A gas-liquid two-medium heat exchange system

Abstract

The present invention relates to the technical field of heat exchangers, and particularly to a gas-liquid dual-medium heat exchange system. It includes a heat exchange box body, a convex portion is arranged in the middle of the heat exchange box body, a heat accumulator is installed on the outer wall of the convex portion, several heat conduction rods are arranged at one end of the heat accumulator, the end portions of the heat conduction rods are inserted into the inside of the convex portion, a heat exchange component is installed inside the heat exchange box body, and a flow guide plate is connected to the bottom inner wall of the heat exchange box body below the heat exchange component, a grid support plate is fixedly connected to the bottom inner wall of the heat exchange box body below the flow guide plate, and a filtering component is arranged on the top of the grid support plate. The structure of the present invention is simply designed and easy to operate. By utilizing the circulation of gas or liquid inside the heat exchange component, heat exchange inside the heat exchange box body is realized, and the heat inside the heat exchange box body can be led out, absorbed and stored for convenient subsequent reuse.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, and particularly to a gas-liquid dual-medium heat exchange system. Background Art

[0002] Heat exchangers are important components in various power plants and chemical production. They are widely used in fields such as chemical engineering, metallurgical engineering, nuclear engineering, aviation, and aerospace engineering. Since the working fluids of various chemicals have extremely high temperatures, the high-temperature environment is not conducive to the good reaction of the medium. Therefore, heat exchangers are needed to remove the heat in chemical equipment to cool it. Among them, part of the heat can also be utilized as waste heat. The dual-medium heat exchange device can effectively improve the working efficiency of chemical production, improve the reliability of chemical equipment, improve the working environment of the equipment, and reduce the accident rate by cooling and heat exchanging the materials in chemical equipment.

[0003] The Chinese utility model patent with the publication number CN207866030U discloses a heat exchange device and a heat exchange system, which relates to the technical field of heat exchange equipment. The heat exchange device has the characteristics of good heat exchange effect and strong practicability, and solves the technical problems of the existing heat exchange equipment being huge in volume, occupying a large area, being difficult to be discovered in case of leakage, having high manufacturing cost and low heat exchange efficiency, and having poor heat exchange effect and poor practicability.

[0004] Based on the above patents, in actual use, the selection method of the heat exchange medium in the prior art is too single. For example, the above patent uses water medium for heat exchange, and part of the heat is directly discharged by the air blower, resulting in the direct discharge of this part of heat energy without utilization, causing heat energy loss. And when using only water medium for heat exchange, when the heat exchange medium water has a high temperature due to insufficient cooling after heat exchange and cannot have an effect on subsequent heat exchange, it will affect the normal use of the heat exchange device. Therefore, this problem needs to be improved. Summary of the Invention

[0005] The object of the present invention is to propose a gas-liquid dual-medium heat exchange system for the problems existing in the background art.

[0006] The technical solution of the present invention, a gas-liquid dual-medium heat exchange system, includes a heat exchange box body, a heat accumulator, a fan, a water pump, a water tank, and pipelines for connection. A heat exchange component is installed in the heat exchange box body; the inlet end of the heat exchange component is connected to a second communication pipe, and the outlet end of the heat exchange component is connected to the first port of a three-way valve; the second port of the three-way valve is provided with a second return pipe and is connected to the water tank; the third port of the three-way valve is provided with an exhaust pipe.

[0007] A water storage shell and a plurality of liquid spraying nozzles facing downward are arranged at the top of the heat exchange box body; the water storage shell is connected to a diversion pipe; a diversion plate is arranged along the side wall of the heat exchange box body, and the diversion plate is located below the heat exchange assembly; a grid support plate is installed at the bottom of the heat exchange box body, and a filtering assembly is arranged on the grid support plate; a first return pipe is arranged on the heat exchange box body, and the first return pipe is located below the grid support plate; the other end of the first return pipe is connected to a water tank;

[0008] The water pump is provided with a water suction pipe connected to the water tank, the output end of the water pump is provided with a water outlet pipe, and the water outlet pipe is connected to the first port of a first three-way pipe; a first electromagnetic valve is arranged at the second port of the first three-way pipe and is connected to the diversion pipe; the third port of the first three-way pipe is sequentially connected to a second electromagnetic valve and a first communication pipe, and the first communication pipe is connected to the first port of a second three-way pipe;

[0009] The second port of the second three-way pipe is sequentially connected to a third electromagnetic valve and a fan; the third port of the second three-way pipe is connected to a second communication pipe;

[0010] The water pump pumps the water in the water tank through the first three-way pipe. One way enters the pipeline of the heat exchange assembly through the second electromagnetic valve, the first communication pipe, the second three-way pipe, and the second communication pipe; after heat exchange, it returns to the water tank through a three-way valve and a second return pipe; the other way is atomized and sprayed out through the first electromagnetic valve, the diversion pipe, the water storage shell and the nozzles, and after being collected by the diversion plate and filtered by the filtering assembly, it returns to the water tank through the first return pipe at the bottom of the grid support plate, completing liquid heat exchange;

[0011] The fan is started to blow air into the pipeline of the heat exchange assembly through the second three-way pipe and the second communication pipe. After gas heat exchange, it is discharged outward through a three-way valve and an exhaust pipe, completing gas heat exchange.

[0012] Preferably, an outward convex part is arranged on the heat exchange box body; the heat accumulator is installed on the outer wall of the outward convex part; a plurality of heat conduction rods are arranged at one end of the heat accumulator, and the ends of the heat conduction rods are inserted into the interior of the outward convex part.

[0013] Preferably, the heat accumulator is connected to an external heat exchange system to export and reuse the stored heat.

[0014] Preferably, the heat exchange assembly includes an "S"-shaped heat exchange pipe; a corrugated pipe section for increasing the contact area is arranged on the heat exchange pipe.

[0015] Preferably, the filtering assembly includes a fixed frame. An upper filter screen is arranged at the top of the fixed frame. Below the upper filter screen, a first filter gauze layer, an activated carbon layer, and a second filter gauze layer are sequentially arranged from top to bottom. A lower filter screen is fixedly connected below the second filter gauze layer at the bottom of the fixed frame to filter the returned water.

[0016] Preferably, an openable door panel is arranged on the outer wall of the heat exchange box body; the position of the door panel is directly opposite to the filtering assembly.

[0017] Preferably, a control switch for controlling the opening and closing of the door panel is provided on the heat exchange box body.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] The structure of the present invention is simply designed and easy to operate. By utilizing the circulation of gas or liquid inside the heat exchange component, heat exchange inside the heat exchange box body is achieved. When it is necessary to use liquid for heat exchange and cooling inside the heat exchange box body, the third solenoid valve is closed, and by starting the water pump, the water inside the water tank is pumped out. Part of the water enters the heat exchange component inside the heat exchange box body, and after heat exchange, it flows back into the water tank. Another part of the water passes through the diversion pipe and is sprayed out from the nozzle to atomize and cool the inside of the heat exchange box body. The accumulated water flows into the inside of the filter component, and after being filtered and purified by the filter component, it flows through the grid support plate and into the bottom, and then flows back into the water tank through the first return pipe; when using a gas medium for heat exchange, the water pump is closed, and the opening and closing port on the three-way valve at the end of the second return pipe and the heat exchange component is adjusted to connect the heat exchange component with the exhaust pipe, and the second return pipe is kept closed. The fan operates to compress the external air and flow it into the inside of the heat exchange component, and then discharges it to the outside of the heat exchange box body to achieve the heat exchange and discharge of heat energy. At the same time, the provided heat accumulator is used to export and absorb the heat inside the heat exchange box body. The heat conducting rod made of metal material absorbs the heat inside the heat exchange box body and conducts the heat into the inside of the heat accumulator for storage, so that the heat inside the heat exchange box body is absorbed and the absorbed heat can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of the heat exchange system of the present invention.

[0021] Figure 2 It is a front view of the heat exchange system of the present invention.

[0022] Figure 3 It is a schematic structural diagram of the heat exchange component in the present invention.

[0023] Figure 4 It is a schematic structural diagram of the filter component in the present invention.

[0024] Figure 5 It is a partial structural schematic diagram of the connection between the water pump and the fan in the present invention.

[0025] Reference numerals: 1, heat exchange box body; 2, control switch; 3, convex part; 4, heat accumulator; 5, heat conduction rod; 6, heat exchange component; 7, flow guide plate; 8, grid support plate; 9, filter component; 10, first return pipe; 11, water tank; 12, second return pipe; 13, water pump; 14, water suction pipe; 15, water outlet pipe; 16, first three-way pipe; 17, flow guide pipe; 18, water storage shell; 19, spray head; 20, first solenoid valve; 21, first connecting pipe; 22, second solenoid valve; 23, second three-way pipe; 24, second connecting pipe; 25, second connecting pipe; 26, third solenoid valve; 27, fan; 28, door panel; 29, three-way valve; 30, exhaust pipe; 601, heat exchange pipe; 602, corrugated pipe section; 901, fixed frame; 902, upper filter screen; 903, first filter gauze layer; 904, activated carbon layer; 905, second filter gauze layer; 906, lower filter screen. Detailed implementation mode Embodiment 1

[0026] A gas-liquid double-medium heat exchange system proposed by the present invention, as Figures 1-5 shown, includes a heat exchange box body 1, a heat accumulator 4, a fan 27, a water pump 13, a water tank 11 and pipelines for connection. A heat exchange component 6 is installed in the heat exchange box body 1; the heat exchange component 6; the inlet end of the heat exchange component 6 is connected to the second connecting pipe 24, and the outlet end of the heat exchange component 6 is connected to the first port of the three-way valve 29; the second port of the three-way valve 29 is provided with a second return pipe 12 and is connected to the water tank 11; the third port of the three-way valve 29 is provided with an exhaust pipe 30;

[0027] A water storage shell 18 and a plurality of spray heads 19 for spraying liquid downward are arranged at the top of the heat exchange box body 1; the water storage shell 18 is connected to the flow guide pipe 17; a flow guide plate 7 is arranged along the side wall of the heat exchange box body 1, and the flow guide plate 7 is located below the heat exchange component 6; a grid support plate 8 is installed at the bottom of the heat exchange box body 1, and a filter component 9 is arranged on the grid support plate 8; a first return pipe 10 is arranged on the heat exchange box body 1, and the first return pipe 10 is located below the grid support plate 8; the other end of the first return pipe 10 is connected to the water tank 11;

[0028] The water pump 13 is provided with a water suction pipe 14 connected to the water tank 11, the output end of the water pump 13 is provided with a water outlet pipe 15, and the water outlet pipe 15 is connected to the first port of the first three-way pipe 16; the second port of the first three-way pipe 16 is provided with a first solenoid valve 20 and is connected to the flow guide pipe 17; the third port of the first three-way pipe 16 is sequentially connected to a second solenoid valve 22 and a first connecting pipe 21, and the first connecting pipe 21 is connected to the first port of the second three-way pipe 23;

[0029] The second port of the second three-way pipe 23 is sequentially connected to a third solenoid valve 26 and a fan 27; the third port of the second three-way pipe 23 is connected to the second connecting pipe 24;

[0030] The water pump 13 pumps the water in the water tank 11 through the first three-way pipe 16. One way is that the water enters the pipeline of the heat exchange component 6 from the second solenoid valve 22, the first connecting pipe 21, the second three-way pipe 23, and the second connecting pipe 24; after heat exchange, it flows back to the water tank 11 through the three-way valve 29 and the second return pipe 12; the other way is that the water passes through the first solenoid valve 20 and the diversion pipe 17, is atomized and sprayed out through the water storage shell 18 and the nozzle 19, is collected by the diversion plate 7, filtered by the filter component 9, and then flows back to the water tank 11 through the first return pipe 10 at the bottom of the grid support plate 8, completing the liquid heat exchange;

[0031] Start the fan 27 to blow air into the pipeline of the heat exchange component 6 through the second three-way pipe 23 and the second connecting pipe 24. After the gas heat exchange, it is discharged outward through the three-way valve 29 and the exhaust pipe 30, completing the gas heat exchange.

[0032] As Figure 1 shown, an outward convex part 3 is arranged on the heat exchange box body 1; the heat accumulator 4 is installed on the outer wall of the outward convex part 3; several heat conducting rods 5 are arranged at one end of the heat accumulator 4, and the ends of the heat conducting rods 5 are inserted into the interior of the outward convex part 3. The heat accumulator 4 is connected to an external heat exchange system to export and reuse the stored heat.

[0033] The heat accumulator 4 is fixedly connected to the outer wall of the outward convex part 3 through screws. A sealing ring is arranged on the outer wall of the outward convex part 3 corresponding to the connection part of the heat conducting rods 5, which is convenient for the installation and fixation of the heat accumulator 4 and is also convenient for improving the sealing performance of the connection part of the heat conducting rods 5.

[0034] As Figure 1 and 3 shown, the heat exchange component 6 includes an "S"-shaped heat exchange pipe 601; a corrugated pipe section 602 for increasing the contact area is arranged on the heat exchange pipe 601. The heat exchange component 6 is a component made of stainless steel material, which is convenient for improving the heat exchange efficiency.

[0035] As Figure 1 shown, the top of the diversion plate 7 is seamlessly welded to the inner wall of the heat exchange box body 1, and the grid support plate 8 is fixedly connected to the inner wall of the heat exchange box body 1 through screws, which is convenient for the connection and fixation of the diversion pipe and the grid support plate 8.

[0036] As Figure 1 and 4 shown, the filter component 9 includes a fixed frame 901. An upper filter screen 902 is arranged at the top of the fixed frame 901. Below the upper filter screen 902, a first filter gauze layer 903, an activated carbon layer 904, and a second filter gauze layer 905 are arranged from top to bottom in sequence. A lower filter screen 906 is fixedly connected to the bottom of the fixed frame 901 below the second filter gauze layer 905, which is convenient for filtering and purifying the water flowing back to the inside of the water tank 11 during use and can also avoid the problem of subsequent blockage.

[0037] AsFigure 2 As shown, an openable door panel 28 is provided on the outer wall of the heat exchange box body 1; the position of the door panel 28 is directly opposite to the filter assembly 9. A control switch 2 for controlling the opening and closing of the door panel 28 is provided on the heat exchange box body 1. It is convenient to take out the filter assembly 9 for cleaning and replacement during use.

[0038] Working principle: The present invention designs a dual-medium heat exchange system, and the specific structure is as shown in the attached Figures 1-5 As shown, in this technical solution, the heat exchange box body 1 is in contact with the high-temperature equipment for heat conduction; by using the flow of gas or liquid inside the heat exchange component 6, heat exchange inside the heat exchange box body 1 is realized. When it is necessary to use liquid for heat exchange and cooling inside the heat exchange box body 1, the third solenoid valve 26 is closed, and by starting the water pump 13, the water inside the water tank 11 is pumped out. Part of the water enters the heat exchange component 6 inside the heat exchange box body 1, and after heat exchange, it flows back into the water tank 11. Another part of the water passes through the diversion pipe 17 and sprays out from the nozzle 19 to atomize and cool the inside of the heat exchange box body 1. The accumulated water flows into the inside of the filter assembly 9, and after being filtered and purified by the filter assembly 9, it flows through the grid support plate 8 to the bottom, and then flows back into the water tank 11 through the first return pipe 10; when using gas medium for heat exchange, the water pump is closed, and the opening and closing port on the three-way valve 29 at the end of the second return pipe 12 is adjusted to connect the heat exchange component 6 with the exhaust pipe 30, and keep it closed with the second return pipe 12. The fan 27 operates to compress the external air to flow into the inside of the heat exchange component 6 and discharge it to the outside of the heat exchange box body 1 to realize the heat exchange and discharge of heat energy. At the same time, the provided heat accumulator 4 is used to export and absorb the heat inside the heat exchange box body 1. The heat conducting rod 5 made of metal material absorbs the heat inside the heat exchange box body 1 and conducts the heat into the inside of the heat accumulator 4 for storage, so that the heat inside the heat exchange box body 1 is absorbed and the absorbed heat can be used for reuse.

[0039] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art to which the present invention pertains.

Claims

1. A gas-liquid two-medium heat exchange system, comprising a heat exchange box body (1), a heat accumulator (4), a fan (27), a water pump (13), a water tank (11) and pipelines for connection, characterized in that, A heat exchange component (6) is installed inside the heat exchange box body (1); the inlet end of the heat exchange component (6) is connected to the second communication pipe (24), and the outlet end of the heat exchange component (6) is connected to the first port of the three-way valve (29); the second port of the three-way valve (29) is provided with a second return pipe (12) and is connected to the water tank (11); the third port of the three-way valve (29) is provided with an exhaust pipe (30). A water storage shell (18) and a plurality of liquid spraying nozzles (19) spraying downward are arranged at the top of the heat exchange box body (1); the water storage shell (18) is connected to the diversion pipe (17); a diversion plate (7) is arranged along the side wall of the heat exchange box body (1), and the diversion plate (7) is located below the heat exchange component (6); a grid support plate (8) is installed at the bottom of the heat exchange box body (1), and a filtering component (9) is arranged on the grid support plate (8); the heat exchange box body (1) is provided with a first return pipe (10), and the first return pipe (10) is located below the grid support plate (8); the other end of the first return pipe (10) is connected to the water tank (11). The water pump (13) is provided with a water suction pipe (14) connected to the water tank (11), the output end of the water pump (13) is provided with a water outlet pipe (15), and the water outlet pipe (15) is connected to the first port of the first three-way pipe (16); the second port of the first three-way pipe (16) is provided with a first electromagnetic valve (20) and is connected to the diversion pipe (17); the third port of the first three-way pipe (16) is sequentially connected to a second electromagnetic valve (22) and a first communication pipe (21), and the first communication pipe (21) is connected to the first port of the second three-way pipe (23). The second port of the second three-way pipe (23) is sequentially connected to a third electromagnetic valve (26) and a blower (27); the third port of the second three-way pipe (23) is connected to the second communication pipe (24). The water pump (13) pumps the water in the water tank (11) through the first three-way pipe (16). One way enters the pipeline of the heat exchange component (6) from the second electromagnetic valve (22), the first communication pipe (21), the second three-way pipe (23), and the second communication pipe (24); after heat exchange, it flows back into the water tank (11) through the three-way valve (29) and the second return pipe (12); the other way is atomized and sprayed out through the first electromagnetic valve (20), the diversion pipe (17), the water storage shell (18) and the nozzles (19), is collected through the diversion plate (7), filtered by the filtering component (9), and flows back into the water tank (11) from the first return pipe (10) at the bottom of the grid support plate (8) to complete liquid heat exchange. The blower (27) is started to blow air into the pipeline of the heat exchange component (6) through the second three-way pipe (23) and the second communication pipe (24), and the gas is discharged outward through the three-way valve (29) and the exhaust pipe (30) after heat exchange to complete gas heat exchange.

2. The gas-liquid two-medium heat exchange system according to claim 1, characterized in that, An outward convex part (3) is arranged on the heat exchange box body (1); the heat accumulator (4) is installed on the outer wall of the outward convex part (3); a plurality of heat conducting rods (5) are arranged at one end of the heat accumulator (4), and the ends of the heat conducting rods (5) are inserted into the interior of the outward convex part (3).

3. The gas-liquid two-medium heat exchange system according to claim 1, wherein, The heat accumulator (4) is connected to an external heat exchange system to export and reuse the stored heat.

4. A gas-liquid two-medium heat exchange system according to claim 1, characterized in that, The heat exchange component (6) includes an "S"-shaped heat exchange tube (601); a corrugated pipe section (602) for increasing the contact area is arranged on the heat exchange tube (601).

5. A gas-liquid two-medium heat exchange system according to claim 1, characterized in that The filtration component (9) includes a fixed frame (901). An upper filter screen (902) is arranged at the top of the fixed frame (901). A first filter gauze layer (903), an activated carbon layer (904), and a second filter gauze layer (905) are sequentially arranged from top to bottom below the upper filter screen (902). A lower filter screen (906) is fixedly connected to the bottom of the fixed frame (901) below the second filter gauze layer (905) to filter the recirculating water.

6. The gas-liquid two-medium heat exchange system according to claim 1, wherein An openable door panel (28) is arranged on the outer wall of the heat exchange box body (1); the position of the door panel (28) is directly opposite to the filtration component (9).

7. The gas-liquid two-medium heat exchange system according to claim 6, characterized in that, A control switch (2) for controlling the opening and closing of the door panel (28) is arranged on the heat exchange box body (1).

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