Device and method for rapidly detecting ethyl acetate on line

Abstract

The invention provides a device and method for rapidly detecting ethyl acetate on line. The device comprises a supporting table, an overturning assembly is arranged on the supporting table, a magnetic stirrer is arranged on one side of the overturning assembly, a water bath kettle is arranged above the magnetic stirrer, a condenser is arranged in the water bath kettle, a condensation pipe is arranged on the condenser, and a water outlet is formed in the other side of the overturning assembly. A turnover assembly is arranged on the supporting table, a moving assembly is arranged on one side of the turnover assembly, the turnover assembly comprises a first base installed on the supporting table, a first air pump is arranged on the first base, a first piston rod is arranged in the first air pump, and the first piston rod is connected with a first connecting piece parallel to the first base; a connecting shaft is arranged in the first connecting piece, a rotating frame is arranged outside the connecting shaft, a turnover frame is arranged on the rotating frame, the ethyl acetate detection device is simple in structural design and convenient to install, an operator can conveniently detect concentration data of ethyl acetate, and the detection safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ethyl acetate detection, and in particular to a device and method for online rapid detection of ethyl acetate. Background Art

[0002] Ethyl acetate is an organic compound with the chemical formula C4H8O2. It is a colorless, volatile liquid with a sweet aroma and is often used as a solvent and flavoring. Produced by esterification of acetic acid and ethanol, it can participate in a variety of chemical reactions, such as hydrolysis, hydrogenation, and oxidation. It is widely used in coatings, inks, adhesives, and detergents because it can effectively dissolve a variety of organic compounds, and in food additives and flavorings because its fruity flavor makes it used as a flavoring ingredient in some foods. Ethyl acetate is often used as a solvent in chemical experiments, especially in organic synthesis reactions.

[0003] Since ethyl acetate is volatile and flammable, it should be used away from fire sources and in a well-ventilated environment. Inhalation of high concentrations of gas may cause headaches, dizziness, and other health problems. Therefore, it is necessary to test the concentration of ethyl acetate to improve the safety of operators when conducting related tests.

[0004] At present, the detection methods of ethyl acetate mainly include: gas chromatography: using the volatility of ethyl acetate in gas chromatography to separate and detect its concentration; liquid chromatography: separating ethyl acetate in liquid samples by liquid chromatography; infrared spectroscopy: identifying and quantifying according to the performance of the characteristic absorption peak of ethyl acetate in the infrared spectrum. The existing detection methods have the problems of low efficiency in detecting the concentration of ethyl acetate, and the difficulty in detecting the concentration of ethyl acetate in complex samples. The use of artificial mobile test equipment may cause respiratory irritation if ethyl acetate vapor is inhaled, resulting in symptoms such as coughing and difficulty breathing. High concentration exposure may cause headaches, dizziness, fatigue and other neurological symptoms, and may even cause coma.

[0005] Therefore, a reasonable method for detecting ethyl acetate concentration is needed to solve the problems existing in the current detection process. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] The problem to be solved by the present invention is to provide a device and method for online rapid detection of ethyl acetate to overcome the defects in the prior art.

[0008] (II) Technical solution

[0009] In order to solve the technical problem, the present invention provides an online rapid detection device for ethyl acetate, comprising a support platform, a flip assembly is arranged on the support platform, a magnetic stirrer is arranged on one side of the flip assembly, a water bath is arranged above the magnetic stirrer, a condenser is arranged in the water bath, a condenser is arranged on the condenser, and a moving assembly is arranged on one side of the flip assembly;

[0010] The flip assembly includes a first base mounted on the support platform, a first air pump is arranged on the first base, a first piston rod is arranged inside the first air pump, the first piston rod is connected to a first connecting member parallel to the first base, a connecting shaft is arranged inside the first connecting member, a rotating frame is arranged outside the connecting shaft, and a flip frame is arranged on the rotating frame;

[0011] The moving assembly includes a second base, a second air pump is arranged on the second base, the second air pump is connected to a second piston rod, a second connecting piece is connected to one side of the second piston rod, a supporting panel is arranged on one side of the second connecting piece, a track is arranged inside the other side of the supporting panel, a second motor located on the second base is arranged on one side of the supporting panel, a rotating rod is connected to one end of the second motor, a rotating column is arranged inside the rotating rod, a moving column is connected to one end of the rotating column, sliders installed on the slide rails are arranged on both sides of the moving column, and a rotating gripper is arranged at the lower end of the moving column.

[0012] Furthermore, the rotating gripper includes a rotating shaft connected to the movable column, a rotating disk is arranged below the rotating shaft, a connecting seat is arranged below the rotating disk, and the connecting seat is connected to a gripper via a second pin.

[0013] Furthermore, a plurality of the gripping clamps are provided, and the plurality of the gripping clamps are arranged in a circle around the rotating disk.

[0014] Furthermore, a plurality of the connecting seats are provided, and the plurality of connecting seats are arranged in a circle around the rotating disk.

[0015] Furthermore, the grabbing clamp is rotatably connected to the connecting seat.

[0016] Furthermore, the axis of the rotating shaft coincides with the axis of the rotating disk.

[0017] Furthermore, the rotating frame is rotatably connected to the base, and the connecting shaft is rotatably connected to the rotating frame.

[0018] Furthermore, the sliding block is slidably connected to the sliding rail, and the rotating rod is rotatably connected to the moving column via a first pin.

[0019] Furthermore, the movable column is slidably connected to the sliding block.

[0020] A method for an online rapid detection device for ethyl acetate, comprising:

[0021] S1. Place a measuring cylinder on the through hole of the flip frame on the flip assembly, add 50 mL of potassium hydroxide ethanol solution into the measuring cylinder, start the first air pump, the first air pump drives the first piston rod inside to move backward, drives the first connecting member connected thereto to move backward horizontally, the movement of the first connecting member drives the connecting shaft connected thereto to move backward in the annular hole on the rotating frame, and the movement of the connecting shaft drives the rotating frame to rotate forward, so that the flip frame installed above it flips, the measuring cylinder above the flip frame is tilted, and the potassium hydroxide ethanol solution inside is poured into the condenser on its front side;

[0022] S2, start the moving assembly, and under the push of the second air pump, the moving assembly drives the second piston rod to move forward, and pushes the supporting panel forward through the second connecting member connected thereto, and starts the first motor and the second motor, and the second motor rotates, driving the rotating rod and the rotating column inside it to rotate, and the rotation of the second motor drives the slider to move horizontally on the slide rail, so that the moving column can move on the X-axis, Y-axis and Z-axis;

[0023] S3, the moving column moves in three directions, so as to send the rotating gripper holding the condenser tube to the top of the condenser, and start the control system inside the rotating gripper. The control system controls the gripper of the rotating gripper to flip at a certain angle, so as to place the clamped condenser tube above the condenser;

[0024] S4. Turn on the magnetic stirrer and adjust the temperature in the water bath to a certain condensation temperature. After the condensation is allowed to stand for 1 hour, adjust the position of the rotating gripper by moving the assembly, take out the condenser tube and condenser from the water bath in turn, add 2 to 3 drops of phenolphthalein to the condenser, and titrate it with a standard hydrochloric acid titration solution to a light pink color. At the same time, perform a blank test, record relevant data, and calculate the concentration of the detected ethyl acetate.

[0025] Beneficial Effects

[0026] 1. The present invention provides an online rapid detection device for ethyl acetate, wherein a flip assembly is arranged on a support platform, a magnetic stirrer is arranged on one side of the flip assembly, a water bath is arranged above the magnetic stirrer, a condenser is arranged in the water bath, a condenser tube is arranged on the condenser, a moving assembly is arranged on one side of the flip assembly, and a rotating gripper is installed below the moving assembly. The ethyl acetate detection device has a simple structural design and is easy to install, so that operators can detect the concentration data of ethyl acetate conveniently.

[0027] 2. The present invention provides a device for online rapid detection of ethyl acetate. The mobile component designed in the detection device includes a second base, a second air pump is arranged on the second base, the second air pump is connected to a second piston rod, a support panel is arranged on one side of the second connecting member, a track is arranged inside the other side of the support panel, a rotating column is arranged inside the rotating rod, one end of the rotating column is connected to a moving column, the moving column is connected to a slider on the slide rail, and a rotating gripper is arranged below the moving column. Under the push of the second air pump, the mobile component drives the second piston rod to move forward, and the support panel is pushed forward by the second connecting member connected thereto, and the rotation of the second motor drives the rotating rod and the rotating column inside it to rotate. The rotation of the second motor drives the slider to move horizontally on the slide rail, so that the moving column can move on the X-axis, Y-axis and Z-axis, thereby realizing automatic operation in the condensation process, reducing manual operation, and improving the work efficiency of ethyl acetate concentration detection.

[0028] 3. The present invention provides a device for online rapid detection of ethyl acetate. The flip assembly designed for the detection device includes a first base installed on a support table, a first air pump is arranged on the first base, a first piston rod is arranged inside the first air pump, the first piston rod is connected to a first connecting member parallel to the first base, a connecting shaft is arranged inside the first connecting member, a rotating frame is arranged outside the connecting shaft, and a flip frame is arranged on the rotating frame. The flip assembly drives the first piston rod inside to move backward through the first air pump, and drives the first connecting member connected thereto to move backward horizontally. The movement of the first connecting member drives the connecting shaft connected thereto to move backward in the annular hole on the rotating frame. The movement of the connecting shaft drives the rotating frame to rotate forward, thereby causing the flip frame installed above it to flip, and pouring the potassium hydroxide ethanol solution inside into the condenser on its front side. The flip assembly reduces manual operation, saves labor time, reduces direct contact between personnel and volatile substances, and improves the safety of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a first stereogram of a device for online rapid detection of ethyl acetate according to the present invention;

[0030] Figure 2 A second stereoscopic diagram of a device for online rapid detection of ethyl acetate according to the present invention;

[0031] Figure 3 A third stereogram of a device for online rapid detection of ethyl acetate according to the present invention;

[0032] Figure 4 It is a first stereoscopic diagram of a flip assembly of a device for online rapid detection of ethyl acetate according to the present invention;

[0033] Figure 5It is a second stereoscopic view of the flip assembly of the device for online rapid detection of ethyl acetate of the present invention;

[0034] Figure 6 It is a first stereogram of a moving assembly of a device for online rapid detection of ethyl acetate according to the present invention;

[0035] Figure 7 A second stereoscopic diagram of a moving assembly of a device for online rapid detection of ethyl acetate according to the present invention;

[0036] Figure 8 The present invention is a structural diagram of a rotating gripper of a device for online rapid detection of ethyl acetate.

[0037] The names of the components corresponding to the reference numerals in the figure are: 1. flip assembly; 101. first air pump; 102. first base; 103. first piston rod; 104. first connecting member; 105. connecting shaft; 106. base; 107. rotating frame; 108. flip frame; 2. support table; 3. magnetic stirrer; 4. water bath; 5. condenser; 6. condenser tube; 7. moving assembly; 701. second base; 702. supporting panel; 70 3. Rotating rod; 704. Track; 705. Slide rail; 706. Sliding block; 707. Moving column; 708. Rotating column; 709. First pin; 710. Rotating gripper; 7101. Rotating disk; 7102. Grabbing clamp; 7103. Connecting seat; 7104. Second pin; 7105. Rotating shaft; 711. First motor; 712. Second motor; 713. Second air pump; 714. Second piston rod; 715. Second connecting piece. DETAILED DESCRIPTION

[0038] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0040] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0041] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0042] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0043] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0044] See also Figures 1 to 8 The present invention provides an online rapid detection device for ethyl acetate, comprising a support platform 2, a flip assembly 1 is arranged on the support platform 2, a magnetic stirrer 3 is arranged on one side of the flip assembly 1, a water bath 4 is arranged above the magnetic stirrer 3, a condenser 5 is arranged in the water bath 4, a condenser tube 6 is arranged on the condenser 5, and a moving assembly 7 is arranged on one side of the flip assembly 1;

[0045] The flip assembly 1 includes a first base 102 mounted on the support platform 2, a first air pump 101 is arranged on the first base 102, a first piston rod 103 is arranged inside the first air pump 101, the first piston rod 103 is connected to a first connecting member 104 parallel to the first base 102, a connecting shaft 105 is arranged inside the first connecting member 104, a rotating frame 107 is arranged outside the connecting shaft 105, and a flip frame 108 is arranged on the rotating frame 107;

[0046] The moving assembly 7 includes a second base 701, on which a second air pump 713 is arranged, and the second air pump 713 is connected to a second piston rod 714, one side of the second piston rod 714 is connected to a second connecting member 715, one side of the second connecting member 715 is provided with a supporting panel 702, the other side of the supporting panel 702 is internally provided with a track 704, one side of the supporting panel 702 is provided with a second motor 712 located on the second base 701, one end of the second motor 712 is connected to a rotating rod 703, a rotating column 708 is arranged inside the rotating rod 703, one end of the rotating column 708 is connected to a moving column 707, both sides of the moving column 707 are provided with sliders 706 installed on the slide rail 705, and the lower end of the moving column 707 is provided with a rotating gripper 710, which includes a rotating gripper 710. It includes a rotating shaft 7105 connected to the moving column 707, a rotating disk 7101 is arranged below the rotating shaft 7105, a connecting seat 7103 is arranged below the rotating disk 7101, the connecting seat 7103 is connected to a grabbing clamp 7102 through a second pin 7104, a plurality of grabbing clamps 7102 are provided, and the plurality of grabbing clamps 7102 are arranged in a circle around the rotating disk 7101, a plurality of connecting seats 7103 are provided, and the plurality of connecting seats 7103 are arranged in a circle around the rotating disk 7101, the grabbing clamps 7102 and the connecting seat 7103 are rotationally connected, the axis of the rotating shaft 7105 coincides with the axis of the rotating disk 7101, the slider 706 and the slide rail 705 are slidably connected, the rotating rod 703 is rotationally connected to the moving column 707 through a first pin 709, and the moving column 707 and the slider 706 are slidably connected.

[0047] See also Figures 1 to 5 The rotating frame 107 is rotatably connected to the base 106 , and the connecting shaft 105 is rotatably connected to the rotating frame 107 .

[0048] A method for an online rapid detection device for ethyl acetate, comprising:

[0049] S1, place the measuring cylinder on the through hole of the flip frame 108 on the flip assembly 1, add 50mL of potassium hydroxide ethanol solution into the measuring cylinder, start the first air pump 101, the first air pump 101 drives the internal first piston rod 103 to move backward, drives the first connecting member 104 connected thereto to move backward horizontally, the movement of the first connecting member 104 drives the connecting shaft 105 connected thereto to move backward in the annular hole on the rotating frame 107, the movement of the connecting shaft 105 drives the rotating frame 107 to rotate forward, so that the flip frame 108 installed above it flips, the measuring cylinder above the flip frame 108 is tilted, and the potassium hydroxide ethanol solution inside is poured into the condenser 5 on the front side thereof;

[0050] S2, start the moving assembly 7. Under the push of the second air pump 713, the moving assembly 7 drives the second piston rod 714 to move forward, and pushes the supporting panel 702 to move forward through the second connecting member 715 connected thereto. The first motor 711 and the second motor 712 are started. The second motor 712 rotates, driving the rotating rod 703 and the rotating column 708 inside the rotating rod 703 to rotate. The second motor 712 rotates to drive the slider 706 to move horizontally on the slide rail 705, so that the moving column 707 can move on the X-axis, the Y-axis and the Z-axis.

[0051] S3, the moving column 707 moves in three directions, so as to send the rotating gripper 710 holding the condenser tube 6 to the top of the condenser 5, and start the control system inside the rotating gripper 710, and the control system controls the gripper 7102 of the rotating gripper 710 to flip at a certain angle, so as to place the clamped condenser tube 6 above the condenser 5;

[0052] S4, turn on the magnetic stirrer 3, adjust the temperature in the water bath 4 to a certain condensation temperature, let the condensation stand for 1 hour, adjust the position of the rotating gripper 710 by moving the assembly 7, take out the condenser tube 6 and the condenser 5 from the water bath 4 in turn, add 2 to 3 drops of phenolphthalein to the condenser 5, and titrate it to a light pink color with a standard hydrochloric acid titration solution. At the same time, perform a blank test, record relevant data, and calculate the concentration of the detected ethyl acetate.

[0053] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0054] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A device for online rapid detection of ethyl acetate, characterized in that: The invention comprises a support platform (2), a flip assembly (1) is arranged on the support platform (2), a magnetic stirrer (3) is arranged on one side of the flip assembly (1), a water bath (4) is arranged above the magnetic stirrer (3), a condenser (5) is arranged in the water bath (4), a condenser tube (6) is arranged on the condenser (5), and a moving assembly (7) is arranged on one side of the flip assembly (1); The flip assembly (1) comprises a first base (102) mounted on the support platform (2); a first air pump (101) is arranged on the first base (102); a first piston rod (103) is arranged inside the first air pump (101); the first piston rod (103) is connected to a first connecting member (104) parallel to the first base (102); a connecting shaft (105) is arranged inside the first connecting member (104); a rotating frame (107) is arranged outside the connecting shaft (105); and a flip frame (108) is arranged on the rotating frame (107); The moving assembly (7) comprises a second base (701), a second air pump (713) is arranged on the second base (701), the second air pump (713) is connected to a second piston rod (714), one side of the second piston rod (714) is connected to a second connecting member (715), one side of the second connecting member (715) is provided with a supporting panel (702), the other side of the supporting panel (702) is provided with a track (704), and the supporting panel (702) A second motor (712) located on the second base (701) is provided on one side, one end of the second motor (712) is connected to a rotating rod (703), a rotating column (708) is provided inside the rotating rod (703), one end of the rotating column (708) is connected to a moving column (707), sliders (706) installed on the slide rails (705) are provided on both sides of the moving column (707), and a rotating gripper (710) is provided at the lower end of the moving column (707).

2. A device for online rapid detection of ethyl acetate according to claim 1, characterized in that: The rotating gripper (710) includes a rotating shaft (7105) connected to the movable column (707), a rotating disk (7101) is arranged below the rotating shaft (7105), a connecting seat (7103) is arranged below the rotating disk (7101), and the connecting seat (7103) is connected to a gripper (7102) via a second pin (7104).

3. A device for online rapid detection of ethyl acetate according to claim 2, characterized in that: The grabbing clamps (7102) are provided in plurality, and the plurality of grabbing clamps (7102) are arranged in a circle around the rotating disk (7101).

4. A device for online rapid detection of ethyl acetate according to claim 2, characterized in that: The connecting seats (7103) are provided in plurality, and the connecting seats (7103) are arranged in a circle around the rotating disk (7101).

5. A device for online rapid detection of ethyl acetate according to claim 2, characterized in that: The grabbing clamp (7102) and the connecting seat (7103) are rotatably connected.

6. A device for online rapid detection of ethyl acetate according to claim 2, characterized in that: The axis of the rotating shaft (7105) coincides with the axis of the rotating disk (7101).

7. A device for online rapid detection of ethyl acetate according to claim 1, characterized in that: The rotating frame (107) is rotatably connected to the base (106), and the connecting shaft (105) is rotatably connected to the rotating frame (107).

8. A device for online rapid detection of ethyl acetate according to claim 1, characterized in that: The sliding block (706) is slidably connected to the sliding rail (705), and the rotating rod (703) is rotatably connected to the moving column (707) via a first pin (709).

9. A device for online rapid detection of ethyl acetate according to claim 1, characterized in that: The moving column (707) and the sliding block (706) are slidably connected.

10. A method for an online rapid detection device for ethyl acetate, applied to an online rapid detection device for ethyl acetate as claimed in any one of claims 1 to 9, characterized in that: include: S1. Place a measuring cylinder on the through hole of the flip frame (108) on the flip assembly (1), add 50 mL of potassium hydroxide ethanol solution into the measuring cylinder, start the first air pump (101), the first air pump (101) drives the first piston rod (103) inside to move backward, drives the first connecting member (104) connected thereto to move backward horizontally, the movement of the first connecting member (104) drives the connecting shaft (105) connected thereto to move backward in the annular hole on the rotating frame (107), the movement of the connecting shaft (105) drives the rotating frame (107) to rotate forward, thereby causing the flip frame (108) installed above it to flip, the measuring cylinder above the flip frame (108) to topple, and the potassium hydroxide ethanol solution inside is poured into the condenser (5) on the front side thereof; S2, start the moving assembly (7), and the moving assembly (7) drives the second piston rod (714) to move forward under the push of the second air pump (713), and pushes the supporting panel (702) to move forward through the second connecting member (715) connected thereto, and starts the first motor (711) and the second motor (712), and the second motor (712) rotates, driving the rotating rod (703) and the rotating column (708) inside it to rotate, and the second motor (712) rotates to drive the slider (706) to move horizontally on the slide rail (705), so that the moving column (707) can move on the X-axis, Y-axis and Z-axis; S3, the moving column (707) moves in three directions, thereby sending the rotating gripper (710) holding the condenser tube (6) to the top of the condenser (5), starting the control system inside the rotating gripper (710), and the control system controls the gripper (7102) of the rotating gripper (710) to flip at a certain angle, so as to place the clamped condenser tube (6) above the condenser (5); S4, turn on the magnetic stirrer (3), adjust the temperature in the water bath (4) to a certain condensation temperature, let the condensation stand for 1 hour, adjust the position of the rotating gripper (710) by moving the assembly (7), take the condenser tube (6) and the condenser (5) out of the water bath (4) in turn, add 2 to 3 drops of phenolphthalein to the condenser (5), and titrate it with a standard hydrochloric acid titration solution until it turns light pink. At the same time, perform a blank test, record relevant data, and calculate the concentration of the detected ethyl acetate.

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