Detection device and detection method for preparing low-concentration solution

Abstract

The invention relates to the technical field of solution detection, in particular to a detection device and a detection method for preparing a low-concentration solution. The shading container is fixedly installed at the top end of the base through a supporting frame, the shading container comprises a shading vessel used for providing a shading environment in the solution preparation process, a through hole is formed in the center of the bottom end of the shading vessel, and a rotating seat is rotationally arranged at the through hole; and the two groups of inserting frames are symmetrically and fixedly mounted on the two sides of the top end of the base and are separately arranged on the two sides of the shading container. In the actual preparation process of the low-concentration acetaldehyde solution, the phenomenon that polymerization is prone to occurring in the existing solution detection process is effectively reduced through combination of multiple modes, in the preparation process, it can be ensured that solute and the solution are completely mixed, residues are reduced, and through arrangement of the tvoc sensor, the detection accuracy is improved. The solution concentration is effectively monitored in real time, and the actual configuration concentration is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of solution detection, and in particular to a detection device and a detection method for preparing a low-concentration solution. Background Art

[0002] As a multi-purpose organic solution, acetaldehyde solution plays an important role in medical chemical production.

[0003] In the process of solution detection, polymerization is easy to occur, which affects the quality of the actual solution and has a negative impact on its subsequent use. In the process of configuration, polymerization is easy to occur due to factors such as light, shear force of stirring during configuration, and temperature, which in turn affects the entire configuration process. Due to the influence of the above factors, the concentration of the solution in the actual configuration process is prone to errors, affecting the quality of the actual configuration product. For this reason, we propose a detection device and detection method for the preparation of low-concentration solutions. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a detection device and a detection method for preparing a low-concentration solution.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A detection device for preparing a low-concentration solution, comprising:

[0007] Base;

[0008] The light-shielding container is fixedly mounted on the top of the base through a support frame. The light-shielding container includes a light-shielding vessel used to provide a light-shielding environment during solution preparation to reduce the influence of light on the polymerization phenomenon during solution preparation. A through hole is provided at the center of the bottom end of the light-shielding vessel, and a rotating seat is rotatably provided at the through hole to drive the container for configuring the solution to rotate, thereby ensuring effective mixing during solution preparation and reducing the large-scale mechanical stirring during conventional mixing.

[0009] The plug-in racks are provided with two groups, which are symmetrically fixedly installed on both sides of the top of the base and are respectively placed on both sides of the light-shielding container. The tops of the plug-in racks are both provided with liquid storage buckets for storing solutes and solvents in the solution preparation process.

[0010] The liquid inlet assembly is provided with two groups, which are symmetrically arranged on both sides of the top of the light-shielding container, and the liquid inlet assembly is connected with the corresponding liquid storage bucket. The liquid inlet assembly is provided with a liquid guide tube with adjustable liquid guide speed, which is used to control the introduction speed of the solute and the solution during the solution preparation process to ensure the uniformity of the solution preparation process. The liquid inlet assembly is also provided with an adjustment bracket and a lifting bracket for adjusting the inclination angle of the liquid guide tube, which is convenient for adjusting the water outlet position of the inner end of the liquid guide tube probing into the light-shielding container, and cooperates with the setting of the rotating seat rotating in the light-shielding container to realize the spiral introduction of the solution into the container, thereby achieving the purpose of homogeneous distribution without high-speed mechanical stirring;

[0011] The adjusting mechanism is arranged at the top of the base, and the adjusting mechanism includes a speed regulating component for adjusting the rotation speed of the rotating seat, and the adjusting mechanism is also provided with a threaded sleeve linked with two sets of lifting brackets, so as to achieve the up and down lifting of the adjusting bracket, thereby driving the inclination angle of the liquid guiding tube to be adjusted, and cooperate with the speed regulating component to drive the rotating seat to rotate, so as to achieve the homogeneous fusion of the solute and the solvent in the solution preparation process;

[0012] The TVOC sensor is arranged on the lower inner side of the light-shielding container and is used to detect the concentration of the solution in real time during the solution detection process, so as to facilitate the detection and preparation process.

[0013] As a preferred technical solution of the present application, the regulating mechanism includes a speed regulating assembly, which includes a shaft rotatably arranged at the top of the base and a driving motor fixedly arranged at the top of the base, the top of the output shaft of the driving motor is coaxially connected with a speed-changing round table I, the top of the shaft is coaxially connected with a speed-changing round table II, and the speed-changing round table II and the speed-changing round table I are centrally symmetrically distributed, the outer sides of the speed-changing round table I and the speed-changing round table II are sleeved with the same set of transmission belts, the top of the speed-changing round table II is coaxially connected to the rotating seat, and a toggle mechanism for adjusting the up and down movement of the transmission belt is fixedly installed on one side of the bottom end of the light-shielding container, and the transmission configuration of the transmission belt, the speed-changing round table I and the speed-changing round table II effectively realizes the speed transmission of the speed-changing round table I and the speed-changing round table II, thereby realizing the adjustable rotation of the rotating seat, which is convenient for driving the container to rotate during the configuration process to achieve homogeneous mixing;

[0014] The toggle mechanism includes a U-shaped bracket fixedly installed at the bottom end of the base, and limit holes are provided on the two side arms of the U-shaped bracket in the vertical direction. An adjusting screw is penetrated at the center of the bottom end of the U-shaped bracket, and a lifting block is penetrated through the outer thread of the adjusting screw. The transmission belt is penetrated on the lifting block, and both sides of the lifting block are connected with a directional mechanism that extends through the limit holes of the two side arms of the U-shaped bracket. The directional mechanism includes a contact plate fixedly connected to the side of the lifting block, and contact rods are penetrated on both sides of the contact plate. The outer side of the contact rod is sleeved with a spring that contacts the contact plate and the U-shaped bracket, thereby ensuring that after the adjusting screw is adjusted, the position of the lifting block is effectively fixed, thereby realizing the speed adjustment of the speed change round table II and ensuring the stability after adjustment.

[0015] As a preferred technical solution of the present application, the adjustment mechanism also includes a top plate fixedly installed on the upper side of the light-shielding container, a connecting column is fixedly installed on the top of the speed change table I, a reciprocating screw is coaxially connected to the top of the connecting column, the top of the reciprocating screw is rotatably connected to the bottom end of the top plate, the outer threaded sleeve of the reciprocating screw is provided with a threaded sleeve, and the threaded sleeve is fixedly connected to two sets of lifting brackets, and a directional rod is also fixedly installed on the side of the threaded sleeve, and a directional groove adapted to the directional rod is opened in the vertical direction on the side of the light-shielding vessel, which effectively ensures that the threaded sleeve can reciprocate in the vertical direction, thereby realizing the vertical position adjustment of the lifting bracket and the adjustment bracket, and providing a guarantee for the liquid point adjustment of the liquid inlet component during the liquid guiding process.

[0016] As a preferred technical solution of the present application, the liquid inlet component includes a fixed bracket fixedly installed on the upper side of the shading vessel, a through ring is fixedly installed on the top of the fixed bracket, a liquid guide tube is rotatably arranged on the inner side of the through ring, and the liquid guide tube is connected to the corresponding liquid storage bucket by a connecting hose, the lifting bracket is fixedly connected to the threaded sleeve, and the top of the lifting bracket is connected to an adjusting bracket supporting the bottom end of the liquid guide tube, thereby effectively adjusting the inclination angle of the liquid guide tube, so that during the solution preparation process, the landing point of the solution falling from the liquid guide tube constantly changes, and in conjunction with the rotation of the rotating seat controlled by the speed regulating component, the solvent and the solute are effectively distributed in a spiral manner after being introduced into the container, ensuring better homogeneous mixing of the two, and avoiding conventional mechanical stirring during the effective solution configuration process, reducing the probability of polymerization.

[0017] As a preferred technical solution of the present application, the liquid guide tube includes a tube body, on which a regulating valve is threaded. The regulating valve is used to adjust the flow space of the tube body and to adjust the falling speed of the solvent and solute inside, so as to better control and regulate the configuration process of the solution.

[0018] As a preferred technical solution of the present application, the rotating seat includes locking plates arranged on both sides of the through hole at the bottom end of the shading vessel, and connecting columns are fixedly connected between the locking plates. Friction balls that contact the shading vessel are installed on the sides of the locking plates close to each other, which effectively ensures the stable rotation of the rotating seat while reducing the friction during the rotation process.

[0019] As a preferred technical solution of the present application, an observation window is provided on the side of the light-shielding vessel for observing the internal preparation conditions;

[0020] A heat dissipation component is also installed through the side of the light-shielding vessel to provide a low-temperature environment inside, to eliminate the heat generated during the preparation process, to further reduce the occurrence of polymerization, and to ensure the effective preparation of the solution.

[0021] A detection method for a detection device for preparing a low-concentration solution, the configuration method is based on the above-mentioned detection device for preparing a low-concentration solution, and comprises the following steps:

[0022] Step S1, preliminary calculation and measurement: firstly, the required solvent and solute amount are calculated and measured according to the concentration value of the low-concentration acetaldehyde solution to be configured;

[0023] Step S2, material introduction: all the measured solute is introduced into one group of liquid storage buckets, part of the measured solvent is introduced into another group of liquid storage buckets, and the remaining solvent is retained for standby use;

[0024] Step S3, mixing configuration: In this process, the regulating valves on the two groups of liquid guiding tubes are controlled to open the tube bodies, so that the solvent and the solute are effectively introduced, and the solvent and the solute fall into the mixing container located at the top of the rotating seat, and in this process, the speed regulating mechanism is started to effectively realize the up and down rotation adjustment of the threaded sleeve, thereby driving the up and down adjustment start of the lifting bracket, and then the liquid guiding tube is effectively turned up and down under the action of the follow-up adjustment bracket, so that the position where the bottom of the liquid guiding tube falls into the water is constantly changed, and the setting of the container that rotates with the rotating seat is combined to make the landing point trajectory of the solvent and the solute inside the container on the spiral line, thereby effectively ensuring the uniform mixing of the solvent and the solute;

[0025] Step S4, condition change: during the configuration process, the speed change assembly on the adjustment mechanism can be adjusted, specifically, the adjustment screw is rotated, so that the lifting block can move in the vertical direction under the action of the torque and the guiding action of the directional mechanism, thereby realizing the position adjustment of the transmission belt, so that the contact position of the transmission belt on the speed change round table I and the speed change round table II changes, thereby realizing the adjustment of the angular velocity at the contact position of the two, thereby controlling the rotation adjustment of the rotating seat;

[0026] During the process of condition change, the heat dissipation component can be started to achieve internal temperature regulation, thereby effectively eliminating the internal heat during the solution preparation process and avoiding the occurrence of polymerization during the solution preparation process caused by temperature changes;

[0027] Step S5, eliminating the residue: after the final stage of configuration, the solvent and the solute in the original liquid storage bucket are mixed, and the remaining unconfigured solvent is introduced into the liquid storage bucket originally containing the solute, and the residual solute is flushed, so that the solute is completely distributed inside the solvent, and is introduced into the container with the help of the liquid inlet component to ensure the accuracy of the configured concentration and reduce the solvent residue. The preparation process is completed. After the configuration is completed, the solution is taken out from the container and poured into a light-shielding container for sealed storage, thereby completing the configuration of the entire low-concentration acetaldehyde solution;

[0028] During the above configuration process, observation can be made at the observation window on the light-shielding vessel to effectively monitor the configuration progress and achieve effective control of the configuration process. During the detection process, the concentration of the acetaldehyde solution configured inside can be monitored in real time through the TVOC sensor to facilitate control of concentration changes.

[0029] The beneficial effects of the present invention are:

[0030] 1. Through the shading setting of the shading vessel in the configuration device, the light exposure during the configuration process is effectively reduced to effectively avoid the polymerization problem that may occur during solution detection;

[0031] 2. The container is self-rotating under the action of the speed regulating component and the rotating seat, and the lifting bracket cooperates with the regulating mechanism and the setting of the regulating bracket and the liquid guiding tube, so that the trajectory of the liquid outlet of the liquid guiding tube in the container is spiral, ensuring the effective and uniform mixing of the solvent and the solute. In this process, the rotation speed of the rotating seat and the container can be adjusted, thereby achieving homogeneous mixing of the solution and the solute, and avoiding the occurrence of polymerization caused by large shear force caused by mechanical stirring in the existing configuration process;

[0032] 3. Through the setting of heat dissipation components, the heat is effectively eliminated during the configuration process, further reducing the probability of polymerization;

[0033] 4. During the configuration process, the solvent is separated and the latter part of the solvent is used to flush the liquid storage bucket containing the solute, which effectively ensures the accuracy of the actual configuration concentration and reduces the residue;

[0034] 5. During the preparation process, the concentration of the prepared acetaldehyde solution can be detected in real time through the setting of the tvoc sensor, so as to better realize the detection during the preparation process and facilitate the control of the preparation accuracy.

[0035] In summary, in the actual process of preparing low-concentration acetaldehyde solution, the present application effectively reduces the phenomenon of polymerization that is easy to occur in the existing solution detection process through a combination of various methods. During the preparation, it can also ensure the complete mixing of the solute and the solution to reduce the residue. Through the setting of the TVOC sensor, the concentration of the solution can be effectively monitored in real time to ensure the actual prepared concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the structure of a detection device for preparing a low-concentration solution proposed by the present invention;

[0037] Figure 2 This is a schematic structural diagram from another perspective of a detection device for preparing a low-concentration solution proposed by the present invention;

[0038] Figure 3 A schematic diagram of the structure of a light-shielding container of a detection device for preparing a low-concentration solution proposed by the present invention;

[0039] Figure 4 This is a schematic diagram of the main structure of a rotating seat of a detection device for preparing a low-concentration solution proposed by the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of an adjustment mechanism of a detection device for preparing a low-concentration solution proposed by the present invention;

[0041] Figure 6 This is a schematic diagram of the structure of a directional mechanism of a detection device for preparing a low-concentration solution proposed by the present invention;

[0042] Figure 7 This is a schematic diagram of the structure of a liquid inlet component of a detection device for preparing a low-concentration solution proposed by the present invention;

[0043] Figure 8 The present invention provides a schematic cross-sectional structural diagram of a liquid guide tube of a detection device for preparing a low-concentration solution.

[0044] In the figure: 1, base; 2, light shielding container; 21, light shielding vessel; 22, rotating seat; 221, positioning plate; 222, connecting column; 223, friction ball; 3, insertion rack; 4, liquid storage bucket; 5, adjustment mechanism; 51, shaft; 52, transmission belt; 53, U-shaped bracket; 54, lifting block; 55, adjustment screw; 56, speed change round table I; 57, driving motor; 58, orientation mechanism; 581, contact plate ; 582, resistance rod; 583, spring; 59, connecting column; 510, reciprocating screw; 511, threaded sleeve; 512, top plate; 513, speed change table II; 6, heat dissipation assembly; 7, observation window; 8, liquid inlet assembly; 81, lifting bracket; 82, adjusting bracket; 83, threading ring; 84, liquid guide tube; 841, tube body; 842, regulating valve; 85, fixed bracket; 9, TVOC sensor. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0046] Reference Figure 1-8 , a detection device for preparing a low-concentration solution, comprising:

[0047] Base 1;

[0048] The light-shielding container 2 is fixedly mounted on the top of the base 1 through a support frame. The light-shielding container 2 includes a light-shielding vessel 21 for providing a light-shielding environment during the solution preparation process to reduce the influence of light on the polymerization phenomenon during the solution preparation process. A through hole is provided at the center of the bottom end of the light-shielding vessel 21, and a rotating seat 22 is rotatably arranged at the through hole to drive the container for configuring the solution to rotate, thereby ensuring effective mixing during the solution preparation process and reducing the large-scale mechanical stirring during the conventional mixing process; the rotating seat 22 includes positioning plates 221 respectively arranged on both sides of the through hole at the bottom end of the light-shielding vessel 21, and connecting columns 222 are fixedly connected between the positioning plates 221. The sides of the positioning plates 221 close to each other are each installed with friction balls 223 that contact the light-shielding vessel 21, which effectively ensure the stable rotation of the rotating seat 22 while reducing the friction during the rotation process;

[0049] The inserting rack 3 is provided with two groups, which are symmetrically fixedly installed on both sides of the top of the base 1 and are respectively placed on both sides of the light shielding container 2. The top of the inserting rack 3 is inserted with a liquid storage bucket 4 for storing solutes and solvents in the solution preparation process;

[0050] The liquid inlet assembly 8 is provided with two groups, which are symmetrically arranged on both sides of the top of the light-shielding container 2, and the liquid inlet assembly 8 is connected with the corresponding liquid storage bucket 4. The liquid inlet assembly 8 is provided with a liquid guide tube 84 with an adjustable liquid guide speed, which is used to control the introduction speed of the solute and the solution during the solution preparation process to ensure the uniformity of the solution preparation process. The liquid inlet assembly 8 is also provided with an adjustment bracket 82 and a lifting bracket 81 for adjusting the inclination angle of the liquid guide tube 84, which is convenient for adjusting the water outlet position of the inner end of the liquid guide tube 84 probing into the light-shielding container 2, and cooperates with the setting of the rotating seat 22 rotating in the light-shielding container 2 to realize the solution being spirally introduced into the container, thereby achieving the purpose of homogeneous distribution without high-speed mechanical stirring;

[0051] The adjusting mechanism 5 is arranged at the top of the base 1, and the adjusting mechanism 5 includes a speed regulating component for adjusting the rotation speed of the rotating seat 22, and the adjusting mechanism 5 is also provided with a threaded sleeve 511 linked with the two sets of lifting brackets 81, so as to achieve the up and down lifting of the adjusting bracket 82, thereby driving the inclination angle of the liquid guiding tube 84 to follow the adjustment, and cooperate with the speed regulating component to drive the rotating seat 22 to rotate, so as to achieve the homogeneous fusion of the solute and the solvent in the solution preparation process;

[0052] An observation window 7 is provided on the side of the light shielding vessel 21 for observing the internal preparation conditions;

[0053] A heat dissipation component 6 is also installed through the side of the light shielding vessel 21 to provide a low-temperature environment inside, to eliminate the heat generated during the preparation process, to further reduce the occurrence of polymerization, and to ensure the effective preparation of the solution;

[0054] The TVOC sensor 9 is arranged at the lower side of the interior of the light-shielding container 2 and is used to detect the concentration of the solution in real time during the solution detection process, so as to facilitate the detection and preparation process.

[0055] Reference Figure 5-Figure 6 , the regulating mechanism 5 includes a speed regulating component, which includes a shaft 51 rotatably arranged at the top of the base 1 and a driving motor 57 fixedly arranged at the top of the base 1, the top of the output shaft of the driving motor 57 is coaxially connected with a speed-changing round table Ⅰ56, the top of the shaft 51 is coaxially connected with a speed-changing round table Ⅱ513, and the speed-changing round table Ⅱ513 and the speed-changing round table Ⅰ56 are centrally symmetrically distributed, and the outer sides of the speed-changing round table Ⅰ56 and the speed-changing round table Ⅱ513 are sleeved with the same group of transmission belts 52, and the top of the speed-changing round table Ⅱ513 is coaxially connected to the rotating seat 22, and a toggle mechanism for adjusting the up and down movement of the transmission belt 52 is fixedly installed on one side of the bottom end of the light-shielding container 2, and the transmission configuration of the transmission belt 52, the speed-changing round table Ⅰ56 and the speed-changing round table Ⅱ513 effectively realizes the speed transmission of the speed-changing round table Ⅰ56 and the speed-changing round table Ⅱ513, thereby realizing the adjustable speed rotation of the rotating seat 22, which is convenient for driving the container to rotate during the configuration process to achieve homogeneous mixing;

[0056] The toggle mechanism includes a U-shaped bracket 53 fixedly mounted on the bottom end of the base 1, and limit holes are provided on the two side arms of the U-shaped bracket 53 in the vertical direction. An adjusting screw 55 is provided through the center of the bottom end of the U-shaped bracket 53, and a lifting block 54 is threadedly penetrated on the outer side of the adjusting screw 55. The transmission belt 52 is penetrated on the lifting block 54, and both sides of the lifting block 54 are connected with a directional mechanism 58 that extends through the limit holes of the two side arms of the U-shaped bracket 53. The directional mechanism 58 includes a contact plate 581 fixedly connected to the side of the lifting block 54, and contact rods 582 are provided on both sides of the contact plate 581. The outer side of the contact rod 582 is sleeved with a spring 583 that contacts the contact plate 581 and the U-shaped bracket 53, so as to ensure that after the adjusting screw 55 is adjusted, the position of the lifting block 54 is effectively set, so as to realize the speed adjustment of the speed change round table II 513 and ensure the stability after adjustment.

[0057] The adjusting mechanism 5 also includes a top plate 512 fixedly installed on the upper side of the light-shielding container 2, a connecting column 59 is fixedly installed on the top of the speed-changing table Ⅰ56, a reciprocating screw 510 is coaxially connected to the top of the connecting column 59, the top of the reciprocating screw 510 is rotatably connected to the bottom end of the top plate 512, a threaded sleeve 511 is provided on the outer thread of the reciprocating screw 510, and the threaded sleeve 511 is fixedly connected to two sets of lifting brackets 81, and an directional rod is also fixedly installed on the side of the threaded sleeve 511, and an directional groove adapted to the directional rod is provided along the vertical direction on the side of the light-shielding vessel 21, which effectively ensures that the threaded sleeve 511 can reciprocate in the vertical direction, thereby realizing the vertical position adjustment of the lifting bracket 81 and the adjusting bracket 82, and providing a guarantee for the liquid inlet component 8 to adjust the landing point during the liquid guiding process.

[0058] Reference Figure 7 The liquid inlet component 8 includes a fixed bracket 85 fixedly installed on the upper side of the shading vessel 21, a through-ring 83 is fixedly installed on the top of the fixed bracket 85, a liquid guide tube 84 is rotatably arranged on the inner side of the through-ring 83, and the liquid guide tube 84 is connected to the corresponding liquid storage bucket 4 by a connecting hose, the lifting bracket 81 is fixedly connected to the threaded sleeve 511, and the top of the lifting bracket 81 is connected to an adjusting bracket 82 for supporting the bottom end of the liquid guide tube 84, thereby effectively adjusting the inclination angle of the liquid guide tube 84, so that during the solution preparation process, the landing point of the solution falling from the liquid guide tube 84 is constantly changing, and the rotation of the rotating seat 22 controlled by the speed regulating component is coordinated, so that the solvent and the solute are effectively distributed in a spiral after being introduced into the container, so as to ensure that the two are well mixed and homogeneous, and the conventional mechanical stirring is avoided in the process of effective solution configuration, and the probability of polymerization is reduced.

[0059] Reference Figure 8The liquid guide tube 84 includes a tube body 841, and a regulating valve 842 is threadedly penetrated on the tube body 841. The regulating valve 842 is used to adjust the flow space of the tube body 841 and to adjust the falling speed of the solvent and the solute inside, so as to better control and adjust the configuration process of the solution.

[0060] A detection method for a detection device for preparing a low-concentration solution, the configuration method is based on the above-mentioned detection device for preparing a low-concentration solution, and comprises the following steps:

[0061] Step S1, preliminary calculation and measurement: firstly, the required solvent and solute amount are calculated and measured according to the concentration value of the low-concentration acetaldehyde solution to be configured;

[0062] Step S2, material introduction: all the measured solute is introduced into one group of liquid storage buckets 4, and part of the measured solvent is introduced into another group of liquid storage buckets 4, and the remaining solvent is retained for standby use;

[0063] Step S3, mixing configuration: In this process, the regulating valves 842 on the two groups of liquid guide tubes 84 are controlled to open the tube body 841, so that the solvent and the solute are effectively introduced, and the solvent and the solute fall into the mixing container located at the top of the rotating seat 22. In this process, the speed regulating mechanism is started to effectively realize the up and down rotation adjustment of the threaded sleeve 511, thereby driving the up and down adjustment start of the lifting bracket 81, so that the liquid guide tube 84 is effectively turned up and down under the action of the follow-up adjustment bracket 82, so that the position where the bottom of the liquid guide tube 84 falls into the water is constantly changed, and the setting of the container that rotates with the rotating seat 22 is combined with the setting of the container so that the landing point trajectory of the solvent and the solute inside the container is on the spiral line, thereby effectively ensuring the uniform mixing of the solvent and the solute;

[0064] Step S4, condition change: During the configuration process, the speed change assembly on the adjustment mechanism 5 can be adjusted, specifically, the adjustment screw 55 is rotated, so that the lifting block 54 can move in the vertical direction under the action of torque and the guiding action of the directional mechanism 58, thereby realizing the position adjustment of the transmission belt 52, so that the contact position of the transmission belt 52 on the speed change round table I 56 and the speed change round table II 513 changes, thereby realizing the adjustment of the angular velocity at the contact position of the two, thereby controlling the rotation adjustment of the rotating seat 22;

[0065] During the condition change process, the heat dissipation component 6 can be started to achieve internal temperature regulation, thereby effectively eliminating the internal heat during the solution preparation process and avoiding the occurrence of polymerization during the solution preparation process caused by temperature changes;

[0066] Step S5, eliminating the residue: after the final stage of configuration, the solvent and the solute in the original liquid storage bucket 4 are mixed, and the remaining unconfigured solvent is introduced into the liquid storage bucket 4 originally containing the solute, and the residual solute is flushed, so that the solute is completely distributed inside the solvent, and is introduced into the container with the help of the liquid inlet component 8, so as to ensure the accuracy of the configured concentration and reduce the residual solvent. At this point, the preparation process is completed. After the configuration is completed, the solution is taken out of the container and poured into a light-shielding container for sealed storage, thereby completing the configuration of the entire low-concentration acetaldehyde solution;

[0067] During the above configuration process, observation can be made at the observation window 7 on the shading vessel 21 to effectively monitor the configuration progress and achieve effective control of the configuration process. During the detection process, the concentration of the acetaldehyde solution configured inside can be monitored in real time through the TVOC sensor 9 to facilitate control of concentration changes.

[0068] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0069] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A detection device for preparing low-concentration solutions, characterized in that: include: Base (1); A light-shielding container (2) is fixedly mounted on the top of the base (1) via a support frame, the light-shielding container (2) comprises a light-shielding vessel (21) for providing a light-shielding environment during solution preparation, a through hole is provided at the center of the bottom end of the light-shielding vessel (21), and a rotating seat (22) is rotatably provided at the through hole; The inserting rack (3) is provided with two groups, which are symmetrically fixedly installed on both sides of the top of the base (1) and are respectively placed on both sides of the light shielding container (2). The top of each inserting rack (3) is provided with a liquid storage bucket (4) for storing solutes and solvents in the solution preparation process; The liquid inlet assembly (8) is provided with two groups, which are symmetrically arranged on both sides of the top of the light-shielding container (2), and the liquid inlet assembly (8) is connected with the corresponding liquid storage bucket (4). The liquid inlet assembly (8) is provided with a liquid guide tube (84) with adjustable liquid guide speed. The liquid inlet assembly (8) is also provided with an adjustment bracket (82) and a lifting bracket (81) for adjusting the inclination angle of the liquid guide tube (84), so as to facilitate the adjustment of the water outlet position of the inner end of the liquid guide tube (84) protruding into the light-shielding container (2). In conjunction with the setting of the rotating seat (22) rotating in the light-shielding container (2), the solution is spirally introduced into the container, thereby achieving the purpose of homogeneous distribution without high-speed mechanical stirring. An adjusting mechanism (5) is arranged at the top of the base (1), and the adjusting mechanism (5) comprises a speed regulating component for adjusting the rotation speed of the rotating seat (22), and the adjusting mechanism (5) is also provided with a threaded sleeve (511) linked to the two sets of lifting brackets (81); The TVOC sensor (9) is arranged on the lower side of the interior of the light-shielding container (2).

2. A detection device for preparing a low-concentration solution according to claim 1, characterized in that: The regulating mechanism (5) comprises a speed regulating assembly, which comprises a shaft (51) rotatably arranged at the top of the base (1) and a driving motor (57) fixedly arranged at the top of the base (1); the top of the output shaft of the driving motor (57) is coaxially connected to a speed-changing round table I (56); the top of the shaft (51) is coaxially connected to a speed-changing round table II (513); the speed-changing round table II (513) and the speed-changing round table I (56) are centrally symmetrically distributed; the outer sides of the speed-changing round table I (56) and the speed-changing round table II (513) are sleeved with the same set of transmission belts (52); the top of the speed-changing round table II (513) is coaxially connected to the rotating seat (22); and a toggle mechanism for adjusting the upward and downward movement of the transmission belt (52) is fixedly installed on one side of the bottom end of the light-shielding container (2); The toggle mechanism comprises a U-shaped bracket (53) fixedly mounted on the bottom end of the base (1), and limit holes are arranged on the support arms on both sides of the U-shaped bracket (53) in the vertical direction. An adjusting screw (55) is arranged through the center of the bottom end of the U-shaped bracket (53), and a lifting block (54) is threadedly arranged on the outer side of the adjusting screw (55). The transmission belt (52) is arranged on the lifting block (54), and both sides of the lifting block (54) are connected with a directional mechanism (58) extending through the limit holes of the support arms on both sides of the U-shaped bracket (53). The directional mechanism (58) comprises a contact plate (581) fixedly connected to the side of the lifting block (54), and a contact rod (582) is arranged through both sides of the contact plate (581), and a spring (583) is sleeved on the outer side of the contact rod (582) for contacting the contact plate (581) and the U-shaped bracket (53).

3. A detection device for preparing a low-concentration solution according to claim 2, characterized in that: The adjustment mechanism (5) also includes a top plate (512) fixedly mounted on the upper side of the light-shielding container (2); a connecting column (59) is fixedly mounted on the top of the speed-changing table I (56); a reciprocating screw (510) is coaxially connected to the top of the connecting column (59); the top of the reciprocating screw (510) is rotatably connected to the bottom of the top plate (512); a threaded sleeve (511) is threadedly sleeved on the outer side of the reciprocating screw (510); the threaded sleeve (511) is fixedly connected to two sets of lifting brackets (81); a directional rod is also fixedly mounted on the side of the threaded sleeve (511); and a directional groove adapted to the directional rod is provided on the side of the light-shielding container (21) in the vertical direction.

4. A detection device for preparing a low-concentration solution according to claim 1, characterized in that: The liquid inlet assembly (8) comprises a fixed bracket (85) fixedly mounted on the upper side of the light shielding vessel (21); a penetration ring (83) is fixedly mounted on the top of the fixed bracket (85); a liquid guide tube (84) is rotatably arranged inside the penetration ring (83); and the liquid guide tube (84) is connected to the corresponding liquid storage bucket (4) by a connecting hose; the lifting bracket (81) is fixedly connected to the threaded sleeve (511); and the top of the lifting bracket (81) is connected to an adjustment bracket (82) for supporting the bottom end of the liquid guide tube (84).

5. A detection device for preparing a low-concentration solution according to claim 4, characterized in that: The liquid guiding tube (84) comprises a tube body (841), and a regulating valve (842) is threadedly provided on the tube body (841), and the regulating valve (842) is used to adjust the flow space of the tube body (841).

6. A detection device for preparing a low-concentration solution according to claim 1, characterized in that: The rotating seat (22) comprises positioning plates (221) respectively arranged on both sides of the through hole at the bottom end of the light shielding vessel (21), connecting columns (222) are fixedly connected between the positioning plates (221), and friction balls (223) that contact with the light shielding vessel (21) are installed on the sides of the positioning plates (221) that are close to each other.

7. A detection device for preparing a low-concentration solution according to claim 1, characterized in that: An observation window (7) is provided on the side of the light shielding vessel (21); A heat dissipation component (6) is also installed in a penetrating manner on the side of the light shielding vessel (21).

8. A detection method for a detection device for detecting a low-concentration solution according to any one of claims 1 to 7, characterized in that: The configuration method is based on the above-mentioned detection device for preparing low-concentration solution, and comprises the following steps: Step S1, preliminary calculation and measurement: firstly, the required solvent and solute amount are calculated and measured according to the concentration value of the low-concentration acetaldehyde solution to be configured; Step S2, material introduction: all the measured solute is introduced into one group of liquid storage buckets (4), part of the measured solvent is introduced into another group of liquid storage buckets (4), and the remaining solvent is retained for standby use; Step S3, mixing configuration: In this process, the regulating valves (842) on the two groups of liquid guide tubes (84) are controlled to open the tube body (841), so that the solvent and the solute are effectively introduced, and the solvent and the solute fall into the mixing container located at the top of the rotating seat (22). In this process, the speed regulating mechanism is activated to effectively realize the up and down rotation adjustment of the threaded sleeve (511), thereby driving the up and down adjustment start of the lifting bracket (81), so that the liquid guide tube (84) is effectively turned up and down under the action of the follow-up adjustment bracket (82), so that the position where the bottom of the liquid guide tube (84) falls into the water is constantly changed, and the setting of the container that rotates with the rotating seat (22) makes the landing point trajectory of the solvent and the solute inside the container on the spiral line, thereby effectively ensuring the uniform mixing of the solvent and the solute; Step S4, condition change: during the configuration process, the speed change assembly on the adjustment mechanism (5) can be adjusted, specifically, the adjustment screw (55) can be rotated, so that the lifting block (54) can be moved in the vertical direction under the action of torque and the guiding action of the directional mechanism (58), thereby realizing the position adjustment of the transmission belt (52), so that the contact position of the transmission belt (52) on the speed change round table I (56) and the speed change round table II (513) changes, thereby realizing the adjustment of the angular velocity at the contact position between the two, thereby controlling the rotation adjustment of the rotating seat (22); During the process of condition change, the heat dissipation component (6) can be activated to achieve internal temperature regulation, thereby effectively eliminating the internal heat during the solution preparation process and avoiding the occurrence of polymerization during the solution preparation process caused by temperature changes; Step S5, eliminating the residue: after the final stage of the preparation, the solvent and the solute in the original liquid storage bucket (4) are mixed, and the remaining unprepared solvent is introduced into the liquid storage bucket (4) originally containing the solute, and the residual solute is flushed, so that the solute is completely distributed in the solvent, and is introduced into the container with the help of the liquid inlet component (8), so as to ensure the accuracy of the prepared concentration and reduce the solvent residue. At this point, the preparation process is completed. After the preparation is completed, the solution is taken out of the container and poured into a light-shielding container for sealed storage, thereby completing the preparation of the entire low-concentration acetaldehyde solution; During the configuration process, observation can be made at the observation window (7) on the light-shielding vessel (21), thereby effectively monitoring the configuration process and achieving effective control of the configuration process. During the detection process, the concentration of the acetaldehyde solution configured inside can be monitored in real time through the TVOC sensor (9), thereby facilitating control of changes in the concentration.

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