A new type of underground pipeline ventilation device

Abstract

The present invention relates to the technical field of pipeline ventilation, and discloses a novel underground pipeline ventilation device, including an air inlet pipe and an air outlet pipe, a plurality of evenly distributed connecting pipes are fixedly connected to the pipe wall on the opposite side of the air inlet pipe and the air outlet pipe, the two ends of the multiple connecting pipes are respectively connected to the air inlet pipe and the air outlet pipe, a plurality of U-shaped pipes are evenly fixedly connected to the pipe wall of the connecting pipe, the two vertical parts of the multiple U-shaped pipes are respectively connected to the connecting pipe, the upper and lower inner walls of the connecting pipe are provided with T-shaped grooves, and the two T-shaped grooves are connected to wind shielding mechanisms. The present invention can effectively slow down the air flow rate in the underground pipe, and the air in the underground pipe can be diverted to fully exchange heat with the soil around the underground pipe, thereby improving the heat exchange efficiency of the air.

Description

Technical Field

[0001] This invention relates to the field of duct ventilation technology, and in particular to a novel underground duct ventilation device. Background Technology

[0002] Building ventilation is divided into natural ventilation and mechanical ventilation. It refers to the direct or purified exhaust of stale indoor air to the outside, followed by the replenishment of fresh air to maintain indoor air quality that meets hygiene standards. Its purpose is to ensure the removal of indoor pollutants, maintain the thermal comfort of occupants, and meet their need for fresh air. Currently, in ordinary buildings such as school classrooms, office buildings, shopping malls, and residences, dedicated ventilation or fresh air systems are typically required to improve ventilation quality in enclosed spaces.

[0003] A search revealed Chinese patent CN208025735U, which discloses a buried duct ventilation device, including a blowing unit and various pipes. The blowing unit employs a high-flow, low-speed axial or centrifugal fan. The blowing unit is located in a shaded area of ​​a building or in the basement. During operation, it delivers outside air to the buried duct via a delivery pipe. Protective nets are installed at both ends of the delivery pipe, and the buried duct is deeply buried underground. This buried duct ventilation device has the following shortcomings: although it can cool the air during air delivery, the simple structure of the buried duct results in excessively fast airflow, leading to a low heat exchange rate. Furthermore, the buried duct can only absorb heat from the nearby soil for exchange; when the external temperature is high, it cannot sustain heat exchange to change the air temperature for an extended period. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art where the external air passes through too quickly, resulting in a low air heat exchange rate, and the buried pipe can only absorb heat from the nearby soil for exchange. When the external temperature is high, it cannot exchange heat for a long time to change the air temperature. Therefore, a new type of buried pipe ventilation device is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel underground duct ventilation device includes an air inlet pipe and an air outlet pipe. Multiple evenly distributed connecting pipes are fixedly connected to the pipe walls on opposite sides of the air inlet pipe and the air outlet pipe, respectively. The two ends of the multiple connecting pipes are connected to the air inlet pipe and the air outlet pipe, respectively. Multiple U-shaped pipes are evenly fixedly connected to the pipe walls of the connecting pipes. The two vertical ends of the multiple U-shaped pipes are connected to the connecting pipes, respectively. T-shaped grooves are opened on the inner walls of the upper and lower ends of the connecting pipes, and wind-blocking mechanisms are connected in both of the T-shaped grooves.

[0007] Preferably, the windbreak mechanism includes a T-shaped slider slidably connected in a T-shaped groove. One end of the T-shaped slider is rotatably connected to a transmission rod via a pin. The inner wall of the connecting pipe is rotatably connected to a baffle via a rotating shaft. The end of the transmission rod away from the T-shaped slider is rotatably connected to one side of the baffle via a pin. A spring is provided in the T-shaped groove. One end of the spring is fixedly connected to the T-shaped slider, and the other end of the spring is fixedly connected to one side of the T-shaped groove.

[0008] Preferably, the inner wall of the air outlet pipe is fixedly connected with a spiral blade, and a sealing plate is fixedly connected to the lower end of both the air inlet pipe and the air outlet pipe.

[0009] Preferably, multiple guide plates are fixedly connected to the inner walls of the opposite sides of the air inlet pipe at an angle, and a support rod is fixedly connected to the end of the multiple guide plates away from the inner wall of the air inlet pipe.

[0010] Preferably, a water collection tank is provided between the air inlet pipe and the air outlet pipe. Both sides of the water collection tank are fixedly connected to guide pipes through through holes. The ends of the two guide pipes away from the water collection tank are fixedly connected to the pipe walls of the air inlet pipe and the air outlet pipe, respectively. A drain pipe is fixedly connected to the lower right side of the water collection tank.

[0011] Preferably, multiple heat exchange fins are uniformly fixed to the opposite two sides of the horizontal section of the U-shaped tube.

[0012] Preferably, the water collection tank is equipped with a coil, and inverted L-shaped pipes are fixedly connected to both the left and right sides of the water collection tank. One end of the vertical part of each of the two L-shaped pipes passes through the sealing plate and extends into the air inlet pipe and air outlet pipe respectively. The two ends of the coil are fixedly connected to the horizontal ends of the two L-shaped pipes respectively.

[0013] Compared with the prior art, the present invention provides a novel underground duct ventilation device, which has the following beneficial effects:

[0014] 1. This novel underground duct ventilation device uses a baffle plate installed inside the connecting pipe. When the airflow velocity in the connecting pipe is high, the airflow pushes the baffle plate to move. The movement of the baffle plate drives the transmission rod to move the T-shaped slider. The movement of the T-shaped slider compresses the spring, thereby effectively slowing down the airflow velocity in the underground pipe and improving the air heat exchange efficiency. When the airflow velocity in the underground pipe is obstructed, the air flows through multiple U-shaped tubes, thereby diverting the air in the underground pipe and fully exchanging heat with the soil around the underground pipe. When the external temperature is high, heat exchange can be carried out for a long time, changing the temperature of the air supplied to the room.

[0015] 2. This new type of buried duct ventilation device uses spiral blades installed in the outlet duct. When the airflow passes through the spiral blades, the airflow is affected by the structure of the spiral blades to generate vortex flow, which is conducive to heat exchange when the airflow is discharged. The guide plate installed in the inlet duct can come into contact with the air when the air is discharged, so that the water vapor contained in the airflow is cooled and liquefied into water droplets, which are collected in the water collection tank.

[0016] The parts of this device not described herein are the same as or can be implemented using existing technologies. This invention can effectively slow down the air flow rate in the buried pipe, and the air in the buried pipe can be diverted to fully exchange heat with the soil around the buried pipe, thereby improving the heat exchange efficiency of the air. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal structure of the connecting pipe in a novel underground pipeline ventilation device proposed in this invention.

[0018] Figure 2 This is a schematic diagram of the structure of a novel underground pipeline ventilation device proposed in this invention;

[0019] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the inner wall structure of the water collection tank in a novel underground pipeline ventilation device proposed in this invention.

[0021] In the diagram: 1 connecting pipe, 2 U-shaped pipe, 3 heat exchange fins, 4 baffle, 5 spiral blades, 6 air inlet pipe, 7 sealing plate, 8 drain pipe, 9 air outlet pipe, 10 support rod, 11 guide plate, 12 water collection tank, 13 T-shaped slide, 14 transmission rod, 15 spring, 16 T-shaped slider. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Reference Figure 1-4A novel underground duct ventilation device includes an inlet pipe 6 and an outlet pipe 9. Multiple evenly distributed connecting pipes 1 are fixedly connected to the opposite side walls of the inlet pipe 6 and the outlet pipe 9. The two ends of the connecting pipes 1 are respectively connected to the inlet pipe 6 and the outlet pipe 9. Multiple U-shaped pipes 2 are evenly fixedly connected to the walls of the connecting pipes 1. The two vertical ends of the U-shaped pipes 2 are respectively connected to the connecting pipes 1. T-shaped grooves 13 are formed on the inner walls of both the upper and lower ends of the connecting pipes 1. Wind-blocking mechanisms are connected to both T-shaped grooves 13. The wind-blocking mechanisms include T-shaped... Slider 16, one end of T-shaped slider 16 is rotatably connected to transmission rod 14 via a shaft pin, the inner wall of connecting pipe 1 is rotatably connected to baffle 4 via a rotating shaft, the end of transmission rod 14 away from T-shaped slider 16 is rotatably connected to one side of baffle 4 via a pin, spring 15 is provided in T-shaped slide groove 13, one end of spring 15 is fixedly connected to T-shaped slider 16, the other end of spring 15 is fixedly connected to one side of T-shaped slide groove 13, spiral blades 5 are fixedly connected to the inner wall of air outlet pipe 9, sealing plates 7 are fixedly connected to the lower ends of air inlet pipe 6 and air outlet pipe 9, which facilitates the flow of condensed water into water collection tank 12, air inlet... Multiple guide plates 11 are fixedly connected to the inner walls of opposite sides of the pipe 6 at an angle. A support rod 10 is fixedly connected to the end of each guide plate 11 away from the inner wall of the inlet pipe 6. When water vapor in the airflow encounters the cooler guide plates, it liquefies into water droplets and collects in the water collection tank 12. A water collection tank 12 is located between the inlet pipe 6 and the outlet pipe 9. Guide pipes are fixedly connected to both sides of the water collection tank 12 through through holes. The ends of the two guide pipes away from the water collection tank 12 are fixedly connected to the pipe walls of the inlet pipe 6 and the outlet pipe 9, respectively. A drain pipe 8 is fixedly connected to the lower right side of the water collection tank 12, extending to the water surface. To drain the condensate from the water collection tank 12, multiple heat exchange fins 3 are evenly fixed to the horizontal sides of the U-shaped tube 2. Both the heat exchange fins 3 and the U-shaped tube 2 are made of aluminum, utilizing the excellent thermal conductivity of aluminum for heat exchange. The water collection tank 12 is equipped with a coil 17. Inverted L-shaped tubes are fixedly connected to both sides of the water collection tank 12. One end of the vertical part of each of the two L-shaped tubes passes through the sealing plate 7 and extends into the air inlet pipe 6 and the air outlet pipe 9, respectively. The two ends of the coil 17 are fixedly connected to the horizontal ends of the two L-shaped tubes, making full use of the condensate to absorb the heat contained in the air in the coil 17.

[0025] In this invention, when the airflow velocity in the connecting pipe 1 is high, the airflow pushes the baffle 4 to move. The movement of the baffle 4 drives the transmission rod 14 to move the T-shaped slider 16. The movement of the T-shaped slider 16 compresses the spring 15, thereby effectively slowing down the airflow velocity in the buried pipe and improving the air heat exchange efficiency. When the airflow velocity in the buried pipe is obstructed, the air flows through multiple U-shaped pipes 2, thereby diverting the air in the buried pipe and fully exchanging heat with the soil around the buried pipe. When the external temperature is high, heat exchange can be carried out for a long time, changing the temperature of the air supplied to the room. When the airflow passes through the spiral blade 5, the airflow is affected by the structure of the spiral blade 5 to generate cyclone flow, which is conducive to heat exchange when the airflow is out. The guide plate 11 set in the air inlet pipe 6 can contact the air when the air is inlet, so that the water vapor contained in the airflow liquefies into water droplets when it is cooled and is concentrated in the water collection tank 12.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A novel underground pipe ventilation device, comprising an air inlet pipe (6) and an air outlet pipe (9), characterized in that: A plurality of evenly distributed connecting tubes (1) are fixedly connected to the tube wall on one side opposite to the air inlet tube (6) and the air outlet tube (9), and the two end tube openings of the plurality of connecting tubes (1) are respectively connected to the air inlet tube (6) and the air outlet tube (9), a plurality of U-shaped tubes (2) are evenly fixedly connected to the tube wall of the connecting tube (1), and the two vertical tube openings of the plurality of U-shaped tubes (2) are respectively connected to the connecting tube (1), and the inner walls of the upper and lower ends of the connecting tube (1) are both provided with T-shaped slide grooves (13), and the two T-shaped slide grooves (13) are both connected to wind shielding mechanisms; The wind shielding mechanism comprises a T-shaped slider (16) slidably connected in the T-shaped slide groove (13); one end of the T-shaped slider (16) is rotatably connected to a transmission rod (14) via an axle pin; the inner wall of the connecting tube (1) is rotatably connected to a baffle (4) via a rotating shaft; one end of the transmission rod (14) away from the T-shaped slider (16) is rotatably connected to one side of the baffle (4) via a pin; a spring (15) is provided in the T-shaped slide groove (13); one end of the spring (15) is fixedly connected to the T-shaped slider (16); and the other end of the spring (15) is fixedly connected to one side of the T-shaped slide groove (13); The inner wall of the air outlet pipe (9) is fixedly connected with a spiral blade (5), and the lower end openings of the air inlet pipe (6) and the air outlet pipe (9) are fixedly connected with a sealing plate (7).

2. A novel underground pipeline ventilation device according to claim 1, characterized in that: The inner walls on both sides of the air inlet pipe (6) opposite to each other are both obliquely and fixedly connected with a plurality of guide plates (11), and one end of the plurality of guide plates (11) away from the inner wall of the air inlet pipe (6) is commonly and fixedly connected with a support rod (10).

3. A novel underground pipeline ventilation device according to claim 1, characterized in that: A water collecting box (12) is provided between the air inlet pipe (6) and the air outlet pipe (9), and flow guide pipes are fixedly connected to the left and right sides of the water collecting box (12) via through holes, and one end of the two flow guide pipes away from the water collecting box (12) is fixedly connected to the pipe wall of the air inlet pipe (6) and the air outlet pipe (9), respectively, and a drainage pipe (8) is fixedly connected to the lower side of the right end of the water collecting box (12).

4. A novel underground pipeline ventilation device according to claim 1, characterized in that: A plurality of heat exchange fins (3) are evenly fixedly connected to the tube walls on both sides opposite to each other at the horizontal portion of the U-shaped tube (2).

5. A novel underground pipeline ventilation device according to claim 3, characterized in that: The water collecting box (12) is provided with a coil (17), and the left and right sides of the water collecting box (12) are fixedly connected with inverted L-shaped tubes, and one end of the vertical parts of the two L-shaped tubes passes through the sealing plate (7) and extends into the air inlet pipe (6) and the air outlet pipe (9) respectively, and the two end pipe openings of the coil (17) are fixedly connected to the horizontal pipe openings of the two L-shaped tubes respectively.

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