Green heating and ventilation energy recoverer

Abstract

The utility model relates to the technical field of heating and ventilation energy recovery, in particular to a green heating and ventilation energy recoverer which comprises a frame, an inlet pipe, an outlet pipe, a pipeline and a filtering device, the side face of the frame is fixedly connected with the inlet pipe, the end, away from the inlet pipe, of the frame is fixedly connected with the outlet pipe, the pipeline is arranged in the frame, and the filtering device is arranged in the pipeline. The filtering device is arranged at one end of the inlet pipe and comprises a connecting pipe and a filtering element. According to the utility model, by arranging the filtering device, a medium entering the equipment is effectively filtered, the effect of filtering the medium entering the equipment is achieved, and the problems that when the equipment is used and heating and ventilation energy is recycled, the medium in a heating and ventilation pipe heats an internal pipeline of the equipment, and the heating and ventilation pipe cannot be used for a long time are solved. And foreign matters are easily adsorbed on the surface of the pipeline in the equipment, and the pipeline wall is thickened, so that energy recovered by the equipment is reduced, and the practicability of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of HVAC energy recovery technology, and in particular to a green HVAC energy recovery device. Background Technology

[0002] As the international energy crisis intensifies, research on energy efficiency is constantly being strengthened. As a major energy consumer, heating systems often waste some residual heat in their equipment into the air, which is both a waste of energy and detrimental to environmental protection. Therefore, a green HVAC energy recovery device is used to recover residual heat energy.

[0003] Existing technologies, such as the utility model patent with publication number CN220871094U, disclose a heating, ventilation, and air conditioning (HVAC) heat recovery system. This patent employs a compressor, a heat recovery heat exchanger, a first heat exchanger, and a second heat exchanger. It also includes: a first pipeline, one end connected to the output end of the compressor and the other end connected to the heat recovery heat exchanger; a second pipeline, one end connected to the output end of the compressor and the other end connected to either the first or second heat exchanger, and equipped with a first valve that can be opened or closed; and a third pipeline, one end connected to the output end of the compressor and the other end connected to either the first or second heat exchanger, and equipped with a second valve that can be opened or closed. The diameter of the third pipeline is smaller than that of the second pipeline. This utility model device solves the problem in related technologies where air conditioning systems typically cannot select different heat recovery modes according to the user's actual needs, resulting in heat waste and a low user experience.

[0004] In daily operation, during the process of recovering residual energy inside the HVAC pipes, the medium inside the HVAC pipes heats the pipes inside the equipment. Due to prolonged use, foreign matter easily adheres to the surface of the pipes inside the equipment, thickening the pipe walls and causing a decrease in the energy recovered by the equipment. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as pipe walls easily accumulating foreign matter and thickening, thus reducing energy recovery, and to propose a green HVAC energy recovery device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a green HVAC energy recovery device, comprising a frame, an inlet pipe, an outlet pipe, a pipeline, and a filter device. The inlet pipe is fixedly connected to the side of the frame, and the outlet pipe is fixedly connected to the end of the frame away from the inlet pipe. A pipeline is arranged inside the frame. The filter device is arranged at one end of the inlet pipe. The filter device includes a connecting pipe and a filter element. The connecting pipe is disposed at one end of the inlet pipe, and the filter element is disposed inside the connecting pipe. A connecting block is fixedly connected to the side of the inlet pipe. A groove is formed on the surface of the connecting block, and a limit ring is slidably connected to the inner wall of the groove. A groove is formed at one end of the limit ring.

[0007] Furthermore, a spring is fixedly connected to the bottom of the inner wall of the groove, and the end of the spring away from the groove is fixedly connected to the bottom of the pull groove. By setting the spring inside the groove and the pull groove, a pulling force can be applied to the limiting ring, which reduces the situation where the limiting ring is difficult to engage the clamp rod with the inside of the connecting pipe during the use of the equipment, causing the connecting pipe to easily detach from the inlet pipe.

[0008] Furthermore, a pull handle is fixedly connected to the upper surface of the limiting ring, and a locking hole is provided on the surface of the connecting tube, and a pull handle is provided to facilitate the movement of the limiting ring.

[0009] Furthermore, a locking rod is fixedly connected inside the limiting ring, and the locking rod engages with the inside of the locking hole. The locking rod is provided to facilitate the limiting of the connecting pipe.

[0010] Furthermore, a replacement device is provided inside the connecting tube. The replacement device includes a retaining ring and a fixing block. The retaining ring is located inside the connecting tube, and the fixing block is fixedly connected to the side of the connecting tube. The surface of the fixing block has a sliding hole, and the surface of the retaining ring has a fixing hole. By setting the retaining ring, the filter element can be fixed, reducing the situation where the filter element is generally fixedly connected to the inside of the connecting tube during use, which would require replacing the connecting tube along with the filter element and causing resource waste.

[0011] Furthermore, a movable rod is slidably connected inside the sliding hole, and a fixed rod is fixedly connected to one end of the movable rod. The fixed rod is provided to facilitate the limiting of the retaining ring.

[0012] Furthermore, the fixed rod is engaged with the inside of the fixed hole, and a weight is fixedly connected to the end of the movable rod away from the fixed rod. The weight is provided to facilitate applying gravity to the movable rod for limiting its movement.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, when the device is in use, the user connects the device to the HVAC pipe to recover residual energy inside the HVAC pipe. When using the device, the user pulls the handle, which moves the limiting ring. The moving limiting ring then causes the spring to deform and generate elastic force, which in turn moves the locking rod, connecting one end of the connecting pipe to the inlet pipe. The user then releases the handle, the spring returns to its original position, and the limiting ring moves, causing the locking rod to position the connecting pipe. By setting up a filter device, the medium entering the device is effectively filtered, reducing the risk of the medium inside the HVAC pipe heating the internal pipes during HVAC energy recovery. Furthermore, due to prolonged use, foreign matter easily accumulates on the surface of the pipes inside the device, thickening the pipe walls and reducing the energy recovery rate. This improves the practicality of the device.

[0015] 2. In this utility model, by setting up a replacement device, when the equipment is in use, the user moves the weight upwards, and the weight moves, which in turn moves the moving rod, which in turn moves the fixed rod, causing it to move out of the fixed hole. The retaining ring then loses its restraint and is pulled to move out of the connecting tube, thus freeing the filter element. This replacement device effectively replaces the filter element, achieving rapid replacement and reducing the risk of filter element blockage inside the connecting tube after prolonged use, which necessitates disassembling and replacing the entire connecting tube due to its high cost. This improves the practicality of the equipment. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a green HVAC energy recovery device;

[0017] Figure 2 This utility model provides a side view structural diagram of a green HVAC energy recovery device;

[0018] Figure 3 This utility model provides a partial structural schematic diagram of a green HVAC energy recovery device;

[0019] Figure 4 This utility model proposes a green HVAC energy recovery device. Figure 3 Schematic diagram of the structure at point A in the middle;

[0020] Figure 5 This utility model proposes a green HVAC energy recovery device. Figure 3 Schematic diagram of the structure at point B.

[0021] Legend: 1. Frame; 2. Inlet pipe; 3. Outlet pipe; 4. Pipe; 5. Filter device; 51. Connecting pipe; 52. Connecting block; 53. Limiting ring; 54. Pull groove; 55. Groove; 56. Spring; 57. Locking hole; 58. Locking rod; 59. Pull handle; 510. Filter element; 6. Replacement device; 61. Locking ring; 62. Fixing block; 63. Sliding hole; 64. Fixing hole; 65. Moving rod; 66. Fixing rod; 67. Weight. Detailed Implementation

[0022] Please see Figures 1-5 This utility model provides a technical solution: a green HVAC energy recovery device, including a frame 1, an inlet pipe 2, an outlet pipe 3, a pipe 4 and a filter device 5. The inlet pipe 2 is fixedly connected to the side of the frame 1, and the outlet pipe 3 is fixedly connected to the end of the frame 1 away from the inlet pipe 2. The pipe 4 is arranged inside the frame 1.

[0023] The following section will describe the specific setup and function of its filter device 5 and replacement device 6.

[0024] In this embodiment: the filter device 5 is set at one end of the inlet pipe 2. The filter device 5 includes a connecting pipe 51 and a filter element 510. The connecting pipe 51 is set at one end of the inlet pipe 2. The filter element 510 is set inside the connecting pipe 51. A connecting block 52 is fixedly connected to the side of the inlet pipe 2. A groove 54 is opened on the surface of the connecting block 52. A limit ring 53 is slidably connected to the inner wall of the groove 54. A groove 55 is opened at one end of the limit ring 53.

[0025] Specifically, a spring 56 is fixedly connected to the bottom of the inner wall of the groove 55, and the end of the spring 56 away from the groove 55 is fixedly connected to the bottom of the pull groove 54.

[0026] In this embodiment: by setting springs 56 inside the groove 55 and the pull groove 54, a pulling force can be applied to the limiting ring 53, which reduces the situation where the limiting ring 53 is difficult to engage the locking rod 58 with the inside of the connecting pipe 51 during use, causing the connecting pipe 51 to easily detach from the inlet pipe 2.

[0027] Specifically, a pull handle 59 is fixedly connected to the upper surface of the limiting ring 53, and a locking hole 57 is opened on the surface of the connecting tube 51. The pull handle 59 is provided to facilitate the movement of the limiting ring 53.

[0028] Specifically, a locking rod 58 is fixedly connected inside the limiting ring 53. The locking rod 58 is engaged with the inside of the locking hole 57. The locking rod 58 is provided to facilitate the limiting of the connecting pipe 51.

[0029] In this embodiment: a replacement device 6 is provided inside the connecting pipe 51. The replacement device 6 includes a retaining ring 61 and a fixing block 62. The retaining ring 61 is located inside the connecting pipe 51. The fixing block 62 is fixedly connected to the side of the connecting pipe 51. A sliding hole 63 is provided on the surface of the fixing block 62. A fixing hole 64 is provided on the surface of the retaining ring 61.

[0030] In this embodiment: by setting the retaining ring 61, the filter element 510 can be fixed, which reduces the situation where the filter element 510 is generally fixedly connected to the inside of the connecting pipe 51 during use, which would cause the connecting pipe 51 to be replaced when the filter element 510 is replaced, resulting in a waste of resources.

[0031] Specifically, a movable rod 65 is slidably connected inside the sliding hole 63, and a fixed rod 66 is fixedly connected to one end of the movable rod 65. The fixed rod 66 is provided to facilitate the limiting of the retaining ring 61.

[0032] Specifically, the fixed rod 66 is internally engaged with the fixed hole 64, and a weight 67 is fixedly connected to the end of the movable rod 65 away from the fixed rod 66. The weight 67 is set to facilitate applying gravity to the movable rod 65 for limiting its movement.

[0033] Working Principle: When using the equipment, the user connects it to the HVAC pipe to recover residual energy inside the HVAC pipe. During use, the user pulls the handle 59, which moves the limiting ring 53. The limiting ring 53 then causes the spring 56 to deform, generating elastic force. This movement then moves the locking rod 58, connecting the connecting pipe 51 to one end of the inlet pipe 2. Releasing the handle 59 causes the spring 56 to reset, moving the limiting ring 53. This movement then moves the locking rod 58 to position the connecting pipe 51. The filter device 5 effectively filters the medium entering the equipment, reducing the risk of the medium heating the internal pipes 4 during HVAC energy recovery. Due to prolonged use, foreign matter easily accumulates on the surface of the internal pipes 4, thickening the pipe walls and reducing the energy recovery rate. This improves the equipment's practicality. When the device is in use, the user moves the weight 67 upwards, which in turn moves the moving rod 65. The moving rod 65 then moves the fixing rod 66, disengaging it from the fixing hole 64. The retaining ring 61 then loses its restraint and is pulled to disengage from the connecting pipe 51. The filter element 510 then loses its restraint. The replacement device 6 allows for quick replacement of the filter element 510, reducing the risk of clogging during prolonged use. This avoids the need for complete disassembly and replacement of the connecting pipe 51, which is expensive and could lead to wasted funds. This improves the practicality of the device.

Claims

1. A green HVAC energy recovery device, comprising a frame (1), an inlet pipe (2), an outlet pipe (3), a pipeline (4), and a filter device (5), characterized in that: An inlet pipe (2) is fixedly connected to the side of the frame (1), and an outlet pipe (3) is fixedly connected to the end of the frame (1) away from the inlet pipe (2). A pipe (4) is provided inside the frame (1). A filter device (5) is provided at one end of the inlet pipe (2). The filter device (5) includes a connecting pipe (51) and a filter element (510). The connecting pipe (51) is connected to one end of the inlet pipe (2). The filter element (510) is located inside the connecting pipe (51). A connecting block (52) is fixedly connected to the side of the inlet pipe (2). A groove (54) is provided on the surface of the connecting block (52). A limit ring (53) is slidably connected to the inner wall of the groove (54). A groove (55) is provided at one end of the limit ring (53).

2. The green HVAC energy recovery device according to claim 1, characterized in that: A spring (56) is fixedly connected to the bottom of the inner wall of the groove (55), and the end of the spring (56) away from the groove (55) is fixedly connected to the bottom of the pull groove (54).

3. The green HVAC energy recovery device according to claim 2, characterized in that: A pull handle (59) is fixedly connected to the upper surface of the limiting ring (53), and a locking hole (57) is opened on the surface of the connecting tube (51).

4. A green HVAC energy recovery device according to claim 3, characterized in that: The limiting ring (53) is fixedly connected to a locking rod (58), which engages with the inside of the locking hole (57).

5. A green HVAC energy recovery device according to claim 1, characterized in that: The connecting pipe (51) is provided with a replacement device (6). The replacement device (6) includes a retaining ring (61) and a fixing block (62). The retaining ring (61) is located inside the connecting pipe (51). The fixing block (62) is fixedly connected to the side of the connecting pipe (51). The surface of the fixing block (62) is provided with a sliding hole (63). The surface of the retaining ring (61) is provided with a fixing hole (64).

6. A green HVAC energy recovery device according to claim 5, characterized in that: A movable rod (65) is slidably connected inside the sliding hole (63), and a fixed rod (66) is fixedly connected to one end of the movable rod (65).

7. A green HVAC energy recovery device according to claim 6, characterized in that: The fixed rod (66) is engaged with the inside of the fixed hole (64), and a weight (67) is fixedly connected to the end of the movable rod (65) away from the fixed rod (66).

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