Hanging and positioning row type steel capable of preventing sheet deformation and hanging device

Abstract

The utility model discloses a suspension positioning row profile steel and a suspension device for preventing deformation of a plate, the suspension row profile steel is formed by downwards folding a stainless steel plate along two long sides, an obtuse included angle is formed between a contact side edge formed by downwards folding and a top end plane, and the contact side edge and a dovetail groove of a heat transfer plate are fixed in a surface contact manner. The suspension device comprises upper guide beam H-shaped steel and suspension row-shaped steel which is assembled below the upper guide beam H-shaped steel in a hoisting mode through bolts. The hanging row type steel structure is contacted and fixed with the heat transfer plate sheet in a surface contact manner, and has the advantages of good fixing effect, prolonged use performance of the plate heat exchanger, reduced abrasion of the plate sheet, convenience in maintenance, simple structure forming and low cost.

Description

Technical Field

[0001] This utility model relates to a suspension positioning steel strip, and more particularly to a suspension positioning steel strip and suspension device for preventing plate deformation. Background Technology

[0002] Plate heat exchangers are high-efficiency heat exchange devices composed of stacked heat transfer plates. Typically, the heat transfer plates are stacked by suspending them onto a fixed steel frame. The supporting steel frame ensures that the heat transfer plates do not move vertically or horizontally during operation, thus guaranteeing the stability and safety of the heat exchanger. Currently, most companies directly hang the plates on the carbon steel of an H-shaped fixing frame. However, this suspension method involves point contact. Due to the small contact area, the fixation is not very secure, and the stress on the heat transfer plates is high, especially for softer plates, which can easily cause wear. Furthermore, prolonged contact between the carbon steel H-shaped fixing frame and the plates can easily lead to electrostatic corrosion, affecting the service life of the heat transfer plates and hindering future maintenance. Utility Model Content

[0003] To address the shortcomings of the aforementioned technologies, this utility model provides a suspension positioning steel strip and suspension device for preventing plate deformation.

[0004] To solve the above technical problems, the technical solution adopted by this utility model is: a suspension positioning steel strip to prevent plate deformation. The suspension positioning steel strip is formed by folding down the long sides of stainless steel plates. The contact side formed by folding down forms an obtuse angle with the top plane. The contact side is fixed in surface contact with the dovetail groove of the heat transfer plate.

[0005] Preferably, the obtuse angle is 150°.

[0006] A suspension device comprising a suspension positioning steel strip.

[0007] Preferably, the suspended positioning steel section is assembled below the upper guide beam H-beam by bolt hoisting.

[0008] Preferably, a front fixing plate is fixed to the front side of the upper guide beam H-beam, and a rear fixing plate is fixed to the rear side of the upper guide beam H-beam.

[0009] Preferably, the upper guide beam H-beam has pre-installed internal threads for matching bolts.

[0010] Preferably, the suspension steel strip has through holes for bolts to pass through.

[0011] Preferably, the bolt sleeve is provided with a fixing short tube, which is limited between the upper guide beam H-beam and the suspension positioning row steel.

[0012] Preferably, multiple bolts are distributed at equal intervals, and the multiple bolts are assembled at the same height on the suspension positioning steel strip so that the suspension positioning steel strip is parallel to the upper guide beam H-beam.

[0013] This utility model discloses a suspension positioning steel strip and suspension device for preventing plate deformation. The newly designed suspension positioning steel strip structure features an obtuse angle, allowing the formed contact side to make surface contact with the heat transfer plates for fixation. Compared to traditional point contact, surface contact between the plates and the hanging beam increases the contact area, resulting in better fixation, neater plate assembly, and easier gasket assembly. This enhances the sealing performance of the plate heat exchanger and extends its service life. Simultaneously, surface contact disperses contact pressure, providing better protection, especially for softer plates, reducing wear. Furthermore, the stainless steel strip reduces electrostatic corrosion, ensuring better protection and maintenance. Additionally, the simple forming process of this new suspension positioning steel strip structure lowers the manufacturing difficulty of the suspension device and reduces costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the suspension device of this utility model.

[0015] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure.

[0016] Figure 3 This is a schematic diagram of the combined state of the suspension device and the heat transfer plate of this utility model.

[0017] In the diagram: 1. Upper guide beam H-beam; 2. Front fixing plate; 3. Rear fixing plate; 4. Suspension positioning steel strip; 4a. Contact side; 4b. Top plane; 5. Bolt; 6. Fixing short pipe; 7. Dovetail groove. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Example 1

[0020] This embodiment discloses a suspended positioning steel strip, which is fixedly contacted with the dovetail groove 7 of the heat transfer plate by means of surface contact when the heat transfer plate is stacked.

[0021] like Figure 2 and Figure 3As shown, the structural features of the suspension positioning steel bar 4 are as follows: the entire suspension positioning steel bar 4 is made of 304 stainless steel and is formed by folding down the long sides of the stainless steel plate. The contact side 4a formed by the downward folding forms an obtuse angle with the top plane 4b, so that the contact side 4a and the dovetail groove 7 of the heat transfer plate are in surface contact and fixed.

[0022] Preferably, considering the structural features of the dovetail groove 7 inherent in the heat transfer plate itself, to ensure better contact between the contact side 4a and the corresponding point of the dovetail groove 7, the angle formed by the obtuse angle is 150°, thus, as Figure 3 As shown in the enlarged view, the contact side 4a and the side of the dovetail groove 7 are fixed by surface contact in an abutting manner.

[0023] Therefore, the structure of the suspension positioning steel bar disclosed in this embodiment is simple. The contact side 4a that contacts the dovetail groove surface can be formed by bending with a mold. Since the forming method of the suspension positioning steel bar is simple, it has the advantages of high production efficiency and low cost. In addition, since welding is not required, it also avoids adverse problems such as welding deformation and poor welding.

[0024] Furthermore, the suspended positioning steel strip can be fixed in contact with the dovetail groove 7 of the heat transfer plate. Compared with the traditional point contact method, the surface contact has a larger contact area and a better fixing effect, making the plate assembly more neat. Correspondingly, the combination effect of the sealing gasket is better, which helps to improve the product quality of the plate heat exchanger, increase the sealing performance, and extend the service life of the plate heat exchanger. At the same time, the force is dispersed in surface contact compared with point contact. Especially for heat transfer plates made of softer materials, the suspended positioning steel strip in this embodiment can reduce the wear on the heat transfer plates and further maintain the service life of the plate heat exchanger.

[0025] Furthermore, traditional carbon steel is prone to electrostatic corrosion at contact points after prolonged contact with heat transfer plates. This corrosion causes the steel to adhere to the plates, making them difficult to remove. Forced removal can damage the plates, affecting maintenance and reducing the lifespan of the plate heat exchanger. In this embodiment, the suspension positioning bar is made of stainless steel, which significantly reduces the probability of electrostatic corrosion compared to traditional carbon steel, thus effectively solving the drawbacks of using traditional carbon steel.

[0026] Example 2

[0027] This embodiment discloses a suspension device. The suspension device adopts the suspension positioning steel strip disclosed in Embodiment 1. The suspension positioning steel strip is fixedly contacted with the dovetail groove 7 of the heat transfer plate in a surface contact manner.

[0028] like Figure 1As shown, the suspension positioning steel strip 4 is hoisted and assembled below the upper guide beam H-beam 1 by bolts 5. Correspondingly, the upper guide beam H-beam 1 has pre-set internal threads to match the bolts 5, and the suspension positioning steel strip 4 has through holes for the bolts 5 to pass through, so that the bolts 5 can assemble the suspension positioning steel strip 4 below the upper guide beam H-beam 1.

[0029] Generally speaking, there are multiple bolts 5 evenly spaced, and the multiple bolts 5 are assembled at the same height on the suspension positioning steel strip 4 so that the suspension positioning steel strip 4 is parallel to the upper guide beam H-beam 1.

[0030] To ensure that the bolts 5 are assembled at the same height on the suspension positioning steel section 4, a fixing short tube 6 is fitted over the bolt 5. Each fixing short tube 6 has the same height and type. After the bolt 5 passes through the through hole of the suspension positioning steel section 4, the fixing short tube 6 is fitted on, and then the bolt 5 is locked with the corresponding internal thread on the upper guide beam H-beam 1. Since the fixing short tube 6 is positioned between the upper guide beam H-beam 1 and the suspension positioning steel section 4, the fixing short tube 6 can precisely ensure that each bolt is assembled at the same height on the suspension positioning steel section 4, thereby ensuring that the suspension positioning steel section 4 and the upper guide beam H-beam 1 are parallel.

[0031] In addition, a front fixing plate 2 is fixed to the front side of the upper guide beam H-beam 1, and a rear fixing plate 3 is fixed to the rear side of the upper guide beam H-beam 1. The front and rear fixing plates serve to protect and reinforce the structure.

[0032] Therefore, the suspension device disclosed in this embodiment, by using the suspension positioning steel strip disclosed in Embodiment 1 to fix the dovetail groove 7 of the heat transfer plate in a surface contact manner, has the advantages of improving the product quality of the plate heat exchanger, extending the service life of the plate heat exchanger, and facilitating maintenance; in addition, the suspension device of this embodiment is simple to assemble, saves the suspension device setting process, and has the advantages of high production efficiency and low manufacturing cost.

[0033] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A suspension positioning steel strip for preventing plate deformation, characterized in that: The suspended positioning steel strip (4) is formed by folding down the long sides of the stainless steel plate. The contact side (4a) formed by folding down forms an obtuse angle with the top plane (4b). The contact side (4a) is fixed in surface contact with the dovetail groove (7) of the heat transfer plate.

2. The suspension positioning steel strip according to claim 1, characterized in that: The obtuse angle is 150°.

3. A suspension device, characterized in that: It includes the suspension positioning steel strip as described in any one of claims 1-2.

4. The suspension device according to claim 3, characterized in that: The suspended positioning steel strip (4) is hoisted and assembled below the upper guide beam H-beam (1) by bolts (5).

5. The suspension device according to claim 4, characterized in that: A front fixing plate (2) is fixed to the front side of the upper guide beam H-beam (1), and a rear fixing plate (3) is fixed to the rear side of the upper guide beam H-beam (1).

6. The suspension device according to claim 5, characterized in that: The upper guide beam H-beam (1) has pre-set internal threads for matching bolts (5).

7. The suspension device according to claim 6, characterized in that: The suspension positioning steel strip (4) has through holes for bolts (5) to pass through.

8. The suspension device according to claim 4 or 7, characterized in that: The bolt (5) is fitted with a fixing short tube (6), which is positioned between the upper guide beam H-beam (1) and the suspension positioning strip steel (4).

9. The suspension device according to claim 8, characterized in that: The bolts (5) are distributed at equal intervals. The bolts (5) are assembled at the same height on the suspension positioning steel strip (4) so ​​that the suspension positioning steel strip (4) is parallel to the upper guide beam H-beam (1).

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