Continuous pipe type low-temperature gas-liquid multi-component mixing device

Abstract

The utility model discloses a continuous tubular low-temperature gas-liquid multi-component mixing device which comprises a tubular reactor, the tubular reactor is respectively connected with a gas cylinder and a liquid storage tank through a gas cylinder guide pipe and a liquid guide pipe, one end of the tubular reactor in the length direction is communicated with a centrifugal pump guide pipe, the centrifugal pump guide pipe is connected with a centrifugal pump, and the liquid storage tank is connected with the centrifugal pump. The inlet end of the centrifugal pump is connected with a heat exchanger outlet guide pipe, the heat exchanger outlet guide pipe is connected with the outlet end of the heat exchanger, the inlet end of the heat exchanger is connected with a heat exchanger inlet guide pipe, the heat exchanger inlet guide pipe is communicated with the end, away from the centrifugal pump guide pipe, of the tubular reactor, and a stirring shaft is arranged in the middle of the tubular reactor. The stirring shaft is connected with a power device, a spiral stirring blade is mounted on the stirring shaft, and the technical problems that in the prior art, as the ventilation time is prolonged, the temperature of mixed liquid in the kettle is too high, and crystals are separated out before gas is not introduced to the end point, so that a pipeline is blocked, and continuous feeding cannot be realized are solved.

Description

Technical Field

[0001] The utility model belongs to the field of chemical machinery, and in particular relates to a continuous tube type low-temperature gas-liquid multi-component mixing device. Background Art

[0002] At present, the aeration reaction process is mainly carried out in a kettle reactor, which has a long aeration time. As the aeration time increases, the temperature of the mixed liquid in the kettle is too high, resulting in crystal precipitation before the gas reaches the end point, thereby blocking the pipeline and failing to achieve continuous feeding. Therefore, how to effectively control the temperature inside the reactor to make the reaction more sufficient is an urgent problem that technicians in this field need to solve. Utility Model Content

[0003] The utility model aims to provide a continuous tube type low-temperature gas-liquid multi-component mixing device to solve the technical problem in the prior art that as the ventilation time increases, the temperature of the mixed liquid in the kettle is too high, resulting in crystal precipitation before the gas reaches the end point, thereby blocking the pipeline and failing to achieve continuous feeding.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A continuous tubular low-temperature gas-liquid multi-component mixing device, characterized in that it comprises: a tubular reactor, wherein the tubular reactor is connected to a gas cylinder and a liquid storage tank through a gas cylinder conduit and a liquid conduit respectively, one end of the tubular reactor in the length direction is connected to a centrifugal pump conduit, the centrifugal pump conduit is connected to the centrifugal pump, the inlet end of the centrifugal pump is connected to a heat exchanger outlet conduit, the heat exchanger outlet conduit is connected to the outlet end of the heat exchanger, the inlet end of the heat exchanger is connected to a heat exchanger inlet conduit, the heat exchanger inlet conduit is connected to one end of the tubular reactor away from the centrifugal pump conduit, a stirring shaft is arranged in the middle of the tubular reactor, the stirring shaft is connected to a power device, and a spiral stirring blade is installed on the stirring shaft.

[0006] The utility model discloses a continuous tubular low-temperature gas-liquid multi-component mixing device. An online infrared density meter is arranged on the tubular reactor.

[0007] The utility model discloses a continuous tubular low-temperature gas-liquid multi-component mixing device. Both ends of the tubular reactor are provided with pressure relief baffles.

[0008] The utility model discloses a continuous tube type low-temperature gas-liquid multi-component mixing device. The heat exchanger is an external low-temperature straight tube heat exchanger. A plurality of channels are arranged in the external low-temperature straight tube heat exchanger. Circulation coils are arranged in the channels.

[0009] The utility model discloses a continuous tubular low-temperature gas-liquid multi-component mixing device. Both ends of the tubular reactor in the length direction are respectively provided with a front-end thermometer and a rear-end thermometer.

[0010] The utility model discloses a continuous tube type low-temperature gas-liquid multi-component mixing device. The gas cylinder and the liquid storage tank are respectively provided with a flow meter and a flow meter.

[0011] The utility model discloses a continuous tube type low-temperature gas-liquid multi-component mixing device. The gas cylinders and liquid storage tanks are respectively connected in parallel in one or more groups.

[0012] The beneficial effects of the utility model are as follows: a continuous tubular low-temperature gas-liquid multi-component mixing device is proposed, wherein the feed liquid cooled by an external heat exchanger is pumped into a tubular reactor for a circulation reaction by a centrifugal pump; a stirring device is provided to fully mix the system feed liquid for reaction; thermometers at both ends are provided to monitor the system reaction temperature in real time to prevent the system from overheating and premature precipitation of crystals to block the pipeline; an infrared density meter is provided to monitor the reaction endpoint in real time through the system density. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0014] Figure 1 It is a schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0016] like Figure 1As shown, a continuous tubular low-temperature gas-liquid multi-component mixing device comprises: a tubular reactor 9, wherein the tubular reactor 9 is connected to a gas cylinder 1 and a liquid storage tank 5 through a gas cylinder conduit 4 and a liquid conduit 7, respectively; a centrifugal pump conduit 19 is connected to one end of the tubular reactor 9 in the length direction; the centrifugal pump conduit 19 is connected to a centrifugal pump 18; a heat exchanger outlet conduit 17 is connected to the inlet end of the centrifugal pump 18; the heat exchanger outlet conduit 17 is connected to the outlet end of a heat exchanger 16; a heat exchanger inlet conduit 15 is connected to the inlet end of the heat exchanger 16; the heat exchanger inlet conduit 15 is connected to one end of the tubular reactor 9 away from the centrifugal pump conduit 19; a stirring shaft 11 is arranged in the middle of the tubular reactor 9; the stirring shaft 11 is connected to a power device; a spiral stirring blade 10 is installed on the stirring shaft 11.

[0017] The outlet end of the centrifugal pump conduit 19 is close to the outlet ends of the gas cylinder conduit 4 and the liquid conduit 7, so that the high-temperature liquid at the rear end is cooled and then circulated for reaction.

[0018] As a preferred embodiment, the tubular reactor 9 is provided with an online infrared densitometer 12, which can monitor the reaction endpoint in real time through the system density.

[0019] As a preferred embodiment, pressure relief baffles 8 are provided at both ends of the tubular reactor 9 to prevent local pressurization of the reaction.

[0020] As a preferred embodiment, the heat exchanger 16 is an external low-temperature straight tube heat exchanger, which has multiple channels inside. The channels are equipped with circulating coils, which can quickly cool down and then enter the tubular reactor to achieve continuous feeding.

[0021] As a preferred embodiment, the tubular reactor 9 is provided with a front-end thermometer 14 and a rear-end thermometer 13 at both ends in the length direction, respectively, which can monitor the reaction temperature of the system in real time to prevent the system from overheating and premature precipitation of crystals to block the pipeline.

[0022] As a preferred embodiment, the gas cylinder 1 and the liquid storage tank 5 are respectively provided with a flow meter 3 and a flow meter 6, and the gas cylinder 1 is provided with a pressure gauge 2, which can be introduced into the tubular reactor in proportion and can monitor the remaining amount in the gas cylinder in real time.

[0023] As a preferred embodiment, the gas cylinder 1 and the liquid storage tank 5 are respectively connected in parallel with one or more groups, and various reaction raw materials and control components can be introduced as needed.

[0024] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0026] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A continuous tube type low temperature gas-liquid multi-component mixing device, characterized in that: include: A tubular reactor (9), wherein the tubular reactor (9) is connected to a gas cylinder (1) and a liquid storage tank (5) via a gas cylinder conduit (4) and a liquid conduit (7) respectively; one end of the tubular reactor (9) in the longitudinal direction is connected to a centrifugal pump conduit (19); the centrifugal pump conduit (19) is connected to a centrifugal pump (18); the inlet end of the centrifugal pump (18) is connected to a heat exchanger outlet conduit (17); the heat exchanger outlet conduit (17) is connected to the outlet end of a heat exchanger (16); the inlet end of the heat exchanger (16) is connected to a heat exchanger inlet conduit (15); the heat exchanger inlet conduit (15) is connected to one end of the tubular reactor (9) away from the centrifugal pump conduit (19); a stirring shaft (11) is provided in the middle of the tubular reactor (9); the stirring shaft (11) is connected to a power device; a spiral stirring blade (10) is mounted on the stirring shaft (11).

2. A continuous tube type low temperature gas-liquid multi-component mixing device according to claim 1, characterized in that: The tubular reactor (9) is provided with an online infrared densitometer (12).

3. A continuous tube type low temperature gas-liquid multi-component mixing device according to claim 1, characterized in that: Pressure relief baffles (8) are provided at both ends of the tubular reactor (9).

4. A continuous tube type low temperature gas-liquid multi-component mixing device according to claim 1, characterized in that: The heat exchanger (16) is an external low-temperature straight tube heat exchanger, wherein a plurality of channels are provided in the external low-temperature straight tube heat exchanger, and a circulation coil is provided in the channels.

5. A continuous tube type low temperature gas-liquid multi-component mixing device according to claim 1, characterized in that: A front end thermometer (14) and a rear end thermometer (13) are respectively provided at both ends of the length direction of the tubular reactor (9).

6. A continuous tube type low temperature gas-liquid multi-component mixing device according to claim 5, characterized in that: The gas cylinder (1) and the liquid storage tank (5) are provided with a flow meter (3) and a flow meter (6) respectively.

7. A continuous tube type low temperature gas-liquid multi-component mixing device according to claim 6, characterized in that: The gas cylinders (1) and the liquid storage tanks (5) are respectively connected in parallel in one or more groups.

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