CN110763046A - Cooling and heat dissipation system and cooling and heat dissipation method for high-temperature heat source equipment - Google Patents

Cooling and heat dissipation system and cooling and heat dissipation method for high-temperature heat source equipment Download PDF

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Publication number
CN110763046A
CN110763046A CN201911051843.3A CN201911051843A CN110763046A CN 110763046 A CN110763046 A CN 110763046A CN 201911051843 A CN201911051843 A CN 201911051843A CN 110763046 A CN110763046 A CN 110763046A
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China
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water
heat
heat exchange
cooling
heat insulation
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CN201911051843.3A
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CN110763046B (en
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蒋新波
杨历全
刘泽华
黄春华
李鹏飞
金雷
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China Nuclear 272 Uranium Industry Co ltd
University of South China
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University of South China
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78Heat insulating elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0003Exclusively-fluid systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Acoustics & Sound (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The cooling and heat dissipation system for the high-temperature heat source equipment comprises a heat insulation and cooling cover, a water cooling circulating device and a hot water shunting device; the heat insulation and cooling cover is constructed by a side wall consisting of heat insulation and cooling walls and a top wall consisting of heat insulation plates; the heat insulation and cooling wall comprises a wall unit. The cooling and heat dissipation method for the high-temperature heat source equipment comprises the following steps: the heat insulation and cooling cover is built outside the high-temperature heat source equipment; starting an air inlet fan and an exhaust fan, and continuously radiating and cooling high-temperature heat source equipment; circulating water flows circularly to continuously dissipate heat and cool the high-temperature heat source equipment. According to the invention, the high-temperature heat source equipment is covered by the heat insulation and cooling cover, and the high-temperature heat source equipment is continuously and efficiently cooled, so that the temperature of the peripheral area of the high-temperature heat source equipment is effectively reduced, the heat generated by the high-temperature heat source equipment is greatly reduced from diffusing to the periphery, the local high-temperature area is prevented from being formed in the plant, and the thermal comfort requirement of workers is met.

Description

Cooling and heat dissipation system and cooling and heat dissipation method for high-temperature heat source equipment
Technical Field
The invention relates to the field of heat dissipation and cooling systems, in particular to a cooling and heat dissipation system and a cooling and heat dissipation method for high-temperature heat source equipment.
Background
In recent years, with the development of fine, integrated and intelligent industrial production, the arrangement of production lines in industrial plants becomes more compact, and the problem brought about is that the heat production amount in the plants is greatly increased. Meanwhile, high-temperature heat source equipment with large heat production quantity is arranged in part of the factory buildings, so that the technical problem of small temperature reduction and heat dissipation inside the factory buildings is solved.
How fast, effective, timely take away the heat that the inside high temperature heat source equipment of factory building produced, guarantee each regional temperature field evenly distributed of the inside of factory building, improve workman's thermal comfort, become the problem that waits to solve in the factory building cooling heat dissipation design urgently.
The industrial factory building is often the big space, uses the air conditioner to improve the hot environment in the factory building usually, though can satisfy the cooling heat dissipation demand of high temperature heat source equipment in the factory building through increasing cold load, but the air conditioner power consumption is higher, is not conform to energy-conserving requirement to can't guarantee the evenly distributed in each regional temperature field of factory building inside, and then can't satisfy workman's thermal comfort demand.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a cooling and heat dissipation system and a cooling and heat dissipation method for high-temperature heat source equipment, and solves the problems that the thermal environment of the industrial factory building is severe, the energy consumption is high due to the adoption of an air conditioner for cooling and heat dissipation of the high-temperature heat source equipment, the uniform distribution of temperature fields in various areas in the factory building cannot be ensured, and the thermal comfort requirements of workers cannot be met.
The technical scheme of the invention is as follows: the cooling and heat dissipation system for the high-temperature heat source equipment comprises a heat insulation and cooling cover, a water cooling circulating device and a hot water shunting device;
the heat insulation and cooling cover is in a hollow prism shape, is internally provided with an equipment installation cavity and is built by a side wall consisting of a heat insulation and cooling wall and a top wall consisting of a heat insulation plate; the top wall is provided with an air outlet which communicates the inside and the outside of the heat insulation cooling cover, and an exhaust fan is arranged on the air outlet;
the heat insulation and cooling wall comprises a wall unit, a back plate, a three-way joint A, a three-way joint B, an input pipe, an output pipe and an air inlet chamber;
the wall unit comprises a heat insulation shell, a radiation metal plate and a heat exchange tube; the heat insulation shell is in a hollow cuboid shape, a heat exchange cavity is arranged in the heat insulation shell, and an opening communicated with the heat exchange cavity is formed in one side surface of the heat insulation shell; the radiation metal plate is arranged at the opening of the heat insulation shell and is positioned in the equipment installation cavity of the heat insulation and cooling cover, the radiation metal plate shields the opening part of the heat insulation shell, an air inlet and an air outlet are formed between the two opposite side edges of the radiation metal plate and the heat insulation shell respectively, and the air inlet and the air outlet are communicated to the heat exchange cavity of the heat insulation shell respectively; the heat exchange tube is repeatedly bent and arranged in the heat exchange cavity of the heat insulation shell, part of the tube section of the heat exchange tube is contacted with the radiation metal plate, and two ends of the heat exchange tube respectively extend out of the heat exchange cavity of the heat insulation shell to form a water inlet end and a water outlet end; the two wall units are arranged in parallel and are respectively arranged on the back plate through respective heat insulation shells, the water inlet ends of the two heat exchange tubes are opposite, and the water outlet ends of the two heat exchange tubes are opposite;
the three-way joint A is provided with a first end A, a second end A and a third end A, and the first end A and the second end A are respectively communicated with the water outlet ends of the two heat exchange tubes;
the tee joint B is provided with a first end B, a second end B and a third end B, and the first end B and the second end B are respectively communicated with the water inlet ends of the two heat exchange tubes;
one end of the input pipe is connected to a third end B of the three-way joint B, and the other end of the input pipe is a free end;
one end of the output pipe is connected to the third end A of the three-way joint A, and the other end of the output pipe is a free end;
the air inlet chamber is arranged at the side edge of the heat insulation shell of the wall unit and is flush with the wall unit in the thickness and height directions, the lower end of the air inlet chamber is provided with an air inlet channel for communicating the inside and the outside of the heat insulation cooling cover, and an air inlet fan is arranged in the air inlet channel;
the water-cooling circulating device comprises a water separator, a water collector, a three-way electromagnetic valve, a circulating water tank, a water-cooling type water chiller, a circulating water pump, a water feeding pump and a flow control valve B; the water separator is provided with a plurality of water outlets A and a water inlet A, and the water outlets A are communicated with the free end of the input pipe through pipelines; the water collector is provided with a plurality of water inlets B and a water outlet B, and the water inlets B are communicated with the free end of the output pipe through pipelines; the three-way electromagnetic valve is provided with a first end C, a second end C and a third end C, and the first end C is communicated with a water outlet B of the water collector through a pipeline; the circulating water tank is provided with a water inlet C, a water outlet C, a water replenishing port and a water level detection element A, and the water inlet C is communicated with a third end C of the three-way electromagnetic valve through a pipeline; the water-cooled water chiller is provided with a water inlet D and a water outlet D, the water inlet D is communicated with a water outlet C of the circulating water tank through a pipeline, and the water outlet D is communicated with a water inlet A of the water separator through a pipeline; the circulating water pump is arranged on a pipeline between a water outlet B of the water collector and a first end C of the three-way electromagnetic valve; one end of the water feeding pump is communicated with a water replenishing port of the circulating water tank through a pipeline, and the other end of the water feeding pump is communicated with an external water source through a pipeline; the flow control valve B is arranged on a pipeline between the water outlet A of the water separator and the free end of the input pipe;
the hot water shunting device comprises a hot water storage tank and a flow control valve C; the heat storage water tank is provided with a water inlet, a hot water outlet and a water level detection element B, the water inlet is communicated with a second end C of the three-way electromagnetic valve through a pipeline, one end of the flow control valve C is communicated with the hot water outlet of the heat storage water tank through a pipeline, and the other end of the flow control valve C is connected with a pipeline for outputting hot water.
The further technical scheme of the invention is as follows: the air inlet and the air outlet are respectively positioned at the upper end and the lower end of the heat exchange cavity, and the heat exchange tube is arranged in the area between the air inlet and the air outlet in the heat exchange cavity.
The invention further adopts the technical scheme that: the air inlet and the air outlet are respectively provided with a shutter with adjustable blade angles.
The further technical scheme of the invention is as follows: and an infrared heat reflection coating is arranged on the wall of the heat exchange cavity of the heat insulation shell.
The further technical scheme of the invention is as follows: and a flow control valve B is arranged on the water inlet end of the heat exchange pipe.
The further technical scheme of the invention is as follows: the wall unit also comprises a cross-flow fan and an S-shaped air deflector; the cross-flow fan is arranged in the heat exchange cavity of the heat insulation shell and is adjacent to the air inlet; the heat exchange tube is arranged in a heat exchange cavity of the heat insulation shell, the heat exchange tube is arranged in the heat exchange cavity, the S-shaped air deflectors are arranged in parallel, the S-shaped air deflectors are arranged in a region between the air inlet and the air outlet in the heat exchange cavity of the heat insulation shell in a staggered and penetrating mode, correspondingly, the S-shaped air deflectors are provided with tube penetrating holes for the heat exchange tube to penetrate through, S-shaped air channels are formed between the adjacent S-shaped air deflectors, one end of each S-shaped air channel is.
The technical scheme of the invention is as follows: the cooling and heat dissipation method for the high-temperature heat source equipment is applied to the cooling and heat dissipation system for the high-temperature heat source equipment, and comprises the following steps of:
s01, the heat insulation and cooling cover is built outside the high-temperature heat source equipment, so that the high-temperature heat source equipment is located in the equipment installation cavity of the heat insulation and cooling cover;
s02, starting an air inlet fan and an exhaust fan, enabling air with relatively low temperature outside the heat insulation and cooling cover to enter an equipment installation cavity of the heat insulation and cooling cover through the air inlet fan, exhausting the air with relatively high temperature in the equipment installation cavity to the outside of the heat insulation and cooling cover through the exhaust fan, and continuously taking away heat emitted by high-temperature heat source equipment through exchange of the air inside and outside the heat insulation and cooling cover, so that continuous heat dissipation and cooling of the high-temperature heat source equipment are realized;
in the step, an air pipe is arranged at an air outlet of the top wall of the heat insulation and cooling cover, and relatively high-temperature air exhausted by an exhaust fan is guided to the outdoor for emission through the air pipe;
s03, closing the second end C of the three-way electromagnetic valve, opening the first end C and the third end C of the three-way electromagnetic valve, starting the circulating water pump, making the circulating water in the internal pipeline of the heat dissipation and cooling system continuously circulate, and the circulating flow route is as follows: the heat exchange pipe, the water collector, the three-way electromagnetic valve, the circulating water tank, the water-cooled water chiller, the water distributor and the heat exchange pipe, firstly absorb heat and heat in the heat exchange pipe in the circulating flowing process of circulating water, then cool and cool in the water-cooled water chiller, and finally return to the heat exchange pipe to absorb heat and heat, thereby realizing the continuous heat dissipation and cooling of high-temperature heat source equipment.
The further technical scheme of the invention is as follows: in step S03, the circulation tank has an automatic water supply mechanism, and when the water level in the circulation tank is lower than the water level detection element a, the water supply pump is started to supply a predetermined amount of water from the external water source into the circulation tank through the water supply port.
The invention further adopts the technical scheme that: in step S03, the process of absorbing heat and raising temperature of the circulating water in the heat exchange pipe is as follows:
the radiation metal plate absorbs heat emitted by the high-temperature heat source equipment and transfers the heat to the heat exchange tube; on one hand, the part of the radiation metal plate, which is in contact with the tube body of the heat exchange tube, transfers heat to the heat exchange tube in a heat conduction mode, and on the other hand, the part of the radiation metal plate, which is not in contact with the heat exchange tube, transfers heat to the heat exchange tube in a radiation heat exchange mode;
meanwhile, the started cross-flow fan continuously sucks air with higher temperature into the heat exchange cavity of the heat insulation shell through the air inlet, the sucked air flows into the S-shaped air channel, carries out heat convection with the heat exchange tube with lower temperature to transfer heat to the heat exchange tube, and finally discharges the air with lower temperature from the air outlet;
meanwhile, circulating water enters the heat exchange tube through the water inlet end of the heat exchange tube, continuously absorbs heat of the heat exchange tube in the process of flowing towards the water outlet end of the heat exchange tube, continuously increases the temperature, and finally flows out of the water outlet end of the heat exchange tube.
The further technical scheme of the invention is as follows: in step S03, hot water may be output through the hot water diversion device by the following method:
a. when the water level detection element B on the heat storage water tank detects that the water level in the heat storage water tank is lower than the set water level, the second end C of the three-way electromagnetic valve is opened, and the flow control valve C is closed, so that part of circulating water discharged from the water collector is shunted to enter the heat storage water tank through the three-way electromagnetic valve; when the water level in the heat storage water tank reaches the full water level, closing the second end C of the three-way electromagnetic valve, and opening the flow control valve C to discharge hot water;
b. when the water level detecting element B on the heat storage water tank detects that the water level in the heat storage water tank is higher than the set water level, the flow control valve C is directly opened to discharge hot water.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the high-temperature heat source equipment is covered by the heat insulation and cooling cover, and the high-temperature heat source equipment is continuously and efficiently cooled, so that the temperature and heat of the peripheral area of the high-temperature heat source equipment are effectively reduced, the heat generated by the high-temperature heat source equipment is prevented from diffusing to the periphery, a local high-temperature area is prevented from being formed in the plant, and the requirement of thermal comfort of workers working in the plant is met.
2. The invention is applied to industrial plants, can reduce the initial investment and the operation energy consumption of the air conditioner, improves the thermal environment in the plants and has obvious economic value and social value.
3. The heat insulation and cooling cover is formed by assembling heat insulation and cooling walls in a modular design, and the heat insulation and cooling walls are formed by assembling wall units in a modular design, so that the heat insulation and cooling cover is convenient to transport and assemble.
4. Two heat exchange tubes in the heat insulation and temperature reduction wall are respectively connected at the water inlet end and the water outlet end through a three-way joint B, A, so that a parallel pipeline structure is formed. Compare the pipeline structure of establishing ties, the medium flow pressure in the pipeline has been reduced to the pipeline structure of parallelly connected, still makes to regulate and control the flow in any heat exchange tube in the thermal-insulated cooling wall alone through flow control valve A and becomes to realize controllable.
5. The wall unit combines three heat exchange modes of heat conduction, radiation heat exchange and convection heat exchange, and has high heat exchange efficiency;
a. on one hand, the radiation metal plate (preferably, a red copper plate) has excellent heat radiation performance and heat conduction performance, is arranged towards the high-temperature heat source equipment to absorb heat emitted by the high-temperature heat source equipment, and transmits the heat to the heat exchange tube in the form of heat radiation and heat conduction to heat the heat exchange tube, so that the heat exchange tube heats the circulating water, and the heat exchange tube transmits the heat to the circulating water in the heat exchange tube in the form of heat radiation to heat the circulating water. Circulating water enters the heat exchange tube from the water inlet end of the heat exchange tube and flows out from the water outlet end of the heat exchange tube, so that heat is taken out of the heat exchange cavity, and high-efficiency heat exchange is realized.
b. On the other hand, when the cross-flow fan starts, high-temperature air around the high-temperature heat source equipment is sucked into the heat exchange cavity through the air inlet, flows to the air outlet through the S-shaped air channel, carries out heat convection with the heat exchange tube with relatively low temperature, transfers heat to the heat exchange tube, and then is discharged from the air outlet through the cooled air, so that the heat exchange effect is further enhanced, and the thermal comfort experience of workers is improved.
The invention is further described below with reference to the figures and examples.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a heat insulating and cooling cover;
FIG. 3 is a perspective view of the insulated cooling wall from one perspective;
FIG. 4 is a perspective view of the heat insulating and cooling wall from another perspective view;
FIG. 5 is a pipeline structure diagram of the junction of two wall units in the heat insulation and cooling wall;
FIG. 6 is a perspective view of a wall unit;
FIG. 7 is a schematic view of the position relationship among the cross-flow fan, the S-shaped air deflector and the heat exchange tube in the wall unit.
Illustration of the drawings: a heat insulation cooling cover 1; an equipment housing chamber 11; a heat insulation and temperature reduction wall 12; a wall unit 121; an insulated enclosure 1211; a heat exchange cavity 12111; an infrared heat reflecting coating 12112; a radiating metal plate 1212; a heat exchange tube 1213; a water inlet end 12131; a water outlet tip 12132; the flow control valve a 12133; crossflow blower 1214; an S-shaped air deflector 1215; an air inlet 1216; an air outlet 1217; an S-shaped air duct 1218; louvers 1219; a back plate 122; a three-way joint A123; a first end a 1231; a second end a 1232; a third end a 1233; a three-way joint B124; a first end B1241; a second end B1242; a third terminal B1243; an output pipe 125; an input tube 126; an air inlet chamber 127; an air inlet passage 1271; an inlet fan 1272; a heat insulating board 13; an air outlet 14; an exhaust fan 15; a water separator 21; a water outlet A211; a water inlet A212; a water collector 22; a water inlet B221; a water outlet B222; a three-way electromagnetic valve 23; a first end C231; a second end C232; a third terminal C233; a circulation water tank 24; a water inlet C241; a water outlet C242; a water replenishment port 243; a water-cooled water chiller 25; a water inlet D251; a water outlet D252; a circulating water pump 26; a water feed pump 27; a flow control valve B28; a heat storage water tank 31; a water inlet 311; a hot water outlet 312; the flow control valve C32; PLC programmable single chip 4.
Detailed Description
Example 1:
as shown in fig. 1 to 7, the cooling system for high-temperature heat source equipment includes a heat-insulating cooling cover 1, a water-cooling circulation device, and a hot water diversion device.
The heat insulation and cooling cover 1 is in a hollow prism shape, is internally provided with an equipment installation cavity 11, and is constructed by a side wall consisting of a heat insulation and cooling wall 12 and a top wall consisting of a heat insulation plate 13. The top wall is provided with an air outlet 14 which communicates the inside and the outside of the heat insulation and temperature reduction cover 1, and an exhaust fan 15 is arranged on the air outlet 14.
The heat insulation and cooling wall 12 comprises a wall unit 121, a back plate 122, a three-way joint A123, a three-way joint B124, an input pipe 126, an output pipe 125 and an air inlet chamber 127.
The wall unit 121 includes an insulating housing 1211, a radiation metal plate 1212, heat exchange tubes 1213, a cross flow fan 1214, and an S-shaped air deflector 1215.
The heat insulating casing 1211 has a hollow rectangular parallelepiped shape, and has a heat exchanging chamber 12111 therein, and an opening communicating with the heat exchanging chamber 12111 is formed on one side surface thereof.
The radiation metal plate 1212 is installed at the opening of the heat insulation casing 1211 and located in the equipment housing cavity 11 of the heat insulation and temperature reduction cover 1, and shields the opening of the heat insulation casing 1211, and forms an air inlet 1216 and an air outlet 1217 between the opposite two sides and the heat insulation casing 1211, respectively, and the air inlet 1216 and the air outlet 1217 are communicated to the heat exchange cavity 12111 of the heat insulation casing 1211 and located at the upper end and the lower end of the heat exchange cavity 12111, respectively.
The heat exchanging pipe 1213 is repeatedly bent and disposed in the heat exchanging cavity 12111 of the heat insulating housing 1211 in the area between the air inlet 1216 and the air outlet 1217, and a portion of the pipe section contacts the radiating metal plate 1212, and both ends of the pipe section respectively extend out of the heat exchanging cavity 12111 of the heat insulating housing 1211 to form a water inlet end 12131 and a water outlet end 12132.
The crossflow blower 1214 is mounted in the heat exchange chamber 12111 of the insulated housing 1211 adjacent to the air intake 1216.
A plurality of S-shaped air deflectors 1215 are arranged in parallel in a region between an air inlet 1216 and an air outlet 1217 in a heat exchange cavity 12111 of the heat insulation shell 1211 and are arranged in a staggered and penetrating manner with the heat exchange tubes 1213, correspondingly, tube penetrating holes for the heat exchange tubes 1213 to penetrate through are arranged on the S-shaped air deflectors 1215, S-shaped air channels 1218 are formed between the adjacent S-shaped air deflectors 1215, one end of each S-shaped air channel 1218 is adjacent to the air outlet end of the cross-flow fan 1214, and the other end of each S-shaped air channel 1218 is adjacent to the air outlet.
The two wall units 121 are arranged in parallel and are respectively installed on the back plate 122 through respective heat insulation shells 1211, the water inlet ends 12131 of the two heat exchange tubes 1213 are opposite, and the water outlet ends 12132 of the two heat exchange tubes 1213 are opposite.
The three-way joint a123 is provided with a first end a1231, a second end a1232 and a third end a1233, and the first end a1231 and the second end a1232 are respectively communicated with the water outlet ends 12132 of the two heat exchange tubes 1213.
The three-way joint B124 is provided with a first end B1241, a second end B1242 and a third end B1243, and the first end B1241 and the second end B1242 are respectively communicated with the water inlet ends 12131 of the two heat exchange tubes 1213.
One end of the output pipe 125 is connected to the third end a1233 of the three-way joint a123, and the other end is a free end.
One end of the input pipe 126 is connected to the third terminal B1243 of the three-way joint B124, and the other end is a free end.
The air inlet chamber 127 is installed at the side of the heat insulation casing 1211 of the wall unit 121, is flush with the wall unit 121 in the thickness and height directions, and has an air inlet channel 1271 at the lower end thereof for communicating the inside and the outside of the heat insulation cooling cover 1, and an air inlet fan 1272 is installed in the air inlet channel 1271.
The water-cooling circulating device comprises a water separator 21, a water collector 22, a shell-and-tube heat exchanger 23, a circulating water tank 24, a water-cooled water cooler 25, a circulating water pump A26, a water feed pump A27 and a flow control valve B28.
The water separator 21 is provided with a plurality of water outlets a211 and a water inlet a212, and the water outlets a211 are communicated with the free end of the input pipe 126 through a pipeline.
The water collector 22 is provided with a plurality of water inlets B221 and a water outlet B222, and the water inlets B221 are communicated with the free end of the output pipe 125 through a pipeline.
The three-way solenoid valve 23 is provided with a first end C231, a second end C232 and a third end C233, and the first end C231 is communicated with the water outlet B222 of the water collector 22 through a pipeline.
The circulating water tank 24 is provided with a water inlet C241, a water outlet C242, a water replenishing port 243 and a water level detecting element a (not shown in the figure), and the water inlet C241 is communicated with the third end C233 of the three-way electromagnetic valve 23 through a pipeline.
The water-cooled water chiller 25 is provided with a water inlet D251 and a water outlet D252, the water inlet D251 is communicated with the water outlet C242 of the circulating water tank 24 through a pipeline, and the water outlet D252 is communicated with the water inlet A212 of the water separator 21 through a pipeline.
The circulating water pump 26 is installed on a pipeline between the water outlet B222 of the sump 22 and the first end C231 of the three-way solenoid valve 23.
The feed pump 27 has one end connected to a water replenishing port 243 of the circulation tank 24 via a pipe, and the other end connected to an external water source via a pipe.
A flow control valve B28 is mounted on the line between the outlet a211 of the water separator 21 and the free end of the inlet pipe 126.
The hot water diversion device includes the hot water storage tank 31 and the flow control valve C32. The hot water storage tank 31 is provided with a water inlet 311, a hot water outlet 312 and a water level detection element B (not shown in the figure), the water inlet 311 is communicated with a second end C232 of the three-way solenoid valve 23 through a pipeline, one end of the flow control valve C32 is communicated with the hot water outlet 312 of the hot water storage tank 31 through a pipeline, and the other end is connected with a pipeline for outputting hot water.
Preferably, the heat insulation casing 1211 is made of a polyurethane heat insulation board (PU board), which has excellent moisture-proof, waterproof, heat insulation and heat preservation effects, and can effectively prevent external heat from entering the heat exchange cavity 12111 through the heat insulation casing 1211, so that the heat exchange tubes 1213 in the heat exchange cavity 12111 can only receive heat from one side of the radiation metal plate 1212, thereby ensuring the heat exchange efficiency of the wall unit 121 for the high-temperature heat source device.
Preferably, the wall of the heat exchange cavity 12111 of the heat insulation housing 1211 is provided with an infrared heat reflection coating 12112, and the infrared heat reflection coating 12112 can reflect heat back into the heat exchange cavity 12111, so as to prevent the heat in the heat exchange cavity 12111 from directly contacting with the heat insulation housing 1211 to heat the heat insulation housing 1211, thereby preventing the heat transmission of the heat insulation housing 1211 to the outside due to temperature difference.
Preferably, the radiation metal plate 1212 is a copper plate, which has excellent heat conduction, radiation heat exchange, and convection heat exchange properties.
Preferably, the flow control valve a12133 is installed on the water inlet end 12131 of the heat exchange tube 1213 to regulate the flow and pressure inside the heat exchange tube 1213, thereby achieving the effect of regulating the heat exchange amount and the heat exchange efficiency of the wall unit 121.
Preferably, the heat exchange tubes 1213 are arranged in a staggered manner, and fluid flows in curved channels alternately contracted and expanded between the tubes in staggered arrangement, and the flow disturbance in the channels in the corridors between the tubes is severe when the tubes are arranged in an in-line manner, i.e., the heat exchange effect is stronger when the tubes are arranged in a staggered arrangement than when the tubes are arranged in an in-line manner.
Preferably, the air inlet 1216 and the air outlet 1217 are respectively provided with a louver 1219 with adjustable blade angles, which can be used for adjusting the air inlet and outlet directions.
Preferably, at least one side wall of the heat insulation and cooling cover 1 is provided with a door (not shown in the figure) for an operator to enter and exit.
Preferably, the operation of each component in the heat dissipation and cooling system is uniformly coordinated through the PLC programmable singlechip 4.
Briefly describing the working process of the invention:
the cooling and heat dissipation method for the high-temperature heat source equipment is applied to the cooling and heat dissipation system for the high-temperature heat source equipment, and comprises the following steps of:
and S01, the heat insulation and temperature reduction cover 1 is built outside the high-temperature heat source equipment, so that the high-temperature heat source equipment is positioned in the equipment installation cavity 11 of the heat insulation and temperature reduction cover 1.
S02, starting the air inlet fan 1272 and the air exhaust fan 15, enabling air with relatively low temperature outside the heat insulation and temperature reduction cover 1 to enter the equipment installation cavity 11 of the heat insulation and temperature reduction cover 1 through the air inlet fan 1272, enabling air with relatively high temperature inside the equipment installation cavity 11 to be exhausted outside the heat insulation and temperature reduction cover 1 through the air exhaust fan 15, and continuously taking away heat emitted by high-temperature heat source equipment through exchange of air inside and outside the heat insulation and temperature reduction cover 1, so that continuous heat dissipation and temperature reduction of the high-temperature heat source equipment are realized;
in this step, an air duct is installed at the air outlet 14 on the top wall of the heat insulation and cooling cover 1, and the air with relatively high temperature discharged by the exhaust fan 15 is guided to the outside (outside the plant) through the air duct to be discharged.
S03, close the second end C232 of the three-way electromagnetic valve 23, open the first end C231 and the third end C233 of the three-way electromagnetic valve 23, start the circulating water pump 26, make the circulating water in the internal pipeline of the cooling and heat dissipating system continuously circulate, and the route of the circulating flow is: the heat exchange pipe 1213-water collector 22-three-way electromagnetic valve 23-circulation water tank 24-water-cooled water chiller 25-water knockout drum 21-heat exchange pipe 1213, in the circulating process of circulating water, firstly heat up in the heat exchange pipe 1213, then cool down and cool in the water-cooled water chiller 25, finally return to the heat exchange pipe 1213 to heat up again, thus realize the continuous heat dissipation and cooling of the high temperature heat source equipment.
In this step, the circulation tank 24 has an automatic water supply mechanism, and when the water level in the circulation tank 24 is lower than the water level detection element a, the water supply pump 27 is started to supply a predetermined amount of water from the external water source into the circulation tank 24 through the water supply port 243.
In this step, the process of heat absorption and temperature rise of the circulating water in the heat exchange tube 1213 is as follows:
the radiation metal plate 1212 absorbs heat emitted from the high temperature heat source device and transfers the heat to the heat exchange tube 1213; on one hand, the heat of the part of the radiation metal plate 1212, which is in contact with the tube body of the heat exchange tube 1213, is transferred to the heat exchange tube 1213 in a heat conduction manner, and on the other hand, the heat of the part of the radiation metal plate 1212, which is not in contact with the heat exchange tube 1213, is transferred to the heat exchange tube 1213 in a radiation heat exchange manner;
meanwhile, the activated crossflow blower 1214 continuously sucks air with higher temperature into the heat exchange cavity 12111 of the heat insulation casing 1211 through the air inlet 1216, the sucked air flows into the S-shaped air channel 1218, performs convective heat exchange with the heat exchange tube 1213 with relatively lower temperature to transfer heat to the heat exchange tube 1213, and finally discharges the air with relatively lower temperature from the air outlet 1217;
meanwhile, circulating water enters the heat exchange tube 1213 through the water inlet end 12131 of the heat exchange tube 1213, continuously absorbs heat of the heat exchange tube 1213 in the process of flowing to the water outlet end 12132 of the heat exchange tube 1213, the temperature is continuously increased, and finally the circulating water flows out of the water outlet end 12132 of the heat exchange tube 1213.
In this step, hot water can be output through the hot water diversion device, and the method is as follows:
a. when the water level detection element B on the hot water storage tank 31 detects that the water level in the hot water storage tank 31 is lower than the set water level, the second end C232 of the three-way electromagnetic valve 23 is opened, and the flow control valve C32 is closed, so that a part of circulating water discharged from the water collector 22 is shunted to enter the hot water storage tank 31 through the three-way electromagnetic valve 23; when the water level in the heat storage water tank 31 reaches the full water level, the second end C232 of the three-way electromagnetic valve 23 is closed, and the flow control valve C32 is opened to discharge the hot water;
b. when the water level detecting element B on the hot water storage tank 31 detects that the water level in the hot water storage tank 31 is higher than the set water level, the flow control valve C32 is directly opened to discharge the hot water.

Claims (10)

1. The cooling and heat-dissipating system for the high-temperature heat source equipment is characterized in that: comprises a heat insulation cooling cover, a water cooling circulation device and a hot water diversion device;
the heat insulation and cooling cover is in a hollow prism shape, is internally provided with an equipment installation cavity and is built by a side wall consisting of a heat insulation and cooling wall and a top wall consisting of a heat insulation plate; the top wall is provided with an air outlet which communicates the inside and the outside of the heat insulation cooling cover, and an exhaust fan is arranged on the air outlet;
the heat insulation and cooling wall comprises a wall unit, a back plate, a three-way joint A, a three-way joint B, an input pipe, an output pipe and an air inlet chamber;
the wall unit comprises a heat insulation shell, a radiation metal plate and a heat exchange tube; the heat insulation shell is in a hollow cuboid shape, a heat exchange cavity is arranged in the heat insulation shell, and an opening communicated with the heat exchange cavity is formed in one side surface of the heat insulation shell; the radiation metal plate is arranged at the opening of the heat insulation shell and is positioned in the equipment installation cavity of the heat insulation and cooling cover, the radiation metal plate shields the opening part of the heat insulation shell, an air inlet and an air outlet are formed between the two opposite side edges of the radiation metal plate and the heat insulation shell respectively, and the air inlet and the air outlet are communicated to the heat exchange cavity of the heat insulation shell respectively; the heat exchange tube is repeatedly bent and arranged in the heat exchange cavity of the heat insulation shell, part of the tube section of the heat exchange tube is contacted with the radiation metal plate, and two ends of the heat exchange tube respectively extend out of the heat exchange cavity of the heat insulation shell to form a water inlet end and a water outlet end; the two wall units are arranged in parallel and are respectively arranged on the back plate through respective heat insulation shells, the water inlet ends of the two heat exchange tubes are opposite, and the water outlet ends of the two heat exchange tubes are opposite;
the three-way joint A is provided with a first end A, a second end A and a third end A, and the first end A and the second end A are respectively communicated with the water outlet ends of the two heat exchange tubes;
the tee joint B is provided with a first end B, a second end B and a third end B, and the first end B and the second end B are respectively communicated with the water inlet ends of the two heat exchange tubes;
one end of the input pipe is connected to a third end B of the three-way joint B, and the other end of the input pipe is a free end;
one end of the output pipe is connected to the third end A of the three-way joint A, and the other end of the output pipe is a free end;
the air inlet chamber is arranged at the side edge of the heat insulation shell of the wall unit and is flush with the wall unit in the thickness and height directions, the lower end of the air inlet chamber is provided with an air inlet channel for communicating the inside and the outside of the heat insulation cooling cover, and an air inlet fan is arranged in the air inlet channel;
the water-cooling circulating device comprises a water separator, a water collector, a three-way electromagnetic valve, a circulating water tank, a water-cooling type water chiller, a circulating water pump, a water feeding pump and a flow control valve B; the water separator is provided with a plurality of water outlets A and a water inlet A, and the water outlets A are communicated with the free end of the input pipe through pipelines; the water collector is provided with a plurality of water inlets B and a water outlet B, and the water inlets B are communicated with the free end of the output pipe through pipelines; the three-way electromagnetic valve is provided with a first end C, a second end C and a third end C, and the first end C is communicated with a water outlet B of the water collector through a pipeline; the circulating water tank is provided with a water inlet C, a water outlet C, a water replenishing port and a water level detection element A, and the water inlet C is communicated with a third end C of the three-way electromagnetic valve through a pipeline; the water-cooled water chiller is provided with a water inlet D and a water outlet D, the water inlet D is communicated with a water outlet C of the circulating water tank through a pipeline, and the water outlet D is communicated with a water inlet A of the water separator through a pipeline; the circulating water pump is arranged on a pipeline between a water outlet B of the water collector and a tube pass inlet of the shell-and-tube heat exchanger; one end of the water feeding pump is communicated with a water replenishing port of the circulating water tank through a pipeline, and the other end of the water feeding pump is communicated with an external water source through a pipeline; the flow control valve B is arranged on a pipeline between the water outlet A of the water separator and the free end of the input pipe;
the hot water shunting device comprises a hot water storage tank and a flow control valve C; the heat storage water tank is provided with a water inlet, a hot water outlet and a water level detection element B, the water inlet is communicated with a second end C of the three-way electromagnetic valve through a pipeline, one end of the flow control valve C is communicated with the hot water outlet of the heat storage water tank through a pipeline, and the other end of the flow control valve C is connected with a pipeline for outputting hot water.
2. The cooling and heat dissipating system for high temperature heat source equipment as set forth in claim 1, wherein: the air inlet and the air outlet are respectively positioned at the upper end and the lower end of the heat exchange cavity, and the heat exchange tube is arranged in the area between the air inlet and the air outlet in the heat exchange cavity.
3. The cooling and heat dissipating system for high temperature heat source equipment as set forth in claim 2, wherein: the air inlet and the air outlet are respectively provided with a shutter with adjustable blade angles.
4. A cooling and heat-dissipating system for a high-temperature heat source device as claimed in claim 3, wherein: and an infrared heat reflection coating is arranged on the wall of the heat exchange cavity of the heat insulation shell.
5. A cooling and heat-dissipating system for a high-temperature heat source apparatus as claimed in any one of claims 1 to 4, wherein: and a flow control valve B is arranged on the water inlet end of the heat exchange pipe.
6. A cooling and heat-dissipating system for a high-temperature heat source apparatus as claimed in any one of claims 1 to 5, wherein: the wall unit also comprises a cross-flow fan and an S-shaped air deflector; the cross-flow fan is arranged in the heat exchange cavity of the heat insulation shell and is adjacent to the air inlet; the heat exchange tube is arranged in a heat exchange cavity of the heat insulation shell, the heat exchange tube is arranged in the heat exchange cavity, the S-shaped air deflectors are arranged in parallel, the S-shaped air deflectors are arranged in a region between the air inlet and the air outlet in the heat exchange cavity of the heat insulation shell in a staggered and penetrating mode, correspondingly, the S-shaped air deflectors are provided with tube penetrating holes for the heat exchange tube to penetrate through, S-shaped air channels are formed between the adjacent S-shaped air deflectors, one end of each S-shaped air channel is.
7. The cooling and heat dissipation method for the high-temperature heat source equipment is applied to the cooling and heat dissipation system for the high-temperature heat source equipment in any one of claims 1 to 6, and comprises the following steps:
s01, the heat insulation and cooling cover is built outside the high-temperature heat source equipment, so that the high-temperature heat source equipment is located in the equipment installation cavity of the heat insulation and cooling cover;
s02, starting an air inlet fan and an exhaust fan, enabling air with relatively low temperature outside the heat insulation and cooling cover to enter an equipment installation cavity of the heat insulation and cooling cover through the air inlet fan, exhausting the air with relatively high temperature in the equipment installation cavity to the outside of the heat insulation and cooling cover through the exhaust fan, and continuously taking away heat emitted by high-temperature heat source equipment through exchange of the air inside and outside the heat insulation and cooling cover, so that continuous heat dissipation and cooling of the high-temperature heat source equipment are realized;
in the step, an air pipe is arranged at an air outlet of the top wall of the heat insulation and cooling cover, and relatively high-temperature air exhausted by an exhaust fan is guided to the outdoor for emission through the air pipe;
s03, closing the second end C of the three-way electromagnetic valve, opening the first end C and the third end C of the three-way electromagnetic valve, starting the circulating water pump, making the circulating water in the internal pipeline of the heat dissipation and cooling system continuously circulate, and the circulating flow route is as follows: the heat exchange pipe, the water collector, the three-way electromagnetic valve, the circulating water tank, the water-cooled water chiller, the water distributor and the heat exchange pipe, firstly absorb heat and heat in the heat exchange pipe in the circulating flowing process of circulating water, then cool and cool in the water-cooled water chiller, and finally return to the heat exchange pipe to absorb heat and heat, thereby realizing the continuous heat dissipation and cooling of high-temperature heat source equipment.
8. A cooling and heat dissipating method for a high temperature heat source device as claimed in claim 7, wherein: in step S03, the circulation tank has an automatic water supply mechanism, and when the water level in the circulation tank is lower than the water level detection element a, the water supply pump is started to supply a predetermined amount of water from the external water source into the circulation tank through the water supply port.
9. A cooling and heat dissipating method for a high-temperature heat source device as claimed in claim 7 or 8, wherein: in step S03, the process of absorbing heat and raising temperature of the circulating water in the heat exchange pipe is as follows:
the radiation metal plate absorbs heat emitted by the high-temperature heat source equipment and transfers the heat to the heat exchange tube; on one hand, the part of the radiation metal plate, which is in contact with the tube body of the heat exchange tube, transfers heat to the heat exchange tube in a heat conduction mode, and on the other hand, the part of the radiation metal plate, which is not in contact with the heat exchange tube, transfers heat to the heat exchange tube in a radiation heat exchange mode;
meanwhile, the started cross-flow fan continuously sucks air with higher temperature into the heat exchange cavity of the heat insulation shell through the air inlet, the sucked air flows into the S-shaped air channel, carries out heat convection with the heat exchange tube with lower temperature to transfer heat to the heat exchange tube, and finally discharges the air with lower temperature from the air outlet;
meanwhile, circulating water enters the heat exchange tube through the water inlet end of the heat exchange tube, continuously absorbs heat of the heat exchange tube in the process of flowing towards the water outlet end of the heat exchange tube, continuously increases the temperature, and finally flows out of the water outlet end of the heat exchange tube.
10. A cooling and heat dissipating method for a high temperature heat source device as claimed in claim 9, wherein: in step S03, hot water may be output through the hot water diversion device by the following method:
a. when the water level detection element B on the heat storage water tank detects that the water level in the heat storage water tank is lower than the set water level, the second end C of the three-way electromagnetic valve is opened, and the flow control valve C is closed, so that part of circulating water discharged from the water collector is shunted to enter the heat storage water tank through the three-way electromagnetic valve; when the water level in the heat storage water tank reaches the full water level, closing the second end C of the three-way electromagnetic valve, and opening the flow control valve C to discharge hot water;
b. when the water level detecting element B on the heat storage water tank detects that the water level in the heat storage water tank is higher than the set water level, the flow control valve C is directly opened to discharge hot water.
CN201911051843.3A 2019-10-31 2019-10-31 Cooling and radiating system and cooling and radiating method for high-temperature heat source equipment Active CN110763046B (en)

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