Flow-adjustable heat exchanger

Abstract

The utility model relates to the field of heat exchangers, in particular to a flow-adjustable heat exchanger. The heat exchanger comprises a flow adjusting sleeve, a medium inlet connector, a first three-way valve, a second three-way valve, a spiral heat exchange pipe, an auxiliary heat exchange pipe and a medium outlet connector. The flow adjusting sleeve comprises an outer pipe, an inner pipe and a flow adjusting assembly, wherein the inner pipe is fixedly arranged in the outer pipe in a sleeved mode and is concentric with the outer pipe, and the flow adjusting assembly movably penetrates through the inner side and the outer side of the outer pipe and the inner side of the inner pipe. The flow adjusting assembly comprises semicircular blocking pore plates symmetrically arranged on the left side and the right side of the inner pipe in a penetrating mode and capable of being spliced into a complete circle and telescopic electric cylinders arranged on the outer sides of the blocking pore plates respectively and used for controlling the blocking pore plates to move. According to the heat exchanger capable of adjusting the flow, the heat exchange effect of the heat exchanger is flexibly adjusted through multiple adjusting means, so that multiple use requirements of users are met, and the practicability of the heat exchanger is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchangers, and more particularly to a heat exchanger with adjustable flow rate. Background Technology

[0002] A heat exchanger is a device that transfers some of the heat from a hot fluid to a cold fluid. Heat exchangers play a vital role in chemical, petroleum, power, food, and many other industrial production processes. In chemical production, heat exchangers are widely used as heaters, coolers, condensers, evaporators, and reboilers. The efficiency of a heat exchanger is related to the medium, inlet and outlet flow velocities, heat exchange tube specifications, heat exchange area, heat exchange tube arrangement, inlet and outlet positions, fluid shape, inlet and outlet temperatures and pressures, heat exchange tube material, and flow area.

[0003] Existing heat exchangers have fixed pipe diameters and pipe paths. The flow rate and heat exchange effect can usually only be adjusted by regulating the water valve (i.e., the inlet flow rate) or by replacing the heat exchanger pipes. The effect is limited, and the means of adjusting the flow rate are singular and the operation is cumbersome.

[0004] Therefore, how to design an adjustable flow heat exchanger that can solve the above-mentioned technical problems is a technical problem that needs to be solved. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide an adjustable flow rate heat exchanger, which allows for flexible adjustment of the heat exchange effect through various means, thereby meeting diverse user needs and increasing the practicality of the heat exchanger.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: It includes a flow regulating sleeve, a medium inlet interface, a first three-way valve, a second three-way valve, a spiral heat exchange tube, an auxiliary heat exchange tube, and a medium outlet interface; the first three-way valve includes a first interface, a second interface, and a third interface; the second three-way valve includes a first port, a second port, and a third port; one end of the flow regulating sleeve is connected to the medium inlet interface, and the other end is connected to the first port of the first three-way valve; one end of the auxiliary heat exchange tube is connected to the second port of the first three-way valve, and the other end is connected to the second port of the second three-way valve. The spiral heat exchange tube is connected to the third port of the first three-way valve at one end and to the third port of the second three-way valve at the other end. The medium outlet port is connected to the first port of the second three-way valve. The flow regulating sleeve includes an outer tube, an inner tube fixedly sleeved inside the outer tube and concentrically arranged with the outer tube, and a flow regulating assembly that is movably inserted through the outer tube and the inner tube on both sides. The flow regulating assembly includes a semi-circular barrier plate symmetrically inserted through the left and right sides of the inner tube and capable of forming a complete circle, and telescopic electric cylinders respectively located on the outside of the barrier plate to control the movement of the barrier plate.

[0007] Furthermore, the spiral heat exchange tube is spirally coiled five times.

[0008] Furthermore, the diameter of the auxiliary heat exchange tube is smaller than that of the spiral heat exchange tube.

[0009] Furthermore, the outer diameter of the semi-circular barrier plate is the same as the inner diameter of the inner tube.

[0010] Furthermore, sealing strips are symmetrically provided on the opposite end faces of the barrier plate.

[0011] Furthermore, the flow regulating sleeve, medium inlet interface, first three-way valve, second three-way valve, spiral heat exchange tube, auxiliary heat exchange tube, and medium outlet interface are all connected by a sealing flange.

[0012] This utility model has the following beneficial effects:

[0013] 1- This utility model sets a flow regulating component on the flow regulating sleeve, and drives the semi-circular baffles to approach and close each other through the telescopic electric cylinder, so that the baffles close to form a complete circle that matches the shape and size of the inner tube, thereby blocking the flow of the inner tube, reducing the volumetric flow rate of the medium and the cross-sectional area of ​​the pipe, and thus adjusting its flow velocity to adjust the heat exchange effect.

[0014] 2- This utility model is equipped with a spiral heat exchange tube, an auxiliary heat exchange tube, a first three-way valve, and a second three-way valve. As needed, the first three-way valve and the second three-way valve are rotated to connect the flow regulating sleeve with the spiral heat exchange tube or the auxiliary heat exchange tube. Since the path and diameter of the auxiliary heat exchange tube are smaller than those of the spiral heat exchange tube, the flow rate can be adjusted to regulate the heat exchange effect.

[0015] 3- The present invention provides a variety of methods for controlling flow rate, which are widely applicable and highly flexible.

[0016] Figure 1 This is a front view of the present utility model;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 This is a schematic diagram of the longitudinal section of the flow regulating sleeve of this utility model. Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the longitudinal section of the flow regulating sleeve of this utility model. Figure 2 .

[0020] Explanation of reference numerals in the attached figures:

[0021] 1-Flow regulating sleeve, 11-Outer pipe, 12-Inner pipe, 13-Flow regulating assembly, 131-Semi-circular baffle, 132-Telescopic electric cylinder, 133-Sealing strip;

[0022] 2-Media inlet interface;

[0023] 3-First three-way valve, 31-First port, 32-Second port, 33-Third port;

[0024] 4-Second three-way valve, 41-First port, 42-Second port, 43-Third port;

[0025] 5- Spiral heat exchange tube;

[0026] 6-Auxiliary heat exchange tubes;

[0027] 7-Media outlet interface. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0029] See Figure 1-4 As shown, the scheme includes a flow regulating sleeve 1, a medium inlet interface 2, a first three-way valve 3, a second three-way valve 4, a spiral heat exchange tube 5, an auxiliary heat exchange tube 6, and a medium outlet interface 7.

[0030] The first three-way valve 3 includes a first port 31, a second port 32, and a third port 33; the second three-way valve 4 includes a first port 41, a second port 42, and a third port 43; one end of the flow regulating sleeve 1 is connected to the medium inlet port 2, and the other end is connected to the first port 31 of the first three-way valve 3; one end of the auxiliary heat exchange tube 6 is connected to the second port 32 of the first three-way valve 3, and the other end is connected to the second port 42 of the second three-way valve 4; one end of the spiral heat exchange tube 5 is connected to the third port 33 of the first three-way valve 3, and the other end is connected to the third port 43 of the second three-way valve 4; the medium outlet port 7 is connected to the first port 41 of the second three-way valve 4.

[0031] The flow regulating sleeve 1 includes an outer tube 11, an inner tube 12 fixedly sleeved inside the outer tube 11 and concentrically arranged with the outer tube 11, and a flow regulating assembly 13 movably passing through the inner and outer sides of the outer tube 11 and the inner tube 12; preferably, the flow regulating assembly 13 is located near the medium inlet interface 2. The flow regulating assembly 13 includes semi-circular baffles 131 symmetrically arranged on the left and right sides of the inner tube 12 and capable of forming a complete circle, and telescopic electric cylinders 132 respectively located on the outside of the semi-circular baffles 131 to control the movement of the semi-circular baffles 131. Further, the outer diameter of the semi-circular baffles 131 is the same as the inner diameter of the inner tube 12. By using the telescopic electric cylinders 132, the two semi-circular baffles 131 are brought closer to each other until the two semi-circular baffles 131 are assembled into a complete circle that matches the shape and size of the inner tube 12 to block the flow of the inner tube 12, thereby achieving the purpose of controlling the flow.

[0032] The spiral heat exchange tube 5 is spirally coiled five times. In this embodiment, the number of spiral coils is set to 5, but it is not limited to this. In other embodiments, the spiral heat exchange tube 5 can be coiled with different numbers of turns to adjust the footprint of this embodiment.

[0033] Furthermore, the diameter of the auxiliary heat exchange tube 6 is smaller than the diameter of the spiral heat exchange tube 5.

[0034] To enhance sealing, in this embodiment, sealing strips 133 are symmetrically provided on the end faces of the semi-circular baffle 131 on opposite sides. Furthermore, the flow regulating sleeve 1, medium inlet interface 2, first three-way valve 3, second three-way valve 4, spiral heat exchange tube 5, auxiliary heat exchange tube 6, and medium outlet interface 7 are all connected by sealing flanges.

[0035] The working principle is roughly as follows:

[0036] During use, when the user needs the heat exchange effect under normal conditions, the telescopic electric cylinder 132 is controlled to separate the two semi-circular baffles, and the first three-way valve 3 and the second three-way valve 4 are rotated to connect the medium inlet interface 2, the flow regulating sleeve 1, the spiral heat exchange tube 5 and the medium outlet interface 7.

[0037] When the user needs to adjust the heat exchange effect, the telescopic electric cylinder 132 is controlled to make the two semi-circular baffles on both sides fit together, blocking the inner tube 12, so that the medium can only flow between the inner tube 12 and the outer tube 11, reducing the volumetric flow rate and the pipe cross-sectional area, thereby reducing the flow velocity and achieving flow control; on the other hand, the first three-way valve 3 and the second three-way valve 4 are rotated to connect the medium inlet interface 2, the flow regulating sleeve 1, the auxiliary heat exchange tube 6 and the medium outlet interface 7, thereby reducing the heat transfer area by reducing the heat exchange tube path and the heat exchange tube diameter, so as to achieve heat transfer control.

[0038] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flow adjustable heat exchanger, characterized by: The device comprises a flow regulating sleeve (1), a medium inlet interface (2), a first three-way valve (3), a second three-way valve (4), a spiral heat exchange pipe (5), an auxiliary heat exchange pipe (6) and a medium outlet interface (7). The first three-way valve (3) comprises a first interface (31), a second interface (32) and a third interface (33); the second three-way valve (4) comprises a first port (41), a second port (42) and a third port (43); the flow regulating sleeve (1) is in communication with the medium inlet interface (2) at one end and in communication with the first interface (31) of the first three-way valve (3) at the other end; the auxiliary heat exchange pipe (6) is in communication with the second interface (32) of the first three-way valve (3) at one end and in communication with the second port (42) of the second three-way valve (4) at the other end; the spiral heat exchange pipe (5) is in communication with the third interface (33) of the first three-way valve (3) at one end and in communication with the third port (43) of the second three-way valve (4) at the other end; the medium outlet interface (7) is in communication with the first port (41) of the second three-way valve (4). The flow regulating sleeve (1) comprises an outer pipe (11), an inner pipe (12) fixedly sleeved in the outer pipe (11) and arranged concentrically with the outer pipe (11), and a flow regulating assembly (13) movably sleeved in the outer pipe (11) and the inner pipe (12); the flow regulating assembly (13) comprises a semicircular blocking baffle (131) symmetrically sleeved in the left and right sides of the inner pipe (12) and capable of being combined into a complete circle, and telescopic electric cylinders (132) respectively arranged outside the semicircular blocking baffle (131) to control the movement of the semicircular blocking baffle (131).

2. The heat exchanger of claim 1, wherein: The spiral heat exchange pipe (5) is spirally coiled five times.

3. The heat exchanger of claim 1, wherein: The diameter of the auxiliary heat exchange pipe (6) is smaller than that of the spiral heat exchange pipe (5).

4. The heat exchanger of claim 1, wherein: The outer diameter of the semicircular blocking baffle (131) is the same as the inner diameter of the inner pipe (12).

5. The heat exchanger of claim 1, wherein: Sealing rubber strips (133) are symmetrically arranged on the end faces of the opposite sides of the semicircular blocking baffle (131).

6. The heat exchanger of claim 1, wherein: The flow regulating sleeve (1), the medium inlet interface (2), the first three-way valve (3), the second three-way valve (4), the spiral heat exchange pipe (5), the auxiliary heat exchange pipe (6) and the medium outlet interface (7) are all sealed and connected through connecting flanges.

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