阅读说明：本技术 一种用于控制换热管膨胀间隙的限位装置 (Limiting device for controlling expansion gap of heat exchange tube ) 是由 付冰洋 王胜 于 2021-02-02 设计创作，主要内容包括：本发明涉及一种用于控制换热管膨胀间隙的限位装置,包括：壳体、若干个换热管管束及若干个支撑板,所述支撑板包括顶部支撑板、底部支撑板及位于顶部支撑板与底部支撑板之间的若干个中间支撑板,所述壳体内壁在顶部支撑板的下方设有至少三个限位块,所述壳体内壁在底部支撑板的下方设有至少三个支座,所述支座包括：与壳体内壁相焊接的垫板、与垫板相焊接的第一管件、套设于第一管件上的第二管件、焊接于第二管件上方的定位管座及设置于定位管座上方的定位管,所述第一管件与第二管件之间通过连接件连接,所述定位管座与定位管两者中,其中一个设有外螺纹,另一个设有与外螺纹相配合的内螺纹,从而可精确的将膨胀间隙控制在设计范围内。(The invention relates to a limiting device for controlling an expansion gap of a heat exchange tube, which comprises: casing, a plurality of heat exchange tube bank and a plurality of backup pad, the backup pad includes top support plate, bottom support plate and is located a plurality of intermediate support plate between top support plate and the bottom support plate, shells inner wall is equipped with at least three stopper in top support plate's below, shells inner wall is equipped with at least three support in bottom support plate's below, the support includes: with casing inner wall welded backing plate, with the first pipe fitting of backing plate looks welded, the second pipe fitting of locating on the first pipe fitting of cover, weld in the location tube socket of second pipe fitting top and set up the registration arm above the location tube socket, be connected through the connecting piece between first pipe fitting and the second pipe fitting, location tube socket and registration arm in both, one of them is equipped with the external screw thread, and another is equipped with the internal thread with external screw thread matched with to can be accurate with expansion clearance control in design range.)

1. A spacing device for controlling the expansion gap of a heat exchange tube, comprising: the heat exchange tube bundle support device comprises a shell, a plurality of heat exchange tube bundles and a plurality of support plates, wherein the heat exchange tube bundles are supported on the support plates, the support plates comprise top support plates, bottom support plates and a plurality of middle support plates between the top support plates and the bottom support plates, and the heat exchange tube bundle support device is characterized in that: the casing inner wall is equipped with at least three stopper in the below of top support plate, casing inner wall is equipped with at least three support in the below of bottom support plate, the support includes: with casing inner wall welded backing plate, with the first pipe fitting of backing plate looks welded, the second pipe fitting of cover on locating first pipe fitting, weld in the location tube socket of second pipe fitting top and set up the registration arm above the location tube socket, be connected through the connecting piece between first pipe fitting and the second pipe fitting, in location tube socket and the registration arm both, one of them is equipped with the external screw thread, and another is equipped with the internal thread with external screw thread matched with.

2. A spacing device for controlling the expansion gap of a heat exchange tube as recited in claim 1 wherein: the top supporting plate, the bottom supporting plate and the plurality of middle supporting plates are arranged in parallel and are perpendicular to the heat exchange tube bundle.

3. A spacing device for controlling the expansion gap of a heat exchange tube as recited in claim 1 wherein: and openings for the limiting blocks to penetrate are formed in the bottom supporting plate and the middle supporting plate.

4. A spacing device for controlling the expansion gap of a heat exchange tube as recited in claim 1 wherein: the positioning pipe is sleeved on the outer side of the positioning pipe seat, the external thread is arranged on the positioning pipe seat, and the internal thread is arranged on the positioning pipe.

5. A spacing device for controlling the expansion gap of a heat exchange tube as recited in claim 1 wherein: the positioning tube is arranged on the inner side of the positioning tube seat, the external thread is arranged on the positioning tube, and the internal thread is arranged on the positioning tube seat.

6. A spacing device for controlling the expansion gap of a heat exchange tube as recited in claim 1 wherein: a plurality of stopper is evenly arranging on the circumferencial direction of casing, and the top of a plurality of stopper is located same height.

7. A spacing device for controlling the expansion gap of a heat exchange tube as recited in claim 1 wherein: the connecting piece is a pin or a bolt and a nut.

8. A spacing device for controlling the expansion gap of a heat exchange tube as recited in claim 1 wherein: and the positioning pipe is provided with an operation hole.

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of chemical machinery, in particular to a limiting device for controlling an expansion gap of a heat exchange tube.

[ background of the invention ]

The reaction vessel is a vessel for completing physical reaction and chemical reaction of a medium, and is widely used as a pressure-bearing device in industrial production, particularly in the industries of chemical engineering, medicine, chemical fertilizer, refining and the like due to process requirements.

The reaction vessel comprises: the shell and set up the heat exchange tube bank in the shell, the top welding of heat exchange tube bank is on a main pipe, be responsible for with set up the exit looks welding on the shell, reaction vessel during operation, heat exchange tube bank is heated and can produce the thermal expansion, and this thermal expansion clearance must be controlled in the design range so, if the thermal expansion clearance is too big easily with the heat exchange tube bank with be responsible for the welding seam between the seam stretch-break.

Therefore, it is necessary to provide a position limiter for controlling the expansion gap of the heat exchange pipe, which solves the above technical problems.

[ summary of the invention ]

In order to solve the problems, the invention aims to provide a limiting device for controlling the expansion gap of a heat exchange tube, which has a simple structure and is convenient to install.

In order to achieve the purpose, the invention adopts the technical scheme that: a spacing device for controlling the expansion gap of a heat exchange tube, comprising: the utility model discloses a heat exchanger tube bundle, including casing, a plurality of heat exchange tube bundle and a plurality of backup pad set up in the casing, heat exchange tube bundle supports in the backup pad, the backup pad includes top support board, bottom support board and is located a plurality of intermediate support board between top support board and the bottom support board, shells inner wall is equipped with at least three stopper in the below of top support board, shells inner wall is equipped with at least three support in the below of bottom support board, the support includes: with casing inner wall welded backing plate, with the first pipe fitting of backing plate looks welded, the second pipe fitting of cover on locating first pipe fitting, weld in the location tube socket of second pipe fitting top and set up the registration arm above the location tube socket, be connected through the connecting piece between first pipe fitting and the second pipe fitting, in location tube socket and the registration arm both, one of them is equipped with the external screw thread, and another is equipped with the internal thread with external screw thread matched with.

Preferably, the limiting device for controlling the expansion gap of the heat exchange tube in the invention is further configured as follows: the top supporting plate, the bottom supporting plate and the plurality of middle supporting plates are arranged in parallel and are perpendicular to the heat exchange tube bundle.

Preferably, the limiting device for controlling the expansion gap of the heat exchange tube in the invention is further configured as follows: and openings for the limiting blocks to penetrate are formed in the bottom supporting plate and the middle supporting plate.

Preferably, the limiting device for controlling the expansion gap of the heat exchange tube in the invention is further configured as follows: the positioning pipe is sleeved on the outer side of the positioning pipe seat, the external thread is arranged on the positioning pipe seat, and the internal thread is arranged on the positioning pipe.

Preferably, the limiting device for controlling the expansion gap of the heat exchange tube in the invention is further configured as follows: the positioning tube is arranged on the inner side of the positioning tube seat, the external thread is arranged on the positioning tube, and the internal thread is arranged on the positioning tube seat.

Preferably, the limiting device for controlling the expansion gap of the heat exchange tube in the invention is further configured as follows: a plurality of stopper is evenly arranging on the circumferencial direction of casing, and the top of a plurality of stopper is located same height.

Preferably, the limiting device for controlling the expansion gap of the heat exchange tube in the invention is further configured as follows: the connecting piece is a pin or a bolt and a nut.

Preferably, the limiting device for controlling the expansion gap of the heat exchange tube in the invention is further configured as follows: and the positioning pipe is provided with an operation hole.

Compared with the prior art, the invention has the following beneficial effects: the limiting device is simple in structure and convenient to install, and can accurately control the expansion gap within a design range, so that the phenomenon that the expansion gap between the heat exchange tube bundle and the main tube is too large to cause tension fracture of a welding line between the heat exchange tube bundle and the main tube is avoided.

[ description of the drawings ]

Fig. 1 is a schematic structural view of the limiting device of the present invention.

Fig. 2 is a schematic structural view of the bracket and the housing of the present invention after being mounted.

In fig. 1 and 2: 1. the heat exchange tube comprises a shell, 10, limiting blocks, 11, a support, 110, a base plate, 111, a first tube, 112, a second tube, 113, a positioning tube seat, 1130, external threads, 114, a positioning tube, 1140, internal threads, 1141, an operation hole, 115, a bolt and a nut, 2, a heat exchange tube bundle, 3, a support plate, 30, a top support plate, 31, a bottom support plate, 32 and a middle support plate.

[ detailed description ] embodiments

The following describes a limiting device for controlling the expansion gap of a heat exchange tube according to the present invention in further detail through specific embodiments.

Referring to fig. 1 and 2, a limiting device for controlling an expansion gap of a heat exchange tube includes: the shell 1, set up a plurality of heat exchange tube bundle 2 and a plurality of backup pad 3 in shell 1, heat exchange tube bundle 2 supports on backup pad 3, backup pad 3 includes top support plate 30, bottom support plate 31 and is located a plurality of intermediate support plate 32 between top support plate 30 and the bottom support plate 31, top support plate 30, bottom support plate 31 and a plurality of intermediate support plate 32 all are parallel arrangement and are mutually perpendicular with heat exchange tube bundle 2.

The inner wall of the shell 1 is provided with eight limit blocks 10 below the top support plate 30, and the eight limit blocks 10 are uniformly distributed in the circumferential direction of the shell 1 and the tops of the eight limit blocks 10 are all located at the same height. Openings (not shown) for the stoppers 10 to pass through are formed in the bottom support plate 31 and the middle support plate 32, and the openings are formed at the outer edges of the bottom support plate 31 and the middle support plate 32. Eight supports 11 are arranged on the inner wall of the shell 1 below the bottom support plate 31, and the number of the supports 11 can be changed according to the specific diameter of the shell 1. The support 11 includes: the pipe fitting comprises a base plate 110 welded with the inner wall of the shell 1, a first pipe fitting 111 welded with the base plate 110, a second pipe fitting 112 sleeved on the first pipe fitting 111, a positioning pipe seat 113 welded above the second pipe fitting 112 and a positioning pipe 114 arranged above the positioning pipe seat 113, wherein the first pipe fitting 111 and the second pipe fitting 112 are connected through a bolt and a nut 115, the positioning pipe 114 is sleeved outside the positioning pipe seat 113, an external thread 1130 is arranged on the positioning pipe seat 113, and an internal thread 1140 matched with the external thread 1130 is arranged on the positioning pipe 114. The positioning tube 114 is provided with a plurality of operation holes 1141. Of course, in other embodiments, the first pipe 111 and the second pipe 112 may be connected by a pin, the positioning pipe 114 may be disposed inside the positioning pipe seat 113, the external thread may be disposed on the positioning pipe 114, and the internal thread may be disposed on the positioning pipe seat 113, and the present invention may also be implemented.

The working principle of the limiting device is as follows: the heat exchange tube bundle 2 and the support plate 3 are assembled outside the shell 1 to form an integral piece, then the integral piece is arranged in the shell 1 from top to bottom by a hoisting device, because the middle support plate 32 and the bottom support plate 31 are provided with openings for the limiting block 10 to pass through, the bottom support plate 31 and the middle support plate 32 pass through the limiting block 10 and continue to go down until the top support plate 30 abuts against the limiting block 10, then the distance between the top support plate 30 and the limiting block 10 is adjusted according to the design value of the expansion gap of the heat exchange tubes of the device, a plurality of round steel is firstly put into the operating holes 1141 of the positioning tubes 114, then the positioning tubes 114 are rotated to enable the positioning tubes 114 to move upwards, so as to jack up the bottom support plate 31, and because the bottom support plate 31, the middle support plate 32, the top support plate 30 and the heat exchange tube bundle 2 form an integral, therefore, the positioning tube 114 lifts the bottom support plate 31 upwards, the top support plate 30 also moves upwards, so that a space is formed between the top support plate 30 and the limiting block 10, the space is the designed value of the expansion gap of the heat exchange tube of the equipment, after the positioning is completed, the heat exchange tube bundle 2 is welded with an inlet and an outlet (not shown) arranged on the shell 1 through a main tube (not shown) at the top, so that the heat exchange tube bundle 2, the bottom support plate 31, the middle support plate 32 and the top support plate 30 are all positioned, after the positioning is completed, the positioning tube 114 is rotated in the opposite direction, so that the positioning tube 114 moves downwards, so that a space is formed between the bottom support plate 31 and the positioning tube 114, the space is also the designed value of the expansion gap of the heat exchange tube bundle 2 of the equipment, when the heat exchange tube bundle 2 is heated and thermally expands, no matter whether the expansion gap between the top support plate 30, the expansion gap is accurately controlled.

In conclusion, the limiting device disclosed by the invention is simple in structure and convenient to install, and can accurately control the expansion gap within a design range, so that the phenomenon that the expansion gap between the heat exchange tube bundle and the main tube is too large to cause tension fracture of the welding line between the heat exchange tube bundle and the main tube is avoided.

The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.