Concentration detection equipment for ethanol rectifying tower

Abstract

The utility model relates to concentration detection equipment for an ethanol rectifying tower, which comprises a detector body and a fixing plate, the front end of the detector body is provided with a detection probe rod through a connecting assembly, and the fixing plate is provided with a sealing assembly; the sealing assembly comprises a rod groove formed in the middle of the fixing plate, fixing pipes are symmetrically arranged on the two sides of the rod groove, a sealing disc is arranged on the fixing pipes in a sliding mode, guide rods are fixedly connected to the two sides of the sealing disc, telescopic sliding rods are arranged in the fixing pipes in a sliding mode, and the ends, protruding out of the fixing pipes, of the sliding rods are fixedly connected with the guide rods. A sealing groove matched with the sealing disc is formed in the front end of the rod groove, a screw groove matched with the connecting assembly is formed in the tail end of the rod groove, and the detection probe rod is inserted into the rod groove in a penetrating mode. The rod groove can be automatically opened and closed, the concentration of ethanol in the rectifying tower can be conveniently detected, the operation step of manual sealing is omitted, and the device is convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of ethanol distillation tower technology, and specifically relates to an ethanol distillation tower concentration detection device. Background Technology

[0002] Ethanol distillation columns are mainly used to purify ethanol in a mixture of ethanol and water to a higher concentration. The principle is to use the difference in boiling points between ethanol and water to achieve separation and purification through multiple partial vaporization and partial condensation processes. In order to ensure product quality, it is necessary to monitor the ethanol concentration at various locations in the column in real time during the distillation process to adjust and control operating parameters such as feed flow rate and temperature.

[0003] The publication number CN212904787U provides an ethanol distillation column concentration detection device, including a storage tank and a transition tank. The output pipeline includes a first pipeline, a second pipeline, and an inclined tube. One end of the first pipeline is connected to the gas outlet of the distillation column, and the other end of the first pipeline is connected to the storage tank through the inclined tube.

[0004] The aforementioned detection equipment facilitates the collection of condensed liquid ethanol in the output pipeline, preventing residual ethanol from being discharged and collected. However, when disassembling and assembling the detection probe, the probe slot needs to be manually opened or closed, which is not convenient for automatic sealing of the inside of the distillation column. Furthermore, due to the height of the column and the different ethanol concentrations at different heights, it is necessary to detect ethanol at different heights. The current detection equipment is not convenient for quick disassembly and assembly of the detection probe, and the wires of the detector body are prone to tangling during disassembly and assembly. Utility Model Content

[0005] To address the problems of existing technologies, this utility model proposes an ethanol distillation column concentration detection device. The objective of this utility model and the solution to its technical problems are achieved through the following technical solution. The ethanol distillation column concentration detection device proposed by this utility model includes a detector body and a fixing plate. A detection probe is mounted on the front end of the detector body via a connecting assembly. A sealing assembly is provided on the fixing plate. The sealing assembly includes a rod groove in the middle of the fixing plate, with fixing tubes symmetrically arranged on both sides of the rod groove. A sealing disc is slidably mounted on the fixing tube, and guide rods are fixedly connected to both sides of the sealing disc. A retractable sliding rod is slidably mounted inside the fixing tube, protruding from the end of the fixing tube and fixedly connected to the guide rod. A sealing groove matching the sealing disc is opened at the front end of the rod groove, and a threaded groove cooperating with the connecting assembly is opened at the end. The rod groove is used to insert the detection probe.

[0006] Preferably, the diameter of the detection probe is matched with the inner diameter of the probe groove, and the diameters of the screw groove and the sealing groove are larger than the diameter of the probe groove.

[0007] Preferably, the end of the sealing disc is provided with a boss, which engages with the sealing groove to form a seal.

[0008] Preferably, a spring is fitted on the slide rod, a washer is provided at the end of the slide rod, a retaining ring is provided inside the fixing tube, the front end of the spring abuts against the retaining ring, and the other end abuts against the washer.

[0009] Preferably, the connecting assembly includes a turntable and a rotating sleeve. The rotating sleeve is fixedly connected to the detection probe, and the turntable is rotatably mounted on the rotating sleeve. The turntable and the rotating sleeve are axially limited. The front end of the turntable is provided with a threaded sleeve that mates with a threaded groove, and the end abuts against the detector body.

[0010] Preferably, a rotating shaft is fixedly connected to the rotating sleeve, and an annular guide rail is provided on the surface of the detector body that abuts against the turntable. The inner wall of the turntable is provided with a groove that matches the rotating shaft. The groove and the rotating shaft cooperate to realize the axial positioning of the turntable and the rotating sleeve, and at the same time provide a guiding sliding effect for the turntable to facilitate its rotation. Furthermore, a sliding groove that matches the guide rail is provided on the side wall at the end of the turntable, which can reduce the friction between the end of the turntable and the detector body and improve the service life of the detector body.

[0011] Preferably, the outer wall at the end of the turntable is provided with friction texture to facilitate the rotation of the turntable by the staff.

[0012] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0013] 1) The detection device proposed in this utility model, by setting a sealing component, can push open the sealing plate when the detection probe is inserted into the rod groove, so that the sealing plate moves with the end of the detection probe and automatically opens the rod groove, which facilitates the detection of ethanol concentration inside the distillation column. When the detection probe is removed, the sealing plate is reset under the action of the spring and engages with the sealing groove, automatically closing the rod groove and achieving sealing inside the distillation column, eliminating the manual sealing operation steps and making it convenient to use.

[0014] 2) The detection device proposed in this utility model, by setting a connecting component, axially limits the turntable and the detection probe, and the turntable and the rotating sleeve are rotatably connected. The turntable drives the screw sleeve to rotate and connect with the screw groove, which facilitates the quick installation and disassembly of the detector body and the replacement of the position of the detection probe, so that it can easily detect ethanol at different heights in the distillation column. At the same time, it can keep the detector body in a stationary state and avoid the wire of the detector body from getting tangled.

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, preferred embodiments are given below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an ethanol distillation column concentration detection device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the sealing component in this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the connecting component in this utility model.

[0019] In the diagram: 1. Detector body; 2. Detection probe; 3. Sealing assembly; 4. Connecting assembly; 5. Fixing plate; 6. Fixing tube; 7. Rod groove; 8. Threaded groove; 9. Sealing groove; 10. Sealing disc; 11. Guide rod; 12. Slide rod; 13. Spring; 14. Rotating shaft; 15. Turntable; 16. Threaded sleeve. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and preferred embodiments. In this embodiment, the "front end" refers to... Figure 1 The left end of the direction shown is opposite to the direction of the "front end".

[0021] Please see Figure 1 An ethanol distillation column concentration detection device includes a detector body 1 and a fixing plate 5. The front end of the detector body 1 is equipped with a detection probe 2 via a connecting component 4. The detection probe 2 is used to detect the concentration of gaseous ethanol, which is displayed on a display screen in the detector body 1. The fixing plate 5 is provided with a sealing component 3, and the fixing plate 5 is provided with screw holes around its perimeter. The fixing plate 5 can be connected to the distillation column wall by bolts engaging with the screw holes or by welding.

[0022] Please see Figure 2The sealing assembly 3 includes a groove 7 formed along the thickness direction in the middle of a fixing plate 5. Fixing tubes 6 are symmetrically fixed to both sides of the groove 7. A sealing disc 10 is slidably mounted on the fixing tube 6. Ear plates are fixed to both sides of the sealing disc 10 and slidably mounted on the fixing tube 6. Guide rods 11 are fixed to the front end faces of the ear plates on both sides of the sealing disc 10. An axially retractable sliding rod 12 is slidably mounted inside the fixing tube 6. A spring 13 is fitted onto the sliding rod 12, and a washer is provided at the end of the sliding rod 12. A retaining ring is provided inside the fixing tube 6, and the front end of the spring 13 abuts against the retaining ring. The other end abuts against the washer, and the part of the sliding rod 12 protruding from the fixed tube 6 is fixedly connected to the guide rod 11; the front end of the rod groove 7 is provided with a sealing groove 9 that matches the sealing plate 10, and the end of the sealing plate 10 is provided with a boss, which is engaged with the sealing groove 9 to seal, thereby achieving the sealing inside the distillation column. The end is provided with a threaded groove 8 that cooperates with the connecting component 4. The rod groove 7 is used to insert the detection probe 2, and the diameter of the detection probe 2 matches the inner diameter of the rod groove 7. The diameters of the threaded groove 8 and the sealing groove 9 are larger than the diameter of the rod groove 7.

[0023] Specifically, when the detection probe 2 is inserted into the rod groove 7, the sealing plate 10 is pressed against the inside of the distillation column, and at the same time the spring 13 contracts, the sealing groove 9 opens, and the detection probe 2 can be used for detection. When the detection probe 2 is removed, the sealing plate 10 automatically slides backward and closes with the sealing groove 9 under the action of the spring 13, and the rod groove 7 automatically closes, thus achieving a seal inside the distillation column.

[0024] Please see Figure 3 The connecting component 4 includes a turntable 15 and a rotating sleeve. The rotating sleeve is fixedly connected to the detection probe 2, and a rotating shaft 14 is fixedly connected to the rotating sleeve. The turntable 15 is rotatably mounted on the rotating sleeve. The inner wall of the turntable 15 is provided with a groove that matches the rotating shaft 14, which realizes the axial positioning of the turntable 15 and the rotating sleeve, and at the same time provides a guiding effect for the turntable 15 to facilitate its rotation. The front end of the turntable 15 is provided with a threaded sleeve 16 that matches the threaded groove 8. When the turntable 15 rotates and connects with the threaded groove 8, it drives the detection probe 2 and the detector body 1 to move forward and backward, avoiding the entanglement of the wire. The end of the turntable 15 abuts against the detector body 1. The surface of the detector body 1 that abuts against the turntable 15 is provided with an annular guide rail, and the side wall of the end of the turntable 15 is provided with a sliding groove that matches the guide rail, which can reduce the friction between the turntable 15 and the detector body 1. At the same time, in conjunction with the friction texture provided on the outer wall of the end of the turntable 15, it further facilitates the rotation of the turntable 15 and can reduce the wear of the detector body 1.

[0025] Specifically, the turntable 15 rotates on the outer wall of the rotating shaft 14, causing the detector body 1 and the detection probe 2 to move forward and backward without rotating, thus reducing the winding of the wire. After the screw sleeve 16 is screwed into the screw groove 8, the detector body 1 and the detection probe 2 are quickly fixed.

[0026] Working principle: In actual operation, multiple fixing plates 5 are screwed or welded into the reserved holes at different heights on the wall of the distillation column. The concentration of gaseous ethanol inside the distillation column is detected by the detection probe 2 and displayed on the display screen in the detector body 1.

[0027] During testing, the testing probe 2 is inserted into the probe groove 7, and the sealing disc 10 is pushed open, causing the sealing disc 10 to move along... Figure 1 The front end slides in the direction shown, opening the sealing groove 9. During the sliding process of the sealing disc 10, the guide rod 11 is connected to the slide rod 12, causing the slide rod 12 to slide and drive the spring 13 to contract. Then the detection probe 2 extends into the distillation column for detection.

[0028] When the detection height needs to be changed, the detection probe 2 is taken out, and the sealing plate 10 slides to the rear end under the action of the spring 13 and engages with the sealing groove 9, so that the rod groove 7 is automatically sealed, eliminating the manual sealing operation step.

[0029] During the installation of the detection probe 2, since the connection line of the detector body 1 is fixed, after the detection probe 2 is inserted into the rod groove 7, the detector body 1 and the detection probe 2 move forward and backward without rotating by rotating the turntable 15. After the screw sleeve 16 is connected to the screw groove 8, the detector body 1 and the fixing plate 5 are fixed to each other, so as to realize the quick installation and disassembly of the detector body 1 and the detection probe 2, and avoid the tangling of the wire of the detector body 1.

[0030] The above description is merely a preferred embodiment of this utility model. Any simple modifications, equivalent changes, and alterations made by those skilled in the art to the above embodiments based on the technical essence of this utility model without departing from the scope of the technical solution of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. An ethanol rectification column concentration detection apparatus comprising a detector body (1) and a fixing plate (5), characterized in that: The front end of the detector body (1) is provided with a detection probe rod (2) through a connecting assembly (4), and the fixing plate (5) is provided with a sealing assembly (3); The sealing assembly (3) comprises a rod slot (7) formed in the middle of the fixing plate (5), and a fixing tube (6) is symmetrically arranged on both sides of the rod slot (7), a sealing disc (10) is slidably arranged on the fixing tube (6), guide rods (11) are fixedly connected to both sides of the sealing disc (10), a telescopic slide rod (12) is slidably arranged in the fixing tube (6), and the end of the slide rod (12) protruding from the fixing tube (6) is fixedly connected with the guide rod (11); a sealing groove (9) matched with the sealing disc (10) is formed at the front end of the rod slot (7), and a screw groove (8) matched with the connecting assembly (4) is formed at the end of the rod slot (7), and the rod slot (7) is used for inserting the detection probe rod (2).

2. The ethanol column concentration detection apparatus of claim 1, wherein: The diameter of the detection probe rod (2) matches the inner diameter of the rod slot (7), and the diameters of the screw groove (8) and the sealing groove (9) are greater than the diameter of the rod slot (7).

3. The ethanol column concentration detection apparatus of claim 1, wherein: The end of the sealing disc (10) is provided with a boss, and the boss is clamped and sealed with the sealing groove (9).

4. The ethanol column concentration detection apparatus of claim 1, wherein: A spring (13) is sleeved on the slide rod (12), a gasket is arranged at the end of the slide rod (12), a stop ring is arranged in the fixing tube (6), the front end of the spring (13) abuts against the stop ring, and the other end abuts against the gasket.

5. The ethanol column concentration detection apparatus of claim 1, wherein: The connecting assembly (4) comprises a rotating disc (15) and a rotating sleeve, the rotating sleeve is fixedly connected to the detection probe rod (2), the rotating disc (15) is rotatably arranged on the rotating sleeve, the rotating disc (15) is axially limited with the rotating sleeve, the front end of the rotating disc (15) is provided with a screw sleeve (16) matched with the screw groove (8), and the end thereof abuts against the detector body (1).

6. An ethanol column concentration detection apparatus according to claim 5, characterized in that: The rotating sleeve is fixedly connected with a rotating shaft (14), the surface of the detector body (1) abutting against the rotating disc (15) is provided with an annular guide rail, the inner wall of the rotating disc (15) is provided with a groove matched with the rotating shaft (14), and the side wall of the end of the rotating disc (15) is provided with a sliding groove matched with the guide rail.

7. The ethanol column concentration detection apparatus of claim 5, wherein: The outer wall of the end of the rotating disc (15) is provided with a friction pattern. The outer wall of the end of the rotating disc (15) is provided with a friction pattern.

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