CN220084201U

CN220084201U - Generator replaceable fluorescent optical fiber temperature on-line monitoring device

Info

Publication number: CN220084201U
Application number: CN202321294527.0U
Authority: CN
Inventors: 李晓丽
Original assignee: Shanghai Dongyan Electric Co ltd
Current assignee: Shanghai Dongyan Electric Co ltd
Priority date: 2023-05-25
Filing date: 2023-05-25
Publication date: 2023-11-24
Anticipated expiration: 2033-05-25

Abstract

The utility model discloses a generator replaceable fluorescent optical fiber temperature on-line monitoring device, which comprises a sensing body, a detecting body and a host, wherein the sensing body is preset at a position which is difficult to replace and needs to monitor temperature inside a generator when the generator is produced, the detecting body penetrates into the sensing body to reach a position to be detected, one end of the detecting body is connected with an interface of the host, and the host provides exciting light for the detecting body and demodulates a signal returned by the detecting body into a digital temperature signal to be displayed, stored and communicated in situ; pulling fiber connector for penetrating cable area probe and sliding out from the guide tube, can changing sensor body or detection body, after changing, penetrating cable area probe and inserting in the guide tube, rotate fiber connector, drive the internal thread pipe through the limiting plate and rotate, make the internal thread pipe insert the external screw thread pipe surface, with fiber connector with the host computer be connected can, be convenient for change the sensor of penetrating of damage.

Description

Generator replaceable fluorescent optical fiber temperature on-line monitoring device

Technical Field

The utility model relates to the technical field of fluorescent optical fiber temperature monitoring, in particular to a generator replaceable fluorescent optical fiber temperature on-line monitoring device.

Background

The generator is a starting point of electric energy, is a device for converting mechanical energy into electric energy by using an electromagnetic principle, and the principle is that the mechanical energy drives a rotor to rotate to cut a magnetic induction wire, and induction electromotive force is generated in a stator bar to form the electric energy. The part of the energy lost in the energy conversion is mostly consumed thermally. The internal temperature of the generator is too high to cause the problems of insulation performance reduction of an insulating layer, ageing acceleration of devices and the like, and abnormal safety accidents such as abnormal shutdown and fire disaster of the generator are seriously caused, so that real-time temperature monitoring of the generator is almost the most important secondary monitoring means, the hot spot is monitored by adopting a platinum thermal resistor in the prior art, but the platinum thermal resistor is based on temperature measurement of an electric signal, and the temperature sensing point is connected with a wire in a welding mode, so that the temperature sensing point is easily interfered under the electromagnetic environment of continuous vibration to cause false alarm or complete damage of the high resistance value, and the damaged sensor cannot be replaced.

The current solution is to use the optical fiber temperature sensor to promote temperature measurement stability and reliability, also have to use a novel removable sensor to solve the problem that can't change, for example, patent application number 202111329069.5 discloses a sensor that the sensor can change at any time, this mode both can solve the unstable problem of temperature signal, can also solve the sensor from the root and pack into the unable problem of changing after the back, but because penetrate the sensor and be integral type structure, the entry rear end needs the switching, if not switching integral type optical cable length is longer, be difficult for the protection, especially when the sensor is fluorescent fiber temperature sensor, because the switching is great to the temperature measurement performance influence, not switching optical cable is too fragile and damages easily again.

Disclosure of Invention

Based on the above description, the utility model provides an on-line monitoring device for the temperature of a replaceable fluorescent optical fiber of a generator, which is used for solving the problems in the background art.

The technical scheme for solving the technical problems is as follows:

the utility model provides a removable fluorescent fiber temperature on-line monitoring device of generator, includes sensing body, detection body and host computer, the sensing body presets the position that is difficult to change and need monitor temperature in the generator inside when the generator is produced, the detection body penetrates the sensing body and arrives the position of awaiting measuring, the interface of host computer is inserted to the one end of detection body, the host computer provides exciting light for the detection body and with the signal demodulation that the detection body returned show on spot after the digital temperature signal, store and accomplish one or more in the communication three, can dismantle the connection between sensing body and the detection body, can change the detection body under the condition of not demolishing the sensing body.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the sensing body comprises a fixed seat, the fixed guide pipe that is provided with of fixing base rear side, guide pipe surface overlap joint is provided with the locking board, locking board fixed surface is provided with the connecting plate, the connecting plate surface runs through and is provided with the connecting hole, the inside overlap joint of connecting hole is provided with first screw rod, the fixed plate that is provided with of rear end of first screw rod, first screw rod surface screw thread is provided with fixation nut, locking board rear side is fixed to be provided with the external screw thread pipe, the inside overlap joint of locking board is provided with the spacing ring, and spacing ring and guide pipe fixed connection setting.

Further, the detection body is including cup jointing in the outside lag of optical cable, the fixed fiber connector that is provided with in lag front end, fiber connector's tip is provided with penetrates the cable, the fixed detection point that is provided with of tip that penetrates the cable, lag surface overlap joint is provided with the limiting plate, the fixed internal thread pipe that is provided with of limiting plate front side, limiting plate fixed surface is provided with the mounting panel, the mounting panel surface runs through and is provided with the mounting hole, the inside overlap joint of mounting hole is provided with the second screw rod, the fixed baffle that is provided with in second screw rod rear end, second screw rod surface screw thread is provided with stop nut, the inside overlap joint of limiting plate is provided with the baffle, and the baffle sets up with lag fixed connection.

Further, the host comprises a shell, wherein a light source, a light splitter, a photoelectric conversion module, a power supply module, an MCU main control module and a data processing module are arranged in the shell.

Furthermore, the guide tube adopts a PEEK insulating heat-resistant tube, and is a hollow circular tube.

Further, the detection point is a temperature sensing element, the detection point is a fluorescent substance, and the detection point is connected with the optical fiber connector through a penetrating cable.

Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:

this removable fluorescent fiber temperature on-line monitoring device of generator places the locking board in the guide tube surface for two locking boards and two connecting plates contact, promote first screw rod through the fixed plate and insert in the connecting hole, insert first screw rod surface and screw up the fixed nut with the fixed nut, make the spacing ring insert inside the locking board, install the external screw thread pipe on the guide tube surface, place two limiting plates again in the lag surface, make two limiting plates and two mounting panels contact, promote the baffle and make the second screw rod insert inside the mounting hole, insert the second screw rod surface with the limit nut and screw up the limit nut, make the stop ring insert inside the limiting plate, can install the internal screw thread pipe on the lag surface, when needs to penetrating the sensor change, extract the fiber connector from the host computer, rotate the fiber connector, it rotates the internal screw thread pipe through the limiting plate, make the internal screw thread pipe take off from the external screw thread pipe surface, the pulling fiber connector, make penetrating the cable band point and slide out from the guide tube, can change the sensor body or the detector, it is removable to insert the optical fiber connector through the guide tube after the band, the change, can be changed the internal screw thread pipe is connected with the main machine, the internal screw thread connector is damaged through the rotation, the rotation of the guide tube is connected after the change, the sensor is connected through the threading the thread.

Drawings

FIG. 1 is an isometric view of a structure of the present utility model;

FIG. 2 is a schematic diagram of a structural sensor according to the present utility model;

FIG. 3 is a schematic view of a partial structure of a structural sensor according to the present utility model;

FIG. 4 is a schematic view of another partial structure of the structural sensor body of the present utility model;

FIG. 5 is a schematic view of a structure according to the present utility model

FIG. 6 is a schematic view of a partial structure of a structure probe according to the present utility model;

FIG. 7 is a schematic view of another partial structure of the structure-probe of the present utility model;

FIG. 8 is a schematic diagram of a host structure according to the present utility model;

FIG. 9 is a schematic diagram of the internal structure of the structural host according to the present utility model;

in the drawings, the list of components represented by the various numbers is as follows:

1. a sensor body; 11. a fixing seat; 12. a guide tube; 13. a locking plate; 14. a connecting plate; 15. a connection hole; 16. a first screw; 17. a fixing plate; 18. a fixing nut; 19. an external threaded tube; 110. a limiting ring; 2. a probe; 21. a protective sleeve; 22. penetrating a cable; 23. detecting points; 24. a limiting plate; 25. an internally threaded tube; 26. a mounting plate; 27. a mounting hole; 28. a second screw; 29. a baffle; 210. a limit nut; 211. a blocking ring; 212. an optical fiber connector; 3. a host; 31. a light source; 32. a beam splitter; 33. a photoelectric conversion module; 34. a power supply module; 35. an MCU main control module; 36. a data processing module; 37. a housing.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Embodiments of the utility model are illustrated in the accompanying drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

It will be appreciated that spatially relative terms such as "under …," "under …," "below," "under …," "over …," "above," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "under …" and "under …" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. In the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", and the like, if the connected circuits, modules, units, and the like have electrical or data transferred therebetween.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

As shown in fig. 1-9, the generator replaceable fluorescent optical fiber temperature on-line monitoring device comprises a sensing body 1, a detecting body 2 and a host computer 3, wherein the sensing body 1 is preset at a position which is difficult to replace and needs to monitor temperature in a generator during generator production, the detecting body 2 penetrates into the sensing body 1 to reach a position to be detected, one end of the detecting body 2 is connected with an interface of the host computer 3, the host computer 3 provides exciting light for the detecting body 2 and demodulates a signal returned by the detecting body 2 into a digital temperature signal, and then displays, stores and completes one or more of communication.

Specifically, the sensing body 1 includes fixing base 11, fixing base 11 rear side is fixed and is provided with guide tube 12, guide tube 12 surface overlap joint is provided with locking plate 13, locking plate 13 fixed surface is provided with connecting plate 14, connecting plate 14 surface runs through and is provided with connecting hole 15, connecting hole 15 inside overlap joint is provided with first screw rod 16, the rear end of first screw rod 16 is fixed and is provided with fixed plate 17, make first screw rod 16 and fixed plate 17 become one entity, first screw rod 16 surface screw thread is provided with fixation nut 18, locking plate 13 rear side is fixed and is provided with external screw thread pipe 19, locking plate 13 inside overlap joint is provided with spacing ring 110, and spacing ring 110 and guide tube 12 fixed connection set up, place locking plate 13 in guide tube 12 surface, make two locking plates 13 and two connecting plates 14 contact, promote first screw rod 16 to insert in connecting hole 15 through fixed plate 17, insert first screw rod 16 surface and screw rod 18 and screw fixation nut 18, make spacing ring 110 insert locking plate 13 inside, install external screw thread pipe 19 at guide tube 12 surface. The connection position between the sensor body 1 and the probe body 2 adopts PEEK or PE I materials.

Specifically, the detecting body 2 includes a protecting sleeve 21 sleeved outside the optical cable, an optical fiber connector 212 is fixedly arranged at the front end of the protecting sleeve 21, a penetrating cable 22 is arranged at the end part of the optical fiber connector 212, a detecting point 23 is fixedly arranged at the end part of the penetrating cable 22, a limiting plate 24 is arranged on the surface lap joint of the protecting sleeve 21, an internal thread pipe 25 is fixedly arranged at the front side of the limiting plate 24, a mounting plate 26 is fixedly arranged on the surface of the limiting plate 24, a mounting hole 27 penetrates through the surface of the mounting plate 26, a second screw 28 is arranged on the inner lap joint of the mounting hole 27, a baffle 29 is fixedly arranged at the rear end of the second screw 28, a limiting nut 210 is arranged on the surface of the second screw 28, a baffle ring 211 is fixedly connected with the protecting sleeve 21, two limiting plates 24 are arranged on the surface of the protecting sleeve 21, the two limiting plates 24 are contacted with the two mounting plates 26, the baffle 29 is pushed to enable the second screw 28 to be inserted into the mounting hole 27, the limiting nut 210 is inserted into the surface of the second screw 28, and the limiting nut 210 is tightly screwed, and the baffle ring 211 is inserted into the inside the limiting plate 24, namely, the internal thread pipe 25 can be mounted on the surface of the protecting sleeve 21.

Specifically, the host 3 includes a housing 37, the housing 37 is internally provided with a light source 31, a light splitter 32, a photoelectric conversion module 33, a power supply module 34, an MCU main control module 35 and a data processing module 36, excitation light emitted by the light source 31 is coupled into an optical fiber connector 212 after passing through the light splitter 32, reaches a detection point 23 after passing through a protection sleeve 21 and a penetrating cable 22, and an optical signal returned by the detection point 23 reaches the light splitter 32 after passing through the penetrating cable 22 and the protection sleeve 21, is received by the photoelectric conversion module 33, is converted into an electrical signal, is transmitted to the MCU main control module 35 for demodulation, and the MCU main control module 35 demodulates the optical signal into the electrical signal to realize storage, display or external communication through the data processing module 36.

Specifically, the guide pipe 12 adopts a PEEK insulating heat-resistant pipe, the guide pipe 12 is a hollow circular pipe, and the guide pipe 12 adopting the PEEK insulating heat-resistant pipe has the advantages of high mechanical strength, high temperature resistance, impact resistance, flame retardance, acid and alkali resistance, hydrolysis resistance, wear resistance, fatigue resistance, irradiation resistance and good electrical property.

Specifically, the detection point 23 is a temperature sensing element, the detection point 23 is a fluorescent substance, and the detection point 23 is connected to the optical fiber connector 212 through the penetrating cable 22.

When in use: the locking plate 13 is placed on the surface of the guide tube 12, the two locking plates 13 are in contact with the two connecting plates 14, the first screw rod 16 is pushed to be inserted into the connecting hole 15 through the fixing plate 17, the fixing nut 18 is inserted into the surface of the first screw rod 16, the fixing nut 18 is screwed, the limiting ring 110 is inserted into the locking plate 13, the externally threaded tube 19 is installed on the surface of the guide tube 12, the two limiting plates 24 are placed on the surface of the protective sleeve 21, the two limiting plates 24 are in contact with the two mounting plates 26, the baffle 29 is pushed, the second screw rod 28 is inserted into the mounting hole 27, the limiting nut 210 is inserted into the surface of the second screw rod 28, the limiting nut 210 is screwed, the blocking ring 211 is inserted into the limiting plate 24, the internally threaded tube 25 can be installed on the surface of the protective sleeve 21, when a penetrating sensor needs to be replaced, the optical fiber connector 212 is pulled out from the host 3, the optical fiber connector 212 is rotated, the internally threaded tube 25 is driven to rotate through the limiting plate 24, the internally threaded tube 25 is removed from the surface of the external threaded tube 19, the optical fiber connector 212 is pulled, the penetrating connector 22 is pulled into the threaded tube 19, the threaded tube 22 is driven to be replaced, the threaded tube 2 is screwed into the threaded tube 2, and the threaded tube 2 is replaced, the threaded tube 2 is screwed into the threaded tube 2, the threaded tube 2 is replaced, and the threaded tube 2 is screwed into the threaded tube 2, the threaded connector is replaced by the threaded connector 2.

In summary, this removable fluorescent fiber temperature on-line monitoring device of generator, place locking plate 13 in guide tube 12 surface, make two locking plates 13 and two connecting plates 14 contact, promote first screw rod 16 through fixed plate 17 and insert in connecting hole 15, insert first screw rod 16 surface with fixation nut 18 and screw up fixation nut 18, make spacing ring 110 insert inside locking plate 13, install external screw thread pipe 19 on guide tube 12 surface, place two limiting plates 24 on lag 21 surface again, make two limiting plates 24 and two mounting panel 26 contact, promote baffle 29 and make second screw rod 28 insert mounting hole 27 inside, insert second screw rod 28 surface and screw up spacing nut 210, make the stop ring 211 insert in limiting plate 24 inside, can install internal thread pipe 25 on lag 21 surface, when need to change the sensor, pull out fiber connector 212 from host computer 3, rotate fiber connector 212, drive internal thread pipe 25 through limiting plate 24 and rotate, make internal thread pipe 25 take out from lead external thread pipe 19 to take out from the surface of connector 19, can take out the inner thread connector 212 from the guide tube 19, can be used for the inner thread connector 21 to take out the inner thread connector 2 to take out the inner thread connector 21 to take the surface to take out the inner thread connector 25 from the guide tube 2, can be used for the inner thread connector to take out the inner thread connector 2, can be changed, can be realized, the technical scheme is finished, can be changed, the inner thread connector is replaced, can be realized, and the inner thread connector is replaced, can be realized by the inner thread connector is replaced, and can be finished, the inner thread connector is replaced, and can be used for the inner thread connector is 21, and is used for the device is 21, and is used.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a generator removable fluorescent fiber temperature on-line monitoring device, includes sensing body (1), detection body (2) and host computer (3), its characterized in that, the position that is difficult to change and need monitor the temperature in the generator is preset in the generator inside when generator production to sensing body (1), detection body (2) penetrate sensing body (1) and reach the position of awaiting measuring, the interface of host computer (3) is inserted to one end of detection body (2), host computer (3) provide exciting light for detection body (2) and with the signal demodulation that detection body (2) returned in place after the digital temperature signal shows, stores and accomplishes one or more in the communication three, can dismantle between sensing body (1) and detection body (2) and be connected, can change detection body (2) under the circumstances of not demolishing sensing body (1), detection body (1) include fixing base (11), fixing base (11) rear side fixedly are provided with guide tube (12), guide tube (12) surface overlap joint is provided with locking plate (13), locking plate (13) provide one or more in place after demodulating into digital temperature signal, storage and accomplish communication three, screw rod (16) are provided with one end connection plate (16) and one end connection plate (16) are provided with, one end connection plate (16), the surface screw thread of first screw rod (16) is provided with fixation nut (18), fixed external screw thread pipe (19) that are provided with in locking board (13) rear side, inside overlap joint of locking board (13) is provided with spacing ring (110), and spacing ring (110) and guide tube (12) fixed connection set up.

2. The generator replaceable fluorescent optical fiber temperature online monitoring device according to claim 1, wherein the detecting body (2) comprises a protective sleeve (21) sleeved outside an optical cable, an optical fiber connector (212) is fixedly arranged at the front end of the protective sleeve (21), a penetrating cable (22) is arranged at the end part of the optical fiber connector (212), a detecting point (23) is fixedly arranged at the end part of the penetrating cable (22), a limiting plate (24) is arranged on the surface lap joint of the protective sleeve (21), an inner threaded pipe (25) is fixedly arranged at the front side of the limiting plate (24), a mounting plate (26) is fixedly arranged on the surface of the limiting plate (24), a mounting hole (27) is formed in the surface of the mounting plate (26) in a penetrating manner, a second screw (28) is fixedly arranged at the rear end of the mounting hole (27), a limiting nut (210) is arranged on the surface of the second screw (28), a blocking ring (211) is fixedly arranged on the inner lap joint of the limiting plate (24), and the blocking ring (211) is fixedly connected with the protective sleeve (21).

3. The generator-replaceable fluorescent optical fiber temperature online monitoring device according to claim 1, wherein the host (3) comprises a shell (37), and a light source (31), a beam splitter (32), a photoelectric conversion module (33), a power supply module (34), an MCU main control module (35) and a data processing module (36) are arranged inside the shell (37).

4. The generator replaceable fluorescent optical fiber temperature online monitoring device according to claim 1, wherein the guide tube (12) is a PEEK insulated temperature-resistant tube, and the guide tube (12) is a hollow circular tube.

5. The generator replaceable fluorescent optical fiber temperature online monitoring device according to claim 2, wherein the detection point (23) is a temperature sensing element, the detection point (23) is a fluorescent substance, and the detection point (23) is connected with the optical fiber connector (212) through a penetrating cable (22).