Heat storage enamel water tank

Abstract

The utility model relates to a heat storage enamel water tank which comprises a tank body, an inner container is arranged in the middle of the tank body, the top of the inner container is an upper sealing head, the bottom of the inner container is a lower sealing head, and a water inlet pipe opening, a water outlet pipe opening, a heating straight pipe and a heating coil pipe penetrate through a top cover and the upper sealing head. The water inlet pipe opening, the water outlet pipe opening, the heating straight pipe, the heating coil and the upper sealing head are spliced and welded and then pre-enameled to form an upper sealing head assembly, and the lower sealing head is independently pre-enameled. According to the heat storage enamel water tank, the water pipe, the heating pipe and the upper sealing head are welded and are subjected to one-time enamel in advance, and the heating coil pipe and the sealing head do not need to be subjected to enamel separation, so that the enamel part can be prevented from being damaged during welding after enamel is completed, the enamel quality is prevented from being influenced, and the use effect of the inner container is finally influenced. In addition, the heating coil can sink to the bottom of the inner container as much as possible, water at the bottom can be fully heated, the heat exchange effect is improved, and the capacity of the heat storage water tank can be fully utilized.

Description

Technical Field

[0001] This utility model relates to a heat storage enamel water tank. Background Technology

[0002] Enameled water tanks are an important component of gas water heaters. Gas water heaters are gas appliances that use gas as fuel and heat water by transferring heat to cold water flowing through a heat exchanger to produce hot water.

[0003] The inner liner and components of an enamel-lined water tank require surface enamel coating to prevent corrosion. However, after enamel coating, the components still need to be welded before being installed in the liner. Historically, this often damaged the enamel at the weld points, leading to corrosion. Furthermore, the heating coils in older models were fixed to the side wall of the liner, creating a distance from the lower end cap. This meant the water at the bottom of the liner couldn't be heated; the heated water would rise, leaving the cooler water at the bottom. Consequently, the water in the liner couldn't reach the required temperature after heat exchange, affecting the overall heat exchange efficiency. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a heat storage enamel water tank that ensures the quality of the enamel is not affected and improves the heat exchange effect of the water tank.

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

[0006] A thermal enamel-lined water tank includes a tank body with an inner liner in the middle. The top of the inner liner is an upper end cap, and the bottom is a lower end cap. The bottom surfaces of both the upper and lower end caps are curved surfaces that bulge downwards, allowing the upper and lower end caps to be installed in reverse. The top of the tank body is a top cover. An inlet pipe, an outlet pipe, a heating straight pipe, and a heating coil pass through the top cover and the upper end cap. The inlet pipe is connected to an inlet pipe in the inner liner and extends to near the lower end cap. The heating coil consists of two straight pipe sections and a spiral section. The tops of the two straight pipe sections pass through the top cover, and the bottoms of the two straight pipe sections are connected to the two ends of the spiral section. The spiral section is close to the bottom of the lower end cap. The inlet pipe, outlet pipe, heating straight pipe, heating coil, and upper end cap are first assembled and welded together and then pre-enamel-lined to form the upper end cap assembly. The lower end cap is pre-enamel-lined separately.

[0007] The two straight pipe sections are fixed to the heating straight pipe with reinforcing plates, and the two sides of the spiral section are also fixed with reinforcing plates from top to bottom.

[0008] A pressure valve and a temperature probe are also installed on the outside of the inner liner. The pressure valve and the temperature probe pass through the side wall of the box and extend out.

[0009] The present invention provides a heat storage enamel water tank with the following advantages:

[0010] This type of thermal storage enameled water tank welds the water pipes, heating pipes, and upper end caps together and pre-enamelts them all at once. This eliminates the need to separately enamel the heating coils and end caps, preventing damage to the enamel during welding after enamel preparation, which would affect the enamel quality and ultimately the performance of the inner tank. Furthermore, the heating coils can be positioned as low as possible to the bottom of the inner tank, ensuring thorough heating of the water at the bottom as well, improving heat exchange efficiency and maximizing the utilization of the water storage tank's capacity. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of a heat storage enamel water tank according to the present invention.

[0012] Figure 2 This is a perspective view of a heat storage enamel water tank according to the present invention.

[0013] Figure 3 This is a front view of a thermal enamel water tank according to the present invention.

[0014] Figure 4 This is a top view of a heat storage enamel water tank according to the present invention.

[0015] In the diagram: 1. Box body; 2. Inner liner; 3. Upper end cap; 4. Lower end cap; 5. Curved surface; 6. Top cover; 7. Water inlet; 8. Water outlet; 9. Heating straight pipe; 10. Heating coil; 10. Straight pipe section; 10.1. Coiled section; 10.2. Water inlet pipe; 11. Reinforcing plate; 12. Pressure valve; 13. Temperature probe; 14. Detailed Implementation

[0016] See Figures 1 to 4 This utility model relates to a heat storage enamel water tank, including a tank body 1, with an inner liner 2 in the middle of the tank body 1. The inner liner 2 is used to store and heat water. The top of the inner liner 2 is an upper end cap 3, and the bottom is a lower end cap 4. The bottom surfaces of the upper end cap 3 and the lower end cap 4 are both curved surfaces 5, which bulge downwards, so that the upper end cap 3 and the lower end cap 4 are installed in reverse.

[0017] The top of the box 1 is a top cover 6. The water inlet 7, the water outlet 8, the heating straight pipe 9, and the heating coil 10 pass through the top cover 6 and the upper end cap 3. The water inlet 7 is connected to the water inlet 11 in the inner liner 2. The water inlet 11 extends to near the lower end cap 4.

[0018] The heating coil 10 consists of two straight pipe sections 10.1 and one spiral section 10.2. The tops of the two straight pipe sections 10.1 pass through the top cover 6, and the bottoms of the two straight pipe sections 10.1 are connected to the two ends of the spiral section 10.2. The two straight pipe sections 10.1 are fixed to the heating straight pipe 9 with reinforcing plates 12. The two sides of the spiral section 10.2 are also fixed with reinforcing plates 12 from top to bottom, thereby improving the strength of the entire heating coil 10. The spiral section 10.2 is close to the bottom of the lower end cap 9, so that the heating coil can sink as far as possible to the bottom of the inner tank, allowing the water at the bottom to be fully heated, improving the heat exchange effect, and making fuller use of the capacity of the hot water storage tank.

[0019] Among them, the water inlet 7, water outlet 8, heating straight pipe 9, heating coil 10 and upper end cap 3 are first assembled and welded and then pre-enameled to form the upper end cap assembly. The lower end cap 4 is pre-enameled separately. The upper end cap assembly is assembled with the inner liner 2 in a reverse snap-fit ​​manner. The upper end cap assembly and the heating coil assembly can be enameled at one time, avoiding the separate enameling of the heating coil and end cap in the conventional structure. This improves the enameling quality and assembly effect of the heating coil and end cap, and avoids the situation where welding affects the enameling quality.

[0020] In addition, a pressure valve 13 and a temperature probe 14 are provided on the outside of the inner liner 2. The pressure valve 13 and the temperature probe 14 pass through the side wall of the box 1 and extend out.

Claims

1. A thermal enamel water tank, characterized in that: The device includes a housing with an inner liner in the middle. The top of the inner liner is an upper end cap, and the bottom is a lower end cap. The bottom surfaces of both the upper and lower end caps are curved and protrude downwards, allowing them to be installed in reverse. The top of the housing is a top cover. A water inlet, a water outlet, a heating straight pipe, and a heating coil pass through the top cover and the upper end cap. The water inlet is connected to a water inlet pipe in the inner liner, extending close to the lower end cap. The heating coil consists of two straight pipe sections and a spiral section. The tops of the two straight pipe sections pass through the top cover, and the bottoms of the two straight pipe sections are connected to the two ends of the spiral section. The spiral section is close to the bottom of the lower end cap. The water inlet, water outlet, heating straight pipe, heating coil, and upper end cap are first assembled and welded together and then pre-enameled to form the upper end cap assembly. The lower end cap is pre-enameled separately.

2. The thermal enamel water tank according to claim 1, characterized in that: The two straight pipe sections are fixed to the heating straight pipe with reinforcing plates, and the two sides of the spiral section are also fixed with reinforcing plates from top to bottom.

3. The thermal enamel water tank according to claim 1, characterized in that: A pressure valve and a temperature probe are also installed on the outside of the inner liner. The pressure valve and the temperature probe pass through the side wall of the box and extend out.

Images