Flange structure and liquid storage tank provided with same

Abstract

The utility model belongs to the field of biological medicine container equipment manufacturing, and discloses a flange structure which comprises a flange base, the flange base is provided with an upper surface, a lower surface opposite to the upper surface and a through hole penetrating through the upper surface and the lower surface, and the lower surface is detachably and fixedly connected with an external connecting surface. The upper surface is detachably and fixedly connected with a flange pressing plate, and the flange pressing plate is provided with at least two flange holes used for installing external configuration. The problem that the reserved gap between the two sterile flanges installed on the liquid storage tank end socket is insufficient is solved.

Description

Technical Field

[0001] The utility model relates to the field of biomedical container equipment manufacturing, in particular to a stainless steel liquid storage tank aseptic flange. Background Art

[0002] Stainless steel liquid storage tanks are widely used in the biomedical equipment manufacturing industry. When installing pipelines or instruments, sterile flanges are used for the heads of liquid storage tanks. However, there may be some special situations where the tank volume is very small, the head area is small, or the tank head requires more flange interfaces.

[0003] The existing sterile flanges are in a single-body form. Considering the influence of various factors such as the head opening, welding operability, and welding deformation, they need a certain gap to be welded to the head of the liquid storage tank. This makes the space and number of sterile flanges that can be installed on the head of the liquid storage tank very limited, which may make it difficult to install the pipes and instruments required on the liquid storage tank. Figure 1 As shown, it can be seen that when the size of the head is fixed, installing two sterile flanges there will not only fail to leave a gap, but may even cause interference. Utility Model Content

[0004] The utility model aims to provide a flange structure, comprising a flange pressing plate with at least two flange holes, which increases the installation space of the external configuration and improves the installation efficiency when the head area of ​​the liquid storage tank is fixed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flange, comprising a flange base, the flange base having an upper surface, a lower surface opposite to the upper surface, and a through hole penetrating the upper surface and the lower surface, the lower surface being detachably fixedly connected to an external connection surface, the upper surface being detachably fixedly connected to a flange pressing plate, the flange pressing plate having at least two flange holes for installing an external configuration. When the head area of ​​a liquid storage tank is fixed, the space for installing an external configuration is increased to avoid the occurrence of interference problems in the installation of the external configuration.

[0006] According to the utility model, further, the flange pressure plate includes a first connecting section for center positioning, and a second connecting section arranged on both sides of the first connecting end, the first connecting section having a first side surface and a second side surface arranged opposite to each other, the first side surface and the second side surface are both provided with a first arc groove, and the openings of the two first arc grooves are opened back to back; the second connecting section is symmetrically arranged on the left and right sides of the first connecting section, the second connecting section has a third side surface, a second arc groove is opened on the third side surface, the opening of the second arc groove faces the opening of the corresponding first arc groove, and the openings of the two arc grooves form a flange hole for installing an external configuration.

[0007] According to the utility model, further, there are two flange holes.

[0008] According to the utility model, further, the number of flange holes is three.

[0009] According to the utility model, further, a sealing ring is arranged between the upper surface and the flange pressure plate, and the position and aperture of the sealing ring correspond to the position and aperture of the flange hole.

[0010] The utility model also provides a liquid storage tank, which has a sealing head as a connection surface, adopts the above-mentioned flange structure, and the flange base is fixedly connected to the sealing head.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] It has at least two flange holes, which eliminates the reserved gap required for welding two or more single sterile flanges, solves the problem of insufficient head space of the liquid storage tank causing difficulty in installation, and can make more full use of the welding space on the liquid storage tank, set multiple flange holes, so that instruments and pipelines can be installed smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of installing two one-piece flanges on an existing tank head;

[0014] Figure 2 This is a structural schematic diagram of a flange structure of the utility model;

[0015] Figure 3 It is an exploded schematic diagram of a flange structure of the utility model;

[0016] Figure 4 The figure is a three-dimensional structural schematic diagram of a flange structure of the utility model.

[0017] In the figure: 1-flange base, 11-upper surface, 12-lower surface, 13-through hole, 2-flange pressure plate, 21-flange hole, 22-first connecting section, 221 first side surface, 222-second side surface, 23-second connecting section, 231-third side surface, 3-bolt, 4-first arc groove, 5-second arc groove, 6-sealing ring, 7-blind plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 2 and Figure 3As shown, the utility model provides a technical solution: a flange structure, including a flange base 1, the flange base 1 has an upper surface 11, a lower surface 12 opposite to the upper surface, and a through hole 13 penetrating the upper surface 11 and the lower surface 12, the lower surface 12 is welded and fixedly connected or detachably fixedly connected to the head of the liquid storage tank, the position of the through hole 13 corresponds to the position of the connection surface (such as the head of the liquid storage tank), the upper surface 11 is detachably fixedly connected with a flange pressing plate 2, the flange pressing plate 2 has two flange holes 21, the number and position of the through holes 13 correspond to the flange holes 21, and the lower surface 12 of the flange base 1 is fixedly connected to the head of the liquid storage tank. The flange hole 21 is used to install external configurations such as instruments and equipment, and in a limited space, a larger external configuration installation space is added. The position of the through hole 13 corresponds to the position of the head of the liquid storage tank, ensuring that the instrument or instrument installed in the flange hole 21 can be connected to the head of the liquid storage tank. Preferably, the flange pressing plate 2 is fixedly connected to the flange base 1 by bolts 3, which is easy to disassemble and replace. Preferably, the aperture sizes of the two flange holes 21 can be the same or different, corresponding to the size of the instrument connection port.

[0020] Furthermore, the flange pressure plate 2 includes a first connecting section 22 and a second connecting section 23, and the first connecting section 22 is a rectangular plate. The first connecting section 22 has a first side surface 221 and a second side surface 222 that are arranged opposite to each other, and the first side surface 221 and the second side surface 222 are both provided with a first arc groove 4, and the openings of the two first arc grooves 4 are arranged opposite to each other, and the first connecting section 22 is installed in the middle position of the flange base 1. Preferably, the longitudinal center line of the first connecting section 22 coincides with the longitudinal center line of the flange base 1, and the longitudinal direction here is relative to Figure 2 Description; There are two second connecting segments 23, which are symmetrically arranged on the left and right sides of the first connecting segment 22 about the longitudinal center line of the first connecting segment 22. The second connecting segment 23 has a third side surface 231, and a second arc groove 5 is opened on the third side surface 231. The opening of the second arc groove 5 faces the opening of the corresponding first arc groove 4, and the openings of the two arc grooves together form a flange hole 21. Under the condition of the same head, two flange holes 21 are formed, which increases the installation space of the external configuration, and there will be no problem of mutual interference, thereby improving the installation efficiency of the external configuration.

[0021] Furthermore, in order to improve the installation efficiency, the flange pressure plate 2 can have three or more flange holes 21. If there are three flange holes 21, two first connecting sections 22 need to be set in the middle to form a flange hole 21 located in the middle, and the two second connecting sections 23 are located on the left and right sides to form flange holes 21 located on both sides; the same applies to more than three flange holes 21, and a first connecting section 22 can be added in the middle.

[0022] In order to improve the sealing performance, a sealing ring 6 is arranged between the upper surface 11 and the flange pressing plate 2, and the position and aperture of the sealing ring 6 correspond to the position and aperture of the flange hole 21. When the flange hole 21 is required to connect an instrument or meter, the flange pressing plate 2 presses the sealing ring 6 to achieve the peripheral sealing of the flange hole 21, thereby improving the sealing performance of the flange pressing plate 2 and the flange base 1.

[0023] When the flange hole 21 is not needed, such as when cleaning the liquid storage tank, the instrument or device is removed and the blind plate 7 blocks the opening of the flange hole 21 .

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange structure, characterized in that: It includes a flange base, which has an upper surface, a lower surface opposite to the upper surface, and a through hole penetrating the upper surface and the lower surface. The lower surface is fixedly connected to the external connecting surface, and the upper surface is detachably fixedly connected with a flange pressure plate, which has at least two flange holes for installing external configurations.

2. A flange structure according to claim 1, characterized in that: The flange pressure plate includes a first connecting section for center positioning and a second connecting section arranged on both sides of the first connecting end, the first connecting section having a first side surface and a second side surface arranged opposite to each other, the first side surface and the second side surface both having a first arc groove, and the openings of the two first arc grooves are opened opposite to each other; the second connecting section is symmetrically arranged on the left and right sides of the first connecting section, the second connecting section has a third side surface, a second arc groove is opened on the third side surface, the opening of the second arc groove faces the opening of the corresponding first arc groove, and the openings of the two arc grooves form a flange hole for installing an external configuration.

3. A flange structure according to claim 1, characterized in that: There are two flange holes.

4. A flange structure according to claim 1, characterized in that: The number of the flange holes is three.

5. A flange structure according to claim 1, characterized in that: A sealing ring is arranged between the upper surface and the flange pressing plate, and the position and aperture of the sealing ring correspond to the position and aperture of the flange hole.

6. A liquid storage tank having a head as a connection surface, characterized in that: The flange structure as described in any one of claims 1 to 5 is adopted, and the flange base is fixedly connected to the head.

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