Water heater enamel storage tank with joint sealing structure

Abstract

The utility model relates to a water heater enamel storage tank with a joint sealing structure, which comprises a barrel body, a plurality of heat exchange tubes are arranged in the barrel body from top to bottom, the heat exchange tubes penetrate through barrel body through holes arranged on the wall of the barrel body, and the barrel body is provided with a sealing structure at the barrel body through holes. According to the water heater enamel storage tank with the connector sealing structure, the sealing structure is arranged at the position of the through hole of the cylinder body, the sealing structure is composed of the metal connector, the follow-up rotation preventing fixing plate, the baffle ring, the locking connector, the sealing ring and the sealing gasket, the through hole of the cylinder body is effectively sealed through cooperation of the multiple structures, and leakage is avoided.

Description

Technical Field

[0001] The utility model relates to an enamel storage tank for a water heater with a joint sealing structure, belonging to the technical field of water heaters. Background Art

[0002] A gas water heater 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, which is a gas appliance.

[0003] The inside of the water heater storage tank needs to use heat exchange tubes to heat the water in the tank. Therefore, the heat exchange tubes need to pass through the tank. The tank needs to be provided with multiple holes from top to bottom on the outer wall for the heat exchange tubes to pass through and be connected to the external water pipes. After opening the holes, the heat exchange tubes need to be welded to the outer wall of the tank to ensure the sealing of the tank. However, it is impossible to ensure perfect welding at all positions during manual welding, so there is a risk of leakage. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the above deficiencies and provide an enamel storage tank for a water heater with a joint sealing structure that can be effectively sealed and avoid leakage.

[0005] The purpose of the utility model is achieved as follows:

[0006] An enamel storage tank for a water heater with a joint sealing structure includes a cylinder body. Multiple heat exchange tubes are installed in the cylinder body from top to bottom. The heat exchange tubes pass through cylinder body through holes opened on the cylinder body wall. The cylinder body is provided with a sealing structure at the cylinder body through holes. The sealing structure includes a T-shaped metal joint. The horizontal section of the metal joint extends out of the cylinder body through hole, and the vertical section of the metal joint is blocked by the cylinder body through hole. A anti-rotation fixing plate is arranged between the heat exchange tube and the metal joint. It is fixed to the end of the heat exchange tube by screws. After the end of the heat exchange tube penetrates into the anti-rotation fixing plate, it is connected to the metal joint and connected to the external pipeline. The end of the anti-rotation fixing plate contacts the vertical section of the metal joint. A retaining ring is welded at the position of the cylinder body through hole. A locking joint is arranged between the metal joint and the retaining ring. A sealing ring is arranged between the vertical section of the metal joint and the inner wall of the cylinder body. A gasket is arranged between the retaining ring and the locking joint.

[0007] The top of the cylinder body is provided with a top cover that can be opened.

[0008] Both the retaining ring and the cylinder body are carbon steel parts.

[0009] The anti-rotation fixing plate is T-shaped.

[0010] The enamel storage tank for a water heater with a joint sealing structure of the utility model has the following advantages:

[0011] This enamel storage tank for water heater with a joint sealing structure effectively seals the through-hole of the cylinder body by setting a sealing structure at the through-hole of the cylinder body. The sealing structure consists of a metal joint, an anti-rotation fixing plate, a retaining ring, a locking joint, a sealing ring, and a gasket, avoiding leakage through the cooperation of multiple structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the enamel storage tank for water heater with a joint sealing structure of the present utility model.

[0013] Figure 2 For Figure 1 the pipeline layout diagram inside the storage tank in

[0014] Figure 3 For Figure 1 the enlarged view at the sealing structure in

[0015] In the figure: cylinder body 1, top cover 2, heat exchange tube 3, through-hole of cylinder body 4, sealing structure 5, metal joint 6, anti-rotation fixing plate 7, retaining ring 8, locking joint 9, sealing ring 10, gasket 11. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Referring to Figures 1 to 3 , the present utility model relates to an enamel storage tank for water heater with a joint sealing structure, including a cylinder body 1. A top cover 2 that can be opened is provided at the top of the cylinder body 1. A plurality of heat exchange tubes 3 are installed inside the cylinder body 1 from top to bottom. The heat exchange tubes 3 pass through the through-hole of cylinder body 4 opened on the cylinder wall. A sealing structure 5 is provided at the through-hole of cylinder body 4 of the cylinder body 1.

[0017] The sealing structure 5 includes a T-shaped metal joint 6. The horizontal section of the metal joint 6 extends out of the through-hole of cylinder body 4, and the vertical section of the metal joint 6 is blocked by the through-hole of cylinder body 4. An anti-rotation fixing plate 7 is provided between the heat exchange tube 3 and the metal joint 6. The anti-rotation fixing plate 7 is also T-shaped and is fixed to the end of the heat exchange tube 3 by screws. After the end of the heat exchange tube 3 passes through the anti-rotation fixing plate 7, it is connected to the metal joint 6 and is connected to the external pipeline, and the end of the anti-rotation fixing plate 7 contacts the vertical section of the metal joint 6.

[0018] A retaining ring 8 is welded at the through-hole of cylinder body 4. Both the retaining ring 8 and the cylinder body 1 are carbon steel parts. A locking joint 9 is provided between the metal joint 6 and the retaining ring 8 to fix the metal joint 6 and the retaining ring 8 tightly.

[0019] A sealing ring 10 is provided between the vertical section of the metal joint 6 and the inner wall of the cylinder body 1, and a gasket 11 is provided between the retaining ring 8 and the locking joint 9.

Claims

1. Enamel water heater tank with joint sealing structure, characterized by: The utility model comprises a cylinder body, wherein a plurality of heat exchange tubes are installed inside the cylinder body from top to bottom, and the heat exchange tubes pass through a cylinder through hole opened on the cylinder wall, and a sealing structure is arranged at the cylinder through hole, and the sealing structure comprises a T-shaped metal joint, the horizontal section of the metal joint extends out of the cylinder through hole, and the vertical section of the metal joint is blocked by the cylinder through hole, and an anti-rotation fixing plate is arranged between the heat exchange tube and the metal joint, and the anti-rotation fixing plate is fixed to the end of the heat exchange tube by screws, and the end of the heat exchange tube is connected with the metal joint after passing through the anti-rotation fixing plate, and is connected with the external pipeline, and the end of the anti-rotation fixing plate contacts with the vertical section of the metal joint, and a retaining ring is welded at the cylinder through hole, a locking joint is arranged between the metal joint and the retaining ring, a sealing ring is arranged between the vertical section of the metal joint and the inner wall of the cylinder, and a sealing gasket is arranged between the retaining ring and the locking joint.

2. The water heater enamel storage tank with a joint sealing structure according to claim 1, characterized in that: The top of the cylinder is provided with an openable top cover.

3. The water heater enamel storage tank with a joint sealing structure according to claim 1, characterized in that: The retaining ring and the cylinder are both carbon steel parts.

4. The water heater enamel storage tank with a joint sealing structure according to claim 1, characterized in that: The anti-heel rotation fixing plate is T-shaped.

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