Vertical steel-plastic composite storage tank

Abstract

According to the vertical steel-plastic composite storage tank, a heating pipe is connected through a connecting hole formed in the top end of a body so as to ensure that the heating pipe can be fixedly connected to an inner cavity of the body, the value is improved, the body is made of an acid-resistant organic material, and the heating pipe and the body are fixedly connected and integrally formed when the body is subjected to hot melting forming. Therefore, the air tightness of the steel-plastic composite storage tank is ensured. In order to ensure that the deposited calcium and magnesium deposits can be removed, the water inlet pipe is provided with a first branch pipe and a second branch pipe, the second branch pipe is connected with a liquid injection valve, and when a container of the acid solution is connected to the liquid injection valve, a tap water pipe in the first branch pipe flows, the acid solution is mixed with tap water and injected into the inner cavity of the body to achieve dissolution work of the calcium and magnesium deposits; the cleaning of the inner cavity of the body can be realized by opening the ball valve to discharge turbid liquid dissolved with calcium and magnesium ions. The defect that the air tightness of the steel-plastic composite storage tank is low due to the fact that an opening is formed in order to remove calcium and magnesium deposits is effectively overcome.

Description

Technical Field

[0001] The present application relates to the technical field of water heaters, and in particular to a vertical steel-plastic composite storage tank. Background Art

[0002] Water heaters are common devices in daily homes. The basic principle of water heaters is to heat the stored water with electric heating wires after storing water. The water stored in water heaters mostly comes from the tap water network. These tap waters have more calcium and magnesium ions after being processed. The solubility of calcium and magnesium ions in cold water is higher than that in hot water. This causes the steel-plastic composite storage tank of the water heater to accumulate calcium and magnesium deposits. Such calcium and magnesium deposits will increase the risk of pipe blockage and affect the heating efficiency of the electric heating wire. Traditional steel-plastic composite storage tanks are provided with openings to allow maintenance personnel to clean calcium and magnesium deposits. However, the openings will affect the air tightness of the steel-plastic composite storage tanks and increase safety risks. For this reason, it is necessary to propose a vertical steel-plastic composite storage tank to address the low air tightness defect of traditional steel-plastic composite storage tanks. Utility Model Content

[0003] Based on this, it is necessary to propose a vertical steel-plastic composite storage tank to address the low airtightness defect of traditional steel-plastic composite storage tanks.

[0004] The present application provides a vertical steel-plastic composite storage tank, comprising:

[0005] The body is provided with a pressure relief hole, a connection hole, a water inlet hole, a water outlet hole and a sewage discharge hole, wherein the connection hole is provided at the top of the body, and the water outlet hole is externally connected to a hot water pipeline;

[0006] A heating tube is arranged in the inner cavity of the body, the heating tube is fixedly connected to the body through the connecting hole, and a heating wire is arranged in the heating tube;

[0007] A water inlet pipe, threadedly connected to the water inlet hole, the water inlet pipe comprises a first branch pipe and a second branch pipe, the first branch pipe is externally connected to a tap water pipe;

[0008] A ball valve, threadedly connected to the drain hole;

[0009] A check valve, threadedly connected to the pressure relief hole;

[0010] The liquid injection valve is communicated with the second branch pipe, and the liquid injection valve is fixedly connected to the second branch pipe.

[0011] The present application relates to a vertical steel-plastic composite storage tank, which is connected to a heating pipe through a connection hole arranged at the top of the body to ensure that the heating pipe can be fixedly connected to the inner cavity of the body. It is worth mentioning that the material of the body is an acid-resistant organic material, and the heating pipe is fixedly connected to the body and integrally formed when the body is hot-melt-formed. This ensures the airtightness of the steel-plastic composite storage tank. In order to ensure that the deposited calcium and magnesium deposits can be removed, the water inlet pipe is provided with a first branch pipe and a second branch pipe, and the second branch pipe is connected to a liquid injection valve. When the container of the acidic solution is connected to the liquid injection valve, the tap water pipe in the first branch pipe flows, and the acidic solution is mixed with the tap water and injected into the inner cavity of the body to dissolve the calcium and magnesium deposits. Then, the ball valve is opened to remove the turbid liquid dissolved with calcium and magnesium ions to achieve the cleaning of the inner cavity of the body. This effectively solves the defect of low airtightness of the steel-plastic composite storage tank caused by opening an opening to remove calcium and magnesium deposits. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0013] Figure 1 A schematic structural diagram of a vertical steel-plastic composite storage tank provided in one embodiment of the present application.

[0014] Figure 2 A schematic structural diagram of a heating pipe for a vertical steel-plastic composite storage tank provided in one embodiment of the present application.

[0015] Figure 3 A schematic structural diagram of a heating pipe for a vertical steel-plastic composite storage tank provided in yet another embodiment of the present application.

[0016] Figure 4 A schematic structural diagram of a non-metallic heat-conducting layer of a heating tube of a vertical steel-plastic composite storage tank provided in one embodiment of the present application.

[0017] Figure 5 A schematic structural diagram of a leak check valve for a vertical steel-plastic composite storage tank provided in one embodiment of the present application.

[0018] Figure 6 A schematic structural diagram of a liquid filling valve for a vertical steel-plastic composite storage tank provided in one embodiment of the present application.

[0019] Figure 7 A schematic structural diagram of an outer steel body of a vertical steel-plastic composite storage tank provided in one embodiment of the present application.

[0020] Reference numerals:

[0021] 100-main body; 110-pressure relief hole; 120-connection hole; 130-water inlet hole; 140-water outlet hole;

[0022] 150-drain hole; 200-heating pipe; 210-support pipe; 220-heating vertical pipe; 230-connecting pipe;

[0023] 240-connection plate; 300-water inlet pipe; 310-first branch pipe; 320-second branch pipe; 400-ball valve;

[0024] 500-leakage check valve; 510-housing; 511-first split body; 512-second split body; 520-return spring;

[0025] 530-steel ball; 600-liquid injection valve; 610-valve body; 620-through hole ball center; 700-outer steel body. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] The present application provides a vertical steel-plastic composite storage tank.

[0028] like Figure 1 As shown, in one embodiment of the present application, a vertical steel-plastic composite storage tank includes a body 100, a heating pipe 200, a water inlet pipe 300, a ball valve 400, a check valve 500 and a liquid injection valve 600.

[0029] The body 100 is provided with a pressure relief hole 110 , a connection hole 120 , a water inlet hole 130 , a water outlet hole 140 and a sewage discharge hole 150 . The connection hole 120 is provided at the top of the body 100 , and the water outlet hole 140 is externally connected to a hot water pipeline.

[0030] The heating tube 200 is disposed in the inner cavity of the main body 100 . The heating tube 200 is fixedly connected to the main body 100 via the connecting hole 120 . A heating wire is disposed inside the heating tube 200 .

[0031] The water inlet pipe 300 is threadedly connected to the water inlet hole 130 , and the water inlet pipe 300 includes a first branch pipe 310 and a second branch pipe 320 , and the first branch pipe 310 is externally connected to a tap water pipe.

[0032] The ball valve 400 is threadedly connected to the drain hole 150 .

[0033] The check valve 500 is threadedly connected to the pressure relief hole 110 .

[0034] The injection valve 600 is in communication with the second branch pipe 320 , and the injection valve 600 is fixedly connected to the second branch pipe 320 .

[0035] Specifically, the heating tube 200 is connected through a connecting hole 120 arranged at the top of the main body 100 to ensure that the heating tube 200 can be fixedly connected to the inner cavity of the main body 100. It is worth mentioning that the material of the main body 100 is an acid-resistant organic material, and the heating tube 200 is fixedly connected with the main body 100 to be integrally formed when the main body 100 is hot-melt formed.

[0036] In order to ensure that the deposited calcium and magnesium deposits can be removed, the water inlet pipe 300 is provided with a first branch pipe 310 and a second branch pipe 320. The second branch pipe 320 is connected to the injection valve 600. When the container of the acidic solution is connected to the injection valve 600, the tap water pipe in the first branch pipe 310 flows, and the acidic solution is mixed with the tap water and injected into the inner cavity of the main body 100 to dissolve the calcium and magnesium deposits. Then, the ball valve 400 is opened to discharge the turbid liquid containing dissolved calcium and magnesium ions to clean the inner cavity of the main body 100.

[0037] More specifically, the material of the body 100 is an acid-resistant organic material, which effectively prevents the acid solution from corroding the body 100 .

[0038] This embodiment relates to a vertical steel-plastic composite storage tank, which ensures the airtightness of the steel-plastic composite storage tank. This embodiment effectively solves the defect that the airtightness of the steel-plastic composite storage tank is low due to the opening for removing calcium and magnesium deposits.

[0039] like Figure 2 As shown, in one embodiment of the present application, the heating pipe 200 includes a support pipe 210, a plurality of heating vertical pipes 220 and a plurality of connecting pipes 230. The plurality of heating vertical pipes 220 are parallel to the direction of the extension line of the plumb line. Adjacent heating vertical pipes 220 are connected by one connecting pipe 230. Adjacent heating vertical pipes 220 are connected by the connecting pipe 230. The support pipe 210 is connected and connected to the heating vertical pipe 220. The support pipe 210 is fixed to the connecting hole 120.

[0040] Specifically, since the main body 100 of the present application is a vertical steel-plastic composite storage tank, the length of the main body 100 in the vertical direction is greater than the length in the horizontal direction, so the multiple heating vertical pipes 220 are parallel to the direction of the extension line of the plumb line.

[0041] In order to ensure the efficiency of the cold water in the heating body 100, the heating tube 200 of this embodiment uses a plurality of vertical heating tubes 220. It is worth mentioning that the vertical heating tubes 220 are connected to the support tube 210, and adjacent vertical heating tubes 220 are connected by a connecting tube 230. Adjacent vertical heating tubes 220 are connected by the connecting tube 230. This arrangement is to ensure that the heating wire and the electrical conductor can be accommodated inside the heating tube 200.

[0042] This embodiment relates to a heating pipe 200. A plurality of connecting pipes 230 ensures the sealing of a plurality of vertical heating pipes 220. A plurality of vertical heating pipes 220 increases the heating efficiency of the heating pipe 200.

[0043] like Figure 1 As shown, in one embodiment of the present application, the length of the support tube 210 is within a numerical range of greater than or equal to 0.15 times the height of the main body 100 and less than or equal to 0.2 times the height of the main body 100. The lengths of the plurality of heating risers 220 are all equal. The length of the heating riser 220 is within a numerical range of greater than or equal to 0.75 times the height of the main body 100 and less than or equal to 0.8 times the height of the main body 100.

[0044] Specifically, since there is a heating tube 200 inside the body 100, during operation, the heating tube 200 heats the cold water inside the body 100. In order to reduce the risk of excessive pressure inside the body 100 caused by the evaporation of cold water during the heating process, a 20% cavity needs to be left inside the body 100 to cope with the expansion of high-pressure water vapor. Therefore, the length of the support tube 210 is within a numerical range of greater than or equal to 0.15 times the height of the body 100 and less than or equal to 0.2 times the height of the body 100.

[0045] In order to ensure effective heat convection of cold water during the heating process, the heating riser 220 needs to be as close to the bottom of the main body 100 as possible. Therefore, the length of the heating riser 220 connected to the support tube 210 is within a numerical range of greater than or equal to 0.75 times the height of the main body 100 and less than or equal to 0.8 times the height of the main body 100.

[0046] It is worth mentioning that the connection hole 120 is arranged at the top of the main body 100, and the connection hole 120 is arranged at the center of the top of the main body 100, so the heating vertical pipe 220 is also basically in the center of the entire inner cavity of the main body 100, which can increase the uniform heating of cold water during the heating process.

[0047] like Figure 4 As shown, in one embodiment of the present application, a non-metallic heat-conducting layer is provided on the outer surface of the heating tube 200 .

[0048] Specifically, the outer surface of the heating tube 200 is provided with a non-metallic heat-conducting layer, and the non-metallic heat-conducting layer can be a silicon carbide sandblasting layer.

[0049] This embodiment involves a non-metallic heat-conducting layer. Since this embodiment uses an acidic solution to clean the inner cavity of the body 100, the inner cavity of the body 100 is an organic polymer with good acid resistance, but the entire main body of the heating tube 200 is a metal material. In order to reduce the damage of the acidic solution to the outer wall of the heating tube 200, this embodiment sets a non-metallic heat-conducting layer on the outer wall of the heating tube 200.

[0050] like Figure 3 As shown, in one embodiment of the present application, the heating pipe 200 further includes a connecting plate 240. Two heating vertical pipes 220 are connected through a connecting pipe 230 to form a group of heating branch pipes. One end of the connecting plate 240 is connected and conducted to the support pipe 210. Multiple groups of heating branch pipes are connected and conducted to the other end of the connecting plate 240.

[0051] Specifically, since the vertical steel-plastic composite storage tank is used in water heaters of different specifications, in a higher-power water heater, two adjacent heating vertical pipes 220 and a connecting pipe 230 form a group of U-shaped heating branch pipes, and each group of U-shaped heating branch pipes is fixedly connected to the support pipe 210 through a connecting plate 240.

[0052] This embodiment relates to a heating branch pipe, which improves the heating efficiency of the heating pipe 200 .

[0053] like Figure 2 As shown, in one embodiment of the present application, adjacent heating vertical pipes 220 are connected by a connecting pipe 230, and adjacent heating vertical pipes 220 are connected by the connecting pipe 230 to form a curved pipe. Both ends of the curved pipe are connected to the support pipe 210, and both ends of the curved pipe are connected to the support pipe 210.

[0054] Specifically, since the vertical steel-plastic composite storage tank is used in water heaters of different specifications, in a water heater with lower power, adjacent heating vertical pipes 220 are connected by a connecting pipe 230, and adjacent heating vertical pipes 220 are connected by the connecting pipe 230 to form a curved pipe.

[0055] This embodiment relates to a curved heating tube 200. The curved heating tube 200 improves the uniformity of heating the cold water by the heating tube 200.

[0056] like Figure 5As shown, in one embodiment of the present application, the check valve 500 includes a housing 510. The housing 510 includes a first split body 511 and a second split body 512. The outer diameter of the first split body 511 is equal to the outer diameter of the second split body 512. The inner diameter of the first split body 511 is smaller than the inner diameter of the second split body 512. The first split body 511 and the second split body 512 are fixedly connected. The central axis of the first split body 511 coincides with the central axis of the second split body 512. The inner wall of the first split body 511 is smoothly connected to the inner wall of the second split body 512. The first split body 511 is arranged close to the pressure relief hole 110. The second split body 512 is externally connected to an air duct.

[0057] The leakage check valve 500 further includes a recoil spring 520 and a steel ball 530. The diameter of the steel ball 530 is smaller than the inner diameter of the second split body 512. The diameter of the steel ball 530 is larger than the inner diameter of the first split body 511. The steel ball 530 is disposed between the inner cavity of the first split body 511 and the inner cavity of the second split body 512. One end of the recoil spring 520 abuts against the steel ball 530. The other end of the recoil spring 520 abuts against the inner wall of the second split body 512.

[0058] Specifically, the shell 510 is composed of a first sub-body 511 and a second sub-body 512 with different inner diameters, and its main purpose is to hold the steel ball 530. The steel ball 530 forms a limiting seal at the smooth connection between the inner wall of the first sub-body 511 and the inner wall of the second sub-body 512, thereby ensuring the unidirectional flowability of the check valve 500.

[0059] The recoil spring 520 rests against the steel ball 530. When the pressure acting on the equivalent cross-section of the steel ball 530 inside the first sub-body 511 reaches the elastic threshold of the recoil spring 520, the steel ball 530 and the smooth connection between the inner wall of the first sub-body 511 and the inner wall of the second sub-body 512 are separated to form a pressure relief effect.

[0060] The present embodiment relates to a check valve 500 , which ensures that the pressure inside the body 100 is lower than a dangerous pressure threshold value when the heating pipe 200 is heating cold water.

[0061] At the same time, the acidic solution will also produce a certain amount of carbon dioxide gas when cleaning and corroding calcium and magnesium deposits, and the check valve 500 can also ensure that the pressure inside the body 100 is lower than the dangerous pressure threshold.

[0062] like Figure 6 As shown, in one embodiment of the present application, the injection valve 600 includes a valve body 610 and a through-hole ball core 620. One end of the valve body 610 is provided with an external thread. The other end of the valve body 610 is provided with an internal thread. The through-hole ball core 620 is provided in the inner cavity of the valve body 610.

[0063] Specifically, one end of the valve body 610 is provided with an external thread, which is used to connect the second branch pipe 320 to ensure the sealing of the connection between the valve body 610 and the second branch pipe 320. The other end of the valve body 610 is provided with an internal thread, which is used to connect the port of the container of the acid solution.

[0064] In order to clarify the cleaning process of calcium and magnesium deposits inside the body 100, this embodiment also proposes the following working process:

[0065] The container of the acidic solution is threadedly connected to the valve body 610, and the mouth of the container faces downward. The through-hole ball center 620 is rotated to make the container and the second branch pipe 320 conductive, and high-speed tap water flows inside the first branch pipe 310. Since the flow rate of high-speed tap water is high and the hydraulic pressure is low, the acidic solution in the container is mixed with the tap water and flows into the inner cavity of the body 100. After the acidic solution enters the inner cavity of the body 100, it begins to corrode the calcium and magnesium deposits. The calcium and magnesium deposits are dissolved in the cold water in the body 100. The ball valve 400 is opened, and the waste water dissolved with the deposits flows out through the discharge hole. Since the body 100 is an organic polymer and the outer surface of the heating tube 200 is provided with a non-metallic heat-conducting layer, these components will not be corroded even if there is too much acidic solution.

[0066] like Figure 7 As shown, in one embodiment of the present application, the vertical steel-plastic composite storage tank further includes an outer steel body 700. The outer steel body 700 is sleeved on the outer wall of the main body 100.

[0067] This embodiment relates to an outer steel body 700. The outer steel body 700 is beneficial to improving the pressure resistance value of the main body 100. At the same time, the end of the outer steel body 700 accommodating the heating pipe 200 can be a directional pressure relief port.

[0068] The technical features of the above-described embodiments may be arbitrarily combined, and the execution order of the method steps is not limited. 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.

[0069] 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 understood as limiting the scope of the present 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 present application shall be subject to the attached claims.

Claims

1. A vertical steel-plastic composite storage tank, characterized in that: include: The body is provided with a pressure relief hole, a connection hole, a water inlet hole, a water outlet hole and a sewage discharge hole, wherein the connection hole is provided at the top of the body, and the water outlet hole is externally connected to a hot water pipeline; A heating tube is arranged in the inner cavity of the body, the heating tube is fixedly connected to the body through the connecting hole, and a heating wire is arranged in the heating tube; A water inlet pipe, threadedly connected to the water inlet hole, the water inlet pipe comprises a first branch pipe and a second branch pipe, the first branch pipe is externally connected to a tap water pipe; A ball valve, threadedly connected to the drain hole; A check valve, threadedly connected to the pressure relief hole; The liquid injection valve is communicated with the second branch pipe, and the liquid injection valve is fixedly connected to the second branch pipe.

2. The vertical steel-plastic composite storage tank according to claim 1 is characterized in that: The heating pipe comprises a supporting pipe, a plurality of heating vertical pipes and a plurality of connecting pipes; The plurality of heating vertical pipes are parallel to the direction of the extension line of the plumb line; Adjacent heating risers are connected via a connecting pipe; The adjacent heating vertical pipes are connected through the connecting pipe; The support tube is connected to the heating vertical tube; The supporting tube is fixed to the connecting hole.

3. The vertical steel-plastic composite storage tank according to claim 2 is characterized in that: The length of the support tube is within a numerical range of greater than or equal to 0.15 times the height of the main body and less than or equal to 0.2 times the height of the main body; The lengths of the plurality of heating risers are all equal; The length of the heating riser is within a numerical range of greater than or equal to 0.75 times the height of the main body and less than or equal to 0.8 times the height of the main body.

4. The vertical steel-plastic composite storage tank according to claim 3 is characterized in that: The outer surface of the heating tube is provided with a non-metallic heat-conducting layer.

5. The vertical steel-plastic composite storage tank according to claim 4 is characterized in that: The heating tube also includes a connecting plate; The two heating vertical pipes are connected through one connecting pipe to form a group of heating branch pipes; One end of the connecting plate is connected to the supporting tube and is in conduction; A plurality of groups of heating branch pipes are all connected to the other end of the connection plate and are in conduction.

6. The vertical steel-plastic composite storage tank according to claim 4, characterized in that: The adjacent heating vertical pipes are connected through a connecting pipe, and the adjacent heating vertical pipes are connected through the connecting pipe to form a curved pipe; Both ends of the curved pipe are connected to the supporting pipe, and both ends of the curved pipe are in conduction with the supporting pipe.

7. The vertical steel-plastic composite storage tank according to claim 1 is characterized in that: The leakage check valve comprises a housing; The housing comprises a first split body and a second split body; The outer diameter of the first sub-body is equal to the outer diameter of the second sub-body; The inner diameter of the first split body is smaller than the inner diameter of the second split body; The first split body and the second split body are fixedly connected; The central axis of the first split body coincides with the central axis of the second split body; The inner wall of the first split body is smoothly connected to the inner wall of the second split body; The first split body is arranged close to the pressure relief hole; The second branch is externally connected to an airway.

8. The vertical steel-plastic composite storage tank according to claim 7 is characterized in that: The leakage check valve also includes a return spring and a steel ball; The diameter of the steel ball is smaller than the inner diameter of the second body; The diameter of the steel ball is larger than the inner diameter of the first split body; The steel ball is disposed between the inner cavity of the first split body and the inner cavity of the second split body; One end of the recoil spring abuts against the steel ball; The other end of the recoil spring abuts against the inner wall of the second split body.

9. The vertical steel-plastic composite storage tank according to claim 8, characterized in that: The liquid injection valve comprises a valve body and a through-hole spherical core; One end of the valve body is provided with an external thread; The other end of the valve body is provided with an internal thread; The through hole spherical center is arranged in the inner cavity of the valve body.

10. The vertical steel-plastic composite storage tank according to claim 9, characterized in that: The vertical steel-plastic composite storage tank also includes an outer steel body; The outer steel body is sleeved on the outer wall of the main body.

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