High-temperature online sampling device

Abstract

The utility model relates to a high-temperature on-line sampling device which comprises a reaction kettle, a fixing frame is fixedly installed at the bottom end of one side of the reaction kettle, one end of a sampling pipe is fixedly installed at the bottom end of one side, close to the reaction kettle, of the fixing frame, and the other end of the sampling pipe is fixedly connected with the top end of one side, away from the reaction kettle, of the fixing frame. The bottom end of the sampling pipe is communicated with the inner bottom end of the reaction kettle, threads are arranged at the top end of the sampling pipe, a sealing end cover is screwed to the top end of the sampling pipe, a first connector and a second connector are arranged at the top of the sealing end cover at intervals, and the bottom ends of the first connector and the second connector penetrate through the sealing end cover to be communicated with the interior of the sampling pipe; the top end of the first connector is communicated with one end of a gas inlet pipe, the other end of the gas inlet pipe is communicated with a nitrogen steel cylinder, the top end of the second connector is communicated with one end of a detection pipe, the bottom end of the second connector is communicated with one end of a straight pipe, and an electromagnetic valve is arranged at the bottom end of the sampling pipe. Through the structure, materials are greatly saved, and real-time detection can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, and in particular to a high-temperature online sampling device. Background Technology

[0002] A reaction vessel is a container used to realize chemical reactions. It is widely used in many industries such as chemical, pharmaceutical, food, and environmental protection. Its main function is to control the process of chemical reactions by providing specific conditions such as temperature, pressure, and stirring, so as to ensure that the reaction is carried out efficiently and safely.

[0003] Currently, the discharge port of the reactor is too large, making it difficult to control the fluid volume of the material and easily causing material waste. Therefore, it is necessary to design an additional high-temperature online sampling device.

[0004] Traditional valve electronic control systems are energy-intensive, continuously dependent on grid power, and lack passive energy recovery mechanisms; they are also inefficient in operation and maintenance, relying on manual inspections and unable to remotely monitor valve status. Utility Model Content

[0005] The purpose of this invention is to provide a high-temperature online sampling device to solve the problems existing in the prior art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A high-temperature online sampling device includes a reaction vessel. A fixing frame is fixedly installed on one bottom side of the reaction vessel. One end of a sampling tube is fixedly installed on the bottom side of the fixing frame near the reaction vessel. The other end of the sampling tube is fixedly connected to the top side of the fixing frame away from the reaction vessel. The bottom end of the sampling tube communicates with the inner bottom end of the reaction vessel. The top end of the sampling tube is threaded and has a threaded sealing cap. A first connector and a second connector are spaced apart on the top of the sealing cap. The bottom ends of the first connector and the second connector pass through the sealing cap and communicate with the interior of the sampling tube. The top end of the first connector is connected to one end of an air inlet pipe. The other end of the air inlet pipe is connected to a nitrogen cylinder. The nitrogen cylinder is equipped with a pressure stabilizing mechanism. The top end of the second connector is connected to one end of a detection tube. The other end of the detection tube is connected to the liquid inlet of a detection device. The bottom end of the second connector is connected to one end of a straight tube. The straight tube is completely inside the sampling tube. A solenoid valve is installed at the bottom end of the sampling tube. The sampling tube and the detection tube are externally equipped with heat tracing and insulation.

[0008] By adopting the above technical solution, when the solenoid valve is opened, the material at the bottom of the reactor will enter the sampling tube under atmospheric pressure. Then, the solenoid valve is closed, and the sample liquid inside the sampling tube is sent into the detection tube through the second connector through pressurized nitrogen and the air inlet pipe. Finally, it enters the detection device for detection. The above structure greatly saves materials and can detect in real time.

[0009] In a further embodiment, a temperature detection sensor is provided at the inner top of the sampling tube.

[0010] The above technical solution is used to obtain the temperature of the material inside the reactor when it enters the sampling tube.

[0011] In a further embodiment, a manual needle valve is provided at one end of the detection tube near the second connector.

[0012] By adopting the above technical solution, after closing the manual needle valve, opening the solenoid valve and injecting pressurized nitrogen into the sampling tube can send the unused sample inside the sampling tube back into the reactor, avoiding interference from the sample in the next sampling.

[0013] In a further embodiment, a temperature detector is fixedly installed at the inner top of the sampling tube.

[0014] The above technical solution is used to determine whether nitrogen has completely drained the sample from the sampling tube.

[0015] In a further embodiment, a sealing ring is snapped onto the inner bottom of the sealing end cap.

[0016] In a further embodiment, the inner wall of the sampling tube is provided with an anti-corrosion coating.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. When the solenoid valve is opened, the material at the bottom of the reactor enters the sampling tube under the pressure inside the reactor. Then the solenoid valve is closed, and the sample liquid inside the sampling tube is sent into the detection tube through the second connector through pressurized nitrogen and the gas inlet pipe. Finally, it enters the detection device for detection. The above structure greatly saves materials and can detect the effect in real time. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram illustrating the connection structure of the actual sampling tube.

[0021] In the diagram, 1. Reactor; 2. Fixture; 3. Sampling tube; 4. First connector; 5. Second connector; 6. Gas inlet pipe; 7. Nitrogen cylinder; 8. Detection tube; 9. Detection device; 10. Solenoid valve; 11. Manual needle valve; 12. Sealing end cap. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0024] Example 1:

[0025] like Figures 1-2As shown, a high-temperature online sampling device includes a reaction vessel 1. A fixing frame 2 is fixedly installed on the bottom side of one side of the reaction vessel 1. One end of a sampling tube 3 is fixedly installed on the bottom side of the fixing frame 2 near the reaction vessel 1. The other end of the sampling tube 3 is fixedly connected to the top side of the fixing frame 2 away from the reaction vessel 1. The bottom end of the sampling tube 3 communicates with the inner bottom end of the reaction vessel 1. The top end of the sampling tube 3 is threaded and has a threaded sealing end cap 12. The top of the sealing end cap 12 is provided with a first connector 4 and a second connector 5 spaced apart. The bottom ends of the first connector 4 and the second connector 5 both pass through the sealing end cap 12 and communicate with the interior of the sampling tube 3. The top end of the first connector 4 is connected to one end of an air inlet pipe 6. The other end of the air inlet pipe 6 is connected to a nitrogen cylinder 7. The nitrogen cylinder 7 is provided with a pressure stabilizing mechanism, which can be a pressure reducing valve or a pressure regulating valve, etc. The pressure stabilizing mechanism is used to control the air inlet pressure of the air inlet pipe 6. The top of the second connector 5 is connected to one end of the detection tube 8, and the other end of the detection tube 8 is connected to the inlet of the detection device 9. The bottom of the second connector 5 is connected to one end of the straight tube, which is completely inside the sampling tube 3. The bottom of the sampling tube 3 is equipped with a solenoid valve 10. The sampling tube 3 and the detection tube 8 are provided with heat tracing and insulation. The heat tracing and insulation can be electric heating, steam heating, or heat medium heating, etc. The heat tracing and insulation temperature is controlled by a temperature controller. The bottom of the second connector 5 is connected to one end of the straight tube, which is completely inside the sampling tube 3. The bottom of the sampling tube 3 is equipped with a solenoid valve 10. A temperature detection sensor is installed at the top of the inner side of the sampling tube 3. A manual needle valve 11 is installed at the end of the detection tube 8 near the second connector 5. A temperature detector is fixedly installed at the top of the inner side of the sampling tube 3. A sealing ring is snapped into the bottom of the sealing end cap 12. The inner wall of the sampling tube 3 is provided with an anti-corrosion coating.

[0026] Specific implementation process: When sampling the material in reactor 1, the solenoid valve 10 needs to be opened manually. Under atmospheric pressure, the material flows from reactor 1 into sampling tube 3. Then, the solenoid valve 10 is closed, and pressurized nitrogen is injected into sampling tube 3 through nitrogen cylinder 7. The sample will then be discharged from sampling tube 3 into detection device 9 under pressure. To maintain the temperature of the sampled material, the sampling tube and detection tube are equipped with external heat tracing and insulation to keep the sampled material at a high temperature when entering the detection device, preventing the material viscosity from being too high or solidification. After a suitable amount of sample is extracted, the manual needle valve 11 is closed, the solenoid valve 10 is opened, and pressurized nitrogen continues to be injected into sampling tube 3, so that the remaining sample in sampling tube 3 flows back into reactor 1. This can greatly save materials and reduce experimental costs.

[0027] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0028] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A high-temperature online sampling device, characterized in that: The system includes a reactor (1), a mounting bracket (2) fixedly installed on one bottom side of the reactor (1), a sampling tube (3) fixedly installed on one bottom side of the mounting bracket (2) near the reactor (1), the other end of the sampling tube (3) fixedly connected to the top end of the mounting bracket (2) away from the reactor (1), the bottom end of the sampling tube (3) communicating with the inner bottom end of the reactor (1), the top end of the sampling tube (3) being threaded, and the top end of the sampling tube (3) being provided with a threaded sealing end cap (12), the top of the sealing end cap (12) being provided with a first connector (4) and a second connector (5) spaced apart, the first connector (4) and the second connector (5) being... The bottom ends of the first connector (4) are connected to the inside of the sampling tube (3) through the sealing end cap (12). The top end of the first connector (4) is connected to one end of the air inlet pipe (6), and the other end of the air inlet pipe (6) is connected to the nitrogen cylinder (7). The nitrogen cylinder (7) is equipped with a pressure stabilizing mechanism. The top end of the second connector (5) is connected to one end of the detection tube (8), and the other end of the detection tube (8) is connected to the liquid inlet of the detection device (9). The bottom end of the second connector (5) is connected to one end of the straight pipe. The straight pipe is completely located inside the sampling tube (3), and the bottom end of the sampling tube (3) is equipped with a solenoid valve (10). The sampling tube (3) and the detection tube (8) are provided with heat tracing and insulation.

2. The high-temperature online sampling device according to claim 1, characterized in that: A temperature detection sensor is provided at the top inner part of the sampling tube (3).

3. The high-temperature online sampling device according to claim 1, characterized in that: A manual needle valve (11) is provided at one end of the detection tube (8) near the second connector (5).

4. The high-temperature online sampling device according to claim 1, characterized in that: A temperature detector is fixedly installed at the inner top of the sampling tube (3).

5. The high-temperature online sampling device according to claim 1, characterized in that: A sealing ring is snapped into the inner bottom of the sealing end cap (12).

6. The high-temperature online sampling device according to claim 1, characterized in that: The inner wall of the sampling tube (3) is provided with an anti-corrosion coating.

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