CN115064292A - Spherical component lifting device - Google Patents

Abstract

The invention discloses a spherical element lifting device, which comprises: a lifting housing having an inner lifting cavity; the first end of the inlet connecting pipe is fixed at the lower end of the lifting shell, and the inlet connecting pipe is downwards inclined from the second end to the first end; the first end of the outlet connecting pipe is fixed at the upper end of the lifting shell, and the outlet connecting pipe is downwards inclined from the first end to the second end; the lifting car is arranged in the inner lifting cavity in a sliding manner and is provided with a spherical element accommodating cavity, when the lifting car slides to the position of the inlet connecting pipe, the spherical element accommodating cavity is communicated with the inlet connecting pipe, and when the lifting car slides to the position of the outlet connecting pipe, the spherical element accommodating cavity is communicated with the outlet connecting pipe; and the linear driving device is used for driving the lifting car to slide along the inner lifting cavity. The invention has simple structure, can realize non-contact transmission, avoids collision and damage to the spherical element, and has simple and reliable equipment and low manufacturing cost.

Description

Spherical element lifting device

Technical Field

The invention relates to the technical field of ball bed high-temperature gas cooled reactors, in particular to a spherical element lifting device.

Background

The ball bed high temperature gas cooled reactor adopts spherical fuel element with diameter of 60 mm, the whole fuel element is divided into two areas, central fuel area and outer shell area, the diameter of the fuel area is 50 mm, and the outer part is graphite shell layer with thickness of 5 mm.

The pebble-bed high-temperature gas cooled reactor carries out non-stop refueling, a large number of spherical fuel elements are discharged from a reactor core every day, and are reloaded into the reactor core after fuel consumption measurement or are led out to a spent fuel storage tank. In the prior art, a helium compressor is required for providing a pneumatic transmission power source required for lifting a spherical fuel element in a high-temperature gas cooled reactor nuclear power plant for loading and unloading circulation, the lifting of the fuel ball (namely the spherical fuel element) is a coupling process with complex air flow transmission, gravity and pipeline drift diameter, only one fuel ball can be lifted each time, and the operation time has certain uncertainty. The related pneumatic conveying circulation loop is not an independent loop and has airflow exchange with the reactor core loop at the top and the bottom of the reactor. In order to stabilize the lifting of the fuel ball, flow blocking devices are arranged at the top and the bottom of the reactor, and related coordination control is difficult.

Therefore, how to accomplish the lifting action of the spherical fuel element without using a pneumatic conveying mode to avoid the problem of high manufacturing cost of a complex pneumatic conveying system is a technical problem to be solved by the technical personnel in the field.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a spherical element lifting device, which can complete the lifting action of spherical fuel elements without using pneumatic conveying manner, and achieve the effects of low cost and simple structure.

In order to achieve the purpose, the invention provides the following technical scheme:

a spherical element lifting device comprising:

a lifting housing having an inner lifting cavity;

the first end of the inlet connecting pipe is fixed at the lower end of the lifting shell and is communicated with the inner lifting cavity, and the inlet connecting pipe is downwards inclined from the second end to the first end and is used for feeding the spherical elements;

the first end of the outlet connecting pipe is fixed at the upper end of the lifting shell and is communicated with the inner lifting cavity, and the outlet connecting pipe is downwards inclined from the first end to the second end and is used for outputting a spherical element;

the lifting car is slidably arranged in the inner lifting cavity and is provided with a spherical element accommodating cavity, the spherical element accommodating cavity is communicated with the inlet connecting pipe when the lifting car slides to the position of the inlet connecting pipe, and the spherical element accommodating cavity is communicated with the outlet connecting pipe when the lifting car slides to the position of the outlet connecting pipe;

and the linear driving device is used for driving the lifting car to slide along the inner lifting cavity.

Optionally, in the spherical element lifting device, an axis of the inlet connection pipe and an axis of the outlet connection pipe are located in the same plane and located on two sides of the lifting housing respectively;

the spherical element accommodating cavity is a cylindrical cavity, and the height of one end close to the inlet connecting pipe is higher than that of the other end.

Optionally, in the spherical element lifting device, an axis of the spherical element accommodating cavity is parallel to an axis of the inlet connection pipe;

the axis of the spherical element accommodating cavity is parallel to the axis of the outlet connecting pipe.

Optionally, in the ball element lifting device, the diameter of the ball element receiving cavity is D0, the inner diameter of the inlet connecting pipe is D1, and the inner diameter of the outlet connecting pipe is D2, so that D0 ═ D1+ S ═ D2+ S, where 3mm ≦ S ≦ 6 mm.

Alternatively, in the above-described spherical element hoisting device, the hoisting cage is slidably fitted with the inner hoisting chamber by a guide mechanism.

Optionally, in the spherical element hoisting device, the guide mechanism includes a guide groove provided on one of the inner hoisting chamber and the hoisting car, and a guide key provided on the other of the inner hoisting chamber and the hoisting car, the guide key is in sliding fit with the guide groove, and an extending direction of the guide groove is parallel to an extending direction of the inner hoisting chamber.

Optionally, in the spherical element lifting device, the two guide grooves are arranged on the inner wall of the inner lifting cavity and are symmetrical along the axis of the inner lifting cavity, and the positions of the inlet connecting pipe and the outlet connecting pipe are avoided by the guide grooves;

the direction key for set up in two on the promotion car outer wall, and follow the axis central symmetry who promotes the car, the direction key avoids the position in spherical element holds the chamber.

Optionally, in the spherical element lifting device, the linear driving device is a linear motor disposed at the top of the lifting housing, and a first end of a driving rod of the linear motor is connected to the lifting car.

Optionally, in the spherical element lifting device, a dovetail groove is arranged on the lifting car, and the driving rod is provided with an insertion guide rail matched with the dovetail groove.

Optionally, in the above spherical element lifting device, the linear motor includes:

the stator shell is hermetically connected to the top of the lifting shell;

a linear motor stator disposed in the stator housing

The driving rod is a rotor of the linear motor and penetrates through the center of the stator of the linear motor.

Optionally, in the spherical element lifting device, a first end of the stator housing is hermetically connected to the lifting housing, a second end of the stator housing is hermetically connected to a first end of the upper stroke housing, a second end of the upper stroke housing is a closed end, and the upper stroke housing has a driving rod upper stroke cavity for providing a stroke space for the second end of the driving rod.

Optionally, in the spherical element lifting device, a position sensor for detecting a stroke position of the driving rod is provided on the upper stroke housing to obtain a position of the lifting car.

Optionally, in the spherical element lifting device, the second end of the stator housing is a first flange, and the first end of the upper stroke housing is an upper end cover connected to the first flange through a fastener.

Optionally, in the spherical element lifting device, a second flange is arranged at the bottom of the lifting housing, and the second flange is connected with a lower end cover through a fastener in a sealing manner;

the top of the lifting shell is provided with a third flange plate, the first end of the stator shell is provided with a fourth flange plate, and the third flange plate is connected with the fourth flange plate in a sealing mode through a fastening piece.

Optionally, in the spherical element lifting device, the second flange plate and the lower end cover, the third flange plate and the fourth flange plate, and the first flange plate and the upper end cover are all connected in a sealing manner through metal sealing rings.

Optionally, in the spherical element lifting device, the second end of the stator housing is provided with a lower linear bearing for sliding fit of the driving rod;

the first end of the stator shell is provided with an opening for installing the stator of the linear motor, a support body is detachably arranged at the opening, and the support body is provided with an upper linear bearing which is in sliding fit with the driving rod.

Alternatively, in the spherical element lifting device, a side surface of the stator housing has a side pipe perpendicular to an axis of the stator housing, an end of the side pipe is hermetically fitted with an electrical penetration piece for passing through a power supply line through a flange, and a stator coil connection wire of the linear motor stator is connected to the power supply line in the side pipe.

Optionally, in the spherical element lifting device, the spherical element lifting device further includes an air blowing port connecting pipe which is arranged on the lifting housing and is communicated with the inner lifting cavity, and the air blowing port connecting pipe is used for blowing air to the outlet connecting pipe so that the spherical element flows out of the outlet connecting pipe.

Optionally, in the spherical element lifting device, the air blowing port connecting pipe and the outlet connecting pipe are arranged coaxially.

Optionally, in the above spherical element lifting device, further comprising:

a ball entry counter for detecting the number of the spherical elements passing through the inlet connection tube;

and the ball outlet counter is used for detecting the number of the spherical elements passing through the outlet connecting pipe, and when the spherical elements detected by the ball outlet counter are less than the number of the spherical elements detected by the ball inlet counter, the air blowing port connecting pipe blows air to the outlet connecting pipe.

The spherical element lifting device provided by the invention is provided with the lifting shell, the lifting shell is provided with the inner lifting cavity, the lifting shell is connected with the inlet connecting pipe and the outlet connecting pipe, and spherical elements can be fed into the inner lifting cavity through the inlet connecting pipe. The lifting car is arranged in the inner lifting cavity, and the lifting car can slide up and down along the inner lifting cavity under the driving of the linear driving device. When the spherical element needs to be lifted, the lifting car needs to be moved to a position corresponding to the inlet connecting pipe, then the spherical element is placed in the inlet connecting pipe, the spherical element rolls towards the lifting car under the action of gravity until the spherical element rolls into the spherical element accommodating cavity of the lifting car, then the lifting car is driven to move upwards through the linear driving device until the spherical element stops moving to the position corresponding to the outlet connecting pipe of the lifting car, and the spherical element rolls towards the outlet connecting pipe under the action of gravity until the spherical element rolls out of the spherical element lifting device through the outlet connecting pipe. The lifting car is used as a carrier, the linear driving device is used as a driving source, and the lifting action of the spherical element from the lower part to the higher part can be finished.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a cross-sectional view of a spherical element lifting device according to an embodiment of the present invention;

fig. 2 is a partial longitudinal sectional view of the elevator car and the outlet connection pipe according to the embodiment of the present invention;

fig. 3 is a longitudinal section along the guide key of the hoisting car according to the embodiment of the invention;

fig. 4 is a cross-sectional view at the elevator car of the disclosed embodiment of the invention;

the meaning of the various reference numerals in figures 1 to 4 is as follows:

1 is the lower end cover, 2 is the promotion casing, 201 is interior promotion chamber, 202 is the guide way, 3 is the promotion car, 31 is left side guide key, 32 is right side guide key, 301 is spherical element and holds the chamber, 4 is the actuating lever, 5 is the ball counter, 6 is the outlet connection pipe, 7 is the electric penetration piece, 8 is the stator casing, 9 is the upstroke casing, 901 is actuating lever upper portion stroke chamber, 10 is position sensor, 11 is the upper end cover, 12 is upper portion linear bearing, 13 is the supporter, 14 is the linear electric motor stator, 15 is lower part linear bearing, 16 is the metal sealing washer, 17 is the mouth takeover of blowing, 18 is the ball counter, 19 is the inlet connection pipe, 20 is spherical element, 21 is the fastener.

Detailed Description

The core of the invention is to provide a spherical element lifting device, which can complete the lifting action of spherical fuel elements without using a pneumatic conveying mode so as to avoid the problems of complex system and high cost caused by the pneumatic conveying mode.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, an embodiment of the present invention discloses a spherical element lifting device including a lifting housing 2, an inlet connection pipe 19, an outlet connection pipe 6, a lifting cage 3, and a linear driving device.

The lifting shell 2 has an internal lifting cavity 201, the lifting shell 2 being the main channel for the delivery of the spherical element 20, which is intended to be arranged at the position where the spherical element 20 needs to be lifted. The first end of the inlet connection pipe 19 is fixed to the lower end of the lifting shell 2 and is communicated with the inner lifting cavity 201, the inlet connection pipe 19 is inclined downwards from the second end to the first end, and is used for feeding the spherical element 20, namely, the height of one end of the inlet connection pipe 19 communicated with the inner lifting cavity 201 is lower than that of the other end, so that after the spherical element 20 is fed from the second end of the inlet connection pipe 19, the spherical element 20 can automatically roll towards the first end of the inlet connection pipe 19 under the action of gravity.

The first end of outlet connecting pipe 6 is fixed in the upper end of lifting housing 2, and with interior lift chamber 201 intercommunication, outlet connecting pipe 6 is by first end to the direction of second end, the downward sloping for export spherical element 20, the height of the one end that outlet connecting pipe 6 and interior lift chamber 201 intercommunication is higher than the other end promptly, make spherical element 20 after rolling into by the first end of outlet connecting pipe 6, spherical element 20 can be under the action of gravity, the direction of the second end of outlet connecting pipe 6 rolls automatically. The inlet connection pipe 19 is located at the beginning of the lifting of the spherical element 20 and the outlet connection pipe 6 is located at the end of the lifting of the spherical element 20.

The hoisting car 3 is used to transport the spherical element 20 from the starting point of the hoisting (where the inlet connection tube 19 is located) to the end point of the hoisting (where the outlet connection tube 6 is located). The lifting car 3 is slidably arranged in the inner lifting cavity 201 and is provided with a spherical element accommodating cavity 301, when the lifting car 3 slides to the position of the inlet connecting pipe 19, the spherical element accommodating cavity 301 is communicated with the inlet connecting pipe 19, and the spherical element 20 can automatically roll towards the first end of the inlet connecting pipe 19 under the action of gravity after being fed by the second end of the inlet connecting pipe 19 until rolling into the spherical element accommodating cavity 301. Then, the spherical element 20 rolling into the spherical element accommodating cavity 301 is lifted upwards to the position of the outlet connecting pipe 6 by lifting the car 3, the spherical element accommodating cavity 301 is communicated with the outlet connecting pipe 6, the spherical element 20 rolls into the outlet connecting pipe 6 from the first end, and can automatically roll towards the direction of the second end of the outlet connecting pipe 6 under the action of gravity until the spherical element rolls out of the outlet connecting pipe 6, and the lifting action of the spherical element 20 from the starting point to the end point is completed.

The linear driving device is used for driving the lifting car 3 to slide along the inner lifting cavity 201, and the driving device capable of providing a linear driving stroke in the prior art has various structures, such as a linear motor, a screw rod mechanism, a rack mechanism and the like.

The spherical element 20 lifting device provided by the invention is provided with a lifting shell 2, wherein the lifting shell 2 is provided with an inner lifting cavity 201, an inlet connecting pipe 19 and an outlet connecting pipe 6 are connected to the lifting shell 2, and the spherical element 20 can be fed into the inner lifting cavity 201 through the inlet connecting pipe 19. A lifting car 3 is arranged in the inner lifting cavity 201, and the lifting car 3 can slide along the inner lifting cavity 201 under the drive of the linear driving device. When the spherical element 20 needs to be lifted, the lifting car 3 needs to be moved to a position corresponding to the inlet connecting pipe 19, then the spherical element 20 is placed in the inlet connecting pipe 19, under the action of gravity, the spherical element 20 rolls towards the lifting car 3 until the spherical element 20 rolls into the spherical element accommodating cavity 301 of the lifting car 3, then the lifting car 3 is driven by the linear driving device to move upwards until the spherical element stops moving to a position corresponding to the lifting car 3 and the outlet connecting pipe 6, and the spherical element 20 rolls towards the outlet connecting pipe 6 under the action of gravity until the spherical element is rolled out of the spherical element lifting device by the outlet connecting pipe 6. According to the invention, the lifting of the spherical elements 20 from the low position to the high position can be completed by taking the lifting car 3 as a carrier and taking the linear driving device as a driving source, compared with the prior art, a pneumatic conveying mode is not needed, the structure is simpler, and only one spherical element 20 is lifted at one time, so that non-contact transmission can be realized, the collision and damage to the spherical elements 20 are avoided, the equipment is simple and reliable, and the manufacturing cost is low.

In order to facilitate the rolling of the spherical element 20 from the spherical element accommodating chamber 301 into the outlet connection pipe 6, in an embodiment of the present invention, the axis of the inlet connection pipe 19 and the axis of the outlet connection pipe 6 are located in the same plane and located on both sides of the lifting housing 2, respectively, so that one end of the spherical element accommodating chamber 301 is communicated with the inlet connection pipe 19 and the other end is communicated with the outlet connection pipe 6.

The spherical element accommodation chamber 301 is a cylindrical chamber, and the height of one end near the inlet connection pipe 19 is higher than that of the other end, that is, the height of one end communicating with the inlet connection pipe 19 is higher than that of one end communicating with the outlet connection pipe 6.

When the elevator car 3 slides to the position of the inlet connection pipe 19, the ball element accommodating chamber 301 communicates with the inlet connection pipe 19, and the ball element 20 can automatically roll into the ball element accommodating chamber 301 under the action of gravity due to the inclined arrangement of the ball inlet connection pipe 19. Although the spherical element accommodation chamber 301 is arranged obliquely, since the axis of the inlet connection pipe 19 and the outlet connection pipe 6 are located at different positions of the elevating housing 2, the spherical element 20 is blocked by the side wall of the elevating housing 2 and does not roll out of the spherical element accommodation chamber 301.

Then, the spherical element 20 rolling into the spherical element accommodating cavity 301 is lifted upwards to the position of the outlet connecting pipe 6 by lifting the car 3, after the spherical element accommodating cavity 301 is communicated with the outlet connecting pipe 6, because the spherical element accommodating cavity 301 is obliquely arranged and the height of one end communicated with the outlet connecting pipe 6 is lower, under the action of gravity, the spherical element 20 rolls out of the spherical element accommodating cavity 301 and rolls in from the first end of the outlet connecting pipe 6, and finally rolls out of the outlet connecting pipe 6 under the action of gravity, and the lifting action of the spherical element 20 from the starting point to the end point is completed.

Further, the axis of the spherical element accommodation chamber 301 is parallel to both the axis of the inlet connection pipe 19 and the axis of the outlet connection pipe 6. That is, the inclination angles of the spherical element accommodating cavity 301, the inlet connecting pipe 19 and the outlet connecting pipe 6 are the same, so that the smoothness of the rolling of the spherical element 20 is further improved, and the jerking feeling of the rolling of the spherical element 20 caused by different inclination angles is avoided.

It should be noted that the spherical element 20 can roll along the spherical element accommodating cavity 301, the inlet connecting pipe 19 and the outlet connecting pipe 6, and the aperture of the spherical element accommodating cavity 301, the aperture of the inlet connecting pipe 19 and the aperture of the outlet connecting pipe 6 need to be larger than the spherical diameter of the spherical element 20, but if the size difference is large, the spherical element 20 is easy to generate jumping bump when rolling, and the aperture of the spherical element accommodating cavity 301, the aperture of the inlet connecting pipe 19 and the aperture of the outlet connecting pipe 6 should be designed to be slightly larger than the spherical diameter d of the spherical element 20.

In order to facilitate the rolling of the spherical element 20 into and out of the spherical element accommodating cavity 301, in the present embodiment, the diameter of the spherical element accommodating cavity 301 is D0, the inner diameter of the inlet connection pipe 19 is D1, and the inner diameter of the outlet connection pipe 6 is D2, then D0 ═ D1+ S ═ D2+ S, where S is greater than or equal to 3mm and less than or equal to 6mm, and the diameter to be rolled out of the spherical element accommodating cavity 301 is designed to be slightly larger than the hole diameters of the inlet connection pipe 19 and the outlet connection pipe 6.

In order to ensure that the lifting cage 3 does not deflect when moving up and down and to prevent the spherical element receiving chamber 301 from being misaligned with the inlet connection tube 19 and the outlet connection tube 6, in this embodiment, the lifting cage 3 is slidably fitted into the inner lifting chamber 201 by a guide mechanism. Further, the guide mechanism includes a guide groove 202 provided on one of the inner hoisting chamber 201 and the hoisting car 3, and a guide key provided on the other of the inner hoisting chamber 201 and the hoisting car 3, the guide key being in sliding engagement with the guide groove 202, the extending direction of the guide groove 202 being parallel to the extending direction of the inner hoisting chamber 201.

Specifically, the two guide grooves 202 are disposed on the inner wall of the inner lifting cavity 201, and are symmetrical along the axis center of the inner lifting cavity 201, and the positions of the inlet connecting pipe 19 and the outlet connecting pipe 6 are avoided by the guide grooves 202. It should be noted that the number of the guide grooves 202 is not limited to two, and other numbers may be designed.

The guide keys are two (a left guide key 31 and a right guide key 32, respectively) provided on the outer wall of the elevator car 3, and are centrosymmetric along the axis of the elevator car 3, avoiding the position of the opening of the spherical element accommodation chamber 301.

In an embodiment of the present invention, the linear driving device is a linear motor disposed on the top of the lifting housing 2, and a first end of a driving rod 4 of the linear motor is connected to the lifting car 3. Specifically, a dovetail groove is formed in the lifting car 3, an insertion guide rail matched with the dovetail groove is arranged on the driving rod 4, and the lifting car 3 and the driving rod 4 are fixedly connected through the insertion matching of the insertion guide rail and the dovetail groove.

The linear motor includes a stator housing 8, a linear motor stator 14, and a drive rod 4. Wherein, stator housing 8 sealing connection is in the top of promoting casing 2, and linear electric motor stator 14 sets up in stator housing 8, and actuating lever 4 is linear electric motor's active cell, wears to locate linear electric motor stator 14's center. The first end of stator casing 8 and promotion casing 2 sealing connection, the second end of stator casing 8 and the first end sealing connection of upstroke casing 9, the second end of upstroke casing 9 is the blind end, upstroke casing 9 has the actuating lever upper portion stroke chamber 901 that is used for providing the stroke space for the second end of actuating lever 4, prevents when the second end of actuating lever 4 moves up, collides the roof of upstroke casing 9. In this embodiment, the moving parts are sealed inside the lifting housing 2, the upper stroke housing 9 and the stator housing 8, so as to ensure that the spherical element lifting device can work in a helium operating environment with high temperature and high pressure of a high temperature reactor.

It should be noted that, if the upstroke housing 9 is not provided, the second end of the driving rod 4 may be exposed outside the stator housing 8, so long as the dynamic seal is made between the stator housing 8 and the driving rod 4.

In this embodiment, the upper stroke casing 9 is provided with a position sensor 10 for detecting the stroke position of the driving rod 4 to obtain the position of the lifting car 3, and the position where the lifting car 3 stops is controlled by matching with the controller, so that the lifting car 3 can be accurately butted with the inlet connecting pipe 19 and the outlet connecting pipe 6 each time.

The second end of the stator housing 8 is a first flange, and the first end of the upper casing 9 is an upper end cap 11 connected to the first flange by a fastener. The bottom of the lifting shell 2 is a second flange which is connected with the lower end cover 1 through a fastener 21 in a sealing manner, and the bottom of the lifting shell 2 can adopt a closed structure. The top of the lifting shell 2 is provided with a third flange plate, the first end of the stator shell 8 is provided with a fourth flange plate, and the third flange plate is hermetically connected with the fourth flange plate through a fastening piece. It should be noted that the above embodiment discloses only one specific fixing manner among the lifting housing 2, the stator housing 8 and the upper stroke housing 9, and it should be noted that other fixing manners may also be adopted as long as the fixing connection among the three can be realized. The connection of the flange plate, the end cover and the like is adopted, so that the sealing is more conveniently realized.

Furthermore, the second flange plate and the lower end cover 1, the third flange plate and the fourth flange plate, and the first flange plate and the upper end cover 11 are hermetically connected through metal sealing rings 16, so that the spherical element lifting device can work in a helium operating environment with high temperature and high pressure of a high-temperature reactor.

In order to ensure smooth movement of the drive rod 4, in this embodiment the second end of the stator housing 8 is provided with a lower linear bearing 15 for a sliding fit of the drive rod 4. The first end of the stator housing 8 has an opening for mounting the linear motor stator 14, and the linear motor stator 14 can be loaded into the stator housing 8 through the opening and then positioned by the support body 13 detachably disposed at the opening to prevent the linear motor stator 14 from moving within the stator housing 8. The drive rod 4 passes through a support body 13, the support body 13 being provided with an upper linear bearing 12 for sliding engagement with the drive rod 4.

The side surface of the stator shell 8 is provided with a side pipeline which is vertical to the axis of the stator shell 8, the end part of the side pipeline is hermetically provided with an electric penetration piece 7 which is used for penetrating through a power supply line through a flange, and a stator coil connecting wire of the linear motor stator 14 is connected with the power supply line in the side pipeline. The operating medium of the spherical element of the high-temperature reactor is helium, and radiated dust exists, so that the sealing of the operating environment is very important, and therefore, the connecting wire of the stator coil is connected with an external power supply by the electric penetration piece 7, and the sealing of the operating environment can be ensured.

In order to ensure that the ball-shaped element 20, which may be stuck in a position of the ball-shaped element accommodating cavity 301 or the outlet connection pipe 6 due to dropped element debris, can roll out the stuck ball-shaped element 20 through the outlet connection pipe 6, in an embodiment of the present invention, the ball-shaped element lifting device may further include an air blowing nozzle 17 disposed on the lifting housing 2 and communicated with the inner lifting cavity 201, wherein the air blowing nozzle 17 is used for blowing air to the outlet connection pipe 6 so as to make the ball-shaped element 20 flow out of the outlet connection pipe 6.

Further, the air blowing port connecting pipe 17 and the outlet connecting pipe 6 are coaxially arranged, and meanwhile, the air blowing port connecting pipe 17 and the spherical element accommodating cavity 301 are coaxially arranged, so that opposite pressure can be provided for the spherical element accommodating cavity 301 and the outlet connecting pipe 6, the clamped spherical element 20 can be guaranteed to be positively blown, and the spherical element 20 can be blown out of the clamped position.

Further, the ball element lifting device may further include a ball entry counter 18 and a ball exit counter 5. Wherein the ball counter 18 is disposed on the inlet connection tube 19 for detecting the number of the spherical elements 20 passing through the inlet connection tube 19, and can detect and record when the spherical elements 20 pass through the inlet connection tube 19.

The ball-out counter 5 is provided on the outlet connection pipe 6 for detecting the number of the spherical elements 20 passing through the outlet connection pipe 6, and can detect and record when there is a spherical element 20 passing through the outlet connection pipe 6. When the number of the spherical elements 20 detected by the ball-out counter 5 is less than the number of the spherical elements 20 detected by the ball-in counter 18, i.e. if only the record of the ball-in counter 18 exists, but there is no record of the ball-out counter 5, it can be determined that the spherical element 20 may be stuck in a certain portion of the spherical element receiving cavity 301 or the outlet connection pipe 6, and at this time, air can be blown into the outlet connection pipe 6 through the air blowing port connection pipe 17 to blow the stuck spherical element 20 out of the outlet connection pipe 6.

In summary, the operation principle of the spherical element lifting device disclosed by the embodiment of the invention is as follows:

1) the driving rod 4 pulls the lifting car 3 to accurately move to the position of the inlet connecting pipe 19, the external operation system controls the single spherical element 20 to flow into the spherical element accommodating cavity 301 of the lifting car 3 through the inlet connecting pipe 19, and the ball entering counter 18 records once;

2) the lifting cage 3 rises and moves to the position of the outlet connecting pipe 6, the spherical element 20 flows into the outlet connecting pipe 6 from the lower part of the spherical element accommodating cavity 301 of the lifting cage 3 and flows out of the spherical element lifting device along the outlet connecting pipe 6, and the ball outlet counter 5 records once;

3) if the ball-out counter 5 has no flow record, the ball element 20 may be stuck in the ball element receiving cavity 301 due to the falling ball element debris, and then the external blowing device is controlled to blow the ball element receiving cavity 301 through the blowing port connecting pipe 17, so that the ball element 20 flows out of the ball element lifting device.

The above steps are sequentially repeated to continuously lift the spherical element 20.

It should be noted that, in this specification, each embodiment is described in a progressive manner, and each embodiment focuses on differences from other embodiments, and portions that are the same as and similar to each other in each embodiment may be referred to.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements. An element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (20)

1. A spherical element lifting device, comprising:

a lifting housing (2) having an inner lifting cavity (201);

an inlet connecting pipe (19), the first end of which is fixed at the lower end of the lifting shell (2) and is communicated with the inner lifting cavity (201), wherein the inlet connecting pipe (19) is downwards inclined from the second end to the first end for feeding the spherical element (20);

an outlet connecting pipe (6), the first end of which is fixed on the upper end of the lifting shell (2) and is communicated with the inner lifting cavity (201), wherein the outlet connecting pipe (6) is downwards inclined from the first end to the second end and is used for outputting a spherical element (20);

the lifting car (3) is arranged in the inner lifting cavity (201) in a sliding mode and is provided with a spherical element accommodating cavity (301), when the lifting car (3) slides to the position of the inlet connecting pipe (19), the spherical element accommodating cavity (301) is communicated with the inlet connecting pipe (19), and when the lifting car (3) slides to the position of the outlet connecting pipe (6), the spherical element accommodating cavity (301) is communicated with the outlet connecting pipe (6);

the linear driving device is used for driving the lifting car (3) to slide along the inner lifting cavity (201).

2. A spherical element lifting device according to claim 1, characterized in that the axis of the inlet connection tube (19) and the axis of the outlet connection tube (6) are located in the same plane and on both sides of the lifting housing (2), respectively;

the spherical element accommodating cavity (301) is a cylindrical cavity, and the height of one end close to the inlet connecting pipe (19) is higher than that of the other end.

3. A spherical element lifting device according to claim 2, characterized in that the axis of the spherical element accommodation chamber (301) is parallel to the axis of the inlet connection tube (19);

the axis of the spherical element accommodating cavity (301) is parallel to the axis of the outlet connecting pipe (6).

4. The ball element lifting device according to claim 2, characterized in that the diameter of the ball element receiving chamber (301) is D0, the inner diameter of the inlet connection pipe (19) is D1, and the inner diameter of the outlet connection pipe (6) is D2, then D0-D1 + S-D2 + S, where 3mm ≦ S ≦ 6 mm.

5. Spherical element lifting device according to claim 1, characterized in that the lifting car (3) is in sliding fit with the inner lifting cavity (201) by means of a guiding mechanism.

6. A spherical element lifting device according to claim 5, characterized in that the guiding mechanism comprises a guiding groove (202) provided on one of the inner lifting chamber (201) and the lifting car (3), and a guiding key provided on the other of the inner lifting chamber (201) and the lifting car (3), which guiding key is in sliding engagement with the guiding groove (202), the guiding groove (202) extending in a direction parallel to the direction of extension of the inner lifting chamber (201).

7. A spherical element lifting device according to claim 6, characterized in that said guide grooves (202) are two and arranged on the inner wall of said inner lifting chamber (201) and are centrosymmetric along the axis of said inner lifting chamber (201), said guide grooves (202) avoiding the position of said inlet connection pipe (19) and said outlet connection pipe (6);

the direction key for set up in two on promoting car (3) outer wall, and follow the axis central symmetry who promotes car (3), the direction key avoids the position of spherical element holding chamber (301).

8. Spherical element lifting device according to claim 1, characterized in that the linear drive is a linear motor arranged on top of the lifting housing (2), the first end of the drive rod (4) of which is connected to the lifting car (3).

9. Spherical element lifting device according to claim 8, characterized in that the lifting car (3) is provided with a dovetail groove and the drive rod (4) is provided with a plug-in guide rail cooperating with the dovetail groove.

10. The spherical element lifting device according to claim 8, wherein said linear motor comprises:

the stator shell (8) is hermetically connected to the top of the lifting shell (2);

a linear motor stator (14) disposed in the stator housing (8)

The driving rod (4) is a rotor of the linear motor and penetrates through the center of the linear motor stator (14).

11. Spherical element lifting device according to claim 10, wherein the first end of the stator housing (8) is sealingly connected to the lifting housing (2), the second end of the stator housing (8) is sealingly connected to the first end of an upstroke housing (9), the second end of the upstroke housing (9) being closed, the upstroke housing (9) having a drive rod upper stroke chamber (901) for providing a stroke space for the second end of the drive rod (4).

12. Spherical element lifting device according to claim 11, characterized in that a position sensor (10) for detecting the stroke position of the driving rod (4) is arranged on the upper stroke housing (9) to obtain the position of the lifting car (3).

13. A spherical element lifting device according to claim 11, wherein the second end of the stator housing (8) is a first flange and the first end of the upstroke housing (9) is an upper end cap (11) connected to the first flange by a fastener.

14. A spherical element lifting device according to claim 13, characterized in that the bottom of the lifting housing (2) is a second flange to which the lower end cap (1) is sealingly attached by means of fasteners;

the top of the lifting shell (2) is provided with a third flange plate, the first end of the stator shell (8) is provided with a fourth flange plate, and the third flange plate is connected with the fourth flange plate in a sealing mode through a fastening piece.

15. A spherical element lifting device according to claim 14, wherein the second flange and the lower end cap (1), the third flange and the fourth flange, and the first flange and the upper end cap (11) are sealingly connected by means of metal sealing rings (16).

16. Spherical element lifting device according to claim 14, characterized in that the second end of the stator housing (8) is provided with a lower linear bearing (15) for a sliding fit of the driving rod (4);

the first end of stator casing (8) has the opening that is used for installing linear electric motor stator (14), in the opening part can be dismantled and be provided with supporter (13), supporter (13) are provided with be used for with actuating lever (4) sliding fit's upper portion linear bearing (12).

17. A spherical element lifting device according to claim 10, wherein the side of the stator housing (8) has a side pipe perpendicular to the axis of the stator housing (8), the end of the side pipe is flange-sealed with an electrical penetration (7) for passing through a power supply line, and the stator coil connection wire of the linear motor stator (14) is connected with the power supply line in the side pipe.

18. Spherical element lifting device according to any of claims 1 to 17, further comprising a blow-off connection (17) arranged on the lifting housing (2) and communicating with the inner lifting chamber (201), the blow-off connection (17) being adapted to blow air towards the outlet connection (6) in order to cause the spherical element (20) to flow out of the outlet connection (6).

19. Spherical element lifting device according to claim 18, characterized in that the blow nozzle (17) is arranged coaxially with the outlet connection tube (6).

20. The spherical element lifting device of claim 18, further comprising:

-a ball entry counter (18) for detecting the number of said spherical elements (20) passing through said inlet connection tube (19);

a ball outlet counter (5) for detecting the number of the spherical elements (20) passing through the outlet connection pipe (6), wherein the air blowing port connection pipe (17) blows air to the outlet connection pipe (6) when the spherical elements (20) detected by the ball outlet counter (5) are less than the number of the spherical elements (20) detected by the ball inlet counter (18).

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