Louver for air-cooled heat exchanger

Abstract

The utility model discloses a shutter for an air-cooled heat exchanger, which comprises a window frame, two mounting racks are symmetrically arranged in the middle of the window frame, a shutter assembly is arranged between the mounting racks and the window frame, the shutter assembly comprises shutters, a rotating shaft at one end of each shutter is rotatably connected with the window frame, and a rotating shaft at the other end of each shutter is rotatably connected with the window frame. The rotating shafts at the other ends of the shutters are rotationally connected with the mounting frame, connecting rods are fixed to the ends, penetrating through the mounting frame, of the rotating shafts, moving rods are hinged to the other ends of the connecting rods, and a limiting assembly is arranged between the moving rods on the left side and the right side and limits the moving rods to move in the axial direction of the rotating shafts. The limiting assembly can effectively limit the axial displacement of the moving rod and the operating rod, abrasion caused by shaking in the vibration process is avoided, the service life of equipment is prolonged, the maintenance cost of the equipment is reduced, and the production efficiency of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of louvers, and more specifically to a louver for an air-cooling heat exchanger. Background Art

[0002] Air-cooled heat exchangers use air as a heat transfer medium to reduce the temperature of the fluid through heat exchange between air and fluid. Air-cooled heat exchangers are usually used to cool high-temperature fluids, such as high-temperature gas, high-temperature liquid, etc. Air-cooled heat exchanger shutters are a device used to adjust the air flow rate, usually installed at the inlet and outlet of air-cooled heat exchangers. Shutters are usually made of metal sheets or plastic sheets. They can be opened or closed as needed to control the air flow and flow rate, thereby adjusting the heat exchange effect of the heat exchanger.

[0003] Among them, the louver shaft is the key component required for the rotation of the louver. The louver is connected through various shafts and connecting rods. The louver can be adjusted to various angles through the operating lever to adjust the outlet air volume.

[0004] As the equipment is running, the entire device will vibrate, causing wear between the gap-fitted louvers and the shaft. At the same time, when the operating lever is opened and closed, the louvers are misaligned and the force is uneven, making on-site operation difficult.

[0005] The existing louver shaft (i.e., the moving rod of the present application) is relatively long and is limited by a cotter pin, which causes the louver to be displaced too much in the axial direction of the connecting shaft. When the equipment vibrates, the louver wears and misalignment between the louvers frequently occurs. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a shutter for an air-cooled heat exchanger to solve the problems existing in the above-mentioned background technology.

[0007] The utility model provides the following technical solutions:

[0008] A shutter for an air-cooled heat exchanger comprises a window frame, two mounting frames are symmetrically arranged in the middle of the window frame, a shutter assembly is arranged between the mounting frame and the window frame, the shutter assembly comprises a shutter, a rotating shaft at one end of the shutter is rotatably connected to the window frame, a rotating shaft at the other end of the shutter is rotatably connected to the mounting frame, a connecting rod is fixed to the end of the rotating shaft passing through the mounting frame, a moving rod is hinged at the other end of the connecting rod, a limit assembly is arranged between the moving rods on the left and right sides, and the limit assembly limits the axial movement of the moving rod along the rotating shaft.

[0009] Among them, the limiting assembly includes a limiting bolt, the two ends of the limiting bolt are respectively provided with threads, the moving rod is provided with a screw hole for the limiting bolt to pass through, the limiting bolt is located at the positions on both sides of the moving rod and is respectively provided with a hexagonal nut and a hexagonal locking nut, and the hexagonal locking nut is located at the end of the limiting bolt.

[0010] There are multiple limiter components, which are evenly arranged along the moving rod.

[0011] Among them, 6 shutters are arranged between adjacent limiting components.

[0012] Wherein, the limiting bolt located at the end of the moving rod is connected with an operating rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides a limit assembly between the moving rod on the left and the moving rod on the right. The limit assembly can effectively limit the axial displacement between the moving rod and the operating rod, avoiding shaking during vibration and causing wear, thereby extending the service life of the equipment, reducing the maintenance cost of the equipment, and improving the production efficiency of users. At the same time, the original pin shaft and cotter pin are fixed and adjusted to the limit assembly, and the original clearance fit is adjusted to the interference fit, thereby avoiding the occurrence of uneven force on the shutters when rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the shutter for the hollow cooling heat exchanger of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the limit assembly in the utility model.

[0017] Reference numerals: 1. Window frame, 2. Mounting frame, 3. Shutter, 4. Rotating shaft, 5. Connecting rod, 6. Moving rod, 7. Limit bolt, 8. Thread, 9. Hexagonal nut, 10. Hexagonal locking nut, 11. Operating lever DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The through-hole device for mechanical maintenance involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0019] Reference Figure 1 , Figure 2The present embodiment provides a shutter for an air-cooled heat exchanger, comprising a window frame 1, two mounting frames 2 are symmetrically arranged in the middle of the window frame 1, two groups of shutter assemblies are arranged between the mounting frame 2 and the window frame 1, and the shutter assembly comprises shutters 3, a rotating shaft 4 at one end of the shutter 3 is rotatably connected to the window frame 1, a rotating shaft 4 at the other end of the shutter 3 is rotatably connected to the mounting frame 2, and a connecting rod 5 is fixed to the end of the rotating shaft 4 passing through the mounting frame 2, and a moving rod 6 is hinged at the other end of the connecting rod 5. When the moving rod 6 is moved, the angle of the connecting rod 5 is driven to change. Since the connecting rod 5 is fixedly connected to the rotating shaft 4 of the shutter 3, the shutter 3 is driven to rotate, and the angle of the shutter 3 is adjusted. A limit assembly is arranged between the moving rods 6 on the left and right sides, and the limit assembly limits the axial movement of the moving rod 6 along the rotating shaft 4, and also limits the axial movement of the shutter 3 along the rotating shaft 4.

[0020] The limiting assembly includes a limiting bolt 7, and threads 8 are respectively provided at both ends of the limiting bolt 7. The moving rod 6 is provided with a screw hole for the limiting bolt 7 to pass through. The limiting bolt 7 is respectively provided with a hexagonal nut 9 and a hexagonal locking nut 10 at the positions on both sides of the moving rod 6, and the hexagonal locking nut 10 is located at the end of the limiting bolt 7. The hexagonal nut 9 is in a tightened state, and cooperates with the hexagonal locking nut 10 to fix the limiting bolt 7 and the moving rod 6. Since the threads 8 are respectively provided at both ends of the limiting bolt 7 with a large length, the positions of the hexagonal nut 9 and the hexagonal locking nut 10 threadedly connected with the limiting bolt 7 can also be adjusted, and then the distance between the two moving rods 6 can be adjusted. The limiting bolt 7 can limit the displacement of the axial position of the moving rod 6 to a limited extent, reduce the vibration of the shutter 3 when the shutter rotates, and extend the service life of the shutter.

[0021] Among them, in the present invention, a plurality of limit assemblies can be provided, and they are evenly arranged along the moving rod 6. In this embodiment, six shutters 3 are arranged between adjacent limit assemblies.

[0022] The limiting bolt 7 at the end of the moving rod 6 is connected to the operating rod 11. Pulling the operating rod 11 drives the position of the moving rod 6 to change, thereby driving the louver 3 to rotate and adjust the angle of the louver 3. Since the operating rod 6 is connected to the limiting bolt 7, the limiting assembly limits the axial displacement of the operating rod 6 while limiting the axial displacement of the operating rod, thereby improving the stability of the rotation and operation of the louver.

[0023] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0024] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0025] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A shutter for an air-cooled heat exchanger, comprising a window frame, wherein two mounting frames are symmetrically arranged in the middle of the window frame, and a shutter assembly is arranged between the mounting frames and the window frame, wherein: The shutter assembly includes a shutter, a rotating shaft at one end of the shutter being rotatably connected to the window frame, a rotating shaft at the other end of the shutter being rotatably connected to the mounting frame, and a connecting rod is fixed to the end of the rotating shaft passing through the mounting frame, a moving rod is hinged at the other end of the connecting rod, and a limit assembly is provided between the moving rods on the left and right sides, and the limit assembly limits the axial movement of the moving rod along the rotating shaft.

2. The shutter for an air-cooled heat exchanger according to claim 1, characterized in that: The limiting assembly includes a limiting bolt, and the two ends of the limiting bolt are respectively provided with threads. The moving rod is provided with a screw hole for the limiting bolt to pass through. The limiting bolt is located at positions on both sides of the moving rod and is respectively provided with a hexagonal nut and a hexagonal locking nut, and the hexagonal locking nut is located at the end of the limiting bolt.

3. The shutter for an air-cooled heat exchanger according to claim 2, characterized in that: There are multiple limit assemblies, which are evenly arranged along the moving rod.

4. The shutter for an air-cooled heat exchanger according to claim 3, characterized in that: Six shutters are arranged between adjacent limiting components.

5. The shutter for an air-cooled heat exchanger according to claim 2, characterized in that: The limiting bolt located at the end of the moving rod is connected with an operating rod.

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