A pressure vessel support arrangement

Abstract

This utility model relates to the field of pressure vessel technology, specifically disclosing a pressure vessel support device, including a movable saddle and a fixed saddle. Both the movable and fixed saddles have adjustable-height supports connected to their bottoms. The movable saddle includes a limiting shell, within which a movable support block is provided. The upper end of the support block is connected to the pressure vessel via a second support plate. The upper end of the fixed saddle is connected to the pressure vessel via a first support plate. This utility model uses a sliding support block to support the pressure vessel, enabling it to move in accordance with the thermal expansion and contraction of the pressure vessel, ensuring free axial expansion and contraction of the vessel during thermal expansion. Support wheels are provided at the bottom of the support block, and guide rods guide its movement, ensuring smooth movement and reducing resistance. Compared to a long-bolt structure, this reduces sliding resistance. This support device improves the safety, reliability, and lifespan of the equipment, and is particularly suitable for medium and large pressure vessels sensitive to thermal displacement.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel technology, specifically to a pressure vessel support device. Background Technology

[0002] A horizontal pressure vessel is a horizontally placed cylindrical pressure vessel widely used in industries such as petroleum, chemical, pharmaceutical, and food processing for storing, reacting, separating, or transporting liquid or gaseous media. Horizontal pressure vessels are supported and fixed using saddle supports, such as the storage pressure vessel disclosed in patent CN211778946U.

[0003] Traditional saddle supports consist of a fixed end and a sliding end. The fixed end is directly bolted to the foundation to restrict axial displacement. The sliding end has elongated bolt holes on the saddle base plate, allowing it to move within a certain range after bolting to accommodate thermal expansion and contraction caused by temperature changes. However, the traditional sliding saddle support's method of compensating for thermal expansion through bolt displacement in elongated holes results in high frictional resistance (especially after corrosion), which can easily lead to sliding failure, causing additional stress and problems such as localized indentation of the shell, especially noticeable in large-diameter, thin-walled containers. Utility Model Content

[0004] This utility model addresses the aforementioned shortcomings of existing technologies by providing a pressure vessel support device. It employs a sliding block to support the pressure vessel, ensuring smooth block movement and reducing movement resistance. Compared to the transmission elongated bolt structure, the sliding resistance is reduced, thus improving the safety, reliability, and lifespan of the equipment. It is particularly suitable for medium and large-sized pressure vessels that are sensitive to thermal displacement.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pressure vessel support device includes a movable saddle and a fixed saddle. The bottom of both the movable saddle and the fixed saddle is connected to an adjustable-height support. The movable saddle includes a limiting shell, and a movable support block is provided inside the limiting shell. The upper end of the support block is connected to the pressure vessel through a second support plate. The upper end of the fixed saddle is connected to the pressure vessel through a first support plate.

[0007] Preferably, the limiting shell is provided with a guide rod that penetrates the support block, the support block and the guide rod are slidably engaged, and a spring is provided between the support block and the limiting shell.

[0008] Preferably, the limiting shell is provided with a guide rail, and the bottom of the support block is provided with a support wheel that cooperates with the guide rail.

[0009] Preferably, the support block has baffles attached to the upper end of the limiting shell on both sides.

[0010] Preferably, the support includes a support shell, the bottom of the support shell is provided with a base plate, a guide cylinder is provided inside the support shell, a top column that is slidably connected to the bottom of the limiting shell is provided inside the guide cylinder, and a positioning bolt for fixing the top column is connected to the side wall of the support shell.

[0011] Preferably, the top column is provided with multiple positioning holes of different heights that cooperate with positioning bolts.

[0012] Preferably, grease is applied between the support block and the guide rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model employs a sliding support block to support the pressure vessel, enabling it to move in sync with the vessel's thermal expansion and contraction. This ensures free axial expansion and contraction of the vessel during thermal expansion. Support wheels are installed at the bottom of the support block, and guide rods guide its movement, ensuring smooth movement and reducing resistance. Compared to a traditional long-bolt transmission structure, this reduces sliding resistance. This support device improves the safety, reliability, and lifespan of the equipment, and is particularly suitable for medium to large-sized pressure vessels sensitive to thermal displacement.

[0015] 2. This utility model, through the top column and positioning hole structure of the support, allows for convenient adjustment of the overall height of the saddle. This effectively solves the problems of uneven equipment foundations, differences in the dimensions of different equipment, or the need for on-site installation alignment, ensuring the horizontal installation of the pressure vessel and uniform load distribution.

[0016] 3. During the hoisting process, the spring automatically keeps the support block of the movable saddle in the middle position of the limiting shell, which greatly simplifies the alignment operation when the container is placed and improves the installation efficiency and safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the movable saddle.

[0019] Figure 3 This is a structural diagram of a fixed saddle.

[0020] Figure 4 This is the front view of the movable saddle;

[0021] Figure 5 for Figure 4 BB cross-sectional view;

[0022] In the diagram: 1-Fixed saddle; 101-First support plate; 2-Modible saddle; 201-Second support plate; 202-Baffle; 203-Spring; 204-Guide rod; 205-Support wheel; 206-Guide rail; 207-Support block; 208-Limiting shell; 3-Support; 301-Positioning hole; 302-Positioning bolt; 303-Base plate; 304-Top column; 305-Guide cylinder; 306-Support shell. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 As shown, a pressure vessel support device includes a movable saddle 2 and a fixed saddle 1. The bottom of both the movable saddle 2 and the fixed saddle 1 is connected to an adjustable-height support 3. Figure 2 As shown, the movable saddle 2 includes a limiting shell 208, within which is a movable support block 207. The limiting shell 208 constrains the movement range of the support block 207. The upper end of the support block 207 is connected to the pressure vessel via a second support plate 201. Figure 3 As shown, the upper end of the fixed saddle 1 is connected to the pressure vessel through the first support plate 101. The first support plate 101 and the second support plate 201 are arc plates and are welded and fixed to the pressure vessel.

[0025] like Figure 4 , Figure 5 As shown, the limiting shell 208 is provided with a guide rod 204 that passes through the support block 207. There are two guide rods 204, which are symmetrically arranged. The surface of the guide rod 204 should be hardened or chrome-plated to improve wear resistance. The support block 207 and the guide rod 204 are in sliding fit. Wear-resistant bushings (such as bronze bushings or engineering plastic bushings such as PTFE composite materials) are installed in the support block 207 to cooperate with the guide rod 204, reduce frictional resistance, and extend service life. The guide rod 204 should not be coated with grease. The grease should be a high-temperature, long-life lithium-based or complex calcium sulfonate-based grease.

[0026] A spring 203 is provided between the support block 207 and the limiting shell 208. The spring 203 can position the support block 207. The preload of the spring 203 needs to be accurately calculated to ensure that it can provide sufficient reset force so that the support block 207 can accurately return to the center position when the hoisting is unloaded, and will not generate excessive resistance to hinder the movement of the support block 207 when the pressure vessel expands and contracts due to heat.

[0027] The limiting shell 208 is equipped with a guide rail 206, and a guide groove is provided in the middle of the guide rail 206. The bottom of the support block 207 is equipped with a support wheel 205 that cooperates with the guide rail 206. Multiple support wheels 205 are provided and symmetrically arranged. A rubber sleeve is provided on the outside of the support wheel 205. The rubber sleeve should be made of oil-resistant and aging-resistant material (such as NBR or polyurethane) with moderate thickness, so as to effectively reduce vibration and noise without significantly increasing rolling resistance.

[0028] The support block 207 has baffles 202 attached to the upper end of the limiting shell 208 on both sides. The baffles 202 can block the upper opening of the limiting shell 208 to prevent dust from entering. The baffles 202 are connected to the support block 207 with bolts, which facilitates the maintenance of the internal components of the limiting shell 208.

[0029] The support 3 includes a support shell 306, with a base plate 303 at its bottom. Anchor bolt holes are provided on the base plate 303 to ensure the support 3 is stably fixed to the foundation. A guide cylinder 305 is located inside the support shell 306, and a top column 304, which is slidably fitted inside the guide cylinder 305 and connected to the bottom of the limiting shell 208, is also present. Positioning bolts 302 for fixing the top column 304 are connected to the side wall of the support shell 306. The inner wall of the guide cylinder 305 is lined with a wear-resistant sleeve (such as a stainless steel sleeve or an engineering plastic sleeve) to reduce friction with the top column 304 and ensure smooth sliding. The guide cylinder 305 must have sufficient height to ensure that the top column 304 has sufficient guiding length in its highest and lowest adjustment positions to prevent overturning. The top column 304 has a square or circular cross-section. Positioning holes 301 should be evenly arranged along the axis of the top column 304, with the hole spacing determined according to the required adjustment accuracy (e.g., 10mm or 20mm). Bushings are embedded in the positioning holes 301 to ensure sufficient strength and wear resistance.

[0030] Adjustment must be completed before the saddles are welded to the pressure vessel. During adjustment, ensure that the top column 304 of all supports 3 (movable saddle 2 and fixed saddle 1) is at the same height to keep the pressure vessel level. A level can be used to assist in adjustment.

[0031] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A pressure vessel support device, comprising a movable saddle and a fixed saddle, characterized in that: The bottom of both the movable saddle and the fixed saddle is connected to an adjustable height support. The movable saddle includes a limiting shell, and a movable support block is provided inside the limiting shell. The upper end of the support block is connected to the pressure vessel through a second support plate. The upper end of the fixed saddle is connected to the pressure vessel through a first support plate.

2. The pressure vessel support device as described in claim 1, characterized in that: The limiting shell is provided with a guide rod that penetrates the support block, and the support block and the guide rod are slidably engaged. A spring is provided between the support block and the limiting shell.

3. The pressure vessel support device as described in claim 2, characterized in that: The limiting shell is provided with a guide rail, and the bottom of the support block is provided with a support wheel that cooperates with the guide rail.

4. A pressure vessel support device as described in claim 1, characterized in that: The support block has baffles attached to the upper end of the limiting shell on both sides.

5. A pressure vessel support device as described in claim 1, characterized in that: The support includes a support shell, a bottom plate at the bottom of the support shell, a guide cylinder inside the support shell, a top column that is slidably connected to the bottom of the limiting shell inside the guide cylinder, and a positioning bolt for fixing the top column connected to the side wall of the support shell.

6. A pressure vessel support device as described in claim 5, characterized in that: The top column is provided with multiple positioning holes of different heights that mate with positioning bolts.

7. A pressure vessel support device as described in claim 1, characterized in that: Lubricant is applied between the support block and the guide rod.

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