CN110671953B - Heat dissipation cooling system and heat dissipation cooling method for high-temperature heat source equipment - Google Patents

Abstract

The heat dissipation and cooling system for high-temperature heat source equipment includes a heat-insulating cooling cover, a water-cooling circulation device and a waste heat utilization device; the heat-insulating cooling cover is composed of side walls composed of heat-insulating cooling walls and a top wall composed of heat-insulating panels; heat insulation Cooling walls include wall units. For the heat dissipation and cooling method of high-temperature heat source equipment, the steps are as follows: Build a heat-insulating cooling cover outside the high-temperature heat source equipment; start the air intake fan and exhaust fan to continuously dissipate and cool the high-temperature heat source equipment; circulate the circulating water to cool down the high-temperature heat source equipment. The device continues to dissipate heat and cool down. The invention covers the high-temperature heat source equipment through a heat-insulating cooling cover, and continuously and efficiently dissipates and cools the high-temperature heat source equipment, effectively reduces the temperature in the surrounding area of the high-temperature heat source equipment, and greatly reduces the heat generated by the high-temperature heat source equipment to the surrounding area. Diffusion, thereby avoiding the formation of local high-temperature areas inside the factory, meeting the thermal comfort needs of workers.

Description

Heat dissipation and cooling system and heat dissipation and cooling 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 heat dissipation and cooling system and a heat dissipation and cooling method for high-temperature heat source equipment.

Background technique

In recent years, as industrial production has developed toward refinement, integration, and intelligence, the production lines in industrial plants have become increasingly compact, and the resulting problem has been a significant increase in heat production in the plants. At the same time, some factories have high-temperature heat source equipment that generates large amounts of heat, which brings considerable technical problems to the cooling and heat dissipation inside the factory.

How to quickly, effectively and timely take away the heat generated by high-temperature heat source equipment inside the factory, ensure the uniform distribution of the temperature field in each area inside the factory, and improve the thermal comfort of workers has become an urgent problem to be solved in the cooling and heat dissipation design of the factory.

Industrial factories are often tall spaces, and air conditioning is usually used to improve the thermal environment in the factory. Although the cooling load can be increased to meet the cooling needs of high-temperature heat source equipment in the factory, air conditioning consumes high energy, does not meet energy-saving requirements, and cannot guarantee the factory. The uniform distribution of the temperature field in each internal area cannot meet the thermal comfort needs of workers.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a heat dissipation and cooling system and a heat dissipation and cooling method for high-temperature heat source equipment. The problem is that it cannot ensure the uniform distribution of the temperature field in each area within the factory building and cannot meet the thermal comfort needs of workers.

The technical solution of the present invention is: a heat dissipation and cooling system for high-temperature heat source equipment, including a heat insulation cooling cover, a water cooling circulation device and a waste heat utilization device;

The heat-insulating cooling cover is in the shape of a hollow prism, with an equipment placement cavity inside. It is made up of side walls composed of heat-insulating cooling walls and a top wall composed of heat-insulating panels; Connected exhaust vents with exhaust fans installed on them;

Thermal insulation and cooling wall includes wall unit, back panel, tee joint A, tee joint B, input pipe, output pipe and air inlet chamber;

The wall unit includes an insulating shell, a radiant metal plate and a heat exchange tube; the insulating shell is in the shape of a hollow rectangular parallelepiped, with a heat exchange cavity inside, and an opening connected to the heat exchange cavity on one side of the shell; the radiant metal plate Installed at the opening of the heat-insulating shell and located in the equipment placement cavity of the heat-insulating cooling cover, it shields the exposed part of the heat-insulating shell and forms a gap between the two opposite sides and the heat-insulating shell. The air inlet and air outlet are respectively connected to the heat exchange cavity of the heat insulation shell; the heat exchange tube is repeatedly bent and installed in the heat exchange cavity of the heat insulation shell, and some of its pipe sections are in contact with the radiant metal plate. Both ends protrude from the heat exchange cavity of the thermal insulation shell respectively, forming a water inlet end and a water outlet end; the two wall units are arranged side by side and installed on the back plate through their respective thermal insulation shells. And 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 tee joint A is provided with a first end A, a second end A and a third end A. The first end A and the second end A are respectively connected 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. The first end B and the second end B are respectively connected with the water inlet ends of the two heat exchange tubes;

One end of the input pipe is connected to the third end B of the tee joint B, and the other end is the free end;

One end of the output pipe is connected to the third end A of the tee joint A, and the other end is the free end;

The air inlet chamber is installed on the side of the heat insulation shell of the wall unit and is flush with the wall unit in the direction of thickness and height. The lower end is provided with an air inlet channel that connects the inside and outside of the heat insulation cooling cover. The air inlet channel An air intake fan is installed inside;

The water-cooling circulation device includes a water distributor, a water collector, a shell-and-tube heat exchanger, a circulating water tank, a water-cooled chiller, a circulating water pump A, a feed water pump A and a flow control valve B; the water distributor is equipped with multiple water outlets A and a water inlet A, the water outlet A is connected to the free end of the input pipe through a pipeline; the water collector is provided with multiple water inlets B and a water outlet B, and the water inlet B is connected to the free end of the output pipe through a pipeline; The shell-and-tube heat exchanger is provided with a shell-side inlet, a shell-side outlet, a tube-side inlet and a tube-side outlet. The tube-side inlet is connected to the water outlet B of the water collector through a pipe; the circulating water tank is provided with a water inlet C and an outlet. Water inlet C, water replenishment port and water level detection component. Water inlet C is connected to the tube side outlet of the shell-and-tube heat exchanger through a pipeline. The water-cooled chiller is equipped with a water inlet D and a water outlet D. The water inlet D is connected to the circulating water tank through a pipeline. The water outlet C is connected, and the water outlet D is connected to the water inlet A of the water distributor through a pipeline; the circulating water pump A is installed on the pipeline between the water outlet B of the water collector and the tube side inlet of the shell and tube heat exchanger; One end of the water supply pump A is connected to the water replenishment port of the circulating water tank through a pipeline, and the other end is connected to the external water source through a pipeline; the flow control valve B is installed on the pipeline between the water outlet A of the water distributor and the free end of the input pipe;

The waste heat utilization device includes a hot water storage tank, a three-way solenoid valve, a flow control valve C, a water supply pump B and a circulating water pump B; the hot water storage tank is provided with a first water outlet, a water inlet, a second water outlet and a water temperature detection element. , the water inlet is connected to the shell-side outlet of the shell-and-tube heat exchanger through a pipe; the three-way solenoid valve is provided with a first end C, a second end C and a third end C, and the second end C passes through the pipe It is connected to the shell-side inlet of the shell-and-tube heat exchanger; one end of the flow control valve C is connected to the second outlet of the hot water storage tank through a pipe, and the other end is connected to the pipe for outputting hot water; one end of the water supply pump B is connected to the pipe through a pipe. The first end C of the three-way solenoid valve is connected, and the other end is connected to the external water source through a pipe; one end of the circulating water pump B is connected to the third end C of the three-way solenoid valve through a pipe, and the other end is connected to the hot water storage tank through a pipe. The first water outlet is connected.

A further technical solution of the present invention is that the air inlet and the air outlet are located at the upper end and the lower end of the heat exchange cavity respectively, and the heat exchange tube is installed in the area between the air inlet and the air outlet in the heat exchange cavity.

A further technical solution of the present invention is that shutters with adjustable blade angles are respectively installed at the air inlet and the air outlet.

A further technical solution of the present invention is: the cavity wall of the heat exchange cavity of the heat insulation shell is provided with an infrared heat reflective coating.

A further technical solution of the present invention is: a flow control valve B is installed on the water inlet end of the heat exchange tube.

A further technical solution of the present invention is: the wall unit also includes a cross-flow fan and an S-shaped air guide plate; the cross-flow fan is installed in the heat exchange cavity of the thermal insulation shell and adjacent to the air inlet; multiple S-shaped air guide plates The air plates are arranged in parallel and installed in the area between the air inlet and the air outlet in the heat exchange cavity of the heat insulation shell, and are arranged staggered with the heat exchange pipes. Correspondingly, the S-shaped air guide plate is provided with holes for the heat exchange pipes to pass through. Through the through holes, an S-shaped air duct is formed between adjacent S-shaped air guide plates. One end of the S-shaped air duct is adjacent to the air outlet end of the cross-flow fan, and the other end is adjacent to the air outlet.

The technical solution of the present invention is: a heat dissipation and cooling method for high-temperature heat source equipment, which is applied to the above-mentioned heat dissipation and cooling system for high-temperature heat source equipment. The steps are as follows:

S01, build the heat insulation and cooling cover outside the high-temperature heat source equipment, so that the high-temperature heat source equipment is located in the equipment placement cavity of the heat insulation and cooling cover;

S02, start the air inlet fan and the exhaust fan, so that the relatively low temperature air outside the heat insulating cooling cover enters the equipment placement cavity of the heat insulating cooling cover through the air inlet fan, and the relatively high temperature air in the equipment placement cavity passes through the exhaust fan. The fan is discharged to the outside of the heat insulation cooling cover, and through the exchange of air inside and outside the heat insulation cooling cover, it continuously takes away the heat emitted by the high-temperature heat source equipment, thereby achieving continuous heat dissipation and cooling of the high-temperature heat source equipment;

In this step, an air duct is installed at the air outlet on the top wall of the heat insulation cooling cover, and the relatively high-temperature air discharged by the exhaust fan is guided through the air duct to the outdoors for discharge;

S03, start the circulating water pump A to continuously circulate the circulating water in the internal pipelines of the cooling system. The circulating flow route is: heat exchange tube - water collector - shell and tube heat exchanger - circulating water tank - water-cooled chiller - Water distributor - heat exchange tube. During the circulating water circulation process, it first absorbs heat and heats up in the heat exchange tube, then exchanges heat and cools down with cold water in the shell and tube heat exchanger, and then cools down in the water-cooled chiller. Finally, it returns to the heat exchange tube to absorb heat and raise the temperature, thereby achieving continuous heat dissipation and cooling of high-temperature heat source equipment.

A further technical solution of the present invention is: in step S03, the circulating water tank has an automatic water replenishing mechanism. When the water level in the circulating water tank is lower than the water level detection element, the water supply pump A is started to replenish a certain amount of water from the external water source from the water replenishing port. into the circulating water tank.

A further technical solution of the present invention is: in step S03, the process of circulating water absorbing heat and raising temperature in the heat exchange tube is as follows:

The radiant metal plate absorbs the heat emitted by the high-temperature heat source equipment and transfers heat to the heat exchange tube; on the one hand, the part where the radiant metal plate contacts the heat exchange tube body transfers heat to the heat exchange tube through heat conduction; on the other hand, the radiation The part of the metal plate that is not in contact with the heat exchange tube transfers heat to the heat exchange tube through radiation heat exchange;

At the same time, the starting cross-flow fan continues to suck higher-temperature air into the heat exchange cavity of the insulated shell through the air inlet. The sucked air flows into the S-shaped air duct and interacts with the relatively low-temperature heat exchange tubes. Convection heat transfer transfers heat to the heat exchange tube, and finally discharges relatively low-temperature air from the air outlet;

At the same time, the circulating water enters the heat exchange tube through the water inlet end of the heat exchange tube. In the process of flowing toward the water outlet end of the heat exchange tube, it continuously absorbs the heat of the heat exchange tube, and the temperature continues to increase. Finally, it flows from the heat exchange tube to the heat exchange tube. The water outlet end of the heat pipe flows out.

A further technical solution of the present invention is: in step S03, hot water of a certain temperature can be prepared through a waste heat circulation device, and the operation is as follows:

a. When the water level in the hot water storage tank is lower than the set water level, start the water supply pump B, connect the first end C and the second end C of the three-way solenoid valve, and connect the third end of the three-way solenoid valve. C is closed, and the flow control valve C is closed, so that the external low-temperature water source enters the hot water storage tank after being exchanged by the shell-and-tube heat exchanger;

b. When the water level in the hot water storage tank reaches the set water level, turn off the water supply pump B, start the circulating water pump B, close the first end C of the three-way solenoid valve, and turn the second end C of the three-way solenoid valve It is connected to the third end C to circulate the circulating water in the internal pipeline of the waste heat utilization device. The circulating flow route is hot water storage tank - circulating water pump B - three-way solenoid valve - shell and tube heat exchanger - hot water storage. box, during the circulation process of circulating water, it heats up after exchanging heat with the hot water discharged from the water collector in the shell-and-tube heat exchanger. As the number and time of circulating water in the hot water storage tank increase, the stored hot water The water in the box also continues to heat up;

c. When the water temperature detection element in the hot water storage tank detects that the temperature reaches the set outlet temperature or the water temperature no longer increases within 5 minutes, the flow control valve C opens and the hot water is discharged.

Compared with the prior art, the present invention has the following advantages:

1. The present invention covers the high-temperature heat source equipment through an insulating cooling cover, and continuously and efficiently dissipates and cools the high-temperature heat source equipment, effectively reducing the temperature in the surrounding area of the high-temperature heat source equipment, and greatly reducing the heat generated by the high-temperature heat source equipment. Diffusion to the surroundings, thereby avoiding the formation of local high temperature areas inside the factory, meeting the thermal comfort needs of workers working in the factory.

2. When the present invention is applied in industrial factories, it can reduce the initial investment and operating energy consumption of air conditioning, improve the thermal environment in the factory, and has significant economic and social value.

3. The heat-insulating cooling cover in the present invention is assembled from modularly designed heat-insulating and cooling walls. The heat-insulating and cooling walls are assembled from modularly designed wall units, which facilitates transportation and assembly.

4. The two heat exchange tubes in the thermal insulation cooling wall of the present invention are connected at the inlet and outlet ends respectively through tee joints B and A, thereby forming a parallel pipeline structure. Compared with the series pipeline structure, the parallel pipeline structure reduces the medium flow pressure in the pipeline, and also makes it possible to individually control the flow rate in any heat exchange tube in the insulation cooling wall through the flow control valve A. Control.

5. The wall unit in the present invention combines three heat exchange methods: thermal conduction, radiation heat exchange and convection heat exchange, and has high heat exchange efficiency;

a. On the one hand, the radiant metal plate (preferably the copper plate) has excellent thermal radiation performance and thermal conductivity. It is arranged towards the high-temperature heat source equipment to absorb the heat emitted by the high-temperature heat source equipment, and transfers it to the heat exchange tube through thermal radiation and heat conduction. The heat is transferred to heat the heat exchange tube, and the heat exchange tube transfers heat to the circulating water in the heat exchange tube through thermal radiation, causing the circulating water to heat up. The circulating water enters the heat exchange tube from the water inlet end of the heat exchange tube, and then flows out from the water outlet end of the heat exchange tube, thereby taking the heat out of the heat exchange cavity, thereby achieving efficient heat exchange.

b. On the other hand, when the cross-flow fan is started, the high-temperature air around the high-temperature heat source equipment is sucked into the heat exchange chamber through the air inlet. The high-temperature air flows to the air outlet through the S-shaped air duct and interacts with the relatively low-temperature heat exchange tube. Convection heat exchange is performed to transfer heat to the heat exchange tubes, and then the cooled air is discharged from the air outlet, further enhancing the heat exchange effect and improving workers' thermal comfort experience.

The present invention will be further described below in conjunction with the figures and examples.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a schematic structural diagram of the heat insulation and cooling cover;

Figure 3 is a three-dimensional view of the thermal insulation and cooling wall from one perspective;

Figure 4 is a three-dimensional view of the thermal insulation and cooling wall from another perspective;

Figure 5 is a piping structure diagram of the connection between two wall units in the thermal insulation and cooling wall;

Figure 6 is a perspective view of the wall unit;

Figure 7 is a schematic diagram of the positional relationship between the cross-flow fan, S-shaped air guide plate and heat exchange tube in the wall unit.

Legend: heat insulation cooling cover 1; equipment placement cavity 11; heat insulation cooling wall 12; wall unit 121; heat insulation shell 1211; heat exchange cavity 12111; infrared heat reflective coating 12112; radiant metal plate 1212; heat exchange tube 1213; water inlet end 12131; water outlet end 12132; flow control valve A12133; cross-flow fan 1214; S-shaped air deflector 1215; air inlet 1216; air outlet 1217; S-shaped air duct 1218; louvers 1219; back plate 122 ;Tee joint A123; first end A1231; second end A1232; third end A1233; tee joint B124; first end B1241; second end B1242; third end B1243; output pipe 125 ; Input pipe 126; air inlet chamber 127; air inlet channel 1271; air inlet fan 1272; heat shield 13; air exhaust port 14; exhaust fan 15; water distributor 21; water outlet A211; water inlet A212; water collection 22; water inlet B221; water outlet B222; shell and tube heat exchanger 23; shell side inlet 231; shell side outlet 232; tube side inlet 233; tube side outlet 234; circulating water tank 24; water inlet C241; water outlet C242 ; Water replenishment port 243; Water-cooled chiller 25; Water inlet D251; Water outlet D252; Circulating water pump A26; Feed water pump A27; Flow control valve B28; Hot water storage tank 31; First water outlet 311; Water inlet 312; Second Water outlet 313; three-way solenoid valve 32; first end C321; second end C322; third end C323; flow control valve C33; water supply pump B34; circulating water pump B35; PLC programmable microcontroller 4.

Detailed ways

Example 1:

As shown in Figure 1-7, the heat dissipation and cooling system for high-temperature heat source equipment includes a heat insulation cooling cover 1, a water cooling circulation device and a waste heat utilization device.

The heat-insulating cooling cover 1 is in the shape of a hollow prism, and is provided with an equipment placement cavity 11 inside. The heat-insulating cooling cover 1 is composed of a side wall composed of a heat-insulating cooling wall 12 and a top wall composed of a heat-insulating plate 13 . The top wall is provided with an air exhaust port 14 that connects the inside and outside of the heat insulation cooling cover 1, and an exhaust fan 15 is installed on the air exhaust port 14.

The heat insulation and cooling wall 12 includes a wall unit 121, a back plate 122, a tee joint A123, a tee joint B124, an input pipe 126, an output pipe 125 and an air inlet chamber 127.

The wall unit 121 includes a heat insulation shell 1211, a radiant metal plate 1212, a heat exchange tube 1213, a cross-flow fan 1214 and an S-shaped air guide plate 1215.

The heat insulation shell 1211 is in the shape of a hollow rectangular parallelepiped, with a heat exchange cavity 12111 inside, and an opening connected to the heat exchange cavity 12111 on one side surface thereof.

The radiant metal plate 1212 is installed at the opening of the heat insulation shell 1211 and is located in the equipment placement cavity 11 of the heat insulation cooling cover 1. It partially shields the opening of the heat insulation shell 1211 and is located at the two opposite sides. An air inlet 1216 and an air outlet 1217 are respectively formed between the heat insulating shell 1211 and the heat insulating shell 1211. The air inlet 1216 and the air outlet 1217 are respectively connected to the heat exchange cavity 12111 of the heat insulating shell 1211, and are respectively located at the upper end and the lower end of the heat exchange cavity 12111.

The heat exchange tube 1213 is repeatedly bent and arranged in the area between the air inlet 1216 and the air outlet 1217 in the heat exchange cavity 12111 of the heat insulation shell 1211. Some of its pipe sections are in contact with the radiation metal plate 1212, and its two ends are separated from the heat insulation shell 1211. The heat exchange cavity 12111 of the shell 1211 extends out to form a water inlet end 12131 and a water outlet end 12132.

The cross-flow fan 1214 is installed in the heat exchange cavity 12111 of the heat insulation shell 1211 and is adjacent to the air inlet 1216.

Multiple S-shaped air guide plates 1215 are arranged in parallel and installed in the area between the air inlet 1216 and the air outlet 1217 in the heat exchange cavity 12111 of the heat insulation shell 1211, and are arranged staggered with the heat exchange tubes 1213. Correspondingly, the S-shaped The air guide plate 1215 is provided with a through hole for the heat exchange pipe 1213 to pass through. An S-shaped air duct 1218 is formed between the adjacent S-shaped air guide plates 1215. One end of the S-shaped air duct 1218 is connected to the outlet of the cross-flow fan 1214. The air end is adjacent to the air outlet 1217 and the other end is adjacent to the air outlet 1217 .

The two wall units 121 are arranged side by side and installed on the back plate 122 through their respective heat insulation shells 1211. The water inlet ends 12131 of the two heat exchange tubes 1213 are opposite, and the water outlet ends of the two heat exchange tubes 1213 are opposite. 12132 relative.

The tee joint A123 is provided with a first end A1231, a second end A1232 and a third end A1233. The first end A1231 and the second end A1232 are respectively connected with the water outlet ends 12132 of the two heat exchange tubes 1213. .

The tee joint B124 is provided with a first end B1241, a second end B1242 and a third end B1243. The first end B1241 and the second end B1242 are respectively connected with the water inlet ends 12131 of the two heat exchange tubes 1213. Connected.

One end of the output pipe 125 is connected to the third end A1233 of the tee 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 tee 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 unit 121 and is flush with the wall unit 121 in the thickness and height directions. An air inlet is provided at its lower end to connect the inside and outside of the heat insulation cooling cover 1 Channel 1271, an air intake fan 1272 is installed in the air inlet channel 1271.

The water-cooling circulation device includes a water distributor 21, a water collector 22, a shell-and-tube heat exchanger 23, a circulating water tank 24, a water-cooled chiller 25, a circulating water pump A26, a water supply pump A27 and a flow control valve B28.

The water distributor 21 is provided with a plurality of water outlets A211 and a water inlet A212. The water outlet A211 is connected to the free end of the input pipe 126 through a pipeline.

The water collector 22 is provided with multiple water inlets B221 and one water outlet B222. The water inlet B221 is connected with the free end of the output pipe 125 through a pipeline.

The shell-and-tube heat exchanger 23 is provided with a shell-side inlet 231, a shell-side outlet 232, a tube-side inlet 233, and a tube-side outlet 234. The tube-side inlet 231 is connected to the water outlet B222 of the water collector 22 through a pipe.

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 detection element (not shown in the figure). The water inlet C241 is connected to the tube outlet 234 of the shell and tube heat exchanger 23 through a pipeline.

The water-cooled chiller 25 is provided with a water inlet D251 and a water outlet D252. The water inlet D251 is connected to the water outlet C242 of the circulating water tank 24 through a pipe, and the water outlet D252 is connected to the water inlet A212 of the water distributor 21 through a pipe.

The circulating water pump A26 is installed on the pipeline between the water outlet B222 of the water collector 22 and the tube side inlet 233 of the shell and tube heat exchanger 23 .

One end of the water supply pump A27 is connected to the water supply port 243 of the circulating water tank 24 through a pipe, and the other end is connected to an external water source through a pipe.

The flow control valve B28 is installed on the pipeline between the water outlet A211 of the water distributor 21 and the free end of the input pipe 126.

The waste heat utilization device includes a hot water storage tank 31, a three-way solenoid valve 32, a flow control valve C33, a water supply pump B34 and a circulating water pump B35.

The hot water storage tank 31 is provided with a first water outlet 311, a water inlet 312, a second water outlet 313 and a water temperature detection element (not shown in the figure). The water inlet 312 passes through a pipe and the shell of the shell-and-tube heat exchanger 23 Connected to exit 232.

The three-way solenoid valve 32 is provided with a first end C321, a second end C322 and a third end C323. The second end C322 is connected to the shell side inlet 231 of the shell and tube heat exchanger 23 through a pipeline.

One end of the flow control valve C33 is connected to the second water outlet 313 of the hot water storage tank 31 through a pipe, and the other end is connected to a pipe for outputting hot water.

One end of the water supply pump B34 is connected to the first end C321 of the three-way solenoid valve 33 through a pipe, and the other end is connected to an external water source through a pipe.

One end of the circulating water pump B35 is connected to the third end C323 of the three-way solenoid valve 32 through a pipe, and the other end is connected to the first water outlet 311 of the hot water storage tank 31 through a pipe.

Preferably, the material of the heat-insulating shell 1211 is polyurethane insulation board (PU board), which has excellent moisture-proof, waterproof, heat-insulating and heat-preserving effects, and can effectively block external heat from entering the heat exchange cavity 12111 through the heat-insulating 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 plate 1212, thereby ensuring the heat exchange efficiency of the wall unit 121 for high-temperature heat source equipment.

Preferably, an infrared heat reflective coating 12112 is provided on the wall of the heat exchange cavity 12111 of the heat insulating shell 1211. The infrared heat reflective coating 12112 can reflect heat back into the heat exchange cavity 12111, preventing the heat in the heat exchange cavity 12111 from being directly Contact with the heat-insulating shell 1211 heats the heat-insulating shell 1211, thereby preventing the heat-insulating shell 1211 from transferring heat to the outside due to temperature differences.

Preferably, the radiation metal plate 1212 is a copper plate, which has excellent thermal conductivity, radiation heat transfer, and convection heat transfer properties.

Preferably, a flow control valve A12133 is installed on the water inlet end 12131 of the heat exchange pipe 1213 to regulate the flow and pressure in the heat exchange pipe 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 fork row. When the heat exchange tubes are arranged in a fork row, the fluid flows in a curved channel in which the tubes alternately shrink and expand. The flow disturbance in the corridor between the tubes is more severe than when the tubes are arranged in a straight row, that is, when the fork row is used. The heat exchange effect is stronger than that when using parallel rows.

Preferably, shutters 1219 with adjustable blade angles are installed at the air inlet 1216 and the air outlet 1217 respectively, which can be used to adjust the 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 operators to enter and exit.

Preferably, the PLC programmable microcontroller 4 is used to coordinate the operation of each component in the heat dissipation and cooling system.

Briefly describe the working process of the invention:

The heat dissipation and cooling method for high-temperature heat source equipment is applied to the above-mentioned heat dissipation and cooling system for high-temperature heat source equipment. The steps are as follows:

S01, the heat insulation and cooling cover 1 is built outside the high-temperature heat source equipment, so that the high-temperature heat source equipment is located in the equipment placement cavity 11 of the heat insulation and cooling cover 1.

S02, start the air inlet fan 1272 and the exhaust fan 15, so that the relatively low-temperature air outside the heat insulation cooling cover 1 enters the equipment placement cavity 11 of the heat insulation cooling cover 1 through the air intake fan 1272, and the temperature in the equipment placement cavity 11 The relatively high air is discharged to the outside of the heat-insulating cooling cover 1 through the exhaust fan 15. Through the exchange of air inside and outside the heat-insulating cooling cover 1, the heat emitted by the high-temperature heat source equipment is continuously taken away, thereby achieving continuous protection of the high-temperature heat source equipment. heat dissipation and cooling;

In this step, an air duct is installed at the air exhaust port 14 on the top wall of the heat-insulating cooling cover 1, and the relatively high-temperature air discharged by the exhaust fan 15 is guided through the air duct to the outdoors (outside the factory building) for discharge.

S03, start the circulating water pump A26 to continuously circulate the circulating water in the internal pipelines of the heat dissipation and cooling system. The circulating flow route is: heat exchange tube 1213 - water collector 22 - shell and tube heat exchanger 23 - circulating water tank 24 - water cooling Type chiller 25 - water distributor 21 - heat exchange tube 1213. During the circulating water circulation process, it first absorbs heat to increase temperature in the heat exchange tube 1213, then exchanges heat and cools down in the shell and tube heat exchanger 23, and then cools it in the water. The heat is released and cooled in the type chiller 25, and finally returns to the heat exchange tube 1213 to absorb heat and raise the temperature, thereby achieving continuous heat dissipation and cooling of the high-temperature heat source equipment.

In this step, the circulating water tank 24 has an automatic water replenishing mechanism. When the water level in the circulating water tank 24 is lower than the water level detection element, the water supply pump A27 is started to replenish a certain amount of water from an external water source into the circulating water tank 24 from the water replenishing port 243.

In this step, the process of circulating water absorbing heat and heating up in the heat exchange tube 1213 is as follows:

The radiant metal plate 1212 absorbs the heat emitted by the high-temperature heat source equipment and transfers heat to the heat exchange tube 1213; on the one hand, the portion of the radiant metal plate 1212 that is in contact with the heat exchange tube 1213 body transfers heat to the heat exchange tube 1213 through heat conduction. On the other hand, the portion of the radiant metal plate 1212 that is not in contact with the heat exchange tube 1213 transfers heat to the heat exchange tube 1213 through radiation heat exchange;

At the same time, the starting cross-flow fan 1214 continues to suck 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, and the temperature is relatively high. The lower heat exchange tube 1213 performs convective heat exchange and transfers heat to the heat exchange tube 1213, and finally discharges relatively low-temperature air from the air outlet 1217;

At the same time, the circulating water enters the heat exchange tube 1213 through the water inlet end 12131 of the heat exchange tube 1213, and continuously absorbs the heat of the heat exchange tube 1213 while flowing toward the water outlet end 12132 of the heat exchange tube 1213. The temperature continues to increase, and finally flows out from the water outlet end 12132 of the heat exchange tube 1213.

In this step, hot water of a certain temperature can be prepared through the waste heat circulation device. The operation is as follows:

a. When the water level in the hot water storage tank 31 is lower than the set water level, start the water supply pump B34, connect the first end C231 and the second end C322 of the three-way solenoid valve 32, and connect the third end of the three-way solenoid valve 32. The three-terminal head C323 is closed, and the flow control valve C33 is closed, so that the external low-temperature water source enters the hot water storage tank 31 after exchanging heat in the shell-and-tube heat exchanger 23;

b. When the water level in the hot water storage tank 31 reaches the set water level, turn off the water supply pump B34, start the circulating water pump B35, close the first end C321 of the three-way solenoid valve 32, and turn on the second end of the three-way solenoid valve 32. Terminal C322 is connected to the third terminal C323, allowing the circulating water in the internal pipeline of the waste heat utilization device to circulate. The circulation route is hot water storage tank 31 - circulating water pump B35 - three-way solenoid valve 32 - shell and tube heat exchanger 23 - hot water storage tank 31. During the circulating water circulation process, the hot water discharged from the water collector 22 in the shell-and-tube heat exchanger 23 heats up after exchanging heat. As the water in the hot water storage tank 31 circulates, As the flow times and time increase, the water in the hot water storage tank 31 continues to heat up;

c. When the water temperature detection element in the hot water storage tank 31 detects that the temperature reaches the set outlet temperature or the water temperature no longer increases within 5 minutes, the flow control valve C33 opens and the hot water is discharged.

Claims (8)

1. The heat dissipation cooling system for high-temperature heat source equipment is characterized in that: comprises a heat insulation cooling cover, a water cooling circulation device and a waste heat utilization 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 shell-and-tube heat exchanger, a circulating water tank, a water-cooling type water chiller, a circulating water pump A, a water supply pump A 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 shell-and-tube heat exchanger is provided with a shell side inlet, a shell side outlet, a tube side inlet and a tube side outlet, and the tube side inlet 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, and the water inlet C is communicated with a tube side outlet of the tube shell type heat exchanger 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 A is arranged on a pipeline between the water outlet B of the water collector and the tube side inlet of the tube-shell heat exchanger; one end of the water supply pump A is communicated with a water supplementing port of the circulating water tank through a pipeline, and the other end of the water supply pump A 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 waste heat utilization device comprises a heat storage water tank, a three-way electromagnetic valve, a flow control valve C, a water supply pump B and a circulating water pump B; the heat storage water tank is provided with a first water outlet, a water inlet, a second water outlet and a water temperature detection element, and the water inlet is communicated with a shell side outlet of the shell-and-tube heat exchanger 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 second end head C is communicated with a shell side inlet of the shell-and-tube heat exchanger through a pipeline; one end of the flow control valve C is communicated with the second 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; one end of the water supply pump B is communicated with a first end head C of the three-way electromagnetic valve through a pipeline, and the other end of the water supply pump B is communicated with an external water source through a pipeline; one end of the circulating water pump B is communicated with a third end head C of the three-way electromagnetic valve through a pipeline, and the other end of the circulating water pump B is communicated with a first water outlet of the heat storage water tank through a pipeline.

2. The heat sink 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 heat sink 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. A heat sink system for high temperature heat source equipment as claimed in 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 heat dissipation and cooling method for the high-temperature heat source equipment is applied to the heat dissipation and cooling system for the high-temperature heat source equipment, and is characterized by comprising 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, starting a circulating water pump A to enable circulating water in an internal pipeline of the heat dissipation and cooling system to circulate continuously, wherein a circulating flow route is as follows: the heat exchange tube, the water collector, the shell-and-tube heat exchanger, the circulating water tank, the water cooling type water chiller, the water separator and the heat exchange tube are firstly used for absorbing heat and heating in the heat exchange tube, then the heat exchange and cooling are carried out with cold water in the shell-and-tube heat exchanger, then the heat is cooled and cooled in the water cooling type water chiller, and finally the heat is absorbed and heating is carried out in the heat exchange tube, so that the continuous heat dissipation and cooling of the high-temperature heat source equipment are realized.

6. The heat dissipation and cooling method for high temperature heat source equipment according to claim 5, wherein the heat dissipation and cooling method comprises the following steps: 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, the water supply pump a 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 heat dissipation and cooling method for high temperature heat source equipment as set forth in claim 6, wherein: 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 heat dissipation and cooling method for high temperature heat source equipment according to claim 7, wherein: in the step S03, hot water with a certain temperature can be prepared through a waste heat circulating device, and the operation is as follows:

a. when the water level of the heat storage water tank is lower than the set water level, starting a water supply pump B, communicating a first end head C and a second end head C of a three-way electromagnetic valve, closing a third end head C of the three-way electromagnetic valve, closing a flow control valve C, and enabling an external low-temperature water source to enter the heat storage water tank after heat exchange of a shell-and-tube heat exchanger;

b. when the water level in the heat storage water tank reaches the set water level, the water supply pump B is turned off, the circulating water pump B is started, the first end head C of the three-way electromagnetic valve is turned off, the second end head C of the three-way electromagnetic valve is communicated with the third end head C, circulating water in an internal pipeline of the waste heat utilization device circularly flows, the circulating flow route is the heat storage water tank, the circulating water pump B, the three-way electromagnetic valve, the shell-and-tube heat exchanger and the heat storage water tank, the temperature is raised after heat exchange with hot water discharged by the water collector in the shell-and-tube heat exchanger, and the water in the heat storage water tank continuously rises along with the increase of the circulating flow times and time of the water in the heat storage water tank;

c. when the water temperature detection element in the heat storage water tank detects that the temperature reaches the set water outlet temperature or the water temperature is not increased within 5 minutes, the flow control valve C is opened, and the hot water is discharged.