General type semi-open facility pollution gas collecting device

Abstract

The utility model provides a general type semi-open facility pollution gas collecting device, which comprises a conical cover body, a gas collecting device, a gas collecting device, a gas collecting device, a gas collecting device, a gas collecting device, a gas collecting device, a gas collecting device, a gas collecting device and a gas collecting device, and is characterized in that the conical cover body is formed by a framework and a fiber membrane; the gas collecting opening is formed in the top end of the conical cover body; the air flow adjusting system comprises an air flow control valve and a negative pressure induced draft fan, and a micro negative pressure environment is formed in the cover body through the negative pressure induced draft fan; and the flow guide structure is arranged in a pipeline between the gas collection port and the negative pressure induced draft fan and is used for guiding the gas flow to uniformly flow. The conical cover body is covered with the fiber membrane, the cover body is conical through the mode that gas is sealed in the membrane and a framework is supported outside the membrane, the conical cover body has a good induction effect on gas flow under a certain negative pressure condition (micro-negative pressure), the gas collection blind area can be effectively reduced, and the gas collection efficiency is greatly improved; the flow guide structure optimizes an airflow path, reduces pressure loss and improves the energy efficiency of the fan.

Description

Technical Field

[0001] This utility model relates to the field of pollutant gas collection technology in reclaimed water plants, and in particular to a general-purpose semi-open facility pollutant gas collection device. Background Technology

[0002] Pollutants (such as hydrogen sulfide and ammonia) generated during the operation of urban reclaimed water plants pose a threat to the environment and human health. Traditional collection methods mainly include forced ventilation and closed-loop collection.

[0003] The equipment is exposed and does not actively collect gas, resulting in a large range of pollution diffusion and low treatment efficiency.

[0004] It can be directly extracted by a negative pressure fan, but due to differences in equipment structure, the collected air volume is large, the energy consumption is high, and it is easily affected by cross airflow, resulting in a blind spot in the collection.

[0005] The shortcomings of existing technology are:

[0006] Strong ventilation cannot control the spread of pollution, and closed collection requires processing a large amount of redundant air.

[0007] Semi-open facilities have complex structures, and traditional enclosures cannot simultaneously accommodate equipment operation and gas sealing.

[0008] Turbulent flow within the pipeline leads to pressure loss and collection blind spots, affecting the treatment effect. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a universal semi-open facility polluted gas collection device. To achieve the above objectives, this utility model adopts the following technical solution:

[0010] A general-purpose semi-open facility pollutant gas collection device, comprising:

[0011] The conical cover is composed of a skeleton and a fiber membrane, with the skeleton located outside the fiber membrane to form a sealed space inside the membrane.

[0012] The air inlet is located at the top of the conical cover;

[0013] The air volume regulation system includes an air volume control valve and a negative pressure exhaust fan, which creates a micro-negative pressure environment inside the enclosure.

[0014] The airflow guiding structure is installed in the duct between the air collection port and the negative pressure exhaust fan to guide the airflow to flow evenly.

[0015] Furthermore, the bottom edge of the conical cover is provided with an elastic sealing skirt, which forms a dynamic sealed contact with the surface of the semi-open facility.

[0016] Furthermore, the fiber membrane comprises:

[0017] Inner layer: Polytetrafluoroethylene anti-corrosion layer, thickness 0.1~0.3mm;

[0018] Intermediate layer: Glass fiber reinforced layer, thickness 0.2~0.5mm;

[0019] Outer layer: Nano-titanium dioxide self-cleaning coating, thickness ≤5μm.

[0020] Furthermore, the frame is a carbon steel frame with a detachable modular design, including a main support beam and detachable support rods, which are fixed by bolts.

[0021] Furthermore, the main support beam has an adjustable height via a telescopic bracket, which includes a telescopic rod and a locking knob, with an adjustment range of 0.5 to 3 meters.

[0022] Furthermore, it also includes a pressure monitoring system, comprising:

[0023] The pressure sensor is installed inside the conical enclosure;

[0024] The controller is electrically connected to the negative pressure induced draft fan and the air volume control valve to adjust the negative pressure value in real time.

[0025] Furthermore, the surface of the conical cover is provided with an openable and closable inspection door and a transparent observation window, and the inspection door is equipped with a quick-locking mechanism.

[0026] Furthermore, the flow guiding structure includes a flow guide plate and flow guide blades. The flow guide plate is disposed on the elbow of the pipe, and the flow guide blades are installed at the rear end of the tapered pipe.

[0027] Furthermore, the surface of the fiber membrane is provided with tear-resistant reinforcing ribs, which are woven from warp and weft threads of the same material as the membrane material, with a spacing of 100~300mm.

[0028] Furthermore, it also includes an airflow distributor connected to the air collection port, which includes several airflow ports distributed in the middle of the conical cover.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The conical hood is covered with a fiber membrane. The hood is conical in shape by sealing the gas inside the membrane and supporting it with an external skeleton. Under certain negative pressure conditions (slight negative pressure), the conical hood has a good induction effect on airflow, which can effectively reduce the gas collection blind zone and greatly improve the gas collection efficiency.

[0031] 2. The airflow path is optimized by the guide structure, reducing pressure loss and improving fan efficiency;

[0032] 3. The frame is located outside the fiber membrane to avoid direct contact with polluting gases, effectively increasing the service life of the equipment. Attached Figure Description

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0034] Figure 1 This is a schematic diagram of the main structural layer of an embodiment of the present utility model;

[0035] Figure 2 This is a schematic diagram of the flow guiding structure according to an embodiment of the present utility model;

[0036] Figure 3 This is a schematic diagram of the airflow distributor structure according to an embodiment of the present invention.

[0037] In the above attached figures: 1. Conical shroud; 2. Frame; 21. Main support beam; 22. Support rod; 3. Fiber membrane; 31. Reinforcing rib; 4. Air collection port; 5. Air volume control valve; 6. Negative pressure exhaust fan; 7. Guide structure; 71. Guide plate; 72. Guide blade; 8. Elastic sealing skirt; 9. Inspection door; 10. Observation window; 11. Airflow distributor; 12. Airflow outlet. Detailed Implementation

[0038] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] like Figure 1 As shown in the figure, this utility model embodiment proposes a general-purpose semi-open facility polluted gas collection device, comprising:

[0043] The conical cover 1 is composed of a skeleton 2 and a fiber membrane 3. The skeleton 2 is located outside the fiber membrane 3, forming a sealed space inside the membrane.

[0044] Air collection port 4 is located at the top of the conical cover 1;

[0045] The air volume regulation system includes an air volume control valve 5 and a negative pressure exhaust fan 6, which creates a micro-negative pressure environment inside the enclosure.

[0046] The airflow guiding structure 7 is installed in the pipe between the air collection port 4 and the negative pressure fan 6 to guide the airflow to flow evenly.

[0047] The workflow is as follows: The device uses a conical hood 1 and a frame 2 to support a fiber membrane 3, forming a sealed space within the membrane. This completely covers the semi-open facility (such as a sludge dewatering machine), with a flexible skirt at the bottom dynamically sealing the equipment surface. A negative pressure fan 6 creates a micro-negative pressure environment (-50~-200Pa) within the hood through an air collection port 4, causing polluted gas to flow directionally from bottom to top and enter the pipeline through the air collection port 4. A flow guiding structure 7 is installed inside the pipeline to optimize the airflow path, eliminate turbulence and pressure loss, and ensure that the gas is uniformly delivered to the treatment system. The gas volume control valve 5 is linked to the fan and dynamically adjusts the gas volume based on real-time pressure monitoring, minimizing the amount of gas to be processed while ensuring collection efficiency, thus achieving high-efficiency and low-consumption operation.

[0048] In this embodiment, as Figure 1 As shown, the bottom edge of the conical cover 1 is provided with an elastic sealing skirt 8, which forms a dynamic airtight contact with the surface of the semi-open facility. The elastic sealing skirt 8 dynamically contacts the equipment surface, dynamically adapts to the equipment's operating conditions, prevents leakage, and ensures airtightness.

[0049] In this embodiment, the fiber membrane 3 includes:

[0050] Inner layer: Polytetrafluoroethylene anti-corrosion layer, thickness 0.1~0.3mm;

[0051] Intermediate layer: Glass fiber reinforced layer, thickness 0.2~0.5mm;

[0052] Outer layer: Nano-titanium dioxide self-cleaning coating, thickness ≤5μm.

[0053] Multilayer composite membranes extend the lifespan of membrane materials and reduce maintenance frequency.

[0054] The fiber membrane 3 is fixedly connected by a buckle, which allows the fiber membrane 3 to be detachably installed on the carriage.

[0055] In this embodiment, as Figure 1 As shown, the frame 2 is a carbon steel frame with a detachable modular design, including a main support beam 21 and detachable support rods 22, which are fixed by bolts. The modular design of the detachable carbon steel frame 2 supports quick assembly and disassembly, and flexibly adapts to different equipment.

[0056] In this embodiment, as Figure 1 As shown, the main support beam 21 has an adjustable height via a telescopic bracket. The bracket includes a telescopic rod and a locking knob, with an adjustment range of 0.5~3m. The telescopic bracket adjusts the height of the cover to accommodate a height range of 0.5~3m, improving installation flexibility.

[0057] In this embodiment, a pressure monitoring system is also included, comprising:

[0058] A pressure sensor is installed inside the conical housing 1;

[0059] The controller is electrically connected to the negative pressure fan 6 and the air volume control valve 5 to adjust the negative pressure value in real time. The pressure monitoring system provides real-time feedback and adjusts the fan and valves accordingly to maintain a stable negative pressure of -50 to -200 Pa, ensuring effective collection.

[0060] In this embodiment, as Figure 1 As shown, the surface of the conical cover 1 is provided with an openable and closable maintenance door 9 and a transparent observation window 10. The maintenance door 9 is equipped with a quick-locking mechanism. The combination of the openable and closable maintenance door 9, the transparent observation window 10, and the quick-locking mechanism facilitates equipment maintenance and operation monitoring, reducing downtime.

[0061] In this embodiment, as Figure 1 , Figure 2 As shown, the flow guiding structure 7 includes a guide plate 71 and guide vanes 72. The guide plate 71 is disposed at the elbow of the pipe, and the guide vanes 72 are installed at the rear end of the tapered pipe. The combination of the guide plate 71 and the guide vanes 72 optimizes the airflow path, reduces pipe resistance, and improves fan efficiency. Alternatively, spiral protrusions or grooves can be provided on the inner wall of the pipe to create a rotating motion of the airflow, enhancing mixing or reducing stagnation areas.

[0062] In this embodiment, as Figure 1 As shown, the surface of the fiber membrane 3 is provided with tear-resistant reinforcing ribs, which are woven from warp and weft threads of the same material as the membrane material, with a spacing of 100~300mm. This enhances the strength of the membrane material, improves its overall strength, and facilitates reuse.

[0063] In this embodiment, as Figure 3As shown, it also includes an airflow distributor 11, connected to the air collection port 4, which includes several airflow ports 12, distributed in the middle of the conical shroud 1. This eliminates airflow blind spots within the conical shroud.

[0064] 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 general-purpose semi-open facility pollution gas collecting device characterized by comprising: The utility model relates to a kind of semi-open facilities, including: Conical cover, which is composed of a skeleton and a fiber membrane, the skeleton is located outside the fiber membrane, forming a closed space inside the membrane; Gas collection port, which is arranged at the top of the conical cover; Air volume regulating system, including air volume control valve and negative pressure induced draft fan, micro-negative pressure environment is formed in the cover by negative pressure induced draft fan; Flow guide structure, which is arranged in the pipeline between the gas collection port and the negative pressure induced draft fan, guides the uniform flow of air.

2. A universal semi-open facility pollution gas collection device as claimed in claim 1, characterized in that: The bottom edge of the conical cover is provided with an elastic sealing skirt, which forms dynamic sealing contact with the surface of the semi-open facility.

3. A universal semi-open facility pollution gas collection device as claimed in claim 1, characterized in that: The fiber membrane includes: Inner layer: polytetrafluoroethylene corrosion-resistant layer, thickness 0.1~0.3mm; Middle layer: glass fiber reinforced layer, thickness 0.2~0.5mm; Outer layer: nano titanium dioxide self-cleaning coating, thickness ≤5μm.

4. A universal semi-open facility pollution gas collection device as claimed in claim 1, characterized in that: The skeleton is a carbon steel skeleton and adopts a detachable modular design, including a main support beam and a detachable support rod, which are connected and fixed by bolts.

5. A universal semi-open facility pollution gas collection device as claimed in claim 4, characterized in that: The main support beam adjusts the height through a telescopic support, which includes a telescopic rod and a locking knob, and the adjustment range is 0.5~3m.

6. A universal semi-open facility pollution gas collection device as claimed in claim 1, characterized in that: It also includes a pressure monitoring system, which includes: Pressure sensor, installed inside the conical cover; Controller, which is electrically connected with the negative pressure induced draft fan and the air volume control valve, adjusts the negative pressure value in real time.

7. A universal semi-open facility pollution gas collection device as claimed in claim 1, characterized in that: The surface of the conical cover is provided with an openable and closable maintenance door and a transparent observation window, and the maintenance door is equipped with a quick locking mechanism.

8. A universal semi-open facility pollution gas collection device as claimed in claim 1, characterized in that: The flow guide structure includes flow guide plates and flow guide vanes, the flow guide plates are arranged at the elbow of the pipeline, and the flow guide vanes are installed at the rear end of the tapered pipeline.

9. A universal semi-open facility pollution gas collection device as claimed in claim 1, characterized in that: The surface of the fiber membrane is provided with anti-tear reinforcing ribs, which are woven with warp and weft threads made of the same material as the membrane material, with a spacing of 100~300mm.

10. A universal semi-open facility pollution gas collection device as claimed in claim 1, characterized in that: It also includes an air flow distributor connected with the gas collection port, which includes a plurality of air flow ports, and the air flow ports are distributed in the middle of the conical cover.

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