Heating and ventilation heat energy-saving environment-friendly heat exchange device

Abstract

The utility model discloses a heating and ventilation heat energy-saving environment-friendly heat exchange device which comprises a first heat exchange box, a second heat exchange box, a high-temperature liquid injection pipe, a cooling liquid injection pipe, an annular plate and a cooling table, the cooling liquid injection pipe is arranged in the middle of the top wall of the first heat exchange box, and the hollow cooling table is arranged in the middle of an inner cavity of the first heat exchange box. The bottom end of the cooling liquid injection pipe penetrates through the top wall of the first heat exchange box and communicates with the cooling table, the end, located in the first heat exchange box, of the cooling liquid injection pipe is fixedly sleeved with an annular plate, and a high-temperature liquid injection pipe is arranged on one side of the top wall of the first heat exchange box; and the bottom end of the high-temperature liquid injection pipe penetrates through the top wall of the first heat exchange box and communicates with the annular plate, and evenly-distributed liquid drainage holes are formed in the bottom face of the annular plate. According to the heat exchange device, by arranging the cooling table, the contact area and contact time of the surface of the cooling table and high-temperature liquid are increased, secondary cooling of the high-temperature liquid is achieved by arranging the coil pipe, and the heat exchange effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange appliances, in particular to a heating and ventilation thermal energy-saving and environmentally friendly heat exchange device. Background Art

[0002] HVAC is an important part of the construction industry, and the liquid inside the HVAC needs to be heat exchanged when the seasons change.

[0003] After searching, the application with patent application number CN202222941101.1 discloses a high-efficiency HVAC thermal energy-saving and environmentally friendly heat exchange device, including a liquid injection box, a coolant injection box, a heat exchange box, a coolant discharge box and a liquid discharge box, wherein the liquid injection box, the coolant injection box, the heat exchange box, the coolant discharge box and the liquid discharge box are fixedly connected from top to bottom, a liquid injection port is provided at the central opening on the top of the liquid injection box, a coolant injection port is provided at the left opening on the top of the liquid injection box, a coolant injection pipe is fixedly connected to the inside of the liquid injection box just below the coolant injection port, and a plurality of liquid injection pipes are fixedly connected to the inside of the coolant injection box;

[0004] Although the high-efficiency HVAC thermal energy-saving and environmentally friendly heat exchange device can dissipate heat from high-temperature liquid through the threaded sheets and the coolant in the cooling pipe, the high-temperature liquid in the high-efficiency HVAC thermal energy-saving and environmentally friendly heat exchange device will be immediately discharged through the liquid discharge pipe after entering the heat exchange box, and the contact time with the cooling pipe is short, resulting in poor heat exchange effect. Utility Model Content

[0005] The utility model aims to provide a HVAC thermal energy-saving and environmentally friendly heat exchange device, which solves the problem in existing devices that high-temperature liquid will be immediately discharged through the liquid discharge pipe after entering the heat exchange box, the contact time with the cooling pipe is short, and the heat exchange effect is poor.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a HVAC thermal energy-saving and environmentally friendly heat exchange device, whose structure includes a first heat exchange box and a second heat exchange box, the second heat exchange box is arranged at the bottom of the first heat exchange box; it also includes a high-temperature liquid injection pipe, a cooling liquid injection pipe, an annular plate and a cooling table, a cooling liquid injection pipe is provided in the middle of the top wall of the first heat exchange box, and an internal hollow cooling table is provided in the middle of the inner cavity of the first heat exchange box, the bottom end of the cooling liquid injection pipe passes through the top wall of the first heat exchange box and is connected with the cooling table, the end of the cooling liquid injection pipe located inside the first heat exchange box is fixedly covered with an annular plate, a high-temperature liquid injection pipe is provided on one side of the top wall of the first heat exchange box, the bottom end of the high-temperature liquid injection pipe passes through the top wall of the first heat exchange box and is connected with the annular plate, and the bottom surface of the annular plate is provided with evenly distributed drainage holes.

[0007] Furthermore, a liquid outlet hole communicating with the second heat exchange box is provided on one side of the bottom surface of the first heat exchange box, and a liquid outlet pipe communicating with the second heat exchange box is fixedly installed on the bottom surface of the second heat exchange box.

[0008] Furthermore, the inner cavity of the second heat exchanger box is provided with a disc-shaped tube that can realize secondary cooling of the liquid, and a connecting tube connected to the cooling table is fixedly installed in the middle of the bottom wall of the first heat exchanger box, the bottom end of the connecting tube is fixedly connected to one end of the disc-shaped tube, and the other end of the disc-shaped tube is fixedly connected to a drain pipe, and the end of the drain pipe away from the disc-shaped tube passes through the side wall of the second heat exchanger box.

[0009] Furthermore, the cooling platform is in a step-like shape, and the diameter of the step-like cooling platform increases from small to large from top to bottom.

[0010] Furthermore, the diameter of the connecting pipe is half the diameter of the coolant injection pipe.

[0011] Furthermore, four universal wheels distributed in an array and having a self-locking structure are fixedly mounted on the bottom surface of the second heat exchange box.

[0012] Beneficial effects of the utility model:

[0013] The heating and ventilation thermal energy-saving and environmentally friendly heat exchange device injects cooling water into the interior of the cooling table through the cooling liquid injection pipe, and injects high-temperature liquid into the interior of the annular plate through the high-temperature liquid injection pipe. The high-temperature liquid contacts the surface of the cooling table in the first heat exchange box and can exchange heat with the cooling water once. Since the surface of the cooling table is stepped, the contact area and contact time between the surface of the cooling table and the high-temperature liquid are increased. By setting the diameter of the connecting pipe to half the diameter of the cooling liquid injection pipe, the loss of liquid in the cooling table can be slowed down, which is conducive to increasing the contact time between the cooling water in the cooling table and the high-temperature liquid in the first heat exchange box. The high-temperature liquid is sprinkled on the cooling table through the drainage hole, so that the high-temperature liquid is evenly distributed on the surface of the cooling table, thereby achieving the purpose of improving the heat exchange effect between the cooling water and the high-temperature liquid in the cooling table, and solving the problem that the high-temperature liquid in the existing device is immediately discharged from the liquid discharge pipe after entering the heat exchange box, and the contact time with the cooling pipe is short, resulting in poor heat exchange effect.

[0014] 2. The HVAC thermal energy-saving and environmentally friendly heat exchange device improves the heat exchange effect of the high-temperature liquid by making the high-temperature liquid discharged into the second heat exchange box contact with the surface of the coiled tube, and then performs secondary heat exchange with the cooling water, and finally discharges it through the liquid outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the cooling table structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the second heat exchange box of the present utility model.

[0019] In the figure:

[0020] 1. First heat exchange box; 2. Second heat exchange box; 3. High-temperature liquid injection pipe; 31. Ring plate; 32. Drain hole; 33. Liquid outlet hole; 34. Liquid outlet pipe; 4. Coolant injection pipe; 41. Cooling table; 42. Connecting pipe; 43. Disc pipe; 44. Drain pipe; 5. Universal wheel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] like Figure 1-4As shown: it includes a first heat exchange box 1, a second heat exchange box 2 is fixedly installed on the bottom surface of the first heat exchange box 1, a coolant injection pipe 4 is fixedly installed in the middle of the top surface of the first heat exchange box 1, and an internal hollow cooling platform 41 is fixedly installed in the middle of the bottom surface of the first heat exchange box 1. The cooling platform 41 is stepped, and the bottom end of the coolant injection pipe 4 passes through the top surface of the first heat exchange box 1 and is connected with the cooling platform 41. The end of the coolant injection pipe 4 located inside the first heat exchange box 1 is fixedly sleeved with an annular plate 31, and a high-temperature liquid injection pipe 3 is fixedly installed on one side of the top surface of the first heat exchange box 1. The bottom end of the high-temperature liquid injection pipe 3 passes through the top surface of the first heat exchange box 1 and is connected with the annular plate 31. The bottom surface of the annular plate 31 is provided with evenly distributed drainage holes 32, and the diameter of the connecting pipe 42 is half of the diameter of the coolant injection pipe 4. By passing the cooling water through the coolant The injection pipe 4 is injected into the interior of the cooling table 41, and the high-temperature liquid is injected into the interior of the annular plate 31 through the high-temperature liquid injection pipe 3. The high-temperature liquid contacts the surface of the cooling table 41 inside the first heat exchange box 1, and can perform heat exchange with the cooling water. Since the surface of the cooling table 41 is stepped, the contact area and contact time between the surface of the cooling table 41 and the high-temperature liquid are increased. By setting the diameter of the connecting pipe 42 to half the diameter of the coolant injection pipe 4, the loss of liquid inside the cooling table 41 can be slowed down, which is conducive to increasing the contact time between the cooling water in the cooling table 41 and the high-temperature liquid inside the first heat exchange box 1. The high-temperature liquid is sprinkled on the cooling table 41 through the drainage hole 32, so that the high-temperature liquid is evenly distributed on the surface of the cooling table 41, thereby achieving the purpose of improving the heat exchange effect between the cooling water and the high-temperature liquid inside the cooling table 41;

[0024] Embodiment 2:

[0025] like Figure 1-4 As shown: a liquid outlet 33 connected to the second heat exchange box 2 is provided on one side of the bottom surface of the first heat exchange box 1, a liquid outlet pipe 34 connected thereto is fixedly installed on the bottom surface of the second heat exchange box 2, a connecting pipe 42 connected to the cooling stage 41 is fixedly installed in the middle of the bottom surface of the first heat exchange box 1, one end of a disc-shaped tube 43 is fixedly connected to the bottom end of the connecting pipe 42, and a drain pipe 44 is fixedly connected to the other end of the disc-shaped tube 43, and the end of the drain pipe 44 away from the disc-shaped tube 43 passes through the side wall of the second heat exchange box 2, so that the high-temperature liquid discharged into the second heat exchange box 2 is in contact with the surface of the disc-shaped tube 43, and then undergoes secondary heat exchange with the cooling water, and is finally discharged through the liquid outlet pipe 34, thereby improving the heat exchange effect of the high-temperature liquid;

[0026] Embodiment three:

[0027] like Figure 1-2 As shown, four array-distributed universal wheels 5 with a self-locking structure are fixedly installed on the bottom surface of the second heat exchange box 2, and the universal wheels 5 are used to facilitate the movement of the device.

[0028] The working principle and use process of the utility model: When the HVAC thermal energy-saving and environmentally friendly heat exchange device is used, cooling water is injected into the interior of the cooling platform 41 through the cooling liquid injection pipe 4, and the high-temperature liquid is injected into the interior of the annular plate 31 through the high-temperature liquid injection pipe 3. The cooling water inside the cooling platform 41 will enter the interior of the disc tube 43 through the connecting pipe 42, and finally be discharged through the drain pipe 44. After the high-temperature liquid enters the interior of the annular plate 31, it will spill out through the drain hole 32, and then contact the surface of the cooling platform 41. Since the surface of the cooling platform 41 is stepped, the contact area between the surface of the cooling platform 41 and the high-temperature liquid is increased, which is beneficial to improving the heat exchange effect between the cooling water and the high-temperature liquid in the cooling platform 41. After the high-temperature liquid undergoes a heat exchange once inside the first heat exchange box 1, it will be discharged into the interior of the second heat exchange box 2 through the liquid outlet hole 33, and then contact the disc tube 43 for secondary heat exchange, and finally be discharged through the liquid outlet pipe 34, thereby improving the heat exchange efficiency.

[0029] The above description is only used to illustrate some principles of the utility model. This specification is not intended to limit the utility model to the specific structure and application scope shown and described. Therefore, all corresponding modifications and equivalents that may be used belong to the patent scope applied for the utility model.

[0030] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art.

Claims

1. A heating and ventilation heat energy-saving and environmentally friendly heat exchange device, comprising a first heat exchange box and a second heat exchange box, wherein the second heat exchange box is arranged at the bottom of the first heat exchange box, and is characterized in that: It also includes a high-temperature liquid injection pipe, a cooling liquid injection pipe, an annular plate and a cooling table. A cooling liquid injection pipe is provided in the middle of the top wall of the first heat exchange box, and an internal hollow cooling table is provided in the middle of the inner cavity of the first heat exchange box. The bottom end of the cooling liquid injection pipe passes through the top wall of the first heat exchange box and is connected with the cooling table. One end of the cooling liquid injection pipe located inside the first heat exchange box is fixedly mounted with an annular plate. A high-temperature liquid injection pipe is provided on one side of the top wall of the first heat exchange box. The bottom end of the high-temperature liquid injection pipe passes through the top wall of the first heat exchange box and is connected with the annular plate. The bottom surface of the annular plate is provided with evenly distributed drainage holes.

2. A heating and ventilation thermal energy-saving and environmentally friendly heat exchange device according to claim 1, characterized in that: A liquid outlet hole communicating with the second heat exchange box is provided on one side of the bottom surface of the first heat exchange box, and a liquid outlet pipe communicating with the second heat exchange box is fixedly installed on the bottom surface of the second heat exchange box.

3. A heating and ventilation thermal energy-saving and environmentally friendly heat exchange device according to claim 1 or 2, characterized in that: The inner cavity of the second heat exchange box is provided with a coiled tube that can realize secondary cooling of the liquid. A connecting tube connected to the cooling table is fixedly installed in the middle of the bottom wall of the first heat exchange box. The bottom end of the connecting tube is fixedly connected to one end of the coiled tube, and the other end of the coiled tube is fixedly connected to a drain pipe. The end of the drain pipe away from the coiled tube passes through the side wall of the second heat exchange box.

4. The HVAC energy-saving and environmentally friendly heat exchange device according to claim 1 is characterized in that: The cooling platform is in a step shape, and the diameter of the step-shaped cooling platform increases from small to large from top to bottom.

5. The HVAC energy-saving and environmentally friendly heat exchange device according to claim 3 is characterized in that: The diameter of the connecting pipe is half the diameter of the coolant injection pipe.

6. The HVAC energy-saving and environmentally friendly heat exchange device according to claim 1 is characterized in that: Four universal wheels distributed in an array and having a self-locking structure are fixedly installed on the bottom surface of the second heat exchange box.

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