Tile temperature measuring device for steam turbine of power plant

Abstract

The utility model relates to the technical field of bearing bush temperature measurement, and discloses a bearing bush temperature measuring device for a steam turbine of a power plant, a thrust bearing bush is detachably mounted on the outer wall of a shell through a bolt, a probe groove is formed in the outer surface of the thrust bearing bush, a groove is formed in the outer surface of the shell, a sensor assembly is clamped in the groove, and the sensor assembly is connected with the thrust bearing bush. The sensor assembly comprises a temperature sensor, a probe rod is fixedly installed at one end of the temperature sensor, a rear seat is fixedly installed at the other end of the temperature sensor, and a wire connector is fixedly installed on the side face of the rear seat. The probe rod is inserted into the probe groove, the temperature sensor and the rear seat go in and out of the groove, and the spring pushes the raised head to be inserted into the clamping groove, so that the rear seat and the shell are clamped with each other, and rapid insertion of the sensor assembly is realized; on the contrary, force is applied outwards to pull the rear seat outwards, the protruding head is squeezed to retract into the mounting groove, the protruding head and the clamping groove are separated from each other, and then the sensor assembly is rapidly disassembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to machine bearing shell temperature measurement technical field, concretely is a power plant steam turbine bearing shell temperature measurement device. BACKGROUND

[0002] The power plant needs to carry out power generation through the steam turbine, the steam turbine has the action of sliding when working, and the bearing shell can ensure the good sliding of the components in the steam turbine, but the temperature of the bearing shell will rise when it is rubbed for a long time, which may cause damage to the bearing shell. Therefore, a power plant steam turbine bearing shell temperature measurement device is needed.

[0003] When the power plant steam turbine is in use, the temperature of its bearing shell needs to be monitored to prevent it from being too high. Currently, a temperature sensor is embedded in the thrust bearing, but when measuring the temperature, the probe rod of the temperature sensor is prone to deviation due to vibration, which may result in poor temperature measurement results. In addition, it is very inconvenient to disassemble the temperature sensor, which brings inconvenience to the maintenance of the equipment. UTILITY MODEL CONTENTS

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a power plant steam turbine bearing shell temperature measurement device, which has the advantages of convenient disassembly and protection of the probe from vibration deviation, and solves the problems in the above.

[0006] (II) Technical scheme

[0007] To achieve the above-mentioned purpose of convenient disassembly and protection of the probe from vibration deviation, the utility model provides the following technical scheme: a power plant steam turbine bearing shell temperature measurement device, comprising a shell, a limiting ring is rotatably installed on the inner wall of the upper end and the lower end of the shell, a thrust bearing is detachably installed on the outer wall of the shell through bolts, a probe slot is formed on the outer surface of the thrust bearing, a groove is formed on the outer surface of the shell, a sensor assembly is clamped in the inside of the groove, the sensor assembly comprises a temperature sensor, a probe rod is fixedly installed at one end of the temperature sensor, a rear seat is fixedly installed at the other end of the temperature sensor, and a wire connector is fixedly installed on the side surface of the rear seat.

[0008] Preferably, an installation slot is formed on the surface of the rear seat, a protruding head is inserted and installed at the opening of the installation slot, inclined plates are fixedly installed on both sides of the bottom of the protruding head, a limiting plate is fixedly installed at the other end of the inclined plate, and a spring is fixedly installed at the bottom of the protruding head between the two inclined plates.

[0009] Preferably, a clamping groove corresponding to the protruding head is arranged on the inner wall of the groove, and the rear seat is detachably clamped in the groove of the shell through the protruding head and the clamping groove.

[0010] Preferably, the outside of the probe rod is sleeved with a silica gel ring, and the probe rod is inserted into the inside of the probe groove through the silica gel ring.

[0011] Preferably, one end of the convex head inserted into the clamping groove is arranged in a curved surface shape.

[0012] (Three) beneficial effects

[0013] Compared with the prior art, the power plant steam turbine bushing temperature measuring device has the following beneficial effects:

[0014] 1. The power plant steam turbine bushing temperature measuring device, the probe rod is inserted into the inside of the probe groove through the silica gel ring, and the silica gel ring is used to make the probe rod suspended in the probe groove. When the thrust pad vibrates, the silica gel ring can absorb and relieve the vibration, so that the probe rod will not deviate from the position during temperature measurement, thereby improving the temperature measurement accuracy.

[0015] 2. The power plant steam turbine bushing temperature measuring device, the probe rod is inserted into the probe groove, the temperature sensor and the rear seat are inserted into the recess, the spring pushes the convex head into the clamping groove, and the rear seat and the shell are clamped with each other, so that the sensor assembly is quickly inserted; conversely, the rear seat is pulled outward by external force, the convex head is pressed and retracted into the installation groove, the convex head and the clamping groove are separated from each other, and the sensor assembly is quickly disassembled. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a horizontal section structure schematic view of the utility model;

[0018] Figure 3 It is a vertical section structure schematic view of the utility model;

[0019] Figure 4 It is a local section disassembly structure schematic view of the utility model;

[0020] Figure 5 It is a local section structure schematic view of the utility model;

[0021] Figure 6 It is a sensor assembly structure schematic view of the utility model;

[0022] Figure 7 It is an exploded structure schematic view of the sensor assembly of the utility model;

[0023] Figure 8 It is a structure schematic view of the utility model Figure 4 at A;

[0024] Figure 9The structure diagram of the protruding head and the spring.

[0025] In the figure: 1, shell; 2, limit ring; 3, bolt; 4, thrust pad; 5, sensor assembly; 6, probe slot; 7, groove; 51, temperature sensor; 52, probe rod; 53, rear seat; 54, wire connector; 55, mounting groove; 56, protruding head; 57, inclined plate; 58, limit plate; 59, spring; 510, clamping groove; 511, silica gel ring. 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 protection scope of the utility model.

[0027] Please refer to Figures 1-5 A steam turbine pad temperature measuring device of a power plant, comprising a shell 1, a limit ring 2 is rotatably installed on the inner wall upper end and lower end of the shell 1, and the outer wall of the shell 1 is detachably installed with a thrust pad 4 through a bolt 3.

[0028] Please refer to Figures 1-5 The outer surface of the thrust pad 4 is provided with a probe slot 6 for preventing the probe of the sensor; the outer surface of the shell 1 is provided with a groove 7, and the sensor assembly 5 is clamped in the groove 7, so as to realize the dismounting and mounting of the sensor assembly 5.

[0029] Please refer to Figures 6-7 The sensor assembly 5 comprises a temperature sensor 51, one end of the temperature sensor 51 is fixedly installed with a probe rod 52, the probe rod 52 is inserted into the inside of the probe slot 6, the other end of the temperature sensor 51 is fixedly installed with a rear seat 53, the rear seat 53 is inserted into the inside of the groove 7, the side surface of the rear seat 53 is fixedly installed with a wire connector 54, and the wire connector 54 is connected with an external display terminal through a wire.

[0030] Please refer to Figures 6-9 The surface of the rear seat 53 is provided with a mounting groove 55, the protruding head 56 is inserted and installed at the opening of the mounting groove 55, the bottom of the protruding head 56 is fixedly installed with the inclined plate 57 on both sides, the other end of the inclined plate 57 is fixedly installed with the limit plate 58, the inclined plate 57 and the limit plate 58 are integrally formed, the inclined plate 57 is elastic, and the inner wall of the mounting groove 55 is matched with the inclined plate 57; the spring 59 is fixedly installed at the bottom of the protruding head 56 and between the two inclined plates 57, so as to ensure that the protruding head 56 always exerts force outward.

[0031] Please refer to Figures 6-9, the inner wall of the recess 7 is provided with a clamping groove 510 corresponding to the protrusion 56, one end of the protrusion 56 inserted into the clamping groove 510 is provided in a curved surface, and the rear seat 53 is detachably clamped inside the recess 7 of the shell 1 through the protrusion 56 and the clamping groove 510. The outer side of the probe rod 52 is sleeved with a silica gel ring 511, and the probe rod 52 is inserted into the inside of the probe groove 6 through the silica gel ring 511, which is used for controlling the probe rod 52 not to contact the probe groove 6 and reducing the vibration of the probe rod 52 and the thrust pad 4.

[0032] Working principle: in use, the probe rod 52 is inserted into the probe groove 6, and the temperature sensor 51 and the rear seat 53 are inserted into the recess 7, wherein the spring 59 pushes the protrusion 56 to be inserted into the clamping groove 510, and then the mutual clamping of the rear seat 53 and the shell 1 is realized, so that the quick plug-in of the sensor assembly 5 is realized.

[0033] Conversely, the rear seat 53 is pulled outward by external force, the protrusion 56 is extruded and retracted into the mounting groove 55, the protrusion 56 and the clamping groove 510 are separated from each other, and then the quick disassembly of the sensor assembly 5 is realized.

[0034] The probe rod 52 is inserted into the inside of the probe groove 6 through the silica gel ring 511, the probe rod 52 is suspended in the probe groove 6 by the silica gel ring 511, the silica gel ring 511 can absorb and relieve the vibration when the thrust pad 4 vibrates, the position of the probe rod 52 is not deviated when measuring temperature, and then the temperature measurement accuracy is improved.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A power plant turbine shoe temperature measuring device, comprising a shell (1), the inner wall of the shell (1) is rotatably installed with a limit ring (2) at the upper end and the lower end, and the outer wall of the shell (1) is detachably installed with a thrust shoe (4) through a bolt (3), characterized in that: The outer surface of the thrust pad (4) is provided with a probe groove (6), the outer surface of the shell (1) is provided with a groove (7), the inside of the groove (7) is clamped with a sensor assembly (5), the sensor assembly (5) comprises a temperature sensor (51), one end of the temperature sensor (51) is fixedly installed with a probe rod (52), the other end of the temperature sensor (51) is fixedly installed with a rear seat (53), the side surface of the rear seat (53) is fixedly installed with a wire joint (54).

2. A turbine bearing temperature measuring device for a power plant as recited in claim 1, wherein: The surface of the rear seat (53) is provided with a mounting groove (55), the opening of the mounting groove (55) is inserted and installed with a lug (56), the bottom of the lug (56) is fixedly installed with an inclined plate (57) on both sides, the other end of the inclined plate (57) is fixedly installed with a limiting plate (58), the bottom of the lug (56) and between the two inclined plates (57) is fixedly installed with a spring (59).

3. A turbine bearing temperature measuring device for a power plant as recited in claim 2, wherein: The inner wall of the groove (7) is provided with a clamping groove (510) corresponding to the lug (56), the rear seat (53) is detachably clamped in the inside of the groove (7) of the shell (1) through the lug (56) and the clamping groove (510).

4. A turbine bearing temperature measuring device for a power plant as recited in claim 2, wherein: The outside of the probe rod (52) is sleeved with a silica gel ring (511), the probe rod (52) is inserted in the inside of the probe groove (6) through the silica gel ring (511).

5. A turbine bearing temperature measuring device for a power plant as recited in claim 2 wherein: The end of the lug (56) inserted into the clamping groove (510) is provided in a curved surface.

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