Thermal steam trap of thermal power plant steam turbine

Abstract

The thermal steam trap comprises a steam trap body, a connecting pipe and a lifting mechanism, a first mounting box is welded to the outer wall of the top of the steam trap body, and a motor, a first lead screw, a pulling plate, a buckle plate, a buckle head, an ascending sliding groove, an arc-shaped groove and a first matching rod are arranged, so that when the connecting pipe is in butt joint with the steam trap body, the connecting pipe is in butt joint with the steam trap body; the motor is turned on to enable the first lead screw to rotate, the pulling plate is driven to move backwards to fasten the connecting pipe and the steam trap body, when the pulling plate moves forwards, the first matching rod drives the buckling plate to tilt according to the track of the ascending sliding groove, locking is cancelled, and the effect of convenient mounting and dismounting is achieved. The rapid installation and butt joint of the steam trap body and the connecting pipe can be achieved, meanwhile, the first pulling plate, the second pulling plate, the second lead screw, the bottom block and the second rotatable lead screw are arranged, a third matching rod at the top of the bottom block drives the second pulling plate to rotate, the second pulling plate drives the first pulling plate to rotate, the fixing plates are close to each other, and the steam trap body is rapidly fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of steam turbines, in particular to a thermal steam trap for a thermal power plant steam turbine. Background Art

[0002] In modern times, industrial production activities are becoming more and more frequent. In many industrial production processes, many pipelines are often needed to transport liquids and gases. Many joints in the pipelines need to be adjusted by steam traps. Steam traps are called steam traps, also called automatic drainers or condensate drainers. They are installed at the terminal of the steam-heated pipeline to continuously discharge condensate out of the pipeline.

[0003] After searching, the Chinese patent publication number CN220205389U discloses a thermal steam trap for a steam turbine in a thermal power plant, including: a steam trap body, a limiting mechanism, a connecting pipe, a fixing ring, a water pipe, a limiting ring, a sealing ring, and a screw. The steam trap body is located in the limiting mechanism. The limiting mechanism is composed of an electric telescopic rod, a limiting plate, a supporting plate, a fixing block, and a fixing bolt. The top surface of the electric telescopic rod is connected to the limiting plate. The top surface of the limiting plate is open, and the steam trap body is arranged inside.

[0004] The above patent has the following deficiencies: when in use, the above device is raised and lowered and limited by a limiting mechanism, and then multiple sets of screws and nuts are tightened to achieve fixation, and the fixing bolts must be removed to be completely fixed. This connection method is relatively cumbersome, and the installation and removal of many bolts is relatively inconvenient.

[0005] Therefore, a thermal steam trap for a steam turbine in a thermal power plant is proposed. Utility Model Content

[0006] In view of this, the embodiments of the present utility model hope to provide a thermal steam trap for a steam turbine in a thermal power plant to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the embodiment of the utility model is achieved as follows: it includes a steam trap body, a connecting pipe and a lifting mechanism, a mounting box 1 is fixedly installed on the top outer wall of the steam trap body, a transverse slider is slidably connected to the inner side wall of the mounting box 1, a spring 2 is fixedly installed between the transverse slider and the inner wall of the mounting box 1, a buckle plate is rotatably connected to the outer side wall of the transverse slider, an arc groove is provided on the outer side wall of the buckle plate, a rising groove is provided on the inner side wall of the mounting box 1, a matching rod 1 is slidably connected between the rising groove and the inner wall of the arc groove, a buckle head is fixedly installed on the outer side wall of the buckle plate, a motor is fixedly installed on the inner side wall of the mounting box 1, the output end of the motor is connected to a lead screw 1 through a coupling, a pulling plate is slidably connected to the inner side wall of the mounting box 1, and the pulling plate is connected to the lead screw 1 through a nut.

[0008] In some embodiments, a fixed block is fixedly installed on the outer side wall of the steam trap body, and the fixed block cooperates with a lifting mechanism. The lifting mechanism includes a rising seat, a base, and an installation box three. The installation box three is fixedly installed on the outer side wall of the base, and a side guide plate is fixedly installed on the top outer wall of the base. The rising seat is slidably connected to the outer side wall on the opposite side of the side guide plate.

[0009] In some embodiments, a connecting rod is rotatably connected to the outer wall of the bottom of the rising seat, an electric push rod is fixedly installed on the inner wall of the bottom of the installation box, a sliding block is slidably connected to the inner wall of the bottom of the rising seat, the connecting rod is rotatably connected to one end of the sliding block, the sliding block is connected to the telescopic end of the electric push rod, and a fixed plate is slidably connected to the inner wall of the rising seat.

[0010] In some embodiments, a control component is provided inside the rising seat, and the control component is connected to a fixed plate. An insertion rod is fixedly installed on an outer side wall of the fixed plate, and the insertion rod cooperates with a fixed block.

[0011] In some embodiments, an installation box 2 is fixedly installed on the outer side wall of the installation box 1, a pressure sensor and a control module are fixedly installed on the inner side wall of the installation box 2, and an extrusion rod is slidably connected to the inner wall of the steam trap body.

[0012] In some embodiments, a mounting tube is fixedly installed on the outer side wall of the steam trap body, a spring 1 is fixedly installed between the extrusion rod and the inner wall of the mounting tube, and the other end of the extrusion rod is in contact with the pressure sensor.

[0013] In some embodiments, the control component includes a pull plate 2 and a screw 2. The pull plate 2 is rotatably connected to the top inner wall of the rising seat. The inner wall of the pull plate 2 is rotatably connected to the pull plate 1. The screw 2 is rotatably connected to the inner wall of the rising seat. The bottom inner wall of the rising seat is slidably connected to a bottom block. The bottom block is connected to the screw 2 through a nut.

[0014] In some embodiments, the top outer wall of the bottom block is rotatably connected with a matching rod three, and the matching rod three matches with the inner wall of the pull plate two. The top outer wall of the pull plate one is fixedly installed with a matching rod two, and the matching rod two is connected to the fixed plate.

[0015] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0016] 1. The utility model is provided with a motor, a lead screw, a pulling plate, a buckle plate, a buckle head, an ascending chute, an arc groove, and a matching rod. When the connecting pipe is docked with the steam trap body, the motor can be turned on to rotate the lead screw, driving the pulling plate to move backward to buckle the connecting pipe and the steam trap body. When moving forward, the matching rod drives the buckle plate to tilt up according to the trajectory of the ascending chute, canceling the locking of the connecting pipe and the steam trap body, thereby achieving the effect of facilitating installation and disassembly.

[0017] 2. The utility model is provided with an extrusion rod, a pressure sensor and a control module. When the steam trap body is docked, the extrusion rod contacts the pressure sensor, and the control module can start the motor to fasten the steam trap body and the connecting pipe.

[0018] 3. The utility model is provided with a pull plate 1, a pull plate 2, a screw 2, a bottom block, and a matching rod 3. When the steam trap body needs to be quickly fixed, the screw 2 can be rotated, and the matching rod 3 at the top of the bottom block drives the pull plate 2 to rotate, and the pull plate 2 drives the pull plate 1 to rotate, so that the fixing plates can quickly approach each other to quickly fix the steam trap body.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of a thermal steam trap for a thermal power plant turbine proposed by the utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the second structure of an installation box of a thermal steam turbine thermal drain device for a thermal power plant proposed by the utility model;

[0023] Figure 3 A schematic cross-sectional view of the structure of an installation box of a thermal steam turbine steam trap in a thermal power plant proposed by the utility model;

[0024] Figure 4 This is a schematic diagram of the buckle plate structure of a thermal steam trap for a thermal power plant turbine proposed by the utility model;

[0025] Figure 5This is a schematic diagram of the three-section structure of the installation box of a thermal steam turbine thermal drain of a thermal power plant proposed by the utility model;

[0026] Figure 6 This is a schematic diagram of the bottom structure of a fixed plate of a thermal steam trap for a thermal power plant turbine proposed by the utility model;

[0027] Figure 7 The utility model is a schematic cross-sectional structural diagram of a rising seat of a thermal steam trap for a thermal power plant steam turbine.

[0028] Reference numerals:

[0029] 1. Installation box 1; 2. Rising seat; 3. Base; 4. Side guide plate; 5. Steam trap body; 6. Fixed plate; 7. Insert rod; 8. Fixed block; 9. Connecting pipe; 10. Extrusion rod; 11. Installation cylinder; 12. Spring 1; 13. Pressure sensor; 14. Control module; 15. Installation box 2; 16. Motor; 17. Pull plate; 18. Horizontal slider; 19. Spring 2; 20. Buckle plate; 21. Rising slide; 22. Screw 1; 23. Buckle head; 24. Arc groove; 25. Matching rod 1; 26. Connecting rod; 27. Sliding block; 28. Installation box 3; 29. ​​Electric push rod; 30. Matching rod 2; 31. Pull plate 1; 32. Matching rod 3; 33. Pull plate 2; 34. Screw 2; 35. Bottom block. DETAILED DESCRIPTION

[0030] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0031] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0033] Embodiment 1:

[0034] A thermal steam trap for a steam turbine in a thermal power plant, for the convenience of installation and disassembly, such as Figure 1-7 As shown, it includes a steam trap body 5, a connecting pipe 9 and a lifting mechanism. The outer side wall of the steam trap body 5 is welded with a fixing block 8, and the fixing block 8 cooperates with the lifting mechanism. The top outer wall of the steam trap body 5 is welded with a mounting box 1, and the inner side wall of the mounting box 1 is slidably connected with a transverse slider 18. A spring 2 19 is welded between the transverse slider 18 and the inner wall of the mounting box 1. The outer side wall of the transverse slider 18 is rotatably connected with a buckle plate 20, and the outer side wall of the buckle plate 20 is provided with The arc groove 24, the inner side wall of the installation box 1 is provided with an ascending slide groove 21, the ascending slide groove 21 and the inner wall of the arc groove 24 are slidably connected with a matching rod 25, the outer side wall of the buckle plate 20 is welded with a buckle head 23, the inner side wall of the installation box 1 is fixed with a motor 16 by bolts, the output end of the motor 16 is connected with a lead screw 22 through a coupling, the inner side wall of the installation box 1 is slidably connected with a pulling plate 17, and the pulling plate 17 is connected with the lead screw 22 through a nut;

[0035] When in use, dock the connecting pipe 9 with the steam trap body 5, then turn on the motor 16, and the screw 22 makes the pulling plate 17 slide into the installation box 1, and then cooperates to make the buckle plate 20 move backward while transmitting, and the buckle head 23 at the end of the buckle plate 20 tightly cooperates to pull the connecting pipe 9, so that the connecting pipe 9 and the steam trap body 5 are closely docked. When it needs to be removed, reverse the screw 22 to make the pulling plate 17 slide outward, and the buckle plate 20 slides outward under the pull of the spring 19 on the horizontal slider 18. When sliding outward, the matching rod 25 drives the buckle plate 20 to tilt up according to the trajectory of the rising slide 21, thereby canceling the locking of the connecting pipe 9 and the steam trap body 5.

[0036] The outer side wall of the installation box 1 is welded with an installation box 2 15, the inner side wall of the installation box 2 15 is fixed with a pressure sensor 13 and a control module 14 by bolts, the inner wall of the steam trap body 5 is slidably connected with an extrusion rod 10, the outer side wall of the steam trap body 5 is welded with an installation cylinder 11, a spring 12 is welded between the extrusion rod 10 and the inner wall of the installation cylinder 11, and the other end of the extrusion rod 10 is in contact with the pressure sensor 13;

[0037] When the steam trap body 5 is docked with the connecting pipe 9 , the connecting pipe 9 pushes the extrusion rod 10 , and the other end of the extrusion rod 10 contacts the pressure sensor 13 to produce extrusion, and then the control module 14 controls the motor 16 to lock the steam trap body 5 and the connecting pipe 9 .

[0038] The lifting mechanism includes a rising seat 2, a base 3, and an installation box three 28. The installation box three 28 is welded to the outer side wall of the base 3. A side guide plate 4 is welded to the top outer wall of the base 3. The rising seat 2 is slidably connected to the outer side wall on the opposite side of the side guide plate 4. The bottom outer wall of the rising seat 2 is rotatably connected with a connecting rod 26. The bottom inner wall of the installation box three 28 is fixed with an electric push rod 29 by bolts. The bottom inner wall of the rising seat 2 is slidably connected with a sliding block 27. The connecting rod 26 is rotatably connected to one end of the sliding block 27. The sliding block 27 is connected to the telescopic end of the electric push rod 29. The inner wall of the rising seat 2 is slidably connected with a fixed plate 6. A control component is provided inside the rising seat 2. The control component is connected to the fixed plate 6. The outer side wall of the fixed plate 6 is welded with an insertion rod 7, and the insertion rod 7 cooperates with the fixed block 8.

[0039] The steam trap body 5 can be placed on the top of the rising seat 2, and then the fixing plates 6 are moved toward each other through the control component, and the steam trap body 5 is fixed by the insertion rod 7. When the steam trap body 5 needs to be docked and installed, the electric push rod 29 can be opened to push the sliding block 27 so that the connecting rod 26 pushes the rising seat 2 to rise, thereby realizing the docking and fixation of the steam trap body 5.

[0040] Working principle: When in use, place the steam trap body 5 on the top of the rising seat 2, then use the control component to make the fixed plate 6 move toward each other, fix the steam trap body 5 through the insertion rod 7, turn on the electric push rod 29 to push the sliding block 27 so that the connecting rod 26 pushes the rising seat 2 to rise, then dock the connecting pipe 9 with the steam trap body 5, turn on the motor 16, and the screw 22 makes the pulling plate 17 slide into the installation box 1, and then cooperate to make the buckle plate 20 move backward while transmitting, the buckle head 23 at the end of the buckle plate 20 tightly cooperates to pull the connecting pipe 9, so that the connecting pipe 9 and the steam trap body 5 are closely docked. When it needs to be removed, reverse the screw 22 to make the pulling plate 17 slide outward, and the buckle plate 20 slides outward under the pull of the spring 19 on the horizontal slider 18. When sliding outward, the matching rod 25 drives the buckle plate 20 to tilt up according to the trajectory of the rising slide groove 21, and cancels the locking of the connecting pipe 9 and the steam trap body 5.

[0041] Embodiment 2:

[0042] A thermal steam trap for a steam turbine in a thermal power plant, such as Figure 1-7As shown; this embodiment makes the following supplements on the basis of embodiment 1: the control component includes a pull plate 2 33 and a lead screw 2 34, the pull plate 2 33 is rotatably connected to the inner wall of the top of the rising seat 2, the inner wall of the pull plate 2 33 is rotatably connected to the pull plate 1 31, the lead screw 2 34 is rotatably connected to the inner wall of the rising seat 2, the bottom inner wall of the rising seat 2 is slidably connected to a bottom block 35, the bottom block 35 is connected to the lead screw 2 34 through a nut, the top outer wall of the bottom block 35 is rotatably connected to a matching rod 32, the matching rod 32 matches the inner wall of the pull plate 2 33, the top outer wall of the pull plate 1 31 is welded with a matching rod 2 30, and the matching rod 2 30 is connected to the fixed plate 6;

[0043] Working principle: When the steam trap body 5 needs to be fixed by the plug rod 7 outside the fixing plate 6, the screw 2 34 can be rotated to make the matching rod 3 32 on the top of the bottom block 35 match the pull plate 2 33, so that the pull plate 2 33 rotates to pull the pull plate 1 31, and then the fixing plates 6 connected to the top of the pull plate 1 31 are close to each other, and the plug rod 7 is inserted into the fixing block 8 to realize the rapid fixation of the steam trap body 5.

[0044] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A thermal steam trap for a steam turbine in a thermal power plant, comprising a steam trap body (5), a connecting pipe (9) and a lifting mechanism, characterized in that: The top outer wall of the steam trap body (5) is fixedly mounted with an installation box (1), the inner side wall of the installation box (1) is slidably connected with a transverse slider (18), a spring (19) is fixedly mounted between the transverse slider (18) and the inner wall of the installation box (1), the outer side wall of the transverse slider (18) is rotatably connected with a buckle plate (20), the outer side wall of the buckle plate (20) is provided with an arc groove (24), and the inner side wall of the installation box (1) is provided with a rising slide groove (21) A matching rod (25) is slidably connected between the rising slide groove (21) and the inner wall of the arc groove (24), a buckle head (23) is fixedly installed on the outer side wall of the buckle plate (20), a motor (16) is fixedly installed on the inner side wall of the installation box (1), and the output end of the motor (16) is connected to a screw (22) through a coupling, and a pulling plate (17) is slidably connected to the inner side wall of the installation box (1), and the pulling plate (17) is connected to the screw (22) through a nut.

2. A thermal steam trap for a steam turbine in a thermal power plant according to claim 1, characterized in that: A fixing block (8) is fixedly mounted on the outer side wall of the steam trap body (5), and the fixing block (8) cooperates with a lifting mechanism. The lifting mechanism comprises a lifting seat (2), a base (3), and a third installation box (28). The third installation box (28) is fixedly mounted on the outer side wall of the base (3). A side guide plate (4) is fixedly mounted on the top outer wall of the base (3). The lifting seat (2) is slidably connected to the outer side wall on the opposite side of the side guide plate (4).

3. A thermal steam trap for a steam turbine in a thermal power plant according to claim 2, characterized in that: The bottom outer wall of the rising seat (2) is rotatably connected to a connecting rod (26), the bottom inner wall of the installation box three (28) is fixedly installed with an electric push rod (29), the bottom inner wall of the rising seat (2) is slidably connected to a sliding block (27), the connecting rod (26) is rotatably connected to one end of the sliding block (27), the sliding block (27) is connected to the telescopic end of the electric push rod (29), and the inner wall of the rising seat (2) is slidably connected to a fixed plate (6).

4. A thermal steam trap for a steam turbine in a thermal power plant according to claim 3, characterized in that: A control component is provided inside the lifting seat (2), and the control component is connected to the fixing plate (6). An insertion rod (7) is fixedly installed on the outer side wall of the fixing plate (6), and the insertion rod (7) cooperates with the fixing block (8).

5. The thermal steam trap for a steam turbine in a thermal power plant according to claim 1, characterized in that: The outer side wall of the installation box 1 (1) is fixedly mounted with the installation box 2 (15), the inner side wall of the installation box 2 (15) is fixedly mounted with the pressure sensor (13) and the control module (14), and the inner wall of the steam trap body (5) is slidably connected with the extrusion rod (10).

6. A thermal steam trap for a steam turbine in a thermal power plant according to claim 5, characterized in that: A mounting tube (11) is fixedly mounted on the outer side wall of the steam trap body (5), a spring (12) is fixedly mounted between the extrusion rod (10) and the inner wall of the mounting tube (11), and the other end of the extrusion rod (10) is in contact with a pressure sensor (13).

7. A thermal steam trap for a steam turbine in a thermal power plant according to claim 4, characterized in that: The control assembly comprises a pull plate 2 (33) and a lead screw 2 (34); the pull plate 2 (33) is rotatably connected to the top inner wall of the rising seat (2); the inner wall of the pull plate 2 (33) is rotatably connected to the pull plate 1 (31); the lead screw 2 (34) is rotatably connected to the inner wall of the rising seat (2); the bottom inner wall of the rising seat (2) is slidably connected to a bottom block (35); the bottom block (35) is connected to the lead screw 2 (34) via a nut.

8. A thermal steam trap for a steam turbine in a thermal power plant according to claim 7, characterized in that: The top outer wall of the bottom block (35) is rotatably connected with a matching rod three (32), and the matching rod three (32) matches with the inner wall of the pull plate two (33). The top outer wall of the pull plate one (31) is fixedly installed with a matching rod two (30), and the matching rod two (30) is connected to the fixed plate (6).

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