CN220828966U - Liner structure - Google Patents

Abstract

The utility model discloses an inner container structure, which comprises: a liner body formed in a tub shape; a neck portion formed at the bung hole, a burring portion formed at the top thereof for accommodating the flange insert; the flanging part is provided with a connecting hole on the top surface for connecting and fixing the external component. Compared with the prior art, the utility model has fewer parts, is more convenient to assemble, can reduce the production cost, improve the production efficiency, reduce the leakage risk and improve the sanitation and safety.

Description

Liner structure

Technical Field

The utility model relates to the field of water treatment, in particular to a composite material liner structure for drinking water equipment.

Background

The water storage unit of the water heater is generally formed by welding metal sheet metal materials, and scale is prevented in the water storage unit in an enamel mode. However, in the continuous use process, the phenomena of welding seam leakage, corrosion, rust and scaling still exist, and solid particles generated by the problems can be gradually increased and accumulated, so that the defects of reduced heat efficiency, yellow water quality, reduced water yield and the like of the water heater are caused, and finally, the water heater is scrapped, so that the use of customers is influenced. Especially, the problem of reduced thermal efficiency will produce more energy consumption, and increasing the energy consumption a little at such a wide product popularity rate means that the exponential energy consumption is wasted, which is not negligible.

The utility model provides a metal inner bag structure that is used for drinking water equipment now, it is with heating element 2, sealing washer 3, adaptor 4 fixed connection by bolt 1, and sealing washer 5 sets up between adaptor 4 and inner bag 6, and screw insert 7 sets up in inner bag 5 and is connected fixedly through screw thread and adaptor 4, and inner bag 6 is formed with winding layer 8 outward. The metal liner has the defects of easy leakage of welding lines, easy corrosion and scaling in application, high energy consumption and high pollution in the forming process.

Therefore, the inner container made of the metal material has a plurality of defects in the use process, and the problem of excessive energy consumption in the production process (the enamel technology is formed at ultra-high temperature) is contrary to the national goal of carbon-to-peak carbon neutralization, so the trend of adopting novel alternative materials is imperative.

Chinese patent CN202120373785.2 discloses a structure based on PB (polybutene) material and threaded insert of bung hole, and forms a composite material pressure vessel bung body, which can well replace metal liner to be applied in water heater. However, this structure cannot be directly connected to the heating element, and it is also necessary to connect and use both via an adapter. Because the wading part is used at high temperature, the material and strength of the part are required to be high, and the cost is high. In other words, the utility model has the advantages of complex structure and high cost, and limits the application and popularization of the utility model.

For the above reasons, a composite pressure vessel resistant to high temperatures is a good alternative solution, but a series of adaptations of the structure of the inner container of the composite pressure vessel are required for the conventional composite pressure vessel to be applied to a water heater.

Disclosure of utility model

In the summary section, a series of simplified form concepts are introduced that are all prior art simplifications in the section, which are described in further detail in the detailed description section. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The utility model aims to solve the technical problem of providing the liner structure which can ensure the sealing performance and the overall strength, has a simple structure and is low in production cost.

In order to solve the above technical problems, the present utility model provides an inner liner structure, comprising:

A liner body formed in a tub shape;

A neck portion formed at the bung hole, a burring portion formed at the top thereof for accommodating the flange insert;

The flanging part is provided with a connecting hole on the top surface for connecting and fixing the external component. The external components include, but are not limited to, heating components.

Further, the turnover part is formed as an edge extending from the bung hole horizontally to the outside, and an overlapping part exists between the turnover part and the liner body in the vertical direction; the inner diameter is the same throughout the neck, including but not limited to the neck inner diameter being equal to the bung inner diameter.

The purpose of the design neck of the liner is that: when the assembly is used, the stressed main body is the liner and the heating pipe component, and how to combine the liner and the heating pipe component is considered to realize sealing and bearing strength. The liner requires a flanged flange feature to connect to the heating tube assembly. However, the flange portion is not covered with a winding layer, and the winding layer can only cover the middle part of the flange insert at most. That is, if there is no support for the flange insert, pressure cannot be applied by means of the blow-molded burring alone. The utility model provides a neck part for the opening part of the inner container, and the flange insert can be buckled at the neck part. And then through the combination of flange mold insert and winding layer, realize the transmission of atress.

Optionally, the liner structure is further improved, and the flange insert is formed into a split structure capable of being fixedly connected; for example, the flange insert can be selectively formed into a two-petal structure, a three-petal structure, a four-petal structure, a five-petal structure and a six-petal structure, and the petals are fixedly connected through bolts to form a flange insert;

Optionally, further improve the inner bag structure, the flange mold insert nests in the bung hole neck outside, and flange mold insert up end is laminated with the lower terminal surface of turn-ups portion, forms the support to turn-ups portion and neck.

Optionally, the liner structure is further improved, the upper end surface of the upper end part of the flange insert is formed into a flange structure, the upper end surface of the flange insert is provided with uniformly distributed connecting holes, the connecting holes are used for connecting with the heating pipe component,

Optionally, the further improvement of the liner structure further includes:

a seal formed between the heating tube assembly and the cuff portion.

Optionally, the liner structure is further improved, and the two half flange inserts can be pre-locked through a pre-tightening structure.

Optionally, the inner container structure is further improved, and the pre-tightening structure is a screw, a pin or a glue connection part.

Optionally, the inner container structure is further improved, and the flange insert is made of metal, engineering plastic or glass fiber reinforced plastic.

The utility model can at least realize the following technical effects;

1. Compared with the prior art, the utility model has fewer parts for assembly, is more convenient for assembly, can reduce the production cost and improve the production efficiency.

2. Compared with the prior art, the utility model has fewer parts and only one sealing part, can reduce the risk of leakage, and has better sealing effect.

3. Fewer parts are involved than in the prior art (the prior art thread insert and the adapter are both wading parts), while the flange insert of the present utility model does not wade. The present utility model greatly increases the sanitary safety of the system by reducing wading components. As in the prior art, both the threaded insert and the adapter are made of brass material which must contain some amount of lead which is released into the water during prolonged contact with the water.

Drawings

The accompanying drawings are intended to illustrate the general features of methods, structures and/or materials used in accordance with certain exemplary embodiments of the utility model, and supplement the description in this specification. The drawings of the present utility model, however, are schematic illustrations that are not to scale and, thus, may not be able to accurately reflect the precise structural or performance characteristics of any given embodiment, the present utility model should not be construed as limiting or restricting the scope of the numerical values or attributes encompassed by the exemplary embodiments according to the present utility model. The utility model is described in further detail below with reference to the attached drawings and detailed description:

Fig. 1 is a schematic diagram of the structure of the present utility model.

FIG. 2 is a schematic view of one possible embodiment of a flange insert.

Fig. 3 is a schematic top view of fig. 2.

Description of the reference numerals

Liner body 1

Neck 2

Flanging portion 3

Flange insert 4

Upper end 4.1 of the flange insert

Connecting hole 4.2

Middle part of flange insert 4.3

Lower end 4.4 of Flange insert

And an extension 4.5.

Detailed Description

Other advantages and technical effects of the present utility model will become more fully apparent to those skilled in the art from the following disclosure, which is a detailed description of the present utility model given by way of specific examples. The utility model may be practiced or carried out in different embodiments, and details in this description may be applied from different points of view, without departing from the general inventive concept. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. The following exemplary embodiments of the present utility model may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. It should be appreciated that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the technical solution of these exemplary embodiments to those skilled in the art. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present. Like reference numerals refer to like elements throughout the several views.

A first embodiment;

referring to fig. 1, the present utility model provides a liner structure, comprising:

A liner body 1 formed in a tub shape;

A neck 2 formed at the bung hole, a burring part formed at the top thereof for accommodating the flange insert;

The burring part 3 has a connection hole formed on the top surface thereof for connecting and fixing an external component.

A second embodiment;

with continued reference to FIG. 1, the present utility model provides a liner structure comprising:

A liner body 1 formed in a tub shape;

A neck 2 formed at the bung hole, a burring part formed at the top thereof for accommodating the flange insert;

The burring part 3 has a connection hole formed on the top surface thereof for connecting and fixing an external component.

The flange insert 4 is formed into a split structure capable of being connected and fixed, the flange insert 4 is nested outside the bunghole neck 2, the upper end face of the flange insert 4 is attached to the lower end face of the flanging part 3, and the flanging part 3 and the neck 2 are supported.

Optionally, in a further improvement of the second embodiment, an upper end surface of an upper end portion of the flange insert 4 is formed into a flange structure, the upper end surface of the flange insert 4 is provided with uniformly distributed connecting holes 5, and the connecting holes 5 are used for connecting with a heating pipe assembly;

Referring to fig. 2 and 3, the present invention provides a possible embodiment of a flange insert, taking two-lobe as an example, the flange insert cross-section is shaped like an "i";

the upper end face of the upper end part 4.1 of the flange insert is formed into a flange structure, the upper end face is attached to the liner flanging part 3 and is provided with uniformly distributed connecting holes 4.2, and the connecting holes 4.2 are used for being connected with a heating pipe component;

The middle part 4.3 of the flange insert can be at least partially covered by a wrapping layer of the pressure vessel; correspondingly, the wrapping layer of the pressure vessel can also optionally cover only the outer extension;

the lower end 4.4 of the flange insert is formed with an extension 4.5, the extension 4.5 being adapted to the shape of the outer wall of the inner container 6 and being covered by a wrapping layer of the pressure vessel.

Optionally, the second embodiment is further improved, and further includes:

a seal formed between the heating tube assembly and the cuff portion.

Alternatively, the second embodiment described above can be further modified in that the flange insert halves can be pre-locked by a pre-tightening structure.

Optionally, the second embodiment is further improved, and the pre-tightening structure is a screw, a pin or a glue connection part.

Alternatively, the second embodiment is further improved, wherein the flange insert is made of metal, engineering plastic or glass fiber reinforced plastic.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The present utility model has been described in detail by way of specific embodiments and examples, but these should not be construed as limiting the utility model. Many variations and modifications may be made by one skilled in the art without departing from the principles of the utility model, which is also considered to be within the scope of the utility model.

Claims (4)

1. A liner structure for a pressure vessel, comprising:

A liner body formed in a tub shape;

A neck portion formed at the bung hole, a burring portion formed at the top thereof for accommodating the flange insert;

a burring part, the top surface of which is formed with a connection hole for connecting and fixing an external component;

The flange insert is formed into a split structure capable of being connected and fixed;

The flange insert is nested outside the neck of the bung hole, the upper end face of the flange insert is attached to the lower end face of the flanging part, and the flanging part and the neck are supported;

The upper end face of the upper end part of the flange insert is formed into a flange structure, and the upper end face of the flange insert is provided with uniformly distributed connecting holes which are used for being connected with a heating pipe component;

a seal formed between the heating tube assembly and the cuff portion.

2. The liner structure of claim 1, wherein: the flange insert halves can be pre-locked by a pre-tightening structure.

3. The liner structure as claimed in claim 2, wherein: the pre-tightening structure is a screw, pin or glue connection part.

4. The liner structure of claim 1, wherein: the flange insert is made of metal, engineering plastic or glass fiber reinforced plastic.