Ventilation system for power plant

Abstract

The invention discloses a ventilation system for an electric power plant, which belongs to the technical field of plant ventilation, and comprises an air inducing pipe, a ventilation box, a plurality of air guiding pipes, a plurality of air guiding pipes, a plurality of air guiding pipes, a plurality of air guiding pipes and a plurality of air guiding pipes, the two ports are formed in the baffle, and a sealing mechanism is arranged in the ventilation box; the two mounting plates are arranged in the two ventilation chambers respectively, filter screens are mounted on the mounting plates, and cleaning mechanisms are arranged in the ventilation chambers; according to the scheme, after a large amount of dust and impurities are accumulated on the filter screen in the ventilation chamber in ventilation use, the opening in one side of the filter screen can be blocked through the sealing mechanism, the opening in the other side of the filter screen is opened, and the effect of replacing air with the ventilation chamber for ventilation is achieved; the air passing through the through opening can be matched with the cleaning mechanism, one side of the filter screen in the ventilation chamber with the other side in a closed state can be cleaned, vice versa, workers do not need to clean the filter screen frequently and repeatedly, time and labor are saved, and the use effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of plant ventilation, and more specifically, to a ventilation system for a power plant area. Background Art

[0002] A power plant area generally refers to an industrial area for power generation, transformation, and distribution, which may include different types of energy production facilities such as thermal power plants, hydropower plants, wind power plants, solar power stations, nuclear power plants, etc.

[0003] Among them, in a thermal power plant, especially in a power plant using coal as fuel, there will be more dust and other pollutants in its external environment. Therefore, a ventilation system is installed in the plant buildings and structures in the plant area for air circulation. A fan and a filter screen are provided in the ventilation system. The fan sends air into the indoor space, and the filter screen filters the pollutants to protect the equipment and the health of personnel in the plant and buildings.

[0004] At present, after a period of time, a large amount of dust will accumulate on the filter screen in the ventilation system, causing the filter screen to be blocked and affecting the normal ventilation and filtration in the room. Usually, it is necessary for workers to clean the filter screen frequently and even disassemble it repeatedly, which not only consumes a lot of manpower and time, is inconvenient in the cleaning process, has low work efficiency, but also affects the indoor ventilation and air change during the disassembly and cleaning process, and the use effect is not good.

[0005] Therefore, it is necessary to provide a ventilation system for a power plant area to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a ventilation system for a power plant area to solve the above technical problems.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A ventilation system for a power plant area includes an air intake pipe, and further includes:

[0009] A ventilation box, inside which there are baffles and partitions, and the partitions divide the inner cavity of the ventilation box into two ventilation chambers;

[0010] Two through openings, which are opened on the baffle, and a sealing mechanism is arranged in the ventilation box for alternately sealing one of the through openings;

[0011] Two mounting plates, which are respectively arranged in the two ventilation chambers, and filter screens are installed on the mounting plates. A cleaning mechanism is arranged in the ventilation chamber for cleaning one side of the filter screen;

[0012] Two air outlet pipes, which are arranged on one side of the ventilation box and communicate with the ventilation chambers, and the other side of the ventilation box communicates with the air intake pipe.

[0013] Furthermore, a movable trigger block is provided on the mounting plate, a touch plate is provided on the partition, matching contact switches are provided on one end of the touch plate and the trigger block, and the other ends of the two touch plates are commonly connected to a traction rope that passes through the partition.

[0014] Furthermore, the sealing mechanism comprises:

[0015] A sealing plate, slidably disposed on the baffle plate;

[0016] A telescopic member is installed on the inner wall of the ventilation box, and a connecting plate connected to the sealing plate is provided at the telescopic end of the telescopic member.

[0017] Furthermore, the cleaning mechanism comprises:

[0018] A vertical plate is arranged in the ventilation chamber, a rotating shaft is rotatably arranged on the vertical plate, and a scraper is arranged at one end of the rotating shaft and is in contact with the filter screen;

[0019] The transmission component is arranged in the ventilation chamber and is used for driving the rotating shaft to rotate.

[0020] Furthermore, the transmission component includes:

[0021] A transmission shaft and a driving shaft are rotatably arranged on the partition plate, one end of the transmission shaft is provided with a first bevel gear, and one end of the rotating shaft is provided with a second bevel gear meshing with the first bevel gear;

[0022] A first belt is connected between the transmission shaft in one of the ventilation chambers and the drive shaft in the other ventilation chamber;

[0023] The fan blades are arranged on the driving shaft and are provided in plurality.

[0024] Furthermore, the bottom of the ventilation box is provided with two material drop openings respectively communicating with the ventilation chambers on both sides, and a blocking plate for sealing one of the material drop openings is slidably provided at the bottom of the ventilation box;

[0025] The ventilation box is provided with a linkage component, which is used to drive the blocking plate to move in the opposite direction when the sealing plate moves.

[0026] Furthermore, the linkage component includes:

[0027] A first rotating rod is rotatably arranged on the bottom wall of the ventilation box, a first spur gear is arranged at one end of the first rotating rod, and a first tooth plate meshing with the first spur gear is arranged on the outer wall of the sealing plate;

[0028] The adapter assembly drives the blocking plate to move in cooperation with the first rotating rod.

[0029] Further, the adapter assembly includes a second rotating rod and a third rotating rod rotatably arranged at the bottom of the ventilation box, and the second rotating rod and the third rotating rod are provided with a second spur gear and a third spur gear meshing with each other;

[0030] A second belt is transmission-connected between the second rotating rod and the first rotating rod; a second tooth plate meshing with the third spur gear is provided on the blocking plate.

[0031] Furthermore, two collecting boxes are detachably provided at the bottom of the ventilation box, and the two collecting boxes are respectively located at the two material dropping openings.

[0032] Furthermore, brackets are provided on both sides of the partition, and a steering cylinder is rotatably provided on the bracket.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. In this scheme, when a lot of dust and impurities are accumulated on the filter in the ventilation room that is being ventilated, the resistance of air passing through the filter is increased, and the air pressure in the ventilation room will become larger. At this time, the opening on one side of the filter will be blocked by the sealing mechanism, and the opening on the other side will be opened. Then the wind will enter the ventilation room on the other side from the opened opening, and be filtered through the unblocked filter on the other side, thus completing the effect of air replacement ventilation room ventilation, avoiding the current filter being blocked and affecting the normal ventilation and filtering operations in the room, and effectively ensuring the indoor ventilation performance.

[0035] 2. In this solution, the air passing through the opening will cooperate with the cleaning mechanism to clean one side of the filter in the closed ventilation chamber on the other side, and vice versa. The air can be replaced in different ventilation chambers to always ensure that the air can be ventilated and filtered smoothly. There is no need for staff to frequently clean the filter or even disassemble it multiple times, which saves a lot of manpower and time, has a good effect on air ventilation and filtration, and avoids the situation where the disassembly and cleaning process will affect indoor ventilation, and has a good use effect.

[0036] 3. In this solution, when the sealing plate moves, it will drive the blocking plate to move in the opposite direction, so that the drop-out port on the blocked side is in an open state, and the impurities scraped off the filter screen will fall through the drop-out port in this open state, which can avoid the accumulation of impurities in the ventilation room, and prevent the secondary pollution of the air when the ventilation room is used for ventilation and filtration in the future. There is no need for manual cleaning every time, which saves time and effort; and it will not affect the normal ventilation and filtration on the other side, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the external structure of the ventilation box of the present invention;

[0038] Figure 2 It is a schematic bottom - view structure diagram of the ventilation box of the present invention;

[0039] Figure 3 It is a schematic internal - structure diagram of the ventilation box of the present invention;

[0040] Figure 4 is Figure 3 an enlarged - structure schematic diagram at position A in

[0041] Figure 5 It is a schematic diagram of the other - side view of the interior of the ventilation box of the present invention;

[0042] Figure 6 is Figure 5 an enlarged - structure schematic diagram at position B in

[0043] Figure 7 is Figure 5 an enlarged - structure schematic diagram at position C in

[0044] Figure 8 It is a schematic top - view structure diagram of the interior of the ventilation box of the present invention;

[0045] Figure 9 is Figure 8 an enlarged - structure schematic diagram at position D in

[0046] Figure 10 It is a schematic bottom - view structure diagram of the partial cross - section of the ventilation box of the present invention and after removing the collection box;

[0047] Figure 11 is Figure 10 an enlarged - structure schematic diagram at position E in

[0048] Explanation of the reference numerals in the figure:

[0049] 1. Air duct; 2. Ventilation box; 3. Baffle; 4. Partition; 5. Ventilation chamber; 6. Through port; 7. Sealing mechanism; 71. Sealing plate; 72. Telescopic member; 73. Connecting plate; 8. Mounting plate; 9. Cleaning mechanism; 91. Vertical plate; 92. Rotating shaft; 93. Scraper; 94. Transmission component; 941. Transmission shaft; 942. Drive shaft; 943. First bevel gear; 944. Second bevel gear; 945. First belt; 946. Fan blade; 10. Filter; 11. Air outlet duct; 12. Trigger Block; 13. Touch plate; 14. Contact switch; 15. Towing rope; 16. Dropping port; 17. Block; 18. Linkage component; 181. First rotating rod; 182. First spur gear; 183. First tooth plate; 184. Adapter assembly; 1841. Second rotating rod; 1842. Third rotating rod; 1843. Second spur gear; 1844. Third spur gear; 1845. Second belt; 1846. Second tooth plate; 19. Collecting box; 20. Cover plate; 21. Water baffle; 22. Telescopic member. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] See also Figure 1 - 11 , a ventilation system for a power plant, comprising an air duct 1, and further comprising:

[0052] The ventilation box 2 is provided with a baffle 3 and a partition 4 inside, and the partition 4 divides the inner cavity of the ventilation box 2 into two ventilation chambers 5;

[0053] Two openings 6 are provided on the baffle plate 3, and a sealing mechanism 7 is provided in the ventilation box 2 for alternately sealing one of the openings 6;

[0054] Two mounting plates 8 are respectively arranged in two ventilation chambers 5, a filter screen 10 is installed on the mounting plates 8, and a cleaning mechanism 9 is provided in the ventilation chamber 5 for cleaning one side of the filter screen 10;

[0055] Two air outlet pipes 11 are arranged on one side of the ventilation box 2 and communicate with the ventilation chamber 5 , and the other side of the ventilation box 2 communicates with the air duct 1 .

[0056] Specifically, the air intake pipe 1 for ventilating a factory building or a building is connected to this ventilation box 2, and the air outlet pipe 11 of the ventilation box 2 leads into the room. When in use, external air is introduced into the air intake pipe 1 through a fan or the like. Initially, one ventilation port 6 on the baffle 3 is connected, and the other ventilation port 6 is blocked by the sealing mechanism 7. The air introduced through the air intake pipe 1 will enter one of the ventilation chambers 5 through the connected ventilation port 6, and then after being filtered by the filter screen 10, finally enter the room through the air outlet pipe 11, achieving the effect of indoor air intake. After a period of time, when there is a lot of dust and impurities accumulated on the filter screen 10 in this ventilation chamber 5, the air flow path becomes narrower, increasing the resistance of the air passing through the filter screen 10, and the air pressure received in the ventilation chamber 5 will increase. At this time, the sealing mechanism 7 will block the ventilation port 6 on one side of the filter screen 10, that is, this ventilation chamber 5 is in a closed state, and the ventilation port 6 on the other side is opened. Then the air introduced through the air intake pipe 1 will enter the ventilation chamber 5 on the other side through the opened ventilation port 6, and then be filtered by the unblocked filter screen 10 on the other side and discharged from the air outlet pipe 11, that is, the effect of air replacement and ventilation of the ventilation chamber 5 is completed, which can avoid the current filter screen 10 being blocked and affecting the normal ventilation and filtering operations in the room, and can effectively ensure the ventilation and air exchange performance in the room.

[0057] At the same time, when the air passing through the ventilation port 6 cooperates with the cleaning mechanism 9, the cleaning mechanism 9 can clean one side of the filter screen 10 in the ventilation chamber 5 in the closed state on the other side, and can remove the dust and impurities accumulated on this filter screen 10. After another period of time, when the filter screen 10 in the ventilation chamber 5 on the ventilating side is also blocked, the sealing mechanism 7 will block the ventilation port 6 on the blocked side, and at the same time open the ventilation port 6 on the other side, and the air can be ventilated and filtered from the other side. Similarly, the cleaning mechanism 9 will clean the filter screen 10 on the blocked side, and work in this way repeatedly. By replacing different ventilation chambers 5 with air, it can always ensure that the air can be smoothly ventilated and filtered, without the need for staff to clean the filter screen 10 frequently or even disassemble it many times, saving a lot of manpower and time, having a good effect on air ventilation and filtering, and also avoiding the situation that the disassembly and cleaning process will affect the indoor ventilation and air exchange, and having a good use effect.

[0058] In this embodiment, preferably, please refer to Figure 3 and Figures 5 - 9 , a movable trigger block 12 is arranged on the mounting plate 8, a touch plate 13 is arranged on the partition plate 4, a contact switch 14 is arranged at one end of the touch plate 13 and on the trigger block 12, and the other ends of the two touch plates 13 are jointly connected with a traction rope 15 passing through the partition plate 4.

[0059] Specifically, after a period of time, when a large amount of dust and impurities accumulate on the filter screen 10 in the ventilation chamber 5, the resistance of the air passing through the filter screen 10 increases, and the air pressure in the ventilation chamber 5 will become larger. As the pressure difference between the two sides of the filter screen 10 increases, the physical stress borne by each point on the filter screen 10 and the mounting plate 8 will also increase accordingly. Thus, the trigger block 12 will also be subjected to an increasing pressure, and finally, it will drive the trigger block 12 to move. Take Figures 8 - 9 as an example. If the filter screen 10 in the upper ventilation chamber 5 is blocked, the upper trigger block 12 will be pressed and move to the left. The upper trigger block 12 will pull the lower trigger block 12 to move to the right through the traction rope 15. Finally, when the upper trigger block 12 moves to the left and the contact switch 14 on it contacts the contact switch 14 of the touch plate 13, the sealing mechanism 7 will operate, and vice versa. Thus, the sealing mechanism 7 can be triggered according to the blockage condition of the filter screen 10 to open different vents 6, enabling the air to flexibly pass through the unblocked side of the ventilation chamber 5 for ventilation and air exchange. It has good automation, does not require manual observation or manual control, has strong flexibility, and has high practicality.

[0060] Preferably, please refer to Figure 6 and Figures 8 - 9 , brackets 21 are provided on both sides of the partition plate 4, and a steering cylinder 22 is rotatably provided on the brackets 21. With this design, one side of one trigger block 12 is connected to the traction rope 15, and the other end of the traction rope 15 passes through the steering cylinder 22 and the partition plate 4 and is connected to the trigger block 12 on the other side. The steering cylinder 22 can realize the steering of the traction rope 15, improve the force effect of the traction rope 15 on the trigger block 12, and reduce the friction of the traction rope 15, thereby increasing its service life.

[0061] Preferably, please refer to Figures 3 - 5 and Figures 8 - 10 , the sealing mechanism 7 includes:

[0062] A sealing plate 71, slidably arranged on the baffle 3;

[0063] A telescopic member 72, installed on the inner wall of the ventilation box 2. A connecting plate 73 connected to the sealing plate 71 is provided at the telescopic end of the telescopic member 72. In this application, the telescopic member 72 can be an electric telescopic rod, and the telescopic member 72 is electrically connected to the contact switch 14.

[0064] Specifically, when the trigger block 12 is pressed and moves so that the contact switch 14 on it contacts the contact switch 14 of the touch plate 13, the telescopic member 72 will receive a signal and drive the connecting plate 73 and the sealing plate 71 to move. The sealing plate 71 will seal the vent 6 on the side where the filter screen 10 is blocked, while the vent 6 on the other unblocked side will be exposed, and the air will then be diverted to ventilate and filter from this side. In this way, the vent 6 for air intake is replaced reciprocally, with strong flexibility.

[0065] In this embodiment, preferably, please refer to Figures 3 - 6 and Figure 8 , the cleaning mechanism 9 comprises:

[0066] A vertical plate 91 is disposed in the ventilation chamber 5. A rotating shaft 92 is rotatably disposed on the vertical plate 91. A scraper 93 is disposed at one end of the rotating shaft 92 and is fitted with the filter screen 10.

[0067] The transmission component 94 is disposed in the ventilation chamber 5 and is used to drive the rotating shaft 92 to rotate.

[0068] Specifically, the air entering through the opening 6 will drive the rotating shaft 92 to rotate with the cooperation of the transmission component 94, and the rotating shaft 92 will drive the scraper 93 to rotate. The rotating scraper 93 can scrape off the dust and impurities on the filter 10, thereby achieving the cleaning effect of the filter 10.

[0069] In this embodiment, preferably, please refer to Figures 2 - 4 and Figures 6 - 7 , the transmission component 94 includes:

[0070] The transmission shaft 941 and the driving shaft 942 are rotatably arranged on the partition plate 4. A first bevel gear 943 is arranged at one end of the transmission shaft 941, and a second bevel gear 944 meshing with the first bevel gear 943 is arranged at one end of the rotating shaft 92.

[0071] A first belt 945 is connected between the transmission shaft 941 in one ventilation chamber 5 and the driving shaft 942 in another ventilation chamber 5;

[0072] The fan blades 946 are disposed on the driving shaft 942 and are provided in plurality.

[0073] With this design, after the air passing through the opening 6 contacts the blade plate 946, the blade plate 946 drives the driving shaft 942 to rotate, and the driving shaft 942 drives the transmission shaft 941 in the ventilation chamber 5 on the other side to rotate through the first belt 945, and the transmission shaft 941 drives the first bevel gear 943 to rotate, and the second bevel gear 944 and the rotating shaft 92 are driven to rotate through the first bevel gear 943, and the rotating shaft 92 drives the scraper 93 to rotate. Thus, the blade plate 946 in the ventilation chamber 5 on one side of normal ventilation can rotate, and the scraper 93 in the ventilation chamber 5 on the other side can be driven to rotate to clean the filter 10.

[0074] In this embodiment, preferably, please refer to Figures 2 - 3 , Figure 5 and Figures 8 - 11 The bottom of the ventilation box 2 is provided with two blanking openings 16 respectively communicating with the ventilation chambers 5 on both sides, and a blocking plate 17 for sealing one of the blanking openings 16 is slidably provided at the bottom of the ventilation box 2;

[0075] A linkage component 18 is provided on the ventilation box 2 and is used to drive the plugging plate 17 to move in the opposite direction when the sealing plate 71 moves.

[0076] Specifically, when the sealing plate 71 moves to seal the through port 6 on one side of the blockage, the plugging plate 17 will be driven to move in the reverse direction under the cooperation of the linkage component 18, that is, the plugging plate 17 will block the blanking port 16 on the other side. At this time, the blanking port 16 on the side of the blockage is in an open state. Then, as can be seen from the above, the scraper 93 in the ventilation chamber 5 on the side of the blockage will rotate to clean the blocked filter screen 10, and the impurities scraped off from the filter screen 10 will fall through this open blanking port 16, so that the impurities can be discharged. Vice versa, the cleaning of the impurities on the filter screen 10 can be realized, the accumulation of impurities in the ventilation chamber 5 can be avoided, the secondary pollution of the air can be prevented when the ventilation chamber 5 is used for ventilation and filtration subsequently, and there is no need for manual cleaning each time, which saves time and effort and improves the use effect of the device. And the scraping and discharging of impurities are carried out in the ventilation chamber 5 on the side of the blockage, which will not affect the normal ventilation and filtration on the other side. The scraper 93 in the ventilation chamber 5 on the normal ventilation side will not scrape off impurities to prevent the impurities from mixing with the air again and affecting the air quality and filtration performance, and the use effect is good.

[0077] Preferably, please refer to Figure 2 、 Figures 5 - 7 and Figures 10 - 11 , the linkage component 18 includes:

[0078] A first rotating rod 181 is rotatably arranged on the bottom wall of the ventilation box 2. A first straight gear 182 is provided at one end of the first rotating rod 181, and a first toothed plate 183 meshing with the first straight gear 182 is provided on the outer wall of the sealing plate 71;

[0079] A transfer assembly 184 drives the plugging plate 17 to move in cooperation with the first rotating rod 181.

[0080] With such a design, when the sealing plate 71 moves to the right / left, it will drive the first toothed plate 183 to move. The first toothed plate 183 will then drive the first straight gear 182 and the first rotating rod 181 to rotate, and then drive the plugging plate 17 to move to the left / right through the transfer assembly 184.

[0081] In this embodiment, preferably, please refer to Figure 2 and Figures 10 - 11 , the transfer assembly 184 includes a second rotating rod 1841 and a third rotating rod 1842 rotatably arranged at the bottom of the ventilation box 2, and second straight gears 1843 and third straight gears 1844 meshing with each other are provided on the second rotating rod 1841 and the third rotating rod 1842;

[0082] A second rotating rod 1841 and a first rotating rod 181 are drivingly connected by a second belt 1845; a second toothed plate 1846 meshing with the third spur gear 1844 is provided on the plug plate 17.

[0083] With this design, when the sealing plate 71 moves right / left to cause the first rotating rod 181 to rotate counterclockwise / clockwise, the first rotating rod 181 will drive the second rotating rod 1841 and the second spur gear 1843 to rotate counterclockwise / clockwise through the second belt 1845. The second spur gear 1843 will then drive the third spur gear 1844 and the third rotating rod 1842 to rotate clockwise / counterclockwise, and the third spur gear 1844 will drive the second toothed plate 1846 and the plug plate 17 to move left / right.

[0084] Preferably, please refer to Figures 1 - 2 and Figure 10 , two collection boxes 19 are detachably provided at the bottom of the ventilation box 2, and the two collection boxes 19 are respectively located at the two material dropping ports 16. With this design, when the impurities scraped off from the filter screen 10 fall through the material dropping ports 16, they will enter the collection boxes 19 for collection, which can prevent the impurities from scattering and polluting the environment, and the collection boxes 19 can be subsequently removed for unified treatment, with high practicability.

[0085] Preferably, the upper end of the ventilation box 2 is open, and a detachable cover plate 20 is provided on the ventilation box 2. The interior of the ventilation box 2 can be overhauled and cleaned by opening the cover plate 20.

[0086] It should be understood that the examples and embodiments described herein are only for illustration and are not intended to limit the present invention. Those skilled in the art can make various modifications or changes according to it. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0087] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the drawings. If the specific posture changes, the directional indications will also change accordingly.

[0088] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, such descriptions of "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" that appears throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, "a plurality of" means more than two. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A ventilation system for a power plant area, including an air intake pipe (1), characterized in that, Also includes: A ventilation box (2) having a baffle (3) and a partition (4) disposed therein, wherein the partition (4) divides the inner cavity of the ventilation box (2) into two ventilation chambers (5); Two openings (6) are provided on the baffle (3); a sealing mechanism (7) is provided in the ventilation box (2) for alternately sealing one of the openings (6); Two mounting plates (8) are respectively arranged in the two ventilation chambers (5); a filter screen (10) is installed on the mounting plates (8); and the ventilation chamber (5) is provided with a cleaning mechanism (9) for cleaning one side of the filter screen (10); Two air outlet pipes (11) are arranged on one side of the ventilation box (2) and communicate with the ventilation chamber (5), and the other side of the ventilation box (2) communicates with the air induction pipe (1).

2. The ventilation system for a power plant according to claim 1, characterized in that, A movable trigger block (12) is arranged on the mounting plate (8), a touch plate (13) is arranged on the partition plate (4), a matching contact switch (14) is arranged on one end of the touch plate (13) and the trigger block (12), and the other ends of the two touch plates (13) are commonly connected to a traction rope (15) that passes through the partition plate (4).

3. The ventilation system for a power plant area according to claim 2, characterized in that, The sealing mechanism (7) comprises: A sealing plate (71) is slidably disposed on the baffle (3); A telescopic member (72) is mounted on the inner wall of the ventilation box (2), and a connecting plate (73) connected to the sealing plate (71) is provided at the telescopic end of the telescopic member (72).

4. The ventilation system for a power plant area according to claim 3, characterized in that, The cleaning mechanism (9) comprises: A vertical plate (91) is arranged in the ventilation chamber (5), a rotating shaft (92) is rotatably arranged on the vertical plate (91), and a scraper (93) is arranged at one end of the rotating shaft (92) and is in contact with the filter screen (10); A transmission component (94) is disposed in the ventilation chamber (5) and is used to drive the rotating shaft (92) to rotate.

5. The ventilation system for a power plant area according to claim 4, characterized in that, The transmission component (94) comprises: A transmission shaft (941) and a drive shaft (942) are rotatably mounted on the partition plate (4); a first bevel gear (943) is disposed at one end of the transmission shaft (941); and a second bevel gear (944) meshing with the first bevel gear (943) is disposed at one end of the rotating shaft (92); A first belt (945) is connected in transmission between the transmission shaft (941) in one of the ventilation chambers (5) and the drive shaft (942) in the other ventilation chamber (5); A plurality of fan blades (946) are provided on the driving shaft (942).

6. The ventilation system for a power plant area according to claim 3, characterized in that, The bottom of the ventilation box (2) is provided with two drop openings (16) respectively communicating with the ventilation chambers (5) on both sides, and the bottom of the ventilation box (2) is slidably provided with a blocking plate (17) for sealing one of the drop openings (16); The ventilation box (2) is provided with a linkage component (18) for driving the blocking plate (17) to move in the opposite direction when the sealing plate (71) moves.

7. The ventilation system for a power plant area according to claim 6, characterized in that, The linkage component (18) comprises: A first rotating rod (181) is rotatably disposed on the bottom wall of the ventilation box (2), a first spur gear (182) is disposed at one end of the first rotating rod (181), and an outer wall of the sealing plate (71) is provided with a first toothed plate (183) meshing with the first spur gear (182); The adapter assembly (184) drives the blocking plate (17) to move in cooperation with the first rotating rod (181).

8. The ventilation system for a power plant area according to claim 7, characterized in that, The adapter assembly (184) comprises a second rotating rod (1841) and a third rotating rod (1842) rotatably arranged at the bottom of the ventilation box (2), and the second rotating rod (1841) and the third rotating rod (1842) are provided with a second spur gear (1843) and a third spur gear (1844) meshing with each other; A second belt (1845) is transmission-connected between the second rotating rod (1841) and the first rotating rod (181); and a second toothed plate (1846) meshing with the third spur gear (1844) is provided on the blocking plate (17).

9. The ventilation system for a power plant area according to claim 8, characterized in that, Two collecting boxes (19) are detachably provided at the bottom of the ventilation box (2), and the two collecting boxes (19) are respectively located at the two material dropping openings (16).

10. A power plant ventilation system according to claim 2, characterized in that, Brackets (21) are provided on both sides of the partition plate (4), and a steering cylinder (22) is rotatably provided on the bracket (21).

Images