Air intake pipe node butterfly valve linkage device

Abstract

The utility model relates to an air inlet pipe node butterfly valve linkage device, and the air inlet pipe in the box and the air inlet pipe outside the box are Y-shaped intersection intercommunication, and the air inlet pipe in the box and the air inlet pipe outside the box are sealed rotationally connected with first butterfly valve and second butterfly valve respectively through first rotation axis, including limiting block and transmission ring, the rear end inner wall of air inlet pipe in the box and air inlet pipe outside the box is opposite to set up limiting block, the arc slide hole of consistent curvature with transmission ring is set up on two limiting blocks correspondingly, the arc slide hole of two sides limiting block is penetrated through the arc slide hole of two sides limiting block after transmission ring both ends respectively through second rotation axis and is rotationally connected with the valve face of first butterfly valve and second butterfly valve respectively, and two second rotation axes are located the outside of two first rotation axes. Realized the staggered opening and closing of first butterfly valve and second butterfly valve, so that only need to adjust single butterfly valve can complete the linkage adjustment of the closing and opening of air inlet pipe in the box and air inlet pipe outside the box, reduce the operation step, and avoid the mistake of butterfly valve opening or closing caused by artificial factor.

Description

Technical Field

[0001] This utility model relates to the technical field of air intake systems for gas generators, and in particular to an intake pipe node butterfly valve linkage device. Background Technology

[0002] During generator operation, its load-carrying capacity is affected by various factors, among which intake air temperature is a key factor. When the air-fuel mixture in the cylinder is too hot or too cold to meet the generator's specific requirements, the generator's load-carrying capacity will decrease significantly, and it may even be unable to operate at full load. This situation not only affects the generator's normal operating efficiency but may also adversely affect some locations with high requirements for power supply stability, such as hospitals and data centers, potentially leading to serious consequences such as equipment malfunctions and data loss.

[0003] The current solution involves installing two sets of air intake boxes in the generator box, with each set consisting of two air intake boxes connected by a Y-type tee, and also installing four butterfly valves (e.g., Figure 7 This design allows for switching of the air intake source in different seasons: In winter, when the external ambient temperature is below 10℃, the two butterfly valves (A1, A2) inside the enclosure are opened, and the two butterfly valves (B1, B2) outside the enclosure are closed, allowing the generator set to intake air from inside the enclosure, using the gas generated inside the enclosure due to the radiant heat during generator operation, which is higher than the ambient temperature; while in summer, when the temperature inside the enclosure is above 40℃, the two butterfly valves (B1, B2) outside the enclosure are opened, and the two butterfly valves (A1, A2) inside the enclosure are closed, allowing the generator set to intake air from outside the enclosure, using the ambient gas outside that is lower than the temperature inside the enclosure.

[0004] However, in practice, this existing solution requires technicians to operate each butterfly valve individually when switching the air intake source. This involves closing the already open butterfly valve and simultaneously opening the one that was originally closed. This process is not only cumbersome but also prone to human error, as one butterfly valve might be forgotten, resulting in both valves opening or closing simultaneously. Utility Model Content

[0005] The purpose of this invention is to provide an intake pipe node butterfly valve linkage device to solve the above-mentioned problems existing in the prior art.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] An intake pipe node butterfly valve linkage device is disclosed, wherein an internal intake pipe and an external intake pipe are Y-shaped and interconnected. A first butterfly valve and a second butterfly valve are respectively sealed and rotatably connected to the internal and external intake pipes via a first rotating shaft. The device includes a limiting block and a transmission ring. The inner rear end walls of the internal and external intake pipes are provided with limiting blocks opposite to each other. The two limiting blocks are respectively provided with arc-shaped sliding holes with the same curvature as the transmission ring. The two ends of the transmission ring pass through the arc-shaped sliding holes of the two limiting blocks and are rotatably connected to the valve faces of the first butterfly valve and the second butterfly valve respectively via the second rotating shaft. The two second rotating shafts are located outside the two first rotating shafts. When one of the first butterfly valve and the second butterfly valve is closed, the other butterfly valve is opened. The first butterfly valve or the second butterfly valve is connected to an external power input structure.

[0008] The beneficial effects of this utility model are: by setting a transmission ring and a limit block, the alternating opening and closing of the first butterfly valve and the second butterfly valve is realized, so that only a single butterfly valve needs to be adjusted to complete the linkage adjustment of the opening and closing of the air inlet pipe inside the box and the air inlet pipe outside the box, reducing the operation steps and avoiding the error of the butterfly valves opening or closing at the same time due to human factors.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, multiple rotating grooves are spaced apart on both sides of the arc-shaped sliding hole, and a roller is rotatably installed in each rotating groove.

[0011] The further beneficial effects of adopting the above are: compared with the sliding friction between the arc-shaped sliding hole and the transmission ring, the rolling friction between the roller and the transmission ring is smaller, making it easier to drive the transmission ring and further saving the physical strength of technicians.

[0012] Furthermore, the upper part of the axis of each of the two first rotating shafts is respectively penetrated by the internal air intake pipe and the external air intake pipe.

[0013] The external power input structure is a handwheel, which is detachably connected to the upper part of the first rotating shaft.

[0014] The further beneficial effects of adopting the above are: by connecting any axis to an external power input structure, the opening and closing of the first and second butterfly valves can be controlled, and the settings can be flexibly adjusted according to the on-site installation conditions; the handwheel structure has high strength and requires less effort to rotate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of an intake pipe node butterfly valve linkage device according to the present invention.

[0016] Figure 2 This is a schematic diagram illustrating the use of the intake pipe node butterfly valve linkage device of this utility model. Figure 1 ;

[0017] Figure 3 This is a schematic diagram illustrating the use of the intake pipe node butterfly valve linkage device of this utility model. Figure 2 ;

[0018] Figure 4 This is a cross-sectional view of the limiting block of the intake pipe node butterfly valve linkage device of this utility model;

[0019] Figure 5 This is a schematic diagram of the limiting block structure of an intake pipe node butterfly valve linkage device according to the present invention;

[0020] Figure 6 This is a schematic diagram of the external structure of an intake pipe node butterfly valve linkage device according to the present invention.

[0021] Figure 7 This is a diagram of existing technology.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Inner air inlet pipe; 2. Outer air inlet pipe; 3. First butterfly valve; 4. Second butterfly valve; 5. Limiting block; 51. Arc-shaped sliding hole; 52. Rotating groove; 53. Roller; 6. Transmission ring; 7. First rotating shaft; 71. Shaft; 8. Second rotating shaft; 9. Handwheel; 10. Sealing ring. Detailed Implementation

[0024] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0025] Example 1

[0026] like Figures 1 to 6 As shown, an intake pipe node butterfly valve linkage device is disclosed. The intake pipe 1 inside the box and the intake pipe 2 outside the box are connected in a Y-shape. The intake pipe 1 inside the box and the intake pipe 2 outside the box are respectively sealed and rotatably connected to a first butterfly valve 3 and a second butterfly valve 4 through a first rotating shaft 7. The device includes a limiting block 5 and a transmission ring 6. The inner walls of the rear ends of the intake pipe 1 inside the box and the intake pipe 2 outside the box are respectively provided with limiting blocks 5. The two limiting blocks 5 are respectively provided with arc-shaped sliding holes 51 with the same curvature as the transmission ring 6. The two ends of the transmission ring 6 pass through the arc-shaped sliding holes 51 of the limiting blocks 5 on both sides and are rotatably connected to the valve faces of the first butterfly valve 3 and the second butterfly valve 4 through the second rotating shaft 8. The two second rotating shafts 8 are located outside the two first rotating shafts 7. When one of the butterfly valves, the first butterfly valve 3 and the second butterfly valve 4, is closed, the other butterfly valve is opened. The first butterfly valve 3 or the second butterfly valve 4 is connected to an external power input structure.

[0027] In practical implementation, only one of the butterfly valves, the first butterfly valve 3 and the second butterfly valve 4, needs to be equipped with an external power input structure. For example, it can be installed on the first butterfly valve 3. In winter, when the external temperature is low, rotating the first butterfly valve 3 will cause it to rotate counterclockwise from the closed state to the open state. At the same time, this will drive the transmission ring 6 to rotate counterclockwise, and further drive the second butterfly valve 4 to rotate counterclockwise from the open state to the closed state. The external air intake pipe 2 will be closed, and air will enter the generator air intake port through the internal air intake pipe 1 and the first butterfly valve 3 (e.g., Figure 2 In summer, when the external temperature is high, turning the first butterfly valve 3 clockwise will reverse the rotation. Similarly, the internal air intake pipe 1 will close, and air will enter the generator intake port through the external air intake pipe 2 and the second butterfly valve 4 (e.g., Figure 3 The transmission ring 6 and the limit block 5 are set up to realize the staggered opening and closing of the first butterfly valve 3 and the second butterfly valve 4. This allows the linkage adjustment of the opening and closing of the air inlet pipe 1 inside the box and the air inlet pipe 2 outside the box to be completed by adjusting only a single butterfly valve, reducing the number of operation steps and avoiding the error of the butterfly valves opening or closing at the same time due to human factors.

[0028] Example 2

[0029] This embodiment is a further improvement on embodiment 1, as detailed below:

[0030] Multiple rotating grooves 52 are spaced apart on both sides of the arc-shaped sliding hole 51, and a roller 53 is rotatably installed in each rotating groove 52. Compared with the sliding friction between the arc-shaped sliding hole 51 and the transmission ring 6, the rolling friction between the roller 53 and the transmission ring 6 is smaller, making it easier to drive the transmission ring 6 and further saving the physical strength of technicians.

[0031] Example 3

[0032] This embodiment is a further improvement on embodiment 1, as detailed below:

[0033] The upper parts of the shafts 71 of the two first rotating shafts 7 respectively pass through the inner air inlet pipe 1 and the outer air inlet pipe 2. By connecting either shaft 71 to an external power input structure, the opening and closing of the first butterfly valve 3 and the second butterfly valve 4 can be controlled, and the settings can be flexibly configured according to the site installation conditions. In specific implementation, the shafts 71 are sealed with sealing rings on the inner walls of both the inner air inlet pipe 1 and the outer air inlet pipe 2.

[0034] The external power input structure is a handwheel 9, which is detachably connected to the upper part of the shaft 71 of the first rotating shaft 7. The handwheel 9 has high structural strength and requires less effort to rotate. In specific implementation, the handwheel 9 and the shaft 71 can be connected in a snap-fit ​​manner; the handwheel 9 can also be connected to an external control module. The control module collects temperature signals from temperature sensors located inside and outside the enclosure, and drives the motor to rotate the handwheel 9 according to the temperature signals, adjusting the opening and closing of the first butterfly valve 3 and the second butterfly valve 4, thereby realizing the automatic adjustment of the opening and closing of the air inlet pipe 1 inside the enclosure and the air inlet pipe 2 outside the enclosure.

[0035] Example 4

[0036] This embodiment is a further improvement on any one of embodiments 1 to 3, as detailed below:

[0037] Both the first butterfly valve 3 and the second butterfly valve 4 are covered with sealing rings 10. This prevents air leakage from the first butterfly valve 3 and the second butterfly valve 4, which would affect the generator's operating efficiency.

[0038] The surface of the transmission ring 6 is finely polished, and the material of the transmission ring 6 is cast iron. After fine polishing, the surface of the transmission ring 6 is smoother and the friction is smaller, which is beneficial to the movement of the transmission ring 6 on the limit block 5; the cast iron material has high structural strength and strong resistance to deformation.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air intake pipe node butterfly valve linkage device, wherein an inner air intake pipe (1) and an outer air intake pipe (2) are Y-shaped and interconnected, and a first butterfly valve (3) and a second butterfly valve (4) are respectively sealed and rotatably connected to the inner air intake pipe (1) and the outer air intake pipe (2) through a first rotating shaft (7), characterized in that, The device includes a limiting block (5) and a transmission ring (6). The inner walls of the rear ends of the air inlet pipe (1) inside the box and the air inlet pipe (2) outside the box are provided with the limiting block (5). The two limiting blocks (5) are respectively provided with arc-shaped sliding holes (51) with the same curvature as the transmission ring (6). The two ends of the transmission ring (6) pass through the arc-shaped sliding holes (51) of the limiting blocks (5) on both sides and are rotatably connected to the valve faces of the first butterfly valve (3) and the second butterfly valve (4) respectively through the second rotating shaft (8). The two second rotating shafts (8) are located outside the two first rotating shafts (7). When one of the first butterfly valve (3) and the second butterfly valve (4) is closed, the other butterfly valve is opened. The first butterfly valve (3) or the second butterfly valve (4) is connected to the external power input structure.

2. The intake pipe node butterfly valve linkage device according to claim 1, characterized in that, The arc-shaped sliding hole (51) has multiple rotating grooves (52) spaced apart on both sides, and each rotating groove (52) has a roller (53) rotatably arranged in it.

3. The intake pipe node butterfly valve linkage device according to claim 1, characterized in that, The upper part of the shaft center (71) of the two first rotating shafts (7) respectively passes through the inner air inlet pipe (1) and the outer air inlet pipe (2).

4. The intake pipe node butterfly valve linkage device according to claim 1, characterized in that, The external power input structure is a handwheel (9), which is detachably connected to the upper part of the shaft (71) of the first rotating shaft (7).

5. The intake pipe node butterfly valve linkage device according to claim 4, characterized in that, Both the first butterfly valve (3) and the second butterfly valve (4) are covered with sealing rings (10).

6. The intake pipe node butterfly valve linkage device according to any one of claims 1 to 5, characterized in that, The surface of the transmission ring (6) is finely polished, and the material of the transmission ring (6) is cast iron.

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