High liquid level distribution groove of tubular trickle reactor and tubular trickle reactor

Abstract

The utility model discloses a high liquid level distribution tank of a tubular trickle reactor, the tubular trickle reactor comprises a cylinder, a tube plate, a high liquid level distribution tank and an upper sealing head fixed at the upper end of the cylinder, the tube plate is fixed at the upper part of the cylinder, the high liquid level distribution tank is mounted on the tube plate, the upper end of the high liquid level distribution tank is provided with an opening, and the upper sealing head is fixed at the upper end of the cylinder. An opening of the high-liquid-level distribution groove extends to the middle of the top of the upper end socket, the cross section area of the opening of the high-liquid-level distribution groove is smaller than that of the bottom of the high-liquid-level distribution groove, and the high-liquid-level distribution groove is of a big-end-down structure. The large-end-down structure of the high-liquid-level distribution groove can make full use of the internal space of the upper sealing head, a higher liquid level can be achieved, and compared with a cylindrical structure, the high-liquid-level distribution groove can effectively reduce the loading risk and the control difficulty of the liquid level.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of trickle fixed bed reactor, especially relates to high liquid level distribution tank of column tube type trickle reactor and column tube type trickle reactor. BACKGROUND

[0002] Trickle fixed bed reactor is a kind of reactor that gas and liquid pass through granular solid catalyst bed to carry out gas-liquid-solid phase reaction process, and its flow control requirement is higher, and column tube type trickle reactor is more common trickle fixed bed reactor.The existing column tube type trickle reactor refers to Figure 1 And Figure 2 , including cylinder 1 and upper head 3, cylinder 1 and upper head 3 constitute reaction chamber, distribution tank 4a, trickle tube 5, tube sheet 2, reaction tube 6 (i.e. column tube) and baffle 7 are equipped in reaction chamber, distribution tank 4a is the cylindrical structure of open upper end, distribution tank 4a is fixed on tube sheet 2, upper head 3 covers distribution tank 4a opening 41, the upper end of reaction tube 6 is fixed on tube sheet 2, trickle tube 5 is arranged at the bottom of distribution tank 4a, and the upper end is communicated with the bottom of distribution tank 4a, and the lower end is communicated with corresponding reaction tube 6.

[0003] When using, when higher flow is required, according to the proportional relationship, its liquid level requirement is higher, and distribution tank 4a is fixed on tube sheet 2, so there is load risk when containing higher liquid level;In addition, upper head 3 is the structure that is shrunk upwards, which limits the height of cylindrical distribution tank 4a;In addition, cylindrical distribution tank 4a has the condition that more liquid is required to increase the liquid level for controlling flow, and there is the problem of difficult liquid level control in use. INVENTION CONTENTS

[0004] The utility model provides column tube type trickle reactor's high liquid level distribution tank and column tube type trickle reactor to overcome at least one deficiency aiming at the above problems.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A kind of high liquid level distribution tank of column tube type trickle reactor, column tube type trickle reactor includes cylinder, tube sheet, high liquid level distribution tank and upper head fixed on the upper end of cylinder, the tube sheet is fixed on the upper portion of the cylinder, high liquid level distribution tank is installed on the tube sheet, high liquid level distribution tank upper end has opening, the opening of high liquid level distribution tank extends to the middle of the top of the upper head, the cross-sectional area of the opening of high liquid level distribution tank is less than the cross-sectional area of the bottom of high liquid level distribution tank, high liquid level distribution tank is the structure of small upper and large lower.

[0007] The structure of the high liquid level distribution tank of the application can fully utilize the internal space of the upper head, can realize higher liquid level, and compared with the cylindrical structure, can effectively reduce the load risk.

[0008] In one of the embodiments of the present application, the cross-sectional area of the opening of the high liquid level distribution groove is 1 / 4 to 1 / 3 of the cross-sectional area of the bottom of the distribution groove.

[0009] In one of the embodiments of the present application, the high liquid level distribution groove is a conical cylinder structure.

[0010] In one of the embodiments of the present application, the high liquid level distribution groove is a conical cylinder structure that is contracted towards the center.

[0011] In one of the embodiments of the present application, the high liquid level distribution groove includes a first cylinder portion and a conical portion arranged in sequence from bottom to top, and the opening is located at the small-diameter end of the upper end of the conical portion.

[0012] In one of the embodiments of the present application, the high liquid level distribution groove includes a plurality of cylinder portions arranged in sequence from bottom to top, and the inner diameter of the upper cylinder portion is smaller than the inner diameter of the adjacent lower cylinder portion.

[0013] In one of the embodiments of the present application, the cylinder portion has two, including a first cylinder portion located at the lower portion and a second cylinder portion located at the upper portion.

[0014] In one of the embodiments of the present application, the upper head has a hollow extension pipe extending upward in the middle portion, the upper portion of the high liquid level distribution groove has an extension portion, the extension portion penetrates into the hollow extension pipe, and the upper end of the extension portion has the opening.

[0015] The hollow extension pipe forms an expanded cavity, the high liquid level distribution groove extends into the hollow extension pipe through the extension portion, which can break through the limitation of the traditional upper head and realize higher liquid level control (i.e. higher flow control).

[0016] In one of the embodiments of the present application, the high liquid level distribution groove further includes a first cylinder portion located at the lowermost portion and a transition portion connecting the first cylinder portion and the extension portion, the inner diameter of the lower end of the transition portion is the same as that of the first cylinder portion, and the inner diameter of the upper end of the transition portion is the same as that of the extension portion.

[0017] The present application also discloses a tube-type trickle reactor, which includes a cylinder body, a tube plate, a high liquid level distribution groove, and an upper head fixed on the upper end of the cylinder body, the tube plate is fixed on the upper portion of the cylinder body, and the high liquid level distribution groove is the high liquid level distribution groove of the tube-type trickle reactor described above.

[0018] In one of the embodiments of the utility model, still include liquid inlet pipe, drip pipe, reaction tube and baffle, the upper end of reaction tube with pipe plate fixed, drip pipe set in high liquid level distribution groove bottom, the upper end of drip pipe with distribution groove formed space intercommunication, the lower end of drip pipe with corresponding reaction tube intercommunication, baffle set up on reaction tube, liquid inlet pipe from the upper end of upper head middle position into the upper head, with the opening butt joint, for conveying reaction medium to opening.

[0019] The utility model discloses the beneficial effect is: the structure of this application high liquid level distribution groove can make full use of the internal space of upper head, can realize higher liquid level, and compared with the cylindrical structure, can effectively reduce the control difficulty of load risk and liquid level. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the partial structure schematic diagram of existing tube type trickle reactor;

[0021] Figure 2 It is the simple schematic diagram of existing distribution groove;

[0022] Figure 3 It is the partial structure schematic diagram of embodiment 1 tube type trickle reactor;

[0023] Figure 4 It is the simple schematic diagram of embodiment 1 high liquid level distribution groove;

[0024] Figure 5 It is the partial structure schematic diagram of embodiment 2 tube type trickle reactor;

[0025] Figure 6 It is the simple schematic diagram of embodiment 2 high liquid level distribution groove;

[0026] Figure 7 It is the partial structure schematic diagram of embodiment 3 tube type trickle reactor;

[0027] Figure 8 It is the simple schematic diagram of embodiment 3 high liquid level distribution groove;

[0028] Figure 9 It is the partial structure schematic diagram of embodiment 4 tube type trickle reactor;

[0029] Figure 10 It is the simple schematic diagram of embodiment 4 high liquid level distribution groove;

[0030] Figure 11 It is the partial structure schematic diagram of embodiment 5 tube type trickle reactor;

[0031] Figure 12 It is the simple schematic diagram of embodiment 5 high liquid level distribution groove.

[0032] The reference signs in the drawings are:

[0033] 1, cylinder; 2, tube sheet; 3, upper head; 31, hollow extension pipe; 4a, distribution groove; 4, high liquid level distribution groove; 41, opening; 42, first cylindrical part; 43, conical part; 44, second cylindrical part; 45, extension part; 46, transition part; 5, trickle pipe; 6, reaction tube; 7, baffle; 8, liquid inlet pipe. DETAILED DESCRIPTION

[0034] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0035] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "inner", "outer" and the like are based on the positions or location relationships shown in the drawings, or the positions or location relationships commonly placed when the products of the present application are used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] The present utility model will be described in detail below with reference to the drawings.

[0038] Embodiment 1

[0039] As Figure 3 And 4As shown in the drawings, a shell-and-tube trickle reactor comprises a cylinder 1, a tube sheet 2, a high liquid level distribution groove 4, trickle tubes 5, reaction tubes 6, baffles 7, and an upper head 3 fixed to the upper end of the cylinder 1. The tube sheet 2 is fixed to the upper portion of the cylinder 1, the upper end of the reaction tube 6 is fixed to the tube sheet 2, the trickle tube 5 is arranged at the bottom of the high liquid level distribution groove 4, the upper end of the trickle tube 5 is in communication with the space formed by the distribution groove, the lower end of the trickle tube 5 is in communication with the corresponding reaction tube 6, and the baffle 7 is arranged on the reaction tube 6,

[0040] As shown in the drawings, Figure 3 and 4 In this embodiment, the high liquid level distribution groove 4 is installed on the tube sheet 2, the upper end of the high liquid level distribution groove 4 has an opening 41, the opening 41 of the high liquid level distribution groove 4 extends to the middle of the top of the upper head 3, the cross-sectional area of the opening 41 of the high liquid level distribution groove 4 is smaller than the cross-sectional area of the bottom of the high liquid level distribution groove 4, and the high liquid level distribution groove 4 has a structure of being small at the top and large at the bottom.

[0041] As shown in the drawings, Figure 3 and 4 In this embodiment, the high liquid level distribution groove 4 has a conical cylinder structure.

[0042] In this embodiment, the cross-sectional area of the opening 41 of the high liquid level distribution groove 4 is 1 / 4 to 1 / 3 of the cross-sectional area of the bottom of the distribution groove.

[0043] The structure of the high liquid level distribution groove 4 in this application can fully utilize the internal space of the upper head 3, can achieve a higher liquid level, and can effectively reduce the risk of load and the difficulty of liquid level control compared with a cylindrical structure.

[0044] As shown in the drawings, Figure 1 In this embodiment, the shell-and-tube trickle reactor further comprises a liquid inlet pipe 8, which enters the upper head 3 from the middle position of the upper end of the upper head 3, is in butt joint with the opening 41, and is used for conveying reaction medium to the opening 41.

[0045] Embodiment 2

[0046] As shown in the drawings, Figure 5 and 6 The difference between this embodiment and Embodiment 1 is that the high liquid level distribution groove 4 has a conical cylinder structure that is contracted towards the center.

[0047] Embodiment 3

[0048] As shown in the drawings, Figure 7 and 8 The difference between this embodiment and Embodiment 1 is that the high liquid level distribution groove 4 comprises a first cylindrical portion 42 and a conical portion 43 arranged in sequence from bottom to top, and the opening 41 is located at the small-diameter end of the upper end of the conical portion 43.

[0049] Embodiment 4

[0050] As Figure 9 and 10 shown, the difference between this embodiment and embodiment 1 is that the high liquid level distribution tank 4 comprises a plurality of cylindrical portions arranged from bottom to top, and the inner diameter of the upper cylindrical portion is smaller than the inner diameter of the adjacent lower cylindrical portion.

[0051] As Figure 10 shown, in this embodiment, the cylindrical portion has two, including the first cylindrical portion 42 located at the lower and the second cylindrical portion 44 located at the upper.

[0052] Embodiment 5

[0053] As Figure 11 and 12 shown, the difference between this embodiment and embodiment 1 is that the upper head 3 has a hollow extension pipe 31 extending upward in the middle, the upper part of the high liquid level distribution tank 4 has an extension part 45, the extension part 45 penetrates into the hollow extension pipe 31, and the upper end of the extension part 45 has an opening 41.

[0054] The hollow extension pipe 31 corresponds to the formation of an expanded cavity, and the high liquid level distribution tank 4 extends into the hollow extension pipe 31 through the extension part 45, which can break through the limitation of the traditional upper head 3 and realize higher liquid level control (i.e. higher flow control).

[0055] As Figure 12 shown, in this embodiment, the high liquid level distribution tank 4 further comprises a first cylindrical portion 42 located at the lowermost and a transition portion 46 connecting the first cylindrical portion 42 and the extension part 45, the inner diameter of the lower end of the transition portion 46 is the same as that of the first cylindrical portion 42, and the inner diameter of the upper end of the transition portion 46 is the same as that of the extension part 45.

[0056] The above only describes the preferred embodiments of the present application, and does not limit the patent protection scope of the present application, any equivalent structural transformation, direct or indirect application in other related technical fields, are also included in the protection scope of the present application.

Claims

1. A high liquid level distribution trough of a shell-and-tube trickle bed reactor, the shell-and-tube trickle bed reactor comprising a shell, a tube sheet, a high liquid level distribution trough, and an upper head fixed to an upper end of the shell, the tube sheet being fixed to an upper portion of the shell, characterized in that, The high liquid level distribution groove is installed on the tube plate, and the upper end of the high liquid level distribution groove has an opening, the opening of the high liquid level distribution groove extends to the middle of the top of the upper head, the cross-sectional area of the opening of the high liquid level distribution groove is smaller than the cross-sectional area of the bottom of the high liquid level distribution groove, and the high liquid level distribution groove has a structure of being small at the top and large at the bottom.

2. The high liquid level distribution tray for a tubular falling film reactor according to claim 1, characterized in that The high liquid level distribution groove is a conical cylinder structure.

3. The high liquid level distribution tray for a tubular falling film reactor of claim 1, wherein, The high liquid level distribution groove is a conical cylinder structure that is contracted to the center.

4. The high liquid level distribution tray for a tubular falling film reactor of claim 1, wherein, The high liquid level distribution groove comprises a first cylinder portion and a conical portion arranged in sequence from bottom to top, and the opening is located at the small-diameter end of the upper end of the conical portion.

5. The high liquid level distribution tray for a tubular falling film reactor of claim 1, wherein, The high liquid level distribution groove comprises a plurality of cylinder portions arranged in sequence from bottom to top, and the inner diameter of the upper cylinder portion is smaller than the inner diameter of the adjacent lower cylinder portion.

6. The high liquid level distribution tray for a tubular falling film reactor according to claim 5, characterized in that The cylinder portion has two, including a first cylinder portion at the bottom and a second cylinder portion at the top.

7. The high liquid level distribution tray for a tubular falling film reactor of claim 1 wherein, The middle of the upper head has a hollow extension pipe extending upward, the upper part of the high liquid level distribution groove has an extension, the extension penetrates into the hollow extension pipe, and the upper end of the extension has the opening.

8. The high liquid level distribution tray for a tubular falling film reactor according to claim 7, characterized in that The high liquid level distribution groove further comprises a first cylinder portion at the bottom and a transition portion connecting the first cylinder portion and the extension, the inner diameter of the lower end of the transition portion is the same as that of the first cylinder portion, and the inner diameter of the upper end of the transition portion is the same as that of the extension.

9. A shell-and-tube trickle-bed reactor, characterized by The column tube type trickle reactor comprises a cylinder body, a tube plate, a high liquid level distribution groove, and an upper head fixed on the upper end of the cylinder body, the tube plate is fixed on the upper part of the cylinder body, and the high liquid level distribution groove is the high liquid level distribution groove of any one of claims 1-8.

10. The tubular trickle-bed reactor according to claim 9, characterized in that The column tube type trickle reactor further comprises a liquid inlet pipe, a trickle pipe, a reaction pipe, and a baffle, the upper end of the reaction pipe is fixed with the tube plate, the trickle pipe is arranged at the bottom of the high liquid level distribution groove, the upper end of the trickle pipe communicates with the space formed by the distribution groove, the lower end of the trickle pipe communicates with the corresponding reaction pipe, the baffle is arranged on the reaction pipe, the liquid inlet pipe enters the upper head from the middle position of the upper end of the upper head, and the liquid inlet pipe is in butt joint with the opening to transport the reaction medium to the opening.

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