A plate-fin spray cooling heat exchanger with a transverse jet array

Abstract

The present invention belongs to the technical field of heat exchangers, and specifically relates to a plate-fin spray cooling heat exchanger with a transverse spray array. The heat exchanger adopts a split modular design and consists of a plate-fin heat exchanger and two spray devices. The plate-fin heat exchanger is an integrated compact structure, and there are two spray devices, which are arranged symmetrically on both sides of the plate-fin heat exchanger. The liquid chamber of the spray device is connected to the nozzle array panel by flange bolts; the installation site of the direct-injection nozzle and the nozzle array panel is connected by threads. By changing the nozzle parameters and the injection point of the closed part, the nozzle arrangement pattern can be adjusted. By adjusting the extrusion air supply pressure to control the liquid flow rate and the upstream pressure of the nozzle, flexible regulation of the liquid mist parameters according to actual heat dissipation needs can be achieved. The plate-fin spray cooling heat exchanger of the present invention can significantly improve the heat exchange efficiency of the heat exchanger, reduce the volume and weight of the heat exchanger, and the heat exchange enhancement can be adjusted according to actual needs, and has a wider application space.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchangers, and in particular relates to a plate-fin type spray cooling heat exchanger with a transverse spray array. Background Art

[0002] A heat exchanger is a device that controls the temperature of a fluid by exchanging heat between hot and cold fluids. In a traditional heat exchanger, such as a plate-fin heat exchanger, the fluid exchanges heat through the wall during the flow process, resulting in low heat exchange efficiency, which leads to large size, high material consumption, and high cost of the heat exchanger. With the rapid development of the field of energy technology, the heat source has a higher calorific value, more complex shape, and more varied distribution (such as electronic equipment, aerospace vehicles, etc.), which poses higher challenges to reducing the size and weight of the heat exchanger and improving the heat dissipation capacity.

[0003] Spray cooling belongs to the category of two-phase fluid cooling. The atomized droplets formed by the spray impact the heat exchange surface to form a liquid film, which enhances the heat exchange process through convection and evaporation. It has the advantages of high heat dissipation capacity, low temperature difference between the surface and the working fluid, and low cooling fluid flow. Under small temperature difference conditions, the heat transfer coefficient it provides can reach 100~1000W / cm 2 . Summary of the Invention

[0004] (1) Technical issues to be solved

[0005] The technical problem to be solved by the present invention is: how to solve the problems of low heat exchange capacity, large volume and weight, and high cost of traditional plate-fin heat exchangers.

[0006] (2) Technical solution

[0007] To solve the above technical problems, the present invention provides a plate-fin spray cooling heat exchanger with a transverse spray array, the plate-fin spray cooling heat exchanger comprising: a plate-fin heat exchanger and two spray devices symmetrically disposed on both sides of the plate-fin heat exchanger;

[0008] The plate-fin heat exchanger adopts an integrated compact structure, including a core, a shell, and a waterway joint, wherein the core is arranged inside the shell, and the waterway joint is arranged on the shell;

[0009] The two spray devices both adopt a split structure, and both include a liquid chamber and a nozzle array panel;

[0010] The liquid chamber comprises a liquid chamber wall, a liquid chamber partition, a liquid filling port / pressure relief port, a pressure gas pipeline connection port, and a liquid chamber mounting flange. The liquid filling port / pressure relief port and the pressure gas pipeline connection port are respectively connected to the opening of the liquid chamber wall by welding, and the liquid chamber mounting flange and the liquid chamber partition are respectively connected to the open edge of the liquid chamber wall by welding, thereby forming a liquid chamber with liquid filling, pressure relief, and extrusion-type liquid supply functions.

[0011] The nozzle array panel includes: a nozzle panel wall, nozzle sites, a nozzle panel mounting flange, a direct-injection nozzle, a plug, and a sealing gasket; the nozzle sites are threaded through holes arranged according to a specific pattern on the nozzle panel wall; the direct-injection nozzle and the plug are connected to the nozzle sites of the nozzle array panel by threading, and the nozzle panel mounting flange is connected to the nozzle panel wall by welding;

[0012] The liquid holding chamber mounting flange and the nozzle panel mounting flange correspond to form a mounting flange surface. The liquid holding chamber and the nozzle array panel are in contact through the mounting flange surface and are fastened with bolts and nuts. A sealing gasket is arranged between the flange contact surfaces to form the entire spray device.

[0013] Among them, some nozzle sites are closed with plugs according to actual needs.

[0014] Wherein, in the plate-fin heat exchanger, the core and the shell are connected by welding, and the water channel joint and the shell are connected by bolts.

[0015] The liquid chamber partition separates the liquid in the liquid chamber, ensuring that sufficient liquid is supplied to nozzles at different heights, thereby improving the utilization rate of the liquid in the liquid chamber.

[0016] Among them, the plate-fin heat exchanger has a fin thickness of 0.15 to 0.2 mm, a fin spacing of 1.5 to 2 mm, a fin height of 7 to 7.5 mm, a partition thickness of 0.5 to 0.6 mm, and a channel number of 25 to 35. The plate-fin heat exchanger design not only has suitable heat exchange performance and processing difficulty, but also has little obstruction and interference with liquid spray, which is conducive to the heat exchange enhancement effect of spray cooling on the plate-fin heat exchanger.

[0017] The diameter of the liquid filling port of the liquid chamber of the spray device is DN40, and the port is welded to the opening at the top of the liquid chamber.

[0018] Among them, the pressure gas cylinder, pressure reducing valve, gas circuit shut-off valve, and pressure gas pipeline connection ports of the liquid chamber are all connected to the various sections of the gas pipeline through metal quick connectors. In actual use, open the pressure gas cylinder, adjust the downstream pressure to the appropriate pressure through the pressure reducing valve, open the gas circuit shut-off valve, and the pressure gas enters the liquid chamber through the pressure gas pipeline connection port, squeezing the liquid inside the chamber through the nozzle and spraying it out in the form of liquid mist.

[0019] Among them, the upstream of the liquid adding pipeline is connected to the liquid source, the liquid adding pipeline and the DN40 specification release ball valve combination are connected by threaded hole-bolt method, the liquid adding pipeline and the liquid adding port / pressure relief port are connected by a quick connector, and the use of the release ball valve combination can realize the rapid connection and disassembly of the liquid adding pipeline. After the liquid adding is completed, the release ball valve combination is closed and disconnected to complete the sealing of the pipeline, thereby improving the utilization efficiency.

[0020] The wall thickness of the liquid chamber and the nozzle array panel of the spray device is 4-8 mm, and the air pressure in the chamber is 0.5-1 MPa, so as to maintain good sealing and safety of the liquid chamber under pressurized conditions.

[0021] Among them, the center spacing of the nozzle sites arranged on the nozzle array panel of the spray device is 50 to 100 mm, the straight nozzle is threadedly connected to the threaded hole of the nozzle site (threaded hole diameter M5), the nozzle hole diameter is 0.1 to 0.3 mm, the injection direction and the airflow direction include an angle of 60° to 120°, and the injection pressure is 0.5 to 1 MPa, so as to change the flow rate, initial velocity and movement trajectory of the injection liquid, improve the liquid mist characteristics reaching the wall of the heat exchanger channel, and achieve the effect of improving the heat exchange capacity according to actual conditions.

[0022] (3) Beneficial effects

[0023] In response to the problems of the existing technology, the present invention adopts a combination of a spray device and a plate-fin heat exchanger, and uses the spray device to evenly spray fine liquid mist onto the wall of the heat exchanger. A liquid filling port / pressure relief port and a pressure gas pipeline connection port are arranged on the top of the liquid chamber of the spray device, and a replaceable nozzle array panel is installed on the side, and pressure gas is used for extrusion liquid supply and injection. The present invention effectively improves the heat dissipation capacity of the heat exchanger and reduces the volume of the radiator. The nozzle array panel is customized according to the heat exchange demand and assembled according to specifications, which can simplify the update process and reduce the iteration cost. The spray device with a liquid chamber can work without a liquid source and is highly flexible.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The spray cooling method is adopted, which utilizes the evaporation of liquid mist and the convection heat transfer of liquid on the surface of the heat exchanger channel to improve the heat transfer capacity of the plate-fin heat exchanger, which is beneficial to reducing the volume, weight and material consumption of the heat exchanger and expanding the scope of use of traditional heat exchangers;

[0026] (2) The spray device adopts a split design. The nozzle positions of the nozzle array panel can be combined and arranged in a flexible manner, which can be adjusted according to the actual size structure and heat dissipation requirements of the heat exchanger. The direct nozzle is connected to the nozzle position of the nozzle array panel through a thread. The nozzle (such as the injection aperture, spray angle, etc.) can be flexibly replaced to adjust the liquid mist distribution law, which is suitable for various application scenarios;

[0027] (3) The present invention has a simple structure, and the nozzle array panel and the liquid chamber of the spray device are connected by flanges, which is easy to process and install, effectively reducing the cost of updates and iterations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a schematic structural diagram of a plate-fin heat exchanger and a spray device combination according to the present invention, wherein FIG1(a) is a front view and FIG1(b) is a top view;

[0029] Figure 2 Schematic diagram of the structure of the spray device of the present invention;

[0030] Figure 3 Schematic diagram of the structure of the liquid chamber of the present invention;

[0031] Figure 4 is a schematic structural diagram of the nozzle array panel of the present invention;

[0032] Figure 5 Schematic diagram of the connection of the liquid and gas circuits of the spray device of the present invention.

[0033] In the figure: 1-1 is a plate-fin heat exchanger, 1-2 is a spray device, 2-1 is a liquid chamber, 2-2 is a nozzle array panel, 2-3 is a gasket, 2-4 is a base, 3-1 is a liquid chamber wall, 3-2 is a liquid chamber mounting flange, 3-3 is a liquid chamber partition, 3-4 is a pressure gas pipeline connection port, 3-5 is a liquid filling port / pressure relief port, 4-1 is a nozzle panel wall, 4-2 is a nozzle position, 4-3 is a nozzle panel mounting flange, 5-1 is a pressure gas cylinder, 5-2 is a pressure reducing valve, 5-3 is a gas circuit stop valve, 5-4 is a gas pipeline, 5-5 is a liquid filling pipeline, 5-6 is a release ball valve assembly, and 5-7 is a quick connector. DETAILED DESCRIPTION

[0034] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below with reference to the accompanying drawings and examples.

[0035] To address the low heat transfer capacity, large size and weight, and high cost of traditional plate-fin heat exchangers, the present invention proposes a plate-fin spray cooling heat exchanger design with a transverse spray array. The spray array comprises direct-injection nozzles regularly mounted on a panel. By adjusting the nozzle arrangement (position, spacing, aperture, etc.), the liquid mist parameters can be flexibly controlled according to actual heat dissipation needs. The nozzle array panel is connected to the liquid chamber via a mounting flange to form a closed spray device. The nozzle array panel can be designed, processed, and replaced according to usage requirements, which helps control update and iteration costs. The top of the spray device is equipped with a liquid filling port / pressure relief port and a gas pipeline interface, using pressurized gas for extrusion liquid injection. The liquid flow rate and nozzle upstream pressure are controlled by adjusting the pressure reducing valve of the pressurized gas pipeline.

[0036] Specifically, to solve the above technical problems, the present invention provides a plate-fin spray cooling heat exchanger with a transverse spray array, the plate-fin spray cooling heat exchanger comprising: a plate-fin heat exchanger and two spray devices symmetrically disposed on both sides of the plate-fin heat exchanger;

[0037] The plate-fin heat exchanger adopts an integrated compact structure, including a core, a shell, and a waterway joint, wherein the core is arranged inside the shell, and the waterway joint is arranged on the shell;

[0038] The two spray devices both adopt a split structure, and both include a liquid chamber and a nozzle array panel;

[0039] The liquid chamber comprises a liquid chamber wall, a liquid chamber partition, a liquid filling port / pressure relief port, a pressure gas pipeline connection port, and a liquid chamber mounting flange. The liquid filling port / pressure relief port and the pressure gas pipeline connection port are respectively connected to the opening of the liquid chamber wall by welding, and the liquid chamber mounting flange and the liquid chamber partition are respectively connected to the open edge of the liquid chamber wall by welding, thereby forming a liquid chamber with liquid filling, pressure relief, and extrusion-type liquid supply functions.

[0040] The nozzle array panel includes: a nozzle panel wall, nozzle sites, a nozzle panel mounting flange, a direct-injection nozzle, a plug, and a sealing gasket; the nozzle sites are threaded through holes arranged according to a specific pattern on the nozzle panel wall; the direct-injection nozzle and the plug are connected to the nozzle sites of the nozzle array panel by threading, and the nozzle panel mounting flange is connected to the nozzle panel wall by welding;

[0041] The liquid holding chamber mounting flange and the nozzle panel mounting flange correspond to form a mounting flange surface. The liquid holding chamber and the nozzle array panel are in contact through the mounting flange surface and are fastened with bolts and nuts. A sealing gasket is arranged between the flange contact surfaces to form the entire spray device.

[0042] Among them, some nozzle sites are closed with plugs according to actual needs.

[0043] Wherein, in the plate-fin heat exchanger, the core and the shell are connected by welding, and the water channel joint and the shell are connected by bolts.

[0044] The liquid chamber partition separates the liquid in the liquid chamber, ensuring that sufficient liquid is supplied to nozzles at different heights, thereby improving the utilization rate of the liquid in the liquid chamber.

[0045] Among them, the plate-fin heat exchanger has a fin thickness of 0.15 to 0.2 mm, a fin spacing of 1.5 to 2 mm, a fin height of 7 to 7.5 mm, a partition thickness of 0.5 to 0.6 mm, and a channel number of 25 to 35. The plate-fin heat exchanger design not only has suitable heat exchange performance and processing difficulty, but also has little obstruction and interference with liquid spray, which is conducive to the heat exchange enhancement effect of spray cooling on the plate-fin heat exchanger.

[0046] The diameter of the liquid filling port of the liquid chamber of the spray device is DN40, and the port is welded to the opening at the top of the liquid chamber.

[0047] Among them, the pressure gas cylinder, pressure reducing valve, gas circuit shut-off valve, and pressure gas pipeline connection ports of the liquid chamber are all connected to the various sections of the gas pipeline through metal quick connectors. In actual use, open the pressure gas cylinder, adjust the downstream pressure to the appropriate pressure through the pressure reducing valve, open the gas circuit shut-off valve, and the pressure gas enters the liquid chamber through the pressure gas pipeline connection port, squeezing the liquid inside the chamber through the nozzle and spraying it out in the form of liquid mist.

[0048] Among them, the upstream of the liquid adding pipeline is connected to the liquid source, the liquid adding pipeline and the DN40 specification release ball valve combination are connected by threaded hole-bolt method, the liquid adding pipeline and the liquid adding port / pressure relief port are connected by a quick connector, and the use of the release ball valve combination can realize the rapid connection and disassembly of the liquid adding pipeline. After the liquid adding is completed, the release ball valve combination is closed and disconnected to complete the sealing of the pipeline, thereby improving the utilization efficiency.

[0049] The wall thickness of the liquid chamber and the nozzle array panel of the spray device is 4-8 mm, and the air pressure in the chamber is 0.5-1 MPa, so as to maintain good sealing and safety of the liquid chamber under pressurized conditions.

[0050] Among them, the center spacing of the nozzle sites arranged on the nozzle array panel of the spray device is 50 to 100 mm, the straight nozzle is threadedly connected to the threaded hole of the nozzle site (threaded hole diameter M5), the nozzle hole diameter is 0.1 to 0.3 mm, the injection direction and the airflow direction include an angle of 60° to 120°, and the injection pressure is 0.5 to 1 MPa, so as to change the flow rate, initial velocity and movement trajectory of the injection liquid, improve the liquid mist characteristics reaching the wall of the heat exchanger channel, and achieve the effect of improving the heat exchange capacity according to actual conditions.

[0051] Example 1

[0052] As shown in Figures 1(a) and 1(b), a plate-fin spray cooling heat exchanger with a transverse spray array is provided in an embodiment of the present invention. The plate-fin heat exchanger adopts an integrated compact structure, and two spray devices are symmetrically arranged on both sides of the plate-fin heat exchanger using a split structure. The plate-fin spray cooling heat exchanger mainly consists of a plate-fin heat exchanger 1-1 and two spray devices 1-2 on both sides. Among them, the plate-fin heat exchanger 1-1 consists of a core, an outer shell, and a waterway joint. The core and the outer shell are connected by welding, and the waterway joint and the outer shell are connected by bolts. The air-side fin thickness of the plate-fin heat exchanger is 0.15-0.2mm, the fin spacing is 1.5-2mm, and the fin height is 7-7.5mm. The water-side fin thickness is 0.2-0.25mm, the fin spacing is 5-5.5mm, the fin height is 2-2.25mm, and the partition thickness is 0.5-0.6mm, so as to increase the equivalent heat exchange area of the heat exchanger and improve the heat exchange effect.

[0053] like Figure 2 As shown, the spray device 1-2 includes a liquid chamber 2-1, a nozzle array panel 2-2, a gasket 2-3, and a base 2-4. The gasket 2-3 is placed between the liquid chamber 2-1 and the mounting flange of the nozzle array panel 2-2. The two are fastened together using bolts and nuts to form a closed structure that contains liquid. The base 2-4 is welded to the bottom of the liquid chamber 2-1.

[0054] like Figure 3 As shown, the liquid chamber mounting flange 3-2, liquid chamber partition 3-3, pressure gas pipeline connection port 3-4, and liquid filling port / pressure relief port 3-5 are all welded to the liquid chamber wall 3-1 to form the liquid chamber. The thickness of the liquid chamber wall 3-1 is 4 to 8 mm, sufficient to withstand the 0.5 to 1 MPa pressure required for extrusion-type liquid injection. The liquid chamber partition 3-3 separates the liquid in the chamber, ensuring sufficient liquid supply to nozzles at different heights and improving liquid utilization within the chamber. The pressure gas pipeline connection port 3-4 has an inner diameter of 4 to 6 mm, and the liquid filling port 3-5 has a diameter of DN40, enabling efficient liquid filling.

[0055] like Figure 4 As shown, the nozzle panel wall 4-1 and the nozzle panel mounting flange 4-3 are connected by welding, the nozzle position 4-2 is a threaded through hole (aperture M5) on the nozzle panel wall 4-1, and the nozzle is installed in the threaded through hole of the nozzle position 4-2 by threaded connection. The center spacing of the nozzle position 4-2 is 50 to 100 mm, which can be adjusted according to different application conditions. A plug can also be installed at a part of the nozzle position 4-2. The nozzle panel mounting flange 4-3 and the liquid chamber mounting flange 3-2 are connected by bolt-nut fastening. The interchangeability of the nozzle array panel and the nozzle realizes the change of the nozzle arrangement and the liquid mist characteristic law, and has a high degree of flexibility in adjustment according to application conditions.

[0056] like Figure 5 As shown, the pressure gas cylinder 5-1, the pressure reducing valve 5-2, the gas circuit stop valve 5-3, and the pressure gas pipeline connection port 3-4 of the liquid storage chamber are all connected to the various sections of the gas pipeline 5-4 through metal quick connectors. In actual use, the pressure gas cylinder 5-1 is opened, the downstream pressure is adjusted to an appropriate pressure through the pressure reducing valve 5-2, and the gas circuit stop valve 5-3 is opened. The pressure gas enters the liquid storage chamber through the pressure gas pipeline connection port 3-4, squeezes the liquid inside the storage chamber through the nozzle, and is sprayed out in the form of liquid mist; the upstream of the liquid adding pipeline 5-5 is connected to the liquid source, and the liquid adding pipeline 5-5 and the release ball valve combination 5-6 adopt a threaded hole-bolt connection method. The liquid adding pipeline 5-5 is connected to the liquid adding port / pressure relief port 3-5 through a quick connector 5-7. The use of the release ball valve combination 5-6 can realize the quick connection and disassembly of the liquid adding pipeline. After the liquid adding is completed, the ball valve combination is closed and disconnected, that is, the pipeline is sealed, which improves the use efficiency.

[0057] Example 2

[0058] This embodiment provides a plate-fin spray cooling heat exchanger design with a transverse spray array. The spray device adopts a split structure, with a total of two, symmetrically arranged on both sides of the plate-fin heat exchanger; the plate-fin heat exchanger adopts an integrated compact structure. The spray device consists of a liquid chamber, a nozzle array panel, a liquid filling port / pressure relief port, a liquid filling pipeline, a pressure gas pipeline interface, a direct-injection nozzle, a plug, and a sealing gasket; the liquid chamber and the nozzle array panel are fastened together by bolts and nuts of the mounting flange, the sealing gasket is located between the contact surfaces of the mounting flange, the direct-injection nozzle (or plug) and the nozzle position of the nozzle array panel are threaded, and some nozzle positions are closed with plugs according to actual needs. The liquid filling port and the liquid chamber are connected by welding, and the liquid filling pipeline includes a liquid filling pipe, a quick connector, and a release ball valve combination. The plate-fin heat exchanger consists of a heat exchanger core, an outer shell, and a waterway joint; the core and the outer shell are connected by welding, and the waterway joint and the outer shell are connected by bolts.

[0059] Among them, the wall thickness of the liquid chamber of the spray device is 4 to 8 mm, and the liquid adding pipeline adopts a DN40 specification pipe. One end is connected to the liquid adding port of the liquid chamber with a quick connector, and the other end is installed with a DN40 release ball valve combination. The large pipe diameter can speed up the filling speed of the liquid. The release ball valve combination and the liquid adding pipeline can be quickly connected and disassembled, and the pipeline is sealed after the liquid adding is completed.

[0060] Among them, the direct nozzle has a spray hole diameter of 0.1 to 0.3 mm, a spray pressure of 0.5 to 1 MPa, and an angle of 60° to 120° between the spray direction and the airflow direction, so as to change the flow rate and initial velocity of the sprayed liquid, affect the motion trajectory of the liquid beam, and adjust the characteristics of the liquid mist reaching the surface of the heat exchanger channel, so as to achieve the effect of improving the heat exchange capacity according to specific needs.

[0061] Among them, the nozzle site spacing of the nozzle array panel is 50 to 100 mm, which is adjusted according to different gas flow rate conditions to achieve uniform distribution of liquid mist reaching the surface of the heat exchanger channel and obtain similar heat exchange enhancement effects at each position.

[0062] Among them, the plate-fin heat exchanger has an air side fin thickness of 0.15-0.2mm, a fin spacing of 1.5-2mm, a fin height of 7-7.5mm, a water side fin thickness of 0.2-0.25mm, a fin spacing of 5-5.5mm, a fin height of 2-2.25mm, and a partition thickness of 0.5-0.6mm, in order to increase the equivalent heat exchange area of the heat exchanger and improve the heat exchange effect.

[0063] The present invention's operating principle: The plate-fin spray cooling heat exchanger utilizes a split-structure spray device, creating a compact, integrated plate-fin heat exchanger. This effectively improves heat exchange efficiency and reduces the heat exchanger's volume and weight. The spray device sprays liquid mist transversely to the gas flow, creating small droplets that adhere to the channels and fin surfaces. This enhances heat exchange through liquid evaporation and convection, significantly improving heat exchange efficiency.

[0064] In summary, the present invention belongs to the technical field of heat exchangers, and specifically relates to a plate-fin spray cooling heat exchanger with a transverse spray array. The heat exchanger adopts a split modular design and consists of a plate-fin heat exchanger and two spray devices. The plate-fin heat exchanger is an integrated compact structure, and there are two spray devices, which are arranged symmetrically on both sides of the plate-fin heat exchanger. The liquid chamber of the spray device is connected to the nozzle array panel by flange bolts, which is convenient for processing and replacing the nozzle array panel according to usage requirements, which is conducive to cost control; the installation site of the direct nozzle and the nozzle array panel is connected by threads. By selecting the nozzle and the closed part injection point, the nozzle arrangement pattern (position, spacing, aperture, etc.) can be adjusted. By adjusting the extrusion air supply pressure to control the liquid flow and the upstream pressure of the nozzle, the liquid mist parameters can be flexibly controlled according to the actual heat dissipation needs. The plate-fin spray cooling heat exchanger of the present invention can significantly improve the heat exchange efficiency of the heat exchanger, reduce the volume and weight of the heat exchanger, and the heat exchange enhancement can be adjusted according to actual needs, with a wider application space.

[0065] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A plate-fin spray cooling heat exchanger with a transverse spray array, characterized in that: The plate-fin spray cooling heat exchanger comprises: a plate-fin heat exchanger and two spray devices symmetrically arranged on both sides of the plate-fin heat exchanger; The plate-fin heat exchanger adopts an integrated compact structure, including a core, a shell, and a waterway joint, wherein the core is arranged inside the shell, and the waterway joint is arranged on the shell; The two spray devices both adopt a split structure, and both include a liquid chamber and a nozzle array panel; The liquid chamber comprises: a liquid chamber wall, a liquid chamber partition, a liquid filling port / pressure relief port, a pressure gas pipeline connection port, and a liquid chamber mounting flange; the liquid filling port / pressure relief port and the pressure gas pipeline connection port are respectively connected to the openings of the liquid chamber wall, and the liquid chamber mounting flange and the liquid chamber partition are respectively connected to the open edges of the liquid chamber wall, thereby forming a liquid chamber with liquid filling, pressure relief, and extrusion-type liquid supply functions; The nozzle array panel includes: a nozzle panel wall, nozzle sites, a nozzle panel mounting flange, a direct-injection nozzle, a plug, and a sealing gasket; the nozzle sites are threaded through holes arranged according to a specific pattern on the nozzle panel wall; the direct-injection nozzle and the plug are connected to the nozzle sites of the nozzle array panel by threading, and the nozzle panel mounting flange is connected to the nozzle panel wall by welding; The liquid chamber mounting flange and the nozzle panel mounting flange correspond to form a mounting flange surface. The liquid chamber and the nozzle array panel are in contact with each other through the mounting flange surface and are fastened with bolts and nuts. A sealing gasket is provided between the flange contact surfaces to form the entire spray device. The plate-fin heat exchanger has a fin thickness of 0.15-0.2 mm, a fin spacing of 1.5-2 mm, a fin height of 7-7.5 mm, a baffle thickness of 0.5-0.6 mm, and a channel number of 25-35; The wall thickness of the liquid chamber and the nozzle array panel of the spray device is 4-8 mm, and the air pressure in the chamber is 0.5-1 MPa, so as to maintain good sealing and safety of the liquid chamber under pressurized conditions; Among them, some nozzle sites are closed with plugs according to actual needs; Among them, the center spacing of the nozzle sites arranged on the nozzle array panel of the spray device is 50~100mm, the straight nozzle is threadedly connected to the threaded hole of the nozzle site, the nozzle hole diameter is 0.1~0.3mm, the angle between the injection direction and the airflow direction is 60°~120°, and the injection pressure is 0.5~1MPa, so as to change the flow rate, initial velocity and movement trajectory of the injection liquid, improve the liquid mist characteristics reaching the wall of the heat exchanger channel, and achieve the effect of improving the heat exchange capacity according to actual conditions.

2. The plate-fin spray cooling heat exchanger with a transverse spray array according to claim 1, characterized in that: In the plate-fin heat exchanger, the core and the shell are connected by welding, and the water channel joint and the shell are connected by bolts.

3. The plate-fin spray cooling heat exchanger with a transverse spray array according to claim 1, wherein: The liquid chamber partition separates the liquid in the liquid chamber, ensuring that sufficient liquid is supplied to nozzles at different heights, thereby improving the utilization rate of the liquid in the liquid chamber.

4. The plate-fin spray cooling heat exchanger with a transverse spray array according to claim 1, wherein: The diameter specification of the liquid filling port of the liquid chamber of the spray device is DN40, and the port is welded to the opening at the top of the liquid chamber.

5. The plate-fin spray cooling heat exchanger with a transverse spray array according to claim 4, characterized in that: The pressure gas cylinder, pressure reducing valve, gas line stop valve, and pressure gas pipeline connection port of the liquid chamber are all connected to each section of the gas pipeline through metal quick connectors. In actual use, open the pressure gas cylinder, adjust the downstream pressure to the appropriate pressure through the pressure reducing valve, open the gas line stop valve, and the pressure gas enters the liquid chamber through the pressure gas pipeline connection port, squeezing the liquid inside the chamber through the nozzle and spraying it out in the form of liquid mist.

6. The plate-fin spray cooling heat exchanger with a transverse spray array according to claim 5, characterized in that: The upstream of the liquid adding pipeline is connected to the liquid source. The liquid adding pipeline and the DN40 specification release ball valve combination are connected by threaded hole-bolt method. The liquid adding pipeline and the liquid adding port / pressure relief port are connected by a quick connector. The use of the release ball valve combination can realize the rapid connection and disassembly of the liquid adding pipeline. After the liquid adding is completed, the release ball valve combination is closed and disconnected to complete the sealing of the pipeline, thereby improving the utilization efficiency.

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