CN211012569U - Heat insulation and temperature reduction wall unit - Google Patents

Abstract

The heat insulation and cooling 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 shields the opening part of the heat insulation shell, and an air inlet and an air outlet are respectively formed between the two opposite side edges of the radiation metal plate and the heat insulation shell; the heat exchange tube is repeatedly bent and arranged in the heat exchange cavity of the heat insulation shell. The utility model discloses combined heat conduction, radiation heat transfer and three kinds of heat transfer modes of convection heat transfer, had higher heat exchange efficiency, the heat dissipation demand of high temperature heat source equipment in the factory building can be satisfied to the thermal-insulated cooling system of high temperature heat source based on thermal-insulated cooling wall body unit is built, effectively reduces the temperature of high temperature heat source equipment peripheral region.

Description

Thermal insulation and cooling wall unit

technical field

The utility model relates to the field of building materials, in particular to a thermal insulation and cooling wall unit.

Background technique

In recent years, with the development of industrial production towards refinement, integration and intelligence, the production lines in industrial plants have become more and more compact, and the resulting problem is that the heat production in the plant has increased significantly. At the same time, some workshops have high-temperature heat source equipment that produces a large amount of heat, which brings a lot of technical difficulties to the cooling and heat dissipation inside the workshop.

How to quickly, effectively and timely take away the heat generated by the high-temperature heat source equipment inside the factory building, ensure the uniform distribution of the temperature field in each area of the factory building, 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 building.

Industrial workshops are often tall and large, and air conditioners are usually used to improve the thermal environment in the workshop. Although the cooling load can be increased to meet the cooling and heat dissipation requirements of high-temperature heat source equipment in the workshop, the air conditioner consumes a lot of energy, does not meet the energy saving requirements, and cannot guarantee the workshop. The uniform distribution of the temperature field in each internal area cannot meet the thermal comfort requirements of workers.

SUMMARY OF THE INVENTION

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a thermal insulation and cooling wall unit, which is applied to the high temperature heat source thermal insulation and cooling system, and solves the problem of the harsh thermal environment of the current industrial workshop, and the use of air conditioners for high temperature heat source equipment. The cooling and heat dissipation method consumes a lot of energy, cannot ensure the uniform distribution of the temperature field in each area of the factory building, and cannot meet the thermal comfort needs of workers.

The technical scheme of the utility model is as follows: the thermal insulation and cooling wall unit comprises an thermal insulation shell, a radiant metal plate and a heat exchange tube; Connected to the opening of the heat exchange chamber; the radiant metal plate is installed at the opening of the heat insulation shell, and shields the open part of the heat insulation shell, which is formed between the two opposite sides and the heat insulation shell respectively The air inlet and the air outlet, the air inlet and the air outlet are respectively connected to the heat exchange cavity of the heat insulation shell; the heat exchange tube is repeatedly bent and arranged in the heat exchange cavity of the heat insulation shell, and some of its pipe sections are in contact with the radiant metal plate. The two ends respectively protrude from the heat exchange cavity of the heat insulating shell to form a water inlet end and a water outlet end.

A further technical scheme of the utility model 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 pipe is installed in the area between the air inlet and the air outlet in the heat exchange cavity.

The further technical scheme of the utility model is: it 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 heat insulation shell, and is adjacent to the air inlet; a plurality of S-shaped air guides The 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 interspersed with the heat exchange tubes. Correspondingly, the S-shaped air guide plate is provided with a heat exchange tube to pass 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 of the cross-flow fan, and the other end is adjacent to the air outlet.

The further technical scheme of the utility model is that: the cavity wall of the heat exchange cavity of the heat insulation shell is provided with an infrared heat reflection coating.

A further technical solution of the utility model is that: the air inlet and the air outlet are respectively installed with louvers with adjustable blade angles.

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

Compared with the prior art, the utility model has the following advantages:

1. The thermal insulation and cooling wall unit combines three heat exchange methods of heat conduction, radiation heat exchange and convection heat exchange, and has high heat exchange efficiency. The high temperature heat source thermal insulation and cooling system based on the thermal insulation and cooling wall unit can meet the The heat dissipation requirements of the high-temperature heat source equipment in the factory building can effectively reduce the temperature and heat in the surrounding area of the high-temperature heat source equipment, and greatly reduce the heat generated by the high-temperature heat source equipment from diffusing to the surrounding area, thereby avoiding the formation of local high-temperature areas inside the factory building. Thermal comfort needs of working operative workers.

1-a. On the one hand, the radiant metal plate (preferably a red copper plate) has excellent heat radiation performance and thermal conductivity, and it is arranged toward the high temperature heat source equipment to absorb the heat emitted by the high temperature heat source equipment, and is converted into the form of heat radiation and heat conduction. The heat pipe transfers heat to heat the heat exchange pipe, and the heat exchange pipe transfers heat to the circulating water in the heat exchange pipe in the form of heat radiation, so that the circulating water heats 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, so as to bring the heat out of the heat exchange chamber, thereby realizing efficient heat exchange.

1-b. On the other hand, when the cross-flow fan starts, the high-temperature air around the high-temperature heat source equipment is sucked into the heat exchange chamber through the air inlet, and the high-temperature air flows to the air outlet through the S-shaped air duct, which is relatively low in temperature. The heat pipe performs convective heat exchange, transfers heat to the heat exchange pipe, and then the cooled air is discharged from the air outlet, which further strengthens the heat exchange effect and improves the thermal comfort experience of operators.

2. The thermal insulation shell (preferably polyurethane thermal insulation board) of the thermal insulation and cooling wall unit has excellent thermal insulation effect, which can effectively block the external heat from entering the heat exchange cavity through the thermal insulation shell, so that the heat exchange tubes in the heat exchange cavity can be effectively blocked. It can only receive heat from one side of the radiant metal plate, thus ensuring its heat exchange efficiency for high temperature heat source equipment.

3. The thermal insulation and cooling wall unit adopts a modular design, which is convenient for transportation and assembly. It can be assembled into two pieces to form a thermal insulation and cooling wall. The two heat exchange tubes in the thermal insulation and cooling wall pass through the water inlet end and the water outlet respectively. The three-way joints are connected to form a parallel pipeline structure; compared with the series pipeline structure, the parallel pipeline structure reduces the flow pressure of the medium in the pipeline, and also allows the flow control valve A to independently regulate the inner wall of the thermal insulation and cooling wall. The flow in any one of the heat exchange tubes becomes controllable.

4. Based on the thermal insulation and cooling wall, a thermal insulation and cooling hood is constructed. The thermal insulation and cooling hood covers the high-temperature heat source equipment, and then the thermal insulation and cooling wall in the thermal insulation and cooling hood is connected with the external water-cooling circulation device, that is, the assembly is formed. High temperature heat source heat insulation and cooling system, high temperature heat source heat insulation and cooling system can achieve continuous and efficient cooling of high temperature heat source equipment.

The utility model will be further described below in conjunction with figures and embodiments.

Description of drawings

Fig. 1 is the structural representation of the utility model;

2 is a schematic diagram of the positional relationship of a cross-flow fan, an S-shaped air guide plate and a heat exchange tube in the utility model;

Fig. 3 is the structural schematic diagram of the thermal insulation and cooling wall in one viewing angle;

FIG. 4 is a schematic structural diagram of the thermal insulation and cooling wall from another perspective;

Fig. 5 is the structural representation of the connection of two thermal insulation and cooling wall units in the thermal insulation and cooling wall;

Fig. 6 is the structural representation of heat insulation and cooling cover;

FIG. 7 is a schematic diagram of the structure of the thermal insulation and cooling system.

Legend description: heat insulation shell 1; infrared heat reflective coating 11; radiation metal plate 2; heat exchange tube 3; inlet end 31; flow control valve A311; outlet end 32; cross-flow fan 4; S-shaped air guide Plate 5; S-shaped air duct 51; Air inlet 61; Air outlet 62; Shutter 63; Insulation cooling wall 100; Back plate 101; chamber 106; air intake fan 107; heat insulation and cooling cover 200; cavity 201; heat insulation plate 202; exhaust fan 203; water separator 301; water outlet A3011; water inlet A3012; Water outlet B3022; Shell and tube heat exchanger 303; Shell side inlet 3031; Shell side outlet 3032; Tube side inlet 3033; Tube side outlet 3034; Circulating water tank 304; Water inlet C3041; Water outlet C3042; Water chiller 305; water inlet D3051; water outlet D3052; circulating water pump A306; feed water pump A307; flow control valve B308.

Detailed ways

Example 1:

As shown in Figure 1-2, the thermal insulation and cooling wall unit includes a thermal insulation shell 1, a radiant metal plate 2, a heat exchange tube 3, a cross-flow fan 4 and an S-shaped air guide plate 5.

The heat insulating shell 1 is in the shape of a hollow cuboid, a heat exchange cavity is arranged in it, and an opening connected to the heat exchange cavity is arranged on one surface of the heat insulation shell 1 .

The radiant metal plate 2 is installed at the opening of the thermal insulation shell 1, and shields the open part of the thermal insulation shell 1, and forms an air inlet 61 and an outlet between the two opposite sides and the thermal insulation shell 1 respectively. The tuyere 62, the air inlet 61 and the air outlet 62 are respectively connected to the heat exchange cavity of the heat insulation shell 1, and are located at the upper end and the lower end of the heat exchange cavity respectively.

The heat exchange tube 3 is repeatedly bent and arranged in the area between the air inlet 61 and the air outlet 62 in the heat exchange cavity of the heat insulation shell 1, and part of the tube section is in contact with the radiant metal plate 2, and its two ends are respectively connected from the heat insulation shell. 1 protrudes out of the heat exchange cavity to form a water inlet end 31 and a water outlet end 32 .

The cross-flow fan 4 is installed in the heat exchange cavity of the heat insulating shell 1 and is adjacent to the air inlet 61 .

A plurality of S-shaped air guide plates 5 are arranged in parallel in the area between the air inlet 61 and the air outlet 62 in the heat exchange cavity of the thermal insulation shell 1, and are interleaved with the heat exchange tubes 3. Correspondingly, the S-shaped air guide plate The air plate 5 is provided with a pipe hole for the heat exchange pipe 3 to pass through, and an S-shaped air duct 51 is formed between the adjacent S-shaped air guide plates 5. One end of the S-shaped air duct 51 is connected to the air outlet of the cross-flow fan 4. Adjacent, and the other end is adjacent to the air outlet 62 .

Preferably, the material of the thermal insulation shell 1 is a polyurethane thermal insulation board (PU board), which has excellent moisture-proof, waterproof, thermal insulation and thermal insulation effects, and can effectively block the external heat from entering the heat exchange cavity through the thermal insulation shell 1, so that the exchange of The heat exchange tubes 3 in the thermal cavity can only receive heat from one side of the radiant metal plate 2 .

Preferably, an infrared heat reflective coating 11 is provided on the cavity wall of the heat exchange cavity of the heat insulation shell 1, and the infrared heat reflective coating 11 can reflect the heat back into the heat exchange cavity to prevent the heat in the heat exchange cavity from directly interacting with the heat insulation. The thermal insulation housing 1 is heated by the contact of the housing 1, thereby preventing the thermal insulation housing 1 from transferring heat to the outside due to the temperature difference.

Preferably, the radiant metal plate 2 is a red copper plate, which has excellent thermal conductivity, radiation heat transfer and convection heat transfer performance.

Preferably, a flow control valve A311 is installed on the water inlet end 31 of the heat exchange tube 3 to regulate the flow rate and pressure in the heat exchange tube 3, thereby achieving the effect of regulating the heat exchange and heat exchange efficiency of the thermal insulation and cooling wall unit. Effect.

Preferably, the heat exchange tubes 3 are arranged in a fork row. When the fork row is used, the fluid flows in the curved channel that alternately shrinks and expands between the tubes, which is more turbulent than the flow disturbance in the corridor channel between the tubes when the fork row is used. The heat transfer effect is stronger than the heat transfer effect when the parallel row is used.

Preferably, the air inlet 61 and the air outlet 62 are respectively provided with louvers 63 with adjustable blade angles, which are used to adjust the direction of the air in and out.

Briefly describe the working principle of the present utility model:

During operation, the radiant metal plate 2 absorbs external heat and transfers heat to the heat exchange tube 3. On the one hand, the part in contact with the body of the heat exchange tube 3 transfers heat to the heat exchange tube 3 in the form of heat conduction. On the other hand, The part of it that is not in contact with the tube body of the heat exchange tube 3 transfers heat to the heat exchange tube 3 by means of radiation heat exchange.

At the same time, the cross-flow fan 4 in the starting process continuously sucks the air with higher temperature into the heat exchange cavity of the thermal insulation shell 1 through the air inlet 61, and then the air with higher temperature flows into the S-shaped air duct 51, and finally flows from the air outlet. 62 outflow. During the flow of the air with a higher temperature in the S-shaped air duct 51, it conducts convective heat exchange with the heat exchange tube 3 with a relatively low temperature, transfers heat to the heat exchange tube 3, and finally discharges from the air outlet 62 with a relatively high temperature. low air.

At the same time, the circulating water (ie cold water) enters the heat exchange tube 3 through the water inlet end 31 of the heat exchange tube 3 , flows toward the water outlet end 32 of the heat exchange tube 3 , and finally flows from the water outlet end of the heat exchange tube 3 . 32 discharge. During the process of circulating water flowing in the heat exchange tube 3, the heat of the heat exchange tube 3 is absorbed, the temperature is continuously increased, and finally discharged from the water outlet end 32 of the heat exchange tube 3, thereby achieving the effect of continuous heat dissipation and cooling.

Briefly describe the application of the utility model:

The thermal insulation and cooling wall unit can be used to assemble the thermal insulation and cooling wall 100 . As shown in Figures 3-5, the thermal insulation and cooling wall 100 includes a thermal insulation and cooling wall unit, a back plate 101, a tee joint A102, a tee joint B103, an input pipe 104, an output pipe 105, an air inlet chamber 106 and an air intake Fan 107. The two thermal insulation and cooling wall units are arranged side by side and installed on the back panel 101 through their respective thermal insulation shells 1. The water inlet ends 31 of the heat exchange tubes 3 of the two thermal insulation and cooling wall units are opposite to each other, The water outlet ends 32 of the heat exchange tubes 3 of the two thermal insulation and cooling wall units are opposite to each other. The first and second ends of the tee joint A102 are respectively connected with the water outlet ends 32 of the heat exchange tubes 3 of the two thermal insulation and cooling wall units, and the third end of the tee joint A102 is communicated with the output pipe 105 . The first end and the second end of the tee joint B103 are respectively connected with the water inlet ends 31 of the heat exchange pipes 3 of the two thermal insulation and cooling wall units, and the third end of the tee joint B103 is connected with the input pipe 104 Connected. The air inlet chamber 106 is installed at the side of the thermal insulation and cooling wall unit, and its lower end is provided with an air inlet channel. side. The air intake fan 107 is installed in the air intake passage of the air intake chamber 106 .

The thermal insulation and cooling wall 100 can be used to build the thermal insulation and cooling cover 200 . As shown in FIG. 6 , the heat insulating and cooling cover 200 is in the shape of a hollow quadrangular prism as a whole (it may also be a hexagonal prism or an octagonal prism). The top wall of the wall 100 is a heat insulating plate 202 . The heat insulating plate 202 is provided with an air outlet connecting the upper and lower ends of the heat insulating plate 202 , and an exhaust fan 203 is installed on the air outlet.

The heat insulation and cooling cover 200 can be used to form a heat insulation and cooling system. As shown in FIG. 7 , the heat insulation and cooling system includes a heat insulation and cooling cover 200 and a water cooling circulation device. The water-cooled circulation device includes a water separator 301, a water collector 302, a shell-and-tube heat exchanger 303, a circulating water tank 304, a water-cooled chiller 305, a circulating water pump A306, a feed water pump A307 and a flow control valve B308. The water separator 301 is provided with a plurality of water outlets A3011 and one water inlet A3012. The water outlet A3011 is connected to the exposed end of the input pipe 104 of the thermal insulation and cooling wall 100 through pipes, and corresponds to the thermal insulation and cooling wall 100 one-to-one. The water collector 302 is provided with a plurality of water inlets B3021 and one water outlet B3022. The water inlet B3021 is connected to the exposed end of the output pipe 105 of the thermal insulation and cooling wall 100 through pipes, and corresponds to the thermal insulation and cooling wall 100 one-to-one. The shell-and-tube heat exchanger 303 is provided with a shell-side inlet 3031, a shell-side outlet 3032, a tube-side inlet 3033 and a tube-side outlet 3034. The tube-side inlet 3033 communicates with the water outlet B3022 of the water collector 302 through pipes. The circulating water tank 304 is provided with a water inlet C3041, a water outlet C3042, a water replenishing port 3043 and a water level detection element (not shown in the figure) for detecting the water level in its inner cavity. The water inlet C3041 exchanges heat with the shell-and-tube type through pipes. The tube side outlet 3034 of the device 303 communicates with each other. The water-cooled chiller 305 is provided with a water inlet D3051 and a water outlet D3052. The water inlet D3051 communicates with the water outlet C3042 of the circulating water tank 304 through a pipeline, and the water outlet D3052 communicates with the water inlet A3012 of the water separator 301 through a pipeline. The circulating water pump A306 is installed on the pipeline between the water outlet B3022 of the water collector 302 and the tube side inlet 3033 of the shell and tube heat exchanger 303 . One end of the feed pump A307 is connected to the water supply port 3043 of the circulating water tank 304 through a pipeline, and the other end is connected to an external cold water source through a pipeline. The flow control valve B308 is installed on the pipeline between the water outlet A3011 of the water separator 301 and the exposed end of the input pipe 104, and is in one-to-one correspondence with the thermal insulation and cooling wall 100.

Briefly describe the working process of the thermal insulation and cooling system:

1. The heat insulation and cooling cover 200 is placed outside the high temperature heat source equipment, so that the radiant metal plate 2 of each heat insulation and cooling wall unit is located inside the heat insulation and cooling cover 200 (ie, in the cavity 201).

2. Start the air intake fan 107 and the exhaust fan 203, so that the air with a relatively low temperature outside the heat insulation and cooling cover 200 enters the cavity 201 of the heat insulation and cooling cover 200 through the air intake fan 107, and the temperature inside the cavity 201 is relatively low. The high air is discharged to the outside of the heat insulation and cooling cover 200 through the exhaust fan 203, and through the exchange of air inside and outside the heat insulation and cooling cover 200, the heat emitted by the high temperature heat source equipment is continuously taken away, thereby realizing continuous heat dissipation and cooling of the high temperature heat source equipment. . In this step, an air duct (not shown in the figure) is installed at the air outlet on the top wall of the heat insulating and cooling cover 200, and the air with relatively high temperature exhausted by the exhaust fan 203 is guided to the outside for discharge through the air duct.

3. Start the circulating water pump A306 to continuously circulate the circulating water in the internal pipeline of the cooling system. The circulating flow route is: heat exchange tube 3 - water collector 302 - shell and tube heat exchanger 303 - circulating water tank 304 - water cooling Type chiller 305-water separator 301-heat exchange tube 3, in the process of circulating water circulating, first absorb heat in heat exchange tube 3 to heat up, and then exchange heat with cold water in shell and tube heat exchanger 303 to cool down, After that, the temperature is lowered and cooled in the water-cooled chiller 305 , and finally returned to the heat exchange tube 3 to repeat heat absorption and heating, and so on and so forth, so as to achieve continuous heat dissipation and cooling of the high-temperature heat source equipment.

Claims (6)

1. The thermal insulation and cooling wall unit is characterized in that: it comprises a thermal insulation shell (1), a radiation metal plate (2) and a heat exchange tube (3); the thermal insulation shell (1) is in the shape of a hollow cuboid, and is provided with The heat exchange cavity has an opening connected to the heat exchange cavity on one side surface; the radiant metal plate (2) is installed at the opening of the heat insulation shell (1), and the open part of the heat insulation shell (1) is installed A shield, which forms an air inlet (61) and an air outlet (62) between the two opposite sides and the heat insulating shell (1), respectively, and the air inlet (61) and the air outlet (62) are respectively connected to the heat insulation The heat exchange cavity of the shell (1); the heat exchange tube (3) is repeatedly bent and arranged in the heat exchange cavity of the heat insulation shell (1), and a part of the tube section is in contact with the radiant metal plate (2), and its two ends are respectively A water inlet end (31) and a water outlet end (32) are formed by protruding from the heat exchange cavity of the heat insulating shell (1). 2. The thermal insulation and cooling wall unit according to claim 1 is characterized in that: the air inlet (61) and the air outlet (62) are respectively located at the upper end and the lower end of the heat exchange cavity, and the heat exchange tube (3) is installed in the heat exchange chamber. The area between the air inlet (61) and the air outlet (62) in the thermal cavity. 3. The heat-insulating and cooling wall unit according to claim 1 or 2, characterized in that: it also comprises a cross-flow fan (4) and an S-shaped wind deflector (5); the cross-flow fan (4) is installed in the partition in the heat exchange cavity of the thermal shell (1) and adjacent to the air inlet (61); a plurality of S-shaped air guide plates (5) are arranged in parallel to the air inlet ( 61) and the area between the air outlet (62), and the heat exchange tubes (3) are interspersed and arranged in a staggered manner. A pipe hole, an S-shaped air duct (51) is formed between the adjacent S-shaped air guide plates (5), one end of the S-shaped air duct (51) is adjacent to the air outlet of the cross-flow fan (4), and the other end is adjacent to the outlet of the cross-flow fan (4). The tuyere (62) is adjacent. 4 . The thermal insulation and cooling wall unit according to claim 3 , wherein the cavity wall of the heat exchange cavity of the thermal insulation shell ( 1 ) is provided with an infrared heat reflection coating ( 11 ). 5 . 5 . The heat-insulating and cooling wall unit according to claim 4 , wherein the air inlet ( 61 ) and the air outlet ( 62 ) are respectively provided with shutters ( 63 ) with adjustable blade angles. 6 . 6 . The thermal insulation and cooling wall unit according to claim 5 , wherein a flow control valve A ( 311 ) is installed on the water inlet end ( 31 ) of the heat exchange pipe ( 3 ). 7 .

Images