Vacuum sandwich pressure-bearing heat storage water tank

Abstract

The utility model discloses a vacuum interlayer pressure-bearing heat storage water jar belongs to vacuum heat insulation technical field, including jar body, the inner chamber lateral wall of jar body is connected with the water inlet, and the inner chamber lateral wall of jar body is close to its top and is connected with the drain, and the inner chamber of water inlet is connected with the filter shell of screw thread, and the inside fixed connection of filter shell has the filter core, and the inside fixed connection of filter core has a plurality of scale -inhibiting ball, and the inside fixed connection of scale -inhibiting ball has scale -inhibiting block, and it realizes the source intervention of calcium magnesium ion in cold water through the cooperation of filter shell, filter core, pinhole, scale -inhibiting block and scale -inhibiting ball, and under the synergies of scale -inhibiting block and filter core, under the water flow scouring, continuously release chelating component, effectively change the crystallization form of scale -forming ion, inhibit the formation of calcium carbonate, calcium sulfate and other hard scale on the surface of heat exchange coil, through the cooperation of inner layer, vacuum interlayer, inner bag protective sleeve, heat -insulating pad and protection layer, the heat loss is reduced greatly, the heat loss is reduced effectively, realizes hot water long time high -efficient heat preservation.

Description

Technical Field

[0001] This utility model relates to the field of vacuum insulation technology, and more specifically, to a vacuum-jacketed pressurized hot water storage tank. Background Technology

[0002] Vacuum-jacketed pressurized hot water storage tanks are pressurized hot water storage devices that adopt a double-shell structure and a vacuum-sealed interlayer. Their core advantage lies in the fact that the vacuum interlayer can significantly reduce heat loss caused by heat conduction and heat radiation, while also possessing good heat preservation and pressure resistance. This ensures safe and stable heat storage and long-lasting thermal efficiency, and they are widely used in scenarios such as domestic central hot water systems and commercial hot water supply to meet the needs of hot water storage and use at different scales.

[0003] When using existing vacuum-jacketed pressurized hot water storage tanks, first connect the cold water inlet pipe to the inlet on the side of the tank, and connect the hot water outlet pipe to the outlet. When filling with water, open the vent valve and slowly introduce cold water. While the water is indirectly heated by the external heat source through the heat exchange coil, air is discharged from the vent valve. After continuously flowing out water without bubbles, close the vent valve, then start the heating system and set the target water temperature. During operation, monitor whether the pressure and water temperature in the hot water tank are within the rated range. After the water temperature drops to a safe range, the inlet valve can be closed. If necessary, drain the water in the tank through the drain valve.

[0004] In practical use, existing technologies suffer from the problem that calcium and magnesium ions in cold water will form scale such as calcium carbonate and calcium sulfate on the surface of heat exchange coils after long-term use, which reduces heat exchange efficiency and increases energy consumption. Therefore, a vacuum-jacketed pressurized hot water storage tank is proposed. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a vacuum-jacketed pressurized hot water storage tank. Through the cooperation of filter shell, filter element, micropores, scale inhibitor block and scale inhibitor ball, it achieves source intervention of calcium and magnesium ions in cold water. Under the synergistic effect of scale inhibitor block and filter element, chelating components are continuously released under the flushing of water flow, effectively changing the crystal morphology of scale inhibitor ions and inhibiting the formation of hard scale such as calcium carbonate and calcium sulfate on the surface of heat exchange coil.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A vacuum-jacketed pressurized hot water storage tank includes a tank body, an inlet connected to the inner side wall of the tank body, a drain connected to the inner side wall of the tank body near its top, a filter shell threadedly connected to the inner cavity of the inlet, a filter element fixedly connected inside the filter shell, a plurality of scale-inhibiting balls fixedly connected inside the filter element, and scale-inhibiting blocks fixedly connected inside the scale-inhibiting balls.

[0010] Furthermore, the bottom of the tank is fixedly connected to multiple support legs, and one end of each support leg is fixedly connected to a friction pad.

[0011] Furthermore, the top of the inner cavity of the tank is connected to an exhaust valve, and a hydrophobic and breathable membrane is fixedly connected inside the exhaust valve.

[0012] Furthermore, the inner cavity of the tank is connected to an inner layer and a vacuum jacket from the inside out, and a heat exchange coil is fixedly connected to the bottom of the inner cavity of the tank.

[0013] Furthermore, the inner cavity of the water inlet is fixedly connected with an abutment sleeve, the outer surface of the abutment sleeve abuts against one end of the filter shell, the filter element is made of porous sintered particles, the scale inhibitor block is made of citric acid ester material, and the outer surface of the scale inhibitor ball has multiple micropores.

[0014] Furthermore, an inner liner protective sleeve is fixedly connected to the outer surface of the inner layer, a heat insulation pad is fixedly connected to the outer surface of the tank, and a protective layer is fixedly connected to the outer surface of the heat insulation pad. The inner liner protective sleeve is made of vacuum-plated aluminum material, the heat insulation pad is made of heat insulation material, and the protective layer is made of heat insulation material.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This solution achieves source intervention of calcium and magnesium ions in cold water through the cooperation of filter shell, filter element, micropores, scale inhibitor block and scale inhibitor ball. Under the synergistic effect of scale inhibitor block and filter element, chelating components are continuously released under water flow, effectively changing the crystal form of scale ions, inhibiting the formation of hard scale such as calcium carbonate and calcium sulfate on the surface of heat exchange coil, avoiding the problem of reduced heat exchange efficiency and increased energy consumption caused by scaling. At the same time, the filter shell adopts a threaded detachable structure, which can be easily unscrewed for cleaning or replaced as a whole after a period of use, ensuring long-term stable and effective scale inhibition function.

[0018] (2) Through the cooperation of the inner layer, vacuum jacket, inner tank protective sleeve, heat insulation pad and protective layer, heat loss is greatly reduced, heat dissipation is effectively reduced, and hot water is kept in a long-term and efficient manner. Through the coordinated work of electric heating rod and heat exchange coil, auxiliary heating is automatically activated when the main heat source is insufficient, and the intelligent controller realizes precise temperature control and multiple safety protections. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial structural cross-sectional view of the present invention.

[0021] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0022] Figure 4 This is a partial view of the scale inhibitor ball of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Tank body; 2. Support legs; 3. Water inlet; 4. Drain outlet; 5. Air vent valve; 6. Heat exchange coil; 7. Inner layer; 8. Vacuum jacket; 9. Filter shell; 10. Filter element; 11. Abutment sleeve; 12. Scale inhibitor ball; 13. Scale inhibitor block; 14. Micropores; 15. Inner tank protective sleeve; 16. Heat insulation pad; 17. Protective layer; 18. Hydrophobic and breathable membrane. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example 1:

[0029] Please see Figure 1 - Figure 4 A vacuum-jacketed pressurized hot water storage tank includes a tank body 1. The inner cavity side wall of the tank body 1 is connected to a water inlet 3, and the inner cavity side wall of the tank body 1 is connected to a drain outlet 4 near its top. The water inlet 3 is used to introduce water, and the drain outlet 4 is the hot water outlet to achieve pressurized constant flow water supply. The inner cavity of the water inlet 3 is threadedly connected to a filter shell 9. The filter shell 9 is fixedly connected to a filter element 10. The filter element 10 is fixedly connected to a plurality of scale-inhibiting balls 12. The scale-inhibiting balls 12 are fixedly connected to scale-inhibiting blocks 13.

[0030] Specifically, the bottom of the tank 1 is fixedly connected to multiple support legs 2, and one end of each support leg 2 is fixedly connected to a friction pad. The top of the inner cavity of the tank 1 is connected to an exhaust valve 5. The inside of the exhaust valve 5 is fixedly connected to a hydrophobic and breathable membrane 18. The hydrophobic and breathable membrane 18 allows air and water vapor to pass through but completely blocks liquid water, achieving automatic exhaust without leakage. The inner cavity of the inlet 3 is fixedly connected to an abutment sleeve 11. The outer surface of the abutment sleeve 11 abuts against one end of the filter shell 9. The filter element 10 is made of porous sintered particles. The scale inhibitor block 13 is made of citric acid ester material. The outer surface of the scale inhibitor ball 12 has multiple micropores 14, which can slowly release chelated ions under the flushing of water flow, change the crystal morphology of calcium and magnesium ions, and prevent hard scale from depositing on the surface of the heat exchange coil 6.

[0031] The inner cavity of tank 1 is connected from the inside out by an inner layer 7 and a vacuum jacket 8. The inner layer 7 is made of food-grade stainless steel and can hold hot water or serve as a flow space for heat exchange medium. The vacuum jacket 8 is evacuated to a high vacuum state and filled with multiple layers of insulation material to maintain the distance between the inner liner and the outer shell and reduce thermal bridges. A heat exchange coil 6 is fixedly connected to the bottom of the inner cavity of tank 1. The heat exchange coil 6 is made of seamless copper or stainless steel tube and is used to introduce an external heat medium, such as solar thermal fluid or heat pump circulating fluid, to indirectly heat the cold water in tank 1. The outer surface of the inner layer 7... An inner protective sleeve 15 is fixedly connected. Through the inner protective sleeve 15, a high-purity aluminum film can be deposited on the outer wall of the inner liner under a high vacuum environment, and a silicon dioxide protective layer is covered to form a low emissivity surface, which effectively suppresses heat radiation loss. A heat insulation pad 16 is fixedly connected to the outer surface of the tank body 1, and a protective layer 17 is fixedly connected to the outer surface of the heat insulation pad 16. The inner protective sleeve 15 is made of vacuum-plated aluminum material, the heat insulation pad 16 is made of heat insulation material, and the protective layer 17 is made of heat insulation material, which further improves the heat insulation performance of the tank body 1 and prevents condensation on the outer surface of the tank body 1.

[0032] A controller is installed on the outer surface of tank 1, which connects to an external power socket via a power cord to power the electric heating rods inside tank 1. The electric heating rods are sealed and installed through an electric heating flange interface on the side wall of tank 1, and are automatically controlled to start and stop by the controller or an external thermostat according to the set water temperature, achieving intelligent heating and overheat protection. At the same time, heat exchange coil 6 is connected to an external heat medium circulation system such as solar energy or air source heat pump to indirectly heat the cold water inside tank 1. The electric heating rods serve as an auxiliary heat source, automatically activating when the heat exchange coil 6 provides insufficient heating or during cloudy or rainy weather. The two systems complement each other to ensure a stable supply of hot water.

[0033] Furthermore, cold water enters the inner cavity of tank 1 after being connected to the inlet 3 through an external water supply pipe. During the flow process, it first passes through the filter shell 9, and the water flows through the filter element 10 and the multiple scale-inhibiting balls 12 embedded therein. The micropores 14 on the outer surface of the scale-inhibiting balls 12 allow the water to contact the scale-inhibiting blocks 13 inside. Through the cooperation of the filter element 10 and the scale-inhibiting blocks 13, chelating components can be slowly released to inhibit the formation of hard scale by calcium and magnesium ions. Subsequently, the cold water flows around the heat exchange coil 6 at the bottom of tank 1. The heat exchange coil 6 is supplied with heat medium from the solar collector or air source heat pump to indirectly heat the cold water. The heated hot water rises naturally due to the decrease in density and gathers at the top of tank 1.

[0034] Working principle: During use, cold water enters the inner cavity of tank 1 through an external water supply pipe connected to inlet 3. During the flow, the water first passes through the filter shell 9 threaded into inlet 3. The water flows through the filter element 10 and multiple scale-inhibiting balls 12 embedded therein. The micropores 14 on the outer surface of the scale-inhibiting balls 12 allow the water to contact the scale-inhibiting blocks 13 inside. Through the cooperation of the filter element 10 and the scale-inhibiting blocks 13, chelating components can be slowly released to inhibit the formation of hard scale by calcium and magnesium ions. Subsequently, the cold water flows around the heat exchange coil 6 at the bottom of tank 1. The heat exchange coil 6 is filled with heat medium from a solar collector or air source heat pump to indirectly heat the cold water. The heated hot water rises naturally due to the decrease in density and gathers at the top of tank 1. In the initial stage of water filling, the air in the tank is discharged through the exhaust valve 5 at the top. The hydrophobic and breathable membrane 18 inside allows air and water vapor to escape freely, but completely blocks liquid water, achieving automatic venting and no leakage.

[0035] The heated hot water is output through the drain port 4 located on the side wall of the tank 1 near the top, and connected to the hot water pipe network at the user end. It relies on the municipal water supply pressure to achieve pressurized constant flow water supply. When the heat exchange coil 6 is insufficient, the electric heating rod at the electric heating flange interface is automatically started under the control of the controller to supplement the heating as an auxiliary heat source to ensure that the water temperature reaches the set value. The controller intelligently controls the start and stop according to the temperature feedback and has overheat, dry burning and grounding protection functions. The heat insulation pad 16 and the protective layer 17 can effectively reduce heat loss and maintain long-term heat preservation performance. After a period of use, the filter shell 9 can be unscrewed from the inlet 3 for replacement or cleaning, and then screwed back in to install it so that one end is tightly abutted against the abutment sleeve 11 to restore the sealing and filtration functions.

[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A vacuum-jacketed pressurized hot water storage tank, comprising a tank body (1), characterized in that: The inner cavity sidewall of the tank (1) is connected to a water inlet (3), and the inner cavity sidewall of the tank (1) is connected to a drain outlet (4) near its top. The inner cavity of the water inlet (3) is threadedly connected to a filter shell (9). The filter shell (9) is fixedly connected to a filter element (10). The filter element (10) is fixedly connected to a plurality of scale-inhibiting balls (12). The scale-inhibiting balls (12) are fixedly connected to a scale-inhibiting block (13).

2. The vacuum-jacketed pressurized hot water storage tank according to claim 1, characterized in that: The bottom of the tank (1) is fixedly connected to a plurality of support legs (2), and a friction pad is fixedly connected to one end of each support leg (2).

3. The vacuum-jacketed pressurized hot water storage tank according to claim 1, characterized in that: The top of the inner cavity of the tank (1) is connected to an exhaust valve (5), and a hydrophobic and breathable membrane (18) is fixedly connected inside the exhaust valve (5).

4. A vacuum-jacketed pressurized hot water storage tank according to claim 1, characterized in that: The inner cavity of the tank (1) is connected to an inner layer (7) and a vacuum jacket (8) from the inside out, and a heat exchange coil (6) is fixedly connected to the bottom of the inner cavity of the tank (1).

5. A vacuum-jacketed pressurized hot water storage tank according to claim 1, characterized in that: The inner cavity of the inlet (3) is fixedly connected to an abutment sleeve (11), the outer surface of the abutment sleeve (11) abuts against one end of the filter shell (9), the filter element (10) is made of porous sintered particles, the scale inhibitor block (13) is made of citric acid ester material, and the outer surface of the scale inhibitor ball (12) is provided with multiple micropores (14).

6. A vacuum-jacketed pressurized hot water storage tank according to claim 4, characterized in that: The outer surface of the inner layer (7) is fixedly connected to an inner liner protective sleeve (15), the outer surface of the tank body (1) is fixedly connected to a heat insulation pad (16), the outer surface of the heat insulation pad (16) is fixedly connected to a protective layer (17), the inner liner protective sleeve (15) is made of vacuum-plated aluminum material, the heat insulation pad (16) is made of heat insulation material, and the protective layer (17) is made of heat insulation material.

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