A saddle structure that can prevent weld cracking

Abstract

This utility model relates to a saddle structure that can prevent weld cracking, comprising: a base plate mechanism, a pad plate welded to the equipment cylinder, and several stiffening plates and several web plates disposed between the base plate mechanism and the pad plate. The base plate mechanism includes: a fixing component and a sliding component. The fixing component includes: a base plate, a lower stainless steel plate, and a lower Teflon plate. The sliding component includes an adjusting plate, an upper stainless steel plate, and an upper Teflon plate. The fixing component has a circular hole, and the sliding component has an elongated hole corresponding to the circular hole. Anchor bolts are provided in the circular hole and the elongated hole to fix the fixing component to the ground, allowing the sliding component to slide axially relative to the fixing component. A relative sliding surface is formed between the upper Teflon plate and the lower Teflon plate, thereby preventing the internal stress generated by axial force from concentrating at the weld between the saddle and the heat exchanger, and thus preventing weld cracking.

Description

[Technical Field]

[0001] This utility model relates to the field of heat exchanger support, and in particular to a saddle structure that can prevent weld cracking. [Background Technology]

[0002] A heat exchanger is a device used to transfer heat between materials, enabling them to reach a specified temperature to meet process requirements. During heat exchange, the shell and internal components of a heat exchanger are subjected to the pressure and thermal stress of the medium, generating a relatively large axial force. As a result, the heat exchanger undergoes plastic deformation and displacement in the axial direction. For horizontally installed heat exchangers, saddle supports are generally used to solve this problem.

[0003] Please refer to the prior art (Chinese Patent ZL201922389460.9), which discloses a movable saddle for a horizontal heat exchanger. It includes a sliding base plate, a pair of width limiting plates, and a pair of pressure plates fixed to the sliding base plate by fastening bolts. The sliding base plate area between the pair of width limiting plates forms a sliding track, and the saddle base plate is slidably disposed within the sliding track. The inner end of the pressure plate extends beyond the inner end of the width limiting plate by a certain distance to form a limiting groove. Both ends of the saddle base plate are embedded in the limiting groove, and a gap is left between the upper end face of the two ends of the saddle base plate and the lower end face of the pressure plate. The height of the width limiting plate is the same as the height of the saddle base plate. A gasket is provided between the width limiting plate and the pressure plate. The saddle web plate is provided with saddle stiffeners connecting the saddle base plate and the saddle pad. This movable saddle for a horizontal heat exchanger has the advantages of superior sliding performance, more stable heat exchanger operation, and prevention of saddle swaying and jumping.

[0004] In the aforementioned prior art, relative sliding occurs between the saddle base plate and the sliding base plate. Since the saddle needs to provide support for the entire heat exchanger, the industry generally selects high-strength carbon steel as the material. Carbon steel is prone to rust after a period of use, which leads to an increase in the coefficient of friction between the saddle base plate and the sliding base plate (that is, the sliding between the two is no longer smooth). As a result, the internal stress generated by the axial force will be concentrated at the weld where the saddle and the heat exchanger are welded, causing the weld to crack.

[0005] Therefore, we considered how to improve the saddle structure so that the saddle can slide more smoothly in the axial direction when the heat exchanger undergoes plastic deformation under axial force, thereby avoiding the concentration of internal stress at the weld between the saddle and the heat exchanger. [Utility Model Content]

[0006] To address the aforementioned problems, the purpose of this utility model is to provide a saddle structure that can prevent weld cracking.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a saddle structure that can prevent weld cracking, comprising: a base plate mechanism, a pad plate welded to the equipment cylinder, and a plurality of stiffening plates and a plurality of web plates disposed between the base plate mechanism and the pad plate. The base plate mechanism includes: a fixing component and a sliding component. The fixing component includes: a base plate, a lower stainless steel plate, and a lower Teflon plate. The lower stainless steel plate is welded to the upper surface of the base plate, and the lower Teflon plate is bonded to the upper surface of the lower stainless steel plate with adhesive. The sliding component includes an adjusting plate, an upper stainless steel plate, and an upper Teflon plate. The upper surface of the Teflon plate is welded to the bottom of several stiffening plates and several web plates, and the lower surface of the adjustment plate is welded to the upper stainless steel plate. The upper Teflon plate is bonded to the lower surface of the upper stainless steel plate with adhesive. The fixing component has a circular hole, and the sliding component has an elongated hole corresponding to the circular hole. Anchor bolts are installed in the circular hole and the elongated hole to fix the fixing component to the ground, so that the sliding component can slide axially relative to the fixing component. A relative sliding surface is formed between the upper Teflon plate and the lower Teflon plate.

[0008] Preferably, the saddle structure of the present invention that can avoid weld cracking is further configured such that the plurality of stiffening plates are arranged in parallel.

[0009] Preferably, the saddle structure of the present invention that can avoid weld cracking is further configured such that the web plate and the stiffening plate are arranged perpendicularly.

[0010] Preferably, the saddle structure of the present invention that can avoid weld cracking is further configured such that the pad plate, stiffening plate, web plate, bottom plate and adjusting plate are all made of carbon steel.

[0011] Preferably, the saddle structure of the present invention that can avoid weld cracking is further configured such that the number of the circular holes and the elongated holes is four sets.

[0012] Preferably, the saddle structure of the present invention that can avoid weld cracking is further configured such that the pad is arranged in an arc shape.

[0013] Preferably, the saddle structure of the present invention that can avoid weld cracking is further configured such that the included angle formed between the two end faces of the pad is 132°.

[0014] Preferably, the saddle structure of the present invention that can avoid weld cracking is further configured such that: the pad plate has an exhaust hole in the center.

[0015] Compared with the prior art, the utility model has the following beneficial effects: Compared with the saddle structure in the prior art, the saddle structure in the utility model is provided with an upper stainless steel plate, a lower stainless steel plate, an upper Teflon plate and a lower Teflon plate. The reason for setting the stainless steel plate is that the materials of the bottom plate and the adjusting plate are both carbon steel. If the Teflon plate is directly adhered to the carbon steel material, after a period of use, the carbon steel material is prone to rust, which may lead to the risk of glue shedding. Therefore, in the utility model, by adding the stainless steel plate, the stainless steel plate not only does not rust, but also has a relatively smooth surface. Adhering the Teflon plate to the stainless steel plate can avoid the risk of glue shedding. In addition, the saddle structure in the utility model is provided with Teflon plates. Since the friction coefficient of Teflon (0.05 - 0.1) is close to that of ice, if the two Teflon plates are used as the relative sliding surfaces of the saddle, the sliding between them can form a self-lubricating sliding. Therefore, when the equipment undergoes plastic deformation and the saddle needs to axially slide, the sliding is very smooth, thus avoiding the concentration of internal stress generated by the axial force at the weld where the saddle is welded to the heat exchanger, and further avoiding cracking at the weld.

Brief Description of the Drawings

[0016] Figure 1 It is the front view structural schematic diagram of the saddle structure in the utility model.

[0017] Figure 2 It is the side view structural schematic diagram of the saddle structure in the utility model.

[0018] Figure 3 It is Figure 2 The partial enlarged view of A in

[0019] Figures 1 to 3 In it: 1. Bottom plate mechanism, 10. Fixing component, 100. Bottom plate, 101. Lower stainless steel plate, 102. Lower Teflon plate, 11. Sliding component, 110. Adjusting plate, 111. Upper stainless steel plate, 112. Upper Teflon plate, 12. Circular hole, 13. Long strip hole, 2. Equipment cylinder body, 3. Lining plate, 30. Exhaust hole, 4. Rib plate, 5. Web plate.

Detailed Description of the Specific Embodiment

[0020] The following further describes in detail a saddle structure capable of avoiding weld cracking according to the utility model through specific embodiments.

[0021] Refer Figures 1 to 3As shown, a saddle structure that can prevent weld cracking includes: a base plate mechanism 1, a pad 3 welded to the equipment cylinder 2, and a plurality of stiffening plates 4 and a plurality of web plates 5 disposed between the base plate mechanism 1 and the pad 3. The plurality of stiffening plates 4 are arranged in parallel, and the web plates 5 are arranged perpendicular to the stiffening plates 4. The pad 3 is arc-shaped, and the included angle formed between the two end faces of the pad 3 is 132°. The pad 3 has a vent hole 30 in the center, which is used to vent the air in the gap between the pad 3 and the equipment cylinder 2.

[0022] The base plate mechanism 1 includes a fixing component 10 and a sliding component 11. The fixing component 10 includes a base plate 100, a lower stainless steel plate 101, and a lower Teflon plate 102. The lower stainless steel plate 101 is welded to the upper surface of the base plate 100, and the lower Teflon plate 102 is bonded to the upper surface of the lower stainless steel plate 101 with adhesive. The sliding component 11 includes an adjusting plate 110, an upper stainless steel plate 111, and an upper Teflon plate 112. The upper surface of the adjusting plate 110 is welded to the bottom of several stiffening plates 4 and several web plates 5, respectively. The lower surface of the upper Teflon plate 10 is welded to the upper stainless steel plate 111. The upper Teflon plate 112 is bonded to the lower surface of the upper stainless steel plate 111 with adhesive. The fixing component 10 has a circular hole 12, and the sliding component 11 has an elongated hole 13 corresponding to the circular hole 12. Anchor bolts (not shown) are installed in the circular hole 12 and the elongated hole 13 to fix the fixing component 10 to the ground, allowing the sliding component 11 to slide axially relative to the fixing component 10. A relative sliding surface is formed between the upper Teflon plate 112 and the lower Teflon plate 102. In this embodiment, the pad 3, stiffening plate 4, web plate 5, bottom plate 100, and adjusting plate 110 are all made of carbon steel. There are four sets of circular holes 12 and elongated holes 13.

[0023] In summary, compared with the saddle structure in the prior art, the saddle structure of this utility model adds an upper stainless steel plate, a lower stainless steel plate, an upper Teflon plate, and a lower Teflon plate. The stainless steel plate is added because the base plate and the adjusting plate are both made of carbon steel. If the Teflon plate is directly bonded to the carbon steel, the carbon steel is prone to rusting after a period of use, which could lead to the adhesive peeling off. Therefore, by adding the stainless steel plate, this utility model not only prevents rusting but also has a smoother surface. The Teflon plate and the stainless steel plate are then bonded together... Adhesion can avoid the risk of glue falling off. In addition, the saddle structure in this utility model adds Teflon plates. Since the coefficient of friction of Teflon (0.05~0.1) is close to that of ice, if two Teflon plates are used as the relative sliding surfaces of the saddle, the sliding between the two can form a self-lubricating sliding. Therefore, when the equipment undergoes plastic deformation and the saddle needs to slide axially, the sliding is very smooth, thereby avoiding the concentration of internal stress generated by axial force at the weld between the saddle and the heat exchanger, and thus avoiding cracking at the weld.

[0024] The above embodiments are merely illustrative of the principles and effects of this utility model, as well as some of its applications, and are not intended to limit this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A saddle structure capable of avoiding cracking of a weld, characterized by: include: The system comprises a base plate mechanism, a pad plate welded to the equipment cylinder, and several stiffening ribs and several web plates disposed between the base plate mechanism and the pad plate. The base plate mechanism includes a fixing component and a sliding component. The fixing component includes a base plate, a lower stainless steel plate, and a lower Teflon plate. The lower stainless steel plate is welded to the upper surface of the base plate, and the lower Teflon plate is bonded to the upper surface of the lower stainless steel plate with adhesive. The sliding component includes an adjusting plate, an upper stainless steel plate, and an upper Teflon plate. The upper surface of the adjusting plate is welded to the bottom of several stiffening ribs and several web plates, and the lower surface of the adjusting plate is welded to the upper stainless steel plate. The upper Teflon plate is bonded to the lower surface of the upper stainless steel plate with adhesive. The fixing component has a circular hole, and the sliding component has an elongated hole corresponding to the circular hole. Anchor bolts are installed in the circular hole and the elongated hole to fix the fixing component to the ground, allowing the sliding component to slide axially relative to the fixing component. A relative sliding surface is formed between the upper Teflon plate and the lower Teflon plate.

2. A saddle structure capable of avoiding cracking of a weld as set forth in claim 1, characterized in that: The aforementioned stiffening plates are arranged in parallel.

3. The saddle structure capable of avoiding cracking of a weld bead according to claim 1, characterized in that: The web and stiffening plate are arranged perpendicularly.

4. The saddle structure as described in claim 1 that can prevent weld cracking, characterized in that: The pad, stiffening plate, web plate, bottom plate, and adjusting plate are all made of carbon steel.

5. The saddle structure capable of avoiding cracking of a weld bead according to claim 1, characterized in that: The number of circular holes and elongated holes is four sets.

6. The saddle structure capable of avoiding cracking of a weld as set forth in claim 1, wherein: The pad is arranged in an arc shape.

7. The saddle structure capable of avoiding cracking of a weld as set forth in claim 1, wherein: The included angle between the two ends of the pad is 132°.

8. The saddle structure capable of avoiding cracking of a weld as set forth in claim 1, wherein: The pad has an exhaust hole in the center.

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