CN110763046B - Cooling and radiating system and cooling and radiating method for high-temperature heat source equipment - Google Patents
Cooling and radiating system and cooling and radiating method for high-temperature heat source equipment Download PDFInfo
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- CN110763046B CN110763046B CN201911051843.3A CN201911051843A CN110763046B CN 110763046 B CN110763046 B CN 110763046B CN 201911051843 A CN201911051843 A CN 201911051843A CN 110763046 B CN110763046 B CN 110763046B
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- 238000001816 cooling Methods 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 315
- 238000009413 insulation Methods 0.000 claims abstract description 46
- 230000005855 radiation Effects 0.000 claims description 28
- 238000005338 heat storage Methods 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 230000017525 heat dissipation Effects 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 15
- 230000001502 supplementing effect Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, 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
- E04B1/78—Heat insulating elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-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
- F24F5/0003—Exclusively-fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The cooling and radiating system for the high-temperature heat source equipment comprises a heat insulation and cooling cover, a water cooling circulation device and a hot water diversion device; the heat-insulating and cooling cover is formed by constructing a side wall consisting of heat-insulating and cooling walls and a top wall consisting of heat-insulating boards; the heat-insulating cooling wall comprises wall units. The cooling and radiating method for the high-temperature heat source equipment comprises the following steps of: building a heat-insulating cooling cover 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 is circulated, and the heat is continuously radiated and cooled to the high-temperature heat source equipment. According to the invention, the heat-insulating and cooling cover is used for covering the high-temperature heat source equipment, continuously and efficiently cooling the high-temperature heat source equipment, 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 formation of a local high-temperature area in a factory building is further avoided, and the thermal comfort requirement of workers is met.
Description
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 aiming at high-temperature heat source equipment.
Background
In recent years, with the development of industrial production toward refinement, integration and intellectualization, the arrangement of production lines in industrial plants is becoming more compact, and the problem is that the heat generation amount in the plants is greatly increased. Meanwhile, part of plants are internally provided with high-temperature heat source equipment with large heat generation capacity, which brings about a small technical problem for cooling and heat dissipation in the plants.
How to quickly, effectively and timely take away heat generated by high-temperature heat source equipment in a factory building, ensure uniform distribution of temperature fields in various areas in the factory building, improve thermal comfort of workers and become a problem to be solved in cooling and heat dissipation design of the factory building.
The industrial factory building often is high-volume space, uses the air conditioner to improve factory building internal heat environment generally, although can satisfy the cooling heat dissipation demand of high temperature heat source equipment in the factory building through increasing the cold load, the air conditioner power consumption is higher, does not accord with 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 heat travelling comfort demand.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a cooling and radiating system and a cooling and radiating method aiming at high-temperature heat source equipment, which solve the problems that the existing industrial factory building has severe thermal environment, the mode of cooling and radiating the high-temperature heat source equipment by adopting an air conditioner has high energy consumption, the uniform distribution of temperature fields in various areas in the factory building cannot be ensured, and the thermal comfort requirement of workers cannot be met.
The technical scheme of the invention is as follows: the cooling and radiating system for the high-temperature heat source equipment comprises a heat insulation and cooling cover, a water cooling circulation device and a hot water diversion device;
the heat-insulating cooling cover is in a hollow prismatic shape, and is internally provided with an equipment placement cavity which is formed by constructing a side wall consisting of heat-insulating cooling walls and a top wall consisting of heat-insulating boards; an exhaust outlet which communicates the inside and the outside of the heat-insulating cooling cover is arranged on the top wall, and an exhaust fan is arranged on the exhaust outlet;
the heat-insulating and cooling wall comprises a wall body 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-insulating shell and is positioned in the equipment placement cavity of the heat-insulating cooling cover, the opening of the heat-insulating shell is shielded, an air inlet and an air outlet are respectively formed between the two opposite side edges of the radiation metal plate and the heat-insulating shell, and the air inlet and the air outlet are respectively communicated to the heat exchange cavity of the heat-insulating shell; the heat exchange tube is repeatedly bent and arranged in the heat exchange cavity of the heat insulation shell, part of tube sections of the heat exchange tube are contacted with the radiation metal plate, and two ends of the heat exchange tube extend out of the heat exchange cavity of the heat insulation shell respectively 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 water outlet ends of the two heat exchange tubes;
the three-way joint B is provided with a first end head B, a second end head B and a third end head B, and the first end head B and the second end head B are respectively communicated with water inlet end heads 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 is a free end;
the air inlet chamber is arranged at the side edge of the heat insulation shell of the wall body unit and is flush with the wall body unit in the thickness and height directions, the lower end of the air inlet chamber is provided with an air inlet channel which communicates 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 circulation 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 supply 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 a pipeline; the three-way electromagnetic valve is provided with a first end head C, a second end head C and a third end head C, and the first end head 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 supplementing port and a water level detection element A, and the water inlet C is communicated with a third end head 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 the water outlet B of the water collector and the first end head C of the three-way electromagnetic valve; one end of the water supply pump is communicated with a water supplementing port of the circulating water tank through a pipeline, and the other end of the water supply 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 diversion device comprises a heat storage water 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 head 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 invention further adopts the technical scheme that: 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 angle.
The invention further adopts the technical scheme that: an infrared heat reflection coating is arranged on the wall of the heat exchange cavity of the heat insulation shell.
The invention further adopts the technical scheme that: the water inlet end of the heat exchange tube is provided with a flow control valve B.
The invention further adopts the technical scheme that: 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 S-shaped air deflectors are arranged in parallel in the area between the air inlet and the air outlet in the heat exchange cavity of the heat insulation shell, are alternately arranged with the heat exchange tubes, and correspondingly are provided with through holes for the heat exchange tubes to pass through, an S-shaped air duct is formed between the adjacent S-shaped air deflectors, one end of the S-shaped air duct is adjacent to the air outlet end of the through-flow fan, and the other end of the S-shaped air duct is adjacent to the air outlet.
The technical scheme of the invention is as follows: the cooling and radiating method for the high-temperature heat source equipment is applied to the cooling and radiating system for the high-temperature heat source equipment, and comprises the following steps of:
s01, building a heat-insulating cooling cover outside high-temperature heat source equipment, so that the high-temperature heat source equipment is positioned in an equipment placement cavity of the heat-insulating cooling cover;
s02, starting an air inlet fan and an exhaust fan, enabling air with relatively low temperature outside the heat-insulating and cooling cover to enter an equipment installation cavity of the heat-insulating and cooling cover through the air inlet fan, discharging air with relatively high temperature inside the equipment installation cavity outside the heat-insulating and cooling cover through the exhaust fan, and continuously taking away heat emitted by high-temperature heat source equipment through exchange of air inside and outside the heat-insulating 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 on the top wall of the heat-insulating cooling cover, and air with relatively high temperature discharged by an exhaust fan is guided to be discharged outdoors through the air pipe;
s03, closing a second end C of the three-way electromagnetic valve, opening a first end C and a third end C of the three-way electromagnetic valve, starting a circulating water pump to enable circulating water in an internal pipeline of the heat dissipation and cooling system to circulate continuously, wherein the circulating flow route is as follows: in the circulating water flowing process, heat is absorbed and heated in the heat exchange tube, then cooled in the water-cooled cold water machine, and finally returned to the heat exchange tube to absorb and heat, thereby realizing continuous heat dissipation and temperature reduction of the high-temperature heat source equipment.
The invention further adopts the technical scheme that: in step S03, the circulation tank has an automatic water replenishment 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 replenish a certain amount of water from the external water source into the circulation tank from the water replenishment port.
The invention further adopts the technical scheme that: in the step S03, the circulating water absorbs heat and heats up in the heat exchange tube 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 the one hand, the part of the radiation metal plate, which is in contact with the heat exchange tube body, 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 air with higher temperature is continuously sucked into the heat exchange cavity of the heat insulation shell through the air inlet by the cross flow fan in starting, sucked air flows into the S-shaped air duct, performs convection heat exchange with the heat exchange tube with relatively lower temperature to transfer heat to the heat exchange tube, and finally air with relatively lower temperature is discharged 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 from the water outlet end of the heat exchange tube.
The invention further adopts the technical scheme that: in step S03, hot water may be outputted through the hot water diversion apparatus, 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, the flow control valve C is closed, and part of circulating water discharged from the water collector is shunted through the three-way electromagnetic valve and enters the heat storage water tank; when the water level in the heat storage water tank reaches the full water level, the second end C of the three-way electromagnetic valve is closed, and the flow control valve C is opened to discharge hot water;
b. 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 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 heat-insulating and cooling cover is used for covering the high-temperature heat source equipment, continuously and efficiently cooling the high-temperature heat source equipment, effectively reducing the temperature and heat of the peripheral area of the high-temperature heat source equipment, avoiding the heat generated by the high-temperature heat source equipment from diffusing to the periphery, further avoiding forming a local high-temperature area in a factory building, and meeting the thermal comfort requirement of workers working in the factory building.
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 and social values.
3. The heat-insulating cooling cover is formed by assembling heat-insulating cooling walls in a modularized design, and the heat-insulating cooling walls are formed by assembling wall units in a modularized design, so that the heat-insulating cooling cover is convenient to transport and assemble.
4. Two heat exchange pipes in the heat insulation and cooling wall are respectively connected at the water inlet end and the water outlet end through tee joints B, A, so that a parallel pipeline structure is formed. Compared with a pipeline structure in series connection, the pipeline structure in parallel connection reduces the medium flow pressure in the pipeline, and the flow control valve A is used for independently controlling the flow in any heat exchange tube in the heat insulation cooling wall, so that the control can be realized.
5. The wall body unit combines heat conduction, radiation heat exchange and convection heat exchange modes, and has higher heat exchange efficiency;
a. on the one hand, the radiation metal plate (preferably a 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 transfers the heat to the heat exchange tube in a heat radiation and heat conduction mode to heat the heat exchange tube, and the heat exchange tube transfers the heat to circulating water in the heat exchange tube in a heat radiation mode 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 brought out of the heat exchange cavity, and efficient heat exchange is realized.
b. On the other hand, when the cross-flow fan is started, 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 duct, performs convection heat exchange with the heat exchange tube with relatively low temperature, transfers heat to the heat exchange tube, and then discharges the cooled air from the air outlet, 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 drawings and examples.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a heat shield;
FIG. 3 is a perspective view of the insulated cooling wall at one view angle;
FIG. 4 is a perspective view of the insulated cooling wall at another view angle;
FIG. 5 is a diagram of the piping structure at the junction of two wall units within a heat-insulated cooling wall;
FIG. 6 is a perspective view of a wall unit;
fig. 7 is a schematic diagram of the positional relationship among the cross flow fan, the S-shaped air deflector and the heat exchange tube in the wall unit.
Legend description: a heat-insulating cooling cover 1; a device placement chamber 11; a heat-insulating cooling wall 12; a wall unit 121; an insulating housing 1211; a heat exchange chamber 12111; an infrared heat reflective coating 12112; a radiating metal plate 1212; heat exchange tubes 1213; a water inlet end 12131; a water outlet end 12132; flow control valve a12133; a cross flow fan 1214; an S-shaped deflector 1215; an air inlet 1216; an outlet 1217; an S-shaped air duct 1218; a shutter 1219; a back plate 122; three-way joint a123; first end a1231; a second end a1232; a third end a1233; tee joint B124; first end B1241; a second end B1242; third end B1243; an output pipe 125; an input tube 126; an air inlet chamber 127; an air inlet channel 1271; an air intake fan 1272; a heat insulating plate 13; an exhaust port 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 tank 24; a water inlet C241; a water outlet C242; a water replenishing port 243; a water-cooled 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; a flow control valve C32; and a PLC programmable singlechip 4.
Description of the embodiments
Example 1:
as shown in fig. 1-7, the cooling and heat dissipation system for the high-temperature heat source equipment comprises a heat insulation cooling cover 1, a water cooling circulation device and a hot water diversion device.
The heat-insulating and cooling cover 1 is in a hollow prismatic shape, and is internally provided with a device placement cavity 11 which is formed by constructing a side wall consisting of heat-insulating and cooling walls 12 and a top wall consisting of heat-insulating plates 13. An exhaust outlet 14 which communicates the inside and the outside of the heat-insulating and cooling cover 1 is arranged on the top wall, and an exhaust fan 15 is arranged on the exhaust outlet 14.
The heat-insulating 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 a heat insulating housing 1211, a radiant metal plate 1212, heat exchange tubes 1213, a cross flow fan 1214, and an S-shaped air deflector 1215.
The heat insulating housing 1211 has a hollow rectangular parallelepiped shape in which a heat exchange chamber 12111 is provided, and one side surface thereof is provided with an opening communicating to the heat exchange chamber 12111.
The radiation metal plate 1212 is installed at an opening of the heat insulating housing 1211 and is located in the equipment installation cavity 11 of the heat insulating and cooling jacket 1, which shields the opening of the heat insulating housing 1211 and forms an air inlet 1216 and an air outlet 1217 between the opposite sides of the heat insulating housing 1211, respectively, and the air inlet 1216 and the air outlet 1217 are respectively communicated to the heat exchanging cavity 12111 of the heat insulating housing 1211 and are respectively located at the upper end and the lower end of the heat exchanging cavity 12111.
The heat exchange tube 1213 repeatedly bends the region between the air inlet 1216 and the air outlet 1217 in the heat exchange chamber 12111 of the heat insulating housing 1211, and a part of the tube section thereof contacts the radiation metal plate 1212, and both ends thereof protrude from the heat exchange chamber 12111 of the heat insulating housing 1211, respectively, to form a water inlet end 12131 and a water outlet end 12132.
The cross flow fan 1214 is mounted in the heat exchange chamber 12111 of the insulated housing 1211 adjacent the air intake 1216.
The plurality of S-shaped air deflectors 1215 are arranged in parallel in the region between the air inlet 1216 and the air outlet 1217 in the heat exchange cavity 12111 of the heat insulation shell 1211, are alternately arranged with the heat exchange tubes 1213, and correspondingly, the S-shaped air deflectors 1215 are provided with pipe penetrating holes for the heat exchange tubes 1213 to penetrate, S-shaped air ducts 1218 are formed between the adjacent S-shaped air deflectors 1215, one end of each S-shaped air duct 1218 is adjacent to the air outlet end of the through-flow fan 1214, and the other end of each S-shaped air duct is adjacent to the air outlet 1217.
The two wall units 121 are arranged in parallel and are respectively installed on the back plate 122 through respective heat insulation shells 1211, water inlet ends 12131 of the two heat exchange tubes 1213 are opposite, and 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 head B1241, a second end head B1242 and a third end head B1243, and the first end head B1241 and the second end head B1242 are respectively communicated with 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 end 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 shell 1211 of the wall body unit 121 and is flush with the wall body unit 121 in the thickness and height directions, an air inlet channel 1271 which communicates the inside and the outside of the heat insulation cooling cover 1 is arranged at the lower end of the air inlet chamber 127, and an air inlet fan 1272 is installed in the air inlet channel 1271.
The water-cooling circulation device comprises a water separator 21, a water collector 22, a three-way electromagnetic valve 23, a circulating water tank 24, a water-cooling type water chiller 25, a circulating water pump 26, a water supply 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 pipelines.
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 ends of the output pipes 125 through pipelines.
The three-way electromagnetic 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 supplementing port 243 and a water level detection element A (not shown in the figure), and the water inlet C241 is communicated with a 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 water collector 22 and the first end C231 of the three-way electromagnetic valve 23.
One end of the water feed pump 27 is communicated with the water supplementing port 243 of the circulating water tank 24 through a pipeline, and the other end is communicated with an external water source through a pipeline.
The 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 a hot water storage tank 31 and a flow control valve C32. The hot water 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 the second end C232 of the three-way electromagnetic 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 tank 31 through a pipeline, and the other end is connected with a pipeline for outputting hot water.
Preferably, the heat insulation shell 1211 is made of polyurethane heat insulation board (PU board), which has excellent effects of moisture resistance, water resistance, heat insulation and heat preservation, and can effectively block external heat from entering the heat exchange cavity 12111 through the heat insulation shell 1211, so that the heat exchange tube 1213 in the heat exchange cavity 12111 can only receive heat from one side of the radiation metal board 1212, thereby ensuring the heat exchange efficiency of the wall unit 121 for high-temperature heat source equipment.
Preferably, the heat exchange cavity 12111 of the heat insulating housing 1211 has an infrared heat reflection coating 12112 on the cavity wall, 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 the heat insulating housing 1211 to heat the heat insulating housing 1211, thereby avoiding heat transfer from the heat insulating housing 1211 to the outside due to temperature difference.
Preferably, the radiating metal plate 1212 is a copper plate having excellent heat conduction, radiation heat exchange, convection heat exchange properties.
Preferably, the water inlet end 12131 of the heat exchange tube 1213 is provided with a flow control valve a12133 to regulate the flow and pressure in the heat exchange tube 1213, thereby achieving the effect of regulating the heat exchange amount and heat exchange efficiency of the wall unit 121.
Preferably, the heat exchange tubes 1213 are arranged in a staggered arrangement such that fluid flows in curved channels that alternately contract and expand between the tubes when staggered, which is more intense than the flow disturbance in the passage of the hallway between the tubes when staggered, i.e., the heat exchange effect is stronger when staggered than when staggered.
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, a door (not shown in the figure) for an operator to enter and exit is provided on at least one side wall of the heat-insulating and cooling cover 1.
Preferably, the operation of each component in the heat dissipation and cooling system is unified and coordinated through the PLC programmable single chip microcomputer 4.
Brief description of the working procedure of the invention:
the cooling and radiating method for the high-temperature heat source equipment is applied to the cooling and radiating system for the high-temperature heat source equipment, and comprises the following steps of:
s01, the heat-insulating and cooling cover 1 is built outside the high-temperature heat source equipment, so that the high-temperature heat source equipment is positioned in the equipment placement cavity 11 of the heat-insulating and cooling cover 1.
S02, starting an air inlet fan 1272 and an exhaust fan 15, enabling air with relatively low temperature outside the heat-insulating and cooling cover 1 to enter an equipment placement cavity 11 of the heat-insulating and cooling cover 1 through the air inlet fan 1272, discharging air with relatively high temperature inside the equipment placement cavity 11 outside the heat-insulating and cooling cover 1 through the exhaust fan 15, and continuously taking away heat emitted by high-temperature heat source equipment through exchange of air inside and outside the heat-insulating and cooling cover 1, so that continuous heat dissipation and cooling 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-insulating and cooling cover 1, and air with relatively high temperature discharged by the air discharge fan 15 is guided to the outside (outside of the factory building) for discharge through the air duct.
S03, closing a second end C232 of the three-way electromagnetic valve 23, opening a first end C231 and a third end C233 of the three-way electromagnetic valve 23, starting the circulating water pump 26 to enable circulating water in an internal pipeline of the cooling and heat dissipation system to circulate continuously, wherein the circulating flow route is as follows: in the process of circulating water circulation flow, heat is absorbed and warmed in the heat exchange tube 1213, then cooled and cooled in the water-cooled type water chiller 25, and finally returned to the heat exchange tube 1213 to absorb and warm, thereby realizing 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 certain amount of water from the external water source into the circulation tank 24 through the water supply port 243.
In this step, the circulating water absorbs heat and heats up in the heat exchange tube 1213 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 the one hand, the part of the radiation metal plate 1212 in contact with the tube body of the heat exchange tube 1213 transfers heat to the heat exchange tube 1213 in a heat conduction manner, and on the other hand, the part of the radiation metal plate 1212 not in contact with the heat exchange tube 1213 transfers heat to the heat exchange tube 1213 in a radiation heat exchange manner;
meanwhile, the through-flow fan 1214 in starting continuously sucks air with higher temperature into the heat exchange cavity 12111 of the heat insulation shell 1211 through the air inlet 1216, the sucked air flows into the S-shaped air duct 1218, performs convection heat exchange with the heat exchange tube 1213 with relatively lower temperature to transfer heat to the heat exchange tube 1213, and finally discharges air with relatively lower temperature from the air outlet 1217;
meanwhile, the 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 towards the water outlet end 12132 of the heat exchange tube 1213, continuously increases in temperature, and finally flows out from the water outlet end 12132 of the heat exchange tube 1213.
In the step, hot water can be output through the hot water diversion device, and the method comprises the following steps:
a. when the water level detection element B on the heat storage water tank 31 detects that the water level in the heat storage water tank 31 is lower than the set water level, the second end C232 of the three-way electromagnetic valve 23 is opened, the flow control valve C32 is closed, and part of circulating water discharged from the water collector 22 is shunted into the heat storage water 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 detection 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 (8)
1. Cooling and heat dissipation system for 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-insulating cooling cover is in a hollow prismatic shape, and is internally provided with an equipment placement cavity which is formed by constructing a side wall consisting of heat-insulating cooling walls and a top wall consisting of heat-insulating boards; an exhaust outlet which communicates the inside and the outside of the heat-insulating cooling cover is arranged on the top wall, and an exhaust fan is arranged on the exhaust outlet;
the heat-insulating and cooling wall comprises a wall body 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 placement cavity of the heat insulation cooling cover, the opening of the heat insulation shell is shielded, an air inlet and an air outlet are respectively formed between the two opposite side edges and the heat insulation shell, the air inlet and the air outlet are respectively communicated to the heat exchange cavity of the heat insulation shell, and the air inlet and the air outlet are respectively provided with a shutter with adjustable blade angles; the heat exchange tube is repeatedly bent and arranged in the heat exchange cavity of the heat insulation shell, part of tube sections of the heat exchange tube are contacted with the radiation metal plate, and two ends of the heat exchange tube extend out of the heat exchange cavity of the heat insulation shell respectively 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 water outlet ends of the two heat exchange tubes;
the three-way joint B is provided with a first end head B, a second end head B and a third end head B, and the first end head B and the second end head B are respectively communicated with water inlet end heads 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 is a free end;
the air inlet chamber is arranged at the side edge of the heat insulation shell of the wall body unit and is flush with the wall body unit in the thickness and height directions, the lower end of the air inlet chamber is provided with an air inlet channel which communicates 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 circulation 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 supply 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 a pipeline; the three-way electromagnetic valve is provided with a first end head C, a second end head C and a third end head C, and the first end head 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 supplementing port and a water level detection element A, and the water inlet C is communicated with a third end head 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 the water outlet B of the water collector and the first end head C of the three-way electromagnetic valve; one end of the water supply pump is communicated with a water supplementing port of the circulating water tank through a pipeline, and the other end of the water supply 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 diversion device comprises a heat storage water 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 head 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 of claim 1, wherein: an infrared heat reflection coating is arranged on the wall of the heat exchange cavity of the heat insulation shell.
3. The cooling and heat dissipating system for high temperature heat source equipment of claim 2, wherein: the water inlet end of the heat exchange tube is provided with a flow control valve B.
4. The cooling and heat dissipating system for a high temperature heat source device of claim 3, 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 S-shaped air deflectors are arranged in parallel in the area between the air inlet and the air outlet in the heat exchange cavity of the heat insulation shell, are alternately arranged with the heat exchange tubes, and correspondingly are provided with through holes for the heat exchange tubes to pass through, an S-shaped air duct is formed between the adjacent S-shaped air deflectors, one end of the S-shaped air duct is adjacent to the air outlet end of the through-flow fan, and the other end of the S-shaped air duct is adjacent to the air outlet.
5. The cooling and radiating method for the high-temperature heat source equipment is applied to the cooling and radiating system for the high-temperature heat source equipment, and comprises the following steps of:
s01, building a heat-insulating cooling cover outside high-temperature heat source equipment, so that the high-temperature heat source equipment is positioned in an equipment placement cavity of the heat-insulating cooling cover;
s02, starting an air inlet fan and an exhaust fan, enabling air with relatively low temperature outside the heat-insulating and cooling cover to enter an equipment installation cavity of the heat-insulating and cooling cover through the air inlet fan, discharging air with relatively high temperature inside the equipment installation cavity outside the heat-insulating and cooling cover through the exhaust fan, and continuously taking away heat emitted by high-temperature heat source equipment through exchange of air inside and outside the heat-insulating 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 on the top wall of the heat-insulating cooling cover, and air with relatively high temperature discharged by an exhaust fan is guided to be discharged outdoors through the air pipe;
s03, closing a second end C of the three-way electromagnetic valve, opening a first end C and a third end C of the three-way electromagnetic valve, starting a circulating water pump to enable circulating water in an internal pipeline of the heat dissipation and cooling system to circulate continuously, wherein the circulating flow route is as follows: in the circulating water flowing process, heat is absorbed and heated in the heat exchange tube, then cooled in the water-cooled cold water machine, and finally returned to the heat exchange tube to absorb and heat, thereby realizing continuous heat dissipation and temperature reduction of the high-temperature heat source equipment.
6. The method for cooling and radiating high-temperature heat source equipment according to claim 5, which is characterized in that: in step S03, the circulation tank has an automatic water replenishment 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 replenish a certain amount of water from the external water source into the circulation tank from the water replenishment port.
7. The method for cooling and radiating high-temperature heat source equipment according to claim 6, wherein the method comprises the following steps: in the step S03, the circulating water absorbs heat and heats up in the heat exchange tube 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 the one hand, the part of the radiation metal plate, which is in contact with the heat exchange tube body, 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 air with higher temperature is continuously sucked into the heat exchange cavity of the heat insulation shell through the air inlet by the cross flow fan in starting, sucked air flows into the S-shaped air duct, performs convection heat exchange with the heat exchange tube with relatively lower temperature to transfer heat to the heat exchange tube, and finally air with relatively lower temperature is discharged 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 from the water outlet end of the heat exchange tube.
8. The method for cooling and radiating high-temperature heat source equipment according to claim 7, wherein the method comprises the following steps: in step S03, hot water may be outputted through the hot water diversion apparatus, 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, the flow control valve C is closed, and part of circulating water discharged from the water collector is shunted through the three-way electromagnetic valve and enters the heat storage water tank; when the water level in the heat storage water tank reaches the full water level, the second end C of the three-way electromagnetic valve is closed, and the flow control valve C is opened to discharge hot water;
b. 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 higher than the set water level, the flow control valve C is directly opened to discharge hot water.
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