Energy heat recovery device for building

Abstract

The invention discloses an energy heat recovery device for buildings, and relates to the technical field of building energy conservation, the energy heat recovery device comprises a recovery shell, and a ventilation bin is fixed on one side of the recovery shell; the recovery pipeline is fixed on the side wall, close to the ventilation bin, of the recovery shell; the discharge pipeline is fixed on the side wall, far away from the ventilation bin, of the recovery shell; the multiple heat exchange pipes are arranged, are fixed in the ventilation bin and extend into the recovery shell; the cleaning assembly is installed in the recycling shell and connected with the multiple heat exchange pipes in a sleeving mode; and the flow guide assembly is arranged on the cleaning assembly in a sliding manner.

Description

Technical Field

[0001] The invention relates to the technical field of building energy conservation, in particular to an energy heat recovery device for buildings. Background Art

[0002] Heat recovery involves recovering excess heat (cold) or waste heat (cold) from inside and outside a building and using the recovered heat (cold) as a heat source for heating (cold) or other heating equipment. Heat recovery can be categorized as partial heat recovery or full heat recovery, depending on the amount of heat recovered by the heat recovery unit. Partial heat recovery only recovers a portion of the heat emitted by the chiller, while full heat recovery recovers virtually all of the heat released into the environment.

[0003] Existing heat recovery devices recover waste heat (cold) in buildings and then use it for heat exchange through heat exchangers. However, the heat exchange efficiency is too low. After long-term use, dirt accumulates on the heat exchange tubes, which greatly reduces the heat recovery efficiency. In addition, water flushing is used to clean the heat exchange tubes, which has a low cleaning effect on the internal heat exchange tubes. In severe cold weather, water flushing can easily cause frost, affecting the heat recovery efficiency.

[0004] In view of the above problems, the present invention provides an energy heat recovery device for buildings to solve the above problems. Summary of the Invention

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a building energy heat recovery device, characterized in that it comprises:

[0006] The recovery shell has a ventilation chamber fixed on one side;

[0007] A recovery pipe is fixed on the side wall of the recovery shell close to the ventilation chamber;

[0008] A discharge pipe is fixed on a side wall of the recovery shell away from the ventilation chamber;

[0009] a heat exchange tube, configured as a plurality, fixed in the ventilation chamber and extending into the recovery shell;

[0010] A cleaning assembly is installed in the recovery shell and is sleeved with the plurality of heat exchange tubes;

[0011] The guide assembly is slidably arranged on the cleaning assembly.

[0012] Furthermore, preferably, the heat exchange tube is a U-shaped tube, the U-shaped bend of which is located at one end away from the ventilation bin, and one end of the heat exchange tube is an air inlet and the other end is an air outlet.

[0013] Furthermore, preferably, a partition plate is fixed in the middle position inside the ventilation bin, and the partition plate separates the air inlet and the air outlet of the heat exchange tube, and divides the ventilation bin into an air inlet bin and an air outlet bin.

[0014] Further, preferably, the cleaning component includes:

[0015] A fixed plate, fixed in the recovery shell and close to the U-shaped bend of the heat exchange tube;

[0016] The guide shafts are configured as a plurality of guide shafts and are symmetrically fixed between the fixed plate and the ventilation chamber;

[0017] The driving screws are configured as two, symmetrically and rotatably arranged between the fixed disk and the ventilation chamber;

[0018] The driving motors are configured as two, both of which are fixed on the fixed plate and correspond to the two driving screws;

[0019] an upper cleaning plate, configured as a plurality of plates, equidistantly slidably disposed on a plurality of the guide shafts, and threadedly connected to one of the drive screws;

[0020] The lower cleaning plates are configured as a plurality of plates, the number of which is the same as that of the upper cleaning plates, and are equidistantly slidably arranged on the plurality of guide shafts, staggered with the upper cleaning plates, and threadedly connected to another of the driving screws.

[0021] Furthermore, preferably, a recovery bin is provided between the fixed disk and the recovery pipe, and the U-shaped bends of the drive motor and the heat exchange tube are both located in the recovery bin.

[0022] Furthermore, preferably, the upper cleaning plate and the lower cleaning plate have the same structure, and are both provided with a plurality of cleaning holes corresponding to the heat exchange tubes. A plurality of cleaning brushes are fixed in the cleaning holes, and the plurality of cleaning brushes are arranged in a staggered manner.

[0023] Furthermore, preferably, the flow guide assembly includes:

[0024] A plurality of sliding plates are provided, each of which is slidably arranged on one side of the upper cleaning plate and the lower cleaning plate close to each other;

[0025] A plurality of sliding blocks are provided, and are slidably arranged on a side of the sliding plate close to the upper cleaning plate, with a return spring provided between the sliding plate and the sliding plate;

[0026] Wherein, cleaning holes are also opened at corresponding positions of the sliding plate and the heat exchange tube, and a plurality of cleaning brushes are fixed in the cleaning holes.

[0027] Compared with the prior art, the present invention provides a building energy heat recovery device with the following beneficial effects:

[0028] In the present invention, the adjustable spacing between the cleaning plates can expand the airflow distribution range in the initial stage, and the S-shaped path can be used to extend the heat exchange time in the later stage to achieve staged heat recovery optimization. The S-shaped guide design of the guide component allows the airflow to contact the heat exchange tube more fully, and the heat exchange efficiency is significantly improved. The waste heat of the driving motor is exchanged with the heat exchange tube through the recovery bin, reducing the system's own energy consumption and realizing multi-level energy utilization. The reciprocating motion of the cleaning plate is combined with the staggered cleaning brush to achieve full coverage cleaning of the heat exchange tube surface to avoid dust accumulation and blockage. After cleaning, the brush body is automatically cleaned by gas backflushing technology to reduce manual intervention. A sealed space is formed when the sliding plate is closed to ensure backflushing cleaning without leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of an energy heat recovery device for buildings;

[0030] Figure 2 This is a schematic diagram of the internal structure of a ventilation chamber of an energy heat recovery device for a building;

[0031] Figure 3 A schematic diagram of the cleaning component structure of an energy heat recovery device for buildings;

[0032] Figure 4 This is a schematic diagram of the structure of a flow guide component of an energy heat recovery device for a building;

[0033] In the figure: 1. Recovery shell; 2. Ventilation chamber; 3. Recovery pipe; 4. Discharge pipe; 5. Heat exchange tube; 6. Cleaning assembly; 7. Guide assembly; 21. Partition plate; 22. Air inlet chamber; 23. Air outlet chamber; 61. Fixed plate; 62. Guide shaft; 63. Drive screw; 64. Drive motor; 65. Upper cleaning plate; 66. Lower cleaning plate; 67. Recovery chamber; 651. Cleaning brush; 71. Sliding plate; 72. Sliding block; 73. Return spring. DETAILED DESCRIPTION

[0034] Reference Figure 1-Figure 4 The present invention provides a technical solution: a building energy heat recovery device, comprising:

[0035] The recovery shell 1 has a ventilation chamber 2 fixed on one side;

[0036] The recovery pipe 3 is fixed on the side wall of the recovery shell 1 close to the ventilation chamber 2;

[0037] The discharge pipe 4 is fixed on the side wall of the recovery shell 1 away from the ventilation chamber 2;

[0038] The heat exchange tubes 5 are configured in multiple numbers, fixed in the ventilation chamber 2 and extending into the recovery shell 1;

[0039] A cleaning assembly 6 is installed in the recovery shell 1 and is sleeved with the plurality of heat exchange tubes 5;

[0040] The flow guide assembly 7 is slidably arranged on the cleaning assembly 6 .

[0041] In this embodiment, the heat exchange tube 5 is a U-shaped tube, the U-shaped bend of which is located at one end away from the ventilation chamber 2, and one end of the heat exchange tube 5 is an air inlet, and the other end is an air outlet.

[0042] As a preferred embodiment, a partition plate 21 is fixed in the middle position inside the ventilation chamber 2, and the partition plate separates the air inlet and the air outlet of the heat exchange tube 5, and divides the ventilation chamber 2 into an air inlet chamber 22 and an air outlet chamber 23.

[0043] As a preferred embodiment, the cleaning component 6 includes:

[0044] The fixing plate 61 is fixed in the recovery shell 1 and is close to the U-shaped bend of the heat exchange tube 5;

[0045] The guide shafts 62 are configured as a plurality and symmetrically fixed between the fixing plate 61 and the ventilation chamber 2;

[0046] The driving screws 63 are configured as two, symmetrically and rotatably arranged between the fixed plate 61 and the ventilation chamber 2;

[0047] There are two drive motors 64 , both fixed on the fixed plate 61 and corresponding to the two drive screws 63 ;

[0048] The upper cleaning plate 65 is configured as a plurality of plates, equidistantly slidably disposed on the plurality of guide shafts 62 and threadedly connected to one of the drive screws 63;

[0049] The lower cleaning plates 66 are configured as a plurality, the number of which is the same as that of the upper cleaning plates 65 , and are equidistantly slidably set on the plurality of guide shafts 62 , and are staggered with the upper cleaning plates 65 , and are threadedly connected to another of the drive screws 63 .

[0050] Among them, the adjustable distance between the upper cleaning plate 65 and the lower cleaning plate 66 can expand the airflow distribution range in the initial stage, and the S-shaped path can be used to extend the heat exchange time in the later stage to achieve staged heat recovery optimization.

[0051] As a preferred embodiment, a recovery bin 67 is provided between the fixed disk 61 and the recovery pipe 1 , and the drive motor 64 and the U-shaped bend of the heat exchange tube 5 are both located in the recovery bin 67 .

[0052] That is to say, the waste heat of the driving motor 64 is exchanged with the heat exchange tube 5 through the recovery bin 67, thereby reducing the energy consumption of the system itself and improving the heat recovery utilization rate.

[0053] As a preferred embodiment, the upper cleaning plate 65 and the lower cleaning plate 66 have the same structure and are both provided with a plurality of cleaning holes corresponding to the heat exchange tubes 7. A plurality of cleaning brushes 651 are fixed in the cleaning holes, and the plurality of cleaning brushes 651 are arranged in an alternating manner.

[0054] It should be noted that the upper cleaning plate 65 and the lower cleaning plate 66 adopt a reciprocating motion mode when performing cleaning operations, and combined with the staggered cleaning brushes 651, the surface of the heat exchange tube 5 is fully covered and cleaned to avoid dust accumulation and blockage.

[0055] As a preferred embodiment, the flow guide component 7 includes:

[0056] The sliding plates 71 are configured as a plurality of plates, and are respectively slidably arranged on the side where the upper cleaning plate 65 and the lower cleaning plate 66 are close to each other;

[0057] The sliding block 72 is configured as a plurality of sliding blocks, and is slidably disposed on a side of the sliding plate 71 close to the upper cleaning plate 65 , and a return spring 73 is disposed between the sliding plate 71 ;

[0058] A cleaning hole is also provided at the corresponding position of the sliding plate 71 and the heat exchange tube 5 , and a plurality of cleaning brushes 651 are fixed in the cleaning hole.

[0059] Among them, after cleaning, the cleaning brush 651 can be automatically cleaned through gas backflushing technology, reducing manual intervention, and a sealed space is formed when the sliding plate 71 is closed during backflushing to ensure that there is no leakage in the backflushing cleaning. When closed, the sliding plates 71 push each other. After the backflushing cleaning is completed, the sliding plate 71 is reset by the reset spring, so that the upper cleaning plate 65 and the lower cleaning plate 66 scrape the end surface of the sliding plate 71 to avoid dust accumulation falling on the end surface of the sliding plate 71, thereby improving the cleaning effect.

[0060] Specifically, when ventilation starts inside the building, the air inlet bin 22 in the ventilation bin 2 injects clean air into the heat exchange tube 5, and at the same time, the air inside the building enters the recovery shell 1 through the recovery pipe 3. At this time, the spacing between the multiple upper cleaning plates 65 and the lower cleaning plates 66 is reduced, so that the air in the building quickly fills the recovery shell 1, improving the heat exchange efficiency. When the clean air in the heat exchange tube 5 flows to the air outlet bin 23, the spacing between the multiple upper cleaning plates 65 and the lower cleaning plates 66 gradually expands until the recovery shell 1 is evenly separated. At this time, the air entering from the recovery pipe 3 enters in an S-shaped manner through the guide component 7. The heat exchange tube 5 is cleaned by the upper cleaning plate 65 and the lower cleaning plate 66.

[0061] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A building energy heat recovery device, characterized in that: include: A recovery shell (1) has a ventilation chamber (2) fixed on one side; A recovery pipe (3) is fixed on a side wall of the recovery shell (1) close to the ventilation chamber (2); A discharge pipe (4) is fixed on a side wall of the recovery shell (1) away from the ventilation chamber (2); The heat exchange tubes (5) are configured in a plurality, fixed in the ventilation chamber (2), and extend into the recovery shell (1); A cleaning assembly (6) is installed in the recovery shell (1) and is sleeved with the plurality of heat exchange tubes (5); The flow guide assembly (7) is slidably arranged on the cleaning assembly (6).

2. The building energy heat recovery device according to claim 1, characterized in that: The heat exchange tube (5) is a U-shaped tube, the U-shaped bend of which is located at one end away from the ventilation chamber (2), and one end of the heat exchange tube (5) is an air inlet, and the other end is an air outlet.

3. The building energy heat recovery device according to claim 2, characterized in that: A partition plate (21) is fixed in the middle of the ventilation chamber (2), and the partition plate separates the air inlet and the air outlet of the heat exchange tube (5), and divides the ventilation chamber (2) into an air inlet chamber (22) and an air outlet chamber (23).

4. The building energy heat recovery device according to claim 2, characterized in that: The cleaning component (6) comprises: A fixed plate (61) is fixed in the recovery shell (1) and is close to the U-shaped bend of the heat exchange tube (5); A plurality of guide shafts (62) are configured and symmetrically fixed between the fixed disk (61) and the ventilation chamber (2); The driving screws (63) are configured as two, symmetrically and rotationally arranged between the fixed disk (61) and the ventilation chamber (2); The driving motors (64) are configured as two, both of which are fixed on the fixed plate (61) and correspond to the two driving screws (63); An upper cleaning plate (65) is configured as a plurality of plates, equidistantly slidably disposed on a plurality of the guide shafts (62), and threadedly connected to one of the drive screws (63); The lower cleaning plates (66) are configured as a plurality of plates, the number of which is the same as that of the upper cleaning plates (65), and are equidistantly slidably arranged on the plurality of guide shafts (62), staggered with the upper cleaning plates (65), and threadedly connected to another of the drive screws (63).

5. The building energy heat recovery device according to claim 4, characterized in that: A recovery bin (67) is provided between the fixed disk (61) and the recovery pipe (1), and the U-shaped bends of the drive motor (64) and the heat exchange tube (5) are both located in the recovery bin (67).

6. The building energy heat recovery device according to claim 4, characterized in that: The upper cleaning plate (65) and the lower cleaning plate (66) have the same structure, and are both provided with a plurality of cleaning holes corresponding to the heat exchange tubes (7). A plurality of cleaning brushes (651) are fixed in the cleaning holes, and the plurality of cleaning brushes (651) are arranged in a staggered manner.

7. The building energy heat recovery device according to claim 6, characterized in that: The flow guide component (7) comprises: The sliding plates (71) are configured as a plurality of plates, each of which is slidably arranged on a side where the upper cleaning plate (65) and the lower cleaning plate (66) are close to each other; A plurality of sliding blocks (72) are provided, and are slidably arranged on a side of the sliding plate (71) close to the upper cleaning plate (65), and a return spring (73) is provided between the sliding plate (71); A cleaning hole is also provided at a position corresponding to the sliding plate (71) and the heat exchange tube (5), and a plurality of cleaning brushes (651) are fixed in the cleaning hole.

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