A V-shaped fin reinforced heat exchange air-cooled module unit

Abstract

The application discloses a V-shaped fin reinforced heat exchange air-cooled module unit, which comprises a flow blocking panel, a heat exchange module one, a heat exchange module two, a support frame and a cold source module, wherein the heat exchange module one and the heat exchange module two are arranged in parallel. Two groups of obliquely arranged fin heat exchange components are arranged in each heat exchange module, the lower ends of the two groups of fin heat exchange components are close to each other, and the upper ends are far away from each other, thereby forming a V-shaped heat exchange assembly with an opening facing upward. Each group of fin heat exchange components is provided with three groups of hollow heat exchange plates which are arranged at intervals along the airflow direction, and the hollow heat exchange plates are composed of S-shaped flow guide pipes and fin structures. The flow blocking panel, a side plate and an upper cover plate enclose a flow limiting and air guiding area, the cold source module is provided with a cold carrier medium passage and four groups of mutually independent refrigerant circulating passages, and the two types of passages are isolated from each other in the exchange flow component. The unit can reduce bypass airflow and local heat exchange dead angle, and improve heat exchange uniformity and operation stability.

Description

Technical Field

[0001] This invention relates to an air-cooled modular unit with enhanced heat exchange using V-shaped fins, belonging to the technical field of air-cooled modular units. Background Technology

[0002] Air-cooled modular chiller units typically use a fan to drive ambient air through finned heat exchangers, allowing refrigerant to exchange heat with the air, and forming a cooling or heating cycle through a compressor, throttling element, and water-side heat exchanger. To increase the air-side heat exchange area within the limited width of the unit, existing equipment often arranges two finned heat exchangers at an angle below the fan.

[0003] Existing inclined finned heat exchangers often lack continuous flow-limiting structures at the side and top gaps and adjacent module connections, allowing air to easily bypass along non-heat exchange areas with lower resistance. The ventilation gaps between heat exchange plates lack a corresponding relationship with the refrigerant flow path, potentially leading to insufficient airflow or uneven refrigerant distribution in localized areas. Multi-compressor modular units have both refrigerant and water or secondary cooling medium circuits, and some designs fail to clearly distinguish the flow paths of these two media. If only one medium channel is recorded in a water-side heat exchanger, the isolation and heat transfer relationship between the refrigerant and the secondary cooling medium is difficult to determine.

[0004] A type of air-cooled modular unit is needed that clearly defines the V-shaped air-side heat exchange structure, the flow-limiting air guide path, the refrigerant distribution method, and the isolation heat exchange relationship between the refrigerant cycle and the cooling medium cycle. Summary of the Invention

[0005] The purpose of this invention is to provide an air-cooled modular unit with enhanced heat exchange using V-shaped fins, in order to solve the problems of airflow short-circuiting, local heat exchange dead zones, uneven refrigerant distribution, and unclear relationship between the refrigerant circuit and the cooling medium circuit in existing air-cooled modular units.

[0006] To achieve the above objectives, the present invention provides an air-cooled modular unit with enhanced heat exchange via V-shaped fins, comprising a baffle panel, a heat exchange module one and a heat exchange module two arranged in parallel, a support frame for supporting each heat exchange module, and a cold source module disposed below each heat exchange module. Heat exchange module one and heat exchange module two have identical structures, each including a cooling fan, a side plate, an upper cover plate, a branch pipe, a branch guide pipe, a lower pipe, and an upper connecting frame.

[0007] Each heat exchange module contains two sets of finned heat exchange components, which are arranged at an angle, with their lower ends close to each other and their upper ends far apart, together forming an upward-facing V-shaped heat exchange assembly. Each set of finned heat exchange components includes three sets of perforated heat exchange plates spaced apart along the airflow direction, with ventilation gaps formed between adjacent perforated heat exchange plates. Each set of perforated heat exchange plates consists of multiple S-shaped, meandering branch flow tubes and finned structures that exchange heat with the branch flow tubes.

[0008] The baffle panel, side plate, and upper cover together enclose the airflow limiting and guiding area. When the cooling fan is running, the baffle panel and side plate restrict the airflow from the side of the heat exchange module or the non-heat exchange area, allowing the air to pass through the ventilation gap between adjacent hollow heat exchange plates and fully exchange heat with the branch guide pipe and fin structure.

[0009] The cold source module includes an exchange flow component, four independent refrigerant circulation paths, and a cooling medium path connected to the exchange flow component. Each refrigerant circulation path includes a cold circulation component and a refrigerant filter component. The refrigerant path and the cooling medium path are isolated from each other within the exchange flow component and exchange heat. The cold circulation component changes the refrigerant flow direction through a four-way reversing valve, allowing the V-fin heat exchange assembly and the exchange flow component to function as either a condenser or an evaporator depending on the operating conditions.

[0010] The refrigerant filtration component has dryer filters installed on both sides of the bidirectional electronic expansion valve, so that the refrigerant can be filtered before throttling in different flow directions. The refrigerant passage of the exchange flow component consists of an inlet inner pipe, multiple exchange flow inner pipes, and an outlet conduit, while the cooling medium passage consists of an inlet outer pipe, a heat exchange chamber, and an outlet outer pipe. The two passages are isolated from each other.

[0011] After adopting the above technical solution, the beneficial effect of the present invention is that the two sets of inclined finned heat exchange components constitute a V-shaped heat exchange assembly, forming a large air-side heat exchange area within the limited unit width.

[0012] The baffle panel, side panels, and upper cover form a flow-limiting and air-guiding area. Air passes through three sets of perforated heat exchange plates along the ventilation gaps, reducing the bypass airflow in the side and non-heat exchange areas, and consequently reducing local heat exchange dead zones.

[0013] The S-shaped distribution pipe, three sets of spaced heat exchange plates, and multiple sets of independent refrigerant circulation paths form a layered heat exchange path. Each refrigerant circulation path can be started or stopped according to the load, thus improving the uniformity of refrigerant distribution and heat exchange.

[0014] The refrigerant passage and the cooling medium passage are kept isolated within the exchange flow component, allowing heat exchange to occur without mixing. The bidirectional throttling filter structure accommodates bidirectional refrigerant flow, while the gas-liquid separation structure reduces the risk of liquid refrigerant entering the scroll compressor. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an air-cooled modular unit with enhanced heat exchange using V-shaped fins according to the present invention; Figure 2 This is a left oblique view of the structure of heat exchange module one in the air-cooled modular unit with enhanced heat exchange by V-shaped fins according to the present invention. Figure 3 This is a schematic diagram of the cold source module in a V-shaped finned heat exchange enhanced air-cooled modular unit according to the present invention; Figure 4 This is a rear view of the cold source module in a V-shaped finned heat exchange-enhanced air-cooled modular unit according to the present invention. Figure 5 This is a rear view schematic diagram of the internal structure of the filter component in a V-shaped finned heat exchange enhanced air-cooled modular unit according to the present invention. Figure 6 This is a front view of the cooling circulation component in an air-cooled modular unit with enhanced heat exchange using V-shaped fins, according to the present invention. Figure 7 This is a schematic diagram of the rear structure of the cooling circulation component in an air-cooled modular unit with enhanced heat exchange using V-shaped fins, according to the present invention. Figure 8 This is a top view of the internal front structure of the heat exchange component in an air-cooled modular unit with enhanced heat exchange using V-shaped fins, according to the present invention. Figure 9 This is a front view of the structure of the air-cooled modular unit with V-shaped fins for enhanced heat exchange in the present invention, when the inner tube of the heat exchange flow is separated from the heat exchange column. In the diagram: 1-Baffle panel, 2-Heat exchange module one, 3-Support frame, 4-Cold source module, 5-Heat exchange module two; 21-Cooling fan, 22-Side panel, 23-Upper cover, 24-Diverter pipe, 25-Diverter pipe, 26-Lower pipe, 27-Upper connecting bracket; 41-Inlet external pipe, 42-Exchange flow component, 43-Outlet external pipe, 44-Inlet and outlet refrigerant branch pipes, 45-Lower mounting bracket, 46-Cold circulation component, 47-Refrigerant filter component; 46a-Cold circulation pipe, 46b-Four-way reversing valve, 46c-Connecting elbow, 46d-Gas-liquid separator, 46e-Suction pipe, 46f-Scroll compressor, 46g-Injection pipe, 46h-Compression guide pipe, 46i-Cold liquid flow pipe; 47a-Filter connector, 47b-Filter 1, 47c-Flow guide tube, 47d-Electronic expansion valve, 47e-Drainage pipe, 47f-Filter 2, 47g-Supply pipe, 47h-Divider head; 42a-Inlet guide frame, 42b-Positioning frame, 42c-Heat exchange column, 42d-Exchange flow inner tube, 42e-Inner clamping connection frame, 42f-Base, 42g-Outlet guide frame, 42h-Inlet inner tube, 42i-Inner heat conduction shell, 42j-Positioning groove, 42k-Heat exchange cavity, 42l-Outlet conduit. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: V-shaped finned heat exchanger assembly structure The baffle panel 1 has two sets. The heat exchange module 1 2 and the heat exchange module 2 5 are arranged in parallel and supported by the support frame 3. The bottom of the heat exchange module 1 2 and the heat exchange module 2 5 are connected to the cold source module 4, and the structures of the heat exchange module 1 2 and the heat exchange module 2 5 are the same. The heat exchange module 1 2 includes a cooling fan 21, a side plate 22, an upper cover plate 23, a diversion pipe 24, a diversion guide pipe 25, a lower pipe 26, and an upper connecting frame 27. The cooling fan 21 is arranged inside the baffle panel 1, and the side plate 22 is arranged on the lower side of the baffle panel 1. The baffle panel 1, the side plate 22, and the upper cover plate 23 together enclose a flow-limiting and air-guiding area. Each heat exchange module has two sets of finned heat exchange components. The two sets of finned heat exchange components are arranged at an angle, and their lower ends are opposite each other. The components, located close to each other at the top and far apart at the bottom, together form an upward-facing V-shaped heat exchange assembly. Each group of finned heat exchange components includes three sets of perforated heat exchange plates spaced apart along the airflow direction. A ventilation gap is formed between adjacent sets of perforated heat exchange plates. Each set of perforated heat exchange plates includes multiple S-shaped, meandering branch pipes 25 and finned structures that come into heat exchange contact with the branch pipes 25. The liquid inlet end of each group of finned heat exchange components is connected to the branch pipe 24, and the liquid outlet end is connected to the branch drain pipe. The branch pipe 24 and the branch drain pipe are respectively connected to the cold source module 4 through the lower pipe 26. The baffle plate 1 and the side plate 22 are used to restrict the air driven by the cooling fan 21 from bypassing the side of the heat exchange module or the non-heat exchange area, so that the air passes through the finned heat exchange components through the ventilation gap.

[0019] In each group of hollow heat exchange plates, multiple branch flow tubes 25 are arranged in parallel at intervals and extend in an S-shape in the same plane. The fin structure is arranged along the extension direction of the branch flow tubes 25. The ventilation gap between two adjacent groups of hollow heat exchange plates corresponds to the air intake direction of the cooling fan 21.

[0020] The finned heat exchange components are provided in four groups. Heat exchange module 1 2 and heat exchange module 2 5 each include two groups of finned heat exchange components. The two groups of finned heat exchange components located in the same plane and belonging to heat exchange module 1 2 and heat exchange module 2 5 respectively can form a refrigerant passage through the diversion pipe 24 and diversion pipe. The lower ends of each diversion pipe 24 and diversion pipe are connected to the corresponding lower pipe 26. The upper connecting frame 27 is set at the lower end of the upper cover plate 23 and connected to the cold source module 4.

[0021] like Figure 1 and Figure 2 As shown, the baffle panel 1, heat exchange module 1 2, heat exchange module 2 5, and cold source module 4 are mounted on the support frame 3. Heat exchange module 1 2 and heat exchange module 2 5 are arranged side by side, and the cold source module 4 is located below the two sets of heat exchange modules. After receiving the operating command, the unit first activates the required refrigerant circulation path, and then starts the corresponding cooling fan 21. Heat exchange modules 1 2 and heat exchange module 2 5 can be fully activated, or they can be activated in stages according to the load.

[0022] The heat exchange module 2 includes a cooling fan 21, a side plate 22, an upper cover plate 23, a diversion pipe 24, a diversion guide pipe 25, a lower pipe 26, and an upper connecting frame 27. The cooling fan 21 is fixed in the upper opening of the baffle panel 1. The side plate 22 is located on the side of the heat exchange module, and the upper cover plate 23 covers the outer area of ​​the heat exchange module. The baffle panel 1, the side plate 22, and the upper cover plate 23 form a continuous flow-limiting and air-guiding area, and the fan opening communicates with this area.

[0023] Each heat exchange module contains two sets of finned heat exchange components. The lower ends of the two sets of finned heat exchange components are close to each other, while the upper ends are far apart, forming an upward-opening V-shaped heat exchange assembly. A cooling fan 21 is located above the V-shaped heat exchange assembly. When the cooling fan 21 draws in air, an upward airflow is formed inside the heat exchange module. Ambient air enters from the sides and bottom of the V-shaped heat exchange assembly, passes through the finned heat exchange components, and is then exhausted upward by the cooling fan 21.

[0024] Each finned heat exchanger assembly has three sets of perforated heat exchange plates arranged at intervals along the airflow direction. Each set of perforated heat exchange plates consists of multiple branch guide tubes 25 and finned structures. The branch guide tubes 25 extend in an S-shape within the same plane, and the finned structures are fitted into the branch guide tubes 25. Ventilation gaps are maintained between adjacent perforated heat exchange plates. After entering the heat exchange module, air passes through the three sets of perforated heat exchange plates in sequence, contacting the branch guide tubes 25 and finned structures of each layer.

[0025] The refrigerant enters the distribution pipe 24 from the cold source module 4 via the lower inlet pipe 26. The distribution pipe 24 distributes the refrigerant to each branch pipe 25. The refrigerant flows along the S-shaped pipe and exchanges heat with the air passing through the finned structure. The refrigerant discharged from each branch pipe 25 merges into the branch manifold and then returns to the cold source module 4 via the lower inlet pipe 26. Two sets of finned heat exchange components located on the same side plane share a branch inlet pipe 24 and a branch manifold. The upper connecting frame 27 connects the upper cover plate 23 and the cold source module 4 and supports the pipe interface area.

[0026] During unit operation, the baffle panel 1 restricts airflow from the non-fan area above the heat exchange module, the side plate 22 restricts airflow around the side of the heat exchange module, and the upper cover 23 maintains the continuity of the airflow between the fan inlet and the V-shaped heat exchange components. Air mainly enters the cooling fan 21 through the ventilation gaps between the three sets of perforated heat exchange plates. Bypass airflow at the top gap and module connection points is restricted.

[0027] Example 2: Cold source module and dual-medium heat exchange structure The cold source module 4 includes an inlet pipe 41, an exchange flow component 42, an outlet pipe 43, inlet and outlet refrigerant branch pipes 44, a lower mounting bracket 45, a cold circulation component 46, and a refrigerant filter component 47. The inlet pipe 41 and the outlet pipe 43 are respectively connected to the cold medium side of the exchange flow component 42 to allow the cold medium to flow through the exchange flow component 42. The inlet and outlet refrigerant branch pipes 44 are provided with eight sets, which are divided into four sets of first refrigerant branch pipes and four sets of second refrigerant branch pipes. Each set of first refrigerant branch pipes and the corresponding set of second refrigerant branch pipes are connected to a set of cold circulation components 46 and a set of refrigerant filter components 47 to form an independent refrigerant circulation path. The exchange flow component 42 is mounted on the lower mounting bracket 45, and the refrigerant side of the exchange flow component 42 is connected to the refrigerant circulation path.

[0028] like Figure 3 and Figure 4 As shown, the cold source module 4 includes an inlet outer pipe 41, an exchange flow component 42, an outlet outer pipe 43, inlet and outlet refrigerant branch pipes 44, a lower mounting bracket 45, a cold circulation component 46, and a refrigerant filter component 47. The exchange flow component 42 is fixed on the lower mounting bracket 45. External water or other cooling media enter the exchange flow component 42 through the inlet outer pipe 41 under the action of circulation pressure, flow through each heat exchange cavity 42k, and then converge into the outlet outer pipe 43. The cooling media flows through the heat exchange cavity 42k, past the outer side of the exchange flow inner pipe 42d and the inner heat-conducting shell 42i.

[0029] The refrigerant side of the exchange flow component 42 is connected to four refrigerant circulation paths via eight sets of inlet and outlet refrigerant branch pipes 44. Each refrigerant circulation path uses one set of first refrigerant branch pipes and one set of second refrigerant branch pipes, and is connected to one set of cold circulation components 46 and one set of refrigerant filter components 47. The four refrigerant circulation paths are independent of each other. When the unit load is low, some paths are activated, and when the load increases, more paths are activated.

[0030] The refrigerant circulates along the cold circulation component 46, the refrigerant filter component 47, the V-fin heat exchange assembly, and the exchange flow component 42. The cooling medium flows along the inlet outer pipe 41, the exchange flow component 42, and the outlet outer pipe 43. The refrigerant is located inside the exchange flow inner pipe 42d, and the cooling medium is located inside the heat exchange cavity 42k. The two media transfer heat through the exchange flow inner pipe 42d and the inner heat-conducting shell 42i, without direct contact.

[0031] Example 3: Refrigerant Circulation and Reversing Operation The cold circulation component 46 includes a cold circulation pipe 46a, a four-way reversing valve 46b, a connecting bend 46c, a gas-liquid separator 46d, a suction pipe 46e, a scroll compressor 46f, a liquid injection pipe 46g, a compression guide pipe 46h, and a cold liquid flow pipe 46i. The exhaust end of the scroll compressor 46f is connected to the four-way reversing valve 46b through the compression guide pipe 46h. The four-way reversing valve 46b is connected to the exchange flow component 42, the cold liquid flow pipe 46i, and the gas-liquid separator 46d. The gas-liquid separator 46d is connected to the suction end of the scroll compressor 46f through the suction pipe 46e. The cold liquid flow pipe 46i is connected to heat exchange module 2 and heat exchange module 5 through the lower lead pipe 26. One end of the liquid injection pipe 46g is connected to the liquid injection port of the scroll compressor 46f, and the other end is connected to the liquid refrigerant pipeline in the refrigerant filter component 47.

[0032] like Figures 5 to 7 As shown, the cold circulation component 46 includes a cold circulation pipe 46a, a four-way reversing valve 46b, a connecting bend 46c, a gas-liquid separator 46d, a suction pipe 46e, a scroll compressor 46f, a liquid injection pipe 46g, a compression guide pipe 46h, and a cold liquid flow pipe 46i. The discharge end of the scroll compressor 46f is connected to the four-way reversing valve 46b via the compression guide pipe 46h, and the suction end is connected to the gas-liquid separator 46d via the suction pipe 46e. The cold liquid flow pipe 46i is connected to heat exchange module 2 and heat exchange module 5 via the lower lead pipe 26. Before the four-way reversing valve 46b switches, the controller first reduces the compressor operating frequency, then performs the reversal, and after the reversal is completed, restores the set operating conditions.

[0033] In heating mode, the high-temperature, high-pressure gaseous refrigerant discharged from the scroll compressor 46f flows sequentially through the compression guide pipe 46h, the four-way reversing valve 46b, and the inlet / outlet refrigerant branch pipes 44, entering the exchange flow component 42. The refrigerant releases heat to the cooling medium and condenses within the exchange flow inner pipe 42d. After leaving the exchange flow component 42, the liquid refrigerant flows sequentially through the filter pipe 47a, filter one 47b, liquid flow guide pipe 47c, electronic expansion valve 47d, drain pipe 47e, filter two 47f, upper liquid pipe 47g, and distributor head 47h. The throttled refrigerant enters each branch guide pipe 25 through the branch pipe 24, absorbing heat from the ambient air and evaporating within the V-shaped fin heat exchange assembly. The low-pressure gaseous refrigerant enters the gas-liquid separator 46d through the lower pipe 26, the cold liquid flow pipe 46i, and the four-way reversing valve 46b, and after liquid droplet separation, returns to the scroll compressor 46f through the suction pipe 46e.

[0034] In refrigeration mode, the four-way reversing valve 46b directs the exhaust gas from the scroll compressor 46f to the cold liquid flow pipe 46i. High-temperature, high-pressure refrigerant enters heat exchange module 1 2 and heat exchange module 2 5 via the cold liquid flow pipe 46i and the lower inlet pipe 26, releasing heat to the ambient air and condensing within the distribution pipe 25. Liquid refrigerant flows from the distribution pipe 24 to the liquid distributor 47h, sequentially passing through the upper liquid pipe 47g, filter 2 47f, the drainage pipe 47e, the electronic expansion valve 47d, the liquid flow conduit 47c, filter 1 47b, and the filter connector 47a. The throttled refrigerant enters the exchange flow component 42 via the refrigerant inlet / outlet pipe 44, absorbing heat from the cooling medium and evaporating within the exchange flow inner pipe 42d. Low-pressure gaseous refrigerant enters the gas-liquid separator 46d via the four-way reversing valve 46b, and then returns to the scroll compressor 46f via the suction pipe 46e.

[0035] One end of the injection pipe 46g is connected to the injection port of the scroll compressor 46f, and the other end is connected to the liquid refrigerant line in the refrigerant filter component 47. The controller reads the discharge temperature of the scroll compressor 46f. When the discharge temperature reaches the set value, the injection pipe 46g delivers a small amount of liquid refrigerant to the injection port. The liquid refrigerant evaporates and absorbs heat in the compression chamber. After the discharge temperature drops, the injection rate decreases or stops.

[0036] Example 4: Two-way throttling filter structure The refrigerant filtration component 47 includes a filter connector 47a, a first filter 47b, a liquid flow conduit 47c, an electronic expansion valve 47d, a drain pipe 47e, a second filter 47f, an upper liquid pipe 47g, and a distributor head 47h. The first filter 47b and the second filter 47f are respectively disposed on both sides of the electronic expansion valve 47d. The first filter 47b is connected to the inlet and outlet refrigerant branch pipes 44 through the filter connector 47a. The first filter 47b is connected to the electronic expansion valve 47d through the liquid flow conduit 47c. The electronic expansion valve 47d is connected to the second filter 47f through the drain pipe 47e. The second filter 47f is connected to the diversion pipe 24 in sequence through the upper liquid pipe 47g and the distributor head 47h. The electronic expansion valve 47d is a bidirectional electronic expansion valve. The distributor head 47h is used to distribute refrigerant when the heat exchange module is used as an evaporator and to collect refrigerant when the heat exchange module is used as a condenser.

[0037] like Figure 5 As shown, the refrigerant filter assembly 47 is connected in the following order: filter connector 47a, filter one 47b, liquid flow conduit 47c, electronic expansion valve 47d, drain pipe 47e, filter two 47f, liquid inlet pipe 47g, and distributor head 47h. Filter one 47b and filter two 47f are located on either side of the electronic expansion valve 47d. The electronic expansion valve 47d is a bidirectional electronic expansion valve, which can adjust its opening according to the refrigerant flow direction.

[0038] In heating mode, liquid refrigerant from the exchange flow component 42 enters filter 47b through filter connector 47a, and then enters electronic expansion valve 47d via liquid flow conduit 47c. After throttling, the refrigerant enters distributor head 47h via drain pipe 47e, filter 47f, and liquid inlet pipe 47g. Filter 47b, located upstream of electronic expansion valve 47d, is responsible for intercepting solid impurities and adsorbing moisture before throttling.

[0039] In refrigeration mode, the refrigerant flows from the distribution pipe 24 into the liquid distributor 47h, then through the upper liquid pipe 47g and filter 47f to the electronic expansion valve 47d. Filter 47f is located upstream of the electronic expansion valve 47d in this flow direction. After throttling, the refrigerant flows through the liquid flow conduit 47c, filter 47b, and filter connector 47a to the exchange flow component 42. When the V-fin heat exchange assembly functions as an evaporator, the liquid distributor 47h distributes refrigerant to each distribution pipe 25; when the V-fin heat exchange assembly functions as a condenser, the liquid distributor 47h collects the refrigerant discharged from each distribution pipe 25.

[0040] Example 5: Structure of the Exchange Flow Component The exchange flow component 42 includes an inlet guide frame 42a, a positioning frame 42b, a heat exchange column 42c, an exchange flow inner tube 42d, an inlet inner tube 42h, a heat exchange cavity 42k, and an outlet conduit 42l. The inlet inner tube 42h is disposed within the inlet guide frame 42a and fixed by the positioning frame 42b. Multiple exchange flow inner tubes 42d are respectively disposed within the heat exchange cavities 42k of the corresponding heat exchange columns 42c. The upper ends of the multiple exchange flow inner tubes 42d are connected to the inlet inner tube 42h, and the lower ends are connected to the outlet conduit 42l to form a refrigerant channel. The heat exchange cavity 42k is connected to the inlet outer tube 41 and the outlet outer tube 43 to form a cooling medium channel. The refrigerant channel and the cooling medium channel are isolated from each other and heat exchange occurs within the heat exchange cavity 42k.

[0041] The exchange flow component 42 further includes an inner clamping connector 42e, a base 42f, an outflow guide 42g, an inner heat-conducting shell 42i, and a positioning groove 42j. A positioning protrusion is provided on the outer side of the exchange flow inner tube 42d. An inner insertion groove that fits into the positioning protrusion is provided inside the heat exchange column 42c. The inner heat-conducting shell 42i is sleeved outside the exchange flow inner tube 42d and located inside the heat exchange cavity 42k. An annular positioning groove 42j is provided at the upper end of the heat exchange column 42c. The inner clamping connector 42e fits into the positioning groove 42j and is fixed to the inflow guide 42a by bolts. The base 42f is located below the heat exchange column 42c. The outflow guide 42g is located on the base 42f and supports the outflow guide 42l.

[0042] like Figure 8 and Figure 9 As shown, the heat exchanger component 42 includes an inlet guide 42a, a positioning frame 42b, a heat exchange column 42c, an inner heat exchange tube 42d, an inner clamping connecting frame 42e, a base 42f, an outlet guide 42g, an inlet inner tube 42h, an inner heat-conducting shell 42i, a positioning groove 42j, a heat exchange cavity 42k, and an outlet conduit 42l. Each heat exchange column 42c is vertically mounted on the base 42f, with the inlet guide 42a located above the heat exchange column 42c and the outlet guide 42g located below the heat exchange column 42c.

[0043] The refrigerant enters the inlet inner pipe 42h through the inlet / outlet refrigerant branch pipe 44. The inlet inner pipe 42h distributes the refrigerant to multiple exchange flow inner pipes 42d. The refrigerant flows downward along the exchange flow inner pipes 42d, completes heat exchange, and then flows into the outlet conduit 42l, before exiting through the corresponding inlet / outlet refrigerant branch pipe 44. The inner heat-conducting shell 42i is fitted over the outside of the exchange flow inner pipes 42d, maintaining thermally conductive contact with the exchange flow inner pipes 42d to increase the area of ​​heat transfer from the refrigerant channel to the heat exchange cavity 42k.

[0044] The cooling medium enters the heat exchange chamber 42k of each heat exchange column 42c through the inlet outer pipe 41. The cooling medium flows along the outer surface of the exchange flow inner pipe 42d and the inner heat-conducting shell 42i, and after heat exchange, it flows into the outlet outer pipe 43. The refrigerant flows in the inlet inner pipe 42h, the exchange flow inner pipe 42d, and the outlet conduit 42l. The heat exchange columns 42c, the exchange flow inner pipe 42d, and the inner heat-conducting shell 42i separate the two media. The two media exchange heat without contact.

[0045] During assembly, the inner heat exchange tube 42d, fitted with an inner heat-conducting shell 42i, is inserted into the heat exchange column 42c. The positioning protrusion on the outside of the inner heat exchange tube 42d engages with the inner insertion groove inside the heat exchange column 42c. The positioning groove 42j at the upper end of the heat exchange column 42c mates with the inner clamping bracket 42e, which is bolted to the inlet guide bracket 42a. The base 42f supports the heat exchange column 42c, and the outlet guide bracket 42g supports the outlet duct 42l. All inner heat exchange tubes 42d remain parallel, allowing the refrigerant to be distributed and heat exchanged in multiple branches.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A V-shaped finned heat exchange enhanced air-cooled modular unit, comprising a baffle plate (1), a heat exchange module one (2), a support frame (3), a cold source module (4), and a heat exchange module two (5), characterized in that: The baffle panel (1) is provided with two sets. The heat exchange module one (2) and the heat exchange module two (5) are arranged in parallel and supported by the support frame (3). The bottom of the heat exchange module one (2) and the heat exchange module two (5) are connected to the cold source module (4), and the heat exchange module one (2) and the heat exchange module two (5) have the same structure. The heat exchange module 1 (2) includes a cooling fan (21), a side plate (22), an upper cover plate (23), a diversion pipe (24), a diversion guide pipe (25), a lower pipe (26), and an upper connecting frame (27). The cooling fan (21) is located inside the baffle panel (1), and the side plate (22) is located on the lower side of the baffle panel (1). The baffle panel (1), the side plate (22), and the upper cover plate (23) together enclose a flow-limiting and air-guiding area. Each heat exchange module is provided with two sets of finned heat exchange components. The two sets of finned heat exchange components are arranged at an angle, with their lower ends close to each other and their upper ends far apart, together forming a V-shaped heat exchange assembly with the opening facing upward. Each set of finned heat exchange components includes three sets of hollow heat exchange plates arranged at intervals along the airflow direction. A ventilation gap is formed between two adjacent sets of hollow heat exchange plates. Each set of hollow heat exchange plates includes multiple branch flow tubes (25) arranged in an S-shape and a fin structure that is in heat exchange contact with the branch flow tubes (25). The liquid inlet end of each finned heat exchange component is connected to the diversion pipe (24), and the liquid outlet end is connected to the diversion drain pipe. The diversion pipe (24) and the diversion drain pipe are respectively connected to the cold source module (4) through the lower pipe (26). The baffle panel (1) and side plate (22) are used to restrict the air driven by the cooling fan (21) from bypassing the side of the heat exchange module or the non-heat exchange area, so that the air passes through the finned heat exchange component through the ventilation gap.

2. The air-cooled modular unit with V-shaped fins for enhanced heat exchange according to claim 1, characterized in that: In each set of hollow heat exchange plates, multiple branch flow tubes (25) are arranged in parallel and extend in an S-shape in the same plane. The fin structure is arranged along the extension direction of the branch flow tubes (25). The ventilation gap between two adjacent sets of hollow heat exchange plates corresponds to the air intake direction of the cooling fan (21).

3. The air-cooled modular unit with V-shaped fins for enhanced heat exchange according to claim 2, characterized in that: The finned heat exchange components are provided in four groups. Heat exchange module one (2) and heat exchange module two (5) each include two groups of finned heat exchange components. Two sets of finned heat exchange components located on the same side plane and belonging to heat exchange module one (2) and heat exchange module two (5) respectively can form a set of refrigerant passages through the diversion pipe (24) and diversion pipe. The lower ends of each set of diversion pipe (24) and diversion pipe are connected to the corresponding lower pipe (26). The upper connecting frame (27) is set at the lower end of the upper cover plate (23) and connected to the cold source module (4).

4. The air-cooled modular unit with V-shaped fins for enhanced heat exchange according to claim 3, characterized in that: The cold source module (4) includes an inlet pipe (41), an exchange flow component (42), an outlet pipe (43), inlet and outlet refrigerant branch pipes (44), a lower mounting bracket (45), a cold circulation component (46), and a refrigerant filter component (47). The inlet pipe (41) and outlet pipe (43) are respectively connected to the cooling medium side of the exchange flow component (42) to allow the cooling medium to flow through the exchange flow component (42). The inlet and outlet refrigerant branch pipes (44) are provided with eight groups and divided into four groups of first refrigerant branch pipes and four groups of second refrigerant branch pipes. Each group of first refrigerant branch pipes and the corresponding group of second refrigerant branch pipes are connected to a group of cold circulation components (46) and a group of refrigerant filter components (47) to form an independent refrigerant circulation path. The exchange flow component (42) is disposed on the lower mounting bracket (45), and the refrigerant side of the exchange flow component (42) is connected to the refrigerant circulation passage.

5. The air-cooled modular unit with V-shaped fins for enhanced heat exchange according to claim 4, characterized in that: The cold circulation component (46) includes a cold circulation pipe (46a), a four-way reversing valve (46b), a connecting elbow (46c), a gas-liquid separator (46d), a suction pipe (46e), a scroll compressor (46f), a liquid injection pipe (46g), a compression guide pipe (46h), and a cold liquid flow pipe (46i). The exhaust end of the scroll compressor (46f) is connected to the four-way reversing valve (46b) through the compression guide pipe (46h). The four-way reversing valve (46b) is connected to the exchange flow component (42), the cold liquid flow pipe (46i) and the gas-liquid separator (46d) respectively. The gas-liquid separator (46d) is connected to the suction end of the scroll compressor (46f) through the suction pipe (46e). The cold liquid flow pipe (46i) is connected to the heat exchange module one (2) and the heat exchange module two (5) through the lower lead pipe (26). One end of the injection pipe (46g) is connected to the injection port of the scroll compressor (46f), and the other end is connected to the liquid refrigerant pipeline in the refrigerant filter component (47).

6. The air-cooled modular unit with V-shaped fins for enhanced heat exchange according to claim 4, characterized in that: The refrigerant filtration component (47) includes a filter connector (47a), a first filter (47b), a liquid flow conduit (47c), an electronic expansion valve (47d), a drainage pipe (47e), a second filter (47f), an upper liquid pipe (47g), and a liquid distributor (47h). The first filter (47b) and the second filter (47f) are respectively disposed on both sides of the electronic expansion valve (47d). The first filter (47b) is connected to the inlet and outlet refrigerant branch pipe (44) through the filter connector (47a). The first filter (47b) is connected to the electronic expansion valve (47d) through the liquid flow conduit (47c). The electronic expansion valve (47d) is connected to the second filter (47f) through the drainage pipe (47e). The second filter (47f) is connected to the diversion pipe (24) in sequence through the liquid inlet pipe (47g) and the liquid distributor (47h). The electronic expansion valve (47d) is a bidirectional electronic expansion valve, and the distributor (47h) is used to distribute refrigerant when the heat exchange module is used as an evaporator and to collect refrigerant when the heat exchange module is used as a condenser.

7. The air-cooled modular unit with V-shaped fins for enhanced heat exchange according to claim 4, characterized in that: The exchange flow component (42) includes an inlet guide (42a), a positioning frame (42b), a heat exchange column (42c), an exchange flow inner tube (42d), an inlet inner tube (42h), a heat exchange cavity (42k), and an outlet duct (42l). The inlet inner tube (42h) is installed inside the inlet guide (42a) and fixed by the positioning frame (42b). Multiple exchange inner tubes (42d) are respectively installed in the heat exchange chamber (42k) of the corresponding heat exchange column (42c). The upper end of the multiple exchange inner tubes (42d) is connected to the inlet inner tube (42h) and the lower end is connected to the outlet duct (42l) to form a refrigerant channel. The heat exchange cavity (42k) is connected to the inlet outer pipe (41) and the outlet outer pipe (43) respectively to form a cooling medium channel. The refrigerant channel and the cooling medium channel are isolated from each other and heat exchange takes place in the heat exchange cavity (42k).

8. The air-cooled modular unit with V-shaped fins for enhanced heat exchange according to claim 7, characterized in that: The exchange flow component (42) also includes an inner card connector (42e), a base (42f), an outflow guide (42g), an inner heat-conducting shell (42i), and a positioning groove (42j). The outer side of the exchange flow inner tube (42d) is provided with a positioning protrusion, and the heat exchange column (42c) is provided with an inner insertion groove that fits into the positioning protrusion. The inner heat-conducting shell (42i) is sleeved on the outside of the exchange flow inner tube (42d) and located inside the heat exchange cavity (42k). The upper end of the heat exchange column (42c) is provided with an annular positioning groove (42j). The inner clamping connecting frame (42e) is fitted into the positioning groove (42j) and fixed to the inlet guide frame (42a) by bolts. The base (42f) is located below the heat exchange column (42c). The outlet guide frame (42g) is located on the base (42f) and supports the outlet guide tube (42l).

Images