An electronic cabinet emergency uninterrupted water cooling backpack system and cooling method thereof

Abstract

The present invention relates to the field of air conditioning technology, and in particular to an electronic cabinet emergency uninterrupted water-cooling backpack system and a cooling method thereof; the present invention provides an electronic cabinet emergency uninterrupted water-cooling backpack system, wherein a circulating fan is suitable for sucking air in the cabinet into a backpack cabinet; a cold storage module is fixed in the backpack cabinet, and cooling water is suitable for first flowing into the cold storage module; a conventional heat exchanger is connected to the cold storage module; a phase change heat exchanger is connected to the cold storage module; a regulating and cleaning part is fixed at the water outlet end of the conventional heat exchanger; wherein, during emergency heat dissipation, cooling water stops flowing in, and the cooling medium in the cold storage module circulates in the cold storage module and the phase change heat exchanger and undergoes phase change, and the phase change heat exchanger is suitable for cooling and exchanging heat with the hot air blown in by the circulating fan; when cleaning the heat exchange tube, a cleaning agent is transported into the conventional heat exchanger through a water inlet pipe, and the regulating and cleaning part is suitable for sealing the water outlet end of the conventional heat exchanger so that the cleaning agent flows out through a discharge pipe.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning, and in particular to an emergency uninterrupted water cooling backpack system for an electronic cabinet and a cooling method thereof. Background Art

[0002] In the cooling configuration of water-cooled high-power electronic cabinet equipment, low-temperature cooling water is passed into the radiator placed in the cabinet, and then the hot air in the cabinet is circulated and blown into the radiator through the circulating fan to cool down the air in the cabinet. In order to save space in the cabinet, the water-cooled radiator is often designed and installed on the back of the cabinet, so it is often called a "water-cooled backpack".

[0003] When a high-power electronic cabinet is running, cooling water needs to be supplied all the time. The supply of cooling water directly affects the temperature of the circulating air in the electronic cabinet. The temperature of the circulating air affects the heat dissipation effect of the electrical components (modules). Therefore, the temperature and flow rate of cooling water play a key role in the stable operation of high-power electronic cabinets.

[0004] The commonly used "water cooling backpack" (or water cooling heat dissipation module) in the prior art is only equipped with a circulating fan and a water cooling radiator. When the high-power electronic cabinet is running, cooling water needs to be continuously supplied. When the cooling water is interrupted due to an abnormality, the air in the high-power electronic cabinet cannot be cooled down and will continue to rise. The increase in the cabinet temperature will cause poor heat dissipation of the electronic devices, and then the electronic devices will shut down for protection. Therefore, it is very necessary to develop an emergency uninterrupted water cooling backpack system for electronic cabinets and a cooling method thereof. Summary of the invention

[0005] The purpose of the present invention is to provide an electronic cabinet emergency uninterrupted water cooling backpack system and a cooling method thereof.

[0006] In order to solve the above technical problems, the present invention provides an electronic cabinet emergency uninterrupted water cooling backpack system, comprising:

[0007] A backpack cabinet, a circulating fan, a cold storage module, a phase-change heat exchanger, a conventional heat exchanger and a regulating and cleaning unit, wherein the backpack cabinet is fixed to the back of the cabinet;

[0008] The circulating fan is rotatably disposed in the backpack cabinet, and the circulating fan is suitable for sucking air in the cabinet into the backpack cabinet;

[0009] The cold storage module is fixed in the backpack cabinet, and the cooling water is suitable for first flowing into the cold storage module;

[0010] The conventional heat exchanger is fixed below the cold storage module, and the conventional heat exchanger is communicated with the cold storage module;

[0011] The phase-change heat exchanger is fixed on one side of the conventional heat exchanger, and the phase-change heat exchanger is communicated with the cold storage module;

[0012] The regulating and cleaning part is fixed to the water outlet end of the conventional heat exchanger;

[0013] During normal heat dissipation, cooling water flows through the cold storage module and the conventional heat exchanger in sequence, and the conventional heat exchanger is suitable for cooling and exchanging heat with the hot air blown in by the circulating fan;

[0014] During emergency heat dissipation, the cooling water stops flowing in, and the cooling medium in the cold storage module circulates in the cold storage module and the phase change heat exchanger and undergoes phase change. The phase change heat exchanger is suitable for cooling and exchanging heat with the hot air blown in by the circulating fan;

[0015] When cleaning the heat exchange tubes, the cleaning agent is transported into the conventional heat exchanger through the water inlet pipe, and the regulating cleaning part is suitable for sealing the water outlet end of the conventional heat exchanger so that the cleaning agent flows out through the discharge pipe.

[0016] Preferably, the regulating and cleaning part comprises: a guide plate, a sealing column and a sealing member, the guide plate is horizontally fixed on the inner wall of the pipeline, and a through hole is provided on the guide plate;

[0017] The sealing column is arranged in the through hole in a liftable manner;

[0018] The sealing member is sleeved on the outer wall of the sealing column, and the lower end of the sealing member is fixed on the outer wall of the sealing column;

[0019] The sealing column moves away from the guide plate to adjust the flow rate of cooling water flowing through the guide plate;

[0020] When the sealing column moves upward and is inserted into the through hole, the sealing member is compressed and deformed to seal the gap between the guide plate and the sealing column.

[0021] Preferably, the sealing column is hollow inside, and two cover plates are provided on the upper end of the sealing column so as to be liftable.

[0022] Preferably, the cover plate is semicircular, and a limiting plate is slidably disposed inside each of the cover plates, and the outer end of the limiting plate protrudes from the sealing column.

[0023] Preferably, the through hole is conical, a slide groove is provided on the inner wall of the through hole, and the outer wall of the limiting plate is slidably disposed in the slide groove.

[0024] Preferably, a sealing groove matched with the limiting plate is provided on the outer wall of the sealing column, a sealing strip is fixed in the sealing groove, and the upper end of the sealing strip is fixed on the limiting plate.

[0025] Preferably, a plurality of water spray holes are provided on the cover plate, and when the cover plate moves into the sealing column, the liquid in the sealing column is suitable for being sprayed toward the guide plate through the water spray holes.

[0026] Preferably, a cold storage medium is provided in the cold storage module, and the cold storage medium is n-heptadecane.

[0027] Preferably, the phase change heat exchanger and the conventional heat exchanger are arranged in parallel, and the phase change heat exchanger is arranged on the backpack cabinet near the air outlet.

[0028] On the other hand, the present invention also provides a cooling method for an electronic cabinet emergency uninterrupted water cooling backpack system, comprising the following steps:

[0029] During normal heat dissipation, cooling water flows into the cold storage module, and then flows into the conventional heat exchanger after passing through the cold storage module;

[0030] The cooling water flows through the cold storage module, and the cold storage medium in the cold storage module exchanges heat with the cooling water. The cooling water absorbs the heat of the cold storage medium, and the cold storage medium releases heat and changes from liquid to solid, thereby storing cold for emergency use.

[0031] The circulating fan is suitable for sucking the hot air in the cabinet into the backpack cabinet, and the hot air undergoes heat exchange at the conventional heat exchanger, and the conventional heat exchanger is suitable for cooling the hot air so that the cooled air is suitable for flowing into the cabinet;

[0032] In emergency heat dissipation, when the cooling water temperature is out of control or the source cannot be guaranteed, the water supply valve will be closed in abnormal state;

[0033] At this time, the cold storage module and the phase change heat exchanger start working, and the circulating fan drives the hot air to pass through the phase change heat exchanger. The R134A in the phase change heat exchanger absorbs heat and undergoes phase change, taking away the heat in the backpack cabinet. The vaporized R134A rises to the cold storage module and exchanges heat with the cold storage medium in the cold storage module. The cold storage medium absorbs heat and liquefies from solid state, and R134A releases heat and changes from gas to liquid state, and then flows back to the phase change heat exchanger. Repeat the above cycle to achieve heat dissipation of the cabinet in an abnormal state.

[0034] When cleaning and descaling the cooling water pipes in the cold storage module and the conventional heat exchanger, the sealing column moves upward, squeezes the sealing member to deform, and seals the guide plate, and the cleaning agent in the cooling water pipe is suitable for being discharged through the discharge port on the side wall;

[0035] After cleaning is completed, the sealing column continues to move upward, and the sealing column moves upward relative to the cover plate, so that the liquid in the sealing column is sprayed onto the guide plate through the water spray port, so as to achieve the effect of cleaning the guide plate.

[0036] The beneficial effect of the present invention is that an electronic cabinet emergency uninterrupted water cooling backpack system of the present invention, through the setting of a cold storage module, a phase change heat exchanger and an adjustment and cleaning part, can provide cold capacity for the electronic cabinet uninterruptedly when the temperature of the working cooling water of the electronic components in the cabinet is out of control or the cooling water supply cannot be guaranteed, thereby ensuring the cooling of the circulating air in the electronic cabinet, thereby ensuring the normal operation of the electronic components and the normal progress of combat missions. The electronic cabinet emergency uninterrupted water cooling backpack not only ensures the uninterrupted combat mission, but also ensures the cooling effect of the core components of high-power electronic equipment and improves the life of the components. The setting of the adjustment and cleaning part further improves the heat exchange effect by controlling the water outlet flow of the conventional radiator; when cleaning the internal pipes, it can also prevent the cleaning agent from flowing into the circulating water tank.

[0037] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practicing the present invention.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 It is a three-dimensional diagram of a preferred embodiment of an electronic cabinet emergency uninterrupted water cooling backpack system of the present invention;

[0041] Figure 2 is a schematic diagram of a cold storage module and a phase change heat exchanger of the present invention;

[0042] Figure 3 is a longitudinal cross-sectional view of the regulating and cleaning portion of the present invention;

[0043] Figure 4 is a three-dimensional diagram of the limit plate and the sealing member of the present invention;

[0044] Figure 5 is an internal cross-sectional view of the regulating and cleaning portion of the present invention;

[0045] Figure 6 It is a longitudinal cross-sectional view of the guide plate of the present invention.

[0046] In the figure:

[0047] 1. Backpack cabinet;

[0048] 2. Circulation fan;

[0049] 3. Cold storage module; 4. Phase change heat exchanger; 5. Conventional heat exchanger;

[0050] 6. Adjust the cleaning part; 61. Guide plate; 62. Sealing column; 63. Sealing member; 64. Through hole; 65. Cover plate; 66. Limiting plate; 67. Slide groove; 68. Sealing strip. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] like Figures 1 to 6As shown, some embodiments provide an emergency uninterrupted water-cooling backpack system for an electronic cabinet, comprising: a backpack cabinet 1, a circulating fan 2, a cold storage module 3, a phase change heat exchanger 4, a conventional heat exchanger 5 and a regulating and cleaning part 6, wherein the backpack cabinet 1 is fixed to the back of the cabinet; an air inlet and an air outlet are provided on the backpack cabinet 1, and the air inlet and the air outlet are respectively connected to the cabinet; the circulating fan 2 is rotatably arranged in the backpack cabinet 1, and the circulating fan 2 is suitable for sucking the air in the cabinet into the backpack cabinet 1; the hot air flows in the backpack cabinet 1 toward the air outlet, and the phase change heat exchanger 4 and the conventional heat exchanger 5 are arranged at the air outlet. The cold storage module 3 is fixed in the backpack cabinet 1, and the cooling water is suitable for flowing into the cold storage module 3 first; the conventional heat exchanger 5 is fixed below the cold storage module 3, and the conventional heat exchanger 5 is communicated with the cold storage module 3; the phase change heat exchanger 4 is fixed on one side of the conventional heat exchanger 5, and the phase change heat exchanger 4 is communicated with the cold storage module 3; the regulating and cleaning part is fixed at the water outlet end of the conventional heat exchanger 5; wherein, during normal heat dissipation, the cooling water flows through the cold storage module 3 and the conventional heat exchanger 5 in sequence, and the conventional heat exchanger 5 is suitable for cooling and exchanging heat with the hot air blown in by the circulating fan 2; during emergency heat dissipation, the cooling water stops flowing in, and the cooling medium in the cold storage module 3 circulates in the cold storage module 3 and the phase change heat exchanger 4 and undergoes phase change, and the phase change heat exchanger 4 is suitable for cooling and exchanging heat with the hot air blown in by the circulating fan 2; when cleaning the heat exchange tube, the cleaning agent is transported into the conventional heat exchanger 5 through the water inlet pipe, and the regulating and cleaning part 6 is suitable for sealing the water outlet end of the conventional heat exchanger 5 so that the cleaning agent flows out through the discharge pipe. Through the setting of the cold storage module 3, the phase change heat exchanger 4 and the regulating and cleaning part 6, when the temperature of the working cooling water of the electronic components in the cabinet is out of control or the cooling water supply cannot be guaranteed, the electronic cabinet can be continuously provided with cold capacity to ensure the cooling of the circulating air in the electronic cabinet, thereby ensuring the normal operation of the electronic components and the normal progress of the combat mission. The electronic cabinet emergency uninterrupted water cooling backpack not only ensures the uninterrupted combat mission, but also ensures the cooling effect of the core components of high-power electronic equipment and improves the life of the components. The setting of the regulating and cleaning part 6 further improves the heat exchange effect by controlling the water outlet flow of the conventional radiator; when cleaning the internal pipes, it can also prevent the cleaning agent from flowing into the circulating water tank.

[0053] Reference Figure 3The regulating and cleaning part 6 includes: a guide plate 61, a sealing column 62 and a sealing member 63. The guide plate 61 is horizontally fixed on the inner wall of the pipeline, and a through hole 64 is provided on the guide plate 61. The pipeline here refers to the pipeline connecting the water outlet of the conventional heat exchanger 5 with the circulating water tank. The sealing column 62 can be raised and lowered in the through hole 64; the sealing member 63 is sleeved on the outer wall of the sealing column 62, and the lower end of the sealing member 63 is fixed on the outer wall of the sealing column 62; wherein, the sealing column 62 moves in a direction away from the guide plate 61 to adjust the flow rate of the cooling water flowing through the guide plate 61; by adjusting the spacing between the sealing column 62 and the through hole 64 to adjust the flow rate of the cooling water flowing outward from the conventional heat exchanger 5, the residence time of the cooling water in the conventional heat exchanger 5 can be extended, and at the same time, the cooling water will not affect the cold storage of the cold storage module 3. When the sealing column 62 moves upward and is inserted into the through hole 64, the sealing member 63 is compressed and deformed to seal the gap between the guide plate 61 and the sealing column 62. After the sealing column 62 is completely separated from the through hole 64, the flowing cooling water can also flush the outer wall of the sealing member 63, thereby preventing impurities from being retained on the sealing member 63 and improving the sealing effect of the sealing member 63 on the guide plate 61 and the sealing column 62.

[0054] Reference Figure 4 , the sealing column 62 is hollow inside, and two cover plates 65 are provided at the upper end of the sealing column 62 so as to be liftable. The sealing column 62 is suitable for carrying liquid, and a positioning plate is fixed at the lower end of the sealing column 62, the diameter of which is larger than the diameter of the sealing column 62, and the lower end of the sealing member 63 is fixed on the positioning plate. The cover plates 65 are semicircular, and a limit plate 66 is slidably provided inside each of the cover plates 65, and the outer end of the limit plate 66 protrudes from the sealing column 62. The cover plate 65 is suitable for moving up and down along the axial direction of the sealing column 62 inside the sealing column 62; the limit plate 66 is suitable for moving along the radial direction of the cover plate 65. When the sealing column 62 moves vertically upward in the through hole 64, the two limit plates 66 can gradually move toward each other. When the sealing column 62 moves in a direction away from the guide plate 61, the ends of the two limit plates 66 gradually move away from each other, so that the liquid in the pipeline can flow into the sealing column 62.

[0055] Preferably, the through hole 64 is tapered, and the aperture of the through hole 64 gradually increases from top to bottom. A slide groove 67 is provided on the inner wall of the through hole 64, and the outer wall of the limit plate 66 is slidably arranged in the slide groove 67. The slide groove 67 is arranged axially along the guide plate 61, and when the sealing column 62 moves vertically upward along the through hole 64, the outer wall of the limit plate 66 is guided by the side wall of the slide groove 67, and the two limit plates 66 arranged opposite to each other can move toward each other.

[0056] Reference Figure 5In order to facilitate the lifting and lowering movement of the cover surface in the sealing column 62, a sealing groove adapted to the limiting plate 66 is provided on the outer wall of the sealing column 62, and the sealing groove is provided along the axial direction of the sealing column 62. A sealing strip 68 is fixed in the sealing groove, and the upper end of the sealing strip 68 is fixed on the limiting plate 66. The two side walls of the sealing strip 68 abut against the side walls of the sealing groove, and the sealing strip 68 is suitable for sealing the sealing groove. After the limiting plate 66 is limited by the slide groove 67, as the sealing column 62 continues to move upward, the cover plate 65 is suitable for moving toward the bottom of the sealing column 62, and the limiting plate 66 is suitable for squeezing the sealing strip 68 for compression deformation. In the process of the cover plate 65 moving toward the bottom of the sealing column 62, the liquid in the sealing column 62 is suitable for spraying to the guide plate 61 through the water spray hole, so as to achieve the effect of cleaning the guide plate 61.

[0057] The cover plate 65 is provided with a plurality of water spray holes. When the cover plate 65 moves into the sealing column 62, the liquid in the sealing column 62 is suitable to be sprayed toward the guide plate 61 through the water spray holes. When the two limit plates 66 move away from each other, the liquid in the pipeline is suitable to flow into the sealing column 62. When the sealing column 62 moves upward and protrudes from the upper end of the guide plate 61, the ends of the two limit plates 66 abut against each other, and the liquid in the sealing column 62 is suitable to be sprayed upward through the water spray holes.

[0058] The cold storage module is provided with a cold storage medium, which is n-heptadecane. N-heptadecane is a colorless liquid with high latent heat and low melting point. Its density is 0.77g / ml and its melting point is 20℃~22℃. The cold storage module 3 is filled with about 5.733kg of heptadecane as a phase change cold storage material, and its maximum cold storage capacity can reach 1146kj.

[0059] Reference Figure 2 The phase change heat exchanger 4 and the conventional heat exchanger 5 are arranged in parallel, and the phase change heat exchanger 4 is arranged near the air outlet of the backpack cabinet 1. During normal heat dissipation, after the hot air flows through the conventional radiator, it passes through the phase change heat exchanger 4. At this time, the conventional radiator has already cooled the hot air; and when the conventional radiator stops working, the phase change radiator will perform heat exchange on the hot air when the hot air flows through the phase change radiator.

[0060] Some embodiments provide a cooling method for an electronic cabinet emergency uninterrupted water cooling backpack system, and the specific cooling method is as follows:

[0061] During normal heat dissipation, the cooling water flows into the cold storage module 3, and then flows into the conventional heat exchanger 5 after passing through the cold storage module 3;

[0062] The cooling water flows through the cold storage module 3, and the cold storage medium in the cold storage module 3 exchanges heat with the cooling water. The cooling water absorbs the heat of the cold storage medium, and the cold storage medium releases heat and changes from liquid to solid, thereby storing cold for emergency use.

[0063] The circulating fan 2 is suitable for sucking the hot air in the cabinet into the backpack cabinet 1, and the hot air undergoes heat exchange at the conventional heat exchanger 5, and the conventional heat exchanger 5 is suitable for cooling the hot air so that the cooled air is suitable for flowing into the cabinet;

[0064] In emergency heat dissipation, when the cooling water temperature is out of control or the source cannot be guaranteed, the water supply valve will be closed in abnormal state;

[0065] At this time, the cold storage module 3 and the phase change heat exchanger 4 start to work, and the circulating fan 2 drives the hot air to pass through the phase change heat exchanger 4. The R134A in the phase change heat exchanger 4 absorbs heat and undergoes phase change, taking away the heat in the backpack cabinet 1. The vaporized R134A rises to the cold storage module 3 and exchanges heat with the cold storage medium in the cold storage module 3. The cold storage medium absorbs heat and liquefies from solid state, and R134A releases heat and changes from gaseous state to liquid state, and then flows back to the phase change heat exchanger 4. Repeat the above cycle to achieve heat dissipation of the cabinet in an abnormal state.

[0066] When cleaning and descaling the cooling water pipes in the cold storage module 3 and the conventional heat exchanger 5, the sealing column 62 moves upward, and the sealing column 62 squeezes the sealing member 63 to deform, so as to seal the guide plate 61, and the cleaning agent in the cooling water pipe is suitable for being discharged through the discharge port of the side wall;

[0067] After cleaning, the sealing column 62 continues to move upward, and the sealing column 62 moves upward relative to the cover plate 65, so that the liquid in the sealing column 62 is sprayed onto the guide plate 61 through the water spray port, so as to achieve the effect of cleaning the guide plate 61.

[0068] All devices (parts without specific structure) selected in this application are universal standard parts or parts known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods. In addition, the software programs involved in this application are all prior art, and this application does not involve any improvement to the software programs.

[0069] In the description of the embodiments of the present invention, 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 medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0071] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0072] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0073] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0074] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An electronic cabinet emergency uninterrupted water cooling backpack system, characterized in that: include: A backpack cabinet (1), a circulating fan (2), a cold storage module (3), a phase change heat exchanger (4), a conventional heat exchanger (5) and a regulating and cleaning unit (6), wherein the backpack cabinet (1) is fixed to the back of the cabinet; The circulating fan (2) is rotatably arranged in the backpack cabinet (1), and the circulating fan (2) is suitable for sucking air in the cabinet into the backpack cabinet (1); The cold storage module (3) is fixed in the backpack cabinet (1), and cooling water is suitable for first flowing into the cold storage module (3); The conventional heat exchanger (5) is fixed below the cold storage module (3), and the conventional heat exchanger (5) is in communication with the cold storage module (3); The phase change heat exchanger (4) is fixed on one side of the conventional heat exchanger (5), and the phase change heat exchanger (4) is in communication with the cold storage module (3); The regulating and cleaning part (6) is fixed at the water outlet end of the conventional heat exchanger (5); During normal heat dissipation, cooling water flows through the cold storage module (3) and the conventional heat exchanger (5) in sequence, and the conventional heat exchanger (5) is suitable for cooling and exchanging heat with the hot air blown in by the circulating fan (2); During emergency heat dissipation, the cooling water stops flowing in, and the cooling medium in the cold storage module (3) circulates in the cold storage module (3) and the phase change heat exchanger (4) and undergoes phase change. The phase change heat exchanger (4) is suitable for cooling and exchanging heat with the hot air blown in by the circulating fan (2); When cleaning the heat exchange tube, a cleaning agent is delivered into the conventional heat exchanger (5) through the water inlet pipe, and the regulating cleaning portion (6) is suitable for sealing the water outlet end of the conventional heat exchanger (5) so that the cleaning agent flows out through the discharge pipe; The regulating and cleaning portion (6) comprises: a guide plate (61), a sealing column (62) and a sealing member (63); the guide plate (61) is horizontally fixed to the inner wall of the pipeline; and a through hole (64) is formed on the guide plate (61); The sealing column (62) is arranged in the through hole (64) in a liftable manner; The sealing member (63) is sleeved on the outer wall of the sealing column (62), and the lower end of the sealing member (63) is fixed to the outer wall of the sealing column (62); The sealing column (62) moves in a direction away from the guide plate (61) to adjust the flow rate of cooling water flowing through the guide plate (61); When the sealing column (62) moves upward and is inserted into the through hole (64), the sealing member (63) is compressed and deformed to seal the gap between the guide plate (61) and the sealing column (62).

2. An electronic cabinet emergency uninterrupted water cooling backpack system as claimed in claim 1, characterized in that: The sealing column (62) is hollow inside, and two cover plates (65) are provided on the upper end of the sealing column (62) in a liftable manner.

3. An electronic cabinet emergency uninterrupted water cooling backpack system as claimed in claim 2, characterized in that: The cover plates (65) are semicircular in shape, and a limiting plate (66) is slidably disposed inside each of the cover plates (65), with the outer end of the limiting plate (66) protruding from the sealing column (62).

4. An electronic cabinet emergency uninterrupted water cooling backpack system as claimed in claim 3, characterized in that: The through hole (64) is tapered, and a slide groove (67) is provided on the inner wall of the through hole (64), and the outer wall of the limiting plate (66) is slidably disposed in the slide groove (67).

5. An electronic cabinet emergency uninterrupted water cooling backpack system as claimed in claim 4, characterized in that: The outer wall of the sealing column (62) is provided with a sealing groove matched with the limiting plate (66), a sealing strip (68) is fixed in the sealing groove, and the upper end of the sealing strip (68) is fixed on the limiting plate (66).

6. An electronic cabinet emergency uninterrupted water cooling backpack system as claimed in claim 5, characterized in that: The cover plate (65) is provided with a plurality of water spray holes. When the cover plate (65) moves into the sealing column (62), the liquid in the sealing column (62) is sprayed toward the guide plate (61) through the water spray holes.

7. An electronic cabinet emergency uninterrupted water cooling backpack system as claimed in claim 6, characterized in that: A cold storage medium is arranged in the cold storage module (3), and the cold storage medium is n-heptadecane.

8. An electronic cabinet emergency uninterrupted water cooling backpack system as claimed in claim 7, characterized in that: The phase-change heat exchanger (4) and the conventional heat exchanger (5) are arranged in parallel, and the phase-change heat exchanger (4) is arranged on the backpack cabinet (1) near the air outlet.

9. A cooling method for an electronic cabinet emergency uninterrupted water cooling backpack system, characterized in that: Using an electronic cabinet emergency uninterrupted water cooling backpack system as described in any one of claims 1 to 8 comprises the following steps: During normal heat dissipation, cooling water flows into the cold storage module (3), and then flows through the cold storage module (3) and then into the conventional heat exchanger (5); The cooling water flows through the cold storage module (3), and the cold storage medium in the cold storage module (3) exchanges heat with the cooling water. The cooling water absorbs heat from the cold storage medium, and the cold storage medium releases heat and changes from liquid to solid, thereby storing cold for use in an emergency. The circulating fan (2) is suitable for sucking hot air in the cabinet into the backpack cabinet (1), and the hot air undergoes heat exchange at the conventional heat exchanger (5). The conventional heat exchanger (5) is suitable for cooling the hot air so that the cooled air is suitable for flowing into the cabinet; In emergency heat dissipation, when the cooling water temperature is out of control or the source cannot be guaranteed, the water supply valve will be closed in abnormal state; At this time, the cold storage module (3) and the phase change heat exchanger (4) start to work, the circulating fan (2) drives the hot air to pass through the phase change heat exchanger (4), the R134A in the phase change heat exchanger (4) absorbs heat and undergoes phase change, taking away the heat in the backpack cabinet (1), and the vaporized R134A rises into the cold storage module (3) and exchanges heat with the cold storage medium in the cold storage module (3), the cold storage medium absorbs heat and turns from solid to liquefied, and the R134A releases heat and turns from gas to liquid, and then flows back into the phase change heat exchanger (4); the above cycle is repeated to achieve heat dissipation of the cabinet in an abnormal state; When cleaning and descaling the cooling water pipelines in the cold storage module (3) and the conventional heat exchanger (5), the sealing column (62) moves upward, and the sealing column (62) squeezes the sealing member (63) to deform, thereby sealing the guide plate (61), and the cleaning agent in the cooling water pipeline is suitable for being discharged through the discharge port of the side wall; After cleaning is completed, the sealing column (62) continues to move upwards, and the sealing column (62) moves upwards relative to the cover plate (65), so that the liquid in the sealing column (62) is sprayed onto the guide plate (61) through the water spray hole, thereby achieving the effect of cleaning the guide plate (61).

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