Liquid-cooled phase change condenser

Abstract

The invention belongs to the technical field of efficient heat dissipation equipment, and particularly relates to a liquid-cooled phase change condenser which comprises an equipment shell. The hot steam main pipe is arranged above the inner side of the equipment shell, and a hot steam inlet is formed in one end of the hot steam main pipe; the top end of the condensation pipe assembly is communicated with the middle of the hot steam main pipe, and the bottom end of the condensation pipe assembly is communicated with a condensate recovery part; the condensation pipe heat dissipation part is arranged in the equipment shell and used for cooling the condensation pipe assembly, and the condensation pipe heat dissipation part adopts a spraying heat dissipation mode or an infiltration heat dissipation mode; hot steam vaporized through heat absorption of an evaporator sequentially enters the hot steam main pipe and the condensation pipe assembly through the hot steam inlet, and the condensation pipe assembly is cooled through the condensation pipe heat dissipation part, so that the hot steam passing through the condensation pipe assembly is liquefied and flows towards the condensate recovery part. The device has the characteristics of low fan power consumption, high air inlet efficiency, convenience in maintenance and low noise.

Description

Technical Field

[0001] The invention belongs to the technical field of high-efficiency heat dissipation equipment, and in particular relates to a liquid-cooled phase-change condenser. Background Art

[0002] Compared with traditional single-phase fluid condenser equipment, the use of phase change medium transmission and heat transfer technology has a greater energy-saving advantage. It uses the working medium vapor-liquid phase change cycle to transfer heat, so that the working medium absorbs heat at the evaporator end and changes to vapor state, flows into the outdoor cooling equipment through the steam pipe, condenses into liquid state, and flows back to the evaporator to continue absorbing heat and evaporating. One of the most important equipment in the working process of this heat dissipation system is the phase change condenser.

[0003] The existing single-phase fluid condenser pushes the hot fluid into the internal heat exchange tube by pumping, so that it exchanges heat with the external refrigerant through the wall. It requires a large power to drive the cooling mechanism outside the tower into the tower to exchange heat with the hot fluid in the packing area. There are generally problems such as high power consumption of water pumps and fans, inconvenient maintenance, low air intake efficiency, and high noise. Therefore, a liquid-cooled phase change condenser is urgently needed to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a liquid-cooled phase-change condenser to solve the above-mentioned problems.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A liquid-cooled phase-change condenser, comprising:

[0007] Equipment housing;

[0008] A hot steam main pipe is arranged on the upper inner side of the equipment shell, and a hot steam inlet is provided at one end of the hot steam main pipe;

[0009] A condenser pipe assembly, the top end of which is connected to the middle of the hot steam main pipe, and the bottom end of which is connected to a condensate recovery part;

[0010] A condenser heat dissipation part is arranged in the device housing and is used to cool the condenser assembly. The condenser heat dissipation part adopts a spray heat dissipation method or an immersion heat dissipation method;

[0011] The hot steam vaporized by absorbing heat from the evaporator enters the hot steam main pipe and the condenser assembly in sequence through the hot steam inlet. The condenser assembly is cooled by the condenser heat dissipation part so that the hot steam passing through the condenser assembly is liquefied and flows to the condensate recovery part.

[0012] Optionally, the other end of the hot steam main pipe is connected to a pressure monitoring sensor for monitoring the air pressure in the hot steam main pipe.

[0013] Optionally, the condenser tube assembly includes a plurality of condenser tubes arranged at equal intervals, the top ends of the condenser tubes are connected to the middle part of the hot steam main tube, and the bottom ends of the condenser tubes are connected to the condensate recovery part.

[0014] Optionally, the inner wall of the condenser is subjected to hydrophobic treatment.

[0015] Optionally, the outer wall of the condenser is provided with fins.

[0016] Optionally, the condensate recovery unit includes a condensate recovery device, the top of the condensate recovery device is connected to the bottom ends of the plurality of condensation tubes, and the bottom of the condensate recovery device is provided with a condensate outlet.

[0017] Optionally, the condensate recovery device is a funnel-shaped structure.

[0018] Optionally, the condenser heat dissipation part is a spray heat dissipation component, and the spray heat dissipation component includes:

[0019] A spray circulation pump is arranged at the bottom of the inner side of the equipment housing, and a liquid inlet end of the spray circulation pump is connected to the bottom of the equipment housing;

[0020] A main line of the spray system is connected to the liquid outlet of the spray circulation pump;

[0021] A plurality of spray system branch pipes are sequentially arranged along the height direction of the condenser assembly, one end of the spray system branch pipe is connected to the spray system main pipe, and the middle of the spray system branch pipe is connected to a plurality of spaced atomizing nozzles, and the atomizing nozzles are arranged toward the condenser assembly;

[0022] A liquid level sensor, fixedly connected to the outer wall of the condensate recovery device and located above the liquid inlet end of the spray circulation pump;

[0023] A plurality of variable frequency fans are rotatably arranged on the top of the equipment housing, the air inlet end of the variable frequency fan is connected to the inside of the equipment housing, and the air outlet end of the variable frequency fan is connected to the outside. The same dehumidifier is arranged at the air inlet end of the plurality of variable frequency fans, and the dehumidifier is fixedly connected to the equipment housing.

[0024] Optionally, the condenser heat dissipation part is an immersion heat dissipation component, and the immersion heat dissipation component includes:

[0025] A cooling fluid driven pump, wherein the liquid outlet end of the cooling fluid driven pump is connected to the cooling fluid inlet opened at the bottom of the device housing, and the cooling fluid enters the device housing through the cooling fluid driven pump, the top of the condenser tube assembly is located below the cooling fluid liquid level, and a cooling fluid outlet is provided on one side of the top of the device housing;

[0026] A plurality of cooling fluid spoilers are staggered and fixed in the device housing, and the plurality of cooling fluid spoilers form a continuous curved flow channel for the flow of cooling fluid, the liquid inlet end of the continuous curved flow channel is connected to the cooling fluid inlet, and the liquid outlet end of the continuous curved flow channel is connected to the cooling fluid outlet.

[0027] Optionally, a backup refrigeration device is further provided, the backup refrigeration device is used for heat exchange with the fluid passing through the main line of the spray system or the fluid entering the cooling fluid drive pump, and the backup refrigeration device includes:

[0028] A standby cold source heat exchanger, arranged for heat exchange with the fluid in the main line of the spray system or the fluid entering the cooling fluid drive pump;

[0029] The standby cold source refrigerator is connected to the standby cold source heat exchanger.

[0030] Compared with the prior art, the present invention has the following advantages and technical effects:

[0031] When in use, the condenser tube assembly is cooled and dissipated through the condenser tube heat dissipation part, and the hot steam entering from the hot steam main pipe is cooled and liquefied and flows to the condensate recovery part under the action of gravity. The condenser tube heat dissipation part adopts spray heat dissipation method or immersion heat dissipation method. Compared with traditional condensers, it avoids the problems of high fan power consumption, inconvenient maintenance, low air intake efficiency, high noise, etc., and has the characteristics of easy maintenance and low noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0033] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0035] Among them, 100, a hot steam inlet; 110, a hot steam main pipe; 200, a vertical fin condenser tube; 300, a variable frequency fan; 400, a dehumidifier; 500, a pressure monitoring sensor; 510, a liquid level sensor; 600, a condensate recovery device; 610, a condensate outlet; 620, a flow sensor; 700, a spray circulation pump; 710, a standby cold source heat exchanger; 720, a standby cold source refrigerator; 800, a spray system main line; 810, a spray system branch line; 820, atomizing nozzle; 90 0. Equipment shell one; 1100. Hot steam inlet two; 1110. Hot steam main pipe two; 1200. Vertical fin condenser two; 1300. Cooling fluid level; 1400. Cooling fluid outlet; 1500. Pressure monitoring sensor two; 1510. Liquid level sensor two; 1600. Condensate recovery device two; 1610. Condensate outlet two; 1620. Flow sensor two; 1700. Cooling fluid drive pump; 1710. Cooling fluid inlet; 1800. Cooling fluid spoiler; 1900. Equipment shell two. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Embodiment 1:

[0039] The present invention discloses a liquid-cooled phase-change condenser, comprising:

[0040] Equipment housing;

[0041] A hot steam main pipe is arranged on the upper inner side of the equipment shell, and a hot steam inlet is arranged at one end of the hot steam main pipe;

[0042] The top end of the condenser pipe assembly is connected to the middle part of the hot steam main pipe, and the bottom end of the condenser pipe assembly is connected to the condensate recovery part;

[0043] The condenser heat dissipation part is arranged in the equipment housing and is used to cool the condenser assembly. The condenser heat dissipation part adopts a spray heat dissipation method or an immersion heat dissipation method;

[0044] The hot steam vaporized by absorbing heat from the evaporator enters the hot steam main pipe and the condenser assembly in sequence from the hot steam inlet. The condenser assembly is cooled by the condenser heat dissipation part so that the hot steam passing through the condenser assembly is liquefied and flows to the condensate recovery part.

[0045] When in use, the condenser tube assembly is cooled and dissipated through the condenser tube heat dissipation part, and the hot steam entering from the hot steam main pipe is cooled and liquefied and flows to the condensate recovery part under the action of gravity. The condenser tube heat dissipation part adopts spray heat dissipation method or immersion heat dissipation method. Compared with traditional condensers, it avoids the problems of high fan power consumption, inconvenient maintenance, low air intake efficiency, high noise, etc., and has the characteristics of easy maintenance and low noise.

[0046] As an optional implementation, the other end of the hot steam main pipe is connected to a pressure monitoring sensor for monitoring the air pressure in the hot steam main pipe.

[0047] As an optional embodiment, the condenser assembly includes a plurality of condensers arranged at equal intervals, the top ends of the condensers are connected to the middle of the hot steam main pipe, and the bottom ends of the condensers are connected to the condensate recovery part.

[0048] As an optional implementation, the inner wall of the condenser is subjected to a hydrophobic treatment.

[0049] As an optional implementation, the outer wall of the condenser is provided with fins.

[0050] As an optional embodiment, the condensate recovery unit includes a condensate recovery device, the top of the condensate recovery device is connected to the bottom ends of a plurality of condensation tubes, and a condensate outlet is provided at the bottom of the condensate recovery device.

[0051] As an optional implementation, the condensate recovery device is a funnel-shaped structure.

[0052] The outside of the device is a device shell used to fix components and play a certain sealing role, and the internal space contains other components of the condenser heat dissipation system; the core component of the phase change condenser is a vertical fin condenser tube array (i.e., arranged vertically or at a certain angle);

[0053] The upper part of the vertical finned condenser tube array is connected to the hot steam main pipe, and the lower part is connected to the condensate recovery device. The upper connection adopts welding or expansion tube high-seal connection method, and point-by-point leakage rate test is required during the operation process;

[0054] The vertical finned condenser tube array is made of metal materials with good thermal conductivity such as copper or stainless steel, and the material has good compatibility with the cooling medium;

[0055] Vertical finned condenser tubes are usually made of high thermal conductivity materials (such as copper, stainless steel). The inner surface of the tube body is treated with a hydrophobic layer to facilitate the condensation of hot steam into beads and flow downward for discharge; the outer surface of the tube body is finned to improve the heat exchange efficiency and structural compactness of the condenser system.

[0056] The vertical finned condenser tube is treated with a hydrophobic layer to discharge the condensate droplets or liquid film downward in time, thus enhancing the condensation heat exchange effect. At the same time, the "up-in-down-out" arrangement makes the flow direction of the vapor phase medium the same as the flow direction of the liquid film or droplets, further reducing the thickness of the condensate liquid film and enhancing the condensation heat dissipation effect;

[0057] The vertical finned condenser tube is finned to increase the heat exchange surface. The electrochemical anti-corrosion process is used to ensure good compatibility with the external cooling medium. The hydrophilic coating design is used to make the liquid or wet cooling medium more easily adsorbed on the surface of the vertical finned condenser tube, thereby enhancing the heat exchange effect on the outside.

[0058] The vertical finned condenser tube can be adjusted in a certain range according to the overall layout of the machine, that is, the oblique arrangement is used to increase the length of the vertical finned condenser tube and the equivalent heat dissipation area, thereby improving the heat dissipation efficiency of the condenser. When arranged obliquely, the angle with the vertical direction should not be greater than ±75° (within the range of a 150° cone angle) to effectively ensure the downward reflux of the condensed liquid in the tube.

[0059] Several temperature sensors and pressure sensors are arranged on the surface of the hot steam main cavity at the top of the condenser to monitor the saturated temperature and saturated vapor pressure changes in the process of vapor-liquid working medium phase change in real time;

[0060] Similarly, a number of temperature sensors and pressure sensors are arranged on the surface of the lower condensate recovery chamber to monitor the saturation temperature and saturated vapor pressure changes during the phase change process of the vapor-liquid working medium in real time;

[0061] Further explanation: the temperature sensor range should be maintained between -30℃ and +100℃, the measurement accuracy should be no less than 0.1℃, the measurement cycle should be no less than 1s and should be adjustable; the pressure sensor range should be maintained between -0.1MPa and +0.1MPa, the measurement accuracy should be no less than 0.1Pa, the measurement cycle should be no less than 1s and should be adjustable;

[0062] The condensate recovery device is overall in the shape of a "funnel", which is convenient for collecting and gathering the liquid working medium condensed in each vertical fin condenser tube. It also has a certain liquid storage function and is equipped with a liquid level sensor.

[0063] The "funnel-shaped" condensate recovery device arranged at the bottom of the condenser has the function of utilizing the gravity field and density difference to efficiently separate the vapor and liquid working medium without consuming energy;

[0064] An ultrasonic level sensor is installed on the surface of the condensate recovery chamber at the lower part of the condenser to monitor the liquid level of the liquid working medium inside the chamber. The level sensor has two states: on and off, and is installed at a specific height of the calibrated liquid volume. An ultrasonic flow sensor is installed outside the condensate outlet pipe diameter to measure the real-time flow of the liquid working medium out of the condenser and the total flow within a certain period of time, so as to evaluate the overall heat dissipation effect and working status of the condenser. The signals collected by the level sensor and flow sensor can be transmitted remotely.

[0065] The flow sensor installed at the condensate outlet measures the mass of the liquid working fluid flowing out of the system in real time and provides feedback for adjustment parameters. At the same time, the liquid level sensor can measure the volume of the liquid working fluid in the condensate recovery device and provide feedback for adjustment parameters. Temperature sensors are arranged along the heat dissipation path of the vapor and liquid working fluid to measure and evaluate the overall temperature level and changes of the system.

[0066] In the aforementioned phase change condenser heat dissipation system, the hot steam working medium mainly includes water vapor, ammonia vapor, acetone vapor or vapor-state high enthalpy fluorochlorocarbons, etc.

[0067] The technical solution of this embodiment solves the problem of high energy consumption for outdoor heat dissipation of existing large-scale refrigeration and air conditioning, chemical equipment, supercomputing / intelligent computing centers, data rooms and other equipment. Passive and passively driven phase change heat pipes are used as the main heat dissipation channel, which does not require much energy to drive the flow of vapor phase working fluid (the heat capacity of vapor working fluid per unit mass flow rate is about hundreds of times higher than that of liquid working fluid), and can significantly reduce the energy consumption problem on the outdoor side during the operation of the heat dissipation system. The products required for the system can be prefabricated and standardized in design, with flexible installation and maintenance, stable operation, near zero noise (immersion type), and less energy consumption while improving the efficiency of the heat dissipation system. It has both economic and social benefits and has broad application prospects.

[0068] As an optional implementation, the condenser heat dissipation part is a spray heat dissipation component, and the spray heat dissipation component includes:

[0069] A spray circulation pump is arranged at the bottom of the inner side of the equipment housing, and a liquid inlet end of the spray circulation pump is connected to the bottom of the equipment housing;

[0070] The main pipeline of the spray system is connected to the liquid outlet of the spray circulation pump;

[0071] A plurality of spray system branch pipes are sequentially arranged along the height direction of the condenser assembly, one end of the spray system branch pipe is connected to the spray system main pipe, and the middle of the spray system branch pipe is connected to a plurality of spaced atomizing nozzles, and the atomizing nozzles are arranged toward the condenser assembly;

[0072] The liquid level sensor is fixedly connected to the outer wall of the condensate recovery device and is located above the liquid inlet end of the spray circulation pump;

[0073] A plurality of variable frequency fans are rotatably arranged on the top of the equipment housing, the air inlet end of the variable frequency fan is connected to the inside of the equipment housing, and the air outlet end of the variable frequency fan is connected to the outside. The same dehumidifier is arranged at the air inlet end of the plurality of variable frequency fans, and the dehumidifier is fixedly connected to the equipment housing.

[0074] When a spray cooling component is selected, a backup cold source heat exchanger and a backup cold source refrigerator are also designed. The cold source heat exchanger and the condensate outlet are installed for heat conduction. In extremely high temperature and high humidity environments, the liquid reflux medium is cooled by turning on the backup cold source refrigerator to meet the needs of uninterrupted use.

[0075] Among them, the spray condenser variable frequency fan can control the speed and air volume according to the changes in the heat dissipation load and the temperature of the vertical fin condenser tube array, and the spray circulation pump can also adjust the pump head pressure and flow according to the changes in the heat dissipation load.

[0076] As an optional implementation, the condenser heat dissipation part is an immersion heat dissipation component, and the immersion heat dissipation component includes:

[0077] A cooling fluid driving pump, wherein a liquid outlet of the cooling fluid driving pump is connected to a cooling fluid inlet provided at the bottom of the device housing, and the cooling fluid enters the device housing through the cooling fluid driving pump, the top of the condenser tube assembly is located below the cooling fluid liquid level, and a cooling fluid outlet is provided on one side of the top of the device housing;

[0078] A plurality of cooling fluid spoilers are staggered and fixed in the equipment housing, and the plurality of cooling fluid spoilers form a continuous curved flow channel for the flow of cooling fluid. The liquid inlet end of the continuous curved flow channel is connected to the cooling fluid inlet, and the liquid outlet end of the continuous curved flow channel is connected to the cooling fluid outlet.

[0079] According to the different types of heat dissipation parts of the condenser tube, the device can be divided into a spray type or an immersion type phase change condenser.

[0080] When an immersion heat dissipation component is selected, the cooling medium flow rate at the inlet and outlet of the immersion condenser can be adjusted according to the change of the heat dissipation load and the temperature of the vertical fin condenser tube array to ensure the energy efficiency of the condenser heat dissipation system.

[0081] As an optional embodiment, a backup refrigeration device is also provided, and the backup refrigeration device is used for heat exchange with the fluid passing through the main line of the spray system or the fluid entering the cooling fluid drive pump, and the backup refrigeration device includes:

[0082] A standby cold source heat exchanger is provided for heat exchange with the fluid in the main line of the spray system or the fluid entering the cooling fluid drive pump;

[0083] The standby cold source refrigerator is connected to the standby cold source heat exchanger.

[0084] The above-mentioned spray cooling components or immersion cooling components are all equipped with a backup cold source refrigerator and a backup cold source heat exchanger, which can be automatically turned on or off according to the external ambient temperature or the temperature change of the cooling medium. The switching threshold can be adjusted according to the deployment area and user needs.

[0085] Embodiment 2:

[0086] refer to Figure 1 , this embodiment is a spray type phase change condenser.

[0087] The spray type phase change condenser is mainly composed of a hot steam inlet 100, a hot steam main pipe 110, a vertical fin condenser tube 200, a variable frequency fan 300, a dehumidifier 400, a pressure monitoring sensor 500, a liquid level sensor 510, a condensate recovery device 600, a condensate outlet 610, a flow sensor 620, a spray circulation pump 700, a standby cold source heat exchanger 710, a standby cold source refrigerator 720, a spray system main line 800, a spray system branch line 810, an atomizing nozzle 820 and an equipment shell 900.

[0088] The hot steam inlet 100 and the hot steam main pipe 110 are located at the upper part of the equipment. The hot steam absorbed and vaporized by the evaporator is transported to the outdoor condenser through the hot steam inlet 100 and enters the hot steam main pipe 110 through the saturated steam pressure difference or other micro-power auxiliary devices. The hot steam is provided with a temperature sensor and a pressure monitoring sensor 500 in the cavity of the hot steam main pipe 110. The hot steam flowing into the hot steam main pipe 110 passes through the vertical fin condenser tube 200 array and is supercooled and condensed into a film or bead shape in the vertical fin condenser tube 200. After condensation, the liquid medium flows downward along the inner wall of the tube under the action of gravity or gravity component, and at the same time, the surrounding liquid medium is disturbed, resulting in droplets falling off in a larger range, thereby enhancing the condensation heat exchange effect.

[0089] The inner wall of the vertical fin condenser tube 200 is treated with hydrophobicity to further enhance the condensation heat exchange effect.

[0090] The outer wall of the vertical fin condenser tube 200 is finned to increase its equivalent heat dissipation area, and the tube rows are arranged in a staggered row.

[0091] The vertical fin condenser tube array 200 is uniformly spray-cooled by the spray circulation pump 700, the spray system main line 800, the spray system branch line 810 and the atomizing nozzle 820.

[0092] After spray cooling, the hot and humid air is sucked by the variable frequency fan 300 and discharged to the external environment after water filtering by the dehumidifier 400, completing the heat dissipation process of the condenser.

[0093] Embodiment 3:

[0094] refer to Figure 2 , this embodiment is an immersed phase change condenser.

[0095] The immersed phase change condenser includes a hot steam inlet 1100, a hot steam main pipe 1110, a vertical fin condenser tube 1200, a cooling fluid level 1300, a cooling fluid outlet 1400, a pressure monitoring sensor 1500, a liquid level sensor 1510, a condensate recovery device 1600, a condensate outlet 1610, a flow sensor 1620, a cooling fluid drive pump 1700, a cooling fluid inlet 1710, a cooling fluid spoiler 1800 and an equipment housing 1900 and other important equipment.

[0096] The hot steam inlet 1100 and the hot steam main pipe 1110 are both located at the upper part of the equipment. The hot steam vaporized by absorbing heat from the evaporator is transported to the outdoor condenser through the hot steam inlet 1100 and enters the hot steam main pipe 1110 through the saturated steam pressure difference or other micro-power auxiliary devices. A temperature sensor and a pressure monitoring sensor 1500 are arranged in the cavity of the hot steam main pipe 1110. The hot steam flowing into the hot steam main pipe 1110 passes through the vertical fin condenser tube array 1200 and is supercooled and condensed into a film or bead shape in the vertical fin condenser tube array 1200. After condensation, the liquid medium flows downward along the inner wall of the tube under the action of gravity or gravity component, and at the same time disturbs the surrounding liquid medium, causing droplets to fall off in a larger range, thereby enhancing the condensation heat exchange effect.

[0097] The inner wall of the vertical fin condenser tube 2 1200 is treated with hydrophobicity to further enhance the condensation heat exchange effect.

[0098] The outer wall of the vertical fin condenser tube 2 1200 is finned to increase its equivalent heat dissipation area. The tube row arrangement can be either sequential or staggered, and the distance between each condenser tube is not less than the tube diameter.

[0099] The second vertical fin condenser tube 1200 array is completely immersed in the liquid cooling medium, and performs convection heat exchange with the cooling medium through the outer surface of the tube wall, and the flow direction of the liquid cooling medium and the heat flow direction of the second vertical fin condenser tube 1200 are countercurrent.

[0100] The liquid cooling medium in the immersed phase change condenser is arranged with the cooling fluid inlet 1710 placed at the bottom and the cooling fluid outlet 1400 placed at the top. The cooling fluid with a lower temperature flows in from the bottom inlet, gradually absorbs heat and heats up from bottom to top, and the cooling fluid with a higher temperature flows out from the cooling fluid outlet 1400 to complete the heat transfer of the heat dissipation process.

[0101] Compared with traditional technologies, the present invention solves the problem of high outdoor heat dissipation energy consumption of existing large-scale refrigeration and air conditioning, chemical equipment, supercomputing / intelligent computing centers, data rooms and other equipment. Passive and passively driven phase change heat pipes are used as heat dissipation main pipes, which do not consume much energy to drive the flow of vapor phase working fluid (the heat carrying capacity of vapor phase working fluid per unit mass flow rate is about hundreds of times higher than that of liquid phase working fluid), and can significantly reduce the energy consumption problem on the outdoor side during the operation of the heat dissipation system. The products required for the system can be prefabricated and standardized in design, with flexible installation and maintenance, stable operation, near zero noise (immersion type), and less energy consumption while improving the efficiency of the heat dissipation system. It has both economic and social benefits and has broad application prospects.

[0102] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0103] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A liquid-cooled phase change condenser, characterized in that: include: Equipment housing; A hot steam main pipe is arranged on the upper inner side of the equipment shell, and a hot steam inlet is provided at one end of the hot steam main pipe; A condenser pipe assembly, the top end of which is connected to the middle of the hot steam main pipe, and the bottom end of which is connected to a condensate recovery part; The condenser heat dissipation part is arranged in the device housing and is used to cool the condenser assembly; the condenser heat dissipation part adopts a spray heat dissipation method or an immersion heat dissipation method; The hot steam vaporized by absorbing heat from the evaporator enters the hot steam main pipe and the condenser assembly in sequence through the hot steam inlet. The condenser assembly is cooled by the condenser heat dissipation part so that the hot steam passing through the condenser assembly is liquefied and flows to the condensate recovery part.

2. A liquid-cooled phase change condenser according to claim 1, characterized in that: The other end of the hot steam main pipe is connected to a pressure monitoring sensor for monitoring the air pressure in the hot steam main pipe.

3. A liquid-cooled phase change condenser according to claim 1, characterized in that: The condenser tube assembly comprises a plurality of condenser tubes arranged at equal intervals, the top ends of the condenser tubes are connected to the middle part of the hot steam main tube, and the bottom ends of the condenser tubes are connected to the condensate recovery part.

4. A liquid-cooled phase change condenser according to claim 3, characterized in that: The inner wall of the condenser is treated with hydrophobicity.

5. The liquid-cooled phase change condenser according to claim 3, characterized in that: The outer wall of the condenser is provided with fins.

6. The liquid-cooled phase change condenser according to claim 1, characterized in that: The condensate recovery unit comprises a condensate recovery device, the top of which is connected to the bottom ends of a plurality of condensation tubes, and the bottom of which is provided with a condensate outlet.

7. The liquid-cooled phase-change condenser according to claim 6, characterized in that: The condensate recovery device is a funnel-shaped structure.

8. The liquid-cooled phase-change condenser according to claim 6, characterized in that: The condenser heat dissipation part is a spray heat dissipation component, and the spray heat dissipation component includes: A spray circulation pump is arranged at the bottom of the inner side of the equipment housing, and a liquid inlet end of the spray circulation pump is connected to the bottom of the equipment housing; A main line of the spray system is connected to the liquid outlet of the spray circulation pump; A plurality of spray system branch pipes are sequentially arranged along the height direction of the condenser assembly, one end of the spray system branch pipe is connected to the spray system main pipe, and the middle of the spray system branch pipe is connected to a plurality of spaced atomizing nozzles, and the atomizing nozzles are arranged toward the condenser assembly; A liquid level sensor, fixedly connected to the outer wall of the condensate recovery device and located above the liquid inlet end of the spray circulation pump; A plurality of variable frequency fans are rotatably arranged on the top of the equipment housing, the air inlet end of the variable frequency fan is connected to the inside of the equipment housing, and the air outlet end of the variable frequency fan is connected to the outside. The same dehumidifier is arranged at the air inlet end of the plurality of variable frequency fans, and the dehumidifier is fixedly connected to the equipment housing.

9. The liquid-cooled phase-change condenser according to claim 1, characterized in that: The condenser heat dissipation part is an immersion heat dissipation component, and the immersion heat dissipation component includes: A cooling fluid driven pump, wherein the liquid outlet end of the cooling fluid driven pump is connected to the cooling fluid inlet opened at the bottom of the device housing, and the cooling fluid enters the device housing through the cooling fluid driven pump, the top of the condenser tube assembly is located below the cooling fluid liquid level, and a cooling fluid outlet is provided on one side of the top of the device housing; A plurality of cooling fluid spoilers are staggered and fixed in the device housing, and the plurality of cooling fluid spoilers form a continuous curved flow channel for the flow of cooling fluid, the liquid inlet end of the continuous curved flow channel is connected to the cooling fluid inlet, and the liquid outlet end of the continuous curved flow channel is connected to the cooling fluid outlet.

10. A liquid-cooled phase-change condenser according to any one of claims 8 or 9, characterized in that: A backup refrigeration device is also provided, and the backup refrigeration device is used for heat exchange with the fluid passing through the main line of the spray system or the fluid entering the cooling fluid drive pump, and the backup refrigeration device includes: A standby cold source heat exchanger, arranged for heat exchange with the fluid in the main line of the spray system or the fluid entering the cooling fluid drive pump; The standby cold source refrigerator is connected to the standby cold source heat exchanger.

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