Reaction kettle detection sampling device

Abstract

The utility model relates to the technical field of chemical synthesis, in particular to a reaction kettle detecting and sampling device which comprises a reaction kettle, a sleeve is arranged at the top of the reaction kettle, a sampling pipe is slidably connected in the sleeve, the sampling pipe is hollow, a liquid suction port is formed in the bottom of the sampling pipe, and a liquid outlet is formed in the top of the sampling pipe. The liquid outlet is communicated with a three-way pipe, the other two connectors of the three-way pipe are communicated with a nitrogen device and a sample collecting device, and the other connectors of the three-way pipe are provided with valves. The sampling tube is arranged at the top of the reaction kettle, so that the completeness of the side wall of the reaction kettle is ensured, the leakage of a solution in the reaction kettle caused by long-term use is avoided, the sampling at different liquid levels can be realized through the sliding connection of the sampling tube and the reaction kettle, and the accuracy of sampling analysis and detection is ensured. The reaction kettle is reasonable in design and convenient to sample, the service life of the reaction kettle is prolonged, and the accuracy of sampling analysis is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical synthesis, in particular to a reaction kettle detection sampling device. Background Art

[0002] Many processes in the chemical industry require sampling and testing in order to monitor the reaction parameters, reaction endpoints, and reaction processes. In the chemical reaction process, in order to accurately detect the progress of the reaction, it is necessary to frequently perform sampling and testing. The traditional sampling and testing method is generally to manually sample from the reactor feed port or from the reactor bottom valve, and then use the corresponding detection method to detect the sampled. Although the traditional sampling method is easy to operate, the sampling point is relatively fixed and cannot accurately and objectively reflect the various indicators of the reactor. There is also a sampling port set from the side wall of the reactor. For example, the prior art CN205157245U discloses a sampling system to achieve sampling at multiple sites in the reactor. However, for chemical reactions with concentrated sulfuric acid as the reaction raw material, it is necessary to open the installation port of the sampling system on the side wall of the reactor, which is not conducive to ensuring the integrity of the side wall of the reactor. After the reactor is used for a period of time, there is a risk of leakage, especially for chemical reactions with concentrated sulfuric acid as the reaction raw material, which increases the safety hazards in the reaction process. Utility Model Content

[0003] The purpose of the utility model is to provide a reactor detection sampling device to address the deficiencies of the prior art. The device is reasonably designed and easy to use, and can not only ensure the integrity of the side wall of the reactor, but also sample multiple sites in the reactor to improve the accuracy of sampling detection.

[0004] The utility model solves the technical problem by adopting the following technical scheme: a reaction kettle detection sampling device comprises a reaction kettle, the side wall of the kettle body of the reaction kettle is complete, a sleeve is arranged on the top of the reaction kettle, a sampling tube is slidably connected inside the sleeve, the sampling tube is hollow inside, a liquid suction port is arranged on the bottom of the sampling tube, a liquid outlet is arranged on the top of the sampling tube, the liquid outlet is communicated with a three-way pipe, the other two interfaces of the three-way pipe are communicated with a nitrogen device and a sample collection device, and the other interface of the three-way pipe is provided with a valve.

[0005] Furthermore, the liquid outlet is connected to the three-way pipe through a hose.

[0006] Furthermore, a driving device for driving the sampling tube to slide downward is arranged on the top of the sampling tube.

[0007] Furthermore, the driving device is fixedly connected to the top of the reactor through a fixed bracket. The driving device is a screw rod, which passes through a pushing block and is connected to the top of the sampling tube. The screw rod is threadedly connected to the pushing block, and the pushing block is slidably connected to the fixed bracket.

[0008] Furthermore, the liquid outlet end of the sampling tube is sleeved with a telescopic spring.

[0009] Furthermore, a sealing device is provided at the top of the sleeve.

[0010] The beneficial effects of the utility model are as follows: a reactor detection sampling device comprises a reactor, wherein the reactor body side wall of the reactor is complete, a sleeve is arranged on the top of the reactor, a sampling tube is slidably connected inside the sleeve, the sampling tube is hollow inside, a liquid suction port is arranged at the bottom of the sampling tube, a liquid outlet is arranged on the top of the sampling tube, the liquid outlet is connected with a three-way pipe, the other two interfaces of the three-way pipe are connected with a nitrogen device and a sample collection device, and the other interface of the three-way pipe is provided with a valve. The utility model is conducive to ensuring the integrity of the reactor side wall by arranging the sampling tube at the top of the reactor, avoiding leakage of the solution in the reactor caused by long-term use, and sampling of different liquid levels can be achieved by slidingly connecting the sampling tube with the reactor, thereby ensuring the accuracy of sampling analysis and detection. The utility model has reasonable design, convenient sampling, prolongs the service life of the reactor, and improves the accuracy of sampling analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Description of reference numerals:

[0013] 1——reactor, 2——sleeve, 3——sampling tube, 31——liquid suction port, 32——liquid outlet, 33——guide rail, 331——notch, 4——tee pipe, 5——sample collecting device, 6——hose, 7——driving device, 8——fixed bracket, 9——pushing block, 10——telescopic spring. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0015] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 invention can be understood according to specific circumstances.

[0017] like Figure 1 As shown, a reactor detection sampling device of the present embodiment comprises a reactor 1, the reactor body side wall of the reactor 1 is complete, a sleeve 2 is arranged on the top of the reactor 1, a sampling tube 3 is slidably connected inside the sleeve 2, the sampling tube 3 is hollow inside, a liquid suction port 31 is arranged at the bottom of the sampling tube 3, a liquid outlet 32 ​​is arranged at the top of the sampling tube 3, the liquid outlet 32 ​​is connected with a three-way pipe 4, the other two interfaces of the three-way pipe 4 are connected with a nitrogen device and a sample collecting device 5, the sample collecting device 5 comprises a sample collector and a suction device, and the other interface of the three-way pipe 4 is provided with a valve.

[0018] The working principle of the utility model is as follows: when sampling, close the valve connecting the three-way pipe 4 and the nitrogen device, open the valve connecting the three-way pipe 4 and the sample collection device 5, and under the action of the suction force of the sample collection device 5, the solution in the reactor 1 enters the sample collection device 5 along the sampling tube 3, so that the sample detection and analysis can be carried out; when taking solutions of different liquid levels, slide the sampling tube 3 upward or downward along the sleeve 2, so that the liquid suction port 31 of the sampling tube 3 is located at different liquid levels, and the solutions of different liquid levels are sampled and analyzed, which is conducive to improving the accuracy of sampling and analysis. After taking samples each time, close the valves between the three-way pipe 4 and the sample collection device 5, open the valves between the three-way pipe 4 and the nitrogen device, introduce nitrogen into the sampling tube 3 through the nitrogen device, and blow the remaining solution in the sampling tube 3 back into the reactor 1, which is conducive to ensuring the accuracy of sampling and analysis.

[0019] The liquid outlet 32 ​​is connected to the three-way pipe 4 through a hose 6. The hose 6, the sampling tube 3 and the sleeve 2 are all made of corrosion-resistant materials. The liquid outlet end of the sampling tube 3 is connected to the three-way pipe 4 through a retractable hose 6, so that when the sampling tube 3 absorbs solutions of different liquid levels, it is convenient for the sampling tube 3 to move up and down.

[0020] A driving device 7 for driving the sampling tube 3 to slide downward is provided on the top of the sampling tube 3. The driving device 7 is fixedly connected to the reactor 1 through a fixed bracket 8. The sampling tube 3 is driven to move up and down by the driving device 7. The driving device 7 can be a cylinder or a screw drive. The pushing block 9 is slidably connected to the fixed bracket 8, the pushing block 9 is fixedly connected to the top of the sampling tube 3, the screw is threadedly connected to the pushing block 9, and the output end of the screw is rotatably connected to the top of the sampling tube 3.

[0021] The liquid outlet end of the sampling tube is sleeved with a telescopic spring 10. When the sampling tube 3 needs to move upward, under the elastic force of the compressed telescopic spring 10, the telescopic spring 10 gives the sampling tube 3 an upward thrust, which helps to assist the sampling tube 3 to move upward.

[0022] A sealing device is provided on the top of the sleeve, and preferably the sealing device is a sealing ring, which is beneficial to ensure the sealing performance of the reactor.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A reaction kettle detection sampling device, characterized in that: The invention comprises a reactor (1), wherein a sleeve (2) is arranged at the top of the reactor (1), a sampling tube (3) is slidably connected inside the sleeve (2), the sampling tube (3) is hollow inside, a liquid suction port (31) is arranged at the bottom of the sampling tube (3), a liquid outlet (32) is arranged at the top of the sampling tube (3), the liquid outlet (32) is connected to a three-way pipe (4), the other two interfaces of the three-way pipe (4) are connected to a nitrogen device and a sample collection device (5), and a valve is arranged at the interface of the three-way pipe (4) connected to the nitrogen device and the sample collection device (5).

2. A reaction kettle detection sampling device according to claim 1, characterized in that: The liquid outlet (32) is connected to the three-way pipe (4) via a hose (6).

3. A reaction kettle detection sampling device according to claim 1, characterized in that: A driving device (7) for driving the sampling tube (3) to slide downward is provided at the top of the sampling tube (3).

4. A reaction kettle detection sampling device according to claim 3, characterized in that: The driving device (7) is fixedly connected to the top of the reactor (1) via a fixed bracket (8); the driving device (7) is a screw rod, the screw rod passes through a push block (9) and is connected to the top of the sampling tube (3); the screw rod is threadedly connected to the push block (9), and the push block (9) is slidably connected to the fixed bracket (8).

5. The reaction kettle detection sampling device according to claim 1, characterized in that: The liquid outlet end of the sampling tube (3) is sleeved with a telescopic spring (10).

6. A reaction kettle detection sampling device according to claim 5, characterized in that: A sealing device is provided at the top of the sleeve (2).

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