Fuel conveying device for power plant

Abstract

The fuel conveying device for the power plant comprises a conveying pipe, the upper end of the conveying pipe is connected with a connecting pipe through threads, the lower end of the conveying pipe is fixedly connected with a discharging port in a sleeved mode, and the connecting pipe and the conveying pipe are jointly provided with a sealing mechanism capable of enhancing the sealing performance of the connecting position of the conveying device. The sealing mechanism comprises a pressing ring, a sealing gasket, a clamping groove, a protruding block and an elastic rod, the pressing ring, the sealing gasket, the clamping groove, the protruding block, the elastic rod and other parts are designed to be used in cooperation, threaded connection can be generated between the connecting pipe and the conveying pipe, the pressing ring can extrude the sealing gasket in the moving process of the connecting pipe, the sealing gasket can deform, and therefore the sealing effect is improved. The diameter of the protruding block is slightly smaller than that of the clamping groove, and the elastic rod drives the protruding block to slide into the clamping groove formed in the pressing ring, so that the situation that the sealing performance of the connecting position becomes poor due to the fact that threaded connection between the connecting pipe and the conveying pipe is loosened can be effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a conveying device technical field, concretely is a fuel conveying device for power plant. BACKGROUND

[0002] The fuel conveying device of the gas power plant is a key component of the operation of the gas power plant, which is responsible for safely and efficiently conveying fuel from the storage facility to the gas turbine, ensuring the normal operation and efficient power generation of the power plant. The design and operation of such devices directly affect the efficiency and safety of the power plant.

[0003] The prior art provides a fuel conveying device for a power plant (publication number: CN221300502U), which discloses a gas conveying device, comprising: a gas conveying pipe, a quick-connection type pressure regulating and shunt conveying structure is installed on the gas conveying pipe; the quick-connection type pressure regulating and shunt conveying structure comprises: a pressure regulating valve, a pair of fixed supports, a pair of connecting shunt pipes, a pair of pressure gauges and a pair of quick-connection sealing assemblies, the utility model relates to the technical field of gas conveying equipment, and the beneficial effects of the case are: the existing gas conveying pipeline is directly connected in a threaded buckle connection mode, a pair of external threaded conveying pipes are connected together through the threaded buckle, with the increase of the use time, the connection is easy to oxidize and corrode, which affects the air tightness of the connection and is prone to danger.

[0004] However, the conventional fuel conveying device for power plants still has the following defects:

[0005] The connecting pipe is usually connected to the conveying pipe, and then the conveying pipe is used to convey the gas. The conveying pipe is usually connected by threads, and this connection method has poor air tightness. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a fuel conveying device for power plants. The utility model is used in combination with a compression ring, a sealing gasket, a clamping groove, a protruding block and an elastic rod, and the connecting pipe is connected to the conveying pipe by threads. During the movement of the conveying pipe, the compression ring will squeeze the sealing gasket, so that the sealing gasket is squeezed, and the air tightness is improved, thereby solving the problems in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a fuel conveying device for power plants, comprising a conveying pipe, the upper end of the conveying pipe is connected to a connecting pipe by threads, the lower end of the conveying pipe is fixedly sleeved with a discharge port, and the connecting pipe and the conveying pipe are provided with a sealing mechanism that can enhance the sealing performance of the connection part of the conveying device.

[0008] The sealing mechanism comprises a pressing ring, a sealing gasket, a clamping groove, a protruding block, and an elastic rod, the outer side of the connecting pipe is fixedly connected with the pressing ring, the lower end of the pressing ring is fixedly connected with the sealing gasket, the pressing ring is provided with the clamping groove, the clamping groove is slidably connected with the protruding block, the protruding block is fixedly connected with the elastic rod, and the elastic rod is fixedly connected with the upper end of the conveying pipe.

[0009] Preferably, the number of the clamping grooves is several, and the several clamping grooves are arranged in an annular array on the outer side of the pressing ring.

[0010] Preferably, the sealing gasket is slidably connected with the outer side of the connecting pipe, and the sealing gasket is in contact with the upper end of the conveying pipe.

[0011] Preferably, a moisture absorption plate is slidably connected to the inner wall of the discharge port, a groove is formed in the inner wall of the discharge port, and an installation mechanism for dismounting the moisture absorption plate is arranged on the discharge port and the moisture absorption plate.

[0012] Preferably, the installation mechanism comprises a clamping pin, an installation block, a pulling block, an installation ring, and a spring, the clamping pin is slidably connected in the groove, the lower end of the moisture absorption plate is fixedly connected with the installation block, the clamping pin is fixedly connected with the pulling block, the outer side of the clamping pin is fixedly connected with the installation ring, and the outer side of the clamping pin is sleeved with the spring.

[0013] Preferably, one end of the spring is fixedly connected with the installation block, and the other end of the spring is fixedly connected with the installation ring.

[0014] Preferably, the clamping pin is slidably connected in the installation block, and the pulling block is in contact with the side surface of the installation block.

[0015] Preferably, the number of the installation blocks is two, and the two installation blocks are symmetrically arranged at the lower end of the moisture absorption plate.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model discloses a sealing mechanism of conveying pipe, which comprises a connecting pipe and a conveying pipe, the outer side of the connecting pipe is fixedly connected with a pressing ring, the lower end of the pressing ring is fixedly connected with a sealing gasket, the pressing ring is provided with a clamping groove, the clamping groove is slidably connected with a protruding block, the protruding block is fixedly connected with an elastic rod, and the elastic rod is fixedly connected with the upper end of the conveying pipe. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a sealing mechanism schematic diagram of the utility model;

[0020] Figure 3 For Figure 3 the enlarged view of the A area in the middle;

[0021] Figure 4 For the internal structure of the discharge port of the utility model schematic diagram;

[0022] Figure 5 For Figure 4 the enlarged view of the B area in the middle;

[0023] Figure 6 For the installation mechanism schematic diagram of the utility model;

[0024] Figure 7 For Figure 6 the enlarged view of the C area in the middle.

[0025] In the figure: 1, conveying pipe; 2, connecting pipe; 3, sealing mechanism; 31, compression ring; 32, sealing pad; 33, clamping groove; 34, protruding block; 35, elastic rod; 4, discharge port; 5, moisture absorption plate; 6, recess; 7, installation mechanism; 71, clamping pin; 72, mounting block; 73, pull block; 74, mounting ring; 75, spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-7 , the utility model provides a kind of technical scheme: a fuel conveying device for power plant, including conveying pipe 1, the upper end of conveying pipe 1 is connected with connecting pipe 2 by screw thread, the lower end of conveying pipe 1 is fixedly sleeved with discharge port 4, connecting pipe 2 and conveying pipe 1 are provided with sealing mechanism 3 that can strengthen the sealing property of the connection of this conveying device on it;

[0028] Sealing mechanism 3 includes compression ring 31, sealing pad 32, clamping groove 33, protruding block 34, elastic rod 35, the outer side of connecting pipe 2 is fixedly connected with compression ring 31, the lower end of compression ring 31 is fixedly connected with sealing pad 32, clamping groove 33 is set in compression ring 31, protruding block 34 is slidably connected in clamping groove 33, elastic rod 35 is fixedly connected on protruding block 34, and elastic rod 35 is fixedly connected to the upper end of conveying pipe 1.

[0029] The utility model discloses a sealing mechanism 3 is set up, and each component is used in cooperation, and the threaded motion between connecting pipe 2 and conveying pipe 1 can make connecting pipe 2 move, and the compression ring 31 can extrude the sealing washer 32 in the moving process of connecting pipe 2, and the sealing washer 32 is extruded, and the sealing washer 32 is deformed now, can improve the sealing property of sealing washer 32, and the protruding block 34 and the elastic rod 35 are extruded constantly in the rotating process of connecting pipe 2, and the diameter of protruding block 34 is slightly less than the diameter of the clamping groove 33, and finally the protruding block 34 can be pressed into the clamping groove 33 that is set up in the compression ring 31, can limit connecting pipe 2, can effectively prevent the sealing property of connecting pipe 2 and conveying pipe 1 between threaded connection from loosening and leading to the connection place.

[0030] The number of clamping grooves 33 is several, and the several clamping grooves 33 are annularly arranged on the outer side of the compression ring 31.

[0031] The plurality of clamping grooves 33 facilitate the sliding of the protruding block 34, thereby limiting the connecting pipe 2.

[0032] The sealing washer 32 is slidably connected to the outer side of the connecting pipe 2, and the sealing washer 32 is in contact with the upper end of the conveying pipe 1.

[0033] The sealing washer 32 is extruded by the compression ring 31, and the sealing washer 32 is deformed by the pressure, thereby greatly improving the sealing property of the sealing washer 32.

[0034] A moisture absorption plate 5 is slidably connected to the inner wall of the discharge port 4, a groove 6 is formed in the inner wall of the discharge port 4, and an installation mechanism 7 for dismounting the moisture absorption plate 5 is arranged on the discharge port 4 and the moisture absorption plate 5.

[0035] The moisture absorption plate 5 can adsorb the tiny particles contained in the natural gas, prevent impurities from entering the power generation device, and affect the service life of the power generation device.

[0036] The installation mechanism 7 includes a clamping pin 71, a mounting block 72, a pulling block 73, a mounting ring 74, and a spring 75. The clamping pin 71 is slidably connected in the groove 6, the mounting block 72 is fixedly connected to the lower end of the moisture absorption plate 5, the pulling block 73 is fixedly connected to the clamping pin 71, the mounting ring 74 is fixedly connected to the outer side of the clamping pin 71, and the spring 75 is sleeved on the outer side of the clamping pin 71.

[0037] The utility model discloses a sealing mechanism 3 is set up, and each component is used in cooperation, and the threaded motion between connecting pipe 2 and conveying pipe 1 can make connecting pipe 2 move, and the compression ring 31 can extrude the sealing washer 32 in the moving process of connecting pipe 2, and the sealing washer 32 is extruded, and the sealing washer 32 is deformed now, can improve the sealing property of sealing washer 32, and the protruding block 34 and the elastic rod 35 are extruded constantly in the rotating process of connecting pipe 2, and the diameter of protruding block 34 is slightly less than the diameter of the clamping groove 33, and finally the protruding block 34 can be pressed into the clamping groove 33 that is set up in the compression ring 31, can limit connecting pipe 2, can effectively prevent the sealing property of connecting pipe 2 and conveying pipe 1 between threaded connection from loosening and leading to the connection place.

[0038] One end of the spring 75 is fixedly connected to the mounting block 72, and the other end of the spring 75 is fixedly connected to the mounting ring 74.

[0039] During the process that the pull block 73 drives the catch pin 71 to slide out of the groove 6 in the discharge port 4, the pull block 73 will stretch the spring 75, so that the spring 75 generates elastic force, and then the pull block 73 can be reset under the elastic action of the spring 75, so that the catch pin 71 is reset.

[0040] The catch pin 71 is slidingly connected in the mounting block 72, and the pull block 73 is in contact with the side surface of the mounting block 72.

[0041] By sliding the catch pin 71 in the mounting block 72, the mounting block 72 can guide the catch pin 71 to a certain extent, so as to prevent the catch pin 71 from deviating during movement.

[0042] The number of the mounting block 72 is two, and the two mounting blocks 72 are symmetrically distributed at the lower end of the moisture absorption plate 5.

[0043] In specific use, by the threaded movement between the connecting pipe 2 and the conveying pipe 1, the connecting pipe 2 can be moved, and in the movement process of the connecting pipe 2, the compression ring 31 will extrude the sealing gasket 32, so that the sealing gasket 32 is extruded, and at this time, the sealing gasket 32 is deformed, which can improve the sealing performance of the sealing gasket 32, and in the rotating process of the connecting pipe 2, the protrusion 34 and the elastic rod 35 are continuously extruded, and the diameter of the protrusion 34 is slightly smaller than the diameter of the clamping groove 33, and finally the protrusion 34 will be pressed into the clamping groove 33 opened in the compression ring 31, which can limit the connecting pipe 2, and can effectively prevent the sealing performance of the connection part from being deteriorated due to loosening of the threaded connection between the connecting pipe 2 and the conveying pipe 1.

[0044] And by the filtering of the natural gas through the moisture absorption plate 5, part of the water contained in the natural gas can be adsorbed, so as to realize the drying of the natural gas, and when the moisture absorption plate 5 needs to be replaced, the pull block 73 is pulled to drive the catch pin 71 to move and slide out of the groove 6 opened in the discharge port 4, at this time, the limiting of the moisture absorption plate 5 is released, and at this time, the moisture absorption plate 5 is removed by moving, and after the new moisture absorption plate 5 is placed in the appropriate position of the discharge port 4, the pull block 73 is loosened, and during the process that the pull block 73 drives the catch pin 71 to slide out of the groove 6, the pull block 73 will stretch the spring 75, so that the spring 75 generates elastic force, and then the pull block 73 can be reset under the elastic action of the spring 75, so that the catch pin 71 is reset, and the catch pin 71 is slid into the groove 6 again, at this time, the replacement is completed.

[0045] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fuel delivery device for a power plant, comprising a delivery pipe (1), characterized in that: The upper end of the conveying pipe (1) is connected to a connecting pipe (2) via a thread, and the lower end of the conveying pipe (1) is fixedly sleeved with a discharge port (4). The connecting pipe (2) and the conveying pipe (1) are both provided with a sealing mechanism (3) that can enhance the sealing performance of the connection of the conveying device; The sealing mechanism (3) comprises a pressure ring (31), a sealing gasket (32), a clamping groove (33), a convex block (34), and an elastic rod (35). The outer side of the connecting pipe (2) is fixedly connected to the pressure ring (31), the lower end of the pressure ring (31) is fixedly connected to the sealing gasket (32), the pressure ring (31) is provided with a clamping groove (33), the clamping groove (33) is slidably connected to the convex block (34), the convex block (34) is fixedly connected to the elastic rod (35), and the elastic rod (35) is fixedly connected to the upper end of the conveying pipe (1).

2. A fuel delivery device for a power plant according to claim 1, characterized in that: There are a plurality of the card slots (33), and the plurality of card slots (33) are distributed on the outside of the pressure ring (31) in an annular array.

3. The fuel delivery device for a power plant according to claim 1, characterized in that: The sealing gasket (32) is slidably connected to the outside of the connecting pipe (2), and the sealing gasket (32) is in contact with the upper end of the conveying pipe (1).

4. The fuel delivery device for a power plant according to claim 1, characterized in that: A moisture absorption plate (5) is slidably connected to the inner wall of the discharge port (4), a groove (6) is provided on the inner wall of the discharge port (4), and a mounting mechanism (7) for disassembling the moisture absorption plate (5) is provided on both the discharge port (4) and the moisture absorption plate (5).

5. A fuel delivery device for a power plant according to claim 4, characterized in that: The mounting mechanism (7) comprises a bayonet (71), a mounting block (72), a pull block (73), a mounting ring (74), and a spring (75); the bayonet (71) is slidably connected in the groove (6); the mounting block (72) is fixedly connected to the lower end of the moisture absorption plate (5); the pull block (73) is fixedly connected to the bayonet (71); the outer side of the bayonet (71) is fixedly connected to the mounting ring (74); and the outer side of the bayonet (71) is sleeved with a spring (75).

6. A fuel delivery device for a power plant according to claim 5, characterized in that: One end of the spring (75) is fixedly connected to the mounting block (72), and the other end of the spring (75) is fixedly connected to the mounting ring (74).

7. The fuel delivery device for a power plant according to claim 5, characterized in that: A latch (71) is slidably connected inside the mounting block (72), and the pulling block (73) contacts the side surface of the mounting block (72).

8. The fuel delivery device for a power plant according to claim 5, characterized in that: The number of the mounting blocks (72) is two, and the two mounting blocks (72) are symmetrically distributed at the lower end of the moisture absorption plate (5).

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