Disclosure of Invention
The invention provides a thermocouple connector and a thermocouple structure, which can reduce the probability that the whole structure of the thermocouple connector and a thermocouple after welding is affected by the vibration of a unit and improve the shock resistance of the thermocouple connector.
Embodiments of the invention may be implemented as follows:
embodiments of the present invention provide a thermocouple connector, comprising:
the socket comprises a first insulator assembly, a first shell and a first extension part, wherein the first insulator assembly is arranged on the first shell, the first shell is connected with the first extension part, the first extension part and the first shell are positioned on the same straight line, and the first extension part is used for being connected with a thermocouple;
the plug, the plug includes second insulator subassembly, second shell and second extension, second insulator subassembly set up in the second shell, second insulator subassembly with first insulator subassembly assembly, the second shell with second extension is connected, second extension with the second shell is located the same straight line, second extension is used for being connected with the thermocouple.
Optionally, the first extension part is a hollow structure, one end of the first extension part is connected with the first shell, and the other end of the first extension part is connected with the thermocouple.
Optionally, the first extension is rectangular shape structure, the one end opening of first extension sets up, and the open end with first shell fixed connection, the other end of first extension is equipped with first connecting hole, first connecting hole and thermocouple connection.
Optionally, the second extension part is a hollow structure, one end of the second extension part is connected with the second housing, and the other end of the second extension part is connected with the thermocouple.
Optionally, the second extension is rectangular shape structure, the one end opening of second extension sets up, and the open end with second shell fixed connection, the other end of second extension is equipped with the second connecting hole, the second connecting hole is connected with the thermocouple.
Optionally, the first insulator assembly includes a first female pin core, a first male pin core, a first transition housing, the first transition housing and the first housing are connected, and the first female pin core and the first male pin core are both installed in the first transition housing.
Optionally, the second insulator assembly includes a second female pin core, a second male pin core, a second transition housing, the second transition housing and the second housing are connected, the second female pin core and the second male pin core are both installed in the second transition housing, the second female pin core and the first male pin core are matched, and the second male pin core and the first female pin core are matched.
Optionally, a clasping member is sleeved outside the second female needle core.
Optionally, the socket is provided with a locking sleeve, the locking sleeve is located at one end of the first transition housing away from the first extension portion, and the locking sleeve is matched with the second housing.
The embodiment of the invention also provides a thermocouple structure, which comprises a thermocouple and a plurality of thermocouple connectors, wherein the thermocouple is provided with a multi-section structure, and two adjacent sections of structures are connected through the thermocouple connectors.
The thermocouple connector and the thermocouple structure of the embodiment of the invention have the beneficial effects that:
the thermocouple connector comprises a socket and a socket, wherein the socket comprises a first insulator assembly, a first shell and a first extension part, the first insulator assembly is arranged on the first shell, the first shell is connected with the first extension part, the first extension part and the first shell are positioned on the same straight line, and the first extension part is used for being connected with a thermocouple; the plug includes second insulator subassembly, second shell and second extension, and second insulator subassembly sets up in the second shell, and second insulator subassembly and first insulator subassembly assembly, second shell and second extension are connected, and second extension and second shell are located the same straight line, and second extension is used for being connected with the thermocouple. When the thermocouple connector is used, the first insulator assembly is arranged on the first shell, the first shell and the first extension portion are connected and located on the same straight line, the second insulator assembly is arranged on the second shell, the second shell and the second extension portion are connected and located on the same straight line, the first extension portion and the second extension portion can respectively prolong the length of the first shell and the length of the second shell, the length of a supporting surface can be increased, a welding line during welding can penetrate through the first extension portion and the second extension portion, tail suspension is avoided, the first extension portion and the second extension portion can be welded with a thermocouple to form an integral structure, the phenomenon of virtual welding caused by loosening of welding spots due to the influence of unit vibration on the welding line is avoided, and the earthquake resistance of the thermocouple connector is improved.
The thermocouple structure comprises a thermocouple and a plurality of thermocouple connectors, wherein the thermocouple is of a multi-section structure, and two adjacent sections of structures are connected through the thermocouple connectors. When the thermocouple connector is used, the first insulator assembly is arranged on the first shell, the first shell and the first extension portion are connected and located on the same straight line, the second insulator assembly is arranged on the second shell, the second shell and the second extension portion are connected and located on the same straight line, the first extension portion and the second extension portion can respectively prolong the length of the first shell and the length of the second shell, the length of a supporting surface can be increased, a welding line during welding can penetrate through the first extension portion and the second extension portion, tail suspension is avoided, the first extension portion and the second extension portion can be welded with a thermocouple to form an integral structure, the phenomenon of virtual welding caused by loosening of welding spots due to the influence of unit vibration on the welding line is avoided, and the earthquake resistance of the thermocouple connector is improved.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the 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 invention, as 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 made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The core thermocouples of the nuclear power plant are used for core coolant temperature monitoring and are key devices for core parameter monitoring. Because of the special use environment, the thermocouple is designed to be of a sectional structure. The core thermocouple is a K-type armoured thermocouple with the diameter of about 3.17mm and the length of about 6.5-9.2 m, and the precision is +/-1.5 ℃. Because the thermocouple is of a multi-section structure, the multi-section thermocouples are connected and matched by adopting connectors.
The thermocouple connector in the related art has the problems that the whole structure is easily affected by unit vibration and the shock resistance is low.
Referring to fig. 1-3, the present embodiment provides a thermocouple structure, which includes a thermocouple and a plurality of thermocouple connectors 100, wherein the thermocouple has a multi-stage structure, and two adjacent stages of structures are connected by the thermocouple connectors 100. The thermocouple structure can effectively improve the technical problems, reduce the probability that the whole structure of the thermocouple connector 100 and the welded thermocouple is affected by the vibration of the unit, and improve the shock resistance of the thermocouple connector 100.
Referring to fig. 1 to 3, the thermocouple connector 100 includes a socket 10 and a plug 20, the socket 10 includes a first insulator assembly 11, a first housing 12 and a first extension 13, the first insulator assembly 11 is disposed on the first housing 12, the first housing 12 is connected with the first extension 13, the first extension 13 is aligned with the first housing 12, the first extension 13 is used for connecting with a thermocouple, the plug 20 includes a second insulator assembly 21, a second housing 22 and a second extension 23, the second insulator assembly 21 is disposed on the second housing 22, the second insulator assembly 21 is assembled with the first insulator assembly 11, the second housing 22 is connected with the second extension 23, the second extension 23 is aligned with the second housing 22, and the second extension 23 is used for connecting with a thermocouple.
Wherein the plug 20 and the receptacle 10 are removably coupled.
Specifically, during the unit operation of nuclear power plant, thermocouple in prior art is multistage structure, specifically divide into four-section structure, and the hookup location of adjacent two sections can vibrate along with pressure vessel a little, and the welding between connector and the thermocouple sinle silk can receive vibration influence, leads to the solder joint to become flexible and virtual joint. In order to solve the technical problem, when the thermocouple connector 100 provided in this embodiment is used, the first insulator assembly 11 is disposed on the first housing 12, the first housing 12 and the first extension portion 13 are connected and located on the same straight line, the second insulator assembly 21 is disposed on the second housing 22, the second housing 22 and the second extension portion 23 are connected and located on the same straight line, the first extension portion 13 and the second extension portion 23 can respectively extend the lengths of the first housing 12 and the second housing 22, the length of the supporting surface can be increased, the welding line during welding can pass through the first extension portion 13 and the second extension portion 23, tail suspension is avoided, and the first extension portion 13 and the second extension portion 23 can be welded with the thermocouple to form an integral structure, so that the phenomenon of virtual welding caused by loosening of welding spots due to the influence of unit vibration of the welding line in a suspension state is avoided, and the earthquake resistance of the thermocouple connector 100 is improved.
Further, the first extension 13 and the second extension 23 can facilitate the connection of the thermocouple connector 100 and the thermocouple, and are connected with an external fixing structure, which is more convenient to use.
In this embodiment, the first extension 13 has a hollow structure, one end of the first extension 13 is connected to the first housing 12, and the other end of the first extension 13 is connected to the thermocouple.
Specifically, the first extension portion 13 is of a strip-shaped structure, one end of the first extension portion 13 is opened, the opening end is fixedly connected with the first housing 12, a first connecting hole is formed in the other end of the first extension portion 13, and the first connecting hole is connected with the thermocouple. Wherein, the aperture of first connecting hole is less than the internal diameter of first extension 13 for the aperture of first connecting hole can adapt to the shape of welding line more, further avoids the too big degree of rocking of welding line, improves shock resistance.
Further, the open end of the first extension 13 is welded to the first housing 12.
It will be appreciated that the second extension 23 has a hollow structure, one end of the second extension 23 is connected to the second housing 22, and the other end of the second extension 23 is connected to the thermocouple.
Specifically, the second extension part 23 is of a strip-shaped structure, one end of the second extension part 23 is opened, the opening end is fixedly connected with the second housing 22, and the other end of the second extension part 23 is provided with a second connecting hole which is connected with the thermocouple. Likewise, the aperture of the second connecting hole is smaller than the inner diameter of the second extension part 23, so that the aperture of the second connecting hole can be more adaptive to the shape of the welding line, the excessive shaking degree of the welding line is further avoided, and the anti-seismic performance is improved.
It should be further noted that the first insulator assembly 11 includes a first female pin 111, a first male pin 112, and a first transition housing 113, where the first transition housing 113 is connected to the first housing 12, and the first female pin 111 and the first male pin 112 are both mounted on the first transition housing 113.
The number of the first female needle cores 111 and the first male needle cores 112 is plural, specifically 1-4 may be provided, and the materials of the first female needle cores 111 and the first male needle cores 112 may be NICR or NIAL.
Further, the first insulator assembly 11 also includes a ceramic, which may be an A-97 or A-99 material. The ceramic is disposed outside of the first and second female cores 111 and 211. For further achieving an insulating effect.
More specifically, the first female pin 111, the first male pin 112, the ceramic, and the first transition housing 113 are all integrally welded by a ceramic metallization process, and are assembled to the first housing 12 by a laser welding process.
In this embodiment, the second insulator assembly 21 includes a second female pin 211, a second male pin 212, and a second transition housing 213, where the second transition housing 213 is connected to the second housing 22, the second female pin 211 and the second male pin 212 are both mounted on the second transition housing 213, the second female pin 211 is mated with the first male pin 112, and the second male pin 212 is mated with the first female pin 111.
Likewise, the number of the second female needle cores 211 and the second male needle cores 212 is plural, specifically 1-4 may be provided, and the materials of the second female needle cores 211 and the second male needle cores 212 may be NICR or NIAL.
Further, the second insulator assembly 21 also includes a ceramic, which may be an A-97 or A-99 material. The ceramic is disposed outside the second female pin 211 and the second female pin 211. For further achieving an insulating effect.
In order to maintain good contact performance between the plug 20 and the socket 10 during the connection mating process, the outer portion of the second female pin core 211 is sleeved with a clasping member 30. The outer part of the first female needle core 111 is also provided with a clasping member 30. The clasping member 30 in this embodiment employs a wire clip, with the wire clip being provided outside the first female needle core 111 and the second female needle core 211.
In this embodiment, the first insulator assembly 11 and the second insulator assembly 21 are both made of ceramic metal materials, so that the insulation performance is further improved, the insulation index can reach 20gΩ (100 VDC), the temperature resistance can be further improved, and the limit temperature resistance can reach 600 ℃.
Further, the socket 10 is provided with a locking sleeve 40, the locking sleeve 40 being located at the end of the first transition housing 113 remote from the first extension 13, the locking sleeve 40 being engaged with the second housing 22.
Specifically, the inner wall of the locking sleeve 40 is provided with two cylindrical locking pins which are symmetrically arranged, wherein the outer wall of the second housing 22 is provided with a spiral groove, the cylindrical locking pins of the locking sleeve 40 are matched with the spiral groove under the condition that the plug 20 and the socket 10 are connected and matched, a wave plate spring is arranged between the locking sleeve 40 and the first housing 12, and the locking pins can be tensioned in the cylindrical spiral groove by the spring force of the wave plate spring, so that the purpose of reliable locking is achieved.
Further, the thermocouple connector 100 further includes a spring energy storage ring 50, the spring energy storage ring 50 is mounted on the first housing 12 of the socket 10, and the spring energy storage ring 50 is connected with the second housing 22 through the locking sleeve 40 and is in a compressed state, thereby sealing the socket 10 and the plug 20.
The spring energy storage ring 50 in this embodiment may be O-shaped, C-shaped or delta-shaped. The present invention is not particularly limited herein.
In summary, the embodiment of the invention provides a thermocouple connector 100 and a thermocouple structure, wherein the thermocouple connector 100 includes a socket 10 and a socket 10, the socket 10 includes a first insulator assembly 11, a first housing 12 and a first extension portion 13, the first insulator assembly 11 is disposed on the first housing 12, the first housing 12 is connected with the first extension portion 13, the first extension portion 13 and the first housing 12 are located in the same line, and the first extension portion 13 is used for connecting with a thermocouple; the plug 20 includes a second insulator assembly 21, a second housing 22, and a second extension 23, the second insulator assembly 21 is disposed on the second housing 22, the second insulator assembly 21 is assembled with the first insulator assembly 11, the second housing 22 is connected with the second extension 23, the second extension 23 is aligned with the second housing 22, and the second extension 23 is used for connection with a thermocouple. When the thermocouple connector 100 is used, the first insulator assembly 11 is arranged on the first shell 12, the first shell 12 and the first extension part 13 are connected and located on the same straight line, the second insulator assembly 21 is arranged on the second shell 22, the second shell 22 and the second extension part 23 are connected and located on the same straight line, the first extension part 13 and the second extension part 23 can respectively extend the length of the first shell 12 and the second shell 22, the length of a supporting surface can be increased, a welding line during welding can penetrate through the first extension part 13 and the second extension part 23, tail suspension is avoided, the first extension part 13 and the second extension part 23 can be welded with a thermocouple to form an integral structure, a virtual welding phenomenon caused by loosening of welding spots due to the influence of unit vibration on the welding line in a suspension state is avoided, and the earthquake resistance of the thermocouple connector 100 is improved.
The thermocouple structure comprises a thermocouple and a plurality of thermocouple connectors 100, wherein the thermocouple has a multi-section structure, and two adjacent sections of structures are connected through the thermocouple connectors 100. When the thermocouple connector 100 is used, the first insulator assembly 11 is arranged on the first shell 12, the first shell 12 and the first extension part 13 are connected and located on the same straight line, the second insulator assembly 21 is arranged on the second shell 22, the second shell 22 and the second extension part 23 are connected and located on the same straight line, the first extension part 13 and the second extension part 23 can respectively extend the length of the first shell 12 and the second shell 22, the length of a supporting surface can be increased, a welding line during welding can penetrate through the first extension part 13 and the second extension part 23, tail suspension is avoided, the first extension part 13 and the second extension part 23 can be welded with a thermocouple to form an integral structure, a virtual welding phenomenon caused by loosening of welding spots due to the influence of unit vibration on the welding line in a suspension state is avoided, and the earthquake resistance of the thermocouple connector 100 is improved.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.