Device for cleaning p-chloroaniline diazotization reaction channel

Abstract

The utility model discloses a p-chloroaniline diazotization reaction channel cleaning device which comprises a protective box body and a micro-channel reactor, a water outlet of a flushing mechanism is communicated with a water outlet hose, a water return port of the flushing mechanism is communicated with a water return hose, and connectors are arranged on the water outlet hose and the water return hose. The water outlet hose and the water return hose are connected with an inlet pipe and an outlet pipe of the micro-channel reactor through connectors respectively, the micro-channel reactor is placed above the protective box body, and each connector comprises an outer pipe, four fan-shaped pressing plates and an adjusting disc. According to the cleaning device for the p-chlorophenylamine diazotization reaction channel, when the internal reaction channel of the micro-channel reactor is cleaned, the interior is flushed and cleaned through the flushing mechanism, the water outlet hose of the flushing mechanism is connected with the micro-channel reactor through the connector, the connector is convenient and rapid to operate, and the practicability of the device in use is improved.

Description

Technical Field

[0001] This utility model relates to the field of diazotization reaction channel cleaning technology, specifically a cleaning device for p-chlorophenylamine diazotization reaction channel. Background Technology

[0002] Diazotization is a chemical reaction in which an aromatic primary amine reacts with nitrous acid in a strong acid medium to form a diazonium salt. It is generally carried out at low temperatures, with a molar ratio of primary amine to acid of 1:2.5. A microchannel reactor is required for the reaction.

[0003] The patent publication number CN205886837U discloses a microchannel reactor, including an upper sealing plate, a channel plate, and a lower heating plate; the channel plate is provided with microchannels for liquid mixing and reaction, and the microchannels are provided with microchannel inlets and microchannel outlets; the upper sealing plate is a square plate structure, and the upper sealing plate is sealed to the upper surface of the channel plate; the interior of the upper sealing plate is a hollow cavity structure, and the upper sealing plate is provided with a circulating water inlet and a circulating water outlet.

[0004] As shown in the above technology, a microchannel reactor is required when carrying out the diazotization reaction of p-chlorophenylamine. After the reaction, the reaction channels in the microchannel reactor are left with residual reaction substances, so the channels in the microchannel reactor need to be cleaned. For this purpose, a p-chlorophenylamine diazotization reaction channel cleaning device is proposed, which can clean the reaction channels of the microchannel reactor and can be quickly connected to the microchannel reactor. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a cleaning device for the diazotization reaction channel of p-chlorophenylamine, which solves the problem that the existing p-chlorophenylamine diazotization reaction channel needs to be cleaned.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a cleaning device for the p-chlorophenylamine diazotization reaction channel includes a protective box and a microchannel reactor for carrying out the p-chlorophenylamine diazotization reaction. The protective box is equipped with a rinsing mechanism. The outlet of the rinsing mechanism is connected to an outlet hose, and the return outlet of the rinsing mechanism is connected to a return hose. Both the outlet hose and the return hose are equipped with connectors, and the outlet hose and the return hose are connected to the inlet pipe and outlet pipe of the microchannel reactor respectively through the connectors. The microchannel reactor is placed above the protective box, and the protective box is equipped with multiple clamping components for fixing the position of the microchannel reactor.

[0007] The connector includes an outer tube, four sector-shaped pressure plates and an adjustment plate. Each of the four sector-shaped pressure plates is fixedly connected to an L-shaped rod on its outer side. When the adjustment plate rotates and pushes the L-shaped rod to move, the four sector-shaped pressure plates move towards the center at the same time and are fixed to the water inlet pipe of the microchannel reactor by the outer tube.

[0008] Preferably, an inner tube is fixedly connected to the inner wall of the outer tube, and the diameter of the inner tube is smaller than the diameter of the outer tube, so that an insertion cavity is formed between the outer tube and the inner tube. The water outlet hose 6 is sleeved on the outside of the outer tube 41 and fixed by a fixing clamp.

[0009] Preferably, the end of the outer tube is fixedly connected to a ring, the four L-shaped rods are equidistantly slidably connected to the surface of the ring along the circumference, and the four fan-shaped pressure plates are all inside the ring. The adjusting plate is rotatably connected to the surface of the outer tube, and the adjusting plate has four guide grooves equidistantly opened inside, with the four L-shaped rods respectively located inside the guide grooves at corresponding positions.

[0010] Preferably, a fixing plate is fixedly connected to one side of the adjusting disc, and a T-shaped slide rod is slidably connected inside the fixing plate. A first limiting tooth block is fixedly connected to one end of the T-shaped slide rod extending below the fixing plate. A limiting spring is sleeved between the fixing plate and the first limiting tooth block, and the limiting spring is sleeved outside the T-shaped slide rod. A plurality of second limiting tooth blocks are fixedly connected at equal intervals on the surface of the ring. The position of the adjusting disc is positioned when the first limiting tooth block enters the gap between the plurality of second limiting tooth blocks.

[0011] Preferably, the clamping assembly includes two left and right sliding grooves formed on the top of the protective box, and two front and rear sliders are slidably connected to the inner surfaces of the two sliding grooves. A fixing rod is fixedly connected to the top of the slider, and a rotating plate is rotatably connected to the surface of the fixing rod.

[0012] Preferably, the top of the rotating plate is slidably connected with two guide rods, and each of the two guide rods passes through the rotating plate and extends to a pressure block at one end below it. The top of the rotating plate is threadedly connected with a lead screw, and the bottom end of the lead screw is rotatably connected to the top of the pressure block.

[0013] Beneficial effects

[0014] This invention provides a cleaning device for the diazotization reaction channel of p-chlorophenylamine. Compared with the prior art, it has the following advantages:

[0015] 1. The cleaning device for the diazotization reaction channel of p-chlorophenylamine has a return water hose connected to the return water port of the flushing mechanism. Both the outlet water hose and the return water hose are equipped with connectors, which are connected to the inlet pipe and outlet pipe of the microchannel reactor, respectively. When cleaning the internal reaction channel of the microchannel reactor, the flushing mechanism flushes water into the interior. The outlet water hose of the flushing mechanism is connected to the microchannel reactor through the connector. The connector is convenient and quick to operate, which improves the practicality of the device during use.

[0016] 2. The cleaning device for the p-chlorophenylamine diazotization reaction channel includes a clamping assembly comprising two left and right sliding grooves on the top of the protective box. The inner surfaces of the two sliding grooves are slidably connected to two front and rear sliders, and the top of the sliders are fixedly connected to a fixing rod. When cleaning the microchannel reactor, the microchannel reactor is placed on the top of the protective box and its position is fixed by the clamping assembly, thereby ensuring the stability of the microchannel reactor during cleaning and improving the reliability of the device during use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0018] Figure 2 This is a schematic diagram of the connector of this utility model;

[0019] Figure 3 This is an enlarged view of point A in this utility model;

[0020] Figure 4 This is a schematic diagram of the clamping assembly of this utility model.

[0021] In the diagram: 1. Protective housing; 2. Microchannel reactor; 3. Flushing mechanism; 4. Connector; 41. Outer tube; 42. Inner tube; 43. Ring; 44. L-shaped rod; 45. Fan-shaped pressure plate; 46. Adjusting plate; 47. Guide groove; 48. Fixing plate; 49. T-shaped slide bar; 410. First limiting tooth block; 411. Limiting spring; 412. Second limiting tooth block; 5. Pressing assembly; 51. Slide groove; 52. Slider; 53. Fixing rod; 54. Rotating plate; 55. Guide rod; 56. Pressure block; 57. Lead screw; 6. Outlet hose; 7. Return hose. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 The cleaning device for the p-chlorophenylamine diazotization reaction channel offers two technical solutions:

[0024] The first embodiment includes a protective enclosure 1 and a microchannel reactor 2 for carrying out the diazotization reaction of p-chlorobenzeneamine. The protective enclosure 1 is equipped with a rinsing mechanism 3. The outlet of the rinsing mechanism 3 is connected to an outlet hose 6, and the return water outlet of the rinsing mechanism 3 is connected to a return water hose 7. The rinsing mechanism 3 consists of a storage tank, a pressure pump, and a return water tank. The inlet of the pressure pump is connected to the storage tank, and the outlet of the pressure pump is connected to the outlet hose. The inlet of the return water tank is connected to the return water hose. Both the outlet hose 6 and the return water hose 7 are equipped with connectors 4, and the outlet hose 6 and the return water hose 7 are connected to the inlet pipe and the outlet pipe of the microchannel reactor 2 respectively through the connectors 4.

[0025] Connector 4 includes an outer tube 41, four sector-shaped pressure plates 45, and an adjusting plate 46. L-shaped rods 44 are fixedly connected to the outer sides of each of the four sector-shaped pressure plates 45. When the adjusting plate 46 rotates and pushes the L-shaped rods 44, the four sector-shaped pressure plates 45 simultaneously move towards the center to fix the outer tube 41 to the inlet pipe of the microchannel reactor 2. An inner tube 42 is fixedly connected to the inner wall of the outer tube 41. The diameter of the inner tube 42 is smaller than the diameter of the outer tube 41, thus forming an insertion cavity between the outer tube 41 and the inner tube 42. The outlet hose 6 is sleeved on the outside of the outer tube 41 and fixed by a fixing clamp. A circular ring 43 is fixedly connected to the end of the outer tube 41. The four L-shaped rods 44 are equidistantly slidably connected to the surface of the circular ring 43 along the circumference, with the sliding direction being radial to the circular ring 43. All four sector-shaped pressure plates 45 are located within the circular ring 43. The adjustment plate 46 is rotatably connected to the surface of the outer tube 41, and four guide grooves 47 are equally spaced inside the adjustment plate 46. Four L-shaped rods 44 are respectively located inside the guide grooves 47 at corresponding positions. A fixing plate 48 is fixedly connected to one side of the adjustment plate 46. A T-shaped slide rod 49 is slidably connected inside the fixing plate 48. A first limiting tooth block 410 is fixedly connected to one end of the T-shaped slide rod 49 extending below the fixing plate 48. A limiting spring 411 is sleeved between the fixing plate 48 and the first limiting tooth block 410, and the limiting spring 411 is sleeved on the outside of the T-shaped slide rod 49. Multiple second limiting tooth blocks 412 are fixedly connected at equal distances on the surface of the ring 43. When the first limiting tooth block 410 enters the gap between the multiple second limiting tooth blocks 412, the position of the adjustment plate 46 is positioned.

[0026] When cleaning the internal reaction channels of the microchannel reactor 2, water is flushed into the interior through the flushing mechanism 3. The water outlet hose 6 of the flushing mechanism 3 is connected to the microchannel reactor 2 through the connector 4. The connector 2 is easy and quick to operate, which improves the practicality of the device.

[0027] The second embodiment differs from the first embodiment in that the microchannel reactor 2 is placed above the protective housing 1, and the protective housing 1 is provided with multiple clamping components 5 for fixing the position of the microchannel reactor 2. The clamping components 5 include two left and right sliding grooves 51 opened on the top of the protective housing 1. The inner surfaces of the two sliding grooves 51 are slidably connected to two front and rear sliders 52. The top of the sliders 52 is fixedly connected to a fixing rod 53. The surface of the fixing rod 53 is rotatably connected to a rotating plate 54, for example, through a bearing. The top of the rotating plate 54 is slidably connected to two left and right guide rods 55. The two guide rods 55 pass through the rotating plate 54 and extend to one end below it, and each end is fixedly connected to a pressure block 56. The top of the rotating plate 54 is threadedly connected to a lead screw 57, and the bottom end of the lead screw 57 is rotatably connected to the top of the pressure block 56, for example, through a bearing.

[0028] When cleaning the microchannel reactor 2, the microchannel reactor 2 is placed on top of the protective box 1 and fixed in position by the clamping component 5, thereby ensuring the stability of the microchannel reactor 2 during cleaning and improving the reliability of the device during use.

[0029] In use, place the microchannel reactor 2 on top of the protective housing 1, move the clamping assembly 5 so that it is close to the side of the microchannel reactor 2, rotate the rotating plate 54 so that the pressure block 56 is aligned with the appropriate position above the microchannel reactor 2, rotate the screw 57 so that the pressure block 56 moves downward, thereby clamping the microchannel reactor 2 through the pressure block 56. Then, align the water inlet pipe of the microchannel reactor 2 with the insertion cavity and insert it. After insertion, the inner tube 42 enters the interior of the water inlet pipe of the microchannel reactor 2. Then, pull the T-shaped sliding rod 49 so that the first limiting tooth block 410 does not insert into the two adjacent second limiting tooth blocks 4. The gap between 12 is filled while the adjusting plate 46 is rotated. Through the cooperation of the guide groove 47 and the L-shaped rod 44, the four fan-shaped pressure plates 45 move closer to the center and clamp to the outside of the water inlet pipe of the microchannel reactor 2. When the adjusting plate 46 rotates, it drives the first limiting tooth block 410 to rotate. The first limiting tooth block 410 rotates and contacts the second limiting tooth block 412, thereby causing the first limiting tooth block 410 to move upward. After the adjusting plate 46 stops rotating, under the action of the limiting spring 411, the first limiting tooth block 410 enters the gap between the multiple second limiting tooth blocks 412, thereby limiting the position of the adjusting plate 46 after it stops.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cleaning device for a p-chlorophenylamine diazotization reaction channel, comprising a protective enclosure (1) and a microchannel reactor (2) for carrying out the p-chlorophenylamine diazotization reaction, characterized in that: The protective housing (1) is equipped with a flushing mechanism (3). The outlet of the flushing mechanism (3) is connected to a water outlet hose (6), and the return water outlet of the flushing mechanism (3) is connected to a return water hose (7). Both the water outlet hose (6) and the return water hose (7) are equipped with connectors (4). The water outlet hose (6) and the return water hose (7) are connected to the inlet pipe and outlet pipe of the microchannel reactor (2) respectively through the connectors (4). The microchannel reactor (2) is placed above the protective housing (1), and the protective housing (1) is equipped with multiple clamping components (5) for fixing the position of the microchannel reactor (2). The connector (4) includes an outer tube (41), four fan-shaped pressure plates (45) and an adjustment plate (46). An L-shaped rod (44) is fixedly connected to the outer side of each of the four fan-shaped pressure plates (45). When the adjustment plate (46) rotates and pushes the L-shaped rod (44) to move, the four fan-shaped pressure plates (45) move closer to the center at the same time to fix the outer tube (41) to the water inlet pipe of the microchannel reactor (2).

2. The cleaning device for the diazotization reaction channel of p-chlorophenylamine according to claim 1, characterized in that: An inner tube (42) is fixedly connected to the inner wall of the outer tube (41). The diameter of the inner tube (42) is smaller than the diameter of the outer tube (41), so an insertion cavity is formed between the outer tube (41) and the inner tube (42). The water outlet hose (6) is sleeved on the outside of the outer tube (41) and fixed by a fixing clamp.

3. The cleaning device for the diazotization reaction channel of p-chlorophenylamine according to claim 1, characterized in that: The end of the outer tube (41) is fixedly connected to a ring (43). The four L-shaped rods (44) are equidistantly connected to the surface of the ring (43) along the circumference. The four fan-shaped pressure plates (45) are all inside the ring (43). The adjusting plate (46) is rotatably connected to the surface of the outer tube (41). The adjusting plate (46) has four guide grooves (47) equidistantly opened inside. The four L-shaped rods (44) are respectively located inside the guide grooves (47) at corresponding positions.

4. The cleaning device for the diazotization reaction channel of p-chlorophenylamine according to claim 3, characterized in that: A fixing plate (48) is fixedly connected to one side of the adjusting disc (46). A T-shaped slide rod (49) is slidably connected inside the fixing plate (48). A first limiting tooth block (410) is fixedly connected to one end of the T-shaped slide rod (49) extending below the fixing plate (48). A limiting spring (411) is sleeved between the fixing plate (48) and the first limiting tooth block (410), and the limiting spring (411) is sleeved outside the T-shaped slide rod (49). A plurality of second limiting tooth blocks (412) are fixedly connected at equal intervals on the surface of the ring (43). The position of the adjusting disc (46) is positioned when the first limiting tooth block (410) enters the gap between the plurality of second limiting tooth blocks (412).

5. The cleaning device for the diazotization reaction channel of p-chlorophenylamine according to claim 1, characterized in that: The clamping assembly (5) includes two left and right sliding grooves (51) on the top of the protective box (1). The inner surfaces of the two sliding grooves (51) are slidably connected to two front and rear sliders (52). The top of the sliders (52) is fixedly connected to a fixing rod (53), and the surface of the fixing rod (53) is rotatably connected to a rotating plate (54).

6. The cleaning device for the diazotization reaction channel of p-chlorophenylamine according to claim 5, characterized in that: The top of the rotating plate (54) is slidably connected to two guide rods (55), and the two guide rods (55) pass through the rotating plate (54) and extend to one end below it, and are fixedly connected to a pressure block (56). The top of the rotating plate (54) is threadedly connected to a lead screw (57), and the bottom end of the lead screw (57) is rotatably connected to the top of the pressure block (56).

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