions of the protective cover 4 are preferably adapted to the inner wall contour of the storage cavity 2.1, so that when the protective cover 4 is installed in the storage cavity 2.1 as shown in the appendix Figure 4 , the protective cover 4 can be fitted and installed in the storage cavity 2.1 to better prevent the germicidal lamp 3 from falling into the conveying channel 1.1.

[0077] Furthermore, to enable the protective cover 4 to be placed more stably in the storage cavity 2.1, as shown in the appendix Figure 2 to the appendix Figure 4 , a limiting portion 2.2 is convexly provided on the side wall of the storage cavity 2.1; the protective cover 4 is provided with a lapping portion 4.3, and in the direction from the storage cavity 2.1 to the conveying channel 1.1, the lapping portion 4.3 abuts against the limiting portion 2.2 to prevent the protective cover 4 from shifting into the conveying channel 1.1.

[0078] To improve the limiting effect and the positioning stability of the protective cover 4, the limiting portion 2.2 is preferably an annular protrusion provided around the inner wall of the storage cavity 2.1, and the lapping portion 4.3 is an annular flange structure provided around the outer edge of the protective cover 4 and adapted to lap on the annular limiting portion 2.2.

[0079] Embodiment 2:

[0080] The gas water heater includes the pipeline assembly described in any one of the solutions in Embodiment 1, as well as a heat exchanger housing 8, a burner, a blower, etc.

[0081] The heat exchanger housing 8 has a flue gas flow channel for the high-temperature flue gas generated by the combustion of the burner to flow. A part of the water supply pipeline 1 in the pipeline assembly is wound around the outside of the heat exchanger housing 8, or has a part inserted into the heat exchanger housing 8 and placed in the flue gas flow channel. When high-temperature flue gas flows through the flue gas flow channel, the water in the water supply pipeline 1 can exchange heat with the high-temperature flue gas to be heated.

[0082] The above are only the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Additionally, in the embodiments of the present utility model, the terms "vertical", "horizontal", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product is customarily placed during use. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. It should be further noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling", "fixation", etc. in the description should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0083] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A pipeline assembly, characterized in that: include: A water supply pipeline (1) having a conveying flow channel (1.1) for water to flow; A side pipe (2) is arranged on one side of the water supply pipeline (1) and has a storage cavity (2.1) connected to the delivery channel (1.1), wherein a sterilization lamp (3) is installed in the storage cavity (2.1); A sealing gasket (7) which is filled between the sterilization lamp (3) and the side wall of the storage cavity (2.1); In the direction from the sterilization lamp (3) to the side wall of the storage cavity (2.1), the sealing gasket (7) comprises in sequence: a sealing gasket body (7a), and a sealing rib (7b) protrudingly arranged on the sealing gasket body (7a).

2. The pipeline assembly according to claim 1, characterized in that: The sealing pad body (7a) is an annular member adapted to be mounted on the outer periphery of the sterilization lamp (3); The sealing rib (7b) is an annular protrusion arranged around the sealing gasket body (7a).

3. The pipeline assembly according to claim 1, characterized in that: An installation opening (2.3) is provided at one end of the storage chamber (2.1) away from the delivery channel (1.1), through which the sterilization lamp (3) and the sealing pad (7) are allowed to enter and exit the storage chamber (2.1); The installation opening (2.3) is provided with: a cover plate (5) for sealing the installation opening (2.3); The cover plate (5) is detachably fixed to the side tube (2).

4. The pipeline assembly according to claim 3, characterized in that: The sealing rib (7b) is arranged to extend obliquely, so that the side of the sealing rib (7b) facing the conveying channel (1.1) is an inclined surface for guiding the sealing pad (7) to be inserted into the storage cavity (2.1).

5. The pipeline assembly according to claim 4, characterized in that: The sealing rib (7b) is arranged at an end of the sealing gasket (7) close to the installation opening (2.3).

6. The pipeline assembly according to claim 3, characterized in that: The sterilization lamp (3) is fixedly connected to a side surface of the cover plate (5) facing the storage cavity (2.1).

7. The pipeline assembly according to claim 3, characterized in that: The outer periphery of the sealing gasket (7) close to one end of the cover plate (5) is provided with: a raised flange portion (7.1); The flange portion (7.1) is elastic and is compressed and filled between the cover plate (5) and the side tube (2).

8. The pipeline assembly according to claim 7, characterized in that: The side wall of the installation opening (2.3) is provided with: a mounting groove (2.31) opening toward the cover plate (5); The flange portion (7.1) is adapted to be filled in the clamping groove (2.31).

9. The pipeline assembly according to any one of claims 1 to 8, characterized in that: A protective cover (4) is provided in the channel formed by the connection between the storage cavity (2.1) and the conveying channel (1.1), which is located on the side of the sterilization lamp (3) facing the conveying channel (1.1) and has a plurality of light holes (4.1) to form a mesh cover structure that prevents the sterilization lamp (3) from falling into the conveying channel (1.1).

10. The pipeline assembly according to claim 9, characterized in that: The protective cover (4) is provided with a retaining slot (4.2), and the notch of the retaining slot (4.2) is arranged toward the sterilization lamp (3).

11. Gas water heater, characterized in that: The invention comprises a pipeline assembly as described in any one of claims 1 to 10.

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