Nuclear power variable air volume control regulating valve

Abstract

The utility model discloses a nuclear power variable air volume control regulating valve, and relates to the technical field of nuclear power, the nuclear power variable air volume control regulating valve comprises a valve body, a telescopic assembly and a regulating assembly are fixedly installed on the inner wall of the bottom of the valve body, the telescopic assembly comprises a first motor fixedly installed on the inner wall of the bottom of the valve body, and a first regulating rod is fixedly installed at the driving end of the first motor; a second adjusting rod is rotationally installed at the bottom of the first adjusting rod, a cross rod is rotationally installed at the end of the second adjusting rod and the end of the second adjusting rod, a sliding column is rotationally installed at the cross connecting position of the cross rod, and an adjusting block is rotationally installed at the bottom of the sliding column. According to the utility model, through the telescopic assembly, when a large air quantity is required to pass through the valve, the motor I is started to drive the adjusting rod I and the adjusting rod II to move, so that the cross rod is retracted, and the sealing plate is retracted on the inner side wall of the valve cavity, thereby reducing the obstruction when the air flow passes through, preventing the air flow from directly impacting the rotating shaft or the internal structure of the valve, and reducing the formation of vortexes.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power technology field, concretely is a kind of nuclear power variable air volume control regulating valve. BACKGROUND

[0002] With the transformation of global energy structure and the increasingly stringent environmental protection requirements, nuclear power, as a kind of efficient, clean energy form, has been widely applied and developed, in nuclear power plant, in order to ensure the normal operation of each system and equipment, the air volume of ventilation system needs to be accurately controlled, and the variable air volume control regulating valve, as an important component in the ventilation system, undertakes the key tasks such as regulating air volume and maintaining system pressure balance.

[0003] The nuclear power variable air volume control regulating valve usually adopts butterfly valve or louver valve structure, and such valves usually place the rotating shaft inside the valve body, and drive the opening and closing of the blade by rotating the rotating shaft, so as to realize the adjustment of air volume.

[0004] However, when large air flow passes through the valve, the air flow will be directly hindered by the rotating shaft, resulting in change of air flow direction, forming vortex, and the vortex will form turbulent flow state in the valve body, increasing the resistance and energy loss of air flow, and the air flow vibration excited by vortex will be transmitted to the valve structure, causing vibration of the valve.

[0005] Therefore, the present application is proposed. UTILITY MODEL CONTENT

[0006] The utility model discloses a kind of nuclear power variable air volume control regulating valves, to solve the problems raised in the above background technology.

[0007] To solve the above technical problems, the utility model provides a kind of nuclear power variable air volume control regulating valve, including valve body, the valve body bottom inner wall is fixedly installed with telescopic component, adjusting assembly, the telescopic component includes fixedly installed motor one in the valve body bottom inner wall, the motor one drive end is fixedly installed with adjusting rod one, the adjusting rod one bottom is rotatably installed with adjusting rod two, the adjusting rod two is rotatably installed with cross bar with adjusting rod two end portion, the cross bar intersection connection rotatably installs with slide column, the slide column bottom is rotatably installed with adjusting block, the adjusting block outer wall is slidably installed with adjusting assembly;

[0008] The adjusting assembly includes the guide rod slidably installed on the outer wall of the adjusting block, the guide rod end is rotatably installed with connecting rod one, and the connecting rod one end is fixedly installed on the drive end of motor two.

[0009] The slide column top is fixedly installed with adjusting plate.

[0010] Furthermore, a second connecting rod is rotatably mounted at the end of the guide rod away from the first connecting rod, and a connecting shaft is rotatably mounted at the end of the second connecting rod. The bottom of the connecting shaft is fixedly mounted on the bottom inner wall of the valve body.

[0011] A support rod is fixedly installed on the outer wall of the bottom of the sliding column, and the end of the support rod is rotatably connected to the top of the adjusting block.

[0012] Furthermore, there are three intersecting rods, all three of which are rotatably connected end to end, and each of the three intersecting rods is rotatably mounted with a sliding column at the intersection.

[0013] The valve body includes a valve cavity, and a groove is provided at the bottom of the valve cavity. The width of the groove is equal to the width of the blade.

[0014] Furthermore, the sealing plate is made of rubber, and the surface of the sealing plate is coated with an anti-stick coating;

[0015] Each of the three sliding columns has an adjusting plate fixedly installed on its top. The adjusting plate includes blades fixedly installed on the top of the sliding column. A sealing plate is fixedly installed on the side wall of the blade, and each blade is in contact with the adjacent sealing plate.

[0016] Furthermore, the adjusting block is square, and the outer wall of the adjusting block is in contact with the inner wall of the guide rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By means of telescopic components, when a large air volume is required to pass through the valve, start motor one, drive adjustment rod one and adjustment rod two to move, so that the cross rod retracts and the sealing plate is brought to the inner wall of the valve cavity, which reduces the obstruction of airflow and avoids the airflow directly impacting the rotating shaft or the internal structure of the valve, thereby reducing the formation of eddies;

[0019] 2. By reducing eddies and airflow turbulence, this invention can reduce airflow resistance and energy loss, allowing airflow to pass through the valve cavity more smoothly, improving ventilation efficiency, thereby reducing vibration and noise generation, and improving valve stability and service life.

[0020] 3. The adjustment component can precisely control the opening and closing angle of the blades, thereby achieving precise adjustment of the air volume. After the second motor starts, it drives the adjustment block to move in the slide groove through the linkage of the first connecting rod and the guide rod, thereby realizing the rotation of the slide column and the adjustment of the opening and closing angle of the blades. Attached Figure Description

[0021] Figure 1 A schematic diagram of the internal structure of a nuclear power plant variable air volume control valve;

[0022] Figure 2This is a schematic diagram of the telescopic component structure of a nuclear power plant variable air volume control regulating valve;

[0023] Figure 3 This is a schematic diagram of the regulating component structure of a nuclear power plant variable air volume control regulating valve;

[0024] Figure 4 This is a schematic diagram of the front structure of a nuclear power plant variable air volume control valve;

[0025] Figure 5 This is a schematic diagram of the valve body structure of a nuclear power plant variable air volume control regulating valve;

[0026] Figure 6 This is an enlarged schematic diagram of the regulating plate structure of a nuclear power plant variable air volume control regulating valve.

[0027] In the diagram: 1. Valve body; 101. Valve cavity; 102. Slide groove;

[0028] 2. Adjusting plate; 201. Blade; 202. Sealing plate;

[0029] 3. Telescopic assembly; 301. Motor 1; 302. Adjusting rod 1; 303. Adjusting rod 2; 304. Cross rod; 305. Sliding column; 306. Support rod; 307. Adjusting block;

[0030] 4. Adjustment assembly; 401. Motor II; 402. Connecting rod I; 403. Guide rod; 404. Connecting shaft; 405. Connecting rod II. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-6This utility model provides a technical solution: a nuclear power plant variable air volume control regulating valve, including a valve body 1. A telescopic assembly 3 and an adjusting assembly 4 are fixedly installed on the inner wall of the bottom of the valve body 1. The telescopic assembly 3 is driven by a motor 301 fixedly installed on the inner wall of the bottom of the valve body 1. An adjusting rod 302 is fixedly installed at the driving end of the motor 301. An adjusting rod 303 is rotatably installed at the bottom of the adjusting rod 302. The end of the adjusting rod 303 is rotatably connected to a cross rod 304. A sliding column 305 is rotatably installed at the intersection of the cross rods 304. An adjusting block 307 is rotatably installed at the bottom of the sliding column 305, and the adjusting assembly 4 is slidably installed on the outer wall of the adjusting block 307. The adjusting assembly 4 includes a guide rod 403 slidably installed on the outer wall of the adjusting block 307. A connecting rod 402 is rotatably installed at the end of the guide rod 403. The valve is fixedly installed on the drive end of motor 401, while the top of the slide column 305 is fixedly installed with the adjusting plate 2. Through the independent control of motor 301 and motor 401, the valve realizes a dual adjustment mechanism for the valve opening: when fine adjustment of air volume is required, motor 401 drives the adjusting component 4, the guide rod 403 moves in an arc, and drives the adjusting block 307 to slide in the slide groove 102, thereby precisely controlling the opening and closing angle of the adjusting plate 2 through the rotation of the slide column 305; when a large air volume is required, motor 301 is started, and through the movement of adjusting rod 302 and adjusting rod 303, the cross rod 304 is retracted, and the sealing plate 202 is received on the inner wall of the valve cavity 101, thereby reducing the obstruction when the airflow passes through, avoiding the airflow directly impacting the internal structure of the valve, and effectively reducing eddies and energy loss.

[0033] Please see Figure 2 This utility model provides a technical solution: a nuclear power plant variable air volume control regulating valve, including three cross rods 304, all three cross rods 304 being rotatably connected end to end, and each of their intersections is rotatably mounted with a sliding column 305, so that when the motor 1 301 drives the regulating rod 1 302 and the regulating rod 2 303, the sliding column 305 can be acted on through multiple intersections, thereby achieving more precise regulation and control.

[0034] Please see Figure 1 , Figure 6 This utility model provides a technical solution: a nuclear power plant variable air volume control regulating valve, including three sliding columns 305 with regulating plates 2 fixedly installed on their tops respectively. The regulating plates 2 include blades 201 fixedly installed on the tops of the sliding columns 305, and sealing plates 202 fixedly installed on the side walls of the blades 201. Each blade 201 is tightly fitted with the adjacent sealing plate 202. This design enables the sealing plates 202 to form an effective seal, thereby reducing airflow leakage and significantly improving the sealing performance of the valve.

[0035] Please see Figure 2 , Figure 3This utility model provides a technical solution: a nuclear power plant variable air volume control regulating valve, including a guide rod 403 connected to a motor 401 via a connecting rod 402. A connecting rod 405 is rotatably mounted at the end of the guide rod 403 away from the connecting rod 402. A connecting shaft 404 is rotatably mounted at the end of the connecting rod 405. The bottom of the connecting shaft 404 is fixedly mounted on the bottom inner wall of the valve body 1. This makes the guide rod 403 form a three-point support structure through the connecting rod 402, the connecting rod 405, and the connecting shaft 404, making the guide rod 403 more stable during movement and effectively reducing shaking and deviation.

[0036] Please see Figure 4 , Figure 5 This utility model provides a technical solution: a nuclear power plant variable air volume control regulating valve, including a valve body 1 including a valve cavity 101, a sliding groove 102 is provided at the bottom of the valve cavity 101, the width of the sliding groove 102 is equal to the width of the blade 201, so that when the blade 201 is closed, it can completely cover the sliding groove 102, thereby effectively preventing airflow leakage through the sliding groove 102; at the same time, the sliding groove 102 also provides a stable sliding track for the regulating block 307, ensuring that the regulating block 307 can remain stable during the sliding process, thereby ensuring the stability of the entire regulating mechanism.

[0037] Please see Figure 2 This utility model provides a technical solution: a nuclear power plant variable air volume control regulating valve, including a support rod 306 fixedly installed on the bottom outer wall of a sliding column 305. The support rod 306 serves as a connecting member between the sliding column 305 and the regulating block 307, and its end is rotatably connected to the top of the regulating block 307, thereby providing stable support for the regulating block 307.

[0038] Please see Figure 1 , Figure 2 , Figure 3 This utility model provides a technical solution: a nuclear power plant variable air volume control regulating valve, including a square regulating block 307 whose outer wall is tightly fitted with the inner wall of the guide rod 403, so that the square regulating block 307 can slide stably within the guide rod 403 and is not prone to shaking or displacement.

[0039] Please see Figure 6 This utility model provides a technical solution: a nuclear power plant variable air volume control regulating valve, including a sealing plate 202 made of rubber. This rubber has good elasticity and flexibility, and can fit tightly into the part that needs to be sealed to form an effective sealing barrier. At the same time, the surface of the sealing plate 202 is coated with an anti-stick coating. The anti-stick coating can ensure that the surface of the sealing plate 202 remains clean during the closing or opening process, and avoid impurities from adhering and affecting the sealing effect, thereby indirectly improving the sealing performance of the sealing plate 202.

[0040] Working principle: When airflow needs to be adjusted, motor 2 401 starts, driving connecting rod 1 402 to move. The movement of connecting rod 1 402 in turn drives guide rod 403 to move left and right in an arc. The movement of guide rod 403 causes adjusting block 307 to move within slide groove 102. The movement of adjusting block 307 drives slide column 305 to rotate. The rotation of slide column 305 adjusts the airflow by changing the opening and closing angle of blade 201. When a large airflow is needed through the valve, motor 1 301 starts, driving adjusting rod 1 302 and adjusting rod 2 303 to move, causing cross rod 304 to retract. The retraction of cross rod 304 pulls sealing plate 202 onto the inner wall of valve cavity 101, thereby reducing airflow obstruction. At this time, airflow can smoothly enter valve cavity 101, reducing eddies and energy loss, and improving ventilation efficiency.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A nuclear power plant variable air volume control regulating valve, comprising a valve body (1), characterized in that: The valve body (1) is fixedly installed with a telescopic assembly (3) and an adjusting assembly (4) on the bottom inner wall. The telescopic assembly (3) includes a motor (301) fixedly installed on the bottom inner wall of the valve body (1). An adjusting rod (302) is fixedly installed on the driving end of the motor (301). An adjusting rod (303) is rotatably installed on the bottom of the adjusting rod (302). A cross rod (304) is rotatably installed on the ends of the adjusting rod (303) and the cross rod (304). A sliding column (305) is rotatably installed at the intersection of the cross rod (304). An adjusting block (307) is rotatably installed on the bottom of the sliding column (305). An adjusting assembly (4) is slidably installed on the outer wall of the adjusting block (307). The adjustment assembly (4) includes a guide rod (403) slidably mounted on the outer wall of the adjustment block (307), and a connecting rod (402) is rotatably mounted at the end of the guide rod (403), and the end of the connecting rod (402) is fixedly mounted on the drive end of the motor (401). An adjusting plate (2) is fixedly installed on the top of the sliding column (305).

2. The nuclear power plant variable air volume control regulating valve as described in claim 1, characterized in that: There are three crossbars (304), and the three crossbars (304) are rotatably connected end to end. A sliding column (305) is rotatably installed at the intersection of the three crossbars (304).

3. The nuclear power plant variable air volume control regulating valve as described in claim 2, characterized in that: Each of the three sliding columns (305) has an adjusting plate (2) fixedly installed on its top. The adjusting plate (2) includes a blade (201) fixedly installed on the top of the sliding column (305). A sealing plate (202) is fixedly installed on the side wall of the blade (201). Each blade (201) is in contact with the adjacent sealing plate (202).

4. The nuclear power plant variable air volume control regulating valve as described in claim 3, characterized in that: The guide rod (403) is rotatably mounted with a connecting rod (405) at the end away from the connecting rod (402), and a connecting shaft (404) is rotatably mounted at the end of the connecting rod (405). The bottom of the connecting shaft (404) is fixedly mounted on the bottom inner wall of the valve body (1).

5. A nuclear power plant variable air volume control regulating valve as described in claim 4, characterized in that: The valve body (1) includes a valve cavity (101), and a groove (102) is provided at the bottom of the valve cavity (101). The width of the groove (102) is equal to the width of the blade (201).

6. A nuclear power plant variable air volume control regulating valve as described in claim 5, characterized in that: A support rod (306) is fixedly installed on the bottom outer wall of the sliding column (305), and the end of the support rod (306) is rotatably connected to the top of the adjusting block (307).

7. A nuclear power plant variable air volume control regulating valve as described in claim 6, characterized in that: The adjusting block (307) is square, and the outer wall of the adjusting block (307) is in contact with the inner wall of the guide rod (403).

8. A nuclear power plant variable air volume control regulating valve as described in claim 7, characterized in that: The sealing plate (202) is made of rubber, and the surface of the sealing plate (202) is coated with an anti-stick coating.

Images