Single-pipeline non-equal-diameter double-valve air volume regulator

Abstract

The utility model belongs to the technical field of pipeline valves, and particularly discloses a single-pipeline non-equal-diameter double-valve air volume regulator which is used for solving the problem that a linkage transmission structure is prone to being damaged due to synchronous opening and closing regulation of equally-divided valves. Comprising a valve body, and a lower valve and an upper valve which are not coaxially arranged are installed in the middle of the valve body; opening and closing adjustment of the valve plate is achieved through the transmission structure which independently controls opening and closing, independent control over flue gas emission is achieved, the longitudinal opening position can be flexibly and specifically changed according to flue gas characteristics, and therefore flue gas of different sedimentation levels can be accurately emitted in a matched mode. Fluid guiding in the using process of the non-equant valve plate is achieved through the detachable flow guiding structure, and the blocking phenomenon in the opening process of the valve plate is avoided; the problems that due to a linkage type opening and closing structure, dust is difficult to clean, and the damage probability of a linkage type transmission structure is high can be effectively solved, and the purposes of reasonably distributing the smoke exhaust air volume and air pressure and saving the power consumption of the induced draft fan are achieved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline valve technology, and in particular to a single-pipe non-equal diameter dual-valve airflow regulator. Background Technology

[0002] Air volume regulators, also known as air volume control valves or dampers, are indispensable central air conditioning terminal components in ventilation, air conditioning, and air purification projects in industrial plants and civil buildings. Their main function is to regulate airflow, pressure, and direction. Air volume regulators control airflow by changing the valve opening. When the valve opening increases, the air passage widens, and the airflow increases; conversely, when the valve opening decreases, the air passage narrows, and the airflow decreases. Air volume regulators are widely used in various applications requiring precise airflow control, such as laboratories, hospitals, chemical plants, and air conditioning systems.

[0003] Based on the smelting process in the recycled metal industry, the flue gas volume at different process stages can be adjusted to achieve a reasonable distribution of exhaust air volume and pressure, and ultimately achieve stability. The existing technology usually divides the valves into several groups and then uses a linkage structure to realize the synchronous opening and closing of several groups of valves. When adjusting the opening and closing of the flue gas volume at different process stages, if the opening and closing function of multi-state opening and closing is to be realized, the synchronous opening and closing adjustment of the valves in a linkage structure must be adopted. This has the disadvantage that dust cleaning is more difficult and the linkage transmission structure has a higher probability of damage.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a single-pipe non-equal diameter dual-valve air volume regulator to solve the problem that synchronous opening and closing regulation using equally distributed valves can easily damage the linkage transmission structure.

[0006] The objective of this utility model can be achieved through the following technical solution: A single-pipe non-equal diameter dual-valve airflow regulator includes a valve body. A non-coaxial lower valve and an upper valve are installed in the middle of the valve body. A flow-guiding upper convex plate and a flow-guiding lower convex plate that fit against the inner wall of the valve body are installed on the outer side of the valve body corresponding to the lower valve and the upper valve. A rotating shaft is installed through the middle of both the lower valve and the upper valve. A motor is symmetrically arranged on the outer side of the valve body. The output end of the motor is connected to the rotating shaft through a transmission mechanism. A lower sealing arc plate that fits against the inner wall of the valve body is installed at the lower end of the lower valve. An upper sealing arc plate that fits against the inner wall of the valve body is installed at the upper end of the upper valve. Overlapping sealing strips are installed at the intersection of the lower valve and the upper valve.

[0007] Preferably, valve covers are installed at both ends of the valve body, and an upper bracket and a lower bracket are respectively installed in the middle part of the outer ring side of the valve body. The motor is installed on the upper bracket and the lower bracket and the output ends face opposite directions.

[0008] Preferably, the output end of the motor is equipped with a transmission mechanism, which includes meshing bevel gears, one of which is connected to the output end of the motor and the other is connected to a rotating shaft.

[0009] Preferably, two sets of side frames one and two are symmetrically installed on the inner wall of the valve body. The inner wall of side frame one is connected to the lower guide plate, and the inner wall of side frame two is connected to the upper guide plate.

[0010] Preferably, the upper end of the encapsulation strip connected to the lower valve extends to the outside of the upper valve, and the lower end of the encapsulation strip connected to the upper valve extends to the outside of the lower valve.

[0011] Preferably, the two ends of the lower sealing arc plate extend to the outside of the second side frame, and the two ends of the upper sealing arc plate extend to the outside of the first side frame.

[0012] The beneficial effects of this utility model are:

[0013] (1) On the one hand, this utility model realizes the opening and closing adjustment of the valve plate through the transmission structure of independent control opening and closing, so as to achieve independent control of flue gas emission and can flexibly change the longitudinal position of opening according to the characteristics of flue gas, thereby adapting to flue gas with different settling levels for accurate emission; on the other hand, it realizes the fluid guidance during the use of the non-equally divided valve plate through the detachable flow guide structure, so as to avoid the blockage phenomenon during the valve plate opening process; with the combination of the two, it can effectively avoid the problems of difficult dust cleaning caused by the linkage opening and closing structure and the high probability of damage to the linkage transmission structure, and achieve the purpose of rationally allocating the exhaust air volume, air pressure and energy-saving exhaust fan power consumption.

[0014] (2) By dividing the valve plate of the pipeline valve into an unequal structure of upper valve and lower valve, the pipeline valve can be opened unequally during opening and closing adjustment, and each area can achieve opening and closing adjustment without interference. Various opening and closing modes can be realized, such as fully closed, upper valve half open, upper valve fully open, lower valve half open, lower valve fully open, upper valve half open and lower valve half open, and upper valve fully open and lower valve fully open. This allows the pipeline valve to be applied to different process stages of smelting furnaces in the recycled metal industry and matched with different flue gas emission actions. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings;

[0016] Figure 1 This is a three-dimensional structural view of the entire utility model;

[0017] Figure 2 This is a front view of the present invention;

[0018] Figure 3 This is a schematic diagram of the valve body of this utility model when fully open;

[0019] Figure 4 This is a schematic cross-sectional view of the fully closed valve body of this utility model;

[0020] Figure 5 This is a schematic cross-sectional view of the upper valve of this utility model in half-open position;

[0021] Figure 6 This is a cross-sectional view of the upper valve fully open according to this utility model;

[0022] Figure 7 This is a schematic cross-sectional view of the lower valve of this utility model in half-open position;

[0023] Figure 8 This is a cross-sectional view of the lower valve fully open according to this utility model;

[0024] Figure 9 This is a schematic cross-sectional view of the upper and lower valves of this utility model in half-open position;

[0025] Figure 10 This is a cross-sectional view of the upper and lower valves of this utility model when fully open.

[0026] Legend: 1. Valve body; 2. Valve cover; 3. Upper bracket; 4. Lower bracket; 5. Lower valve; 6. Upper valve; 7. Upper guide plate; 8. Lower guide plate; 9. Motor; 10. Transmission mechanism; 11. Sealing strip; 12. Lower sealing arc plate; 13. Upper sealing arc plate; 14. Side frame one; 15. Side frame two. Detailed Implementation

[0027] 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.

[0028] Example 1: This example is used to solve the problem that synchronous opening and closing adjustment using evenly distributed valves can easily damage the linkage transmission structure.

[0029] Please see Figure 1 - Figure 10As shown, this embodiment is a single-pipe non-equal diameter dual-valve airflow regulator, including a valve body 1. A lower valve 5 and an upper valve 6, which are not coaxially arranged, are installed in the middle of the valve body 1. A guide upper convex plate 7 and a guide lower convex plate 8, which are attached to the inner wall of the valve body 1, are installed on the outer side of the valve body 1 corresponding to the lower valve 5 and the upper valve 6. A rotating shaft is installed through the middle of the lower valve 5 and the upper valve 6. A motor 9 is symmetrically arranged on the outer side of the valve body 1. The output end of the motor 9 is connected to the rotating shaft through a transmission mechanism 10. A lower sealing arc plate 12, which is attached to the inner wall of the valve body 1, is installed at the lower end of the lower valve 5. An upper sealing arc plate 13, which is attached to the inner wall of the valve body 1, is installed at the upper end of the upper valve 6. An overlapping sealing strip 11 is installed at the intersection of the lower valve 5 and the upper valve 6 to improve the sealing effect. The lower sealing arc plate 12, the upper sealing arc plate 13 and the sealing strip 11 are all made of rubber, which can achieve mutual interlacing and finally return to the sealing position during the opening and closing process.

[0030] Valve covers 2 are installed at both ends of valve body 1. Upper bracket 3 and lower bracket 4 are installed in the middle of the outer ring side of valve body 1, respectively. Motor 9 is installed on upper bracket 3 and lower bracket 4 with the output ends facing opposite directions. Transmission mechanism 10 is installed at the output end of motor 9. Transmission mechanism 10 includes meshing bevel gears. One bevel gear is connected to the output end of motor 9, and the other bevel gear is connected to the rotating shaft. Through this linkage structure setting of independent control opening and closing mode, the probability of opening and closing failure and easy damage caused by complex linkage structure can be effectively reduced.

[0031] Basic principles: Please refer to Figure 1 - Figure 3 As shown, the valve plate of the pipeline valve is divided into an unequal structure of upper valve 6 and lower valve 5. This allows the pipeline valve to achieve unequal opening during regulation, and each area can achieve opening and closing regulation without interference. Please refer to [link to relevant documentation]. Figure 4 - Figure 10 As shown, the valve can achieve six opening and closing modes: fully closed, upper valve 6 half open, upper valve 6 fully open, lower valve 5 half open, lower valve 5 fully open, upper valve 6 half open and lower valve 5 half open, and upper valve 6 fully open and lower valve 5 fully open. This allows the pipeline valve to be applied to different process stages of smelting furnaces in the recycled metal industry, matching the emission action of different flue gas volumes, and achieving the purpose of rationally allocating exhaust air volume, air pressure, and energy-saving induced draft fan power consumption.

[0032] Furthermore, the independently controlled transmission mechanism 10 realizes the opening and closing adjustment of the upper valve 6 and the lower valve 5, achieving independent control of flue gas emission and flexibly changing the longitudinal position of the opening according to the characteristics of the flue gas, thereby adapting to flue gas with different settling levels for accurate emission.

[0033] Example 2: This example is used to solve the problem of how to quickly clean dust adhering between valve plates that are not equally divided.

[0034] Please see Figure 2 - Figure 3 As shown, a single-pipe non-equal diameter dual-valve airflow regulator of this embodiment includes two sets of side frames 14 and 15 symmetrically installed on the inner wall of the valve body 1. The inner wall of the side frame 14 is connected to the lower guide plate 8, and the inner wall of the side frame 15 is connected to the upper guide plate 7. The upper end of the sealing strip 11 connected to the lower valve 5 extends to the outside of the upper valve 6, and the lower end of the sealing strip 11 connected to the upper valve 6 extends to the outside of the lower valve 5. The two ends of the lower sealing plate 12 extend to the outside of the side frame 15, and the two ends of the upper sealing plate 13 extend to the outside of the side frame 14.

[0035] Please see Figure 1 - Figure 3 As shown, for unequally divided valve plates, by setting the upper guide plate 7 and the lower guide plate 8 connected to the valve body 1 on the outer side of the upper valve 6 and the lower valve 5 respectively, the opening and closing interference of the unequally divided valve plate during use can be effectively reduced. Furthermore, the double-sided guide plate 7 and the lower guide plate 8 realize the flow guiding function during the use of the pipeline valve, and avoid the blockage phenomenon during the valve plate opening process.

[0036] Furthermore, the upper guide plate 7 and the lower guide plate 8 can be disassembled through side frame 14 and side frame 2 15 respectively, which facilitates the rapid cleaning of the dust adhering to the upper guide plate 7 and the lower guide plate 8 when the valve plate is replaced.

[0037] Combining Embodiments 1 and 2, on the one hand, the valve plate's opening and closing is adjusted through an independently controlled transmission structure, achieving independent control of flue gas emissions and allowing for flexible adjustment of the longitudinal opening position based on flue gas characteristics, thus adapting to flue gas with different settling levels for accurate emission; on the other hand, a detachable flow guide structure guides the fluid during the use of the non-equally divided valve plate, preventing blockage during valve plate opening. This combined design effectively avoids the difficulties in dust cleaning and the high probability of damage to linkage-type opening and closing structures, achieving the goal of rationally allocating exhaust air volume, air pressure, and energy-saving induced draft fan power consumption.

[0038] Example 3: Combining the technical content of Examples 1 and 2, the usage method and principle of this utility model include the following steps:

[0039] Step 1: Based on the flue gas emission requirements, select from six opening and closing methods: fully closed, upper valve 6 half open, upper valve 6 fully open, lower valve 5 half open, lower valve 5 fully open, upper valve 6 half open and lower valve 5 half open, and upper valve 6 fully open and lower valve 5 fully open.

[0040] Step 2: In step 1, the opening and closing adjustment is achieved by an independently controlled transmission mechanism 10, which avoids the situation of poor flue gas release caused by regional interference adjustment.

[0041] Step 3: When excessive dust accumulates in the pipeline, the upper guide plate 7 and the lower guide plate 8 can be disassembled through side frame 14 and side frame 2 15 respectively, which facilitates the rapid cleaning of the dust adhering to the upper guide plate 7 and the lower guide plate 8 simultaneously when the valve plate is replaced.

[0042] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A single duct non-equal double valve air volume regulator comprising a valve body (1), characterized in that, The middle part of the valve body (1) is provided with a lower valve (5) and an upper valve (6) arranged non-coaxially, the outer side of the valve body (1) corresponding to the lower valve (5) and the upper valve (6) is provided with a flow guide upper convex plate (7) and a flow guide lower convex plate (8) matched with the inner wall thereof, the middle part of the lower valve (5) and the upper valve (6) is provided with a rotating shaft penetratingly installed, the outer side of the valve body (1) is symmetrically provided with a motor (9), the output end of the motor (9) is connected with the rotating shaft through a transmission mechanism (10); the lower end of the lower valve (5) is provided with a lower arc sealing plate (12) matched with the inner wall of the valve body (1), the upper end of the upper valve (6) is provided with an upper arc sealing plate (13) matched with the inner wall of the valve body (1), and the intersection of the lower valve (5) and the upper valve (6) is respectively provided with a sealing strip (11) overlapped.

2. A single duct non-equal double valve airflow regulator according to claim 1, wherein, The both ends of the valve body (1) are provided with valve covers (2), the middle part of the outer ring side of the valve body (1) is respectively provided with an upper support (3) and a lower support (4), the motor (9) is installed on the upper support (3) and the lower support (4) and the output end thereof faces oppositely.

3. A single duct non-equal double valve air volume regulator according to claim 2, wherein, The output end of the motor (9) is provided with a transmission mechanism (10), the transmission mechanism (10) comprises a pair of bevel gears engaged with each other, one of the bevel gears is connected with the output end of the motor (9), and the other bevel gear is connected with the rotating shaft.

4. A single duct non-equal double valve airflow regulator according to claim 1, wherein, The inner wall of the valve body (1) is symmetrically provided with two groups of side frames one (14) and side frames two (15), the inner wall of the side frame one (14) is connected with the flow guide lower convex plate (8), and the inner wall of the side frame two (15) is connected with the flow guide upper convex plate (7).

5. A single duct non-equal double valve airflow regulator according to claim 1, wherein, The upper end of the sealing strip (11) connected with the lower valve (5) extends to the outer side of the upper valve (6), and the lower end of the sealing strip (11) connected with the upper valve (6) extends to the outer side of the lower valve (5).

6. A single duct non-equal double valve airflow regulator according to claim 4, wherein, The both ends of the lower arc sealing plate (12) extend to the outer side of the side frame two (15), and the both ends of the upper arc sealing plate (13) extend to the outer side of the side frame one (14).

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