阅读说明：本技术 中间热交换器的拆装装置 (Dismounting device for intermediate heat exchanger ) 是由 宋广懂 杨红义 余华金 周立军 彭康玮 刘萌萌 吴水金 申凤阳 武志广 朱丽娜 于 2021-08-11 设计创作，主要内容包括：本公开涉及一种中间热交换器的拆装装置包括：筒状主体,用于从上方罩设在中间热交换器的外侧,且在与中间热交换器支承筒对接时将中间热交换器封闭在筒状主体之间；起升部,设置在筒状主体的内侧顶部并具有可在筒状主体内上下移动的提取机构,以带动中间热交换器升降；气体置换部,设置在筒状主体上,用于将筒状主体内的气体排出或向筒状主体内通入气体；封闭部,设置在筒状主体的底部,能够从底部选择性地打开或封闭筒状本体。通过起升部带动中间热交换器的升降,以实现对中间热交换器的拆装,并通过筒状主体和封闭部使得中间热交换器具有一个封闭的拆装空间,由气体置换部置换拆装空间的气体,保证了中间热交换器在拆装装置内的稳定性。(The present disclosure relates to a dismounting device of an intermediate heat exchanger, comprising: a tubular body for covering the outside of the intermediate heat exchanger from above and enclosing the intermediate heat exchanger between the tubular bodies when abutting against the intermediate heat exchanger support tube; the lifting part is arranged at the top of the inner side of the cylindrical main body and is provided with an extraction mechanism which can move up and down in the cylindrical main body so as to drive the intermediate heat exchanger to lift; a gas replacement part arranged on the cylindrical main body and used for discharging gas in the cylindrical main body or introducing gas into the cylindrical main body; and a closing part provided at the bottom of the cylindrical body and capable of selectively opening or closing the cylindrical body from the bottom. The lifting part drives the middle heat exchanger to lift so as to realize the dismounting of the middle heat exchanger, the cylindrical main body and the sealing part enable the middle heat exchanger to have a sealed dismounting space, the gas in the dismounting space is replaced by the gas replacement part, and the stability of the middle heat exchanger in the dismounting device is ensured.)

1. An intermediate heat exchanger attaching and detaching device, comprising:

a tubular main body (1) which is provided outside an intermediate heat exchanger (7) from above and which closes the intermediate heat exchanger (7) between the tubular main bodies (1) when being abutted against the intermediate heat exchanger support tube;

the lifting part (2) is arranged at the top of the cylindrical main body (1) and is provided with an extraction mechanism (21) which can move up and down in the cylindrical main body (1) so as to drive the intermediate heat exchanger (7) to lift;

a gas replacement unit (3) provided in the cylindrical body (1) and configured to discharge gas from the cylindrical body (1) or introduce gas into the cylindrical body (1); and

and a closing section (4) provided at the bottom of the tubular main body (1) and capable of selectively opening or closing the tubular main body (1) from the bottom.

2. The dismounting device according to claim 1, characterized in that a radially telescopic placing platform (5) is further arranged in the cylindrical body (1) for placing the lifted intermediate heat exchanger (7).

3. A dismounting device according to claim 1, wherein said closing part (4) comprises a valve matching with the inner diameter of said tubular body (1), said valve being rotatably connected to the inner wall of said tubular body (1) by a rotating shaft, said closing part (4) further comprising a locking mechanism (43) for locking said valve when said valve is rotated to a closed position.

4. A device according to claim 3, characterised in that the locking means (43) comprise a pin extending radially from the outside through the inner wall of the tubular body (1) and into the valve.

5. A dismounting device according to claim 3, wherein said valve comprises a first valve (411) and a second valve (412) axially spaced apart, said first valve (411) and said second valve (412) being independently openable or closable.

6. The attaching and detaching device according to claim 1, wherein the rising portion (2) further includes:

a drive mechanism provided at the top of the cylindrical body (1);

a winding drum connected to an output end of the driving mechanism to be capable of rotating;

and the cable (22) is wound on the winding drum, one end of the cable (22) is connected to the winding drum, and the other end of the cable is connected with the extraction mechanism (21).

7. The dismounting device according to claim 6, characterized in that said extraction mechanism (21) comprises a silo (211) for housing the external part of said intermediate heat exchanger (7), the top of said silo (211) being provided with a connection head (212) for connecting said cable (22), the bottom of said silo (211) having a threaded hole (213) for connecting with said intermediate heat exchanger (7) by means of a threaded fastener;

the tail end of the mooring rope (22) is provided with a clamping jaw (23) capable of grabbing the connecting head (212).

8. A dismounting device according to claim 7, characterized in that said tubular body (1) has a guide rail (11) extending up and down arranged on the inner wall and a slide (12) slidably connected to said guide rail (11), said gripping jaws (23) being connected to said slide (12).

9. Dismounting device according to claim 1, characterized in that the tubular body (1) is constructed as a multi-segment structure with axial sequential splicing.

10. Dismounting device according to claim 9, characterized in that the top of the cylindrical body (1) is provided with a connection beam (13), which connection beam (13) has a hoisting structure to be hoisted by an external hoisting device.

Technical Field

The disclosure relates to the technical field of reactors, in particular to a dismounting device of an intermediate heat exchanger.

Background

The intermediate heat exchanger is arranged in the reactor main container, wherein the tube bundle area is soaked in a sodium pool with radioactivity in a primary circuit, and the mixed flow chamber is partially in a radioactive sodium environment to the matching surface of the support table. The weight of a single intermediate heat exchanger can reach nearly 100t, the height of the single intermediate heat exchanger exceeds 15m, the diameter of the single intermediate heat exchanger is 2-3m, when equipment is taken out, a reactor is in a shutdown state, but because the liquid state of coolant sodium is maintained, the temperature in the reactor is still as high as about 250 ℃, the temperature of the intermediate heat exchanger equipment is basically consistent with the temperature of the intermediate heat exchanger equipment, if the intermediate heat exchanger is damaged in operation or needs to be taken out from a reactor container when reaching a specified service life, and because the intermediate heat exchanger also has a considerable dose of radioactivity when the reactor is operated for a long time, the requirement for dismounting and mounting of the intermediate heat exchanger as key equipment needs to be considered, and therefore, a special device for dismounting and mounting the intermediate heat exchanger is urgently needed to be developed.

Disclosure of Invention

The purpose of this disclosure is to provide a dismounting device of an intermediate heat exchanger, this dismounting device guarantees the leakproofness when the intermediate heat exchanger is dismounted.

In order to achieve the above object, the present disclosure provides an intermediate heat exchanger attaching and detaching device, comprising:

a tubular body that covers the outside of the intermediate heat exchanger from above and that closes the intermediate heat exchanger between the tubular bodies when abutting the intermediate heat exchanger support tube;

the lifting part is arranged at the top of the cylindrical main body and is provided with an extraction mechanism which can move up and down in the cylindrical main body so as to drive the intermediate heat exchanger to lift;

a gas replacement unit provided in the cylindrical body and configured to discharge gas from the cylindrical body or introduce gas into the cylindrical body; and

and a closing part provided at a bottom of the cylindrical main body and capable of selectively opening or closing the cylindrical main body from the bottom.

Optionally, a radially retractable placing platform is further disposed in the cylindrical main body, and is used for placing the lifted intermediate heat exchanger.

Optionally, the sealing part includes a valve matched with the inner diameter of the cylindrical main body, the valve is rotatably connected to the inner wall of the cylindrical main body through a rotating shaft, and the sealing part further includes a locking mechanism for locking the valve when the valve is rotated to a sealing position.

Optionally, the locking mechanism comprises a pin extending radially from the outside through the inner wall of the cylindrical body and into the valve.

Optionally, the valve comprises a first valve and a second valve arranged axially spaced apart, the first valve and the second valve each opening or closing independently.

Optionally, the lifting part further comprises:

a drive mechanism provided at the top of the cylindrical body;

a winding drum connected to an output end of the driving mechanism to be capable of rotating;

and the cable is wound on the winding drum, one end of the cable is connected to the winding drum, and the other end of the cable is connected to the extraction mechanism.

Optionally, the extraction mechanism comprises a silo for covering the outside of the intermediate heat exchanger, the top of the silo is provided with a connector for connecting the cable, and the bottom of the silo is provided with a threaded hole for connecting the intermediate heat exchanger through a threaded fastener;

the end of the mooring rope is provided with a clamping jaw capable of grabbing the connector.

Optionally, the cylindrical body has a guide rail extending up and down provided on an inner wall and a slider slidably connected to the guide rail, the jaw being connected to the slider.

Optionally, the cylindrical body is configured as a multi-section structure that is axially spliced in sequence.

Optionally, a connecting beam is arranged at the top of the cylindrical main body, and the connecting beam has a hoisting structure so as to be hoisted by an external hoisting device.

Through above-mentioned technical scheme, this middle heat exchanger's dismouting device that openly provides locates the middle heat exchanger outside through the tube-shape main part cover, lifts or puts down middle heat exchanger by the extraction mechanism of lifting portion, realizes middle heat exchanger's dismouting. And the gas in the dismounting device is replaced by the gas replacement part before the intermediate heat exchanger is lifted up, so that the dismounting device is ensured to provide a stable internal space for the intermediate heat exchanger, the bottom of the whole cylindrical main body can be opened when the sealing part is opened, and the sealing property in the cylindrical main body can be maintained after the dismounting device lifts up the intermediate heat exchanger by closing the sealing part.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic structural view of a dismounting device provided in an exemplary embodiment of the present disclosure;

FIG. 2 is a partial cross-sectional structural view of a disassembled device provided in an exemplary embodiment of the present disclosure;

FIG. 3 is another partial cross-sectional structural view of a disassembled device provided in an exemplary embodiment of the present disclosure;

FIG. 4 is a schematic view of a partial structure of a dismounting device provided in an exemplary embodiment of the present disclosure;

fig. 5 is a front view of a hanger provided in an exemplary embodiment of the present disclosure;

fig. 6 is a top view of a hanger provided in an exemplary embodiment of the present disclosure.

Description of the reference numerals

1-a cylindrical body; 11-a guide rail; 12-a slide block; 13-connecting the beams; 2-a lifting part; 21-an extraction mechanism; 211-a silo; 212-a connector; 213-a threaded hole; 214-a stiffening beam; 215-avoidance hole; 22-a cable; 23-a clamping jaw; 3-a gas replacement section; 31-gas line valves; 4-a closure; 411 — first valve; 412-a second valve; 421-a first rotating shaft; 422-a second rotating shaft; 43-a locking mechanism; 5-placing a platform; 6-maintenance of the platform; 61-climbing ladder; 7-intermediate heat exchanger.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the terms of orientation such as "upper", "lower", "top" and "bottom" are defined according to the normal use of the detachable device provided in the present disclosure, and refer to the drawing direction shown in fig. 1. "inner" and "outer" refer to the inner and outer of the respective component profiles. Terms such as "first," "second," and the like, used in this disclosure are intended to distinguish one element from another, and are not sequential or significant. Further, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements.

Referring to fig. 1, the present disclosure provides a device for attaching and detaching an intermediate heat exchanger 7, which includes a tubular main body 1, a lifting portion 2, a gas replacement portion 3, and a sealing portion 4. The tubular body 1 can be used to cover the outside of the intermediate heat exchanger 7 from above to completely cover the intermediate heat exchanger 7 inside the tubular body 1, and when the intermediate heat exchanger is butted against the intermediate heat exchanger support tube, the intermediate heat exchanger 7 can be enclosed between the tubular bodies 1, so that the intermediate heat exchanger support tube can be used as a support surface and a sealing surface to isolate the internal space formed by the dismounting device from the outside atmosphere. The lifting part 2 can be arranged at the top of the tubular main body 1 and is provided with an extraction mechanism 21 which can move up and down in the tubular main body 1 so as to drive the intermediate heat exchanger 7 to lift, thus facilitating the lifting and falling of the intermediate heat exchanger 7 from the reactor vessel and avoiding the situation that the intermediate heat exchanger 7 is difficult to operate due to overhigh temperature or radioactivity.

The gas replacement part 3 may be provided in the tubular body 1 and may be used to discharge gas from the tubular body 1 or introduce gas into the tubular body 1. According to some embodiments provided by the present disclosure, the intermediate heat exchanger 7 may be applied to a pool-type sodium-cooled fast reactor, and radioactive sodium may be adhered to the surface when the intermediate heat exchanger 7 is extracted from the reactor vessel. Therefore, before the intermediate heat exchanger 7 is lifted from the reactor, the air in the dismounting device can be discharged through the gas pipeline valve 31, and then argon is introduced into the dismounting device through the other gas pipeline valve 31, so that the reaction between the sodium on the surface of the intermediate heat exchanger 7 and the air is avoided, and the stability in the dismounting device is ensured.

The closing part 4 may be provided at the bottom of the cylindrical body 1, and the cylindrical body 1 can be selectively opened or closed from the bottom. When the intermediate heat exchanger 7 is lifted from the reactor by the lifting part 2 of the dismounting device and can move along with the dismounting device, the sealing part 4 is closed so that the intermediate heat exchanger 7 keeps a sealing state in the moving process. When the intermediate heat exchanger 7 moves to the position of the preheating trap or the cleaning trap along with the dismounting device, the intermediate heat exchanger 7 can be placed downwards through the lifting part 2, and then the sealing part 4 is opened so as to be placed on the preheating trap support to be in butt joint with the preheating trap for preheating or placed on the cleaning trap support to be in butt joint with the cleaning trap for cleaning.

According to the technical scheme, the dismounting device for the intermediate heat exchanger 7 provided by the disclosure is arranged outside the intermediate heat exchanger 7 in a covering manner through the tubular main body 1, and the intermediate heat exchanger 7 is lifted up or put down by the extraction mechanism 21 of the lifting part 2, so that the dismounting of the intermediate heat exchanger 7 is completed. And the gas inside the dismounting device is replaced by the gas replacement part 3 before the intermediate heat exchanger 7 is lifted up, so that the dismounting device can provide a stable internal space for the intermediate heat exchanger 7, and the dismounting device can meet the working requirement of the intermediate heat exchanger 7 by opening and closing the sealing part 4.

Referring to fig. 1, a radially retractable platform 5 may be further disposed in the tubular main body 1 for placing the intermediate heat exchanger 7 lifted by the lifting portion 2. The placement platform 5 may include an electric control mechanism provided inside the tubular body 1 and support bodies arranged along the circumferential direction of the tubular body 1. After the intermediate heat exchanger 7 is lifted to the final height, the support body is controlled by the electric control mechanism to extend along the radial direction, the lifting height is slightly reduced, for example, 20 mm-30 mm, so that the intermediate heat exchanger 7 is placed on the support body, the lifting part 2 is prevented from being stressed all the time, and the intermediate heat exchanger 7 is ensured to keep a stable posture in the transportation process. When the intermediate heat exchanger 7 needs to be put down, the electric control mechanism controls the supporting body to retract so as to avoid the intermediate heat exchanger 7, and the placing platform 5 is ensured not to interfere with the descending of the intermediate heat exchanger 7. Meanwhile, a guard rail with a certain height can be arranged on the outer contour of the placing platform 5 to further improve the stability of the intermediate heat exchanger 7 in the dismounting device.

Referring to fig. 2 and 3, the closing part 4 may include a valve that matches the inner diameter of the cylindrical body 1, and the airtightness of the closing part 4 can be effectively ensured when the valve is closed. The valve can be rotationally connected to the inner wall of the tubular main body 1 through the rotating shaft, according to some embodiments provided by the disclosure, the sealing part 4 can further comprise a driving mechanism, and the driving mechanism drives the rotating shaft to rotate so as to drive the valve to be opened and closed, so that the valve cannot be automatically opened or closed, and the using effect of the valve is ensured. The closing part 4 can further comprise a locking mechanism 43, and when the valve is closed, the locking mechanism 43 can improve the closing force of the valve, so that the sealing performance and the stability of the closing part 4 are effectively improved.

Further, referring to fig. 2 and 3, the locking mechanism 43 may include a pin that radially penetrates the inner wall of the cylindrical body 1 from the outside and protrudes into the valve. The pin shaft may be arranged on the inner wall of the tubular body 1 at the same level as when the valve is closed, to ensure the locking effect of the locking mechanism 43 on the valve. According to some embodiments that this disclosure provided, the round pin axle is at cylindrical main body 1 inner wall along circumference interval arrangement a plurality ofly to further improve the locking effect to the valve, keep the required closing force of valve seal, reach sealed requirement. Wherein the locking mechanism 43 may be extended or retracted by a motor, such as a servo motor, or by operator control.

Referring to fig. 2 and 3, the valve may include a first valve 411 and a second valve 412 axially spaced to effectively improve the sealing effect of the closure. The first valve 411 and the second valve 412 can be opened or closed independently, so that the first valve 411 and the second valve 412 are not interfered with each other when being opened or closed, and the use requirement of the dismounting device is met. Specifically, the first valve 411 may be rotatably connected to the cylindrical body 1 by a first rotating shaft 421, and the second valve 412 may be rotatably connected to the cylindrical body 1 by a second rotating shaft 422. When the first valve 411 and the second valve 412 are both in a closed state, the closing portion 4 can drive the first valve 411 to rotate downwards through the first rotating shaft 421 so as to open the first valve 411, and can drive the second valve 412 to rotate upwards through the second rotating shaft 422 so as to open the second valve 412, so that the first valve 411 and the second valve 412 occupy the same height space when in an open state, and the overall height of the dismounting device is reduced. The first valve 411 and the second valve 412 are matched with each other, so that the reactor vessel and the dismounting device are effectively isolated from the outside.

Referring to fig. 4, the lift portion 2 may further include: a drive mechanism, a drum, and a cable 22. Actuating mechanism can set up in the top outside of tube-shape main part 1, avoids contacting with the high temperature humid gas of dismouting in-process to improve driving motor's life, can continuously provide stable power for the dismouting device, actuating mechanism simultaneously. The driving mechanism can comprise components such as a hoisting motor, a hoisting brake, a hoisting speed reducer and the like, and the specific driving mechanism is not limited in the disclosure as long as the working requirement of the dismounting device is met. The reel can be connected in order to be able to the rotation at actuating mechanism's output, hawser 22 is around establishing on the reel, through guaranteeing reel pivoted stability, in order to ensure that hawser 22 is steady when hoisting or releasing intermediate heat exchanger 7, the one end of hawser 22 is connected in the reel, and set up in the outside of tube-shaped main part 1, the other end stretches into the inboard of tube-shaped main part 1 and connects and draws mechanism 21, the leakproofness at tube-shaped main part 1 top has been guaranteed, through hawser 22 around locating the reel setting, make hawser 22 have enough length in order to satisfy and draw the mechanism 21 to the high demand that intermediate heat exchanger 7 was mentioned and was transferred, and be convenient for accomodating of hawser 22 in order to reduce space occupancy, hawser 22 can be the steel cable, in order to guarantee that hawser 22 has enough rigidity and guarantee to rise the stability of portion 2.

Further, referring to fig. 4, 5 and 6, the withdrawing mechanism 21 may include a silo 211 for covering the outside of the intermediate heat exchanger 7 to prevent the outer surface of the intermediate heat exchanger 7 from being cut or deformed by an impact during the process of lifting up or lowering down the inside of the disassembling and assembling apparatus, and at the same time, a plurality of reinforcing beams 214 extending downward from the top and short reinforcing beams having a length direction perpendicular to the length direction of the reinforcing beams 214 are formed along the outer wall of the silo 211 to improve the rigidity and strength of the silo 211, further ensuring the stability of the intermediate heat exchanger 7 placed inside the silo 211.

The top of the silo 211 may be provided with a connector 212 for connecting the cable 22, ensuring the structural integrity of the silo 211 while ensuring the reliability of the connection between the silo 211 and the cable 22. The bottom of the silo 211 can be provided with a threaded hole 213 which is connected with the intermediate heat exchanger 7 through a threaded fastener, the threaded fastener can sequentially pass through the mounting hole on the intermediate heat exchanger 7 and the threaded hole 213 on the silo 211, so that the intermediate heat exchanger 7 is detachably connected with the silo 211, a plurality of threaded holes 23 can be arranged at intervals along the outer contour of the bottom of the silo 211, a plurality of mounting holes on the intermediate heat exchanger 7 are correspondingly arranged, the silo 211 is connected with the intermediate heat exchanger 7 through a plurality of fasteners, the connection strength between the silo 211 and the intermediate heat exchanger 7 is effectively improved, and the reliability of lifting and lowering the intermediate heat exchanger 7 by the extraction mechanism 21 is ensured. The end of the cable 22 may be provided with a gripper 23 capable of gripping the connector 212 to further improve the strength of the connection between the cable 22 and the silo 211. An avoiding hole 215 can be formed on the silo 211 corresponding to the connecting pipe of the intermediate heat exchanger 7, so that the silo 211 can adapt to the outer contour structure of the intermediate heat exchanger 7.

Further, referring to fig. 1 and 4, the tubular main body 1 has a guide rail 11 extending up and down and a slider 12 slidably connected to the guide rail 11, and the clamping jaw 23 is connected to the slider 12 so that the clamping jaw 23 can follow the movement of the slider 12 to drive the whole lifting mechanism 2 to slide along the extending direction of the guide rail 12, so that the intermediate heat exchanger 7 is lifted or lowered along a specified movement track, thereby further ensuring the stability of the movement of the intermediate heat exchanger 7 in the dismounting device.

Referring to fig. 1, the cylindrical body 1 may be constructed in a multi-sectional structure in which the cylindrical body is axially sequentially spliced. Ensure that tube-shape body 1 can have different heights according to the user demand of difference, the equipment and the depositing of dismouting device of being convenient for simultaneously.

Further, a connection beam 13 is provided at the top of the cylindrical body 1, and the connection beam 13 has a hoisting structure so as to be hoisted by an external hoisting device. Make dismouting device be connected with the line of reactor hall through hoisting structure and hang, ensure the stability of dismouting device when dismouting intermediate heat exchanger 7 and drive intermediate heat exchanger 7 and remove.

Referring to fig. 1, the dismounting device may further include a maintenance platform 7 disposed on the upper portion of the placement platform 5, and a ladder stand 61, such as a vertical ladder stand or an inclined ladder stand, may be disposed on the maintenance platform 7, so as to provide a working environment for the staff to overhaul and maintain the dismounting device.

According to a specific embodiment of the present disclosure, the specific working process of the dismounting device is as follows: take the example of extracting the intermediate heat exchanger 7 from the sodium-cooled fast reactor to a purge trap. The spliced tubular body 1 is covered on the outer side of the intermediate heat exchanger 7 placed on the reactor support cylinder, and the driving mechanism of the lifting part 2 drives the extraction mechanism 21 to fall down so as to cover the silo 211 of the extraction mechanism 21 on the intermediate heat exchanger 7. Before the intermediate heat exchanger 7 is lifted, the air inside the dismounting device is exhausted and argon is introduced through the gas replacement part 3, then the reel is driven by the driving mechanism of the lifting part 2 to withdraw the cable 22, so that the intermediate heat exchanger 7 is lifted by the extracting mechanism 21 and moves upwards along the guide rail, then the valve of the closing part 4 is closed, when the intermediate heat exchanger 7 is lifted to the placing platform 5, the supporting body of the placing platform 5 extends out, and the intermediate heat exchanger 7 is stably placed on the placing platform 5. The dismouting device drives middle heat exchange 7 and hangs and remove to washing trap department along reactor hall line, and place the support retraction of platform 5 is in order to dodge middle heat exchanger 7, and the actuating mechanism drive reel release hawser 22 of portion 2 that rises transfers middle heat exchanger 7 through drawing mechanism 21, and when waiting to transfer to sealing 4, the valve is opened, draws mechanism 21 and transfers middle heat exchanger 7 to can be through washing trap support and washing trap butt joint department to wash.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure. It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.