Equal-diameter tank pressing device for fluorine-lined pipe fitting

Abstract

The utility model relates to a fluorine-lined pipe fitting equal-diameter tank pressing device which comprises a tank body arranged in a foundation pit, the upper end of the tank body extends out of the foundation pit, a supporting column is fixed to the position, located on one side of the tank body, in the foundation pit, the upper end of the supporting column is rotationally connected with a cantilever support, and a sealing cover capable of ascending and descending and used for sealing an upper end opening of the tank body is arranged on the lower side of the cantilever support in a suspended mode. A sealing structure is arranged between the sealing cover and the tank body, and a piston which is driven by a driving mechanism and used for extruding liquid in the tank body is arranged on the lower side of the sealing cover. The device is favorable for pressurizing the fluorine-lined pipe fitting so that the lining material layer is denser.

Description

Technical Field

[0001] The utility model relates to an equal-diameter pressure tank device for fluorine-lined pipe fittings. Background Art

[0002] Fluorine-lined pipe fittings enjoy the reputation of "the king of plastics" and have excellent temperature resistance and corrosion resistance. They are ideal conveying equipment for strongly corrosive media such as nitric acid, sulfuric acid, hydrofluoric acid, phosgene, chlorine, aqua regia, mixed acids, bromides and other organic solvents.

[0003] During the production process of fluorine-lined pipe fittings, before coating the fluorine-lined material layer, it is necessary to form the inner lining material inside the pipe fittings. After the shaping of the inner lining material, it is easy to have the situation that the fitting with the pipe fittings is not dense enough, which affects the product quality of subsequent fluorine-lined pipe fittings. In order to ensure that the fluorine-lined layer can be denser, a device capable of pressurizing and densifying fluorine-lined pipe fittings is needed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an equal-diameter pressure tank device for fluorine-lined pipe fittings, which helps to pressurize the fluorine-lined pipe fittings to make the inner lining material layer denser.

[0005] The technical solution of the utility model lies in: an equal-diameter pressure tank device for fluorine-lined pipe fittings, including a tank body arranged in a foundation pit and with its upper end extending out of the foundation pit. A support column is fixed on one side of the tank body in the foundation pit. The upper end of the support column is rotatably connected with a cantilever frame. A cover which can be lifted and lowered and is used to seal the upper port of the tank body is suspended on the lower side of the cantilever frame. A sealing structure is arranged between the cover and the tank body. A piston which is driven by a driving mechanism and is used to extrude the liquid in the tank body is arranged on the lower side of the cover.

[0006] Further, the lower end of the support column is fixedly connected with the bottom surface of the foundation pit. A plurality of connecting plates for fixedly connecting with the tank body are arranged at intervals from top to bottom on both side walls of the support part.

[0007] Further, a fixing frame fixedly connected with the outer wall of the upper part of the tank body is fixed on the ground at the upper end of the foundation pit. A notch for avoiding the support column is arranged on the fixing frame. Reinforcing plates fixedly connected with the tank body are arranged at intervals along the circumferential direction on the fixing frame.

[0008] Further, reinforcing plates connected with the fixing frame are fixedly arranged at intervals along the circumferential direction at the upper end of the tank body.

[0009] Further, a ring flange is arranged at the upper end of the tank body. A plurality of vertical bolt holes are arranged at intervals along the circumferential direction on the ring flange. A plurality of screw rods are correspondingly arranged through the cover along the circumferential direction. The screw rods pass through the vertical bolt holes and the cover is locked by nuts.

[0010] Further, two sealing grooves are provided on the upper end surface of the annular flange, and sealing rings that cooperate with the lower end surface of the cover are arranged in the sealing grooves.

[0011] Further, the driving mechanism includes a hydraulic cylinder fixed on the upper side of the cantilever frame. The telescopic rod of the hydraulic cylinder is connected to a fixed rod that passes through the cover and is connected to the piston. A pair of guide rods that pass through the cantilever frame are vertically fixed to the upper end of the cover.

[0012] Further, a sealing mechanism is provided between the fixed rod and the cover.

[0013] Further, a reinforcing structure is provided at the upper end of the cover.

[0014] Compared with the prior art, the present utility model has the following advantages: The device has a simple and compact structure, which helps to pressurize the fluorine-lined pipe fittings, making the inner lining material layer denser and improving the quality of the fluorine-lined pipe fittings; it also helps to coat the fluorine-lined material on the surface of the inner lining material layer subsequently. At the same time, the device is simple and convenient to operate and use. Description of the Drawings

[0015] Figure 1 is a schematic structural view of the present utility model;

[0016] Figure 2 is a schematic top view of the upper end of the tank body of the present utility model;

[0017] In the figure: 1 - foundation pit, 2 - tank body, 21 - reinforcing plate, 22 - annular flange, 23 - vertical bolt hole, 24 - sealing groove, 25 - sealing ring, 3 - support column, 31 - connecting plate, 4 - cantilever frame, 5 - cover, 51 - screw rod, 52 - guide rod, 53 - sealing mechanism, 54 - reinforcing structure, 6 - piston, 7 - fixed frame, 71 – notch, 72 - stiffening plate, 8 - hydraulic cylinder, 81 - fixed rod. Detailed Embodiments

[0018] To make the above features and advantages of the present utility model more understandable, specific embodiments are given below and are described in detail in conjunction with the drawings, but the present utility model is not limited thereto.

[0019] Refer to Figure 1 and Figure 2

[0020] A fluorine-lined pipe fitting equal-diameter pressure tank device, including a tank body 2 arranged in a foundation pit 1 and with its upper end extending out of the foundation pit. A support column 3 is fixed on one side of the tank body in the foundation pit. The upper end of the support column is rotatably connected to a cantilever frame 4. A cover 5 that can be lifted and lowered and is used to seal the upper port of the tank body is suspended on the lower side of the cantilever frame. A sealing structure is arranged between the cover and the tank body. A piston 6 driven by a driving mechanism and used to extrude the liquid in the tank body is arranged on the lower side of the cover. Thus, after the cover is connected and sealed with the tank body, the driving mechanism is used to drive the piston to press down the liquid (such as water) in the tank body, so as to make the liquid extrude the fluorine lining of the pipe fittings in the tank body and make the fluorine lining of the pipe fittings denser.

[0021] In this embodiment, the lower end of the support column is fixedly connected to the bottom surface of the foundation pit. A plurality of connecting plates 31 for fixedly connecting to the tank body are arranged at intervals from top to bottom on both side walls of the support part, so as to be integrated with the tank body.

[0022] In this embodiment, in order to better complete the fixation of the tank body, a fixing frame 7 fixedly connected to the outer wall of the upper part of the tank body is fixed on the ground at the upper end of the foundation pit. A notch 71 for avoiding the support column is arranged on the fixing frame. Stiffening plates 72 fixedly connected to the tank body are arranged at intervals along the circumferential direction on the fixing frame.

[0023] In this embodiment, strengthening plates 21 connected to the fixing frame are fixedly arranged at intervals along the circumferential direction at the upper end of the tank body, so as to ensure the connection between the tank body and the fixing frame.

[0024] In this embodiment, in order to better connect with the cover, a ring flange 22 is arranged at the upper end of the tank body. A plurality of vertical bolt holes 23 are arranged at intervals along the circumferential direction on the ring flange. A plurality of screw rods 51 are correspondingly arranged through the cover along the circumferential direction. The screw rods pass through the vertical bolt holes and the cover is locked by nuts.

[0025] In this embodiment, two circles of sealing grooves 24 are arranged on the upper end surface of the ring flange. Sealing rings 25 that cooperate with the lower end surface of the cover are arranged in the sealing grooves, so as to form a sealing structure and further ensure the sealing effect after the cover is connected to the tank body.

[0026] In this embodiment, in order to drive the piston to lift and lower and be able to realize the lifting and lowering of the cover, the driving mechanism includes a hydraulic cylinder 8 fixed on the upper side of the cantilever frame. The telescopic rod of the hydraulic cylinder is connected with a fixing rod 81 that passes through the cover and is connected to the piston, and can slide telescopically on the cover; A pair of guide rods 52 passing through the cantilever frame are vertically fixed at the upper end of the cover. When the piston descends, the cover descends together under the action of gravity. After the cover is connected and sealed with the tank body, the hydraulic cylinder can push the piston to continue descending to extrude the liquid in the tank body; after the cover is disassembled from the tank body, when the telescopic rod of the hydraulic cylinder contracts, the piston drives the cover to move up after contacting the cover.

[0027] In this embodiment, a sealing mechanism 53 is provided between the fixed rod and the cover to ensure the sealing effect when the fixed rod slides. A strengthening structure 54 is provided at the upper end of the cover to improve the strength of the cover.

[0028] During use, the fluorine-lined pipe fitting is placed into the tank, and liquid is added into the tank. Then, the cover is installed and sealed. Finally, the piston is driven by the hydraulic cylinder to extrude the liquid, and the downward pressing stops after reaching the moving pressure. After maintaining the pressure for a certain period of time, the fluorine-lined pipe fitting can be taken out.

[0029] If the present utility model discloses or involves components or structural members that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (such as using bolts or screws), or can also be understood as: a non-detachable fixed connection (such as riveting, welding). Of course, the mutual fixed connection can also be replaced by an integral structure (such as manufactured by integral forming using a casting process) (except when it is obviously impossible to adopt the integral forming process).

[0030] In addition, the terms used to represent the positional relationship or shape in any of the technical solutions disclosed in the present utility model, unless otherwise stated, include states or shapes that are approximate, similar, or close to it.

[0031] Any component provided by the present utility model can either be assembled from a plurality of individual components or be a single component manufactured by an integral forming process.

[0032] The above are only the preferred embodiments of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model shall fall within the scope covered by the present utility model.

Claims

1. A fluorine-lined pipe equal-diameter pressure tank device, comprising a tank body arranged in a foundation pit and with the upper end extending out of the foundation pit, characterized in that: A support column is fixed on one side of the tank body in the foundation pit, and a cantilever frame is rotatably connected to the upper end of the support column. A cover that can be lifted and lowered and is used to seal the upper port of the tank body is suspended on the lower side of the cantilever frame. A sealing structure is provided between the cover and the tank body, and a piston driven by a driving mechanism and used to squeeze the liquid in the tank body is provided on the lower side of the cover.

2. The fluorine-lined pipe equal-diameter pressure tank device according to claim 1 is characterized in that: The lower end of the support column is fixedly connected to the bottom surface of the foundation pit, and a plurality of connection plates fixedly connected to the tank body are arranged at intervals from top to bottom on both side walls of the support portion.

3. The fluorine-lined pipe equal-diameter pressure tank device according to claim 1 or 2, characterized in that: A fixing frame fixedly connected to the upper outer wall of the tank body is fixed on the ground at the upper end of the foundation pit, the fixing frame is provided with a notch for avoiding the support column, and stiffening plates fixed to the tank body are arranged at intervals on the fixing frame along the circumferential direction.

4. The fluorine-lined pipe equal-diameter pressure tank device according to claim 3 is characterized in that: The upper end of the tank body is fixed with reinforcing plates connected to the fixing frame at intervals along the circumferential direction.

5. The fluorine-lined pipe equal-diameter pressure tank device according to claim 1, 2 or 4, characterized in that: The upper end of the tank body is provided with an annular flange, and the annular flange is provided with a plurality of vertical bolt holes at intervals along the circumferential direction. The cover is correspondingly provided with a plurality of screw rods along the circumferential direction. The screw rods pass through the vertical bolt holes and are locked by nuts.

6. The fluorine-lined pipe equal-diameter pressure tank device according to claim 5, characterized in that: The upper end surface of the annular flange is provided with two circles of sealing grooves, and sealing rings matching with the lower end surface of the cover are provided in the sealing grooves.

7. The fluorine-lined pipe equal-diameter pressure tank device according to claim 1, 2, 4 or 6, characterized in that: The driving mechanism comprises a hydraulic cylinder fixed on the upper side of the cantilever frame, the telescopic rod of the hydraulic cylinder is connected to a fixing rod passing through the cover and connected to the piston, and a pair of guide rods passing through the cantilever frame are vertically fixed to the upper end of the cover.

8. The fluorine-lined pipe equal-diameter pressure tank device according to claim 7, characterized in that: A sealing mechanism is provided between the fixing rod and the sealing cover.

9. The fluorine-lined pipe equal-diameter pressure tank device according to claim 1, characterized in that: The upper end of the cover is provided with a reinforcement structure.

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