CN219589833U - Adsorption type temperature measurement sensor for transformer - Google Patents

Abstract

The utility model provides an adsorption type temperature sensor for a transformer, which comprises an outer sheath, a transformer winding temperature sensor core, a U-shaped part, an adjusting screw, a thread connecting sleeve and a transformer adsorption base, wherein the transformer winding temperature sensor core is fixed in the outer sheath between a front end cover and a rear end cover at the two ends of the outer sheath, a fiber bragg grating is arranged in the transformer winding temperature sensor core, an optical cable connected with the fiber bragg grating is fixed on the front end cover, the bottom ends of the front end cover and the rear end cover are hinged and connected with the U-shaped part, the bottom end of the U-shaped part is connected with the adjusting screw, the top end of the adjusting screw is connected with the U-shaped part through a bearing, the bottom end of the adjusting screw is connected with the thread connecting sleeve in a thread mode, the thread connecting sleeve is fixed on the transformer adsorption base, and the transformer adsorption base comprises an external insulating rubber sleeve and a magnetic absorption plate coated inside the insulating rubber sleeve. The adsorption sensor can adjust the angle and the extension length of the inner space to meet the requirement of non-contact temperature measurement.

Description

Adsorption type temperature measurement sensor for transformer

Technical Field

The utility model relates to the technical field of sensors, in particular to an adsorption type temperature measurement sensor for a transformer.

Background

In national economy development, electric power is one of important basic energy sources; along with the continuous forward development of national economy, the demand of power resources is rapidly increased, the scale of a power system is continuously enlarged, and the temperature detection of the power system becomes an increasingly important research subject; the traditional electric power temperature sensor is mainly divided into a contact type sensor and a non-contact type sensor, wherein the contact type sensor mainly comprises a thermal resistor, a thermocouple and the like; in some methods, the platinum resistor is used for detecting the temperature of the electric equipment, and then the acquired temperature data is sent to an upper computer for processing, so that a better temperature detection effect can be obtained.

The existing non-contact sensor generally adopts optical fibers for temperature detection, and the sensor is generally fixed in a transformer through screws, so that the disassembly and assembly are troublesome, and the installation position of the sensor cannot be adjusted in the internal space of the transformer in an adaptive manner.

Disclosure of Invention

The utility model aims to provide an adsorption type temperature measuring sensor for a transformer, so as to solve the problems.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides an absorption formula temperature sensor for transformer, includes oversheath, transformer winding temperature sensor core, front end housing, rear end housing, optical cable, U type spare, adjusting screw, thread connection cover and transformer adsorption base, the both ends of oversheath are fixed with front end housing and rear end housing with its sealedly, be located the inside of oversheath between front end housing and the rear end housing and be fixed with transformer winding temperature sensor core, the inside of transformer winding temperature sensor core is equipped with fiber bragg grating, fiber bragg grating is fixed by two fixed glues of fixing both ends around the inside of transformer winding temperature sensor core, be fixed with the optical cable of being connected with fiber bragg grating on the front end housing, the bottom of front end housing and rear end housing articulates and is connected with U type spare, the bottom of U type spare is connected with adjusting screw, the top of adjusting screw passes through the bearing and is connected with U type spare, the bottom of adjusting screw with thread connection cover, the thread connection cover is fixed on transformer adsorption base, transformer adsorption base includes outside insulation gum cover and cladding in the inside the insulation board.

Preferably, a buffer filling layer is arranged between the transformer winding temperature measurement sensor core and the outer sheath, and the buffer filling layer is internally filled with buffer.

Preferably, the insulating rubber sleeve is made of high-temperature resistant insulating silica gel or rubber materials.

Preferably, the adjusting screw is arranged between the thread connecting sleeve and the U-shaped piece, and the adjusting dial ring is fixed outside the adjusting screw in a circular shape.

Preferably, the outer sheath, the front end cover and the rear end cover are all made of high-temperature resistant materials.

The utility model provides an adsorption type temperature measurement sensor for a transformer. The beneficial effects are as follows:

according to the adsorption type temperature measurement sensor for the transformer, the adjustable adjusting screw rods are arranged at the bottom ends of the front end cover and the rear end cover to adjust the extension length and the angle of the two ends, so that the temperature measurement sensor core of the transformer winding is opposite to the transformer winding, and the temperature measurement sensor core is convenient to adjust aiming at the inner space to meet the temperature measurement distance.

Drawings

FIG. 1 is a schematic diagram of an adsorption temperature sensor for a transformer according to the present utility model.

Fig. 2 is a schematic diagram of an external structure of an adsorption type temperature sensor for a transformer according to the present utility model.

FIG. 3 is a schematic diagram of a U-shaped member of an adsorption temperature sensor for a transformer according to the present utility model.

In the figure: 1. an outer sheath; 2. a transformer winding temperature sensor core; 3. a front end cover; 4. a rear end cover; 5. an optical fiber grating; 6. fixing glue; 7. an optical cable; 8. a U-shaped piece; 9. adjusting a screw; 10. a bearing; 11. adjusting the shifting ring; 12. a thread connecting sleeve; 13. an insulating rubber sleeve; 14. a magnetic suction plate; 15. a transformer adsorption base; 16. and a buffer filling layer.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and detailed description below:

in the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms of "top", "bottom", "one side", "the other side", "front", "rear", "middle portion", "inner", "top", "bottom", etc., are directions or positional relationships based on the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-3, an adsorption type temperature sensor for a transformer comprises an outer sheath 1, a temperature sensor core 2 for a transformer winding, a front end cover 3, a rear end cover 4, an optical cable 7, a U-shaped piece 8, an adjusting screw 9, a threaded connecting sleeve 12 and a transformer adsorption base 15, wherein the front end cover 3 and the rear end cover 4 which are used for sealing the front end cover 3 and the rear end cover 4 are fixed at two ends of the outer sheath 1, the temperature sensor core 2 for the transformer winding is fixed inside the front end cover 3 and the rear end cover 4, the temperature sensor core 2 for the transformer winding is internally provided with an optical fiber grating 5, heat is transferred to the optical fiber grating 5 through the temperature sensor core 2 for the transformer winding, the optical fiber grating 5 is fixedly ensured to be stable by two fixed rubbers 6 fixed at the front end and the rear end of the temperature sensor core 2, the optical cable 7 connected with the optical fiber grating 5 is fixed on the front end cover 3, the U-shaped piece 8 is hinged at the bottom ends of the front end cover 4, the U-shaped piece 8 is connected with the bottom end 9 through the adjusting screw 9, the magnetic rubber sleeve is connected with the magnetic rubber sleeve 12 at the bottom end of the magnetic rubber sleeve 9 through the screw 9, the magnetic rubber sleeve is connected with the magnetic rubber sleeve 13 through the screw 15, and the magnetic rubber sleeve is connected with the magnetic rubber sleeve 13 at the bottom of the magnetic rubber sleeve, and the magnetic rubber sleeve is connected with the magnetic rubber sleeve, and the magnetic rubber is connected with the magnetic rubber sleeve is connected with the magnetic rubber.

According to the technical scheme, the buffer filling layer 16 is arranged between the transformer winding temperature measuring sensor core 2 and the outer sheath 1, the buffer is filled in the buffer filling layer 16, and the internal transformer winding temperature measuring sensor core 2 is protected through the built-in buffer.

Through the above technical scheme of the utility model, the insulating rubber sleeve 13 is made of high-temperature resistant insulating silica gel or rubber material.

According to the technical scheme, the adjusting screw 9 is arranged between the thread connecting sleeve 12 and the U-shaped piece 8, the adjusting dial ring 11 is fixed outside the adjusting screw 9 in a circular ring shape, and the adjusting dial ring 11 can be stirred by fingers to drive the adjusting screw 9 to rotate.

Through the technical scheme of the utility model, the outer sheath 1, the front end cover 3 and the rear end cover 4 are all made of high-temperature resistant materials.

The specific implementation flow of the utility model is as follows: external heat is transferred to the fiber bragg grating 5 through the transformer winding temperature measurement sensor core 2, the fiber bragg grating is reliably fixed through the fixing glue 6 to carry out temperature measurement, the transformer adsorption base 15 of the device is adsorbed to the inner wall of the transformer and is installed opposite to the transformer winding, then the adjusting dial ring 11 at the front end cover 3 or the rear end cover 4 is rotated to drive the adjusting screw 9 to rotate, so that the distance and the angle between the front end cover 3 and the rear end cover 4 and the transformer adsorption base are changed, the transformer winding temperature measurement sensor core is opposite to the transformer winding, and the proper temperature measurement distance is adjusted.

In summary, according to the adsorption type temperature sensor for the transformer, the adjustable adjusting screw is arranged at the bottom ends of the front end cover and the rear end cover to adjust the extension length and the angle of the two ends, so that the temperature sensor core of the transformer winding is opposite to the transformer winding, and the temperature sensor core is convenient to adjust aiming at the inner space to meet the temperature measurement distance, and has strong practicability and popularization value.

Finally, it should be noted that: the present utility model is not limited to the preferred embodiments, but can be modified or substituted for some of the technical features described in the above embodiments by those skilled in the art, although the present utility model has been described in detail with reference to the above embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The utility model provides an absorption formula temperature sensor for transformer, its characterized in that includes oversheath (1), transformer winding temperature sensor core (2), front end housing (3), rear end housing (4), optical cable (7), U type spare (8), adjusting screw (9), threaded connection cover (12) and transformer absorption base (15), the both ends of oversheath (1) are fixed with front end housing (3) and rear end housing (4) with its sealedly, be located inside of oversheath (1) between front end housing (3) and rear end housing (4) and be fixed with transformer winding temperature sensor core (2), the inside of transformer winding temperature sensor core (2) is equipped with fiber bragg grating (5), fiber bragg grating (5) are fixed by two fixed glues (6) of fixing both ends around transformer winding temperature sensor core (2), be fixed with on front end housing (3) with optical cable (7) that are connected with fiber bragg grating (5), the bottom hinge connection of front end housing (3) and rear end housing (4) have U type spare (8), the bottom of adjusting screw (9) are connected with screw (9) through adjusting screw, the bottom of the adjusting screw (9) is in threaded connection with the threaded connecting sleeve (12), the threaded connecting sleeve (12) is fixed on the transformer adsorption base (15), and the transformer adsorption base (15) comprises an external insulating rubber sleeve (13) and a magnetic suction plate (14) coated inside the insulating rubber sleeve (13).

2. An adsorption type temperature sensor for a transformer according to claim 1, wherein: a buffer filling layer (16) is arranged between the transformer winding temperature measurement sensor core (2) and the outer sheath (1), and a buffer is filled in the buffer filling layer (16).

3. An adsorption type temperature sensor for a transformer according to claim 1, wherein: the insulating rubber sleeve (13) is made of high-temperature resistant insulating silica gel or rubber materials.

4. An adsorption type temperature sensor for a transformer according to claim 1, wherein: the adjusting screw (9) is arranged between the thread connecting sleeve (12) and the U-shaped piece (8) and is provided with an adjusting dial ring (11), and the adjusting dial ring (11) is fixed outside the adjusting screw (9) in a circular shape.

5. An adsorption type temperature sensor for a transformer according to claim 1, wherein: the outer sheath (1), the front end cover (3) and the rear end cover (4) are made of high-temperature resistant materials.