CN212227846U

CN212227846U - Jacket device

Info

Publication number: CN212227846U
Application number: CN202020825264.1U
Authority: CN
Inventors: 薛小龙; 汤晓英; 杜彦楠; 王洁璐; 彭建涛; 茅陆荣
Original assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute; Morimatsu Jiangsu Heavy Industry Co Ltd
Current assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute; Morimatsu Jiangsu Heavy Industry Co Ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-12-25
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses a jacket device, which belongs to the field of reaction kettles and comprises an inner cylinder, an outer cylinder and a first separating piece, wherein the first separating piece, the inner cylinder and the outer cylinder jointly enclose to form a first cavity which is an annular cavity; the baffle plates are arranged in a plurality of numbers, one side of each baffle plate is connected with the inner cylinder or the outer cylinder, the baffle plates are arranged in the first cavity at intervals along the circumferential direction of the jacket device, and the baffle plates and the first cavity jointly enclose a snake-shaped channel for medium flowing. The first separating element, the inner cylinder and the outer cylinder are arranged in a surrounding mode to form a first cavity, the first cavity is an annular cavity, the strength of the jacket device is improved by the first separating element, the designed wall thickness of the inner cylinder is reduced, and the heat transfer efficiency of the medium is improved. One side of the baffle plate is connected with the inner cylinder or the outer cylinder, and the plurality of baffle plates and the first cavity are enclosed into a serpentine channel for medium flowing, the serpentine channel reduces the temperature difference of the medium at the upper part and the lower part of the jacket device, and improves the heat transfer efficiency of the medium.

Description

Jacket device

Technical Field

The utility model relates to a reation kettle field especially relates to a press from both sides cover device for polycrystalline silicon reduction furnace equipment.

Background

The jacket is an outer jacket added outside the wall of the container, and is usually sleeved outside a pressure container such as a reaction kettle, and heating media such as steam, hot water or hot oil can be introduced into the jacket to heat materials in the container, and cooling media such as cooling water or other cooling fluids can be introduced into the jacket to cool the materials in the container.

In order to guide the flow of the heating medium or the cooling medium, a guide plate is additionally arranged in the jacket. As shown in FIG. 1 and FIG. 2, a heat transfer cavity for medium circulation is arranged in a jacket device of the polysilicon reduction furnace equipment, and the heat transfer cavity comprises an annular cavity and an arc-shaped cavity communicated with the annular cavity. And the guide plate 6 is arranged in an annular cavity and an arc-shaped cavity in the jacket in a spiral manner, the heat transfer medium enters from an inlet 7 at the bottom of the jacket device and rises in a spiral manner to flow out from an outlet 8 at the top of the jacket device, and the scheme ensures that the medium flows smoothly and the pressure drop is small. However, as the size of the jacket is increased, the temperature difference between the upper and lower portions of the jacket is increased, and the heat transfer effect is not uniform, so that the heat transfer efficiency of the jacket device is lowered. Meanwhile, when the pressure or the temperature of the medium is higher, the design thickness of the inner cylinder of the jacket is correspondingly increased, namely the wall thickness of the inner cylinder is increased, and the heat transfer efficiency of the medium in the jacket is further reduced.

Therefore, a new jacket device is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a jacket device changes the flow direction of pressing from both sides interior medium of cover and reduces the wall thickness of the inner tube that presss from both sides the cover simultaneously to improve jacket device's heat transfer efficiency.

To achieve the purpose, the technical proposal adopted by the utility model is that:

a jacketed device, comprising:

the first separating element, the inner cylinder and the outer cylinder jointly enclose to form a first cavity, and the first cavity is an annular cavity;

and a plurality of baffle plates are arranged, one side of each baffle plate is connected with the inner cylinder or the outer cylinder, the baffle plates are arranged in the first cavity at intervals along the circumferential direction of the jacket device, and the baffle plates and the first cavity jointly enclose a snake-shaped channel for medium flowing.

Furthermore, the baffle plates are arranged in the first cavity at equal intervals, one of every two adjacent baffle plates is connected with the top wall of the first cavity, a gap flow channel is formed between the adjacent baffle plates and the bottom wall, the other baffle plate is connected with the bottom wall of the first cavity, and a gap flow channel is formed between the adjacent baffle plates and the top wall.

Further, the first partitioning member is an annular plate coaxial with the inner cylinder, an inner ring of the annular plate is connected to the inner cylinder, and an outer ring of the annular plate is connected to the outer cylinder.

Further, the jacket device also comprises a second partition piece, the second partition piece is an annular plate coaxial with the inner cylinder, the second partition piece is arranged in the first cavity and divides the first cavity into a plurality of accommodating cavities, and each accommodating cavity comprises the serpentine channel.

Further, the heights of the two adjacent accommodating cavities along the height direction of the inner cylinder are equal.

Further, the second partition member is provided with one, and the second partition member divides the first cavity into two accommodation chambers.

Further, the inner cylinder is provided with radiating fins.

Furthermore, the radiating fins are arranged in a plurality, and the radiating fins are arranged on the inner barrel at equal intervals along the circumferential direction of the inner barrel.

Furthermore, the first partition part, the inner cylinder and the outer cylinder jointly form a second cavity, the second cavity is an arc-shaped cavity, and the first partition part is arranged between the second cavity and the first cavity.

Further, a guide plate is arranged in the second cavity, and the guide plate and the second cavity jointly form a spiral channel for the medium to flow.

The utility model has the advantages that:

the utility model provides a jacket device, first separation member enclose jointly with inner tube and urceolus and establish and form first cavity, and first cavity is the annular chamber, and first separation member has improved jacket device's intensity, has reduced the design wall thickness of jacket device's inner tube, has improved the heat transfer efficiency of jacket device inner medium. A plurality of baffle plates are arranged in the annular cavity at intervals, one side of each baffle plate is connected with the inner cylinder or the outer cylinder, and the plurality of baffle plates and the first cavity are enclosed into a snake-shaped channel, so that the temperature difference of media at the upper part and the lower part of the jacket device is reduced, and the heat transfer efficiency of the media is improved.

Drawings

FIG. 1 is a schematic view of a jacket according to the prior art;

FIG. 2 is an expanded view of the media flow direction of FIG. 1;

fig. 3 is a first schematic structural diagram of a jacket according to the present invention;

FIG. 4 is an expanded view of the direction of flow of the medium in the first cavity of FIG. 3;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 6 is a schematic structural diagram of a jacket according to the present invention;

fig. 7 is a schematic view showing the development of the flow direction of the medium in the receiving chamber in fig. 6.

In the figure:

10. an inner barrel; 20. an outer cylinder;

1. a first separator; 2. a baffle plate; 3. a second separator; 4. a first cavity; 41. an accommodating chamber; 5. a second cavity; 6. a baffle; 7. an inlet; 8. and (7) an outlet.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 3, the jacket apparatus proposed in this embodiment is mainly used for polysilicon reduction furnace equipment, and includes an inner cylinder 10, an outer cylinder 20, and a first partition 1, where the inner cylinder 10 may be a vessel wall of a pressure vessel, or may be a structure that is sleeved on the pressure vessel and is in contact with the vessel wall of the pressure vessel. Wherein the first separator 1, the inner cylinder 10 and the outer cylinder 20 together enclose to form a first cavity 4, and the first cavity 4 is an annular cavity. It should be noted that the jacket device further comprises a base, which is in the form of an annular flange, for sealing the opening of the first cavity 4 to form a closed annular cavity. A plurality of baffle plates 2 are arranged in the annular cavity at intervals along the circumferential direction of the annular cavity, one side of each baffle plate 2 is connected with the inner cylinder 10 or the outer cylinder 20, and the plurality of baffle plates 2 and the first cavity 4 jointly form a snake-shaped channel for medium flowing.

In the clamping device, the first separating element 1, the inner cylinder 10 and the outer cylinder 20 are arranged together to form the first cavity 4, and the first separating element 1 is arranged between the inner cylinder 10 and the outer cylinder 20, so that the strength of the clamping device is improved, the design wall thickness of the inner cylinder 10 of the clamping device is reduced, and the heat transfer efficiency of a medium in the clamping device is improved. A plurality of baffle plates 2 and the annular cavity are enclosed to form a snake-shaped channel, so that the temperature difference of the medium at the upper part and the lower part of the jacket device is reduced, and the heat transfer efficiency of the medium is improved.

Fig. 4 is a developed schematic view of the flow direction of the medium in the first cavity 4. As shown in fig. 4 and 5, a plurality of baffles 2 are arranged in the first cavity 4 at equal intervals to make the flow rate of the medium in the serpentine channel the same, so that the heat transfer uniformity and the heat transfer efficiency of the medium in the first cavity 4 are improved. One of two adjacent baffling boards 2 links to each other with the roof of first cavity 4, and has the clearance runner between with the diapire, and another links to each other with the diapire of first cavity 4, and has the clearance runner between with the roof, and a plurality of baffling boards 2 dislocation interval sets up in first cavity 4 and encloses into above-mentioned snakelike passageway with first cavity 4 jointly. It is understood that the specific spacing between two adjacent baffles 2 is required according to the size of the jacket device and the heat exchange requirement, and the embodiment is not particularly limited.

As shown in fig. 5, in the present embodiment, one side of each baffle plate 2 is connected to the wall of the outer cylinder 20, which facilitates the processing and manufacturing of the baffle plate 2 and reduces the cost of the jacket device. It should be noted that a preset gap exists between the other side of the baffle plate 2 and the wall of the inner cylinder 10, and the value of the preset gap is preferably 1mm to 2mm, so as to increase the flow velocity of the heat transfer medium in the first cavity 4 and improve the heat transfer efficiency of the medium. In other embodiments, one side of the baffle plate 2 may also be connected to the wall of the inner cylinder 10, a predetermined gap exists between the other side of the baffle plate 2 and the wall of the outer cylinder 20, or one side of the baffle plate 2 is connected to the wall of the outer cylinder 20, and the other side of the baffle plate 2 is connected to or abutted against the wall of the inner cylinder 10.

In this example, the first separator 1 is an annular plate coaxial with the inner cylinder 10, an inner ring of the annular plate is connected to the inner cylinder 10, an outer ring of the annular plate is connected to the outer cylinder 20 to divide a heat transfer cavity enclosed by the inner cylinder 10, the outer cylinder 20 and the base into a first cavity 4 and a second cavity 5, and the first cavity 4 is an annular cavity and the second cavity 5 is an arc-shaped cavity. The first partition 1 is preferably provided at a position where the annular chamber and the arc-shaped chamber of the jacket device are connected to increase the distance of the medium flowing in the serpentine path in the height direction of the inner tube 10, reduce the temperature difference between the upper and lower portions of the jacket device, and increase the heat transfer efficiency of the medium.

In the present embodiment, a baffle 6 is disposed in the second cavity 5, and the baffle 6 and the second cavity 5 together form a spiral channel for the medium to flow. It can be understood that, because the second cavity 5 is an arc-shaped cavity, the height of the second cavity in the height direction of the inner cylinder 10 is small, the temperature difference between the media of the upper part and the lower part of the arc-shaped cavity is not obvious, and the influence on the heat transfer efficiency of the media is small, the traditional spiral channel is arranged in the second cavity 5 for the media to flow, so that the structure of the jacket device is simplified, and the production cost is reduced.

As shown in fig. 6, the jacket device further includes a second partition member 3, the second partition member 3 is disposed in the first cavity 4 and divides the first cavity 4 into a plurality of accommodating chambers 41, and each accommodating chamber 41 includes the serpentine channel.

In the present embodiment, the second separator 3 and the first separator 1 have the same structure and size, and are each an annular plate coaxial with the inner cylinder 10. The second partition 3 further enhances the strength of the jacket device, reduces the design wall thickness of the inner cylinder 10 of the jacket device, and improves the heat transfer efficiency of the medium in the jacket device.

Fig. 7 is an expanded view showing the flowing direction of the medium in the ring-shaped chamber, and as shown in fig. 6 and 7, in this embodiment, one second partition 3 is provided and divides the first cavity 4 into two accommodating chambers 41, and the medium flows along the serpentine path in the two accommodating chambers 41, respectively. In other embodiments, two or more second partitions 3 may also be provided, and the heights of two adjacent accommodating cavities 41 in the height direction of the inner barrel 10 are equal, so that the medium flow rate in each accommodating cavity 41 is the same, and the heat transfer uniformity and the heat transfer efficiency of the jacket device are further improved.

In order to further improve the heat transfer efficiency of the jacket device, the inner cylinder 10 of the jacket device is further provided with heat dissipation fins. In the present embodiment, the heat dissipating fins are rectangular heat dissipating plates, and a plurality of heat dissipating fins are provided on the inner cylinder 10 at equal intervals in the circumferential direction of the inner cylinder 10. The number, size and specific arrangement position of the heat dissipation fins need to be determined according to the design requirements of the jacket device, and the description is omitted in this embodiment.

It is to be noted that each receiving chamber 41 and the second cavity 5 comprises an inlet 7 for the inflow of the medium and an outlet 8 for the outflow of the medium. The sizes and installation positions of the inlet 7 and the outlet 8 may be determined according to design requirements of the jacket device, and the present embodiment is not particularly limited.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A jacketing device, comprising:

the device comprises an inner cylinder (10), an outer cylinder (20) and a first separating element (1), wherein the first separating element (1), the inner cylinder (10) and the outer cylinder (20) jointly enclose to form a first cavity (4), and the first cavity (4) is an annular cavity;

the plurality of baffle plates (2) are arranged, one side of each baffle plate (2) is connected with the inner cylinder (10) or the outer cylinder (20), the plurality of baffle plates (2) are arranged in the first cavity (4) at intervals along the circumferential direction of the jacket device, and the plurality of baffle plates (2) and the first cavity (4) jointly form a snake-shaped channel for medium flowing.

2. The jacket device according to claim 1, wherein a plurality of baffle plates (2) are arranged in the first cavity (4) at equal intervals, one of two adjacent baffle plates (2) is connected with the top wall of the first cavity (4) and has a gap flow passage with the bottom wall, the other baffle plate is connected with the bottom wall of the first cavity (4) and has a gap flow passage with the top wall.

3. Jacket device according to claim 1, characterized in that the first partition (1) is an annular plate coaxial with the inner cylinder (10), the inner ring of which is connected to the inner cylinder (10) and the outer ring of which is connected to the outer cylinder (20).

4. Jacket device according to claim 1, characterized in that it further comprises a second partition (3), said second partition (3) being an annular plate coaxial with said inner cylinder (10), said second partition (3) being arranged in said first cavity (4) and dividing said first cavity (4) into a plurality of containment chambers (41), each of said containment chambers (41) comprising said serpentine channel therein.

5. Jacket device according to claim 4, characterized in that the heights of two adjacent containment chambers (41) in the direction of the height of the inner cylinder (10) are equal.

6. Jacket device according to claim 5, characterized in that the second partition (3) is provided with one, the second partition (3) dividing the first cavity (4) into two containment chambers (41).

7. Jacket device according to claim 1, characterized in that the inner cylinder (10) is provided with heat dissipating fins.

8. The jacket apparatus according to claim 7, wherein the heat radiating fins are provided in plural, and the plural heat radiating fins are provided in the inner cylinder (10) at equal intervals in the circumferential direction of the inner cylinder (10).

9. Jacket device according to claim 1, characterized in that the first partition (1) also encloses a second cavity (5) with the inner cylinder (10) and the outer cylinder (20), the second cavity (5) being an arc-shaped cavity, the first partition (1) being arranged between the second cavity (5) and the first cavity (4).

10. Jacket device according to claim 9, characterized in that a baffle (6) is arranged in the second cavity (5), the baffle (6) and the second cavity (5) together forming a spiral channel for the flow of the medium.