An overvoltage absorption device for an excitation regulator in a gas power plant

Abstract

The utility model relates to the technical field of gas power generation assembly, concretely is a kind of overvoltage absorption device of excitation regulator in gas power generation, including overvoltage absorber and series gasket, the front end frame of overvoltage absorber is equipped with storage square groove and combined series groove, and the frame of overvoltage absorber is inlayed and fixed with series gasket, the outer surface center of series gasket is provided with locating cylinder, and locating cylinder is located inside storage square groove and combined series groove.The closest point of lead wire outside overvoltage absorber, after the closure of pressing plate, pressing plate drives fixed rod to extrude lead wire, while lead wire is supported and limited by insulating column, while the positioning groove set on rubber sleeve, it is convenient to adhere with lead wire, keep stable, while according to fixed rod, it is convenient to manually pull pressing plate, also can carry out split work without tool.

Description

Technical Field

[0001] This utility model relates to the field of gas-fired power generation components, and in particular to an overvoltage absorption device for an excitation regulator in gas-fired power generation. Background Technology

[0002] Gas-fired power generation components refer to the components of a complete equipment system that ultimately converts the chemical energy of fuel into electrical energy. These components include overvoltage absorption devices in the excitation regulator, which protect the critical excitation regulator and continuously monitor the voltage applied across it.

[0003] In the existing combination process, it is necessary to connect between two specific points in the excitation regulator circuit to form an effective parallel protection path. After the connection is made, the parallel connection point on the overvoltage absorption device and the lead connection point on the excitation regulator circuit are located at the closest point outside the overvoltage absorption device, which cannot be positioned, and thus the line will bend due to pulling.

[0004] Therefore, this invention addresses the problem that the nearest point on the outside of the existing overvoltage absorption device cannot be located, which can lead to bending of the line due to pulling. Utility Model Content

[0005] To overcome the problem that the overvoltage absorption device of the excitation regulator in common gas-fired power generation is located at the nearest point outside the overvoltage absorption device, which cannot be positioned and will bend due to line pulling.

[0006] The technical solution of this utility model is as follows: an overvoltage absorption device for an excitation regulator in a gas-fired power generation system, comprising an overvoltage absorber and a series gasket. The front edge of the overvoltage absorber is provided with a receiving square groove and a combined series groove, and a series gasket is embedded and fixed inside the edge of the overvoltage absorber. A positioning column is provided at the center of the outer surface of the series gasket, and the positioning column is located inside the receiving square groove and the combined series groove. An insulating column is embedded and fixedly installed on the front surface of the overvoltage absorber. A pressure plate is installed inside the receiving square groove, and a connecting shaft is installed through the rear end of the pressure plate, and the end of the connecting shaft is connected to the overvoltage absorber.

[0007] Preferably, the length and width of the receiving square groove are greater than the length and width of the combined series groove, and the length and width of the combined series groove are less than the length and width of the pressure plate.

[0008] Preferably, the connection between the series gasket and the positioning column is fixed by electric welding, and the length of the positioning column is three-half of the transverse depth of the combined series groove, and the end edge of the positioning column is chamfered.

[0009] Preferably, the pressure plate is connected to the overvoltage absorber via a connecting shaft in a rotatable manner, and the pressure plate is connected to the receiving square groove in a snap-fit ​​manner, and the thickness of the pressure plate is equal to the lateral depth of the receiving square groove.

[0010] Preferably, the pressure plate has a limit hole, and a fixing rod is fixedly installed on the outer surface of the frame of the pressure plate. A rubber sleeve is sleeved on the outer side of the fixing rod, and a positioning groove is opened on the outer surface of the rubber sleeve.

[0011] Preferably, the limiting through hole and the positioning column are connected by a snap-fit ​​connection, and the positioning column is made of an elastic material.

[0012] Preferably, the diameter of the rubber sleeve is greater than the thickness of the pressure plate, and the positioning groove on the rubber sleeve is an arc-shaped structure.

[0013] The beneficial effects of this utility model are: The connector area of ​​the lead wire can be moved into the combined series groove and combined with the positioning column, so that the hole on the connector aligns with the positioning column for initial positioning. At the same time, the positioning column engages with the upper limit through hole of the pressure plate, which facilitates the subsequent pressure plate to squeeze the connector and series gasket tightly together. The positioning column end is inserted into the limit through hole to fix the position of the pressure plate. The operation is convenient and simple. The lead wire located on the outside of the overvoltage absorber is closest to the pressure plate. After the pressure plate is closed, the pressure plate drives the fixing rod to squeeze the lead wire. At the same time, the lead wire is supported and restricted by the insulating column. The positioning groove on the rubber sleeve makes it easy to fit with the lead wire and maintain stability. The pressure plate can be manually moved according to the fixing rod, and disassembly can be performed without tools. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention. Figure 2 The diagram shown is a front view of the pressure plate structure of this utility model; Figure 3 The diagram shown is a three-dimensional schematic of the closed pressure plate structure of this utility model; Figure 4 The diagram shown is a three-dimensional structural diagram of the connection between the pressure plate and the rubber sleeve of this utility model. Figure 5 The diagram shown is a three-dimensional structural diagram of the separation of the pressure plate and the rubber sleeve of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1. Overvoltage absorber; 2. Receiving square groove; 3. Combined series groove; 4. Series gasket; 5. Positioning column; 6. Insulating column; 7. Pressure plate; 8. Connecting shaft; 9. Limiting through hole; 10. Fixing rod; 11. Rubber sleeve; 12. Positioning groove. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-5 This utility model provides a technical solution: an overvoltage absorption device for an excitation regulator in a gas-fired power generation system, comprising an overvoltage absorber 1 and a series gasket 4. The front edge of the overvoltage absorber 1 is provided with a receiving square groove 2 and a combined series groove 3, and the series gasket 4 is embedded and fixed inside the edge of the overvoltage absorber 1. A positioning column 5 is provided at the center of the outer surface of the series gasket 4, and the positioning column 5 is located inside the receiving square groove 2 and the combined series groove 3. An insulating column 6 is embedded and fixedly installed on the front surface of the overvoltage absorber 1. A pressure plate 7 is installed inside the receiving square groove 2, and a connecting shaft 8 is installed through the rear end of the pressure plate 7, and the end of the connecting shaft 8 is connected to the overvoltage absorber 1.

[0018] The length and width of the receiving square groove 2 are greater than the length and width of the combined series groove 3, and the length and width of the combined series groove 3 are less than the length and width of the pressure plate 7, which facilitates the subsequent combination of the pressure plate 7 and facilitates the pressure plate 7 to squeeze and connect the lead wire connectors.

[0019] The connection between the series gasket 4 and the positioning column 5 is fixed by electric welding. The length of the positioning column 5 is three-half of the transverse depth of the combined series groove 3. The end edge of the positioning column 5 is chamfered. The length of the positioning column 5 facilitates its extension into the receiving square groove 2, so as to be combined with the limiting through hole 9 laterally.

[0020] The pressure plate 7 is connected to the overvoltage absorber 1 by a rotating connection via the connecting shaft 8, and the pressure plate 7 is connected to the storage square groove 2 by a snap-fit ​​connection. The thickness of the pressure plate 7 is equal to the lateral depth of the storage square groove 2, which facilitates the rotation of the pressure plate 7 to open or close, and the pressure plate 7 can be completely stored in the storage square groove 2.

[0021] The pressure plate 7 has a limiting through hole 9, and a fixing rod 10 is fixedly installed on the outer surface of the frame of the pressure plate 7. A rubber sleeve 11 is sleeved on the outside of the fixing rod 10, and a positioning groove 12 is opened on the outer surface of the rubber sleeve 11. The limiting through hole 9 and the positioning column 5 are connected by a snap-fit ​​connection. The positioning column 5 is made of elastic material. By snapping the limiting through hole 9 and the positioning column 5, the pressure plate 7 can be positioned after being closed to prevent it from loosening easily. Because the positioning column 5 is made of elastic material, it is easy to squeeze and snap-fit. It can be opened later by prying it up with a tool.

[0022] The diameter of the rubber sleeve 11 is greater than the thickness of the pressure plate 7, and the positioning groove 12 on the rubber sleeve 11 is set in an arc shape. The pressure plate 7 can drive the rubber sleeve 11 to squeeze and position the lead wire at the nearest point on the outside of the overvoltage absorber 1 through the positioning groove 12, thereby reducing the impact of subsequent pulling of the lead wire and causing bending.

[0023] Working principle: According to Figures 1-5 First, the overvoltage absorber 1 can be installed in a suitable position inside the excitation regulator of the gas generator and fixed. Then, the lead wires that need to be connected in series inside the excitation regulator are combined with the overvoltage absorber 1. After the lead wire joints are moved into the combined series groove 3, they are combined with the positioning column 5 through the holes on the joints and at the same time, they are attached to the series gasket 4. Next, the lead wire is swung so that it is perpendicular to the overvoltage absorber 1 and the lead wire is in contact with the outer surface of the insulating column 6. The pressure plate 7 is then pressed and moved. The pressure plate 7 is closed through the connecting shaft 8 so that the pressure plate 7 is engaged into the inside of the receiving square groove 2. At the same time, the limiting through hole 9 on the pressure plate 7 is pressed and engaged with the positioning column 5 to fix it. The pressure plate 7 presses the lead wire connector in the combined series groove 3 so that it is pressed and adhered to the series gasket 4 to achieve the connection. During the closing process of the pressure plate 7, the pressure plate 7 can drive the fixing rod 10 and the rubber sleeve 11 to move. The fixing rod 10 squeezes the lead wire and fixes it through the insulating post 6. At the same time, the positioning groove 12 provided on the rubber sleeve 11 fits with the lead wire to limit the movement and maintain the stability of the squeezing and positioning. This reduces the phenomenon of bending and damage to the lead wire and lead wire joint area caused by the movement of the lead wire.

[0024] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An overvoltage absorption device for an excitation regulator in a gas-fired power generation system, comprising an overvoltage absorber (1) and series gaskets (4), characterized in that: The front edge of the overvoltage absorber (1) is provided with a receiving square groove (2) and a combined series groove (3), and a series gasket (4) is embedded and fixed inside the frame of the overvoltage absorber (1). A positioning column (5) is provided at the center of the outer surface of the series gasket (4), and the positioning column (5) is located inside the receiving square groove (2) and the combined series groove (3). An insulating column (6) is embedded and fixedly installed on the front surface of the overvoltage absorber (1). A pressure plate (7) is installed inside the receiving square groove (2), and a connecting shaft (8) is installed through the rear end of the pressure plate (7), and the end of the connecting shaft (8) is connected to the overvoltage absorber (1).

2. The overvoltage absorption device for an excitation regulator in a gas-fired power generation system according to claim 1, characterized in that: The length and width of the storage square groove (2) are greater than the length and width of the combined series groove (3), and the length and width of the combined series groove (3) are less than the length and width of the pressure plate (7).

3. The overvoltage absorption device for an excitation regulator in a gas-fired power generation system according to claim 1, characterized in that: The connection between the series gasket (4) and the positioning column (5) is fixed by electric welding, and the length of the positioning column (5) is three-half of the transverse depth of the combined series groove (3), and the end edge of the positioning column (5) is chamfered.

4. The overvoltage absorption device for an excitation regulator in a gas-fired power generation system according to claim 1, characterized in that: The pressure plate (7) is connected to the overvoltage absorber (1) by a rotating connection via a connecting shaft (8), and the pressure plate (7) is connected to the receiving square groove (2) by a snap-fit ​​connection. The thickness of the pressure plate (7) is equal to the lateral depth of the receiving square groove (2).

5. The overvoltage absorption device for an excitation regulator in a gas-fired power generation system according to claim 1, characterized in that: The pressure plate (7) has a limit hole (9) and a fixing rod (10) is fixedly installed on the outer surface of the frame of the pressure plate (7). A rubber sleeve (11) is sleeved on the outer side of the fixing rod (10) and a positioning groove (12) is opened on the outer surface of the rubber sleeve (11).

6. The overvoltage absorption device for an excitation regulator in a gas-fired power generation system according to claim 5, characterized in that: The connection between the limiting through hole (9) and the positioning column (5) is a snap-fit ​​connection, and the positioning column (5) is made of elastic material.

7. An overvoltage absorption device for an excitation regulator in a gas-fired power generation system according to claim 5, characterized in that: The diameter of the rubber sleeve (11) is greater than the thickness of the pressure plate (7), and the positioning groove (12) on the rubber sleeve (11) is an arc-shaped structure.

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