CN114518178A

CN114518178A - Temperature monitoring device for converter station valve hall

Info

Publication number: CN114518178A
Application number: CN202210028880.8A
Authority: CN
Inventors: 范乃元; 马朋飞; 邓渊; 郝留成; 刘建林; 杨国华; 丛士博; 钟建英; 付严伟; 张培园; 梁玉辉; 刘斯腾; 郑岚心; 高杨
Original assignee: Pinggao Group Co Ltd
Current assignee: Pinggao Group Co Ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-05-20

Abstract

The invention provides a temperature monitoring device for a converter station valve hall, which comprises a mounting shell fixedly mounted on a sleeve, the mounting shell is provided with a power-taking magnetic ring, a temperature detection assembly and a wireless transmission assembly, the power-taking magnetic ring is respectively connected with the temperature detection assembly and the wireless transmission assembly, to supply power to the corresponding assembly, the temperature detection assembly including a detection head for detecting a temperature and a controller for processing the detected temperature, the wireless transmission component is connected with the controller to transmit the detected temperature to the outside of the shielding case, when the joint of the sleeve and the bus is positioned in the shielding case, the temperature of the joint can be monitored, and the outer shell and the inner framework are respectively processed for assembly, so that the centralized assembly of the electricity taking magnetic ring, the temperature detection assembly and the wireless transmission assembly is realized.

Description

Temperature monitoring device for converter station valve hall

Technical Field

The invention relates to temperature monitoring equipment for a converter station valve hall, in particular to a temperature monitoring device for the converter station valve hall.

Background

The business turn over line position department in the converter station valve room, the copper bar yoke plate on generating line and the generating line sleeve pipe wiring end passes through bolted connection, for preventing to discharge, can install the shield cover in generating line and generating line sheathed tube junction usually, but this junction generates heat very easily, the outside temperature monitoring device commonly used can't monitor the inside condition of generating heat of shield cover like infrared thermal imaging etc. for the staff can't confirm the running state of this junction, takes place the incident very easily.

At present, a patent with an authorization publication number of CN 211183834U provides a temperature detection device, which adopts the principle that a power-taking magnetic ring is used for taking power from a conductor to provide electric energy for a wireless module, and the temperature of a connection part is collected through the wireless module.

Disclosure of Invention

The invention aims to provide a temperature monitoring device for a converter station valve hall, which aims to solve the problem that the temperature at the connecting position of a bus sleeve and a bus in the converter station valve hall cannot be effectively monitored.

The temperature monitoring device for the converter station valve hall adopts the following technical scheme:

this temperature monitoring device for converter station valve room, including being used for the installation shell of fixed mounting on the bus-bar sleeve pipe, install in the installation shell and get electric magnetic ring, temperature detect subassembly and wireless transmission subassembly, get the electric magnetic ring respectively with temperature detect subassembly with wireless transmission subassembly connects to provide the electric energy to it, temperature detect subassembly is including the detection head that is used for detecting the temperature and the controller that is used for handling the temperature that detects, wireless transmission subassembly with the controller is connected to convey the shield cover outside with the temperature that detects, the installation shell is including the inner frame that is used for installing and gets electric magnetic ring, temperature detect subassembly and wireless transmission subassembly and be used for the installation the shell body of inner frame.

Has the advantages that: the temperature monitoring device for the valve hall of the converter station adopts the assembled installation shell, when the temperature monitoring device is used, the installation shell is installed on a bus sleeve, the electricity taking magnetic ring on the inner framework obtains electric energy from a bus and then supplies the electric energy to the temperature detection assembly and the wireless transmission assembly, the detection head detects the temperature at the connecting position of the bus sleeve and the bus and transmits the detected temperature to the controller, the temperature detected by the controller is processed and then transmitted to the outside of the shielding cover through the wireless transmission assembly, when the connecting position of the bus sleeve and the bus is positioned in the shielding cover, the temperature at the connecting position of the bus sleeve and the bus can still be monitored, and the centralized assembly of the electricity taking magnetic ring, the temperature detection assembly and the wireless transmission assembly is realized by respectively processing the outer shell and the inner framework for assembly.

Furthermore, the whole installation shell is annular, and the installation shell and the electricity taking magnetic ring are both in a split buckling structure in the radial direction.

Has the advantages that: when the detection device is installed, the installation shell is only required to be disassembled along the radial direction of the installation shell, the butt buckles are installed on the bus sleeve, the bus and the bus sleeve do not need to be disassembled, and the installation efficiency is improved while the workload is saved.

Furthermore, the outer shell is of a split buckling structure in the axial direction.

Has the advantages that: when the inner framework is installed, the outer shell is opened along the axial direction of the outer shell, and the installation is very convenient.

Furthermore, a limiting spring is arranged between the inner framework and the outer shell so as to limit the inner framework in the radial direction.

Has the advantages that: the limiting spring has certain deformation capacity, and when an error occurs in the matching between the outer shell and the outer framework, the deformation amount of the limiting spring can be used for compensating the error, so that the inner framework and the outer shell can be assembled conveniently.

Further, the detection head is provided with a plurality of detection heads which are arranged at intervals along the circumferential direction of the mounting shell.

Has the advantages that: because the bus is provided with a plurality of connection positions with the bus sleeve, the temperature can be collected at multiple points through a plurality of detection heads arranged at intervals, and the detection precision is ensured.

Further, the detection head is a contact temperature sensor.

Has the beneficial effects that: the contact temperature sensor has higher measurement precision and lower power consumption.

Furthermore, a support plate fixedly connected with the bus sleeve is arranged on the mounting shell.

Has the advantages that: the backup pad can prevent that the relative generating of installation shell from sliding of generating of bus sleeve, avoids appearing getting the unable stable electricity of electricity magnetic ring and detecting the unable stable phenomenon that detects the temperature of head.

Furthermore, the supporting plate is an L-shaped plate, the vertical section of the supporting plate is connected with the end face of the mounting shell, and the horizontal section is provided with a mounting hole matched with a connecting bolt for connecting a bus and a bus sleeve.

Has the advantages that: a wiring area can be formed between the vertical surface and the horizontal surface of the L-shaped plate, and the vertical surface and the horizontal surface of the L-shaped plate are utilized to conveniently fix and protect the wires in the area; the backup pad is fixed with the generating line sleeve pipe through the bolt of connecting generating line and generating line sleeve pipe, firstly need not increase connection structure on the generating line sleeve pipe, secondly guarantees that whole monitoring devices and generating line sleeve pipe junction are close enough, also conveniently will detect the head and fix in the backup pad.

Furthermore, an energy storage capacitor is arranged between the electricity taking magnetic ring and the temperature detection assembly and between the electricity taking magnetic ring and the wireless transmission assembly.

Has the advantages that: the energy storage capacitor can improve the stability of the electric energy output by the electricity taking magnetic ring and ensure the stable operation of the whole monitoring device.

Further, the wireless temperature monitoring device also comprises an alarm which is connected with the wireless transmission assembly and used for sending out temperature abnormity alarm.

Has the advantages that: when the temperature of converter station valve room sleeve pipe position department is unusual, the alarm sends out the police dispatch newspaper, can make the staff in time know the abnormal conditions and handle it.

Drawings

Fig. 1 is a schematic structural diagram of a temperature monitoring device for a valve hall of a converter station provided by the invention;

FIG. 2 is a schematic structural diagram of a power line installed on the temperature monitoring device for the valve hall of the converter station in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 2;

FIG. 4 is a schematic view of section A-A of FIG. 2;

FIG. 5 is a schematic diagram of power supply and transmission of temperature data for the temperature monitoring device for the valve hall of the converter station of FIG. 1;

FIG. 6 is a schematic structural view of the left core sleeve of FIG. 1;

FIG. 7 is a schematic view of the structure of the left housing of FIG. 1;

FIG. 8 is a schematic structural view of the left and right housings connected by a connecting plate;

FIG. 9 is a schematic view showing the structure of the connection position of the left and right housings;

FIG. 10 is a schematic structural view of a bus bar sleeve;

FIG. 11 is a schematic view of the connection of a bus bar to a bus bar sleeve;

FIG. 12 is a schematic view of the temperature monitoring device for a valve hall of a converter station of FIG. 1 mounted on a bus bar sleeve;

FIG. 13 is a schematic diagram of the assembled temperature monitoring apparatus for the valve hall of the converter station of FIG. 1;

fig. 14 is a schematic view of the assembled shield case.

The names of the components corresponding to the corresponding reference numerals in the drawings are:

1. mounting a shell; 11. an outer housing; 111. a support plate mounting position; 12. a left housing; 13. a left housing upper cover; 14. a left housing lower cover; 15. a right housing; 16. an inner skeleton; 17. a left magnetic core sleeve; 18. a right magnetic core sleeve; 19. positioning the projection; 2. taking a power magnetic ring; 21. a right magnetic core strip; 22. a power taking circuit; 3. a limiting spring; 4. a module integration box; 41. a circuit board slot; 42. a circuit board; 43. a wireless transmission component; 44. a controller; 45. an energy storage capacitor; 46. a temperature measurement signal line; 47. a charging connection point; 48. a temperature signal input point; 5. a bus bar; 6. a bus bushing; 61. a pipeline terminal; 62. a copper bar yoke plate; 63. a connecting bolt; 64. a shield case; 7. a control center; 8. a support plate; 81. mounting holes; 82. a guide hole; 9. a connecting plate; 91. and connecting screws.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is to be noted that, in the embodiments of the present invention, relational terms such as "first" and "second", and the like, which may be present in the terms of the first and second, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the appearances of the phrase "comprising an … …" or similar limitation may be present without necessarily excluding the presence of additional identical elements in the process, method, article, or tool comprising the recited elements.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

Embodiment 1 of the temperature monitoring device for a converter station valve hall in the present invention:

as shown in fig. 1 to 14, the temperature detecting apparatus provided in this embodiment includes a mounting case 1, the mounting case 1 includes an inner frame for mounting a power-taking magnetic ring 2, a temperature detecting assembly and a wireless transmission assembly 43, and an outer housing 11 for mounting the inner frame 16, wherein the power-taking magnetic ring 2 is used for providing power to the temperature detecting assembly and the wireless transmission assembly 43, the temperature detecting assembly includes a detecting head for detecting temperature and a controller 44 for processing the detected temperature, and the wireless transmission assembly 43 transmits data processed by the controller 44 to the outside of a shielding case 64.

Specifically, the outer casing 1 is annular as a whole and adopts a snap-fit structure in a radial direction thereof, the outer casing 1 is formed by splicing a left outer casing 12 and a right outer casing 15, the left outer casing 12 and the right outer casing 15 are semicircular casings having identical structures, and in order to facilitate installation of the inner frame 16, the left outer casing 12 and the right outer casing 15 also adopt a snap-fit structure in an axial direction thereof, as shown in fig. 7, the left outer casing 12 includes a left outer casing upper cover 13 and a left outer casing lower cover 14, and the right outer casing 15 includes a right outer casing upper cover (not shown) and a right outer casing lower cover (not shown). The inner frame 16 comprises two arc-shaped magnetic core sleeves, one of the two magnetic core sleeves is a left magnetic core sleeve 17, the other one of the two magnetic core sleeves is a right magnetic core sleeve 18, the left magnetic core sleeve 17 and the right magnetic core sleeve 18 are integrally formed parts with the same structure, the structure of the left magnetic core sleeve 17 is shown in fig. 6, the left magnetic core sleeve 17 is used for being installed in the left shell 12, the right magnetic core sleeve is used for being installed in the right shell 15, the limiting springs 3 are installed on the outer sides of the left and right magnetic core sleeves, and when the left and right magnetic core sleeves are installed in the shell 1, the limiting springs 3 radially limit the left and right magnetic core sleeves. In other embodiments, the limit springs 3 may be installed in the left and

right housings

12 and 15, respectively.

In this embodiment, get electric magnetic ring 2 and include the magnetic core, and the magnetic core is whole to be ring shape and also to adopt the butt joint structure in its footpath, and the magnetic core is formed by left magnetic core strip and the concatenation of right magnetic core strip 21, and left magnetic core strip and right magnetic core strip 21 are two semicircular strip structures that the structure is the exact same, and left magnetic core strip cartridge is in left magnetic core cover 17, and right magnetic core strip 21 cartridge is in right magnetic core 18 covers. In addition, the left and right magnetic core sleeves are respectively provided with three module integration boxes 4 in the extending direction, the module integration boxes 4 on the left and right magnetic core sleeves are uniformly arranged at intervals, as shown in fig. 5, each module integration box 4 is internally provided with an energy storage capacitor 45, a wireless transmission assembly 43 and a controller 44, the energy storage capacitor 45 is connected with the magnetic core through a power taking line 22 so as to collect the taken electric energy, and the energy storage capacitor 45 is respectively connected with the wireless transmission assembly 43 and the controller 44 so as to provide the electric energy for the wireless transmission assembly 43 and the controller 44.

In this embodiment, the energy storage capacitor 45, the wireless transmission component 43 and the controller 44 are integrated on the same circuit board 42, and the wireless transmission component 43 is a ZigBee communication module. Correspondingly, as shown in fig. 3 and 4, the module integration box 4 is provided with a circuit board slot 41 for inserting a circuit board 42 therein. In addition, the power line 22 is a copper wire winding with an insulating sheath, the copper wire winding is wound outside the magnetic core through a left magnetic sleeve and a right magnetic sleeve and is electrically connected with a charging connection point 45 on the circuit board 42, when the temperature detection device in this embodiment is installed on the bus sleeve 6, the copper wire winding obtains electric energy through an electromagnetic induction principle, the obtained electric energy is charged to an energy storage capacitor 45 on the circuit board 42, and after the energy storage capacitor 45 is charged, power is supplied to the wireless transmission assembly 43 and the controller 44 on the circuit board 42.

In this embodiment, the pipeline terminal 61 on the bus bar sleeve 6 is provided with a copper bar yoke plate 62, and the bus bar 5 and the copper bar yoke plate are connected by a bolt. The detection head adopts a contact temperature sensor, in particular a thermal resistance temperature sensing element, and the thermal resistance temperature sensing element is connected with a temperature signal input point 48 on the circuit board 42 through a temperature measurement signal line 46. When the temperature detection device is installed on the bus sleeve 6, the thermal resistance temperature sensing element is contacted with the joint of the bus 5 and the copper bar yoke plate 62, when the temperature of the joint changes, heat is transferred to the thermal resistance temperature sensing element, the temperature of the thermal resistance temperature sensing element also changes, the thermal resistance temperature sensing element has different resistance values under different temperatures, the controller 44 detects the resistance change of the thermal resistance temperature sensing element through the temperature measurement signal line 46, and the temperature of the contact position is obtained through a corresponding algorithm. It should be noted that the algorithm is the prior art, and is not described herein again.

In this embodiment, when the mounting shell 1 is sleeved on the bus bar sleeve 6, the mounting shell 1 is fixed with the bus bar sleeve 6 through the supporting plate 8, as shown in fig. 8, three supporting plate mounting positions 111 are respectively arranged on the left outer shell 12 and the right outer shell 15, and when the inner frame 16 is mounted in the mounting shell 1, each supporting plate mounting position 111 corresponds to one module integration box 4. The whole platelike structure that is the L shape of backup pad 8, backup pad installation position 111 on the horizontal plane of backup pad 8 and the 11 terminal surfaces of shell body pass through bolted connection, are equipped with mounting hole 81 on the vertical face of backup pad 8, and mounting hole 81 cooperates the assembly with connecting bolt 63 of connecting bus 5 and copper bar yoke plate 62 to fix installation shell 1. The vertical surface of the supporting plate 8 is also provided with a cylindrical guide hole 82, and the thermal resistance temperature-sensing element enters the guide hole 82 and then contacts with the joint of the bus 5 and the copper bar yoke plate 62.

In this embodiment, only the circuit boards 42 are inserted into the circuit board slots 41 of the three module integration boxes 4, each circuit board 42 is connected with a thermal resistance temperature sensing element through a temperature measurement signal line 46, correspondingly, the outer shell 11 is provided with three support plates 8, the three support plates 8 correspond to the three module integration boxes 4 provided with the circuit boards 42, a wiring space is formed between the horizontal plane and the vertical plane of the support plates 8, and the temperature measurement signal lines 46 can be protected by using the wiring space.

In this embodiment, in order to ensure that the left magnetic core strip and the right magnetic core strip 21 can be accurately spliced into an annular magnetic core, the surface of the left shell 12 for being buckled with the right shell 15 is provided with the positioning protrusion 19, and correspondingly, the right shell 15 is provided with the positioning hole matched with the positioning protrusion 19. Further, in order to prevent the relative movement when the left and

right housings

12 and 15 are fastened together, as shown in fig. 8 and 9, the left and

right housings

12 and 15 are fixed by a connection plate 9 and a connection screw 91, the connection plate 9 is used to prevent the relative movement of the left and

right housings

12 and 15 in the radial direction, and the connection screw 91 is used to prevent the relative movement of the left and

right housings

12 and 15 in the axial direction.

In this embodiment, as shown in fig. 5, the transmission direction of the temperature data is as follows, the temperature data at the junction of the bus bar 5 and the copper bar yoke plate 62 is transmitted to the controller 44 after being measured by the thermal resistance temperature sensing element, the controller 44 transmits the temperature data to the wireless transmission assembly 43 after performing preliminary processing on the temperature data, the wireless output assembly 43 transmits the data to the control center 7, the control center 7 performs final arrangement and analysis on the transmitted temperature data to judge whether the temperature at the junction is abnormal, when the control center 7 detects that the temperature at the junction is abnormal, the alarm inside the control center 7 sends out an abnormal temperature alarm to prompt a worker to perform fault check.

When the temperature monitoring device for the valve hall of the converter station in the embodiment is used, as shown in fig. 10 and 11, the bus bar and the copper bar yoke plate 62 are firstly connected through the connecting bolt 63, but the connecting bolt 63 closest to one side of the bus bar sleeve is not installed, as shown in fig. 12 and 13, then the assembled temperature monitoring device is split and buckled on the bus bar sleeve 6 along the radial direction, and is fixed by using the connecting plate 9 and the connecting screw 91, so that the supporting plate 8 on the installation shell 1 is fixed with the bus bar sleeve 6 through the connecting bolt 63 closest to one side of the bus bar sleeve 6, and finally, as shown in fig. 14, the shielding cover 64 is installed at the connection position of the bus bar 5 and the bus bar sleeve 6.

Embodiment 2 of the temperature monitoring device for a converter station valve hall in the present invention:

the difference between this embodiment and embodiment 1 lies in getting electric magnetic ring and inner frame, and in embodiment 1, getting electric magnetic ring and inner frame are the structure of buckling in its radial direction. In this embodiment, the electricity-taking magnetic ring is an integrated ring structure, and the inner framework is a buckling structure in the axial direction.

Embodiment 3 of the temperature monitoring device for a converter station valve hall in the present invention:

the present embodiment is different from embodiment 1 in that the outer housing, and in embodiment 1, the support plate is an L-shaped plate. In this embodiment, the supporting plate is a flat plate.

Embodiment 4 of the temperature monitoring device for a converter station valve hall in the present invention:

the present embodiment is different from embodiment 1 in that the outer housing has a snap-fit structure in the axial direction of the outer housing in embodiment 1. In this embodiment, the outer casing is an integral structure in the axial direction, and the outer side of the outer casing is provided with an inner frame mounting opening.

Embodiment 5 of the temperature monitoring device for a converter station valve hall in the present invention:

the present embodiment is different from embodiment 1 in the number of the temperature-sensitive elements, and in embodiment 1, the number of the temperature-sensitive elements is three. In this embodiment, only one of the six module integration boxes on the left and right magnetic core sleeves is provided with a circuit board, and the circuit board is connected with a thermal resistance temperature sensing element through a temperature measuring signal line.

Embodiment 6 of the temperature monitoring device for a converter station valve hall according to the present invention:

the present embodiment is different from embodiment 1 in the type of the detection head, and in embodiment 1, the detection head is a surface mount type temperature sensor. In this embodiment, the detection head is an infrared temperature sensor.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. A temperature monitoring device for a converter station valve hall comprises a mounting shell (1) fixedly mounted on a bus sleeve (6), the installation shell (1) is internally provided with a power-taking magnetic ring (2), a temperature detection assembly and a wireless transmission assembly (43), the electricity taking magnetic ring (2) is respectively connected with the temperature detection assembly and the wireless transmission assembly (43), to supply power thereto, the temperature detection assembly including a detection head for detecting a temperature and a controller (44) for processing the detected temperature, the wireless transmission assembly (43) is connected with the controller (44) to transmit the detected temperature to the outside of the shielding case (64), the temperature detection and wireless transmission device is characterized in that the mounting shell comprises an inner framework (16) used for mounting the electricity taking magnetic ring (2), the temperature detection assembly and the wireless transmission assembly (43) and an outer shell (11) used for mounting the inner framework (16).

2. The temperature monitoring device for the converter station valve hall according to claim 1, wherein the mounting shell (1) is annular as a whole, and the mounting shell (1) and the electricity taking magnetic ring (2) are in split buckling structures in the radial direction.

3. Temperature monitoring arrangement according to claim 1, characterised in that the outer housing (11) is of split snap-in construction in its axial direction.

4. A temperature monitoring arrangement for a converter station valve hall according to claim 3, characterized in that a limiting spring (3) is arranged between the inner frame (16) and the outer housing (11) to limit the inner frame (16) in the radial direction.

5. A temperature monitoring arrangement according to any of claims 1-4, characterized in that said sensing head is plural and arranged at intervals along the circumference of said mounting housing (1).

6. The temperature monitoring device for a valve hall of a converter station according to claim 5, characterized in that said detection head is a contact temperature sensor.

7. A temperature monitoring arrangement for a converter station valve hall according to any of claims 1-4, characterized in that the mounting housing (1) is provided with a support plate (8) for fixed connection with a bus bar bushing (6).

8. The temperature monitoring device for the valve hall of the converter station according to claim 7, characterized in that the supporting plate (8) is an L-shaped plate, the vertical section of the supporting plate (8) is connected with the end surface of the mounting shell (1), and the horizontal section is provided with mounting holes (81) for matching with the connecting bolts (63) for connecting the bus bar (5) and the bus bar sleeve (6).

9. The temperature monitoring device for the converter station valve hall according to any one of claims 1 to 4, characterized in that an energy storage capacitor (45) is arranged between the electricity taking magnetic ring (2) and the temperature detection assembly and the wireless transmission assembly (43).

10. A temperature monitoring device for a valve hall of a converter station according to any of claims 1 to 4, characterized by further comprising an alarm connected to the wireless transmission assembly (43) for issuing a temperature anomaly alarm.