Observation cover structure capable of achieving air tightness through water seal
By setting a water seal structure and acrylic casing on the observation cover, combined with the design of stainless steel assembly weldments and acrylic plates, the problems of cumbersome and bulky operation of the observation cover in the prior art are solved, and lightweight and strong sealing are achieved, improving ease of operation.
Patent Information
- Application Number
- CN202420881644.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-26
AI Technical Summary
Existing observation covers are cumbersome and bulky in industrial equipment, making it difficult to achieve lightweight and convenient air-tight sealing, especially when frequent opening and closing are required.
采用水封结构，通过在观察盖上设置内外两层亚克力套管并注入液体水，支撑管插入套管之间，结合不锈钢组焊件和亚克力板的设计，实现轻量化和强密封性。
The observation cover is lightweight, has strong sealing and easy operation, which reduces the labor intensity of the operating personnel and ensures airtightness.
Smart Images
Figure CN222224977U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of can cover sealing, in particular to an observation cover structure which realizes air tightness by using a water seal. Background Art
[0002] In industrial equipment, observation covers can be used for equipment such as reactors and storage tanks to monitor the operating status of the equipment.
[0003] In the actual production process, workers go to the top of the tank to observe the operation of the agitator blades in the tank and whether the materials are stirred evenly. They need to use an observation cover that is easy to open and close. In order to ensure a reliable seal, the existing observation cover needs to be tightened with a rubber pad by bolts, which is cumbersome to operate. At the same time, in order to prevent people from falling in, it is often made of steel plates. Especially for observation holes with large areas, it is very bulky and inconvenient for people to operate. Utility Model Content
[0004] In order to solve the above technical problems existing in the prior art, the utility model proposes an observation cover structure that uses a water seal to achieve airtightness, and its specific technical solution is as follows:
[0005] An observation cover structure that uses a water seal to achieve air tightness includes an observation plate installed on the top of a tank, an observation port is opened on the observation plate, and an observation cover covers the observation port. The observation cover includes a support tube, and a cover plate is sealed on the top of the support tube; inner and outer sleeves are sequentially arranged around the outer side of the observation port, the bottom of the sleeve is sealed and connected to the observation plate, and liquid water is injected between the inner sleeve and the outer sleeve; the support tube is inserted between the inner sleeve and the outer sleeve and immersed in the liquid water.
[0006] Furthermore, the observation cover is a welded part made of stainless steel, and the cover plate is arranged on the top of the support tube by welding and sealing.
[0007] Furthermore, a handle is fixedly mounted on the cover plate via screws.
[0008] Furthermore, the height of the support tube is greater than the height of the inner sleeve, and the height of the inner sleeve is greater than the height of the outer sleeve.
[0009] Furthermore, a rubber pad is provided between the observation plate and the top plate of the tank top and is tightened by bolts.
[0010] Furthermore, the observation plate is made of an acrylic plate.
[0011] Furthermore, the inner sleeve and the outer sleeve are both made of acrylic tube.
[0012] Furthermore, the bottom of the sleeve is adhesively connected to the observation plate.
[0013] Furthermore, the thickness of the observation plate is >20 mm.
[0014] Furthermore, the deadweight of the observation cover is greater than the sum of the value obtained by multiplying the pressure surface by the maximum air pressure divided by 9.8 N / Kg and 2 Kg, and is less than 15 Kg.
[0015] Beneficial effects: The observation cover structure of the utility model has the advantages of light weight, strong sealing and easy operation and observation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a specific structural schematic diagram of an observation cover structure that uses a water seal to achieve air tightness in an embodiment of the utility model;
[0017] Figure 2 It is a schematic cross-sectional structure diagram of an observation cover structure that uses a water seal to achieve air tightness in an embodiment of the utility model;
[0018] In the figure, 1-handle, 2-cover plate, 3-support tube, 4-observation plate, 5-rubber pad, 6-top plate, 7-inner casing, 8-outer casing, 9-liquid water. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0020] like Figure 1 and Figure 2 As shown, an observation cover structure of this embodiment that uses water seal to achieve airtightness includes an observation plate 4 installed on the tank top, and a rubber pad 5 is provided between the observation plate 4 and the top plate 6 of the tank top, and is tightened by bolts. An observation port is opened on the observation plate 4, and inner and outer sleeves are sequentially provided around the outer side of the observation port. The observation plate 4 and the sleeve are both made of acrylic material, and the bottom of the sleeve is glued to the observation plate 4, and liquid water 9 is injected between the inner sleeve 7 and the outer sleeve 8, wherein the height of the inner sleeve 7 is greater than the height of the outer sleeve 8.
[0021] The observation port is covered with an observation cover, which is a stainless steel welded component, including: a support tube 3, a sealing cover plate 2 is welded on the top of the support tube 3, and a handle 1 is fixedly installed on the cover plate 2 by screw connection. The height of the support tube 3 is greater than the height of the inner sleeve 7, and the bottom of the support tube 3 is inserted between the inner and outer sleeves and immersed in liquid water 9.
[0022] With the observation cover assembly of the utility model, when the observation range is small, you only need to open the observation cover with the handle 1 to observe. If you need to inspect the agitator, you need to loosen the fixing bolts of the observation plate 4 to open it. The observation plate 4 is made of acrylic plate, and an acrylic tube is glued to the observation port side of the acrylic plate, which not only ensures that the water used for sealing does not leak out, but also reduces the overall weight a lot, reducing the labor intensity of the operator. The acrylic plate itself is transparent. In most cases, you only need to look through the observation plate 4 to see the situation in the tank. If you need to see the material in the tank and the operation of the mixing blades more clearly, you can open the observation cover and watch it easily.
[0023] At the same time, according to the standard (GB / T50128-2014), the lower limit of the pressure resistance of the atmospheric fixed roof storage tank is -0.25X10 3 Pa, the upper limit is the pressure on the tank top pressure surface, tentatively set at 1.5X10 3 Pa≈ 150mm water column. Then the acrylic tube on the observation plate 4 should be 10~20mm higher than the liquid level. At the same time, in order to prevent the observation cover from being too light and being pushed away by the pressurized air in the tank, the weight of the observation cover should be greater than (pressure surface × maximum air pressure / 9.8N / Kg value + 2Kg). In order not to be too heavy and difficult for operators to lift, the weight of the observation cover should be <15Kg. At the same time, in order to take into account the safety of personnel walking on the top of the tank, the thickness of the observation plate 4 should be >20mm or more.
[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. In the present utility model, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0025] The above is only a preferred implementation case of the utility model, and does not limit the utility model in any form. Although the implementation process of the utility model is described in detail above, for those familiar with the art, they can still modify the technical solutions recorded in the above examples, or replace some of the technical features therein with equivalents. All modifications and equivalent replacements made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. An observation cover structure that uses a water seal to achieve airtightness, comprising an observation plate (4) mounted on a tank top, the observation plate (4) having an observation port, and an observation cover covering the observation port, characterized in that: The observation cover comprises a support tube (3), and a cover plate (2) is provided on the top of the support tube (3) in a sealed manner; An inner and outer sleeve are sequentially arranged around the outer side of the observation port, the bottom of the sleeve is sealedly connected to the observation plate (4), and liquid water (9) is injected between the inner sleeve (7) and the outer sleeve (8); The support tube (3) is inserted between the inner sleeve (7) and the outer sleeve (8) and immersed in liquid water (9).
2. The observation cover structure using water seal to achieve airtightness as claimed in claim 1, characterized in that: The observation cover is a welded component made of stainless steel, and the cover plate (2) is arranged on the top of the support tube (3) by welding and sealing.
3. The observation cover structure using water seal to achieve airtightness as claimed in claim 1, characterized in that: A handle (1) is fixedly mounted on the top of the cover plate (2) via screws.
4. The observation cover structure using water seal to achieve airtightness as claimed in claim 1, characterized in that: The height of the support tube (3) is greater than the height of the inner sleeve (7), and the height of the inner sleeve (7) is greater than the height of the outer sleeve (8).
5. The observation cover structure using water seal to achieve airtightness as claimed in claim 1, characterized in that: A rubber pad (5) is provided between the observation plate (4) and the top plate (6) of the tank top and is tightened by bolts.
6. The observation cover structure using water seal to achieve airtightness as claimed in claim 1, characterized in that: The observation plate (4) is an acrylic plate.
7. The observation cover structure using water seal to achieve airtightness as claimed in claim 1, characterized in that: The inner sleeve (7) and the outer sleeve (8) are both acrylic tubes.
8. The observation cover structure using water seal to achieve airtightness as claimed in claim 1, characterized in that: The bottom of the sleeve is adhesively connected to the observation plate (4).
9. The observation cover structure using water seal to achieve airtightness as claimed in claim 1, characterized in that: The thickness of the observation plate (4) is >20 mm.
10. The observation cover structure using water seal to achieve airtightness as claimed in claim 1, characterized in that: The deadweight of the observation cover is greater than the sum of the value obtained by multiplying the pressure surface by the maximum air pressure divided by 9.8 N / Kg and 2Kg, and is less than 15 Kg.