A type of duct capable of handling emergency exhaust under multiple operating conditions

Abstract

This utility model relates to the field of duct technology and discloses a duct capable of handling emergency exhaust under multiple operating conditions. It includes a main collection pipe, one end of which is connected to the input end of an external waste gas receiving and processing device. Multiple pipe heads are fixedly installed on the outside of the main collection pipe, with an electric valve fixedly installed at one end of each pipe head. These electric valves are electrically connected to an external controller via cables. Each of the multiple electric valves has an inner collection pipe fixedly installed at one end, with multiple collection ports on the outside of the inner collection pipe. Additionally, multiple electric valves have an outer collection pipe fixedly installed at one end, also with multiple collection ports on the outside of the outer collection pipe. The inner and outer collection pipes are connected via multiple electric valves on the outside of the main collection pipe. Sensors are installed at the entrance and exit of a sealed enclosure. One of the inner collection pipes inside the enclosure serves as a backup collection pipe and is equipped with an electric valve. A control system links the sensors and electric valves, allowing for adjustments to the exhaust volume under different operating conditions.

Description

Technical Field

[0001] This utility model relates to the field of duct technology, and in particular to a duct that can handle emergency exhaust under multiple working conditions. Background Technology

[0002] A sealed enclosure is an environmental and safety measure that controls pollutants, odors, and noise by installing a sealed enclosure outside the equipment or space where odor sources are concentrated, combined with negative pressure collection or other technical means. Examples include sealed enclosure devices for coarse bar screens and sludge plate and frame filter presses. By sealing the enclosure, the gas collection space is reduced, and the air volume requirement of the deodorization system is lowered, thereby saving investment and operating costs for deodorization equipment. Combined with the collection duct, a slightly negative pressure environment is generated to prevent pollutants and odors from escaping.

[0003] Conventional collection ducts and sealed enclosures are fixed installations with a constant collection air volume. However, when the bar screen is removing slag and pollutants increase, leading to higher odor concentrations, or when equipment in the enclosure malfunctions and requires maintenance, the constant air volume of the conventionally designed collection ducts cannot handle these emergency situations. This can easily cause odor concentration fluctuations and spills, posing safety hazards to personnel. Furthermore, due to environmental factors, dust, impurities, and other airborne particles can accumulate at the collection inlet of the duct due to negative pressure, affecting odor collection. Therefore, periodic manual cleaning is necessary, increasing labor intensity, and even before cleaning, the amount of odor collected by the duct remains limited. Utility Model Content

[0004] The purpose of this invention is to provide a duct that can handle emergency ventilation under multiple working conditions, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A duct capable of handling emergency exhaust under multiple operating conditions includes a main collection pipe, one end of which is connected to the input end of an external waste gas receiving and processing device. Multiple pipe heads are fixedly installed on the outside of the main collection pipe, and an electric valve is fixedly installed at one end of each pipe head. The electric valve is electrically connected to an external main controller via a cable. Each of the multiple electric valves has an inner collection pipe fixedly installed at one end, with multiple collection ports on the outside of the inner collection pipe. Additionally, multiple electric valves have an outer collection pipe fixedly installed at one end, also with multiple collection ports on the outside of the outer collection pipe. Furthermore, the inner and outer collection pipes also include multiple... A series of segmented pipes are connected and fixed in sequence. One of the segmented pipes has a connecting flange fixedly installed at one end. A sealing chamber is fixedly installed on one side of the connecting flange and extends into the segmented pipe. The sealing chamber is located in the segmented pipe away from the electric valve. An electric push rod is fixedly installed inside the sealing chamber. The electric push rod is electrically connected to an external main controller via a cable. Protective covers are fixedly installed on both sides of the segmented pipe. A translation rod is movably installed on the opposite side of each of the two protective covers. A secondary tie rod is fixedly installed on one side of each translation rod. A main tie rod is movably connected between the secondary tie rods and the sealing chamber.

[0007] As a further preferred embodiment of this utility model, a connecting frame is fixedly installed at the output end of the electric push rod, and one end of the connecting frame is fixedly connected to one end of the main pull rod. With the help of the pushing and pulling force of the electric push rod, the main pull rod can achieve reciprocating horizontal movement in multiple segmented tubes.

[0008] As a further preferred embodiment of this utility model, the protective cover is provided with multiple air holes and two sliding grooves, which can prevent debris from the external environment from entering the segmented pipe.

[0009] As a further preferred embodiment of this utility model, sliders are fixedly installed at the top and bottom of the translation rod, and multiple ball bearings are rotatably installed on both sides of the sliders. A positioning groove is provided on one side of the translation rod, which provides a basis for positioning and installing the auxiliary pull rod. Two side blocks are also fixedly installed on one side of the translation rod relative to the protective cover. The sliders are slidably connected in the guide grooves at the top or bottom of the protective cover. One end of one of the side blocks extends through one of the sliding grooves to one side of the protective cover.

[0010] As a further preferred embodiment of this utility model, a connecting brush plate is fixedly installed between the two side blocks and close to one side of the protective cover. The connecting brush plate is fixedly installed with bristles on one side of the protective cover. The translation rod moves horizontally on one side of the protective cover, thereby cooperating with the side blocks to drive the connecting brush plate to move on the windward side of the protective cover, thereby cleaning the foreign objects adsorbed on one side of the protective cover.

[0011] As a further preferred embodiment of this utility model, a positioning block is fixedly installed at one end of the auxiliary pull rod, and a connecting block is fixedly installed at the other end of the auxiliary pull rod. A pin hole is opened in the connecting block, and the positioning block is inserted into one of the positioning slots and fixed by screws. The connecting blocks at one end of the two auxiliary pull rods at the same horizontal position are fixedly connected.

[0012] As a further preferred embodiment of this utility model, multiple insert rods are fixedly installed on the outside of the main pull rod. One end of each insert rod is inserted into a pin hole in one of the connecting blocks. By setting an auxiliary pull rod on one side of the translation rod, the multiple insert rods on the outside of the main pull rod can be inserted into the corresponding connecting blocks respectively, thereby cooperating with the electric push rod to realize the synchronous reciprocating horizontal movement of multiple translation rods.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In this utility model, an inner collection pipe and an outer collection pipe are set on the outside of the main collection pipe through multiple electric valves. Sensors are installed at the entrance and exit of the sealed enclosure. One of the inner collection pipes in the enclosure is a spare collection pipe and is equipped with an electric valve. The sensor and the electric valve are linked by the control system, which can adjust the exhaust volume for different operating conditions.

[0015] 2. In this utility model, the inner collection pipe and the outer collection pipe are composed of multiple segmented pipes. A sliding translation rod is set on one side of the protective cover outside the segmented pipe, and an auxiliary pull rod is set on one side of the translation rod. The multiple auxiliary pull rods are connected in series by the main pull rod, which can work with the electric push rod to realize the synchronous reciprocating horizontal movement of the multiple translation rods. This allows the connecting brush plate on one side of the translation rod to automatically clean the foreign objects adhering to the windward side of the protective cover, realizing automatic cleaning, reducing the labor intensity of personnel, and ensuring the efficiency of the outer collection pipe in collecting odorous gases. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the external collection tube structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the outer collection tube of this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0021] Figure 6This is a schematic diagram of the disassembled structure of the translation rod and the auxiliary tie rod of this utility model;

[0022] Figure 7 for Figure 6 Enlarged view of point C in the middle.

[0023] In the diagram: 1. Main collection pipe; 2. Pipe head; 3. Electric valve; 4. Inner collection pipe; 5. Outer collection pipe; 6. Segmented pipe; 7. Connecting flange; 8. Sealing chamber; 9. Electric push rod; 10. Protective cover; 11. Translation rod; 12. Secondary tie rod; 13. Main tie rod; 14. Connecting frame; 15. Slide groove; 16. Sliding block; 17. Side block; 18. Connecting brush plate; 19. Positioning groove; 20. Positioning block; 21. Connecting block; 22. Insert rod; 23. Sealing enclosure; 24. Inlet / outlet; 25. Sensor. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figures 1-7 As shown, this utility model provides a duct capable of handling emergency exhaust under multiple working conditions, including a main collection pipe 1. One end of the main collection pipe 1 is connected to the input end of an external waste gas receiving and processing device. Multiple pipe heads 2 are fixedly installed on the outside of the main collection pipe 1. An electric valve 3 is fixedly installed on one end of each pipe head 2, and the electric valve 3 is electrically connected to an external main controller via a cable. An inner collection pipe 4 is fixedly installed on one end of each of the multiple electric valves 3, and multiple collection ports are provided on the outside of the inner collection pipe 4. An outer collection pipe 5 is fixedly installed on one end of each of the multiple electric valves 3, and multiple collection ports are also provided on the outside of the outer collection pipe 5. The inner collection pipe 4 and the outer collection pipe 5 also include multiple... Segmented pipe 6, multiple segmented pipes 6 are connected and fixed in sequence, one end of one segmented pipe 6 is fixedly installed with a connecting flange 7, a sealing chamber 8 is fixedly installed on one side of the connecting flange 7 and extends into the segmented pipe 6, and the sealing chamber 8 is located in the segmented pipe 6 away from the electric valve 3, an electric push rod 9 is fixedly installed inside the sealing chamber 8, the electric push rod 9 is electrically connected to an external main controller through a cable, protective covers 10 are fixedly installed on both sides of the segmented pipe 6, translation rods 11 are movably installed on the opposite side of the two protective covers 10, auxiliary pull rods 12 are fixedly installed on one side of the translation rods 11, and main pull rods 13 are movably connected between the multiple auxiliary pull rods 12 and the sealing chamber 8.

[0026] like Figures 2-3 As shown, a connecting frame 14 is fixedly installed at the output end of the electric push rod 9, and one end of the connecting frame 14 is fixedly connected to one end of the main pull rod 13. With the help of the pushing and pulling force of the electric push rod 9, the main pull rod 13 can achieve reciprocating horizontal movement in multiple segmented tubes 6.

[0027] like Figures 3-7As shown, the protective cover 10 has multiple air vents and two sliding grooves 15. The protective cover 10 prevents external debris from entering the segmented pipe 6. Slider 16 is fixedly installed at the top and bottom of the translation rod 11. Multiple ball bearings are rotatably installed on both sides of the slider 16. A positioning groove 19 is provided on one side of the translation rod 11, providing a base for the positioning and installation of the auxiliary pull rod 12. Two side blocks 17 are fixedly installed on one side of the translation rod 11 relative to the protective cover 10. The slider 16 is slidably connected to the guide groove at the top or bottom of the protective cover 10. One end of each side block 17 extends through one of the sliding grooves 15 to one side of the protective cover 10. A connecting brush plate 18 is fixedly installed between the two side blocks 17 and close to the protective cover 10. Brush bristles are fixedly installed on the connecting brush plate 18 relative to the side of the protective cover 10. The translation rod 11 is located within the protective cover 10... One side moves horizontally, thereby cooperating with the side block 17 to drive the connecting brush plate 18 to move on the windward side of the protective cover 10, thereby cleaning the foreign objects adsorbed on one side of the protective cover 10. One end of the auxiliary pull rod 12 is fixedly installed with a positioning block 20, and the other end of the auxiliary pull rod 12 is fixedly installed with a connecting block 21. The connecting block 21 has a pin hole. The positioning block 20 is inserted into one of the positioning slots 19 and fixed with screws. The connecting blocks 21 at one end of the two auxiliary pull rods 12 at the same horizontal position abut against each other. Multiple insert rods 22 are fixedly installed on the outside of the main pull rod 13. One end of the insert rod 22 is inserted into the pin hole in one of the connecting blocks 21. By setting the auxiliary pull rod 12 on one side of the translation rod 11, the multiple insert rods 22 on the outside of the main pull rod 13 can be inserted into the corresponding connecting blocks 21 respectively, thereby cooperating with the electric push rod 9 to realize the synchronous reciprocating horizontal movement of multiple translation rods 11.

[0028] It should be noted that this utility model is a duct that can handle emergency exhaust under multiple working conditions. When the bar screen is removing slag and the pollutants increase, causing the odor concentration to rise, or when the equipment in the sealed enclosure 23 malfunctions and needs to be repaired, requiring personnel to enter and exit for work, inspection, and maintenance, the sensor 25 (which can be a magnetic proximity sensor) at the entrance 24 of the sealed enclosure 23 detects that the door is open. The main controller controls the electric valve 3 outside the enclosure to be reduced by 20%, and at the same time opens the electric valve 3 of the backup inner collection pipe 4 inside the enclosure. The inner collection pipe 4 increases the air volume, quickly reduces the pollutant concentration, and ensures the working environment for the staff, thereby ensuring the normal work of the staff in the sealed enclosure 23. When the staff leaves the sealed enclosure 23 area, the sensor 25 senses that the entrance 24 is closed, the electric valve 3 of the backup inner collection pipe 4 is closed, and all electric valves 3 in the entire system return to their initial settings, ensuring the average stability of the entire system's collection.

[0029] When cleaning foreign objects from the windward side of the protective cover 10 at regular intervals, the external main controller activates the electric push rod 9. Once the electric push rod 9 is powered on, its output end connecting bracket 14 drives the main pull rod 13 to reciprocate horizontally within the sealed chamber 8. The main pull rod 13 drives multiple connecting blocks 21 via the insert rod 22, causing multiple auxiliary pull rods 12 to drive corresponding translation rods 11 to slide along the guide groove on the inner side of the protective cover 10. At this time, the side blocks 17 on both sides of the translation rod 11 move synchronously within the sliding groove 15, thereby driving the connecting brush plate 18 to reciprocate horizontally along the windward side of the protective cover 10. The connecting brush plate 18 has densely packed bristles on the side facing the protective cover 10, which effectively removes dust, impurities, and other foreign objects adsorbed at the air vents of the protective cover 10 during the horizontal movement, preventing foreign objects from clogging the air vents and affecting ventilation efficiency.

[0030] 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 illustrative of the 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A duct capable of handling multi-condition emergency exhaust, characterized in that: The system includes a main collection pipe (1), one end of which is connected to the input end of an external waste gas receiving and processing device. Multiple pipe heads (2) are fixedly installed on the outside of the main collection pipe (1). An electric valve (3) is fixedly installed on one end of each pipe head (2), and the electric valve (3) is electrically connected to an external main controller via a cable. An inner collection pipe (4) is fixedly installed on one end of each of the multiple electric valves (3), and multiple collection ports are provided on the outside of the inner collection pipe (4). An outer collection pipe (5) is fixedly installed on one end of each of the multiple electric valves (3), and multiple collection ports are also provided on the outside of the outer collection pipe (5). The inner collection pipe (4) and the outer collection pipe (5) also include multiple segmented pipes (6), which are connected sequentially. Fixed, one of the segment pipes (6) is fixedly installed with a connecting flange (7) at one end, a sealing chamber (8) is fixedly installed on one side of the connecting flange (7) and extends into the segment pipe (6), and the sealing chamber (8) is located in the segment pipe (6) away from the electric valve (3), an electric push rod (9) is fixedly installed on the inside of the sealing chamber (8), the electric push rod (9) is electrically connected to the external main controller through a cable, protective covers (10) are fixedly installed on both sides of the segment pipe (6), translation rods (11) are movably installed on the opposite side of the two protective covers (10), a secondary tie rod (12) is fixedly installed on one side of the translation rod (11), and a main tie rod (13) is movably connected between the multiple secondary tie rods (12) and the sealing chamber (8).

2. The wind pipe capable of handling multiple working conditions and emergency exhaust according to claim 1, characterized in that: The output end of the electric push rod (9) is fixedly installed with a connecting frame (14), and one end of the connecting frame (14) is fixedly connected to one end of the main pull rod (13).

3. The ductwork capable of handling emergency exhaust under multiple operating conditions according to claim 1, characterized in that: The protective cover (10) has multiple air holes and two sliding grooves (15).

4. The ductwork capable of handling emergency exhaust under multiple operating conditions according to claim 3, characterized in that: The top and bottom of the translation rod (11) are fixedly installed with sliders (16), and multiple balls are rotatably installed on both sides of the sliders (16). A positioning groove (19) is opened on one side of the translation rod (11). Two side blocks (17) are also fixedly installed on the side of the translation rod (11) relative to the protective cover (10). The sliders (16) are slidably connected in the guide grooves at the top or bottom of the protective cover (10). One end of the side block (17) extends through one of the slide grooves (15) to one side of the protective cover (10).

5. A duct capable of handling emergency exhaust under multiple operating conditions according to claim 4, characterized in that: A connecting brush plate (18) is fixedly installed between the two side blocks (17) and close to the protective cover (10). The connecting brush plate (18) has bristles fixedly installed on the side of the protective cover (10) opposite to the protective cover (10).

6. A duct capable of handling emergency exhaust under multiple operating conditions according to claim 4, characterized in that: One end of the auxiliary pull rod (12) is fixedly installed with a positioning block (20), and the other end of the auxiliary pull rod (12) is fixedly installed with a connecting block (21). The connecting block (21) has a pin hole. The positioning block (20) is inserted into one of the positioning slots (19) and fixed with screws. The connecting blocks (21) at one end of the two auxiliary pull rods (12) at the same horizontal position are fixedly connected.

7. A duct capable of handling emergency exhaust under multiple operating conditions according to claim 6, characterized in that: Multiple insert rods (22) are fixedly installed on the outside of the main tie rod (13), and one end of the insert rod (22) is inserted into the pin hole in one of the connecting blocks (21).

Images