A floating coil heat exchanger capable of engaging in butt joint

Abstract

The utility model relates to heat exchanger installation technical field, and the utility model discloses a kind of float coil heat exchanger of engagement butt joint, including fixed frame, the left and right sides of fixed frame upper end are symmetrically provided with mounting frame, and mounting frame inside is provided with hydraulic cavity and is rotatably connected with clamping mechanism by bolt;Hydraulic working device is arranged between two mounting frames, and it is communicated with hydraulic cavity by oil pipe;Clamping mechanism includes clamping support and hydraulic cylinder, and hydraulic cylinder is drivingly connected with clamping support by piston connecting rod, and one end of piston connecting rod extends into hydraulic cavity.The utility model uses the driving mechanism of lever and hydraulic pressure combination, realizes the quick engagement clamping and disassembly of heat exchanger, easy to operate, substantially reduces the requirement of installation to personnel skill and quantity, improves the efficiency of assembly and disassembly.The modular design versatility is strong, can be used as factory standard, also can be used as additional component and be adapted to existing equipment, need not structural change, convenient to maintain and replace, improve the whole life cycle maintenance convenience.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger installation technology, specifically a floating coil heat exchanger that can be snapped together. Background Technology

[0002] A heat exchanger is a device that transfers part of the heat from a hot fluid to a cold fluid. It plays a vital role in many industrial production processes, including chemical, petroleum, power, food, and others. In chemical production, heat exchangers function as heaters, coolers, condensers, evaporators, and reboilers, and are widely used. With technological advancements and social development, a floating coil heat exchanger has emerged to meet user needs. To minimize the impact of thermal expansion and contraction on equipment quality, extend product lifespan, and improve operational stability, metal or rubber sleeves are installed at the perforations in the end baffles to separate the end baffles from the copper tubes. A certain installation allowance is allowed when the copper tubes pass through. This design resembles a coil floating on the end baffles, hence the name "floating coil heat exchanger." Floating coil volumetric heat exchangers are classified as horizontal or vertical based on the tank placement, and as horizontal or vertical based on their arrangement within the heat exchanger. Floating coil heat exchangers are a typical piece of equipment in centralized domestic hot water heating systems in recent years.

[0003] Regarding the aforementioned horizontal floating coil heat exchangers, existing floating coil heat exchangers, when placed directly on the ground during operation, will cause the equipment to tilt, affecting its safety and quality, and thus failing to meet the needs of operators. Equipment with supporting structures typically uses bolt installation to mount the equipment in a suitable position, which generally offers limited installation convenience and reduces the practicality of the floating coil heat exchanger. Existing technologies, such as the technical solution disclosed in patent publication number CN219244395U, provide an installation method for horizontal floating coil heat exchangers. This technical solution utilizes a fixed frame, a fixed arc plate, a mounting bracket, snap-fit ​​holes, a supporting arc plate, a sliding groove, a fixed seat, a pressure plate, a plug rod, a spring, a mounting plate, and positioning holes in combination, thereby enabling quick installation of the heat exchanger. However, the following problems still exist: First, the installation of the mechanism is not automated or convenient enough, and manual assistance is still required for fixing and other actions; second, this type of installation structure requires modifications such as adding lugs to the heat exchanger shell, which greatly reduces its applicability for upgrading existing equipment or for users who want greater flexibility in the design and selection stage, increasing additional costs and complexity; in addition, its mounting bracket does not fully consider the convenience of subsequent maintenance, and cumbersome operations still need to be repeated when the equipment needs to be removed from the bracket.

[0004] In view of this, we propose a snap-fit ​​floating coil heat exchanger. Summary of the Invention

[0005] The purpose of this invention is to provide a snap-fit ​​floating coil heat exchanger to solve the problems mentioned in the background art.

[0006] A snap-fit ​​floating coil heat exchanger includes a fixed frame, a pair of mounting brackets symmetrically arranged on the left and right sides of the upper end of the fixed frame, a hydraulic cavity is opened inside the mounting bracket, and the mounting bracket is rotatably connected to a clamping mechanism through a pin;

[0007] A hydraulic working device is provided between the two mounting brackets, and the hydraulic working device is connected to the hydraulic cavity through an oil pipe.

[0008] The clamping mechanism includes a clamping bracket and a piston rod. One end of the piston rod is rotatably connected to the clamping bracket, and the other end of the piston rod extends into the hydraulic cavity.

[0009] Furthermore, the clamping bracket has an F-shaped structure with a first pin hole in its middle. The clamping bracket is rotatably connected to the mounting bracket through the first pin hole and the pin. The middle bracket of the clamping bracket is located directly below the floating coil heat exchanger.

[0010] Furthermore, the lower part of the clamping bracket is provided with a second pin hole, and the piston connecting rod is rotatably connected to the clamping bracket through the second pin hole and the pin.

[0011] Furthermore, the length of the piston connecting rod is less than half the length of the hydraulic chamber.

[0012] Furthermore, the hydraulic working device is equipped with a hydraulic switch for controlling the working status of the hydraulic pump.

[0013] Furthermore, the upper inner side of the clamping bracket is provided with an arc-shaped clamping surface, the curvature of which is larger than the outer diameter of the outer shell of the floating coil heat exchanger.

[0014] Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model employs a drive mechanism combining levers and hydraulic assistance to achieve rapid clamping after the heat exchanger is placed. The operation of this mechanism is simplified, reducing the traditional multi-person bolt tightening operation to a single person operating the hydraulic switch, thus improving installation efficiency and reducing operation time.

[0017] 2. The locking and connecting mechanism of this utility model is a modular design, which has good versatility and adaptability. This mechanism can be used as a standard configuration of heat exchangers or installed as an add-on component in most existing horizontal floating coil heat exchangers without structural modifications to the equipment body, making it easy to promote and apply.

[0018] 3. The snap-fit ​​connection method of this utility model not only enables quick installation, but also facilitates quick disassembly, which is beneficial for the later maintenance, cleaning and replacement of the heat exchanger, and improves the convenience of maintenance throughout the entire life cycle of the equipment. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the present invention;

[0020] Figure 2 This is a front view of the present invention;

[0021] Figure 3 This is a structural diagram of the clamping state of this utility model;

[0022] Figure 4 This is a side cross-sectional view of the clamped state of this utility model.

[0023] The following are the labels in the diagram: 1. Fixed frame; 2. Mounting frame; 21. Hydraulic cavity; 3. Clamping mechanism; 31. Clamping bracket; 32. Piston connecting rod; 33. First pin hole; 34. Second pin hole; 4. Hydraulic working device; 41. Oil pipe; 42. Hydraulic switch. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" 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 component 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.

[0025] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1-2 This utility model provides a technical solution:

[0028] A floating coil heat exchanger with snap-fit ​​connection includes a fixed frame 1. A pair of mounting brackets 2 are symmetrically arranged on the left and right sides of the upper end of the fixed frame 1. The mounting brackets 2 have a hydraulic cavity 21 inside. The mounting brackets 2 are rotatably connected to the clamping mechanism 3 by a pin. A hydraulic working device 4 is arranged between the two mounting brackets 2. The hydraulic working device 4 is connected to the hydraulic cavity 21 by an oil pipe 41. The clamping mechanism 3 includes a clamping bracket 31 and a piston rod 32. One end of the piston rod 32 is rotatably connected to the clamping bracket 31, and the other end of the piston rod 32 extends into the hydraulic cavity 21.

[0029] The clamping bracket 31 has an F-shaped structure, with a first pin hole 33 in its middle. The clamping bracket 31 is rotatably connected to the mounting bracket 2 through the first pin hole 33 and the pin. The middle bracket of the clamping bracket 31 is located directly below the floating coil heat exchanger. Thus, when the floating coil heat exchanger is hoisted and placed on it, it can be automatically clamped by mechanical principles.

[0030] The lower part of the clamping bracket 31 is provided with a second pin hole 34. The piston connecting rod 32 is rotatably connected to the clamping bracket 31 through the second pin hole 35 and the pin. The length of the piston connecting rod 32 is less than half the length of the hydraulic cavity 21. The hydraulic working device 4 is provided with a hydraulic switch 42 for controlling the working state of the hydraulic pump. Thus, under the adaptive clamping of the machine, an additional layer of hydraulic pressure stabilization clamping safety guarantee is added, improving safety.

[0031] The clamping bracket 31 has an arc-shaped clamping surface on its upper inner side, the curvature of which is larger than the outer diameter of the floating coil heat exchanger shell. This self-centering design allows for compatibility with various floating coil heat exchangers.

[0032] Understandably, in the initial state, the hydraulic working device 4 is not working, there is no pressure in the hydraulic cavity 21, and the piston connecting rod 32 rotates counterclockwise around the pin set in the first pin hole 33 under the action of its own gravity, so that the two upper clamping arms are in the open state.

[0033] During installation, a lifting device is used to hoist the horizontal floating coil heat exchanger to the top of the fixed frame 1, and then it is slowly lowered so that its shell falls smoothly between the arc-shaped clamping surfaces of the left and right clamping brackets 31. This presses down on the bracket set in the middle of the clamping bracket 31, causing it to rotate clockwise around the pin set in the first pin hole 33, thus completing the adaptive clamping action.

[0034] Simultaneously, the operator operates the hydraulic regulating switch 42 on the hydraulic working device 4 to start the hydraulic pump, supplying oil to the rodless chamber of the hydraulic cavity 21. The pressurized oil pushes the piston rod 32 outward. The extension movement of the piston rod 32, through the pin set in the second pin hole 34, rotatably connects and pushes the lower part of the clamping bracket 31, causing it to rotate clockwise around the pin set in the first pin hole 33. Finally, the clamping arms on the two clamping brackets 31 synchronously and smoothly close towards the center until the arc-shaped clamping surfaces on their inner sides tightly and evenly clamp the shell of the heat exchanger. At this time, the horizontal floating coil heat exchanger, under the adaptive clamping force and the pressure-holding clamping of the hydraulic system, ensures the continuous and reliable clamping force, guaranteeing subsequent safety.

[0035] During disassembly and maintenance, it is only necessary to switch the oil circuit by hydraulic regulating switch 42 to allow pressurized oil to enter the rod chamber of hydraulic chamber 21. The piston connecting rod 32 retracts, which can drive the clamping bracket 31 to loosen, thereby lifting the horizontal floating coil heat exchanger away. The process is simple and quick.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A floating coil heat exchanger that can be snapped together, characterized in that, Includes a fixed frame (1), on which a pair of mounting frames (2) are symmetrically arranged on the left and right sides of the upper end of the fixed frame (1), and a hydraulic cavity (21) is opened inside the mounting frame (2). The mounting frame (2) is rotatably connected to the clamping mechanism (3) by a pin. A hydraulic working device (4) is provided between the two mounting brackets (2), and the hydraulic working device (4) is connected to the hydraulic cavity (21) through an oil pipe (41); The clamping mechanism (3) includes a clamping bracket (31) and a piston rod (32). One end of the piston rod (32) is rotatably connected to the clamping bracket (31), and the other end of the piston rod (32) extends into the hydraulic cavity (21).

2. The floating coil heat exchanger with interlocking connection according to claim 1, characterized in that, The clamping bracket (31) has an F-shaped structure, with a first pin hole (33) in the middle. The clamping bracket (31) is rotatably connected to the mounting bracket (2) through the first pin hole (33) and the pin. The middle bracket of the clamping bracket (31) is located directly below the floating coil heat exchanger.

3. A snap-fit ​​floating coil heat exchanger according to claim 2, characterized in that, The lower part of the clamping bracket (31) is provided with a second pin hole (34), and the piston rod (32) is rotatably connected to the clamping bracket (31) through the second pin hole (34) and the pin.

4. A snap-fit ​​floating coil heat exchanger according to claim 1, characterized in that, The length of the piston connecting rod (32) is less than half the length of the hydraulic cavity (21).

5. A snap-fit ​​floating coil heat exchanger according to claim 1, characterized in that, The hydraulic working device (4) is equipped with a hydraulic switch (42) for controlling the working state of the hydraulic pump.

6. A snap-fit ​​floating coil heat exchanger according to any one of claims 1 to 5, characterized in that, The upper inner side of the clamping bracket (31) is provided with an arc-shaped clamping surface, the curvature of which is larger than the outer diameter of the outer shell of the floating coil heat exchanger.

Images