Negative pressure gas circulation device for septic tank

Abstract

The utility model provides a septic tank negative pressure gas circulation device, including rotating head, arc support, wind collection cylinder, fixed link and empennage, the rotating head is rotatingly installed at the top of the gas outlet pipe of septic tank, the tail end of the gas outlet pipe is arranged at the open position that has a certain height from the ground, the both ends of rotating head are communicated with each other, the tail end of rotating head is equipped with the wind collection cylinder, fixed link and empennage. The two ends of the arc-shaped support are fixedly connected to end openings in the two sides of the rotating head and are vertically arranged, the air collecting barrel is fixedly connected to the upper end of the top of the rotating head and is provided with a wide-opening section and a thin-opening section, and the thin-opening section is transversely arranged in the middle of the arc-shaped support and used for taking air in the air outlet pipe away from the air outlet pipe through airflow of the thin-opening section. The fixing rod is fixed on the air collecting barrel, and the tail wing is fixed on the fixing rod and is vertically arranged. By ingeniously utilizing the negative pressure generated by the chimney effect, the circulating speed of gas in the septic tank is obviously accelerated, so that the concentration of odor is effectively diluted.

Description

Technical Field

[0001] This utility model relates to the field of septic tank exhaust technology, and in particular to a septic tank negative pressure gas circulation device. Background Technology

[0002] Currently, many factory septic tanks have their vents located in the green areas of plazas, with the vents approximately 1 meter above the ground. This design causes odors emitted from the vents to directly spread onto the plaza, severely impacting the quality of the surrounding environment and the living experience of residents. Because these vents are positioned low, the emitted gases cannot be effectively diluted or rapidly dispersed, making the odor problem particularly pronounced in densely populated areas or places with poor air circulation. Furthermore, traditional septic tank designs lack effective measures to accelerate the circulation of internal gases, which not only exacerbates odor accumulation but may also pose a potential threat to public health. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a negative pressure gas circulation device for septic tanks. To achieve the above objectives, this utility model adopts the following technical solution:

[0004] A negative pressure gas circulation device for a septic tank includes a rotating head, an arc-shaped support, an air collecting duct, a fixing rod, and a tail fin. The rotating head is rotatably mounted on the top of the septic tank's outlet pipe. The end of the outlet pipe is positioned in an open area at a certain height above the ground. The two ends of the rotating head are connected. The two ends of the arc-shaped support are fixedly connected to the two side ports of the rotating head and are vertically arranged. The air collecting duct is fixedly connected to the top of the rotating head and has a wide opening section and a narrow opening section. The narrow opening section is horizontally arranged in the middle of the arc-shaped support to carry the air in the outlet pipe away from the outlet pipe through the airflow in the narrow opening section. The fixing rod is fixed to the air collecting duct, and the tail fin is fixed to the fixing rod and is vertically arranged.

[0005] Furthermore, the center of gravity of the air collecting duct, the fixed rod, and the tail fin is located on the central axis of the rotating head.

[0006] Furthermore, the upper end of the wide-mouth section of the air collection duct protrudes beyond its lower end.

[0007] Furthermore, the narrow section of the air collecting duct is designed in the shape of an eagle's beak, with its opening located above the top of the rotating head.

[0008] Furthermore, an annular platform is fixedly connected to the outer wall of the air outlet pipe, and a number of ball bearings rotatably connected to the annular platform are embedded in the annular platform, the ball bearings being arranged in a circular array.

[0009] Furthermore, the tail fin is detachably connected to the end of the fixing rod via a thread.

[0010] Furthermore, a rust-proof umbrella-shaped structure is fixedly connected to the top of the arc-shaped bracket.

[0011] Furthermore, the wide-mouth section of the air collection duct is equipped with a removable filter screen on its inner wall to filter large particulate impurities in the air.

[0012] Furthermore, the tail fin surface is coated with a reflective coating.

[0013] Furthermore, the rotating head and the air collecting duct are made of stainless steel.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By cleverly utilizing the negative pressure generated by the chimney effect, the circulation speed of gas in the septic tank is significantly accelerated, thereby effectively diluting the concentration of odor.

[0016] 2. The air collection duct in this device is specially designed with a wide opening section and a narrow opening section, which can more efficiently guide and accelerate the flow of air, and quickly carry the waste gas in the septic tank away from the exhaust pipe;

[0017] 3. The device is installed in an open space at a certain height, so that the natural air convection at high altitude can further disperse the odor and reduce its accumulation in the low-altitude area.

[0018] 4. The tail fin design increases the directional stability of the device, ensuring optimal operation even under varying wind speeds. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model.

[0021] In the above attached figures: 1. Rotating head; 2. Support; 3. Air collection tube; 4. Fixing rod; 5. Tail fin; 6. Air outlet pipe; 7. Wide opening section; 8. Narrow opening section; 9. Annular platform; 10. Ball bearings; 11. Umbrella-shaped structure. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] This utility model provides, for example Figure 1The septic tank negative pressure gas circulation device shown includes a rotating head 1, an arc-shaped support 2, an air collection duct 3, a fixing rod 4, and a tail wing 5. The rotating head 1 is rotatably installed at the top of the vent pipe 6 of the septic tank. The end of the vent pipe 6 is set in an open space at a certain height above the ground. This height can be achieved by erecting a frame or using green trees to elevate the vent pipe 6 to a height of 4-7m. The two ends of the rotating head 1 are connected. The two ends of the arc-shaped support 2 are fixedly connected to the two side ports of the rotating head 1 and are set vertically. The air collection duct 3 is fixedly connected to the top end of the rotating head 1 and is provided with a wide opening section 7 and a narrow opening section 8. The narrow opening section 8 is horizontally set in the middle of the arc-shaped support 2 to carry the air in the vent pipe 6 away from the vent pipe 6 through the airflow of the narrow opening section 8. The fixing rod 4 is fixed to the air collection duct 3, and the tail wing 5 is fixed to the fixing rod 4 and is set vertically.

[0024] The working principle is as follows: The rotating head 1 is installed at the top of the septic tank outlet pipe 6 and is allowed to rotate freely, enabling the arc-shaped support 2 and the air collection duct 3 to adjust their positions according to the wind direction. The air collection duct 3 has a wide-mouth section 7 and a narrow-mouth section 8. The wide-mouth section 7 is used to capture more airflow, while the narrow-mouth section 8 is horizontally positioned in the middle of the arc-shaped support 2. The high-speed airflow generated by the narrow-mouth section 8 creates negative pressure, quickly carrying the exhaust gas from the septic tank away from the outlet pipe 6. The fixing rod 4 and the tail fin 5 ensure the entire device is stably erected, and the direction is adjusted by the tail fin 5 to maximize the efficiency of wind power utilization. This design utilizes natural wind power to accelerate gas circulation within the septic tank, while simultaneously diluting and dispersing odors through high-altitude air convection, thereby significantly reducing environmental pollution.

[0025] To reduce the resistance caused by the device swaying in the wind, the centers of gravity of the air collecting duct 3, the fixing rod 4, and the tail fin 5 are located on the central axis of the rotating head 1. This facilitates stable rotation of the device.

[0026] To prevent dust from falling into the air collection duct 3 and affecting the center of gravity of the entire device, such as Figure 1 As shown, the upper end of the wide-mouth section 7 of the air collecting duct 3 protrudes beyond its lower end.

[0027] To prevent dust from falling into the air collection duct 3 and affecting the center of gravity of the entire device, such as Figure 1 As shown, the narrow section 8 of the air collecting duct 3 is designed in the shape of an eagle's beak, with its opening located above the top of the rotating head 1.

[0028] To reduce the resistance to the rotation of rotating head 1 and facilitate stable operation of the device, such as Figure 1 As shown, an annular platform 9 is fixedly connected to the outer wall of the air outlet pipe 6. A plurality of ball bearings 10 are embedded in the annular platform 9 and are rotatably connected to the annular platform 9. The ball bearings 10 are arranged in a circular array. The bottom end of the rotating head 1 rests on the ball bearings 10 and rotates on the ball bearings 10.

[0029] To facilitate the replacement of the broken tail fin 5, such as Figure 1 As shown, the tail fin 5 is detachably connected to the end of the fixing rod 4 via a thread.

[0030] To prevent debris from falling into the vent pipe 6 and clogging it, such as... Figure 1 As shown, a rust-proof umbrella-shaped structure 11 is fixedly connected to the top of the arc-shaped bracket 2. The rust-proof umbrella-shaped structure 11 is made of stainless steel, which improves durability while blocking debris.

[0031] To prevent impurities from entering the narrow section and affecting airflow, the inner wall of the wide section of the air collecting duct is equipped with a removable filter screen to filter large particulate impurities in the air.

[0032] To improve the visibility of the device at night or in low-light conditions and to avoid accidental collisions, the tail fin surface is coated with a reflective coating.

[0033] To improve durability and reduce costs, the rotating head and air collection duct are made of stainless steel.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A negative pressure gas circulation device for septic tanks, characterized in that, The device includes a rotating head, an arc-shaped support, an air collection duct, a fixing rod, and a tail fin. The rotating head is rotatably mounted on the top of the vent pipe of the septic tank. The end of the vent pipe is located in an open area at a certain height above the ground. The two ends of the rotating head are connected. The two ends of the arc-shaped support are fixedly connected to the two side ports of the rotating head and are vertically arranged. The air collection duct is fixedly connected to the top of the rotating head and has a wide opening section and a narrow opening section. The narrow opening section is horizontally arranged in the middle of the arc-shaped support to carry the air in the vent pipe away from the vent pipe through the airflow of the narrow opening section. The fixing rod is fixed to the air collection duct, and the tail fin is fixed to the fixing rod and is vertically arranged.

2. The septic tank negative pressure gas circulation device according to claim 1, characterized in that: The center of gravity of the air collecting duct, the fixed rod, and the tail fin is located on the central axis of the rotating head.

3. The septic tank negative pressure gas circulation device according to claim 2, characterized in that: The upper end of the wide-mouth section of the air collection duct protrudes beyond its lower end.

4. The septic tank negative pressure gas circulation device according to claim 3, characterized in that: The narrow section of the air collecting duct is designed in the shape of an eagle's beak, with its opening located above the top of the rotating head.

5. The septic tank negative pressure gas circulation device according to claim 1, characterized in that: An annular platform is fixedly connected to the outer wall of the air outlet pipe. Several ball bearings are embedded in the annular platform and are rotatably connected to the annular platform. The ball bearings are arranged in a circular array.

6. The septic tank negative pressure gas circulation device according to claim 1, characterized in that: The tail fin is detachably connected to the end of the fixed rod via a thread.

7. The septic tank negative pressure gas circulation device according to claim 1, characterized in that: The top of the arc-shaped bracket is fixedly connected to a rust-proof umbrella-shaped structure.

8. The septic tank negative pressure gas circulation device according to claim 1, characterized in that: The wide-mouth section of the air collection duct is equipped with a removable filter screen on its inner wall to filter large particulate impurities in the air.

9. The septic tank negative pressure gas circulation device according to claim 1, characterized in that: The tail fin is coated with a reflective coating.

10. A septic tank negative pressure gas circulation device according to claim 1, characterized in that: The rotating head and air collection duct are made of stainless steel.

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