Improved trichlorosilane heat exchanger

Abstract

The utility model provides an improved trichlorosilane heat exchanger which comprises a barrel body, one end of the barrel body abuts against an end cover, a connecting pipe is fixedly connected to the end cover, the connecting pipe is connected to a discharging pipe in a sliding mode, a connecting base is fixedly connected to the barrel body, the discharging pipe is fixedly connected to the connecting base, and the discharging pipe is connected to the connecting base in a sliding mode. An opening and closing structure is arranged on the connecting base and comprises an electric push rod and a connecting sleeve, the electric push rod is installed on the connecting base, the connecting sleeve is fixedly connected to the connecting pipe and fixedly connected with the extending end of the electric push rod, a connecting rod is fixedly connected to the discharging pipe, and the connecting rod is fixedly connected to the discharging pipe. A guide shaft is fixedly connected to the connecting rod, a guide groove is formed in the connecting sleeve, one end of the guide shaft extends into the guide groove and is in sliding connection with the connecting sleeve, and a heat exchange structure is arranged in the barrel. And the end cover can be quickly disassembled, so that the heat exchange tube is convenient to clean.

Description

TECHNICAL FIELD

[0001] The utility model belongs to trichlorosilane production and processing technical field, concretely relates to an improved trichlorosilane heat exchanger. BACKGROUND

[0002] In the process of high-precision silicon production, after the reaction of industrial silicon powder and hydrogen chloride, high-temperature trichlorosilane needs to be heat-exchanged to generate liquid hydrogen silane through a heat exchanger. The surface of the heat exchange tube of the heat exchanger will produce scale after being used for a period of time. In order to ensure the efficiency of heat exchange, the heat exchange tube needs to be cleaned regularly. Before cleaning, the heat exchange tube needs to be detached from the heat exchanger.

[0003] However, the end of the traditional heat exchanger is provided with an end cover through a plurality of bolts. When the heat exchange tube needs to be detached and cleaned, the end cover needs to be removed from the end of the heat exchanger. A large amount of time is needed to twist the plurality of bolts each time the end cover is detached and assembled, which wastes a certain amount of time and physical strength, and is not convenient for the quick detachment of the end cover, thereby being not convenient for the cleaning of the heat exchange tube. UTILITY MODEL CONTENTS

[0004] The utility model aims to solve the above-mentioned problems and provide an improved trichlorosilane heat exchanger, which can realize the quick detachment of the end cover and is convenient for the cleaning of the heat exchange tube.

[0005] The utility model realizes the above-mentioned purposes through the following technical solutions.

[0006] An improved trichlorosilane heat exchanger, comprising a cylinder, one end of the cylinder abutting against an end cover, the end cover being fixedly connected with a connecting pipe, the connecting pipe being slidingly connected with a discharge pipe, the cylinder being fixedly connected with a connecting seat, the connecting seat being fixedly connected with the discharge pipe, the connecting seat being provided with an opening and closing structure, the opening and closing structure comprising an electric push rod and a connecting sleeve, the electric push rod being installed on the connecting seat, the connecting pipe being fixedly connected with the connecting sleeve, the connecting sleeve and the extended end of the electric push rod being fixedly connected, the discharge pipe being fixedly connected with a connecting rod, the connecting rod being fixedly connected with a guide shaft, the connecting sleeve being provided with a guide groove, one end of the guide shaft extending into the guide groove and being slidingly connected with the connecting sleeve.

[0007] As a preferred scheme of the embodiment, the two ends of the guide groove are horizontally arranged, and the middle part of the guide groove is in a spiral structure.

[0008] As a preferred scheme of the embodiment, the inside of the cylinder is provided with a heat exchange structure, the heat exchange structure comprising a connecting plate and a heat exchange pipe, the inside of the cylinder being provided with two connecting plates, a plurality of heat exchange pipes being fixedly connected between the two connecting plates, one of the connecting plates abutting against the cylinder, and the other connecting plate abutting against the end cover.

[0009] As a preferred scheme of the embodiment, a plurality of baffles are fixedly connected to the plurality of heat exchange pipes, a plurality of sealing rings are clamped in the cylinder, the outer side of the baffle abuts against the adjacent sealing ring, and the plurality of baffles are linearly and equidistantly distributed.

[0010] As a preferred scheme of the embodiment, a water inlet pipe is fixedly connected to the cylinder, and a drain pipe is fixedly connected to the cylinder.

[0011] As a preferred scheme of the embodiment, a feed pipe is fixedly connected to the cylinder, and two support seats are fixedly connected to the cylinder.

[0012] As a preferred scheme of the embodiment, a first sealing gasket is clamped on the end cover, and the first sealing gasket abuts against the cylinder.

[0013] As a preferred scheme of the embodiment, a second sealing gasket is clamped on the end cover, and the second sealing gasket abuts against one of the connecting plates.

[0014] As a preferred scheme of the embodiment, a third sealing gasket is clamped on the cylinder, and the third sealing gasket abuts against the other connecting plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] When the heat exchange structure needs to be cleaned, the electric push rod is started, the electric push rod is elongated to drive the connecting sleeve to move, the connecting sleeve drives the connecting pipe to slide on the discharge pipe, the connecting pipe drives the end cover to move synchronously, the connecting sleeve moves in the guide groove, the connecting sleeve does not rotate when the guide shaft moves at the horizontal positions at both ends of the guide groove, the connecting sleeve rotates when the guide shaft moves to the position of the spiral structure in the middle of the guide groove, the connecting sleeve drives the connecting pipe to rotate, the connecting pipe drives the end cover to rotate, the electric push rod stops elongating after the connecting sleeve rotates by 90 degrees, at this time, the end cover deviates from one end of the cylinder and does not resist the heat exchange structure, so that the heat exchange structure can be taken out from the inside of the cylinder for cleaning, and the time for disassembly is effectively shortened, physical strength is saved, and the cleaning of the heat exchange structure is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is Figure 1 It is an enlarged schematic diagram of A shown in the figure;

[0019] Figure 3 Figure 1 is a schematic view of the connection structure of the heat exchange pipe and the partition plate of the present utility model;

[0020] Figure 4 Figure 2 is an enlarged schematic view of part A shown in Figure 1; Figure 3

[0021] Figure 3 is an enlarged schematic view of part B shown in Figure 1; Figure 5 Figure 3 Figure 4 is an enlarged schematic view of part C shown in Figure 1;

[0022] Figure 6 Figure 5 is a schematic view of the connection structure of the partition plate and the cylinder of the present utility model.

[0023] In the figure: 1, cylinder; 2, end cover; 3, connecting pipe; 4, discharge pipe; 5, connecting seat; 6, opening and closing structure; 601, electric push rod; 602, connecting sleeve; 603, guide groove; 604, guide shaft; 605, connecting rod; 7, heat exchange structure; 701, connecting plate; 702, heat exchange pipe; 703, partition plate; 8, first sealing gasket; 9, second sealing gasket; 10, third sealing gasket; 11, sealing ring; 12, water inlet pipe; 13, drain pipe; 14, supporting seat; 15, feed pipe. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present utility model will be apparently and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by those of ordinary skill in the art without any creative work fall within the scope of protection of the present utility model.

[0025] Please refer to Figure 1 , Figure 2 and Figure 4 ​The utility model discloses an improved trichlorosilane heat exchanger, including cylinder 1, the one end of cylinder 1 is in contact with end cover 2, and the fixed connection of end cover 2 has connecting pipe 3, and connecting pipe 3 is slidably connected in discharge pipe 4, and the fixed connection of cylinder 1 has connecting seat 5, the fixed connection of connecting seat 5 has discharge pipe 4, and the opening and closing structure 6 is equipped on connecting seat 5. The opening and closing structure 6 includes electric push rod 601 and connecting sleeve 602, and the electric push rod 601 is installed on connecting seat 5, and the fixed connection of connecting sleeve 602 has connecting pipe 3, and the fixed connection between connecting sleeve 602 and the elongation end of electric push rod 601. The fixed connection of connecting rod 605 has guide shaft 604 on discharge pipe 4, and the guide groove 603 is equipped on connecting sleeve 602, and one end of guide shaft 604 extends to the inside of guide groove 603 and is slidably connected with connecting sleeve 602. The both ends of guide groove 603 are horizontally arranged, and the middle part of guide groove 603 is in spiral structure, and when guide shaft 604 moves in the middle part of guide groove 603, connecting sleeve 602 can be rotated.

[0026] Specifically in the embodiment, when the scale on the surface of heat exchange pipe 702 needs to be cleaned in use, the electric push rod 601 can be started, the electric push rod 601 is elongated to drive the movement of connecting sleeve 602, the connecting sleeve 602 drives the sliding of connecting pipe 3 on discharge pipe 4, and at the same time, connecting pipe 3 drives the synchronous movement of end cover 2, the connecting sleeve 602 moves while guide shaft 604 moves in the inside of guide groove 603, when guide shaft 604 moves in the horizontal position at both ends of guide groove 603, connecting sleeve 602 does not rotate, when guide shaft 604 moves to the position of the spiral structure in the middle part of guide groove 603, connecting sleeve 602 rotates with the movement of guide shaft 604 in the inside of guide groove 603, the rotation of connecting sleeve 602 drives the rotation of connecting pipe 3, the rotation of connecting pipe 3 drives the rotation of end cover 2, and the electric push rod 601 stops elongating after the rotation of connecting sleeve 602 by 90 degrees, at this time, end cover 2 deviates from one end of cylinder 1 and does not resist heat exchange pipe 702, so that the plurality of heat exchange pipes 702 can be taken out from the inside of cylinder 1 for cleaning, and since a large amount of time and physical strength are not needed to twist a plurality of bolts in the process of dismounting end cover 2, the dismounting time is effectively shortened, physical strength is saved, and the cleaning of heat exchange pipe 702 is facilitated.

[0027] Please refer to Figure 3 、 Figure 4 、 Figure 5 And Figure 6As shown, the inside of the barrel 1 is provided with a heat exchange structure 7, which specifically includes a connecting plate 701 and a heat exchange pipe 702. The inside of the barrel 1 is provided with two connecting plates 701, and a plurality of heat exchange pipes 702 are fixedly connected between the two connecting plates 701. One of the connecting plates 701 abuts against the barrel 1, and the other connecting plate 701 abuts against the end cover 2, so that the heat exchange of trichlorosilane can be achieved. A plurality of partition plates 703 are fixedly connected to the plurality of heat exchange pipes 702, and a plurality of sealing rings 11 are clamped in the inside of the barrel 1. The outer side of the partition plate 703 abuts against the adjacent sealing ring 11. The plurality of partition plates 703 are linearly and equidistantly distributed, so that the contact time of the cooling water with the heat exchange pipes 702 can be increased, and the heat exchange effect can be effectively improved.

[0028] Specifically, in this embodiment, trichlorosilane enters the inside of the barrel 1 from the feed pipe 15, and then flows in the plurality of heat exchange pipes 702. At the same time, cooling water can enter the inside of the barrel 1 from the water inlet pipe 12, and then flow in the inside of the barrel 1, and finally flow out of the barrel 1 from the water outlet pipe 13. The cooling water can absorb the heat of trichlorosilane during the flowing process, so that the heat exchange is achieved. By arranging the plurality of partition plates 703, the plurality of heat exchange pipes 702 can be fixed, and the cooling water can flow in an S-shaped track, so that the contact time of the cooling water with the heat exchange pipes 702 can be increased, and the heat exchange effect can be effectively improved. The trichlorosilane after heat exchange flows into the connecting pipe 3, and finally flows out of the discharge pipe 4.

[0029] Please refer to Figures 1 to 5 As shown, the water inlet pipe 12 is fixedly connected to the barrel 1, and the water outlet pipe 13 is fixedly connected to the barrel 1, so that the cooling water can enter the inside of the barrel 1 from the water inlet pipe 12 and flow out of the barrel 1 from the water outlet pipe 13. The feed pipe 15 is fixedly connected to the barrel 1, and two support seats 14 are fixedly connected to the barrel 1, so that the barrel 1 can be supported by the support seats 14. The first sealing gasket 8 is clamped on the end cover 2, and abuts against the barrel 1, so that the sealing property between the end cover 2 and the barrel 1 can be improved. The second sealing gasket 9 is clamped on the end cover 2, and abuts against one of the connecting plates 701, so that the sealing property between the end cover 2 and the connecting plate 701 can be improved. The third sealing gasket 10 is clamped on the barrel 1, and abuts against the other connecting plate 701, so that the sealing property between the connecting plate 701 and the barrel 1 can be improved.

[0030] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0031] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. An improved heat exchanger for trichlorosilane comprising a cylindrical body (1) characterized in that: One end of the barrel (1) is in contact with the end cover (2), the end cover (2) is fixedly connected with the connecting pipe (3), the connecting pipe (3) is slidably connected with the discharge pipe (4), the barrel (1) is fixedly connected with the connecting seat (5), the connecting seat (5) is fixedly connected with the discharge pipe (4), the connecting seat (5) is provided with opening and closing structure (6). The opening and closing structure (6) includes an electric push rod (601) and a connecting sleeve (602), the connecting seat (5) is provided with an electric push rod (601), the connecting pipe (3) is fixedly connected with the connecting sleeve (602), the connecting sleeve (602) and the extension end of the electric push rod (601) are fixedly connected, the discharge pipe (4) is fixedly connected with the connecting rod (605), and the connecting rod (605) is fixedly connected with the guide shaft (604).

2. The improved trichlorosilane heat exchanger of claim 1, wherein: The connecting sleeve (602) is provided with a guide groove (603), one end of the guide shaft (604) extends into the guide groove (603) and is slidably connected with the connecting sleeve (602).

3. The improved trichlorosilane heat exchanger of claim 2, wherein: The two ends of the guide groove (603) are horizontally arranged, and the middle part of the guide groove (603) is in a spiral structure.

4. The improved trichlorosilane heat exchanger of claim 1, wherein: The inside of the barrel (1) is provided with a heat exchange structure (7), the heat exchange structure (7) includes a connecting plate (701) and a heat exchange pipe (702), the inside of the barrel (1) is provided with two connecting plates (701), a plurality of heat exchange pipes (702) are fixedly connected between the two connecting plates (701), one of the connecting plates (701) is in contact with the barrel (1), and the other connecting plate (701) is in contact with the end cover (2).

5. The improved trichlorosilane heat exchanger of claim 4, wherein: A plurality of the heat exchange pipes (702) are fixedly connected with a plurality of partition plates (703), a plurality of sealing rings (11) are clamped in the inside of the barrel (1), the outer side of the partition plate (703) is in contact with the adjacent sealing ring (11), and a plurality of the partition plates (703) are linearly and equidistantly distributed.

6. The improved trichlorosilane heat exchanger of claim 1, wherein: The barrel (1) is fixedly connected with a water inlet pipe (12), and the barrel (1) is fixedly connected with a drain pipe (13).

7. The improved trichlorosilane heat exchanger of claim 1, wherein: The barrel (1) is fixedly connected with a feeding pipe (15), and the barrel (1) is fixedly connected with two supporting seats (14).

8. The improved trichlorosilane heat exchanger of claim 1, wherein: The end cover (2) is clamped with a first sealing gasket (8), and the first sealing gasket (8) is in contact with the barrel (1).

9. The improved trichlorosilane heat exchanger of claim 4, wherein: The end cover (2) is clamped with a second sealing gasket (9), and the second sealing gasket (9) is in contact with one of the connecting plates (701).

10. The improved trichlorosilane heat exchanger of claim 4, wherein: The barrel (1) is clamped with a third sealing gasket (10), and the third sealing gasket (10) is in contact with the other connecting plate (701).

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