Multi-stage heat recovery fresh air processor of central air conditioner

Abstract

The utility model discloses a central air conditioner multistage heat recovery fresh air processor, which relates to the technical field of central air conditioners, and comprises a box body and a heat recovery assembly arranged in the box body, support plates are symmetrically and fixedly arranged at the bottom of the box body, and the heat recovery assembly comprises a heat exchange box fixedly arranged at the top of the support plates. A liquid heat-conducting medium is injected into the heat exchange box, a partition plate is arranged in the heat exchange box, and the heat exchange box is divided into a heating cavity and a heat release cavity by the partition plate; a plurality of communicating pipes are arranged at the bottom of the heat exchange box, and the two ends of each communicating pipe communicate with the heating cavity and the heat release cavity correspondingly. According to the multi-stage heat recovery fresh air processor of the central air conditioner, through the cooperative arrangement of the heat exchange box, the communicating pipe and the air inlet box, the contact area of fresh air and a heat-conducting medium is increased, so that the heat exchange efficiency and speed are effectively improved, then energy utilization is achieved, energy consumption needed by follow-up fresh air heating is reduced, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of central air conditioners, in particular to a central air conditioner multi-stage heat recovery fresh air processor. Background Art

[0002] Central air conditioning is composed of one or more cold and heat source systems and multiple air conditioning systems. This system is different from traditional refrigerant air conditioning. It centrally processes air to achieve comfort requirements. It uses the principle of liquid gasification refrigeration to provide the required cooling capacity for the air conditioning system to offset the heat load of the indoor environment; the heating system provides the required heat for the air conditioning system to offset the heating and cooling load of the indoor environment. Central air conditioning is often used in homes, offices, shopping malls and other scenes.

[0003] A central air conditioner heat recovery structure is disclosed in the Chinese utility model patent application number: CN202321209990.0, the structure includes a central air conditioner body and a fresh air device arranged at one end of the central air conditioner body, a processor is arranged on one side wall of the central air conditioner body, the inner cavity of the processor is arranged hollow, and one end of the processor is arranged with an inner air inlet. The central air conditioner heat recovery structure indirectly contacts the circulating air in the processor through the heat-conducting rod and the outer wall of the exchanger made of aluminum alloy, so that the fresh air and the indoor exhaust air can exchange heat. However, the efficiency of heat exchange in this way is poor, and the heat transfer speed on the heat-conducting rod is slow. The contact area between the fresh air and the heat-conducting rod is small, and the heat on the heat-conducting rod cannot be quickly transferred to the fresh air, so that the heat exchange operation between the indoor air and the fresh air cannot be effectively performed.

[0004] Therefore, it is necessary to propose a central air-conditioning multi-stage heat recovery fresh air processor to solve the above problems. Utility Model Content

[0005] Technical problem to be solved: The purpose of the utility model is to provide a central air-conditioning multi-stage heat recovery fresh air processor to solve the problem of the existing central air-conditioning heat recovery structure proposed in the above background technology, which makes indirect contact with the circulating air in the processor through the heat-conducting rod and the outer wall of the exchanger made of aluminum alloy, so that the fresh air and the indoor exhaust air can exchange heat with each other. However, the heat exchange efficiency of this method is poor, and the heat transfer speed on the heat-conducting rod is slow. The contact area between the fresh air and the heat-conducting rod is small, and the heat on the heat-conducting rod cannot be quickly transferred to the fresh air, so that the heat exchange operation between the indoor air and the fresh air cannot be effectively performed.

[0006] Technical solution: To achieve the above purpose, the utility model is implemented through the following technical solutions: a central air-conditioning multi-stage heat recovery fresh air processor, including a box body and a heat recovery component arranged in the box body, the bottom of the box body is symmetrically fixedly installed with a support plate, the heat recovery component includes a heat exchange box fixedly installed on the top of the support plate, the heat exchange box is filled with liquid heat-conducting medium, and a partition is arranged in the heat exchange box, which divides the heat exchange box into a heating chamber and a heat release chamber; a plurality of connecting pipes are arranged at the bottom of the heat exchange box, and the two ends of the connecting pipes are respectively connected to the heating chamber The heating chamber and the heat release chamber are connected, and air inlet boxes are provided at the bottom of the heating chamber and the heat release chamber. Exhaust pipes and air intake pipes are respectively provided at the lower parts of the heating chamber and the heat release chamber. Fans are provided in the exhaust pipes and the air intake pipes. One ends of the exhaust pipes and the air intake pipes are connected to the corresponding air inlet boxes, and the other ends penetrate the box body and are respectively connected to the central air-conditioning exhaust port and the external environment; a plurality of one-way exhaust valves are provided on the top of the air inlet box, and the tops of the heating chamber and the heat release chamber are respectively connected to the air outlet pipes and the air inlet pipes, and the other ends of the air outlet pipes and the air inlet pipes are respectively connected to the external environment and the central air-conditioning inlet.

[0007] Preferably, the exhaust pipe and the intake pipe are both connected with a U-shaped tube, the other ends of the two U-shaped tubes extend into the heating chamber and the heat release chamber respectively, and are connected to the corresponding air intake boxes respectively, and the height of the horizontal section of the U-shaped tube is higher than the height of the liquid heat transfer medium.

[0008] Preferably, a dehumidification filter is provided in the air inlet pipe, and a sterilization filter and a dust removal filter are provided at the input ends of the exhaust pipe and the intake pipe, and the sterilization filter is located on the inner side of the dust removal filter.

[0009] Beneficial effect: Compared with the prior art, the utility model provides a central air-conditioning multi-stage heat recovery fresh air processor, which has a unique structure and is easy to use. When in use, two fans are started at the same time, and the fan in the exhaust pipe exhausts the indoor air. After the air passes through the dust removal filter and the sterilization filter, it enters the liquid medium in the heating chamber. The liquid medium absorbs the heat carried by the air. In addition, since the air will float up quickly in the liquid, the air that has lost heat will be discharged into the external environment from the outlet pipe at the top of the heating chamber; at the same time, the fan in the intake pipe will exhaust the outside air. Fresh air is sucked in, passes through the dust removal filter and the sterilization filter, and then enters the liquid medium in the heat release chamber. Due to the effect of heat transfer, when the fresh air is discharged from the liquid medium, it will absorb part of the heat in the liquid medium, thereby increasing its own temperature. The heated fresh air enters the air inlet pipe, passes through the dehumidification filter in the air inlet pipe and enters the room. Through the coordinated setting of the heat exchange box, connecting pipe and air inlet box, the contact area between the fresh air and the heat transfer medium is increased, thereby effectively improving the efficiency and speed of heat exchange, thereby realizing energy utilization, reducing the energy consumption required for subsequent heating of the fresh air, and achieving energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional side view schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a cross-sectional schematic diagram of the structure of the utility model;

[0012] Figure 3 It is a cross-sectional schematic diagram of the structure of the utility model in the horizontal direction;

[0013] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the structure of the utility model.

[0014] In the figure: 1. Box body; 2. Support plate; 3. Heat exchange box; 4. Partition; 5. Connecting pipe; 6. Air inlet box; 7. One-way exhaust valve; 8. U-shaped pipe; 9. Exhaust pipe; 10. Fan; 11. Sterilization filter; 12. Dust removal filter; 13. Intake pipe; 14. Exhaust pipe; 15. Intake pipe; 16. Dehumidification filter; 17. Water pump. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Embodiment 1: This embodiment 1 provides a central air conditioner multi-stage heat recovery fresh air processor, which directly improves the existing central air conditioner cold and heat recovery structure and has a unique structure. Please refer to Figure 1-3 As shown, it includes a box body 1 and a heat recovery component arranged in the box body 1. A support plate 2 is symmetrically fixedly installed on the bottom of the box body 1. The heat recovery component includes a heat exchange box 3 fixedly installed on the top of the support plate 2. The heat exchange box 3 is filled with liquid heat transfer medium. A partition 4 is arranged in the heat exchange box 3. The partition 4 divides the heat exchange box 3 into a heating chamber and a heat release chamber.

[0017] There are many kinds of liquid heat-conducting media, for example, pure water. A plurality of connecting pipes 5 are provided at the bottom of the heat exchange box 3. The two ends of the connecting pipes 5 are respectively connected to the heating chamber and the heat release chamber. An air inlet box 6 is provided at the bottom of the heating chamber and the heat release chamber. An exhaust pipe 9 and an air intake pipe 13 are respectively provided at the lower part of the heating chamber and the heat release chamber. A fan 10 is provided in the exhaust pipe 9 and the air intake pipe 13. One end of the exhaust pipe 9 and the air intake pipe 13 are connected to the corresponding air inlet box 6, and the other end passes through the box body 1, and is respectively connected to the exhaust port of the central air-conditioning and the external environment.

[0018] There are many ways to connect the exhaust pipe 9 with the heating chamber, and the intake pipe 13 with the heat release chamber, for example: the exhaust pipe 9 and the intake pipe 13 are both connected with a U-shaped pipe 8, the other ends of the two U-shaped pipes 8 extend into the heating chamber and the heat release chamber respectively, and are respectively connected with the corresponding air inlet boxes 6, and the height of the horizontal section of the U-shaped pipe 8 is higher than the height of the liquid heat transfer medium; to prevent the heat transfer medium from flowing out of the air inlet box 6, a plurality of one-way exhaust valves 7 are provided on the top of the air inlet box 6, and the tops of the heating chamber and the heat release chamber are respectively connected with an outlet pipe 14 and an intake pipe 15, and the other ends of the outlet pipe 14 and the intake pipe 15 are respectively connected with the external environment and the central air-conditioning air inlet.

[0019] A dehumidification filter 16 is provided in the air inlet pipe 15, and a sterilizing filter 11 and a dust removal filter 12 are provided at the input ends of the exhaust pipe 9 and the intake pipe 13. The sterilizing filter 11 is located on the inner side of the dust removal filter 12, and is used to sterilize and filter the exhausted and inhaled gases to prevent bacteria and dust from contaminating the heat transfer medium.

[0020] When we recover heat from the central air conditioner, multiple heat recovery components can be set in the box 1, and the multiple heat recovery components can be connected end to end to increase the heat recovery effect of the air conditioner. When the central air conditioner multi-stage heat recovery fresh air processor is in use, two fans 10 are started at the same time. The fan 10 in the exhaust pipe 9 discharges the indoor air. After being filtered by the dust removal filter 12 and the sterilization filter 11, the air enters the air inlet pipe 15 in the heating chamber. The air is discharged from the one-way exhaust valve 7 on the air inlet pipe 15 into the liquid medium. The liquid medium absorbs the heat carried by the air. In addition, since the air will float up quickly in the liquid, the air that loses heat will be discharged into the external environment from the outlet pipe 14 at the top of the heating chamber.

[0021] At the same time, the fan 10 in the intake pipe 13 draws in fresh air from the outside. After passing through the dust removal filter 12 and the sterilization filter 11, the fresh air enters the intake pipe 15 in the heat release chamber. After being discharged from the one-way exhaust valve 7 on the intake pipe 15, the fresh air enters the liquid medium. Due to the effect of heat transfer, when the fresh air is discharged from the liquid medium, it will absorb part of the heat in the liquid medium, thereby increasing its own temperature, thereby realizing energy utilization, reducing the energy consumption required for subsequent heating of the fresh air, and achieving energy-saving effects. The heated fresh air enters the intake pipe 15, passes through the dehumidification filter 16 in the intake pipe 15, and enters the room.

[0022] Embodiment 2: Embodiment 2 is different from Embodiment 1 in that Figure 2-3 As shown, a water pump 17 is fixedly installed at the bottom of the box body 1, and the input and output ends of the water pump 17 are respectively connected to the heating chamber and the heat release chamber to accelerate heat transfer and make the temperatures of the two chambers the same.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A central air conditioner multi-stage heat recovery fresh air processor, comprising a housing (1) and a heat recovery component arranged in the housing (1), characterized in that: A support plate (2) is symmetrically fixedly mounted on the bottom of the box body (1); the heat recovery assembly comprises a heat exchange box (3) fixedly mounted on the top of the support plate (2); a liquid heat-conducting medium is filled in the heat exchange box (3); a partition (4) is provided in the heat exchange box (3); the partition (4) separates the heat exchange box (3) into a heating chamber and a heat release chamber; a plurality of connecting pipes (5) are provided at the bottom of the heat exchange box (3); two ends of the connecting pipes (5) are respectively connected to the heating chamber and the heat release chamber; an air inlet box (6) is provided at the bottom of the heating chamber and the heat release chamber; and an exhaust box (6) is provided at the bottom of the heating chamber and the heat release chamber. A fan (10) is provided in each of the exhaust pipe (9) and the intake pipe (13); one end of the exhaust pipe (9) and the intake pipe (13) is connected to a corresponding air inlet box (6); the other end of the exhaust pipe (9) and the intake pipe (13) passes through the box body (1) and is respectively connected to an air outlet of a central air conditioner and an external environment; a plurality of one-way exhaust valves (7) are provided on the top of the air inlet box (6); the tops of the heating chamber and the heat release chamber are respectively connected to an air outlet pipe (14) and an air inlet pipe (15); the other ends of the air outlet pipe (14) and the air inlet pipe (15) are respectively connected to the external environment and the air inlet of the central air conditioner.

2. A central air conditioning multi-stage heat recovery fresh air processor according to claim 1, characterized in that: The exhaust pipe (9) and the intake pipe (13) are both connected to a U-shaped tube (8), the other ends of the two U-shaped tubes (8) respectively extend into the heating chamber and the heat release chamber, and are respectively connected to the corresponding air intake boxes (6), and the height of the horizontal section of the U-shaped tube (8) is higher than the height of the liquid heat transfer medium.

3. A central air conditioning multi-stage heat recovery fresh air processor according to claim 1, characterized in that: A dehumidification filter (16) is provided in the air inlet pipe (15), and a sterilizing filter (11) and a dust removal filter (12) are provided at the input ends of the exhaust pipe (9) and the air intake pipe (13), and the sterilizing filter (11) is located on the inner side of the dust removal filter (12).

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