A high water temperature, large temperature difference heat exchange equipment

Abstract

The present application provides a high water temperature, large temperature difference heat exchange device, which includes a shell, and a fan and a heat exchanger arranged in the shell, the shell is provided with an air inlet and an air outlet, the fan is configured to suck gas into the shell from the air inlet, pass the gas through the heat exchanger, and then discharge the gas from the air outlet, the heat exchanger includes at least one heat exchange structure, a heat exchange structure includes at least one first inclined section and at least one second inclined section connected in series, the at least one first inclined section and the at least one second inclined section are alternately arranged along the flow direction of the gas in the shell, and adjacent first inclined sections and second inclined sections are combined to form a V shape.

Description

Technical Field

[0001] The present application relates to the field of air conditioning and refrigeration technology, and in particular to a high water temperature and large temperature difference heat exchange device. Background Art

[0002] As the heat load density of data centers and communication rooms increases, their energy consumption problem becomes more serious. The power of data centers is mainly consumed by two types of equipment: IT equipment and computer room equipment. IT equipment mainly includes servers, storage devices and network equipment; computer room equipment includes UPS, power distribution equipment, cables, air conditioners, fresh air blowers, humidifiers, lighting equipment, monitoring equipment, etc. According to current domestic and foreign survey data, in most data centers, the power consumption of computer room equipment is higher than that of IT equipment, so the design of air conditioning and refrigeration systems should reduce energy consumption.

[0003] The design water temperature difference of the water system in the conventional data center air conditioning and refrigeration system is 5-6 degrees, so the current chilled water type precision air conditioning system (as well as line cooling, cold wall, dry cooler, etc.) is designed to ensure that the supply air temperature is adjustable at 18-27 degrees, and under the premise of ensuring the supply and return air temperature difference, the inlet and outlet water temperature difference of the heat exchange coil is 5-6 degrees. Maintaining this inlet and outlet water temperature difference results in high energy consumption and high power consumption of the refrigeration equipment. Summary of the invention

[0004] The following is a summary of the subject matter of the detailed description of the present disclosure. This summary is not intended to limit the scope of the claims.

[0005] An embodiment of the present disclosure provides a high water temperature, large temperature difference heat exchange device, including a shell, and a fan and a heat exchanger arranged in the shell, the shell is provided with an air inlet and an air outlet, the fan is configured to suck gas into the shell from the air inlet, pass the gas through the heat exchanger, and then discharge the gas from the air outlet, the heat exchanger includes at least one heat exchange structure, a heat exchange structure includes at least one first inclined section and at least one second inclined section connected in series, the at least one first inclined section and the at least one second inclined section are alternately arranged along the flow direction of the gas in the shell, and adjacent first inclined sections and second inclined sections are combined to form a V shape.

[0006] In an exemplary embodiment, the heat exchanger includes at least two heat exchange structures, and the at least two heat exchange structures are arranged in sequence along a direction perpendicular to the flow direction of the gas in the housing.

[0007] In an exemplary embodiment, the heat exchanger includes a first heat exchange structure and a second heat exchange structure, each of the first heat exchange structure and the second heat exchange structure includes a first inclined section and a second inclined section connected in series, the first heat exchange structure and the second heat exchange structure are symmetrically arranged with the axis of the shell as the axis, and the first heat exchange structure and the second heat exchange structure are combined to form an X shape.

[0008] In an exemplary embodiment, the first inclined section is located on a side of the second inclined section close to the air inlet, the first inclined section includes a first water inlet section and a first water outlet section connected in series, the second inclined section includes a second water inlet section and a second water outlet section connected in series, and the first water inlet section of the first inclined section is connected in series with the second water outlet section of the second inclined section.

[0009] In an exemplary embodiment, the first heat exchange structure and the second heat exchange structure each further include a connecting section, and the connecting section connects the first water inlet section of the first inclined section and the second water outlet section of the second inclined section in series.

[0010] In an exemplary embodiment, the heat exchanger also includes a water inlet pipe, which includes a first water inlet branch and a second water inlet branch in parallel, the first water inlet branch is connected in series with the second water inlet section of the second inclined section in the first heat exchange structure, and the second water inlet branch is connected in series with the second water inlet section of the second inclined section in the second heat exchange structure.

[0011] In an exemplary embodiment, the heat exchanger also includes a return water pipe, which includes a first water outlet branch and a second water outlet branch connected in parallel, the first water outlet branch is connected in series with the first water outlet section of the first inclined section in the first heat exchange structure, and the second water outlet branch is connected in series with the first water outlet section of the first inclined section in the second heat exchange structure.

[0012] In an exemplary embodiment, a refrigeration unit is further included. The refrigeration unit is located outside the housing and is connected to the heat exchanger.

[0013] In an exemplary embodiment, the first water inlet section and the first water outlet section are arranged in parallel, and / or the second water inlet section and the second water outlet section are arranged in parallel.

[0014] In an exemplary embodiment, the heat exchanger further includes at least one fixing shaft fixing the at least one first inclined section and the at least one second inclined section within the housing.

[0015] In an exemplary embodiment, the angle formed between the first inclined section and the second inclined section is greater than 0° and less than 180°.

[0016] In an exemplary embodiment, the angle formed between the first inclined section and the second inclined section is greater than 30° and less than 120°.

[0017] In an exemplary embodiment, the heat exchange structure is a finned heat exchange tube, and a cooling medium is disposed in the finned heat exchange tube.

[0018] In an exemplary embodiment, the cooling medium includes at least one of water, Freon refrigerant, and ethylene glycol aqueous solution.

[0019] In an exemplary embodiment, the heat exchanger is sealingly connected to an inner wall of the housing.

[0020] In an exemplary embodiment, an air filter is further included. The air filter is disposed in the housing, and the air filter is located in the housing near the air inlet.

[0021] The high water temperature and large temperature difference heat exchange device of the disclosed embodiment forms a V-shape by combining the first inclined section and the second inclined section connected in series, so that the gas in the shell can pass through the first inclined section and the second inclined section in sequence, and exchange heat with the first inclined section and the second inclined section in sequence, so that the cooling medium in a heat exchange structure can exchange heat with the gas in the shell at least twice, that is, the cooling medium can exchange heat with the gas in the shell when it is in the first inclined section, and can exchange heat with the gas in the shell when it is in the second inclined section, so that the cooling medium in a heat exchange structure can repeatedly exchange heat with the gas in the shell, so that the outlet temperature of the cooling medium in the heat exchange structure can be higher than the outlet temperature of the shell outlet, or the outlet temperature of the cooling medium can be close to the outlet temperature of the shell outlet, thereby improving the cooling effect of the high water temperature and large temperature difference heat exchange device of the disclosed embodiment.

[0022] The high water temperature and large temperature difference heat exchange device of the disclosed embodiment forms a V-shape by combining the first inclined section and the second inclined section connected in series, thereby increasing the contact area between the first inclined section and the second inclined section and the gas in the shell, thereby improving the cooling effect of the high water temperature and large temperature difference heat exchange device of the disclosed embodiment. Other aspects can be understood after reading and understanding the drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0024] FIG1 is a structural schematic diagram 1 of a high water temperature and large temperature difference heat exchange device according to an embodiment of the present application;

[0025] FIG. 2 is a second structural schematic diagram of a high water temperature and large temperature difference heat exchange device according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] The embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. Note that the embodiments can be implemented in a plurality of different forms. A person of ordinary skill in the art can easily understand the fact that the methods and contents can be transformed into various forms without departing from the purpose and scope of the present disclosure. Therefore, the present disclosure should not be interpreted as being limited to the contents described in the following embodiments. In the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be arbitrarily combined with each other.

[0027] In this specification, for the sake of convenience, the words and phrases indicating the orientation or positional relationship, such as "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., are used to illustrate the positional relationship of the constituent elements with reference to the drawings. This is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction in which each constituent element is described. Therefore, it is not limited to the words and phrases described in the specification, and can be appropriately replaced according to the situation.

[0028] In this specification, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate, or the internal communication of two elements. For ordinary technicians in this field, the meanings of the above terms in this disclosure can be understood according to the circumstances.

[0029] The term "about" in the present disclosure refers to a numerical value that is not strictly limited to allow for process and measurement errors.

[0030] In order to solve the problem that the inlet and outlet water temperature difference of the heat exchange coil in the existing heat exchange equipment is small, and maintaining the inlet and outlet water temperature difference makes the refrigeration equipment have high energy consumption and high power consumption, an embodiment of the present application provides a high water temperature and large temperature difference heat exchange equipment, including a shell, and a fan and a heat exchanger arranged in the shell, the shell is provided with an air inlet and an air outlet, the fan is configured to suck gas into the shell from the air inlet, pass the gas through the heat exchanger, and then discharge the gas from the air outlet, the heat exchanger includes at least one heat exchange structure, a heat exchange structure includes at least one first inclined section and at least one second inclined section connected in series, the at least one first inclined section and the at least one second inclined section are alternately arranged along the flow direction of the gas in the shell, and adjacent first inclined sections and second inclined sections are combined to form a V shape.

[0031] The high water temperature and large temperature difference heat exchange equipment of the embodiment of the present application includes various types of air conditioning equipment and associated air radiators. For example, air conditioning box, computer room air conditioner, civil air conditioner, line cooling air conditioner, dry cooler, or other heat exchange equipment. The high water temperature and large temperature difference heat exchange equipment of the embodiment of the present application can exchange the heat or cold of the cooling medium therein with the gas in the shell. Among them, the cooling medium can include but is not limited to water, ethylene glycol solution and various types of refrigerants. The water temperature mentioned below actually includes various types of medium temperatures.

[0032] The high water temperature and large temperature difference heat exchange device of the disclosed embodiment forms a V-shape by combining the first inclined section and the second inclined section connected in series, so that the gas in the shell can pass through the first inclined section and the second inclined section in sequence, and exchange heat with the first inclined section and the second inclined section in sequence, so that the cooling medium in a heat exchange structure can exchange heat with the gas in the shell at least twice, that is, the cooling medium can exchange heat with the gas in the shell when it is in the first inclined section and the second inclined section, respectively, so that the outlet temperature of the cooling medium in the heat exchange structure can be higher than the outlet temperature of the shell outlet, or the outlet temperature of the cooling medium can be close to the outlet temperature of the shell outlet, for example, the temperature difference between the outlet temperature of the cooling medium and the outlet temperature of the shell outlet can be less than or equal to 5 degrees, thereby improving the cooling effect of the high water temperature and large temperature difference heat exchange device of the embodiment of the application.

[0033] The high water temperature and large temperature difference heat exchange equipment of the embodiment of the present application can increase the inlet and outlet temperature difference of the cooling medium in the heat exchange structure. For example, the inlet and outlet temperature difference of the cooling medium in the heat exchange structure can reach 10 degrees. Through at least one first inclined section and at least one second inclined section in a heat exchange structure, the cooling medium can exchange heat with the gas in the shell multiple times, thereby improving the cooling effect. At the same time, the flow rate of the cooling medium in the heat exchange structure can be reduced, for example, it can reach 1 / 2 of the flow rate of the conventional coil cooling medium.

[0034] The technical solution of the present invention is described in detail below through specific embodiments.

[0035] FIG1 is a structural schematic diagram 1 of a high water temperature, large temperature difference heat exchange device according to an embodiment of the present application. The high water temperature, large temperature difference heat exchange device according to an embodiment of the present application can be used as a row-level air conditioner, an air conditioning box, a cold wall, etc., and can be used to cool down places such as data centers and communication rooms. As shown in FIG1 , the high water temperature, large temperature difference heat exchange device includes a housing 100, and a fan 200 and a heat exchanger 300 disposed in the housing 100, and the housing 100 is provided with an air inlet 110 and an air outlet 120. The fan 200 is located on the side of the housing 100 close to the air outlet 120, and the fan 200 is configured to suck the gas outside the housing 100 from the air inlet 110 into the housing 100, so that the gas passes through the heat exchanger 300, and after heat exchange with the heat exchanger 300, the gas is discharged from the outside of the housing 100 through the air outlet 120.

[0036] In an exemplary embodiment, the housing 100 may be in various shapes. For example, the cross-sectional profile of the housing 100 may be a regular or irregular shape such as a rectangle, a diamond, a circle, an ellipse, a polygon, or the like.

[0037] In an exemplary embodiment, the cross-sectional profile of the housing 100 may be rectangular, the air inlet 110 and the air outlet 120 of the housing 100 may be located at opposite sides of the housing 100 , respectively, and the heat exchanger 300 is located between the air inlet 110 and the air outlet 120 .

[0038] In an exemplary embodiment, the heat exchanger 300 includes at least one heat exchange structure 310, and one heat exchange structure 310 includes at least one first inclined section 311 and at least one second inclined section 312 connected in series, and at least one first inclined section 311 and at least one second inclined section 312 are alternately arranged along the first direction D1. In one heat exchange structure 310, the inclined extension directions of the first inclined section 311 and the second inclined section 312 are different, and the adjacent first inclined sections 311 and second inclined sections 312 are connected in series to form a V shape. For example, the first direction D1 can be the flow direction of the gas in the housing 100; the flow direction of the gas in the housing 100 can be the direction from the air inlet 110 of the housing 100 to the air outlet 120.

[0039] In an exemplary embodiment, in a heat exchange structure 310, at least one first inclined section 311 and at least one second inclined section 312 can be combined to form a variety of shapes. For example, a heat exchange structure 310 includes multiple first inclined sections 311 and multiple second inclined sections 312, and the multiple first inclined sections 311 and the multiple second inclined sections 312 are alternately arranged along the first direction D1 to form a wave shape; or, a heat exchange structure 310 includes two first inclined sections 311 and one second inclined section 312, and the two first inclined sections 311 are respectively connected in series with the two ends of a second inclined section 312 to form a W shape; or, a heat exchange structure 310 includes a first inclined section 311 and a second inclined section 312 connected in series, and the first inclined section 311 and the second inclined section 312 are combined to form a V shape.

[0040] In an exemplary embodiment, the angle formed between adjacent first inclined sections 311 and second inclined sections 312 in a heat exchange structure 310 is greater than 0° and less than 180°; for example, the angle formed between adjacent first inclined sections 311 and second inclined sections 312 in a heat exchange structure 310 is greater than 30° and less than 120°.

[0041] In an exemplary embodiment, at least one first inclined section 311 and at least one second inclined section 312 can both be finned heat exchange tubes. The finned heat exchange tube includes a heat exchange tube and a plurality of fins, and a circulating cooling medium may be provided in the heat exchange tube; the heat exchange tube of the first inclined section 311 and the heat exchange tube of the second inclined section 312 are interconnected, so that the first inclined section 311 and the second inclined section 312 are connected in series. A plurality of fins are sleeved on the outer wall of the heat exchange tube, and the plurality of fins are arranged at intervals along the extension direction of the heat exchange tube. The intervals between adjacent fins form a cooling channel for gas to pass through, and the gas in the housing 100 passes through the cooling channel to exchange heat with the finned heat exchange tube.

[0042] In an exemplary embodiment, the cooling medium in the heat exchange tube includes at least one of water, Freon refrigerant, and ethylene glycol aqueous solution.

[0043] In an exemplary embodiment, the heat exchanger 300 includes at least two heat exchange structures 310, and the at least two heat exchange structures 310 are arranged in sequence along the second direction D2. The first direction D1 is different from the second direction D2. For example, the second direction D2 is perpendicular to the direction of gas flow in the housing 100 and perpendicular to the first direction D1.

[0044] FIG2 is a second structural schematic diagram of a high water temperature and large temperature difference heat exchange device according to an embodiment of the present application. In an exemplary embodiment, as shown in FIG2 , the heat exchanger 300 may include a first heat exchange structure 310a and a second heat exchange structure 310b, each of the first heat exchange structure 310a and the second heat exchange structure 310b includes a first inclined section 311, a second inclined section 312, and a connecting section 313 that connects the first inclined section 311 and the second inclined section 312 in series, and the first heat exchange structure 310a and the second heat exchange structure 310b in the first heat exchange structure 310a and the second heat exchange structure 310b are both V-shaped. The first heat exchange structure 310a and the second heat exchange structure 310b are symmetrically arranged with the axis of the housing 100 as the axis, and the first heat exchange structure 310a and the second heat exchange structure 310b in the first heat exchange structure 310a and the second heat exchange structure 310b are combined to form an X shape.

[0045] In an exemplary embodiment, as shown in FIG2 , the first heat exchange structure 310a and the second heat exchange structure 310b are symmetrically arranged with the axis of the housing 100 as the axis, and the structure of the first heat exchange structure 310a is used as an example for description. The first inclined section 311 in the first heat exchange structure 310a is located on the side of the second inclined section 312 close to the air inlet 110. The first inclined sections 311 each include a first water inlet section 3111 and a first water outlet section 3112 connected in series, and the first water inlet section 3111 and the first water outlet section 3112 are arranged side by side and parallel to each other. The second inclined section 312 includes a second water inlet section 3121 and a second water outlet section 3122 connected in series, and the second water inlet section 3121 and the second water outlet section 3122 are arranged side by side and parallel to each other. The water inlet end of the first water inlet section 3111 of the first inclined section 311 is connected in series with the second water outlet section 3122 of the second inclined section 312. The cooling medium passes through the second water inlet section 3121 of the second inclined section 312 , the second water outlet section 3122 of the second inclined section 312 , the first water inlet section 3111 of the first inclined section 311 , and the first water outlet section 3112 of the first inclined section 311 in sequence.

[0046] In the embodiment of the present application, the cooling medium is caused to flow from the second inclined section 312 to the first inclined section 311 , so that the flow direction of the cooling medium is different from the flow direction of the gas in the housing 100 , thereby improving the cooling effect.

[0047] In an exemplary embodiment, as shown in FIG. 2 , the heat exchanger 300 of the embodiment of the present application further includes a water inlet pipe 320, and the water inlet pipe 320 includes a first water inlet branch pipe and a second water inlet branch pipe in parallel, the water outlet end of the first water inlet branch pipe is connected in series with the water inlet end of the second water inlet section 3121 of the second inclined section 312 in the first heat exchange structure 310a, and the second water inlet branch pipe is connected in series with the water inlet end of the second water inlet section 3121 of the second inclined section 312 in the second heat exchange structure 310b, so that the cooling medium can flow into the first heat exchange structure 310a and the second heat exchange structure 310b respectively through the water inlet pipe 320.

[0048] In an exemplary embodiment, as shown in Figure 2, the heat exchanger 300 of the embodiment of the present application also includes a return pipe 330, and the return pipe 330 includes a first water outlet branch pipe and a second water outlet branch pipe in parallel. The first water outlet branch pipe is connected in series with the water outlet end of the first water outlet section 3112 of the first inclined section 311 in the first heat exchange structure 310a, and the second water outlet branch pipe is connected in series with the water outlet end of the first water outlet section 3112 of the first inclined section 311 in the second heat exchange structure 310b.

[0049] In an exemplary embodiment, the high water temperature and large temperature difference heat exchange device of the present application further includes a refrigeration unit, which is located outside the housing and is connected to the water inlet pipe 320 and the water return pipe 330 of the heat exchanger 300. The water inlet pipe 320 of the heat exchanger 300 is used to deliver the cooling medium in the refrigeration unit to the heat exchange structure 310 in the heat exchanger 300. The water return pipe 330 of the heat exchanger 300 is used to deliver the cooling medium after heat exchange to the refrigeration unit for refrigeration.

[0050] In an exemplary embodiment, the heat exchanger 300 further includes at least one fixed shaft 340, and the at least one fixed shaft 340 fixes the at least one first inclined section 311 and the at least one second inclined section 312 in the housing 100. For example, one fixed shaft 340 fixes two first inclined sections 311 and two second inclined sections 312, respectively, and the two first inclined sections 311 and the two second inclined sections 312 are arranged along the circumferential direction of the fixed shaft 340 to form an X shape, as shown in FIGS. 1 and 2 .

[0051] In an exemplary embodiment, the heat exchanger 300 is sealed to the inner wall of the housing 100 to ensure that the gas in the housing 100, driven by the fan 200, fully exchanges heat with the heat exchanger 300 to avoid insufficient cooling of the gas and affect the refrigeration effect.

[0052] In an exemplary embodiment, as shown in FIG1 , the high water temperature and large temperature difference heat exchange device of the present application further includes an air filter 400, which is disposed in the housing 100 and is located in the housing 100 on the side close to the air inlet 110. The air filter 400 is used to filter and purify the gas entering the housing 1, improve the cleanliness of the gas, and prevent blockage.

[0053] The power consumption of the high water temperature and large temperature difference heat exchange device of the present application embodiment and the conventional precision air conditioner are tested:

[0054] Precision air conditioning: air volume: 39000m 3 / h, water inlet temperature 10℃, water outlet temperature 15℃, air inlet parameters: dry bulb 27℃, wet bulb 19.5℃, air outlet: 17℃, cooling capacity: 151kw, water flow: 26m 3 / h.

[0055] High water temperature and large temperature difference heat exchange equipment in the present application: Air volume: 39000m 3 / h, water inlet temperature 20℃, water outlet temperature 30℃, air inlet parameters: dry bulb 37℃, wet bulb 22.1℃, air outlet: 25℃, cooling capacity 151kw, water flow rate: 12.986m 3 / h.

[0056] The high water temperature and large temperature difference heat exchange equipment of the embodiment of the present application can reduce the input power of the refrigeration unit by 28% compared with the precision air conditioner and improve the energy efficiency ratio by 38%, as shown in Table 1:

[0057] Table 1 Comparison of energy consumption of high water temperature, large temperature difference air conditioning terminal in the present embodiment and conventional precision air conditioning

[0058]

[0059] The high water temperature and large temperature difference air conditioning terminal of the embodiment of the present application can reduce the water pump power and pipe diameter of the refrigeration unit, as shown in Table 2:

[0060] Table 2 Comparison of the high water temperature and large temperature difference air conditioning terminal of the present application embodiment and the conventional precision air conditioning in reducing the water pump power and pipe diameter

[0061]

[0062]

[0063] The drawings in this disclosure only relate to the structures involved in this disclosure, and other structures can refer to the general design. In the absence of conflict, the embodiments of this disclosure, that is, the features in the embodiments, can be combined with each other to obtain new embodiments.

[0064] Those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, and all should be included in the scope of the claims of the present disclosure.

Claims

1. A high water temperature, large temperature difference heat exchange equipment, characterized in that: It includes a shell, and a fan and a heat exchanger arranged in the shell, the shell is provided with an air inlet and an air outlet, the fan is configured to suck gas into the shell from the air inlet, make the gas pass through the heat exchanger, and then discharge the gas from the air outlet, the heat exchanger includes at least two heat exchange structures, the at least two heat exchange structures are arranged in sequence along a direction perpendicular to the flow of the gas in the shell, the heat exchange structure includes at least one first inclined section and at least one second inclined section connected in series, the at least one first inclined section and the at least one second inclined section are alternately arranged along the flow direction of the gas in the shell, and the adjacent first inclined sections and second inclined sections are combined to form a V shape; the first inclined section is located on the side of the second inclined section close to the air inlet, the first inclined section includes a first water inlet section and a first water outlet section connected in series, the second inclined section includes a second water inlet section and a second water outlet section connected in series, and the first water inlet section of the first inclined section is connected in series with the second water outlet section of the second inclined section.

2. The high water temperature and large temperature difference heat exchange equipment according to claim 1, characterized in that: The heat exchanger includes a first heat exchange structure and a second heat exchange structure, each of which includes a first inclined section and a second inclined section connected in series, and the first heat exchange structure and the second heat exchange structure are symmetrically arranged with the axis of the shell as the axis, and the first heat exchange structure and the second heat exchange structure are combined to form an X shape.

3. The high water temperature and large temperature difference heat exchange equipment according to claim 2, characterized in that: The heat exchanger also includes a water inlet pipe, which includes a first water inlet branch pipe and a second water inlet branch pipe in parallel, the first water inlet branch pipe is connected in series with the second water inlet section of the second inclined section in the first heat exchange structure, and the second water inlet branch pipe is connected in series with the second water inlet section of the second inclined section in the second heat exchange structure.

4. The high water temperature and large temperature difference heat exchange equipment according to claim 2, characterized in that: The heat exchanger also includes a return pipe, which includes a first water outlet branch pipe and a second water outlet branch pipe in parallel, the first water outlet branch pipe is connected in series with the first water outlet section of the first inclined section in the first heat exchange structure, and the second water outlet branch pipe is connected in series with the first water outlet section of the first inclined section in the second heat exchange structure.

5. The high water temperature and large temperature difference heat exchange equipment according to claim 1, characterized in that: It also includes a refrigeration unit, which is located outside the shell and connected to the heat exchanger.

6. The high water temperature and large temperature difference heat exchange equipment according to claim 1, characterized in that: The first water inlet section and the first water outlet section are arranged in parallel, and / or the second water inlet section and the second water outlet section are arranged in parallel.

7. The high water temperature and large temperature difference heat exchange equipment according to any one of claims 1 to 6, characterized in that: The heat exchanger further includes at least one fixing shaft that fixes at least one first inclined section and at least one second inclined section within the housing.

8. The high water temperature and large temperature difference heat exchange equipment according to any one of claims 1 to 6, characterized in that: An angle formed between the first inclined section and the second inclined section is greater than 0° and less than 180°.

9. The high water temperature and large temperature difference heat exchange equipment according to claim 8, characterized in that: An angle formed between the first inclined section and the second inclined section is greater than 30° and less than 120°.

10. The high water temperature and large temperature difference heat exchange equipment according to any one of claims 1 to 6, characterized in that: The heat exchange structure is a finned heat exchange tube, and a cooling medium is arranged in the finned heat exchange tube.

11. The high water temperature and large temperature difference heat exchange equipment according to claim 10, characterized in that: The cooling medium includes at least one of water, Freon refrigerant and ethylene glycol aqueous solution.

12. The high water temperature and large temperature difference heat exchange equipment according to any one of claims 1 to 6, characterized in that: It also includes an air filter, which is arranged in the shell and located on one side of the shell close to the air inlet.

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