Integrated high-density polyethylene container for containing pressure-resistant cold and hot water

Abstract

The utility model relates to the technical field of liquid storage tanks, in particular to an integrated high-density polyethylene container for containing pressure-resistant cold and hot water, which comprises a tank body. A plurality of pipe orifices are formed in the side surface of the tank body; a boss is arranged at one end of the tank body; the boss is provided with an opening; a nut is embedded in the boss; the tank body, the pipe opening and the nut are integrally formed through extrusion blow molding. The tank body, the nut and the pipe orifice are integrally formed, so that an electric heating rod can be conveniently mounted subsequently; during use, a metal water pipe insert does not need to be additionally arranged, so that the whole sealing is safe and reliable; by arranging the annular clamping ring, the strength of the tank body is enhanced, and a mounting structure is provided; the tank body, the pipe orifice and the nut are integrally formed through extrusion blow molding, so that the whole body has the characteristics of high efficiency, simple process, low cost, easiness in recovery and easiness in regeneration; in the aspects of inlet and outlet pipelines, mounting positions and size series, the currently used metal liner can be directly replaced without any process change or accessory increase and decrease according to the specification of the current metal liner.

Description

Technical Field

[0001] This utility model relates to the field of liquid storage tank technology, specifically to an integrated high-density polyethylene container for holding pressure-resistant hot and cold water. Background Technology

[0002] In the field of inner tank manufacturing technology for electric water heaters, kitchen water heaters, solar water heaters, and hot and cold water storage tanks, plastic inner tanks used for holding hot and cold water are mostly made of composite materials, with some even including metal materials and fiberglass. Their structural forms are mainly divided into two categories: split-type and integral-type. Split-type inner tanks have two common structures: one is a separate tank body design, requiring internal support structural components; the other is a separate tank body and end cap, with a mesh reinforcement in the middle layer. Integral-type inner tanks also exist in different forms, such as increasing strength by wrapping with fiberglass or requiring external metal pipe fittings for water connection.

[0003] However, these existing liner technologies have many drawbacks. The complex and diverse material composition leads to cumbersome production processes, involving the processing and combination of multiple materials. This not only increases production difficulty but also results in high defect rates and significantly increases production costs. The modular, spliced ​​design of the liner results in numerous connection points, making it difficult to guarantee sealing performance and prone to leakage, affecting the normal use and safety of the equipment. Changing the installation location and structure does not allow for a simple replacement of existing metal liners. Furthermore, the use of multiple materials in the liner hinders recycling and does not meet the requirements of single-material and lightweight green sustainable development, failing to satisfy current industry trends in environmental protection and resource recycling. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the prior art by providing an integrated high-density polyethylene container for holding pressure-resistant hot and cold water.

[0005] The purpose of this utility model is achieved through the following technical solution: an integrated high-density polyethylene container for holding pressure-resistant hot and cold water, comprising a tank body; the side of the tank body is provided with multiple pipe openings; one end of the tank body is provided with a boss; the boss has an opening; and a nut is embedded in the boss.

[0006] The tank body, pipe opening, and nut are integrally formed by extrusion blow molding.

[0007] The present invention is further configured such that the material of the tank body is high-density polyethylene.

[0008] The present invention is further configured such that the pipe opening includes a first pipe opening, a second pipe opening, and a third pipe opening.

[0009] The present invention is further configured such that the first port, the second port, and the third port are all located on the same side of the tank.

[0010] The present invention is further configured such that the outer wall of the tank is provided with an annular groove along the circumferential direction; the annular groove is provided with an annular retaining ring.

[0011] The present invention is further provided that both ends of the tank are provided with annular grooves; and both ends of the tank are provided with annular retaining rings.

[0012] The present invention is further configured such that the annular retaining ring is connected to a mounting block; the mounting block is provided with mounting holes.

[0013] The present invention is further provided that the outer wall of the tank is provided with a reinforcing structure.

[0014] The present invention is further configured such that the reinforcing structure includes multiple annular reinforcing ribs arranged along the circumferential direction of the outer wall of the tank.

[0015] The present invention is further configured such that the reinforcing structure includes a plurality of reinforcing rhomboid protrusions arranged in an array on the outer wall of the tank.

[0016] The beneficial effects of this utility model are as follows: By integrally molding the tank body and nut, it facilitates the subsequent installation of the electric heating rod; in addition, by integrally molding the tank body and the pipe opening, no additional metal water pipe fittings are required during use, ensuring overall sealing safety and reliability; the annular retaining ring with installation block serves to both strengthen the tank body and provide an installation structure; by integrally extruding and blow molding the tank body, pipe opening, and nut, the entire system features high efficiency, simple process, low cost, easy recycling, and easy regeneration; in terms of inlet and outlet pipelines, installation positions, and size series, it can directly replace the currently used metal inner tank without any process changes or additions and subtractions of accessories, based on the current metal inner tank specifications. Attached Figure Description

[0017] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of Example 1;

[0019] Figure 2 This is a structural schematic diagram from another perspective of Embodiment 1;

[0020] Figure 3 This is a structural schematic diagram of Example 2;

[0021] Among them: 1. Tank body; 21. First pipe opening; 22. Second pipe opening; 23. Third pipe opening; 3. Boss; 31. Opening; 32. Nut; 4. Annular groove; 5. Annular retaining ring; 51. Mounting block; 52. Mounting hole; 6. Annular reinforcing rib; 7. Reinforcing diamond protrusion. Detailed Implementation

[0022] The present invention will be further described in conjunction with the following embodiments.

[0023] Example 1, by Figures 1 to 2 As can be seen, the integrated high-density polyethylene container for holding pressure-resistant hot and cold water described in this embodiment includes a tank body 1; the side of the tank body 1 is provided with multiple pipe openings; one end of the tank body 1 is provided with a boss 3; the boss 3 has an opening 31; and the boss 3 is fitted with a nut 32.

[0024] The tank body 1, the pipe opening, and the nut 32 are integrally formed by extrusion blow molding.

[0025] Specifically, the integrated high-density polyethylene container for holding pressure-resistant hot and cold water described in this embodiment is manufactured by placing the pipe opening and nut 32 into a mold, and then forming the tank body 1, pipe opening and nut 32 in one piece by extrusion blow molding in the mold.

[0026] In this embodiment, the tank body 1 and the nut 32 are integrally formed, which facilitates the subsequent installation of the electric heating rod; in addition, by integrally forming the tank body 1 and the pipe opening, no additional metal water pipe fittings are required during use, which can ensure the overall sealing safety and reliability.

[0027] This embodiment integrates the tank body 1, the pipe opening, and the nut 32 through extrusion blow molding, resulting in a highly efficient, simple, low-cost, easily recyclable, and easily renewable product. In particular, it can directly replace the current metal inner tank in the assembly of electric water heaters without any modifications. Compared with the complex process, high labor costs, high environmental noise, and high environmental pollution and emission risks of metal inner tanks, this embodiment significantly reduces costs and eliminates environmental risks. In particular, the single-material and lightweight design aligns with the concept and technical route of easy recycling and regeneration of resources.

[0028] This embodiment describes an integrated high-density polyethylene container for holding pressure-resistant hot and cold water, wherein the tank body 1 is made of high-density polyethylene. Specifically, the tank body 1 in this embodiment is made of a single material, high-density polyethylene. This single-material, lightweight design aligns with the concept and technical approach of easy recycling and regeneration, resulting in low cost, easy recycling, and easy regeneration.

[0029] This embodiment describes an integrated high-density polyethylene container for holding pressure-resistant hot and cold water, wherein the pipe openings include a first pipe opening 21, a second pipe opening 22, and a third pipe opening 23. This arrangement facilitates connection to an inlet pipe, an outlet pipe, and a drain pipe, respectively.

[0030] This embodiment describes an integrated high-density polyethylene container for holding pressure-resistant hot and cold water. The first port 21, the second port 22, and the third port 23 are all located on the same side of the tank body 1. This arrangement makes the overall structure more reasonable and reliable, and facilitates the direct replacement of the current metal inner tank during the assembly of electric water heaters in the factory without any process changes or additions of any parts.

[0031] This embodiment describes an integrated high-density polyethylene container for holding pressure-resistant hot and cold water. The outer wall of the tank body 1 is provided with an annular groove 4 along the circumferential direction; the annular groove 4 is provided with an annular retaining ring 5. The above configuration facilitates the installation and fixation of the tank body 1 to the existing electric water heater shell.

[0032] This embodiment describes an integrated high-density polyethylene container for holding pressure-resistant hot and cold water. Both ends of the tank body 1 are provided with annular grooves 4; each annular groove 4 at both ends of the tank body 1 is provided with annular retaining rings 5. This design enhances the strength of the tank body 1 and improves its stability when installed with existing electric water heater casings.

[0033] This embodiment describes an integrated high-density polyethylene container for holding pressure-resistant hot and cold water. The annular retaining ring 5 is connected to an mounting block 51; the mounting block 51 is provided with mounting holes 52. With the above configuration, it can be used with the existing slots and mounting blocks of electric water heater shells, ensuring stable and reliable installation of the tank 1 with the existing electric water heater shell.

[0034] This embodiment describes an integrated high-density polyethylene container for holding pressure-resistant hot and cold water, wherein the outer wall of the tank body 1 is provided with a reinforcing structure. This structure enhances the strength of the tank body 1. The reinforcing structure includes multiple annular reinforcing ribs 6 arranged circumferentially along the outer wall of the tank body 1. This arrangement ensures sufficient strength for the tank body 1.

[0035] Example 2, by Figure 3 As can be seen, unlike Embodiment 1, the integrated high-density polyethylene container for holding pressure-resistant hot and cold water described in this embodiment includes a plurality of reinforcing diamond-shaped protrusions 7 arranged in an array on the outer wall of the tank body 1. This arrangement ensures that the tank body 1 has sufficient strength.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. An integrated high-density polyethylene container for holding pressure-resistant hot and cold water, characterized in that: Includes a tank body (1); the side of the tank body (1) is provided with multiple pipe openings; one end of the tank body (1) is provided with a boss (3); the boss (3) has an opening (31); the boss (3) is fitted with a nut (32); The tank body (1), the pipe opening, and the nut (32) are integrally formed by extrusion blow molding; The material of the tank (1) is high-density polyethylene; The outer wall of the tank (1) is provided with an annular groove (4) in the circumferential direction; the annular groove (4) is provided with an annular retaining ring (5); Both ends of the tank (1) are provided with annular grooves (4); both ends of the tank (1) are provided with annular retaining rings (5); The outer wall of the tank (1) is provided with a reinforcing structure.

2. The integrated high-density polyethylene container for holding pressure-resistant hot and cold water according to claim 1, characterized in that: The pipe openings include a first pipe opening (21), a second pipe opening (22), and a third pipe opening (23).

3. The integrated high-density polyethylene container for holding pressure-resistant hot and cold water according to claim 2, characterized in that: The first port (21), the second port (22) and the third port (23) are all located on the same side of the tank body (1).

4. The integrated high-density polyethylene container for holding pressure-resistant hot and cold water according to claim 1, characterized in that: The annular retaining ring (5) is connected to a mounting block (51); the mounting block (51) is provided with mounting holes (52).

5. The integrated high-density polyethylene container for holding pressure-resistant hot and cold water according to claim 1, characterized in that: The reinforcing structure includes multiple annular reinforcing ribs (6) arranged along the circumferential direction of the outer wall of the tank (1).

6. The integrated high-density polyethylene container for holding pressure-resistant hot and cold water according to claim 1, characterized in that: The reinforcing structure includes multiple reinforcing rhomboid protrusions (7) arranged in an array on the outer wall of the tank (1).

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