A laser particle sizer circulation system device and method of use

Abstract

The application discloses a kind of laser particle size instrument circulating system device and use method, belong to laser particle size instrument technical field, the circulating system is equipped with stirring module, ultrasonic vibration system, by electric control module can control the stirring module and ultrasonic vibration module, and user can set ultrasonic vibration power and time according to different measurement sample, set the stirring speed of stirring rod, and then better dispersion effect is realized to sample.And when residual impurities exist in flow sample cell, the circulating system can also be powered by ultrasonic vibration system, thereby removing impurities.Compared with the existing circulating sampling system, it has the characteristics of multifunction, intelligence and automation, and can realize functions such as sampling, drainage and pipeline flushing.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of laser particle size analyzers, and particularly relates to a laser particle size analyzer circulating system device and a use method thereof. BACKGROUND

[0002] A laser particle size analyzer is an instrument for analyzing particle size by measuring the spatial distribution of scattered or diffracted light of laser passing through particles using a photoelectric detector or a CCD detector. Since the laser particle size analyzer has the advantages of fast measurement speed, high stability, wide application, etc., it is the fastest developing particle size measurement method in recent years.

[0003] When instruments such as particle size analyzers and dynamic image analyzers process flowing analyte, the sample to be measured needs to be sent into the detection window through a circulating system. However, most of the existing circulating systems of laser particle size analyzers are manually operated to fill and drain water, which causes the circulating system to overflow due to excessive water in the water storage tank. A small part of the devices for controlling the circulating system through valves and pumps also have the disadvantages of complex structure, large occupied position, and low cost performance. SUMMARY

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a laser particle size analyzer circulating system device and a use method thereof, so as to solve the technical problems of the prior art, such as complex structure, large occupied position, and low cost performance of the device for controlling the circulating system through valves and pumps.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] A laser particle size analyzer circulating system device comprises a chassis connected with a laser particle size analyzer, an electric control module arranged on one side in the chassis, a stirring system arranged at the top end of the electric control module, a circulating pool arranged below the stirring system, a liquid level sensor arranged on the circulating pool, an ultrasonic vibration system arranged below the circulating pool, a peristaltic pump, an overflow pump, and an electromagnetic valve arranged on the other side in the chassis, and the peristaltic pump, the overflow pump, the electromagnetic valve, the liquid level sensor, and the ultrasonic vibration system are electrically connected with the electric control module.

[0007] Preferably, a pagoda straight-through string plate joint is arranged on the outer wall of the chassis, and the chassis is connected with the laser particle size analyzer through the pagoda straight-through string plate joint, and a shock-absorbing foot cup is arranged at the bottom of the chassis.

[0008] Preferably, the stirring system comprises an upper support fixed at one end of the electric control module, a motor rack arranged on the upper support, a motor arranged below the motor rack, a belt pulley connected with the motor through the motor rack at the end of the motor, a stirring rod support fixed at one end of the other end of the motor rack, a stirring rod arranged below the other end of the other end of the stirring rod support, a belt pulley arranged above the stirring rod support, a synchronous belt arranged on the belt pulley, and the belt pulley is connected with the stirring rod, and the stirring rod is immersed in the circulating pool.

[0009] Preferably, the lower part of the stirring rod is connected with a stirring blade, and the stirring blade is arranged in the circulating pool.

[0010] Preferably, the ultrasonic vibration system comprises an ultrasonic generator and a sink cover, the ultrasonic generator is arranged below the circulating pool and used for emitting ultrasonic waves into the circulating pool, and the sink cover is arranged below the ultrasonic generator.

[0011] Preferably, the bottom plate is provided with an electromagnetic valve support and a peristaltic pump support, the electromagnetic valve is fixed on the electromagnetic valve support, and the peristaltic pump is fixed on the peristaltic pump support.

[0012] Preferably, the circulating pool and the ultrasonic vibration system are both provided with a pagoda-shaped joint.

[0013] The application further discloses a use method of the laser particle size analyzer circulating system device, and the use method comprises the following steps:

[0014] S1: after a measuring personnel adds a sample to be measured in the circulating pool, starting a stirring system, an ultrasonic system and a peristaltic pump;

[0015] S2: after the sample to be measured is dispersed uniformly, a laser particle size analyzer saves space scattering light detected by the laser particle size analyzer and transmits data to an upper computer;

[0016] S3: after testing is completed, an electric control module controls the peristaltic pump and the electromagnetic valve to drain water;

[0017] S4: when the circulating pool liquid level reaches a liquid level of a liquid level sensor due to water inflow of the system, the electric control module controls an overflow pump to pump out excess water in the circulating pool.

[0018] Preferably, in S1, according to dispersion of the sample to be measured, motor stirring speed and vibration power and time of the ultrasonic generator are set in the electric control module.

[0019] Preferably, when all procedures are completed, the electric control module controls the peristaltic pump and the electromagnetic valve to again pump in and drain water, flushes the whole circulating system, and simultaneously opens the stirring system for eliminating bubbles generated in the process of draining water.

[0020] Compared with the prior art, the application has the following beneficial effects:

[0021] The circulating system of the particle size instrument disclosed in the application has the characteristics of multifunction, intelligence and automation compared with the existing circulating sampling system, the system can realize functions such as sampling, drainage and pipeline flushing, and the circulating system is provided with a stirring module and an ultrasonic vibration system, the stirring module and the ultrasonic vibration module can be controlled through an electric control module, and the user can set the ultrasonic vibration power and time and the stirring speed of the stirring rod according to different measured samples, so that a better dispersion effect of the sample is realized. When there are residual impurities in the flow sample cell, the circulating system can also remove the impurities through the ultrasonic vibration system with high power. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the application.

[0023] Figure 2 It is a schematic diagram of the water circulation principle of the application.

[0024] Wherein: 1-circulating pool; 2-stirring system; 21-motor frame; 22-belt pulley; 23-brushless DC motor; 24-synchronous belt; 25-stirring rod support; 26-stirring rod; 27-upper support; 3-ultrasonic vibration system; 31-ultrasonic generator; 32-water tank cover; 4-bottom disc; 5-solenoid valve support; 6-solenoid valve; 7-peristaltic pump support; 8-peristaltic pump; 9-overflow pump; 10-pyramid joint; 11-level sensor; 12-electric control module; 13-pyramid straight-through string plate joint; 14-damping foot cup; 15-laser particle size instrument; 16-flow sample cell; 17-submersible pump. DETAILED DESCRIPTION

[0025] In order for those skilled in the art to better understand the application scheme, the technical solutions in the embodiments of the application will be described clearly and completely in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, not all. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the application.

[0026] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting, unless the context otherwise requires. The use of the terms "first", "second" and other such

[0027] The application will be further described with reference to the drawings.

[0028] The application discloses a laser particle size analyzer circulating system device, comprising a chassis 4, the chassis 4 is connected with a laser particle size analyzer 15, an electric control module 12 is arranged on one side in the chassis 4, a stirring system 2 is arranged at the top of the electric control module 12, a circulating pool 1 is arranged below the stirring system 2, a liquid level sensor 11 is arranged on the circulating pool 1, an ultrasonic vibration system 3 is arranged below the circulating pool 1, a peristaltic pump 8, an overflow pump 9 and an electromagnetic valve 6 are arranged on the other side in the chassis 4 respectively, and the peristaltic pump 8, the overflow pump 9, the electromagnetic valve 6, the liquid level sensor 11 and the ultrasonic vibration system 3 are electrically connected with the electric control module 12.

[0029] The application further discloses a use method of the laser particle size analyzer circulating system device.

[0030] S1: after a measuring personnel adds a sample to be measured in the circulating pool 1, the stirring system 2, the ultrasonic system 3 and the peristaltic pump 8 are started;

[0031] S2: after the sample to be measured is uniformly dispersed, the laser particle size analyzer 15 saves space scattering light detected and transmits data to an upper computer;

[0032] S3: after testing is completed, the electric control module 12 controls the peristaltic pump 8 and the electromagnetic valve 6 to drain water;

[0033] S4: when the water amount of the system makes the liquid level of the circulating pool 1 reach the liquid level of the liquid level sensor 11, the electric control module 12 controls the overflow pump 9 to work and extract excess water in the circulating pool 1.

[0034] Reference Figure 1As shown, a laser particle size analyzer circulating system device, including circulating pool 1, stirring system 2, ultrasonic vibration system 3, chassis 4, electromagnetic valve bracket 5, electromagnetic valve 6, peristaltic pump bracket 7, peristaltic pump 8, overflow pump 9, pagoda joint 10, liquid level sensor 11, electronic control module 12, pagoda straight through string plate joint 13 and shock absorbing foot cup 14.

[0035] The stirring system 2 includes motor bracket 21, pulley 22, motor 23, synchronous belt 24, stirring rod bracket 25, stirring rod 26, upper bracket 27, the motor bracket 21 is connected to the upper bracket 27, the motor 23 is connected to the motor bracket 21, the pulley 22 is connected to the motor 23, the stirring rod 26 drives the synchronous belt 24 to realize the stirring function through the motor 23. The lower part of the stirring rod 26 is connected with stirring fan blade, the fan blade is placed in the circulating pool 1, and the stirring rod 26 is provided with a bearing bush with a 6801 bearing below the stirring rod bracket 25.

[0036] The ultrasonic vibration system 3 includes ultrasonic generator 31 and water tank cover 32, the bottom of the water tank cover 32 is provided with external threads in the form of a protruding cylinder, the ultrasonic generator 31 is connected to the lower part of the circulating pool 1 through threads and A, B glue, and is used for emitting ultrasonic waves into the circulating pool. The joints on the circulating pool 1 are all pagoda joints 16, and the circulating pool is provided with a liquid level sensor 15.

[0037] The electronic control module 12 is electrically connected with the stirring system 2 and the ultrasonic vibration system 3, and is used for controlling the opening and closing of the 42 brushless DC motor 23 and the ultrasonic generator 31.

[0038] The joints on the circulating pool 1 are all pagoda joints 10, and the circulating pool is provided with a liquid level sensor 11 on the side, which is used for sending signals to the overflow pump 9 to prevent overflow of the circulating pool 1.

[0039] The chassis 4 is provided with three circular holes on the side away from the circulating pool, which is responsible for assembling three pagoda straight through string plate joints 13, and is used for connecting pipelines. The chassis 4 is provided with a shock absorbing foot cup 14 below, which is used for being placed on an experimental platform and can play a role in shock absorption of the whole system.

[0040] In order to be clear in structure and convenient to assemble, the electronic control module 12 is provided with three circular holes on the inner side below, which is responsible for the connection of internal lines of the control board.

[0041] In order to make the motor work better, the electronic control module 12 is provided with a rectangular groove above, which is responsible for the placement of the motor for stirring rod 2 pulley movement.

[0042] For internal structure clear, assembly convenient the electric control module 12 leans inwards the side edge below three circular holes, below circular hole, be responsible for the connection of control board inside line.

[0043] The motor 23 is a 42 brushless motor.

[0044] The electric control module realizes the function: control 42 brushless motor (stirring system motor), control two-position three-way electromagnetic valve, peristaltic pump 8, overflow pump 9, ultrasonic vibration system 3, the rated voltage of all elements is 24V;

[0045] BLDC-8015A motor driver is needed for 42 brushless motor, the control of 42 motor mainly realizes motor opening and closing, speed regulation, etc.; two-position three-way electromagnetic valve is not needed to give electric signal to waterway normal circulation when drain electromagnetic valve is not needed, when drainage is needed, single-chip microcomputer only needs to output an electric signal through relay to control the action of electromagnetic valve, realizes drainage; ultrasonic vibration system 3 is equipped with ultrasonic generator circuit board, the circuit board needs 220V AC, still single-chip microcomputer sends electric signal to control the start and close of ultrasonic vibration system through relay (vibration frequency 40kHz, power 60w); peristaltic pump 8 cooperates with PnP type liquid level sensor, when the liquid level in circulating pool reaches the sensor position, outputs high-level signal (24v) through relay to transmit signal to single-chip microcomputer, when single-chip microcomputer receives high-level signal, sends signal through relay to control the action of overflow pump to drain water.Peristaltic pump 8 needs to control peristaltic pump motor forward and reverse through single-chip microcomputer through relay, when laser particle size analyzer 15 needs to measure sample, peristaltic pump 8 is forward to let diluted liquid circulate in the whole waterway system.When drainage is needed, peristaltic pump 8 is reversed to drain water.

[0046] As shown in Figure 2 The waterway principle drawing of laser particle size analyzer and circulating system, including laser particle size analyzer 15, flow sample pool 16, submersible pump 17, the flow sample pool 16 is connected to peristaltic pump 8 and circulating pool 1 through pagoda type straight-through series plate joint 13 on bottom plate 4 respectively.

[0047] The working principle of the application is:

[0048] Submersible pump 17 is connected with flow sample pool 16 in laser particle size analyzer 15, when laser particle size analyzer 15 controls submersible pump to water the whole system,

[0049] Measuring personnel add sample (generally powder particles) to be measured in circulating pool, after adding sample, start stirring system 2 and ultrasonic system 3, we can set motor 23 stirring speed, ultrasonic generator 31 vibration power and time according to the dispersion of sample.

[0050] At the same time of opening the stirring system 2 and the ultrasonic circulating system 3, the electric control module 12 sends a signal to start the peristaltic pump 8, at this time, the diluted sample is continuously circulated into the system. After the sample is evenly dispersed, the photoelectric detector in the laser particle size analyzer can save the detected spatial scattering light and transmit the data to the host computer for data processing to obtain the particle size distribution.

[0051] When the test is completed, the electric control module 12 controls the peristaltic pump 8 and the electromagnetic valve 6 to drain water.

[0052] When the water amount in the system is too much to cause the liquid level of the circulating tank 1 to reach the liquid level of the liquid level sensor 11, the electric control module 12 controls the overflow pump 9 to work to pump out the excess water in the circulating tank 1.

[0053] When all the procedures are completed, the electric control module 12 sends a signal to again fill water and drain water to flush the whole circulating system. In the flushing process, the stirring system 2 needs to be opened to eliminate the air bubbles generated in the process of draining water so that the solution is completely drained.

[0054] The above content is only for describing the technical idea of the present application, and cannot limit the protection scope of the present application. Any modification made according to the technical idea of the present application on the basis of the technical scheme falls within the protection scope of the present application.

Claims

1. A laser particle sizer circulation system apparatus, characterized by, The utility model relates to a laser particle size analyzer circulating system device, including: The bottom plate (4) is connected with the laser particle size analyzer (15), one side in the bottom plate (4) is provided with the electric control module (12), the top of electric control module (12) is provided with the stirring system (2), the stirring system (2) below is provided with the circulating pool (1), the circulating pool (1) is provided with liquid level sensor (11) on, the circulating pool (1) below is provided with ultrasonic vibration system (3), the other side in the bottom plate (4) is provided with peristaltic pump (8), overflow pump (9) and solenoid valve (6) respectively, and peristaltic pump (8), overflow pump (9), solenoid valve (6), liquid level sensor (11) and ultrasonic vibration system (3) are all electrically connected with electric control module (12); The stirring system (2) includes an upper support (27), one end of the upper support (27) is fixed on the top of the electric control module (12), the upper support (27) is provided with a motor bracket (21), the motor bracket (21) is provided with a motor (23) below, the motor (23) is connected with a belt pulley (22) through the motor bracket (21), the other end of the motor bracket (21) is fixed with one end of a stirring rod support (25), the other end of the stirring rod support (25) is provided with a stirring rod (26) below, the stirring rod support (25) is provided with a belt pulley (22) above, the belt pulley (22) is provided with a synchronous belt (24), and the belt pulley (22) is connected with the stirring rod (26), and the stirring rod (26) is immersed in the circulating pool (1); the ultrasonic vibration system (3) includes an ultrasonic generator (31) and a water tank cover (32), the ultrasonic generator (31) is arranged below the circulating pool (1) and is used to emit ultrasonic waves into the circulating pool, and the water tank cover (32) is arranged below the ultrasonic generator (31); The method for using the laser particle size analyzer circulating system device comprises the following steps: S1: after the measurer adds the sample to be measured in the circulating pool (1), the stirring system (2), the ultrasonic vibration system (3) and the peristaltic pump (8) are started; S2: after the sample to be measured is uniformly dispersed, the laser particle size analyzer (15) saves the detected space scattering light and transmits the data to the upper computer; S3: after the test is completed, the electric control module (12) controls the peristaltic pump (8) and the solenoid valve (6) to drain water; S4: when the water amount of the system makes the liquid level of the circulating pool (1) reach the liquid level of the liquid level sensor (11), the electric control module (12) controls the overflow pump (9) to work and extracts the excess water in the circulating pool (1).

2. The laser particle sizer circulation system of claim 1, wherein, The bottom plate (4) is provided with a pagoda type straight-through string plate joint (13) on the outer wall, and is connected with the laser particle size analyzer (15) through the pagoda type straight-through string plate joint (13), and the bottom plate (4) is provided with a shock absorbing foot cup (14) at the bottom.

3. The laser particle sizer circulation system of claim 1, wherein, The stirring rod (26) is connected with a stirring fan blade at the lower part, and the stirring fan blade is arranged in the circulating pool (1).

4. The laser particle sizer circulation system of claim 1, wherein, The bottom plate (4) is provided with an electromagnetic valve support (5) and a peristaltic pump support (7) inside, the solenoid valve (6) is fixed on the electromagnetic valve support (5), and the peristaltic pump (8) is fixed on the peristaltic pump support (7).

5. The laser particle sizer circulation system of claim 1, wherein, The circulating pool (1) and the ultrasonic vibration system (3) are both provided with a pagoda type joint (10).

6. The laser particle sizer circulation system of claim 1, wherein, In S1, according to the dispersion of the sample to be tested, the stirring speed of the motor (23) and the vibration power and time of the ultrasonic generator (31) are set in the electric control module (12).

7. The laser particle sizer circulation system of claim 1, wherein, In the use method, when all the procedures are completed, the electric control module (12) controls the peristaltic pump (8) and the electromagnetic valve (6) to flush the entire circulation system again, and at the same time, the stirring system (2) for eliminating the air bubbles generated in the drainage process is opened.

Images