Sulfur dioxide fan cooler spacer gasket

Abstract

The utility model relates to fan cooler interval pad technical field, specifically disclose a kind of sulfur dioxide fan cooler interval pad, including main beam, the both sides of main beam are equipped with positioning structure respectively, the both ends of main beam are fixedly connected with edge arc block, first positioning structure is located in the side of main beam, contain multiple groups of symmetric distribution's positioning slot, each group positioning slot is made of two symmetrical isosceles trapezium, second positioning structure is located in the other side of main beam, eliminate displacement risk by double positioning structure, eliminate cooling water short-circuit phenomenon, significantly improve heat exchange efficiency, the combination design of isosceles trapezoidal slot and cylindrical positioning pin enhances impact stability, reduces equipment maintenance frequency, arc edge realizes automatic alignment sealing, installation efficiency is improved, integrally formed corrosion-resistant structure resists sulfur dioxide environmental erosion, prolongs cooler overall life, finally guarantees fan bearing continuous safe operation, avoid unplanned shutdown loss.

Description

Technical Field

[0001] This utility model relates to the technical field of spacer pads for fan coolers, and specifically discloses a spacer pad for a sulfur dioxide fan cooler. Background Technology

[0002] In large-scale wind turbine equipment, centralized lubrication is typically used. An oil pump pressurizes lubricating oil from the oil tank and supplies it to various distributed lubrication points, then returns it to the oil tank, circulating continuously for lubrication. To remove heat from the lubricating oil during lubrication, a cooler is installed in the oil circuit, allowing oil and water to flow in opposite directions for intermittent heat exchange.

[0003] The sulfur dioxide fan cooler features a cylindrical design with an internal heat exchange copper alloy tube bundle. Cooling water flows within the tube bundle, while lubricating oil flows between the tubes. To extend the cooling water flow path, the water flows in from the bottom of one end plug, then turns back 180° at the other end's sealed plug, flowing back from the top of the cooler tube bundle to the inlet end, completing one cycle. The cooling water inlet end of the cooler is divided into upper and lower sections by an arched plug and a flexible spacer. This ensures that the cooling water circulates along the aforementioned path, making a good cooler spacer crucial.

[0004] In actual production and operation, it was found that traditional spacer pads are prone to displacement under water pressure, connecting the upper and lower chambers at the cooler water inlet. This causes some cooling water to short-circuit, significantly reducing the cooling effect of the lubricating oil, resulting in excessively high fan bearing temperatures, and posing a risk of equipment warnings or even shutdown. Utility Model Content

[0005] This utility model proposes a spacer pad for a sulfur dioxide fan cooler. The double positioning structure eliminates the risk of displacement, prevents short circuits in the cooling water, and significantly improves heat exchange efficiency. The combination design of the isosceles trapezoidal groove and the cylindrical positioning pin enhances impact resistance and stability, and reduces the frequency of equipment maintenance.

[0006] This utility model is implemented as follows: a spacer pad for a sulfur dioxide fan cooler, comprising:

[0007] The main crossbeam has positioning structures on both sides and edge arc blocks fixedly connected to both ends of the main crossbeam.

[0008] The first positioning structure is located on one side of the main beam and includes multiple sets of symmetrically distributed positioning slots. Each set of positioning slots is composed of two symmetrical isosceles trapezoids.

[0009] The second positioning structure, located on the other side of the main crossbeam, includes two positioning pins, which are respectively fixedly connected to the back of the two edge arc blocks.

[0010] As a preferred embodiment of the sulfur dioxide fan cooler spacer of this utility model, the number of positioning slots is 3-8, and they are evenly distributed along the length of the main beam.

[0011] As a preferred embodiment of the spacer pad for a sulfur dioxide fan cooler according to this utility model, the isosceles trapezoidal groove of the positioning slot has an inclination angle of 45°~60° and a groove depth of 2~5mm.

[0012] As a preferred embodiment of the spacer pad for a sulfur dioxide fan cooler according to this utility model, the positioning pin has a cylindrical structure with a height of 3~8mm.

[0013] As a preferred embodiment of the spacer pad for a sulfur dioxide fan cooler according to this utility model, the arcuate range of the edge arc block is 90°-120°.

[0014] As a preferred embodiment of the sulfur dioxide fan cooler spacer of this utility model, the main crossbeam, positioning slot, positioning pin and edge arc block are integrally formed structures, and the material is corrosion-resistant engineering plastic or rubber composite material.

[0015] The beneficial effects of this utility model are:

[0016] This invention eliminates the risk of displacement through a dual positioning structure, prevents cooling water short circuits, and significantly improves heat exchange efficiency. The combination design of the isosceles trapezoidal slot and cylindrical positioning pin enhances impact resistance and stability, reduces equipment maintenance frequency, and the arc-shaped edge achieves automatic alignment and sealing, improving installation efficiency. The one-piece molded corrosion-resistant structure is resistant to sulfur dioxide environment erosion, extending the overall life of the cooler and ultimately ensuring the continuous safe operation of the fan bearing, avoiding losses from unplanned downtime. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a rear view structural diagram of the present invention.

[0020] The markings in the diagram are: 1. Main beam; 2. Positioning slot; 3. Edge arc block; 4. Positioning pin. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0022] Please see Figure 1-2 A spacer pad for a sulfur dioxide fan cooler, comprising:

[0023] The main beam 1 has positioning structures on both sides, and edge arc blocks 3 are fixedly connected to both ends of the main beam 1.

[0024] The first positioning structure is located on one side of the main beam 1 and includes multiple sets of symmetrically distributed positioning slots 2. Each set of positioning slots 2 is composed of two symmetrical isosceles trapezoids.

[0025] The second positioning structure is located on the other side of the main beam 1 and includes two positioning pins 4, which are fixedly connected to the back of the two edge arc blocks 3 respectively.

[0026] In this embodiment: the main beam 1 serves as the core support frame, with 3 to 8 sets of symmetrical isosceles trapezoidal positioning slots 2 evenly distributed along its length on one side. When the positioning slots 2 are embedded in the cooler partition plate, a bidirectional wedge-shaped locking force is formed, effectively resisting water pressure impact. On the other side of the main beam 1, two cylindrical positioning pins 4 are vertically fixed to the back of the edge arc blocks 3 connected at both ends. During installation, the pins are precisely inserted into the positioning holes of the water inlet plug to achieve axial secondary locking. The edge arc blocks 3 are tightly attached to the inner wall of the cooler with a curvature of 90°-120°. Under the action of water pressure, they generate radial expansion deformation, automatically compensating for assembly gaps. The main beam 1, positioning slots 2, edge arc blocks 3, and positioning pins 4 are integrally molded from corrosion-resistant engineering plastics or rubber composite materials, which are resistant to high-temperature corrosion environments of 120°C, allowing the spacer pad to maintain structural integrity for a long time in sulfur dioxide medium, completely eliminating the problem of chamber crossflow caused by the displacement of traditional rubber pads.

[0027] As a technical optimization of this utility model, the number of positioning slots 2 is 3-8, and they are evenly distributed along the length direction of the main beam 1.

[0028] In this embodiment, the number of positioning slots 2 is 3-8, and they are evenly distributed along the length of the main beam 1 to enhance the uniformity of lateral force, disperse the impact stress of water flow, and avoid local deformation.

[0029] As a technical optimization of this utility model, the isosceles trapezoidal groove of the positioning slot 2 has an inclination angle of 45°~60° and a groove depth of 2~5mm.

[0030] In this embodiment: the 45°~60° trapezoidal inclined side creates a wedge-shaped locking effect, and the 2~5mm groove depth penetrates the oxide layer of the separator plate, improving adhesion.

[0031] As a technical optimization of this utility model, the positioning pin 4 is a cylindrical structure with a height of 3~8mm.

[0032] In this embodiment, the 3~8mm locating pin 4 is height-matched to the plug thickness to prevent interference fit from causing seal failure.

[0033] As a technical optimization of this utility model, the arcuate range of the edge arc block 3 is 90°-120°.

[0034] In this embodiment: the 90°-120° edge arc block covers the dead zone of the cooler curvature with a radius of 3 arcs, eliminating the sealing blind spot.

[0035] As a technical optimization of this utility model, the main crossbeam 1, positioning slot 2, positioning pin 4 and edge arc block 3 are integrally formed structures, and the material is corrosion-resistant engineering plastic or rubber composite material.

[0036] In this embodiment, the main crossbeam 1, positioning slot 2, edge arc block 3 and positioning pin 4 are integrally molded from corrosion-resistant engineering plastic or rubber composite material, which can withstand high temperature corrosion environment of 120℃, so that the spacer can maintain structural integrity for a long time in sulfur dioxide medium.

[0037] The working principle and usage process of this utility model: Cooling water is injected into the lower chamber from the bottom of the inlet plug. When the water flow impact force acts on the main crossbeam 1, the isosceles trapezoidal inclined surface of the positioning slot 2 generates a reverse component force, locking the partition plate in the contact surface of the groove with a depth of 2-5mm. At the same time, the positioning pin 4 is inserted into the positioning hole of the plug to limit the axial displacement of the spacer pad. The water flow continues to pressurize, causing the edge arc block 3 to undergo elastic deformation of 0.1-0.3mm, tightly fitting and sealing the cooler cylinder wall. The cooling water is forced to flow completely through the U-shaped path of the lower chamber inlet → copper alloy tube bundle → 180° fold back at the far end → upper chamber outlet. During this period, the heat of the lubricating oil is conducted to the cooling water through the tube wall. The double positioning structure ensures that the displacement of the spacer pad is reduced during the operating cycle, maintaining absolute isolation between the upper and lower chambers.

[0038] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A spacer pad for a sulfur dioxide fan cooler, characterized in that: include: The main beam (1) has positioning structures on both sides and edge arc blocks (3) are fixedly connected to both ends of the main beam (1). The first positioning structure is located on one side of the main beam (1) and includes multiple sets of symmetrically distributed positioning slots (2). Each set of positioning slots (2) is composed of two symmetrical isosceles trapezoids. The second positioning structure is located on the other side of the main beam (1) and includes two positioning pins (4), which are respectively fixedly connected to the back of the two edge arc blocks (3).

2. The spacer for a sulfur dioxide fan cooler according to claim 1, characterized in that: The number of positioning slots (2) is 3-8, and they are evenly distributed along the length of the main beam (1).

3. The spacer for a sulfur dioxide fan cooler according to claim 1, characterized in that: The isosceles trapezoidal groove of the positioning slot (2) has an inclination angle of 45°~60° and a groove depth of 2~5mm.

4. The spacer for a sulfur dioxide fan cooler according to claim 1, characterized in that: The positioning pin (4) is a cylindrical structure with a height of 3~8mm.

5. A spacer for a sulfur dioxide fan cooler according to claim 1, characterized in that: The arc range of the edge arc block (3) is 90°-120°.

6. The spacer pad for a sulfur dioxide fan cooler according to claim 1, characterized in that: The main beam (1), positioning slot (2), positioning pin (4) and edge arc block (3) are integrally formed structures, and the material is corrosion-resistant engineering plastic or rubber composite material.

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