阅读说明：本技术 入口装置 (Inlet device ) 是由 王金光 尹青锋 董汪平 于 2018-06-06 设计创作，主要内容包括：一种入口装置,包括入口套管和缓冲套管,缓冲套管连接于入口套管的一端,且缓冲套管的一部分管壁朝入口套管的另一端延伸形成缓冲腔。该入口装置能够降低原料对设备入口的冲刷磨损。(An inlet device comprises an inlet sleeve and a buffer sleeve, wherein the buffer sleeve is connected to one end of the inlet sleeve, and a part of the wall of the buffer sleeve extends towards the other end of the inlet sleeve to form a buffer cavity. The inlet device can reduce the scouring abrasion of the raw materials to the inlet of the equipment.)

1. An inlet device, characterized in that it comprises an inlet sleeve (9) and a buffer sleeve, said buffer sleeve being connected to one end of said inlet sleeve (9) and a portion of the wall of said buffer sleeve extending towards the other end of said inlet sleeve (9) forming a buffer chamber (13).

2. The inlet device according to claim 1, wherein the buffer sleeve comprises a first cylindrical section (8), a second cylindrical section (5), an end plate (4) and a third cylindrical section (10) which are connected in sequence, wherein the first cylindrical section (8) is connected to the one end of the inlet sleeve (9), the second cylindrical section (5) is sleeved outside the inlet sleeve (9) and is located between the one end and the other end of the inlet sleeve (9) along the axial direction of the inlet sleeve (9), the end plate (4) is annular, the inner circumference of the end plate is connected with the second cylindrical section (5), the outer circumference of the end plate is connected with the third cylindrical section (10), and the third cylindrical section (10) is sleeved outside the first cylindrical section (8) and the second cylindrical section (5).

3. An inlet arrangement according to claim 2, characterized in that the first shell ring (8) is a circular table top and that the angle between the generatrix of the first shell ring (8) and the radial cross-section of the inlet sleeve (9) is β.

4. An inlet arrangement according to claim 2, characterized in that the second shell ring (5) is a circular table top, and the generatrix of the second shell ring (5) is at an angle γ to its axis.

5. An inlet arrangement according to claim 2, characterized in that the third shell ring (10) is a circular table top, and the angle between the generatrix of the third shell ring (10) and its axis is δ.

6. The inlet device according to claim 2, further comprising a flow guide member disposed in the buffer chamber (13), wherein the flow guide member comprises a flow guide plate (6) and a splash plate (7), the flow guide plate (6) is a circular table, the splash plate (7) is annular, one end of the flow guide plate (6) is connected to the second cylindrical section (5), and the other end of the flow guide plate is connected to the splash plate (7).

7. An inlet arrangement according to claim 2, characterized in that a number of ribs (3) are provided on the end plate (4) near the other end of the inlet sleeve (9) in the radial direction of the end plate (4).

8. The inlet device according to claim 8, further comprising an annular connecting plate (2) sleeved outside the inlet sleeve (9), wherein the radial inner ends of the plurality of rib plates (3) are connected to the annular connecting plate (2).

9. An inlet arrangement according to claim 1, characterized in that the cross-sectional area of the buffer chamber (13) increases in the radial cross-section of the inlet sleeve in a direction gradually approaching the one end of the inlet sleeve (9).

10. An inlet arrangement according to claim 1, characterized in that the inlet sleeve (9) is provided with an annular stiffening plate (1) on its outer circumference.

Technical Field

The invention relates to the field of petrochemical and coal chemical equipment, in particular to an inlet device.

background

In the fields of petrochemical industry and coal chemical industry, equipment and pipelines are often applied to severe environments, such as acid environments, abrasion environments and the like. In such an environment, the raw material may be carried through erosion and abrasion of equipment and piping materials, which may be more severe if the raw material is a gas-liquid mixture. One current solution is to increase the material corrosion margin of the equipment or pipeline, and if the problem still cannot be solved, high-grade materials are selected, which greatly increases the equipment cost. Therefore, an ideal anti-erosion and abrasion scheme is expected to solve the problems in the prior art.

Disclosure of Invention

the object of the invention is to provide an inlet device which reduces the erosive wear of the apparatus inlet and piping by the material.

The invention provides an inlet device which comprises an inlet sleeve and a buffer sleeve, wherein the buffer sleeve is connected to one end of the inlet sleeve, and a part of the wall of the buffer sleeve extends towards the other end of the inlet sleeve to form a buffer cavity.

Preferably, buffer tube is including the first shell ring, second shell ring, end plate and the third shell ring that connect gradually, wherein first shell ring connect in the entry sheathed tube one end, the second shell ring cover is located the sheathed tube outside of entry, and follows the sheathed tube axial direction of entry is located the sheathed tube one end with between the other end, the end plate is the annular, its inner periphery with the second shell ring is connected, the periphery with the third shell ring is connected, the third shell ring cover is located first shell ring with the outside of second shell ring.

Preferably, the first cylindrical shell is a circular table, and an included angle between a generatrix of the first cylindrical shell and a radial cross section of the inlet sleeve is beta.

Preferably, the second cylindrical shell section is a circular table, and an included angle between a generatrix of the second cylindrical shell section and an axis of the second cylindrical shell section is gamma.

Preferably, the third cylindrical shell is a circular table, and an included angle between a generatrix of the third cylindrical shell and an axis of the third cylindrical shell is delta.

Preferably, the inlet device further includes a flow guide member disposed in the buffer cavity, the flow guide member includes a flow guide plate and a splash guard, the flow guide plate is a circular table surface, the splash guard is annular, one end of the flow guide plate is connected to the second cylindrical shell, and the other end of the flow guide plate is connected to the splash guard.

Preferably, a plurality of rib plates are arranged on the end plate close to the other end of the inlet casing along the radial direction of the end plate.

Preferably, the inlet device further comprises an annular connecting plate sleeved outside the inlet sleeve, and the radial inner ends of the plurality of rib plates are connected to the annular connecting plate.

preferably, the cross-sectional area of the buffer chamber is gradually increased in a radial cross-section of the inlet sleeve in a direction gradually approaching the one end of the inlet sleeve.

Preferably, an annular reinforcing plate is provided on an outer periphery of the inlet sleeve.

The invention has the advantages that the raw material flows back to the raw material inlet end of the inlet sleeve along the tube wall of the buffer sleeve and enters the buffer cavity, so that the speed is reduced, the raw material cannot directly enter the raw material storage device at high flow speed, and the scouring abrasion of the raw material to the device inlet is reduced.

The apparatus of the present invention has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts.

Fig. 1 shows a front sectional view of an inlet device according to an exemplary embodiment of the present invention;

FIG. 2 shows a cross-sectional view taken along section B-B of FIG. 1;

FIG. 3 is an enlarged partial schematic view of the circled portion D of FIG. 1;

FIG. 4 shows a partial cross-sectional view of section C-C of FIG. 3;

Fig. 5 shows a cross-sectional view of section a-a in fig. 2.

Description of reference numerals:

1. An annular reinforcing plate; 2. an annular connecting plate; 3. a rib plate; 4. an end plate; 5. a second shell ring; 6. a baffle; 7. a splash shield; 8. a first shell ring; 9. an inlet cannula; 10. a third shell ring; 11. a rib plate; 12. a baffle plate; 13. buffer chamber, 14, raw materials storage equipment.

Detailed Description

The invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

An inlet device according to an exemplary embodiment of the present invention includes an inlet sleeve and a buffer sleeve connected to one end of the inlet sleeve, with a portion of a wall of the buffer sleeve extending toward the other end of the inlet sleeve to form a buffer chamber.

When the device is used, the inlet sleeve is connected to the raw material pipeline, and the buffer sleeve is connected to inlets of equipment such as a tank for storing raw materials. The raw materials passes through raw materials pipeline entering entry sleeve pipe, then gets into buffer tube, and buffer tube's partly pipe wall extends towards entry sheathed tube other end and forms the cushion chamber, and consequently the raw materials flows back to entry sheathed tube one end (the raw materials gets into the end) along buffer tube's pipe wall, gets into the cushion chamber to speed reduces, can directly not get into raw materials storage equipment with the high velocity of flow, has reduced the raw materials to the erosive wear of equipment entry, also can reduce the erosive wear to entry pipeline.

In practical application, the size of the buffer cavity can be designed according to requirements, so that the retention time of the raw materials in the buffer cavity is adjusted, and the scouring wear of the raw materials to the inlet of the equipment is effectively reduced.

In one example, the buffer sleeve comprises a first shell ring, a second shell ring, an end plate and a third shell ring which are connected in sequence, wherein the first shell ring is connected to one end of the inlet sleeve, the second shell ring is sleeved outside the inlet sleeve and is located between one end of the inlet sleeve and the other end of the inlet sleeve along the axial direction of the inlet sleeve, the end plate is annular, the inner periphery of the end plate is connected with the second shell ring, the outer periphery of the end plate is connected with the third shell ring, and the third shell ring is sleeved outside the first shell ring and the second shell ring.

The first, second, end and third shell sections enclose a buffer chamber, preferably with the end plate perpendicular to the axis of the inlet sleeve for ease of machining and assembly.

In one example, the first barrel section is a circular table, and the generatrix of the first barrel section is at an angle β to the radial cross-section of the inlet sleeve. The second cylinder section is also a circular table surface, and an included angle between a generatrix of the second cylinder section and the axis of the second cylinder section is gamma. The third cylinder section is also a circular table surface, and the included angle between the generatrix of the third cylinder section and the axis of the third cylinder section is delta. The included angles beta, gamma and delta can be determined according to actual working conditions. Preferably, the diameters of the circular table surfaces of the first shell ring and the second shell ring are gradually reduced and the diameter of the circular table surface of the third shell ring is gradually increased along the direction close to the end (i.e. the end facing the raw material storage device) of the inlet sleeve, so that the gas-liquid raw material can enter the buffer cavity, and the impact force of the gas-liquid raw material on the pipe wall of the buffer sleeve is reduced.

In one example, the inlet device further comprises a flow guide member arranged in the buffer cavity, the flow guide member comprises a flow guide plate and a splash guard, the flow guide plate is a circular table surface, the splash guard is annular, one end of the flow guide plate is connected to the second cylindrical section, and the other end of the flow guide plate is connected to the splash guard.

The flow guide piece is arranged in the buffer cavity, so that the raw materials flowing at high speed can be prevented from directly impacting the end plate to influence the sealing performance of the inlet device. Preferably, the included angle between the connection part of the guide plate and the second cylinder section is alpha, and the splash guard is arranged perpendicular to the axis of the inlet sleeve. The included angle alpha can be determined according to actual working conditions.

In one example, a plurality of ribs are provided on the end plate in a radial direction of the end plate near the other end of the inlet casing. The rib plate is used for improving the strength of the end plate. Preferably, the plurality of rib plates are uniformly distributed along the circumferential direction of the end plate.

In one example, the inlet device further comprises an annular connecting plate sleeved outside the inlet sleeve, and the radial inner ends of the rib plates are connected to the annular connecting plate, so that the rib plates can be fixed conveniently, and the overall strength of the device is improved.

In one example, the buffer chamber has a gradually increasing cross-sectional area in a radial cross-section of the inlet sleeve in a direction gradually approaching the one end of the inlet sleeve (i.e., toward the one end of the feedstock storage device) to facilitate the gas-liquid feedstock entering the buffer chamber and reducing its impact force on the wall of the buffer sleeve.

In one example, an annular reinforcing plate is provided on the outer periphery of the inlet sleeve to improve the strength of the inlet sleeve.

In one example, the components of the inlet device are connected by welding, and the buffer sleeve is connected with the raw material storage device by welding.