Leak-proof gas turbine by-pass valve

Abstract

The utility model provides a leakproof gas turbine bypass valve, which relates to the technical field of gas turbine bypass valves, and comprises a valve body, a connecting pipe is arranged on the valve body, a sealing structure is arranged on the valve body, the sealing structure mainly comprises two sealing rings, and the sealing rings are arranged on the connecting pipe. The two sealing rings are arranged between the connecting pipe and the valve body, the sealing rings are fixedly connected with a plurality of cylinders, the valve body and the connecting pipe are respectively provided with a plurality of circular grooves, the circular grooves are matched with the cylinders in size, the sealing rings are fixedly connected with rubber rings, and the rubber rings are fixedly connected with the connecting pipe. The gas turbine bypass discharge valve solves the problems that when an existing gas turbine bypass discharge valve is connected with a pipeline, flange plates are usually used for connection, in order to guarantee the sealing performance, a gasket is placed between the two flange plates, the gasket and the flange plates are connected through sealant, and therefore the sealing performance of the sealing ring is reduced, and the sealing ring is not convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of gas turbine bypass valve technology, and in particular to a leak-proof gas turbine bypass valve. Background Technology

[0002] A gas turbine bypass valve is a valve used to regulate or control the flow rate of fluid (usually gas). It is installed on the bypass path of the gas turbine. The main functions of the bypass valve are to maintain the pressure balance of the system during the operation of the gas turbine, regulate the flow rate, and, when necessary, bypass the gas turbine to directly guide the fluid from the inlet to the outlet, thereby protecting the gas turbine from damage caused by excessive pressure or flow.

[0003] Currently, when connecting gas turbine bypass valves to pipelines, flanges are typically used. To ensure a tight seal, a gasket is placed between the two flanges and sealant is used to connect the gasket to the flange. This can lead to situations where it is inconvenient to replace the sealing ring when its sealing performance deteriorates. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a leak-proof gas turbine bypass valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a leak-proof gas turbine bypass valve, comprising a valve body, a connecting pipe provided on the valve body, a sealing structure provided on the valve body, the sealing structure mainly consisting of two sealing rings, the two sealing rings being disposed between the connecting pipe and the valve body, a plurality of cylinders being fixedly connected to the sealing rings, and a plurality of circular grooves being respectively opened on the valve body and the connecting pipe, the circular grooves being adapted to the size of the cylinders.

[0006] The effect achieved by the above components is as follows: several cylinders are inserted into the corresponding circular grooves, thereby connecting the two sealing rings to the valve body and the connecting pipe respectively. Then, the valve body and the connecting pipe are connected together by a flange. The two sealing rings are squeezed between the valve body and the connecting pipe to ensure sealing. This avoids the situation where, when the gas turbine bypass valve is connected to the pipeline, a flange is usually used. In order to ensure sealing, a gasket is placed between the two flanges and sealant is used to connect the gasket to the flange. This can easily lead to the inconvenience of replacing the sealing ring when the sealing performance is reduced.

[0007] Preferably, a rubber ring is fixedly connected to the sealing ring, and the outer diameter of the rubber ring is adapted to the inner diameter of the valve body and the connecting pipe.

[0008] The effect achieved by the above components is that when connecting the sealing rings, the two rubber rings abut against the inner walls of the valve body and the connecting pipe respectively, thereby enhancing the connection effect.

[0009] Preferably, a connecting block is fixedly connected to one of the sealing rings. The connecting block is made of rubber, and a connecting groove is formed on one of the sealing rings. The size of the connecting block is adapted to the size of the connecting groove.

[0010] The effect achieved by the above components is that inserting the connecting block into the connecting groove can strengthen the connection between the two sealing rings, thereby enhancing the sealing effect.

[0011] Preferably, the connecting block has a placement groove, and a plurality of telescopic rods are fixedly connected in the placement groove.

[0012] The effect achieved by the above components is that when the connecting block is inserted into the connecting groove, several telescopic rods can be stretched, so that the two ends of the telescopic rods squeeze the connecting block, thereby strengthening the connection effect between the connecting block and the connecting groove.

[0013] Preferably, a spring is fitted onto the telescopic rod, and the two ends of the spring are respectively fixedly connected to the upper and lower inner walls of the placement groove.

[0014] The effect achieved by the above components is as follows: the connecting block is squeezed so that it can be inserted into the connecting groove. At this time, the spring is in a contracted state, so the spring's rebound force acts on the connecting block, squeezing the connecting block into the connecting groove.

[0015] Preferably, the valve body is provided with a leak-proof structure, which is mainly composed of a balloon skin, and the four sides of the balloon skin are glued and fixed to the valve body.

[0016] The effect achieved by the above components is that a sealed environment is formed between the balloon skin and the valve body. When the valve body leaks, the gas will enter the cavity surrounded by the balloon skin, causing the balloon skin to deform and bulge, making it easier to detect the leak in time.

[0017] Preferably, an alarm is fixedly connected to the valve body.

[0018] The effect achieved by the above components is to trigger an alarm when a leak occurs in the valve body.

[0019] Preferably, two fixing blocks are fixedly connected to the valve body, and a rotating rod is rotatably connected to both fixing blocks. A push rod is fixedly connected to the rotating rod, a first contact point is fixedly connected to the rotating rod, and a second contact point is fixedly connected to the valve body.

[0020] The aforementioned components achieve the following effect: when the balloon skin inflates, it pushes the push rod upward, causing the rotating rod to rotate, which in turn causes the first contact point to make contact with the second contact point, thereby connecting the circuit that controls the alarm and alerting staff to perform timely maintenance.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this utility model, by setting a sealing structure, several cylinders are inserted into corresponding circular grooves, thereby connecting two sealing rings to the valve body and the connecting pipe respectively. Then, the valve body and the connecting pipe are connected together by a flange. The two sealing rings are squeezed between the valve body and the connecting pipe to ensure sealing. When connecting the sealing rings, the two rubber rings abut against the inner walls of the valve body and the connecting pipe respectively to enhance the connection effect. Inserting the connecting block into the connecting groove can enhance the connection effect between the two sealing rings, thereby enhancing the sealing effect. When the connecting block is inserted into the connecting groove... It can extend several telescopic rods, causing the two ends of the telescopic rods to press against the connecting blocks, thereby strengthening the connection effect between the connecting blocks and the connecting groove. Pressing the connecting blocks allows them to be inserted into the connecting groove. At this time, the spring is in a contracted state, so the spring's rebound force acts on the connecting blocks, pressing them into the connecting groove. This avoids the situation where, when the gas turbine bypass valve is connected to the pipeline, it is usually connected by a flange. In order to ensure sealing, a gasket is placed between the two flanges and sealant is used to connect the gasket to the flange. This can easily lead to the situation where it is inconvenient to replace the sealing ring when its sealing performance deteriorates. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a leak-proof gas turbine bypass valve is provided for this utility model.

[0023] Figure 2 This utility model presents a three-dimensional structural schematic diagram of a leak-proof gas turbine bypass valve from another perspective.

[0024] Figure 3 A partial schematic diagram of the sealing structure of a leak-proof gas turbine bypass valve proposed in this utility model;

[0025] Figure 4 This is another schematic diagram of the sealing structure of a leak-proof gas turbine bypass valve proposed in this utility model.

[0026] Legend: 1. Valve body; 2. Connecting pipe; 3. Sealing structure; 31. Sealing ring; 32. Circular groove; 33. Cylindrical ring; 34. Rubber ring; 35. Connecting block; 36. Connecting groove; 37. Placement groove; 38. Telescopic rod; 39. Spring; 4. Leak-proof structure; 41. Balloon skin; 42. Fixing block; 43. Rotating rod; 44. Push rod; 45. First contact; 46. Second contact; 47. Alarm. Detailed Implementation

[0027] Example 1, such as Figure 1 As shown, a leak-proof turbine bypass valve includes a valve body 1, on which a connecting pipe 2 is provided.

[0028] Reference Figure 3 and Figure 4 The valve body 1 is equipped with a sealing structure 3, which mainly consists of two sealing rings 31. The two sealing rings 31 are positioned between the connecting pipe 2 and the valve body 1. Several cylinders 33 are fixedly connected to the sealing rings 31. Several circular grooves 32 are respectively formed on the valve body 1 and the connecting pipe 2. The grooves 32 are sized to match the cylinders 33. The cylinders 33 are inserted into their corresponding grooves 32, thereby connecting the two sealing rings 31 to the valve body 1 and the connecting pipe 2 respectively. The valve body 1 and the connecting pipe 2 are then connected together via a flange. The sealing ring 31 is pressed between the valve body 1 and the connecting pipe 2 to ensure a tight seal. This avoids the situation where, in current turbine bypass valves, flanges are typically used for connection to pipelines. To ensure a tight seal, a gasket is placed between the two flanges and sealed with sealant. This can lead to difficulties in replacing the sealing ring 31 when its sealing performance deteriorates. A rubber ring 34 is fixedly connected to the sealing ring 31. The outer diameter of the rubber ring 34 matches the inner diameter of the valve body 1 and the connecting pipe 2. When the two rubber rings 34 are pressed against the inner walls of the valve body 1 and the connecting pipe 2 respectively, the connection effect is strengthened. A connecting block 35 is fixedly connected to a sealing ring 31. The connecting block 35 is made of rubber. A connecting groove 36 is opened on a sealing ring 31. The connecting block 35 is adapted to the size of the connecting groove 36. Inserting the connecting block 35 into the connecting groove 36 can strengthen the connection effect between the two sealing rings 31, thereby enhancing the sealing effect. A placement groove 37 is opened on the connecting block 35. Several telescopic rods 38 are fixedly connected in the placement groove 37. When the connecting block After the connecting block 35 is inserted into the connecting groove 36, several telescopic rods 38 can be stretched, so that the two ends of the telescopic rods 38 press the connecting block 35, thereby strengthening the connection effect between the connecting block 35 and the connecting groove 36. A spring 39 is sleeved on the telescopic rod 38, and the two ends of the spring 39 are respectively fixedly connected to the upper and lower inner walls of the placement groove 37. Pressing the connecting block 35 allows the connecting block 35 to be inserted into the connecting groove 36. At this time, the spring 39 is in a contracted state, so the rebound force of the spring 39 acts on the connecting block 35, pressing the connecting block 35 into the connecting groove 36.

[0029] Reference Figure 2The valve body 1 is equipped with a leak-proof structure 4, which mainly consists of a balloon skin 41. All four sides of the balloon skin 41 are glued and fixed to the valve body 1, forming a sealed environment between the balloon skin 41 and the valve body 1. When a leak occurs in the valve body 1, gas enters the cavity enclosed by the balloon skin 41, causing the balloon skin 41 to deform and bulge, facilitating timely detection of the leak. An alarm 47 is fixedly connected to the valve body 1. When a leak occurs in the valve body 1, the alarm 47 sounds an alarm. Two fixed blocks 42 are fixedly connected to the valve body 1. A rotating rod 43 is rotatably connected to both fixed blocks 42. A push rod 44 is fixedly connected to the rotating rod 43. A first contact 45 is fixedly connected to the rotating rod 43. A second contact 46 is fixedly connected to the valve body 1. When the balloon skin 41 inflates, it will push the push rod 44 upward, causing the rotating rod 43 to rotate. This will cause the first contact 45 to contact the second contact 46, thereby connecting the circuit that controls the alarm 47 and reminding staff to perform timely maintenance.

[0030] Working principle: Several cylinders 33 are inserted into corresponding circular grooves 32, thereby connecting two sealing rings 31 to the valve body 1 and the connecting pipe 2 respectively. The valve body 1 and the connecting pipe 2 are then connected together by a flange. The two sealing rings 31 are pressed between the valve body 1 and the connecting pipe 2 to ensure sealing. This avoids the situation where, in current gas turbine bypass valves, flanges are usually used for connection to pipelines. To ensure sealing, gaskets are placed between the two flanges and sealed with sealant. This can lead to difficulties in replacing the sealing rings 31 when their sealing performance deteriorates. When connecting the sealing rings 31, two rubber rings 34 abut against the inner walls of the valve body 1 and the connecting pipe 2 respectively to enhance the connection. Inserting the connecting block 35 into the connecting groove 36 further enhances the connection between the two sealing rings 31, thereby improving the sealing effect. When the connecting block 35 is inserted into the connecting groove 36... Afterwards, several telescopic rods 38 can be stretched, causing the two ends of the telescopic rods 38 to press against the connecting blocks 35, thereby strengthening the connection effect between the connecting blocks 35 and the connecting grooves 36. Pressing against the connecting blocks 35 allows them to be inserted into the connecting grooves 36. At this time, the spring 39 is in a contracted state, so the rebound force of the spring 39 acts on the connecting blocks 35, pressing them into the connecting grooves 36. A sealed environment is formed between the balloon skin 41 and the valve body 1. When the valve body 1 leaks, gas will enter the cavity enclosed by the balloon skin 41, causing the balloon skin 41 to deform and bulge, making it easier to detect leaks in time. When the valve body 1 leaks, the alarm 47 will sound an alarm. When the balloon skin 41 bulges, it will push the push rod 44 upward, causing the rotating rod 43 to rotate, thereby making the first contact 45 contact the second contact 46, thus connecting the circuit that controls the alarm 47, which can remind staff to perform timely maintenance.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A leak-proof turbine bypass valve, comprising a valve body (1), characterized in that: A connecting pipe (2) is provided on the valve body (1), and a sealing structure (3) is provided on the valve body (1). The sealing structure (3) is mainly composed of two sealing rings (31). The two sealing rings (31) are located between the connecting pipe (2) and the valve body (1). Several cylinders (33) are fixedly connected to the sealing rings (31). Several circular grooves (32) are respectively opened on the valve body (1) and the connecting pipe (2). The size of the circular grooves (32) is adapted to the cylinders (33).

2. The leak-proof turbine bypass valve according to claim 1, characterized in that: A rubber ring (34) is fixedly connected to the sealing ring (31), and the outer diameter of the rubber ring (34) is adapted to the inner diameter of the valve body (1) and the connecting pipe (2).

3. The leak-proof turbine bypass valve according to claim 2, characterized in that: A connecting block (35) is fixedly connected to one of the sealing rings (31). The connecting block (35) is made of rubber. A connecting groove (36) is provided on one of the sealing rings (31). The size of the connecting block (35) and the connecting groove (36) are adapted to each other.

4. The leak-proof turbine bypass valve according to claim 3, characterized in that: The connecting block (35) is provided with a placement groove (37), and a number of telescopic rods (38) are fixedly connected in the placement groove (37).

5. The leak-proof turbine bypass valve according to claim 4, characterized in that: A spring (39) is fitted on the telescopic rod (38), and the two ends of the spring (39) are respectively fixedly connected to the upper and lower inner walls of the placement groove (37).

6. The leak-proof turbine bypass valve according to claim 5, characterized in that: The valve body (1) is provided with a leak-proof structure (4), which is mainly composed of a balloon skin (41), and the four sides of the balloon skin (41) are all pasted and fixed on the valve body (1).

7. The leak-proof turbine bypass valve according to claim 6, characterized in that: An alarm (47) is fixedly connected to the valve body (1).

8. The leak-proof turbine bypass valve according to claim 7, characterized in that: Two fixing blocks (42) are fixedly connected to the valve body (1). A rotating rod (43) is rotatably connected to both fixing blocks (42). A push rod (44) is fixedly connected to the rotating rod (43). A first contact point (45) is fixedly connected to the rotating rod (43). A second contact point (46) is fixedly connected to the valve body (1).

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