Heat pipe heat recovery device for fresh air handling unit

Abstract

The utility model relates to the technical field of heat recovery of fresh air handling units, in particular to a heat pipe heat recovery device for a fresh air handling unit, and solves the problem that the heat pipe heat recovery device in the prior art is not easy to disassemble, assemble and protect, so that the maintenance efficiency of a heat pipe is low. A heat pipe heat recovery device for a fresh air handling unit comprises a fresh air handling unit body, a containing groove is formed in the surface of the fresh air handling unit body, a heat recovery frame is slidably connected to the interior of the containing groove, a fixing mechanism is arranged between the heat recovery frame and the containing groove, a partition plate is fixedly connected to the interior of the heat recovery frame, and a heat recovery pipe is fixedly connected to the interior of the partition plate. Two middle plates are fixedly connected into the fresh air handling unit body, and the partition plate is located between the two middle plates. When the heat recovery device needs to be repaired or maintained, the fixing mechanism is opened, and the heat pipe can be conveniently taken out of the fresh air handling unit to be repaired and maintained.

Description

Technical Field

[0001] This utility model relates to the field of heat recovery technology for fresh air handling units, and in particular to a heat pipe heat recovery device for fresh air handling units. Background Technology

[0002] A fresh air handling unit is an electromechanical device that improves ventilation in enclosed spaces by filtering, regulating temperature and humidity, and recovering energy to deliver purified air into the room while expelling stale air. During operation, a fresh air handling unit first draws in fresh outdoor air via a fan. The air then undergoes processes such as dust removal, dehumidification (or humidification), and cooling (or heating) before being delivered back into the room to replace the existing indoor air. Some fresh air handling units include a heat recovery section, which recovers heat from the exhaust air to pre-cool or preheat the fresh air, achieving energy recovery and reducing energy consumption. This allows for a continuous supply of treated fresh air to the room, increasing oxygen levels and improving indoor air quality. By configuring filters of different grades, it effectively filters out pollutants such as dust, pollen, and bacteria, improving indoor air cleanliness. Heat pipe heat recovery is a highly efficient heat recovery technology. A heat pipe is a heat transfer element with high thermal conductivity that utilizes the phase change of the working fluid to transfer heat.

[0003] In existing technologies, fresh air handling units are important equipment for ensuring indoor air quality. When using fresh air handling units to replace indoor air, heat pipe heat recovery can be used to recover heat from the fresh air handling units, which can better utilize heat and reduce energy consumption.

[0004] However, existing heat pipe heat recovery devices are not easy to disassemble for repair and protection when problems occur after use. The installation and maintenance of heat pipe heat recovery devices are difficult, resulting in low efficiency in daily maintenance or repair when problems occur. Utility Model Content

[0005] The purpose of this invention is to provide a heat pipe heat recovery device for fresh air handling units, which solves the problem that the heat pipe heat recovery device in the prior art is not easy to disassemble and protect, resulting in low efficiency of heat pipe maintenance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A heat pipe heat recovery device for a fresh air handling unit includes a fresh air handling unit body, a receiving groove is formed on the surface of the fresh air handling unit body, a heat recovery frame is slidably connected inside the receiving groove, a fixing mechanism is provided between the heat recovery frame and the receiving groove, a partition plate is fixedly connected inside the heat recovery frame, a heat recovery pipe is fixedly connected inside the partition plate, and two intermediate plates are fixedly connected inside the fresh air handling unit body, with the partition plate located between the two intermediate plates.

[0008] Preferably, the fixing mechanism includes two L-shaped fixing rods fixedly connected to both sides of the fresh air unit body, and a force-bearing rod rotatably connected to both sides of the heat recovery frame. Two anti-movement grooves are opened on the surface of the force-bearing rod, and an anti-movement rod is inserted through the surface of the fixing rod. One end of the anti-movement rod is located inside the adjacent anti-movement groove.

[0009] Preferably, one end of the anti-movement rod is elastically connected to the surface of the fixed rod by a compression spring, and an extension rod is fixedly connected to the surface of the force-bearing rod.

[0010] Preferably, the surface of the fresh air unit body has two quadrilateral sealing rings that slide together, the top of the sealing rings is fixedly connected to a collar, and a screw is threaded between two adjacent collars.

[0011] Preferably, a baffle plate is fixedly connected to the bottom of the middle plate, and the top of the baffle plate is attached to the bottom of the partition plate.

[0012] Preferably, the top and bottom of the heat recovery frame are provided with L-shaped hook grooves.

[0013] This utility model has the following beneficial effects:

[0014] When using the fresh air unit, insert the heat recovery frame into the receiving tank. At this time, the heat recovery pipe inside the heat recovery frame can recover heat to ensure the normal operation of the fresh air unit. When the heat recovery device needs to be repaired or maintained, open the fixing mechanism to make it easy to take out the heat pipe from the fresh air unit for repair and maintenance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 Side view of the central fixing mechanism;

[0018] Figure 3 for Figure 1 A side view of the fresh air handling unit after the fixing mechanism has been removed;

[0019] Figure 4 for Figure 2 Side view of the load-bearing member;

[0020] Figure 5 for Figure 1 A schematic diagram of the interior of the Zhongxin air handling unit.

[0021] In the diagram: 1. Fresh air unit body; 2. Receiving tank; 3. Heat recovery frame; 4. Fixing mechanism; 5. Partition plate; 6. Heat recovery pipe; 7. Intermediate plate; 8. Baffle plate; 9. Hook groove; 401. Fixing rod; 402. Force-bearing rod; 403. Anti-movement groove; 404. Anti-movement rod; 405. Compression spring; 406. Sealing ring; 407. Collar; 408. Screw; 409. Extension rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Reference Figure 1-5A heat pipe heat recovery device for a fresh air handling unit includes a fresh air handling unit body 1. The fresh air handling unit is an electromechanical device that improves ventilation in enclosed spaces by filtering, regulating temperature and humidity, and recovering energy to deliver purified air into the room while simultaneously exhausting stale air. During air purification, the fresh air handling unit is activated to exchange indoor and outdoor air. During this air exchange, the heat recovery mechanism recovers the heat from the exhaust air to pre-cool or preheat the fresh air, achieving energy recovery and utilization, reducing energy consumption, and making it more convenient to use. The surface of the fresh air handling unit body 1 has a ductwork... When maintenance and inspection are required, the heat recovery frame 3 and the heat recovery pipe 6 inside the heat recovery frame 3 can be easily removed from the heat recovery tank 2. This facilitates the replacement, maintenance, and inspection of the main heat recovery structure. The heat recovery frame 3 is slidably connected inside the heat recovery tank 2. The heat recovery frame 3 is a structure that fills the heat recovery tank 2. When the heat recovery pipe 6 is placed inside the heat recovery tank 2 to perform heat recovery on the fresh air unit body 1, the heat recovery frame 3 can block the heat recovery tank 2 to prevent air leakage and ensure normal airflow into and out of the room. A fixing mechanism 4 is provided between the heat recovery frame 3 and the receiving tank 2. After the heat recovery pipe 6 is sent into the receiving tank 2 through the heat recovery frame 3, the fixing mechanism 4 fixes the heat recovery frame 3 to the fresh air unit body 1. This prevents the heat recovery frame 3 from misaligning and detaching from the receiving tank 2 during use, thus preventing leakage into the fresh air unit body 1. This ensures that the heat recovery pipe 6 can properly recover and utilize heat. A partition plate 5 is fixedly connected inside the heat recovery frame 3. The partition plate 5 can separate the upper and lower layers inside the receiving tank 2, separating the two channels for air inlet and outlet, facilitating heat recovery. The heat recovery pipe 6 recovers heat. The heat recovery pipe 6 is fixedly connected inside the partition plate 5. The heat recovery pipe 6 exchanges heat in the air in the air intake pipe and the air outlet pipe, thereby facilitating heat recovery and pre-cooling or preheating of fresh air to achieve energy recovery and utilization and reduce energy consumption. The fresh air unit body 1 has two intermediate plates 7 fixedly connected inside. The partition plate 5 is located between the two intermediate plates 7. The intermediate plates 7 are structures that separate the air intake pipe and the air outlet pipe. When in use, the partition plate 5 can fill the space between the intermediate plates 7 to ensure that the air intake pipe and the air outlet pipe do not cross-flow.

[0024] Furthermore, the fixing mechanism 4 includes two L-shaped fixing rods 401 fixedly connected to both sides of the fresh air unit body 1. Force-bearing rods 402 are rotatably connected to both sides of the heat recovery frame 3. Two anti-movement grooves 403 are formed on the surface of the force-bearing rods 402. Anti-movement rods 404 pass through the surface of the fixing rods 401, with one end of each anti-movement rod 404 located inside the adjacent anti-movement groove 403. When the heat recovery frame 3 needs to be installed inside the receiving groove 2, it can be placed into the receiving groove 2 from top to bottom. During this process, the force-bearing rods 402 need to be rotated. 02. The force-bearing rod 402 is made to be in a vertical state. After the heat recovery frame 3 is placed into the receiving groove 2, the force-bearing rod 402 is rotated to make it horizontal. During this process, the anti-movement rod 404 needs to be pulled outward so that the anti-movement groove 403 on the force-bearing rod 402 can rotate to the designated position. Then, the anti-movement rod 404 is pushed so that one end of the anti-movement rod 404 enters the adjacent anti-movement groove 403, thereby fixing the position of the force-bearing rod 402 and fixing the heat recovery frame 3 in the receiving groove 2 to ensure the normal operation of heat recovery.

[0025] Furthermore, one end of the anti-movement rod 404 is elastically connected to the surface of the fixed rod 401 by a compression spring 405, and an extension rod 409 is fixedly connected to the surface of the force-bearing rod 402. When it is necessary to move the heat recovery frame 3, the extension rod 409 can be used to easily drive the heat recovery frame 3 to move up and down through the force-bearing rod 402. The anti-movement rod 404 is guaranteed to have a force towards the fixed rod 401 by the compression spring 405, so that the anti-movement rod 404 will not easily detach from the anti-movement groove 403, causing the force-bearing rod 402 to rotate and affecting the stability of the heat recovery frame 3.

[0026] Furthermore, two quadrilateral sealing rings 406 are slidably connected to the surface of the fresh air unit body 1. A collar 407 is fixedly connected to the top of the sealing ring 406, and a screw 408 is threaded between two adjacent collars 407. After the heat recovery frame 3 is sent into the receiving groove 2, the two sealing rings 406 are moved so that the sealing rings 406 block the gap between the heat recovery frame 3 and the receiving groove 2, thereby improving the sealing performance and ensuring the stability of air circulation and exchange. When the sealing rings 406 are moved to a suitable position, the screw 408 is inserted into the adjacent collar 407 to fix the position of the two sealing rings 406. The position of the sealing rings 406 will not change without external force.

[0027] Furthermore, a baffle plate 8 is fixedly connected to the bottom of the intermediate plate 7. The top of the baffle plate 8 is attached to the bottom of the partition plate 5. When the partition plate 5 is needed to fill the space between the two intermediate plates 7, the gap between the partition plate 5 and the intermediate plate 7 can be blocked by the baffle plate 8. After the baffle plate 8 blocks the gap between the partition plate 5 and the intermediate plate 7, the air exchange between the air inlet and outlet can be reduced, ensuring the normal operation of air exchange.

[0028] Furthermore, L-shaped hook grooves 9 are provided at the top and bottom of the heat recovery frame 3. When it is necessary to remove the heat recovery frame 3 from the receiving groove 2, the heat recovery frame 3 can be easily moved upward through the hook grooves 9, so that the heat recovery frame 3 can be easily removed from the receiving groove 2.

[0029] In summary:

[0030] During the use of the fresh air unit body 1, the heat recovery device recovers the heat and cold from the exhaust air to pre-cool or preheat the fresh air, achieving energy recovery and utilization and reducing energy consumption. When using the heat recovery pipe 6 for heat recovery, the heat recovery pipe 6 can be fixed inside the heat recovery frame 3 by the partition plate 5. Then, the heat recovery frame 3 is sent into the receiving groove 2 by the extension rod 409. During this process, the partition plate 5 fills the space between the two intermediate plates 7. Then, the gap between the intermediate plate 7 and the partition plate 5 is blocked by the baffle plate 8. After that, the force rod 402 is rotated. Before the force rod 402 rotates, the anti-moving rod 404 is pulled outward. The rotation of the force rod 402 makes the anti-moving groove 403 approach the anti-moving rod 404. Then, the anti-moving rod 404 is released. The anti-moving rod 404 is reset by the elastic force of the compression spring 405, so that the anti-moving rod 404 enters the interior of the anti-moving groove 403, thereby fixing the force rod 402 and the fixing rod 401. This allows the heat recovery frame 3 to be fixed to the fresh air unit body 1. Then, the sealing ring 406 is moved so that the two sealing rings 406 block the gap between the receiving groove 2 and the heat recovery frame 3. Then, the screw 408 is rotated to fix the two collars 407, so that the sealing ring 406 is also fixed. Then, the fresh air unit body 1 uses the heat recovery pipe 6 to recover heat from the incoming and outgoing air until maintenance or repair is required. Then, the screw 408 is rotated to expose the heat recovery frame 3. Then, the anti-movement rod 404 is pulled to disengage the anti-movement rod 404 from the anti-movement groove 403. Then, the heat recovery frame 3 is taken out from the inside of the receiving groove 2 through the cooperation of the hook groove 9 and the extension rod 409. Thus, the heat recovery pipe 6 is taken out of the fresh air unit for maintenance and repair, and then put back for use. Through the above structure, when the heat pipe is used to recover heat from the fresh air unit, the heat recovery pipe 6 can be easily removed from the inside of the fresh air unit body 1, which facilitates the maintenance and repair of the heat recovery pipe 6.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat pipe heat recovery device for a fresh air handling unit, comprising a fresh air handling unit body (1), characterized in that, The surface of the fresh air unit body (1) is provided with a receiving groove (2), and a heat recovery frame (3) is slidably connected inside the receiving groove (2). A fixing mechanism (4) is provided between the heat recovery frame (3) and the receiving groove (2). A partition plate (5) is fixedly connected inside the heat recovery frame (3). A heat recovery pipe (6) is fixedly connected inside the partition plate (5). Two intermediate plates (7) are fixedly connected inside the fresh air unit body (1), and the partition plate (5) is located between the two intermediate plates (7).

2. The heat pipe heat recovery device for a fresh air handling unit according to claim 1, characterized in that, The fixing mechanism (4) includes two L-shaped fixing rods (401) fixedly connected to both sides of the fresh air unit body (1). Both sides of the heat recovery frame (3) are rotatably connected to force rods (402). Two anti-movement grooves (403) are opened on the surface of the force rods (402). An anti-movement rod (404) is passed through the surface of the fixing rods (401). One end of the anti-movement rod (404) is located inside the adjacent anti-movement groove (403).

3. The heat pipe heat recovery device for a fresh air handling unit according to claim 2, characterized in that, One end of the anti-movement rod (404) is elastically connected to the surface of the fixed rod (401) by a compression spring (405), and an extension rod (409) is fixedly connected to the surface of the force-bearing rod (402).

4. The heat pipe heat recovery device for a fresh air handling unit according to claim 1, characterized in that, The surface of the fresh air unit body (1) is slidably connected with two quadrilateral sealing rings (406), and a collar (407) is fixedly connected to the top of the sealing ring (406). A screw (408) is threaded between two adjacent collars (407).

5. A heat pipe heat recovery device for a fresh air handling unit according to claim 1, characterized in that, A baffle plate (8) is fixedly connected to the bottom of the intermediate plate (7), and the top of the baffle plate (8) is attached to the bottom of the partition plate (5).

6. The heat pipe heat recovery device for a fresh air handling unit according to claim 1, characterized in that, The heat recovery frame (3) has L-shaped hook grooves (9) at both the top and bottom.

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